Projection display device convenient for head-mounted mobile phone

Abstract

The utility model discloses a convenient head-mounted mobile phone projection display device, which relates to the technical field of projection display devices, and comprises a main body, the upper side of the main body is rotatably connected with a cover plate, the rear side of the main body is fixedly connected with two rubber eyeshades, and the left and right sides of the main body are fixedly connected with connecting blocks. A connecting belt is fixedly connected to the side, away from the main body, of the connecting block, a winding mechanism is slidably connected to the end, away from the main body, of the connecting belt in a penetrating mode, and a head supporting block is arranged on the front side of the winding mechanism. Through mutual cooperation of the round block, the second knob, the fluted disc, the rotating shaft, the rotating disc, the worm, the worm gear, the connecting rod and the gear, the length of the connecting belt can be adjusted, the adjustable connecting belt can adapt to head sizes and shapes of different users, it is ensured that each user can find the most suitable wearing position, and the user experience is improved. Due to the personalized fitting degree, the discomfort, such as oppression or pain, possibly caused by long-time wearing is reduced.

Description

Technical Field

[0001] This utility model relates to the field of projection display device technology, and specifically to a projection display device for head-mounted mobile phones. Background Technology

[0002] The head-mounted mobile phone projection display device is an innovative product that combines modern technology with portability. It uses the mobile phone screen as a display source and projects images into the user's eyes through a specific optical system, thus providing an immersive viewing experience. This design allows users to enjoy a large-screen viewing experience while maintaining a natural head posture.

[0003] The existing technology has the following problems:

[0004] During use, the existing device does not allow for adjustment of the connecting strap length. Users cannot adjust the strap length according to different head sizes, wearing habits, or usage environments. This may lead to discomfort or incorrect wearing in certain situations. If the connecting strap is too long or too short, it may cause instability in the position of the projection display device, thereby affecting the stability and clarity of the projected image. Especially during movement or head movements, unstable wearing may cause image shaking or blurring, reducing viewing quality. Furthermore, the existing device cannot securely hold the phone in place. Without proper securing, the phone is prone to shaking or shifting of the projected image due to movement, affecting the stability and comfort of the user's viewing. During movement or activities, an unsecured phone may fall, potentially causing equipment damage or personal injury. Utility Model Content

[0005] This invention provides a convenient head-mounted mobile phone projection display device to solve the problems existing in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A head-mounted mobile phone projection display device includes a main body, a cover plate rotatably connected to the upper side of the main body, two rubber eye masks fixedly connected to the rear side of the main body, connecting blocks fixedly connected to both the left and right sides of the main body, a connecting strap fixedly connected to the side of the connecting block away from the main body, a winding mechanism slidably connected to the end of the connecting strap away from the main body, and a head support block provided on the front side of the winding mechanism.

[0008] A further improvement of this utility model is that the winding mechanism includes a circular block, a second knob is rotatably connected to the rear side of the circular block, a worm gear is fixedly connected to the front side of the second knob, a worm wheel is meshed with the outer wall of the worm gear, a connecting rod is fixedly connected through the lower side of the worm wheel, a gear is fixedly connected to the lower end of the connecting rod, two gear discs are meshed with the outer wall of the gear, a rotating shaft is fixedly connected through the upper side of the gear discs, the outer wall of the rotating shaft is fixedly connected to the connecting belt, and a turntable is fixedly connected to the outer wall of the rotating shaft.

[0009] A further improvement of this utility model is that the upper end of the connecting rod is rotatably connected to the circular block, and both the upper and lower ends of the rotating shaft are rotatably connected to the circular block.

[0010] A further improvement of this utility model is that: a fixing block is fixedly connected to the lower inner wall of the main body; a first knob is rotatably connected to the front side of the main body; a clamping plate is slidably connected to the inner wall of the main body; sliders are fixedly connected to both the left and right sides of the clamping plate; two limiting posts are fixedly connected to the lower side of the clamping plate; a limiting groove is opened on the rear side of the inner wall of the main body; sliding grooves are opened on both the left and right sides of the inner wall of the main body; two fixing plates are fixedly connected to the rear side of the clamping plate; rotating plates are rotatably connected to the opposite surfaces of the two fixing plates; a snap-fit ​​block is rotatably connected to the other end of the rotating plate; and the outer wall of the slider is slidably connected to the sliding groove.

[0011] A further improvement of this utility model is that: a threaded rod is fixedly connected to the rear side of the first knob, a movable block is threadedly connected to the outer wall of the threaded rod, a limit rod is fixedly connected to the rear side of the fixed block, the outer wall of the limit rod is slidably connected to the movable block, connecting plates are rotatably connected to both the left and right sides of the movable block, a movable block is rotatably connected to the other end of the connecting plate, an inclined groove is opened on the upper side of the movable block, and the outer wall of the limit post is slidably connected to the inclined groove.

[0012] A further improvement of the present invention is that: a limiting block is fixedly connected to the rear side of the snap-fit ​​block, the outer wall of the limiting block is slidably connected to the limiting groove, a telescopic block is slidably connected through the side of the snap-fit ​​block near the first knob, and two guide posts are slidably connected through the side of the telescopic block away from the first knob, and springs are sleeved on the outer wall of the guide posts.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a convenient head-mounted mobile phone projection display device. Through the interaction of a circular block, a second knob, a gear plate, a rotating shaft, a turntable, a worm gear, a worm wheel, a connecting rod, and gears, the length of the connecting strap can be adjusted. The adjustable connecting strap can adapt to different users' head sizes and shapes, ensuring that each user can find the most suitable wearing position. This personalized fit reduces the discomfort that may be caused by wearing for a long time, such as pressure or pain.

[0015] 2. This utility model provides a convenient head-mounted mobile phone projection display device. Through the cooperation of a first knob, threaded rod, moving block, limiting groove, limiting rod, connecting plate, movable block, inclined groove and fixed plate, the mobile phone can be fixed in place. When the mobile phone is firmly fixed on the projection display device, the shaking or offset of the projected image caused by the movement of the mobile phone can be effectively reduced. The stable position of the mobile phone also means that the user can turn their head more freely without worrying about the projected image being affected, thereby improving the overall user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the winding structure of this utility model;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This is a partial internal structural diagram of the present invention;

[0020] Figure 5 This is a schematic diagram of the important structure of this utility model;

[0021] Figure 6 This is a partial structural cross-sectional schematic diagram of the present invention.

[0022] In the diagram: 1. Main body; 2. Rubber goggles; 3. Cover plate; 4. Connecting block; 5. Connecting belt; 6. Rewinding mechanism; 7. Head support block; 8. Slide groove; 9. Clamping plate; 10. Limiting post; 11. Slider; 12. Fixing block; 13. First knob; 14. Threaded rod; 15. Moving block; 16. Limiting groove; 17. Limiting rod; 18. Connecting plate; 19. Movable block; 20. Inclined groove; 21. Fixing plate; 22. Rotating plate; 23. Snap-fit ​​block; 24. Limiting block; 25. Telescopic block; 26. Guide post; 27. Spring; 61. Round block; 62. Second knob; 63. Gear plate; 64. Rotating shaft; 65. Turntable; 66. Worm gear; 67. Worm wheel; 68. Connecting rod; 69. Gear. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0024] like Figure 1 As shown, this utility model provides a convenient head-mounted mobile phone projection display device, including a main body 1. A cover plate 3 is rotatably connected to the upper side of the main body 1. Two rubber eye masks 2 are fixedly connected to the rear side of the main body 1. Connecting blocks 4 are fixedly connected to both the left and right sides of the main body 1. A connecting strap 5 is fixedly connected to the side of the connecting block 4 away from the main body 1. A winding mechanism 6 is slidably connected to the end of the connecting strap 5 away from the main body 1. A head support block 7 is provided on the front side of the winding mechanism 6. In the process of using the device, the cover plate 3 can be opened first, the mobile phone can be placed inside the main body 1, and then the device can be worn on the user's head. Then, the length of the connecting strap 5 can be adjusted by the winding mechanism 6 so that the user's eyes can fit in close contact with the rubber eye masks 2, and the mobile phone display screen can be clearly seen through the rubber eye masks 2.

[0025] like Figure 2-3 As shown, this utility model provides a technical solution: Preferably, the winding mechanism 6 includes a circular block 61, a second knob 62 rotatably connected to the rear side of the circular block 61, a worm gear 66 fixedly connected to the front side of the second knob 62, a worm wheel 67 meshing with the outer wall of the worm gear 66, a connecting rod 68 through and fixedly connected to the lower side of the worm wheel 67, a gear 69 fixedly connected to the lower end of the connecting rod 68, two gear discs 63 meshing with the outer wall of the gear 69, a rotating shaft 64 through and fixedly connected to the upper side of the gear discs 63, a connecting belt 5 fixedly connected to the outer wall of the rotating shaft 64, a turntable 65 fixedly connected to the outer wall of the rotating shaft 64, the upper end of the connecting rod 68 rotatably connected to the circular block 61, and both the upper and lower ends of the rotating shaft 64 rotatably connected to the circular block 61. When adjusting the length of the connecting strap 5, the second knob 62 can be turned first. The second knob 62 can drive the worm gear 66 to rotate. When the worm gear 66 rotates, it can drive the worm wheel 67 to rotate. The rotation of the worm wheel 67 can drive the gear 69 to rotate through the connecting rod 68, thereby driving the two gear discs 63 to rotate simultaneously. When the gear discs 63 rotate, they can drive the rotating shaft 64 to rotate. The rotation of the rotating shaft 64 can wind up the connecting strap 5. If the second knob 62 is turned in the opposite direction, the rotating shaft 64 can be turned in the opposite direction to loosen the connecting strap 5. The adjustable connecting strap 5 can adapt to the head size and shape of different users, ensuring that each user can find the most suitable wearing position.

[0026] like Figure 4As shown, this utility model provides a technical solution: Preferably, a fixing block 12 is fixedly connected to the lower side of the inner wall of the main body 1, a first knob 13 is rotatably connected to the front side of the main body 1, a clamping plate 9 is slidably connected to the inner wall of the main body 1, sliders 11 are fixedly connected to both the left and right sides of the clamping plate 9, two limiting posts 10 are fixedly connected to the lower side of the clamping plate 9, a limiting groove 16 is opened on the rear side of the inner wall of the main body 1, sliding grooves 8 are opened on both the left and right sides of the inner wall of the main body 1, and two fixing plates 21 are fixedly connected to the rear side of the clamping plate 9. A rotating plate 22 is rotatably connected to each side, and a locking block 23 is rotatably connected to the other end of the rotating plate 22. The outer wall of the slider 11 is slidably connected to the slide groove 8. When clamping and limiting the mobile phone, the first knob 13 can be rotated first. The rotation of the first knob 13 can drive the clamping plate 9 to move through the internal structure of the fixing block 12. When the clamping plate 9 moves, it can drive the fixing plate 21 to move. The movement of the fixing plate 21 will drive the rotating plate 22 to rotate, thereby driving the locking block 23 to move, so that the mobile phone can be clamped from left to right.

[0027] like Figure 5-6 As shown, this utility model provides a technical solution: Preferably, a threaded rod 14 is fixedly connected to the rear side of the first knob 13, and a movable block 15 is threadedly connected to the outer wall of the threaded rod 14. A limiting rod 17 is fixedly connected to the rear side of the fixed block 12, and the outer wall of the limiting rod 17 is slidably connected to the movable block 15. Connecting plates 18 are rotatably connected to both sides of the movable block 15, and a movable block 19 is rotatably connected to the other end of the connecting plate 18. A groove 20 is provided on the upper side of the movable block 19, and the outer wall of the limiting post 10 is slidably connected to the groove 20. A limiting block 24 is fixedly connected to the rear side of the locking block 23, and the outer wall of the limiting block 24 is slidably connected to the limiting groove 16. A telescopic block 25 is slidably connected through the side of the locking block 23 near the first knob 13, and two guide posts 26 are slidably connected through the side of the telescopic block 25 away from the first knob 13. The wall sleeve is equipped with a spring 27. When the first knob 13 is turned, the first knob 13 can drive the threaded rod 14 to rotate. The rotation of the threaded rod 14 can drive the moving block 15 to move on the limiting rod 17. The movement of the moving block 15 can drive the connecting plates 18 on both sides to rotate, thereby driving the movable blocks 19 on both sides to move towards the middle or in the opposite direction at the same time. When the movable block 19 moves, the cooperation between the inclined groove 20 and the limiting post 10 can drive the clamping plate 9 to move back and forth to clamp the mobile phone. At the same time as the snap-fit ​​block 23 moves, it can also drive the telescopic block 25 to move. When the telescopic block 25 contacts the mobile phone, the clamping plate 9 can drive the snap-fit ​​block 23 to continue to move, making the mobile phone fit more tightly. The stable position of the mobile phone also means that the user can turn their head more freely without worrying about the projected image being affected.

[0028] The working principle of this head-mounted mobile phone projection display device will be explained in detail below.

[0029] like Figure 1-6 As shown, during the use of the device, the cover plate 3 can be opened first, and the mobile phone can be placed inside the main body 1. When clamping and limiting the mobile phone, the first knob 13 can be rotated first. When the first knob 13 is rotated, the first knob 13 can drive the threaded rod 14 to rotate. The rotation of the threaded rod 14 can drive the moving block 15 to move on the limiting rod 17. The movement of the moving block 15 can drive the connecting plates 18 on both sides to rotate, thereby driving the movable blocks 19 on both sides to move simultaneously to the middle or in opposite directions. When in motion, the cooperation between the inclined groove 20 and the limiting post 10 can drive the clamping plate 9 to move back and forth, clamping the mobile phone from side to side. As the clamping plate 9 moves, it can drive the fixing plate 21 to move, which in turn drives the rotating plate 22 to rotate, thereby driving the locking block 23 to move, thus clamping the mobile phone from side to side. Simultaneously, the locking block 23 can also drive the telescopic block 25 to move. When the telescopic block 25 contacts the mobile phone, the clamping plate 9 can drive the locking block 23 to continue moving, further clamping the mobile phone. A tighter fit and a stable phone position mean users can move their heads more freely without worrying about the projected image being affected. The device can then be worn on the user's head, and the length of the connecting strap 5 can be adjusted via the winding mechanism 6. To adjust the length of the connecting strap 5, the second knob 62 can be turned first. The second knob 62 drives the worm gear 66 to rotate, which in turn drives the worm wheel 67 to rotate. The rotation of the worm wheel 67 drives the gear 69 to rotate via the connecting rod 68, which in turn drives the two gear discs 63 to rotate simultaneously. The rotation of the gear discs 63 drives the rotating shaft 64 to rotate, which in turn winds up the connecting strap 5. Similarly, turning the second knob 62 in the opposite direction will cause the rotating shaft 64 to rotate in the opposite direction, loosening the connecting strap 5. The adjustable connecting strap 5 can adapt to different head sizes and shapes, ensuring that each user can find the most suitable wearing position. The user's eyes can fit snugly against the rubber eye mask 2, allowing them to clearly see the phone's display screen through the rubber eye mask 2.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A device for projecting displays onto a head-mounted mobile phone, characterized in that: Includes a main body (1), a cover plate (3) is rotatably connected to the upper side of the main body (1), two rubber goggles (2) are fixedly connected to the rear side of the main body (1), connecting blocks (4) are fixedly connected to both the left and right sides of the main body (1), a connecting strap (5) is fixedly connected to the side of the connecting block (4) away from the main body (1), a winding mechanism (6) is slidably connected to the end of the connecting strap (5) away from the main body (1), and a head support block (7) is provided on the front side of the winding mechanism (6).

2. The device for projecting a mobile phone onto a head-mounted display according to claim 1, characterized in that: The winding mechanism (6) includes a circular block (61), a second knob (62) is rotatably connected to the rear side of the circular block (61), a worm gear (66) is fixedly connected to the front side of the second knob (62), a worm wheel (67) is meshed with the outer wall of the worm gear (66), a connecting rod (68) is fixedly connected through the lower side of the worm wheel (67), a gear (69) is fixedly connected to the lower end of the connecting rod (68), two gear discs (63) are meshed with the outer wall of the gear (69), a rotating shaft (64) is fixedly connected through the upper side of the gear discs (63), the outer wall of the rotating shaft (64) is fixedly connected to the connecting belt (5), and a turntable (65) is fixedly connected to the outer wall of the rotating shaft (64).

3. The device for projecting a mobile phone onto a head-mounted display according to claim 2, characterized in that: The upper end of the connecting rod (68) is rotatably connected to the circular block (61), and both the upper and lower ends of the rotating shaft (64) are rotatably connected to the circular block (61).

4. The device for projecting a mobile phone onto a head-mounted display according to claim 1, characterized in that: A fixing block (12) is fixedly connected to the lower side of the inner wall of the main body (1). A first knob (13) is rotatably connected to the front side of the main body (1). A clamping plate (9) is slidably connected to the inner wall of the main body (1). A slider (11) is fixedly connected to both the left and right sides of the clamping plate (9). Two limiting posts (10) are fixedly connected to the lower side of the clamping plate (9). A limiting groove (16) is opened on the rear side of the inner wall of the main body (1). A sliding groove (8) is opened on both the left and right sides of the inner wall of the main body (1). Two fixing plates (21) are fixedly connected to the rear side of the clamping plate (9). A rotating plate (22) is rotatably connected to the opposite face of the two fixing plates (21). A snap-fit ​​block (23) is rotatably connected to the other end of the rotating plate (22). The outer wall of the slider (11) is slidably connected to the sliding groove (8).

5. A head-mounted mobile phone projection display device according to claim 4, characterized in that: A threaded rod (14) is fixedly connected to the rear side of the first knob (13). A movable block (15) is threadedly connected to the outer wall of the threaded rod (14). A limit rod (17) is fixedly connected to the rear side of the fixed block (12). The outer wall of the limit rod (17) is slidably connected to the movable block (15). A connecting plate (18) is rotatably connected to both the left and right sides of the movable block (15). A movable block (19) is rotatably connected to the other end of the connecting plate (18). A slanted groove (20) is opened on the upper side of the movable block (19). The outer wall of the limit post (10) is slidably connected to the slanted groove (20).

6. A head-mounted mobile phone projection display device according to claim 4, characterized in that: The back of the snap-fit ​​block (23) is fixedly connected to a limiting block (24). The outer wall of the limiting block (24) is slidably connected to the limiting groove (16). A telescopic block (25) is slidably connected through the snap-fit ​​block (23) on the side near the first knob (13). Two guide posts (26) are slidably connected through the side of the telescopic block (25) away from the first knob (13). A spring (27) is sleeved on the outer wall of the guide post (26).

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