A head-mounted display with multi-directional adjustable display position

Abstract

The utility model relates to a head mounted display of multi -directional adjustment display position, including the head -mounted display main part with near -eye display function and the forehead support subassembly for wearing, still include transmission connecting rod, transmission connecting rod one end and head -mounted display main part relative user face before and after sliding connection, other end and forehead support subassembly relative user face up and down sliding connection, forehead support subassembly includes first locking part, first locking part with transmission connecting rod cooperation, after head -mounted display main part relative user face moves up and down to target position, lock and limit, be provided with second locking part on head -mounted display main part, second locking part with transmission connecting rod cooperation, after head -mounted display main part relative user face moves before and after to target position, lock and limit. The head mounted display transmission connecting rod both ends and the sliding fit of head -mounted display main part and forehead support subassembly, realize the position adjustment of display position in relative user face's before and after and up and down direction, finally reach the purpose that display position multidirectional adjustment.

Description

Technical Field

[0001] This utility model relates to the field of head-mounted display technology, and more specifically, to a head-mounted display with multi-directional adjustable display position. Background Technology

[0002] Head-mounted displays, as wearable devices, are widely used in virtual reality (VR) and augmented reality (AR) scenarios. Individual differences in users' head shape, eye height, interpupillary distance, and other physiological characteristics place high demands on the adaptability of the devices. Existing technologies have made various attempts to improve the wearing comfort and visual alignment accuracy of head-mounted displays.

[0003] For example, Chinese patent CN209198764U discloses an adjustment mechanism and a head-mounted display using the same mechanism. The adjustment mechanism includes a base and a slide rail slidably mounted on the base. A rotating shaft is installed on one side of the slide rail, and a rotating shaft arm is rotatably mounted on the shaft. The head-mounted display and the display device are connected through this adjustment mechanism, enabling the display device to slide back and forth relative to the head-mounted display and to rotate around the rotating shaft. This allows users to interact with the external environment without removing the device, thus improving usability to some extent. However, the aforementioned adjustment mechanisms still have several problems: Due to significant differences in eye height among users, these mechanisms cannot adjust the height of the display device according to eye height, making it difficult to align the center of the display screen with the visual axis of the eye, easily resulting in visual deviations such as the screen appearing "too high" or "too low." Furthermore, their reliance on the damping effect of locking nuts and disc-shaped washers to suspend the hinge arm and maintain the position of the slide rail constitutes a passive locking structure. When the device is subjected to external impact or the user's head movements are significant, the slide rail may accidentally slide along the base groove, or the hinge arm may rotate unexpectedly around the axis, causing a shift in the relative position between the display device and the eyes, making it impossible to accurately control the distance between the eyes and the headset. In addition, current industry methods also include adjusting the Z and Y positions of the headset and eyes using a single hinge. However, when adjusting with a single hinge, the Z and Y positions of the headset change simultaneously, failing to accurately control the distance between the eyes and the headset, thus affecting the viewing experience. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a head-mounted display with multi-directional adjustable display position, in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A head-mounted display with multi-directional adjustable display position is constructed, including a head-mounted display body with near-eye display function and a forehead support assembly for wearing; it also includes a transmission link, one end of which is slidably connected to the head-mounted display body relative to the user's face back and forth, and the other end of which is slidably connected to the forehead support assembly relative to the user's face up and down; the forehead support assembly includes a first locking member, which cooperates with the transmission link to lock and limit the head-mounted display body after it moves up and down relative to the user's face to a target position; the head-mounted display body is provided with a second locking member, which cooperates with the transmission link to lock and limit the head-mounted display body after it moves back and forth relative to the user's face to a target position.

[0007] As an improvement to the head-mounted display with multi-directional adjustable display position, the transmission linkage includes a rod connected to the forehead support assembly and a movable part connected to the head-mounted display body. The movable part is rotatably connected to the rod, allowing the head-mounted display body to be rotated upward to open or downward to the use position.

[0008] As an improvement to the head-mounted display with multi-directional adjustable display position, the forehead support assembly includes a forehead support body, a slide rail disposed on the forehead support body, and a movable seat slidably connected to the slide rail. A first locking member is disposed between the movable seat and the slide rail to lock the position of the movable seat on the slide rail.

[0009] As an improvement to the head-mounted display with multi-directional adjustable display position, the first locking member includes a mounting shell connected to the movable base. A limiting block is slidably installed inside the mounting shell. A reset member is provided between the limiting block and the mounting shell. The limiting block has an opening on one side facing the slide rail. The slide rail has multiple protrusions along its length. The protrusions can be inserted into the opening to achieve a snap-locking action. The movable base is also provided with a button. By pressing the button, the limiting block can be driven to slide and separate from the corresponding protrusions to release the locking state.

[0010] As an improvement to the head-mounted display with multi-directional adjustable display position, the limiting block has a through hole, the mounting shell has a strip groove along the sliding direction of the limiting block, a pin passes through the through hole, and the end of the pin passes through the strip groove and cooperates with the inclined block provided on the button.

[0011] As an improvement to the head-mounted display with multi-directional adjustable display position, a portion of the outer surface of the forehead support body protrudes outward to form an extension, and a mounting groove for mounting the slide rail is formed on the side of the extension away from the forehead support body.

[0012] As an improvement to the head-mounted display with multi-directional adjustable display position, the movable base is also connected to a forehead support. The forehead support has a groove in the area corresponding to the extension. After installation, the forehead support abuts against the extension through the groove.

[0013] As an improvement to the head-mounted display with multi-directional adjustable display position, the head-mounted display body includes a display body and a fixed frame for mounting the display body. The fixed frame is provided with a guide rail, and the transmission link is slidably connected to the guide rail. The second locking member is provided on the fixed frame to lock the position of the transmission link on the guide rail.

[0014] As an improvement to the head-mounted display with multi-directional adjustable display position, the second locking member includes a locking block that can move along a direction perpendicular to the guide rail path. An elastic element is provided between the locking block and the fixed frame. Multiple positioning slots are opened at the bottom of the movable part. The fixed frame is also provided with a button that cooperates with the locking block. By pressing the button, the locking block can be driven to slide and move out of the corresponding positioning slot above to release the locking state.

[0015] As an improvement to the head-mounted display with multi-directional adjustable display position, the locking block is provided with a first inclined surface that cooperates with the button, and when the button is moved, the locking block is pushed down by the first inclined surface.

[0016] The beneficial effects of this utility model are as follows: This head-mounted display achieves positional adjustment relative to the user's face in both the front-back and vertical directions through the sliding cooperation between the two ends of the transmission linkage and the main body of the head-mounted display and the forehead support assembly. When the main body of the head-mounted display moves vertically to the user's desired target position, that is, aligned with the user's eye level, it can be locked and limited by the first locking member on the forehead support assembly, preventing relative sliding between the transmission linkage and the forehead support assembly, thus fixing the vertical position of the main body of the head-mounted display. When the main body of the head-mounted display moves forward and backward to the target position, it is locked and limited by the second locking member on the main body of the head-mounted display in cooperation with the transmission linkage, preventing relative sliding between the transmission linkage and the main body of the head-mounted display, thus fixing the front-back position of the main body of the head-mounted display. This improves the adaptability of use. The two-way adjustment of the head-mounted display in both the front-back and vertical directions can adapt to the differences in head shape and eye height of different users. Users can adjust the main body of the head-mounted display to a position aligned with their eyes and with a comfortable eye-screen distance according to their own physiological characteristics, avoiding problems such as the screen being too high or too low or causing a feeling of pressure when viewing, which are caused by insufficient adaptability of traditional devices. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of the head-mounted display provided by this utility model;

[0019] Figure 2 This is the second three-dimensional structural schematic diagram of the head-mounted display provided by this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the display position of this utility model, which slides up to the top position in the vertical direction and slides to the position closest to the human eye in the front-back direction.

[0021] Figure 4 This is a three-dimensional structural diagram of the display position of this utility model, which slides down to the lowest position in the vertical direction and slides forward and backward to the position furthest from the human eye.

[0022] Figure 5 This is one of the exploded views of the head-mounted display provided by this utility model;

[0023] Figure 6 This is the second exploded view of the head-mounted display provided by this utility model;

[0024] Figure 7 This is a three-dimensional structural diagram of the forehead support component and the main body of the head-mounted display provided by this utility model;

[0025] Figure 8 This is one of the exploded views of the forehead support assembly of the head-mounted display provided by this utility model;

[0026] Figure 9 This is the second exploded view of the forehead support assembly of the head-mounted display provided by this utility model;

[0027] Figure 10 This is a three-dimensional structural diagram of the first locking member of the head-mounted display provided by this utility model;

[0028] Figure 11 This is an exploded view of the head-mounted display body provided by this utility model.

[0029] In the diagram: 1. Forehead support assembly; 11. Forehead support body; 111. Extension; 112. Mounting groove; 12. Slide rail; 13. Movable seat; 14. First locking element; 141. Mounting shell; 1411. Strip groove; 142. Limiting block; 1421. Opening; 1422. Through hole; 143. Reset element; 144. Protrusion; 145. Button; 1451. Inclined block; 146. Pin; 15. Forehead support component; 151. Groove; 2. Head-mounted display body; 21. Display body; 22. Fixing frame; 23. Guide rail; 24. Second locking element; 241. Locking block; 2411. First inclined surface; 242. Elastic element; 243. Button; 3. Transmission linkage; 31. Rod body; 32. Movable part; 33. Rotating shaft. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] A head-mounted display with multi-directional adjustable display position, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the device includes a head-mounted display body 2 with near-eye display function and a forehead support assembly 1 for wearing; it also includes a transmission link 3, one end of which is slidably connected to the head-mounted display body 2 relative to the user's face, and the other end is slidably connected to the forehead support assembly 1 relative to the user's face; the forehead support assembly 1 includes a first locking member 14, which cooperates with the transmission link 3 and locks and limits the head-mounted display body 2 after it moves up and down relative to the user's face to the target position; a second locking member 24 is provided on the head-mounted display body 2, which cooperates with the transmission link 3 and locks and limits the head-mounted display body 2 after it moves up and down relative to the user's face to the target position.

[0032] Specifically, the head-mounted display (HMD) body 2 and the forehead support assembly 1 are connected by a transmission link 3. One end of the transmission link 3 is slidably connected to the HMD body 2, allowing the HMD body 2 to move linearly relative to the user's face in the front-back direction. The other end is slidably connected to the forehead support assembly 1, allowing the HMD body 2 to move linearly relative to the user's face in the up-down direction, thus enabling independent linear adjustment of the HMD body 2 in both the front-back and up-down directions. When the HMD body 2 moves vertically to the target position desired by the user, i.e., aligned with the user's eye level, it can be locked and limited by the first locking member 14 on the forehead support assembly 1, preventing relative sliding between the transmission link 3 and the forehead support assembly 1, and fixing the vertical position of the HMD body 2. When the HMD body 2 moves vertically to the target position, it is locked and limited by the second locking member 24 on the HMD body 2 in cooperation with the transmission link 3, preventing relative sliding between the transmission link 3 and the HMD body 2, and fixing the front-back position of the HMD body 2. The headset 2 features bidirectional adjustment in both forward / backward and up / down directions to accommodate different head shapes and eye heights. Users can precisely adjust the headset 2 to a position aligned with their eyes and with a comfortable distance between their eyes and the screen, avoiding issues such as the image being too high or too low, or a feeling of pressure, caused by insufficient adaptation in traditional devices. This independent adjustment in two directions avoids the inconvenience and limited adjustment range of traditional methods, improving ease of use and adaptability, especially suitable for scenarios requiring prolonged wear.

[0033] In some embodiments of this application, the transmission link 3 includes a rod 31 connected to the forehead support assembly 1 and a movable part 32 connected to the head-mounted display body 2. The movable part 32 is rotatably connected to the rod 31, allowing the head-mounted display body 2 to rotate upwards to open or downwards to a usable position. Specifically, the transmission link 3 is connected to the forehead support assembly 1 via the rod 31 and to the head-mounted display body 2 via the movable part 32, with a rotatable connection between the movable part 32 and the rod 31. When the user applies external force to the head-mounted display body 2, the movable part 32 connected to the head-mounted display body 2 rotates around its rotational connection point with the rod 31, thereby causing the head-mounted display body 2 to rotate synchronously: applying outward force causes the head-mounted display body 2 to rotate upwards with the movable part 32, thus moving it away from the user's eye area to achieve an open state; applying inward force causes the head-mounted display body 2 to rotate downwards with the movable part 32 until it returns to a usable position adapted to the user's eyes, completing the switch from the open to the usable state. Users do not need to remove the entire head-mounted display; they can switch between open and use modes simply by rotating the head-mounted display body 2. When users need to temporarily observe the external environment, they can quickly rotate the head-mounted display body 2 upwards to open it, avoiding the inconvenience of frequently removing and putting on the device.

[0034] Furthermore, the rod 31 is rotatably connected to the movable part 32 via the pivot 33, and a damping structure is provided between the pivot 33 and the movable part 32. Specifically, the damping structure between the pivot 33 and the movable part 32 functions when they rotate relative to each other. When the head-mounted display body 2 rotates upward or downward around the pivot 33 to a position suitable for the user's eyes, causing the pivot 33 to rotate relative to the movable part 32, the damping structure generates resistance that hinders the relative rotation of the pivot 33 and the movable part 32. This prevents the relative rotation of the pivot 33 and the movable part 32 from being in an unrestrained free state, but rather keeps it in a controlled rotation state. The resistance generated by the damping structure effectively slows down the relative rotation speed of the pivot 33 and the movable part 32, making the rotation process of the head-mounted display body 2 smoother and avoiding user inconvenience or accidental touches due to excessively fast or abrupt rotation. This allows the user to accurately adjust the head-mounted display body 2 to the required opening angle or usage position. Furthermore, this resistance can stably maintain the relative position of the rotating shaft 33 and the movable part 32 after the head-mounted display body 2 is rotated to the target position, preventing the head-mounted display body 2 from rotating and shifting due to its own weight or slight external interference, and ensuring that the head-mounted display body 2 will not sag arbitrarily when in the open state and will not shake when in the use position.

[0035] In some embodiments of this application, such as Figure 5 and Figure 6 As shown, the forehead support assembly 1 includes a forehead support body 11, a slide rail 12 disposed on the forehead support body 11, and a movable seat 13 slidably connected to the slide rail 12. A first locking member 14 is disposed between the movable seat 13 and the slide rail 12 to lock the position of the movable seat 13 on the slide rail 12. Specifically, in the forehead support assembly 1, the slide rail 12 is fixedly disposed on the forehead support body 11, and the movable seat 13 is slidably connected to the slide rail 12, so that the movable seat 13 can slide back and forth along the extension direction of the slide rail 12, thereby driving the structure related to the movable seat 13 to achieve position adjustment, namely the transmission link 3 and the head-mounted display body 2; the first locking member 14 is installed between the movable seat 13 and the slide rail 12. When the movable seat 13 slides along the slide rail 12 to the target position that meets the usage requirements, the first locking member 14 can be operated to restrict the relative sliding between the movable seat 13 and the slide rail 12, thereby stably locking the movable seat 13 in the current position on the slide rail 12 and preventing the movable seat 13 from being unexpectedly displaced in subsequent use. The sliding function of the movable seat 13 along the slide rail 12 allows users to adjust the position of the movable seat 13 according to their own forehead contours, wearing comfort preferences, etc., so that the forehead support component 1 can better fit the foreheads of different users and solve the problem of discomfort for some users caused by the fixed position of traditional forehead supports.

[0036] In some embodiments of this application, such as Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, the first locking member 14 includes a mounting shell 141 connected to the movable base 13. A limiting block 142 is slidably installed inside the mounting shell 141. A reset member 143 is provided between the limiting block 142 and the mounting shell 141. The limiting block 142 has an opening 1421 on the side facing the slide rail 12. The slide rail 12 has a plurality of protrusions 144 along its length. The protrusions 144 can be inserted into the opening 1421 to achieve a snap-lock. The movable base 13 is also provided with a button 145. By pressing the button 145, the limiting block 142 can be driven to slide and separate from the corresponding protrusions 144 to release the locked state. Specifically, the reset element 143 is a spring or elastic sheet. The mounting shell 141 is connected to the movable seat 13. The limiting block 142 inside the mounting shell 141 can slide along the mounting shell 141, and the reset element 143 between the limiting block 142 and the mounting shell 141 will exert a force on the limiting block 142 towards the slide rail 12. Multiple protrusions 144 arranged along the length of the slide rail 12 can be inserted into the opening 1421 of the limiting block 142 facing the slide rail 12. Through the snap-fit ​​cooperation between the protrusions 144 and the opening 1421, the sliding of the movable seat 13 along the slide rail 12 is restricted, thereby achieving position locking. When it is necessary to adjust the position of the movable seat 13, press the button 145 on the movable seat 13. The button 145 will drive the limiting block 142 to slide along the mounting shell 141, so that the opening 1421 of the limiting block 142 separates from the corresponding protrusion 144, thereby releasing the snap-fit ​​relationship and allowing the movable seat 13 to be adjusted along the slide rail 12. Users can quickly make adjustments with one hand, improving the ease of use of the device. Its multi-position locking capability allows for precise fine-tuning, while reliable mechanical interlocking ensures that the position is absolutely fixed in the locked state, effectively enhancing the stability and safety of the device during use. At the same time, the reset component 143 can push the limit block 142 to automatically reset after the button 145 is released, which facilitates subsequent locking through the engagement of the protrusion 144 and the opening 1421.

[0037] Furthermore, the number of protrusions 144 can be set to 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 or 16 as required.

[0038] In some embodiments of this application, the limiting block 142 has a through hole 1422, and the mounting shell 141 has a strip groove 1411 along the sliding direction of the limiting block 142. A pin 146 passes through the through hole 1422, and the end of the pin 146 passes through the strip groove 1411 and cooperates with the inclined block 1451 provided on the button 145. Specifically, the limiting block 142 has a through hole 1422, and the pin 146 passes through the through hole 1422. The end of the pin 146 not only passes through the strip groove 1411 on the mounting shell 141 along the sliding direction of the limiting block 142, but also cooperates with the inclined block 1451 provided on the button 145. When button 145 is pressed, button 145 will drive the inclined block 1451 to move synchronously. The inclined surface of the inclined block 1451 will generate a force through its cooperation with the pin 146 to push the pin 146 to move. Since the pin 146 is restricted by the slot 1411, it can only move along the extension direction of the slot 1411. Therefore, the pin 146 will drive the limit block 142 connected to it to move synchronously along the sliding direction inside the mounting shell 141, and finally realize the position adjustment of the limit block 142, providing a basis for subsequent locking or unlocking actions.

[0039] By cooperating with the inclined block 1451 and the pin 146, the pressing action of the button 145 can be transformed into the sliding action of the limit block 142, which effectively realizes the transmission of operating force and the conversion of action direction, ensuring that the unlocking operation can be completed by simply pressing the button 145, thus reducing the difficulty of operation.

[0040] In some embodiments of this application, such as Figure 5 As shown, the outer surface of the forehead support body 11 protrudes outward to form an extension 111. A mounting groove 112 for mounting the slide rail 12 is formed on the side of the extension 111 away from the forehead support body 11. Specifically, the forehead support body 11 forms the extension 111 through its outwardly protruding outer surface. This extension 111 serves as the mounting carrier for the slide rail 12, and a mounting groove 112 is specifically formed on the side away from the forehead support body 11. The structure of the mounting groove 112 is adapted to the slide rail 12, allowing the slide rail 12 to be stably assembled within it. Thus, the connection between the slide rail 12 and the forehead support body 11 is achieved through the mounting space provided by the extension 111 and the positioning function of the mounting groove 112. The protruding structure of the extension 111 can reasonably expand the installation space of the forehead support body 11, avoiding the space constraints that may be caused by directly installing the slide rail 12 on the forehead support body 11, making the assembly of the slide rail 12 easier; its mounting groove 112 can position the slide rail 12, ensuring the accuracy of the installation position of the slide rail 12, preventing the slide rail 12 from shifting during assembly or use, and ensuring the smoothness of the subsequent sliding adjustment of the moving seat 13 along the slide rail 12; at the same time, through the cooperation of the extension 111 and the mounting groove 112, the stability of the connection between the slide rail 12 and the forehead support body 11 can be enhanced, reducing the risk of the slide rail 12 loosening, thereby improving the reliability of the entire first adjustment component.

[0041] In some embodiments of this application, such as Figure 5 and Figure 6 As shown, a ballast support 15 is also connected to the movable base 13. The area of ​​the ballast support 15 corresponding to the extension 111 has a groove 151. After the ballast support 15 is installed, it abuts against the extension 111 through the groove 151. Specifically, the ballast support 15 is connected to the movable base 13, and the area of ​​the ballast support 15 corresponding to the extension 111 has a groove 151. After the ballast support 15 is installed, its groove 151 will abut against the extension 111. By wrapping and fitting the extension 111 with the groove 151, a stable contact relationship is established between the ballast support 15 and the extension 111. Thus, when the ballast support 15 moves along the slide rail 12 with the movable base 13, it can always maintain a relatively regular positional relationship with the extension 111 as a reference, avoiding the ballast support 15 from shifting or shaking during the movement. The corresponding fit between the groove 151 and the extension 111 can position the forehead support, simplifying the assembly process of the forehead support 15 and ensuring accurate alignment between the forehead support 15 and the extension 111 without additional adjustments.

[0042] In some embodiments of this application, such as Figure 5 , Figure 6 and Figure 11 As shown, the head-mounted display body 2 includes a display body 21 and a fixed frame 22 for mounting the display body 21. A guide rail 23 is provided on the fixed frame 22, and a transmission rod 3 is slidably connected to the guide rail 23. A second locking member 24 is disposed on the fixed frame 22 to lock the position of the transmission rod 3 on the guide rail 23. Specifically, the fixed frame 22 is used to mount the display body 21, and a guide rail 23 is provided on the fixed frame 22. The movable part 32 of the transmission rod 3 can slide along the guide rail 23. When the movable part 32 moves along the guide rail 23, it will drive the head-mounted display body to move synchronously in the front-back direction relative to the user's face through the transmission rod 3, realizing the front-back adjustment of the display position. When the movable part 32 moves to the suitable position, the sliding of the movable part 32 along the guide rail 23 can be restricted by operating the second locking member 24, thereby locking the movable part 32 in the current position of the guide rail 23 and ensuring that the display position remains stable. The sliding structure of the movable part 32 along the guide rail 23 enables the display body 21 to move smoothly in the front-back direction relative to the user's face. It can accurately adjust the front-back distance between the head-mounted display body and the eyes according to the user's head shape and eye distance, solving the problem of inconvenient adjustment in the prior art. The second locking member 24 can effectively lock the position of the movable part 32, preventing the movable part 32 from sliding or the display position from shifting due to external force or vibration during use, ensuring the stability of the viewing process and improving the visual experience.

[0043] In some embodiments of this application, such as Figure 11As shown, the second locking member 24 includes a locking block 241 that can move along a direction perpendicular to the track path of the guide rail 23. An elastic member 242 is provided between the locking block 241 and the fixed frame 22. The bottom of the movable part 32 has multiple positioning grooves. The fixed frame 22 is also provided with a button 243 that cooperates with the locking block 241. By pressing the button 243, the locking block 241 can be driven to slide and move out of the corresponding positioning groove above to release the locking state.

[0044] Specifically, the elastic element 242 is a spring or an elastic sheet, and the locking block 241 can move along a direction perpendicular to the track path of the guide rail 23. An elastic element 242 is provided between the locking block 241 and the fixed frame 22. Under normal conditions, the elastic element 242 exerts a force on the locking block 241, pushing it into the corresponding positioning groove at the bottom of the movable part 32. The cooperation between the locking block 241 and the positioning groove restricts the sliding of the movable part 32 along the guide rail 23, thereby locking the movable part 32 in position on the guide rail 23. When it is necessary to adjust the position of the movable part 32, pressing the button 243 on the fixed frame 22 that cooperates with the locking block 241 will drive the locking block 241 to move along a direction perpendicular to the track path of the guide rail 23, causing the locking block 241 to move out of the corresponding positioning groove above, thus releasing the restriction on the movable part 32 and allowing the movable part 32 to be adjusted along the guide rail 23.

[0045] In some embodiments of this application, the locking block 241 is provided with a first inclined surface 2411 that cooperates with the button 243. When the button 243 moves, it pushes the locking block 241 downward through the first inclined surface 2411. Specifically, the first inclined surface 2411 on the locking block 241 forms a cooperating structure with the button 243. When the button 243 moves, it comes into contact with the first inclined surface 2411 of the locking block 241. Since the first inclined surface 2411 has an inclination angle, the moving force of the button 243 is converted into a downward force pushing the locking block 241 vertically through the guiding effect of the first inclined surface 2411, thereby driving the locking block 241 to move downward. The operating force of the button 243 is smoothly converted into the downward force required by the locking block 241, avoiding problems such as jamming or uneven force during force transmission, and ensuring the smooth operation of the locking block 241.

[0046] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A head-mounted display with multi-directional adjustable display position, comprising a head-mounted display body with near-eye display function and a forehead support assembly for wearing; characterized in that, It also includes a transmission link, one end of which is slidably connected to the head-mounted display body relative to the user's face, and the other end is slidably connected to the forehead support assembly relative to the user's face. The forehead support assembly includes a first locking member, which cooperates with the transmission link to lock and limit the head-mounted display body relative to the user's face after it has moved up and down to the target position. The head-mounted display body is provided with a second locking member, which cooperates with the transmission link to lock and limit the head-mounted display body relative to the user's face after it has moved up and down to the target position.

2. The head-mounted display with multi-directional adjustable display position according to claim 1, characterized in that, The transmission linkage includes a rod body connected to the forehead support assembly and a movable part connected to the head-mounted display body. The movable part is rotatably connected to the rod body, allowing the head-mounted display body to be rotated upward to open or downward to the use position.

3. The head-mounted display with multi-directional adjustable display position according to claim 2, characterized in that, The forehead support assembly includes a forehead support body, a slide rail disposed on the forehead support body, and a movable seat slidably connected to the slide rail. A first locking member is disposed between the movable seat and the slide rail to lock the position of the movable seat on the slide rail.

4. The head-mounted display with multi-directional adjustable display position according to claim 3, characterized in that, The first locking element includes a mounting shell connected to the movable base. A limiting block is slidably installed inside the mounting shell. A reset element is provided between the limiting block and the mounting shell. The limiting block has an opening on one side facing the slide rail. The slide rail has multiple protrusions along its length. The protrusions can be inserted into the opening to achieve a snap-fit ​​locking. The movable base is also provided with a button. By pressing the button, the limiting block can be driven to slide and separate from the corresponding protrusions to release the locking state.

5. The head-mounted display with multi-directional adjustable display position according to claim 4, characterized in that, The limiting block has a through hole, and the mounting shell has a strip groove along the sliding direction of the limiting block. A pin passes through the through hole, and the end of the pin passes through the strip groove and engages with the inclined block provided on the button.

6. The head-mounted display with multi-directional adjustable display position according to claim 3, characterized in that, The outer surface of the forehead support body protrudes outward to form an extension, and the side of the extension away from the forehead support body has a mounting groove for mounting the slide rail.

7. The head-mounted display with multi-directional adjustable display position according to claim 6, characterized in that, The movable base is also connected to a forehead support member. The forehead support member has a groove in the area corresponding to the extension. After the forehead support member is installed, it abuts against the extension through the groove.

8. The head-mounted display with multi-directional adjustable display position according to claim 2, characterized in that, The head-mounted display body includes a display body and a fixed frame for mounting the display body. The fixed frame is provided with a guide rail, and the transmission link is slidably connected to the guide rail. The second locking member is provided on the fixed frame to lock the position of the transmission link on the guide rail.

9. The head-mounted display with multi-directional adjustable display position according to claim 8, characterized in that, The second locking member includes a locking block that can move along a direction perpendicular to the guide rail track path. An elastic element is provided between the locking block and the fixed frame. Multiple positioning slots are opened at the bottom of the movable part. The fixed frame is also provided with a button that cooperates with the locking block. By pressing the button, the locking block can be driven to slide and move out of the corresponding positioning slot above to release the locking state.

10. The head-mounted display with multi-directional adjustable display position according to claim 9, characterized in that, The locking block is provided with a first inclined surface that cooperates with the button. When the button moves, it pushes the locking block down through the first inclined surface.

Images