A portable display complete for wireless screen projection

Abstract

The application belongs to the field of wireless displayers, in particular to a portable display whole machine for wireless screen projection, comprising: a display assembly comprising a screen and a back plate arranged at the back of the screen; a support assembly comprising a support arranged outside the back plate through a damping rotating shaft; a limiting assembly comprising a baffle fixedly arranged at the back of the screen, the surface of the baffle being provided with a groove matched with the outer contour of the support, and the inside of the baffle being connected with a locking pin through a spring, the locking pin and the groove being arranged in penetration; the outer wall of the support is provided with a locking groove matched with the outer contour of the locking pin, through the arrangement of the locking pin, the screen can be clamped with the support through the locking pin when carrying to convert the support into a fixed pair, thereby improving the stability when the user holds the support to carry the screen.

Description

Technical Field

[0001] This invention relates to the field of wireless displays, specifically a portable display unit for wireless screen projection. Background Technology

[0002] The wireless monitor is a portable display device designed for mobile office and entertainment scenarios. Its core feature is the built-in wireless signal receiving module, which can mirror and extend the screen with mobile phones, laptops or game consoles through wireless transmission protocols such as Wi-Fi, Miracast or millimeter wave, thus eliminating the need for cumbersome video connection cables and bringing users a clean and free large-screen experience.

[0003] Beneath the back panel of the monitor, a foldable support leg is hinged and installed via a damping hinge mechanism. This structure utilizes friction plates and elastic washers inside the hinge to generate a stable resistance torque, allowing the support leg to stop and hover at any unfolded angle, thus providing stable support for the monitor on the desktop and meeting the user's viewing needs from different angles.

[0004] The aforementioned existing technology has the following drawbacks: In actual mobile carrying scenarios, users are often accustomed to holding the support leg with one hand to pick up the entire device. However, since the original design intention of the damping hinge is to provide friction for static support rather than resist multi-directional swaying and centrifugal force during dynamic carrying, the limited frictional damping cannot effectively suppress the swaying of the screen body caused by the shift of the center of gravity, which in turn causes the screen to sway back and forth during walking. This not only affects the stability of holding the device, but may also accelerate the wear of the hinge and reduce the reliability of the structure in the long run.

[0005] Therefore, a portable display unit for wireless screen projection is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A portable display device for wireless screen projection, comprising: a display component, including a screen and a back plate disposed on the back of the screen; a support component, including a bracket rotatably disposed on the outside of the back plate via a damping shaft; a limiting component, including a baffle fixedly disposed on the back of the screen, the surface of the baffle having a groove adapted to the outer contour of the bracket, and a locking pin connected to the inside by a spring, the locking pin and the groove being through-hole disposed; and a slot being formed on the outer wall of the bracket that mates with the outer contour of the locking pin.

[0008] Preferably, the limiting component further includes: the baffle is U-shaped and has grooves and locking pins symmetrically provided on both sides; the bracket is M-shaped.

[0009] Preferably, the limiting component further includes a rotating shaft rotatably mounted on the baffle, the rotating shaft and the baffle being connected by a coil spring, and a steel cable being fixed between the rotating shaft and a pair of locking pins.

[0010] Preferably, the limiting component further includes a fixing groove formed on the rotating shaft; a steel ball is connected inside the baffle by a spring.

[0011] Preferably, the limiting component further includes a friction part disposed on the outer wall of the shaft to increase the roughness of the outer wall of the shaft.

[0012] Preferably, the outer wall of the bracket is symmetrically threaded with screws to improve the levelness of the screen when it is placed.

[0013] Preferably, a level bubble is fixedly provided on the back of the screen to determine the levelness of the screen when it is placed.

[0014] Preferably, the outer wall of the screen is provided with a plurality of fluorescent strips.

[0015] The advantages of this invention are: 1. The portable display unit for wireless screen projection described in this invention, by setting a locking pin, allows the screen to be engaged with the stand when carried, thereby converting the stand into a fixed assembly and improving the stability of the user holding the stand to carry the screen.

[0016] 2. The portable display unit for wireless screen projection described in this invention allows the user to rotate the shaft to wind up the steel cables on both sides. The baffle may be equipped with guide wheels to guide the force applied by the steel cables to the locking pins, driving the steel cables to apply a downward pulling force to the locking pins, so that the locking pins retract into the baffle and release from the engagement with the bracket. This setting makes it convenient for the user to manually unlock a pair of locking pins. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main body of the present invention; Figure 2 This is a schematic diagram of the back plate structure in this invention; Figure 3 This is a schematic diagram of the support structure in this invention; Figure 4 This is a schematic diagram of the baffle structure in this invention; Figure 5 This is a schematic diagram of the rotating shaft in this invention.

[0019] In the diagram: 1. Screen; 12. Backplate; 13. Bracket; 14. Baffle; 15. Pin; 3. Shaft; 32. Steel cable; 4. Fixing groove; 42. Steel ball; 5. Friction part; 6. Screw; 7. Horizontal bubble; 8. Fluorescent strip. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Specific implementation examples are given below.

[0022] Please see Figures 1 to 5 As shown in the embodiment of the present invention, a portable display device for wireless screen projection includes: a display component, including a screen 1 and a back plate 12 disposed on the back of the screen 1; a support component, including a bracket 13 rotatably disposed outside the back plate 12 via a damping pivot; and a limiting component, including a baffle 14 fixedly disposed on the back of the screen 1, the surface of the baffle 14 having a groove adapted to the outer contour of the bracket 13, and a locking pin 15 connected to the inside by a spring, the locking pin 15 being through the groove; and a slot on the outer wall of the bracket 13 engaging with the outer contour of the locking pin 15. When carrying, the user can carry and move the screen 1 by holding the bracket 13. During the process, the bracket 13 can be inserted into the groove on the baffle 14. The locking pin 15 in the baffle 14 can be locked into the slot on the bracket 13 under the action of the spring pre-compression force. In this way, the bracket 13 can be rigidly locked to the baffle 14 by the locking pin 15, and the bracket 13 can be converted from a rotating joint to a fixed joint. This can also improve the stability and convenience of the screen 1 when carrying and transporting. By setting the locking pin 15, the screen 1 can be locked to the bracket 13 by the locking pin 15 when carrying, so that the bracket 13 can be converted into a fixed joint, thereby improving the stability of the user holding the bracket 13 to carry the screen 1.

[0023] Please see Figure 3 As shown, the limiting component also includes: the baffle 14 is U-shaped and has grooves and locking pins 15 symmetrically arranged on both sides; the bracket 13 is M-shaped. The bracket 13 is M-shaped, with the protruding parts on both sides able to snap into the grooves on the baffle 14, while the recessed part in the middle is the user's hand area. This allows the user to hold the bracket 13 in a balanced state on both sides, making it easy for the user to carry the screen 1 using the bracket 13. In addition, the protruding parts on both sides of the bracket 13 can be engaged with a pair of latches 15 on the baffle 14, which can further improve the stability of the bracket 13 when it is a fixed pair.

[0024] Please see Figure 4 and Figure 5 As shown, the limiting assembly also includes a rotating shaft 3 rotatably mounted on the baffle 14, the rotating shaft 3 and the baffle 14 being connected by a coil spring, and a steel cable 32 being fixed between the rotating shaft 3 and a pair of locking pins 15; When projecting, the user can rotate the pivot 3 to wind the steel cables 32 on both sides. The baffle 14 can be equipped with guide wheels to guide the force applied by the steel cables 32 to the locking pins 15, driving the steel cables 32 to apply a downward pulling force to the locking pins 15, so that the locking pins 15 retract into the baffle 14 and release from the engagement with the bracket 13. This setting makes it easy for the user to manually unlock the pair of locking pins 15, rather than forcefully deflecting the bracket 13 to overcome the engagement resistance between the bracket 13 and the locking pins 15. After the bracket 13 is released from the engagement with the locking pins 15, it can return to a rotating pair. Finally, it can be rotated to the required position to support the screen 1.

[0025] Please see Figure 5 As shown, the limiting component also includes a fixing groove 4 formed on the rotating shaft 3; a steel ball 42 is connected inside the baffle 14 by a spring; When carried, there is a certain angle difference between the fixing groove 4 and the steel ball 42. When projecting, the user can rotate the shaft 3 to wind the steel cable 32. During the process, the fixing groove 4 can move closer to the steel ball 42. When the locking pin 15 is retracted into the baffle 14 under the tension of the steel cable 32, that is, when the locking pin 15 is disengaged from the bracket 13, the steel ball 42 can be embedded into the fixing groove 4 under the action of the pre-compressed spring. This can lock the shaft 3. The user can judge by the change in resistance by touch that the bracket 13 and the locking pin 15 are disengaged at this time.

[0026] Please see Figure 5 As shown, the limiting assembly also includes a friction part 5 disposed on the outer wall of the rotating shaft 3, which is used to increase the roughness of the outer wall of the rotating shaft 3; The friction part 5 provided on the surface of the rotating shaft 3 can increase the surface roughness of the rotating shaft 3. Specifically, a rubber layer can be polymerized on the outer wall of the rotating shaft 3, or a knurled surface can be provided, so that the user can rotate the rotating shaft 3 and apply torque to it.

[0027] Please see Figure 2 and Figure 3 As shown, the outer wall of the bracket 13 is symmetrically threaded with screws 6, which are used to improve the levelness of the screen 1 when it is placed. When projecting, the screen 1 can be placed on a table or other flat surface using the stand 13. If the surface is uneven, the user can rotate the corresponding screw 6 to adapt to the unevenness of the placement point, thereby improving the levelness of the screen 1 when it is placed.

[0028] Please see Figure 3 As shown, a horizontal bubble 7 is fixedly provided on the back of the screen 1 to determine the levelness of the screen 1 when it is placed. When projecting, after the user supports the screen 1 with the bracket 13, they can observe the centering of the bubble on the horizontal bubble 7 to determine the levelness of the screen 1 when it is placed, and then select the screw 6 that needs to be adjusted and rotate it accordingly.

[0029] Please see Figure 1 and Figure 2 As shown, the outer wall of the screen 1 is provided with several fluorescent strips 8. When screen 1 is placed in a low-light environment, users can quickly find screen 1 by looking for the fluorescent strip 8 on the outer wall of screen 1 and by the fluorescence emitted by the fluorescent strip 8 itself. Specifically, the fluorescent strip 8 can be made of energy-storing phosphorescent powder, which can absorb and store light energy during the day and emit light in the dark.

[0030] Working principle: When carrying, the user can carry and move the screen 1 by holding the bracket 13. During the process, the bracket 13 can be inserted into the groove on the baffle 14. The locking pin 15 in the baffle 14 can be locked into the slot on the bracket 13 under the action of the spring pre-compression force. In this way, the bracket 13 can be rigidly locked to the baffle 14 through the locking pin 15, and the bracket 13 can be converted from a rotating joint to a fixed joint. This can also improve the stability and convenience of the screen 1 when carrying and transporting. The bracket 13 is M-shaped, with the protruding parts on both sides able to be inserted into the grooves on the baffle 14, while the recessed part in the middle is the user's hand area. This allows the user to hold the bracket 13 in a balanced state on both sides, making it easy for the user to carry the screen 1 using the bracket 13. In addition, the protruding parts on both sides of the bracket 13 can be engaged with a pair of latches 15 on the baffle 14, which can further improve the stability of the bracket 13 when it is a fixed pair. When projecting, the user can rotate the pivot 3 to wind the steel cables 32 on both sides. The baffle 14 can be equipped with guide wheels to guide the force applied by the steel cables 32 to the locking pins 15, driving the steel cables 32 to apply a downward pulling force to the locking pins 15, so that the locking pins 15 retract into the baffle 14 and release the locking with the bracket 13. This setting makes it easy for the user to manually unlock the pair of locking pins 15, rather than forcefully deflecting the bracket 13 to overcome the locking resistance between the bracket 13 and the locking pins 15. After the bracket 13 releases the locking with the locking pins 15, it can return to a rotating pair. Finally, it can be rotated to the required position to support the screen 1. When carried, there is a certain angle difference between the fixing groove 4 and the steel ball 42. When projecting, the user can rotate the shaft 3 to wind the steel cable 32. During the process, the fixing groove 4 can move closer to the steel ball 42. When the locking pin 15 is retracted into the baffle 14 under the tension of the steel cable 32, that is, when the locking pin 15 is disengaged from the bracket 13, the steel ball 42 can be embedded into the fixing groove 4 under the action of the pre-compressed spring. In this way, the shaft 3 can be locked. The user can judge by the change in resistance by touch that the bracket 13 and the locking pin 15 are disengaged at this time. The surface roughness of the rotating shaft 3 can be increased by the friction part 5 provided on the surface. Specifically, a rubber layer can be polymerized on the outer wall of the rotating shaft 3, or a knurled surface can be provided, so that the user can rotate the rotating shaft 3 and apply torque to it. When projecting, the screen 1 can be placed on a table or other flat surface using the stand 13. When the surface is uneven, the user can rotate the corresponding screw 6 to adapt to the unevenness of the placement point, thereby improving the levelness of the screen 1 when it is placed. When projecting, after the user supports the screen 1 with the bracket 13, they can observe the centering of the bubble on the horizontal bubble 7 to determine the levelness of the screen 1 when it is placed, and then select the screw 6 that needs to be adjusted and rotate it accordingly. When screen 1 is placed in a low-light environment, users can quickly locate screen 1 by looking for the fluorescent strip 8 on the outer wall of screen 1 and observing the fluorescence emitted by the fluorescent strip 8 itself. Specifically, the fluorescent strip 8 can be made of energy-storing luminescent powder, which can absorb and store light energy during the day and emit light in the dark. The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A portable display unit for wireless screen projection, characterized in that: include: The display components include a screen (1) and a back panel (12) disposed on the back of the screen (1). The support assembly includes a bracket (13) that is rotatably mounted on the outside of the back plate (12) via a damping pivot. The limiting component includes a baffle (14) fixedly installed on the back of the screen (1). The surface of the baffle (14) is provided with a groove that matches the outer contour of the bracket (13), and a locking pin (15) is connected inside by a spring. The locking pin (15) and the groove are connected through each other. The outer wall of the bracket (13) is provided with a slot that matches the outer contour of the locking pin (15).

2. The portable display unit for wireless screen projection according to claim 1, characterized in that: The limiting component also includes: the baffle (14) is U-shaped and has grooves and locking pins (15) symmetrically arranged on both sides; the bracket (13) is M-shaped.

3. A portable display unit for wireless screen projection according to claim 2, characterized in that: The limiting assembly also includes a rotating shaft (3) rotatably mounted on a baffle (14), the rotating shaft (3) and the baffle (14) being connected by a coil spring, and a steel cable (32) being fixed between the rotating shaft (3) and a pair of locking pins (15).

4. A portable display unit for wireless screen projection according to claim 3, characterized in that: The limiting component also includes a fixing groove (4) opened on the rotating shaft (3); the baffle (14) is connected to a steel ball (42) by a spring.

5. A portable display unit for wireless screen projection according to claim 3, characterized in that: The limiting component also includes a friction part (5) disposed on the outer wall of the rotating shaft (3) to increase the roughness of the outer wall of the rotating shaft (3).

6. A portable display device for wireless screen projection according to claim 1, characterized in that: The bracket (13) has a screw (6) symmetrically threaded on its outer wall to improve the levelness of the screen (1) when it is placed.

7. A portable display unit for wireless screen projection according to claim 6, characterized in that: A horizontal bubble (7) is fixedly provided on the back of the screen (1) to determine the levelness of the screen (1) when it is placed.

8. A portable display unit for wireless screen projection according to claim 6, characterized in that: The outer wall of the screen (1) is provided with several fluorescent strips (8).

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