A reading assistive device for frail elderly users

Abstract

The present invention relates to the technical field of assistive devices, and specifically to a reading assist device for elderly and frail users, including a controller and a mobile vehicle; the mobile vehicle is provided with an adjusting component for adjusting the magnification of text and a projection component for projecting text. The adjusting component includes a head support, the eye position of the head support is symmetrically fixedly connected to a shell, the inner wall of the shell is fixedly connected to partitions, the partitions divide the inside of the shell fixedly connected thereto into an adjustment box and an observation box, the inner wall of the adjustment box is fixedly connected to an electric control cylinder, the output shaft of the electric control cylinder is fixedly connected to an arc plate; the inner wall of the adjustment box away from the electric control cylinder is fixedly connected to a center rod, a number of rotating blocks are rotatably sleeved on the center rod, the inner wall of the rotating block is fixedly connected to a guide block, and the top of the rotating block is fixedly connected to a magnifying lens; the present invention has a complete structure and can effectively assist elderly and frail users in reading.

Description

Technical Field

[0001] The present invention relates to the technical field of assistive devices, and in particular to a reading assistive device for elderly and frail users. Background Art

[0002] As people age, their vision gradually declines, and they may develop eye diseases such as presbyopia and cataracts, which can cause blurry and difficult-to-recognize text when reading. This requires elderly and frail users to read at a closer distance, with brighter light or with auxiliary tools (such as reading glasses and magnifying glasses) to see the text clearly.

[0003] In the prior art, magnifying lenses are often used to make reading assistance devices to assist frail elderly users in reading. The reading assistance devices in the prior art can provide assistance to frail elderly users and effectively magnify the observation magnification of the elderly users, thereby facilitating the elderly users to read. However, since the observation magnification of the reading assistance devices in the prior art is fixed and the observation magnification cannot be adjusted, if the user's eye condition changes or it is provided to different users, the device needs to be replaced, resulting in increased reading costs and low reading convenience.

[0004] In summary, how to solve the problem that the reading assistive device in the prior art has a fixed observation magnification and cannot adjust the observation magnification. If the user's eye condition changes or it is provided to different users, the device needs to be replaced, resulting in increased reading costs and low reading convenience has become a difficult problem that needs to be solved in the current field. Therefore, it is necessary to propose a reading assistive device for elderly and frail users that can improve reading convenience. Summary of the invention

[0005] To solve the above problems, the present invention proposes a reading assistance device for elderly and frail users. Through the design of the acquisition component, the user's eye data can be effectively collected, and then through the design of the adjustment component, the magnification of the device can be adjusted according to the user's eye data. Through the design of the projection component, the reading content is projected by projection, thereby enhancing the convenience of reading and reducing the user's eye fatigue.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a reading assistance device for elderly and frail users, including a controller and a mobile vehicle, a reading table for placing reading texts is fixedly connected to the top of the mobile vehicle, and a page turning component for automatically turning pages is provided on the reading table; an adjustment component for adjusting the text magnification and a projection component for projecting text are provided on the mobile vehicle.

[0007] The adjustment component includes a head bracket, the eye position of the head bracket is symmetrically fixedly connected to the shell, the inner wall of the shell is fixedly connected to partitions, the partitions divide the inside of the shell into an adjustment box and an observation box, the inner wall of the adjustment box is fixedly connected to the electric control cylinder, and the output shaft of the electric control cylinder is fixedly connected to an arc plate; the inner wall of the adjustment box away from the electric control cylinder is fixedly connected to a center rod, a plurality of rotating blocks are provided on the center rod, a center hole is opened on the rotating block, the rotating blocks are rotatably matched with the center rod through the center hole, a guide block is fixedly connected to the center hole, and a magnifying mirror is fixedly connected to the top of the rotating block; the center rod is opened with a sliding groove for the sliding of the arc plate, and the arc plate is opened with an arc groove for the sliding of the guide block; the partition is opened with a plurality of rotating grooves for the rotation of the magnifying mirror and the rotating block.

[0008] An eyepiece is embedded in the observation box on the side close to the head bracket, and an objective lens is embedded in the observation box on the side away from the head bracket. The center point of the objective lens and the center point of the eyepiece are located on the same center line; a collection component for collecting user eye data is provided in the observation box, and a controller is used to adjust the output distance of the electric control cylinder according to the user's eye data.

[0009] The technical principles of the above scheme are as follows:

[0010] Before reading, the acquisition component will collect the user's eye data to facilitate subsequent adjustment of the combination of magnification mirrors.

[0011] When reading, the user wears the head bracket on the head and aligns the eyepiece with the eyes. At this time, the controller will control the extension of the output shaft of the electric cylinder according to the user's eye data. The output shaft of the electric cylinder pushes the arc plate, and the arc plate slides forward on the sliding groove along the center rod; when the arc groove contacts the guide block on the inner wall of the rotating block, the guide block will rotate along the trajectory of the arc groove, and the guide block will then drive the rotating block to start rotating on the center rod. At this time, the rotating block will drive the magnifying lens to rotate, and the magnifying lens will pass through the rotating groove and then be located between the eyepiece and the objective lens, aligned with the observation point, thereby magnifying the reading text and adjusting the magnification required by the user.

[0012] During the reading process, the projection component will project the content of the reading text, and the page turning component will automatically turn the pages of the reading text.

[0013] The above scheme has the following beneficial effects:

[0014] 1. The present invention collects the user's eye data before reading, and automatically adjusts the output distance of the electric control cylinder according to the user's eye data, so as to adjust the magnification of the device in a targeted manner to help the user read clearly. Since the eyes of the elderly are prone to weakening and their vision changes greatly, during the use of the present invention, even if the user's eye condition changes or a different user is replaced, the device can still provide the user with a personalized reading experience, so that the user can read clearly without frequently changing the device for reading, which improves the convenience of reading and reduces the cost of reading. In conjunction with the subsequent projection component, according to the user's eye data, the reading text is projected into text and images that the user can directly view with the naked eye according to the user's strength, so that the user can directly read the text without wearing any other equipment during the reading process, which greatly improves the convenience of reading. And compared with the prior art, the present invention will not cause harm to the user's eyes by continuously wearing a wearable device to improve the user's vision and then read the text, and its safety and comfort are greatly improved.

[0015] 2. The present invention uses the design of the electric control cylinder and the arc plate, and the controller can automatically adjust the output distance of the electric control cylinder according to the user's eye data, and then adjust the combination of the lens, so as to achieve rapid adjustment of the magnification. The operation is simple and intelligent, avoiding the problem of inconvenience caused by complex operation or inflexible hands and feet for elderly users, and improving the practicality of the device.

[0016] 3. The present invention further improves the convenience and practicality of the device through the design of the projection component and the book turning component. The projection component will project the content of the reading text, and the page turning component will automatically turn the pages of the reading text. The user only needs to watch the text content without performing other operations, which is convenient, fast, simple and practical.

[0017] Furthermore, the acquisition component includes a point lamp and an infrared lamp fixedly connected to the inner wall of the observation box, and the point lamp and the infrared lamp are respectively located on both sides of the objective lens; the inner wall of the observation box is also fixedly connected to an image collector; the controller is used to identify the user's eye image and the reflection point of the infrared light emitted by the infrared lamp through the image collector, judge the focus position movement speed of the user's line of sight based on the user's eye image and the reflection point of the infrared light, and calculate the user's reading speed based on the focus position movement speed; the controller is also used to identify the focusing situation of the single point light beam emitted by the point lamp on the user's fundus through the image collector, and analyze the user's magnification based on the focusing situation of the user's fundus.

[0018] Beneficial effects: The controller can analyze the user's reading speed through the reflected light of the infrared lamp in the user's eyes; the controller can also analyze the user's magnification through the focusing of the point light in the user's fundus; it is convenient for the subsequent controller to adjust the appropriate magnification for the user.

[0019] Furthermore, a projector is embedded and installed on one side wall of the mobile vehicle in the length direction; and a controller is used to adjust the font projection size, brightness and contrast of the projector according to the user's magnification.

[0020] Beneficial effect: The controller adjusts the delivery effect of the reading text according to the user's reading speed and magnification, thereby improving the user's reading quality.

[0021] Furthermore, a player and a radio are fixedly connected to one side wall of the mobile vehicle in the width direction; the controller is also used to recognize the user's voice through the radio and perform voice interaction with the user through the player.

[0022] Beneficial effects: Users can adjust the volume of the player, the magnification and content of the reading text through voice interaction, making the device more convenient and practical.

[0023] Furthermore, the page turning assembly includes a first driving member fixedly connected to the side wall of the reading table, and the output shaft of the first driving member is coaxially fixedly connected to a lever; a second driving member is also fixedly connected to the top of the reading table, and the output shaft of the second driving member is coaxially fixedly connected to an adsorption rod, and an end of the adsorption rod away from the second driving member is fixedly connected to an electrostatic ball with static electricity; the lever and the adsorption rod are both located above the reading table, and the controller is used to control the opening and closing of the first driving member and the second driving member; the controller is also used to control the static electricity size of the electrostatic ball.

[0024] Beneficial effect: The controller will control the operation of the first drive member and the second drive member according to the user's reading speed; during this process, when the output shaft of the second drive member rotates forward, the adsorption rod will rotate downward and fit with the reading text, and the static electricity generated by the electrostatic ball will be used to adsorb the paper. When the output shaft of the second drive member rotates reversely, the adsorption rod will rotate upward and drive the paper of the reading text to move upward. After the paper moves up, the controller will control the output shaft of the first drive member to rotate, drive the lever to sweep the paper adsorbed by the adsorption rod, drive the paper to flip over and straighten it flat.

[0025] The controller will adjust the static electricity size of the electrostatic ball and the rotation speed of the output shaft of the first drive member according to the different masses and weights of the reading text, so that the electrostatic ball only absorbs one piece of paper at a time, so that the lever will not damage the paper when moving the paper; the controller will also control the starting frequency of the first drive member and the second drive member according to the user's reading speed, so as to adapt to the user's reading speed.

[0026] Furthermore, a plurality of compression grooves are provided at the bottom of the center rod along its length direction, a spring is fixedly connected to the top wall of the compression groove, and a limiting block is fixedly connected to the bottom of the spring; the limiting blocks are slidably matched with the adjacent rotating blocks; a plurality of trapezoidal limiting grooves slidably matched with the limiting blocks are provided on the inner wall of the rotating block, and adjacent limiting grooves on the same rotating block are spaced 90° apart.

[0027] Beneficial effect: During the rotation of the rotating block, the limit block will be squeezed by the inner wall of the rotating block. At this time, the spring is compressed and the limit block will be squeezed into the compression groove; when the rotating block rotates 90°, the limit block is aligned with one of the limit grooves, and the limit block loses the limit of the inner wall of the rotating block. The spring extends and pushes the limit block into the limit groove, so that the rotating block remains stable when it is not subjected to external force. The limit groove is trapezoidal, which is convenient for the limit block to rotate.

[0028] Furthermore, a push-pull groove is provided on one side wall of the moving vehicle in the length direction, the push-pull groove is located below the projector, and a drawer for placing the head bracket is slidably fitted in the push-pull groove.

[0029] Beneficial effects: The drawer can be used to store the head bracket, which is convenient for protecting and transporting the head bracket and improving the service life and convenience of the device.

[0030] Furthermore, a camera is fixedly connected to the top of the mobile vehicle, and the controller is used to identify the content of the reading text according to the camera and project the content of the reading text through the projector.

[0031] Beneficial effect: The user only needs to place the reading text on the reading table, and the camera can quickly identify the content of the reading text. The controller transmits the content of the reading text recognized by the camera to the projector, thereby realizing the projection of different reading text contents, making the reading process simple and fast.

[0032] Furthermore, a plurality of remote control wheels are installed at the bottom of the mobile vehicle, and the controller is used to control the operation of the remote control wheels.

[0033] Beneficial effect: The user only needs to control the remote control wheel through the controller to control the mobile vehicle to move to the specified position, so that the device can perform projection at different angles and can also transport the head bracket and other items for the user.

[0034] Furthermore, a buckle rope and a buckle rope are fixedly connected to both sides of the bottom of the head support respectively.

[0035] Beneficial effect: After the user wears the head bracket on the head, the buckle ropes and the buckle ropes on both sides are connected, which can make the head bracket more stable, thereby improving the collection of the user's eye data and the adjustment of the magnification.

[0036] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is an axonometric diagram of a reading assistance device for elderly and frail users according to an embodiment of the present invention.

[0038] Figure 2 It is an axonometric view of the adjustment component in an embodiment of the present invention.

[0039] Figure 3 It is a top sectional view of the adjustment box and the observation box in the embodiment of the present invention.

[0040] Figure 4 It is an axonometric cross-sectional view of the adjustment box and the observation box in the embodiment of the present invention.

[0041] Figure 5 Schematic diagram of the axonometric view of the curved plate and the center rod in the embodiment of the present invention.

[0042] Figure 6 It is a side sectional view of the rotating block in the embodiment of the present invention.

[0043] Figure 7 It is an axonometric view of the rotating block in the embodiment of the present invention.

[0044] The figure marks in the drawings of the specification include: 1. mobile vehicle; 2. projector; 3. reading table; 4. player; 5. head support; 6. outer shell; 7. partition; 8. eyepiece; 9. objective lens; 10. electric cylinder; 11. arc plate; 12. center rod; 13. rotating block; 14. magnifying glass; 15. point light; 16. infrared light; 17. guide block; 18. limit block; 19. lever; 20. suction rod; 21. camera; 22. drawer. DETAILED DESCRIPTION

[0045] The following is further described in detail through specific implementation methods:

[0046] Embodiment 1:

[0047] As attached Figure 1-7 As shown: a reading assistance device for elderly and frail users, a reading assistance device for elderly and frail users, including a controller and a mobile vehicle 1, a reading table 3 for placing reading text is bolted fixedly connected to the top of the mobile vehicle 1, and a page turning component for automatically turning pages is provided on the reading table 3; the mobile vehicle 1 is provided with an adjustment component for adjusting the text magnification and a projection component for projecting text.

[0048] like Figure 2As shown, the adjustment component includes a head bracket 5, and a shell 6 is symmetrically welded at the eye position of the head bracket 5. Partitions 7 are welded on the inner walls of the shell 6, and the partitions 7 separate the interior of the shell 6 into an adjustment box and an observation box.

[0049] like Figure 3 and Figure 4 As shown, the inner wall of the regulating box is bolted to the electric control cylinder 10, and the output shaft of the electric control cylinder 10 is bolted to the arc plate 11; the inner wall of the regulating box away from the electric control cylinder 10 is bolted to the center rod 12, and a plurality of rotating blocks 13 are arranged on the center rod 12, and a center hole is opened on the rotating block 13, and the rotating block 13 is rotatably matched with the center rod 12 through the center hole, and a guide block 17 is bolted to the center hole; a magnifying lens 14 is fixedly bonded to the top of the rotating block 13; a sliding groove for the arc plate 11 to slide is opened on the center rod 12, and an arc groove for the guide block 17 to slide is opened on the arc plate 11; a plurality of rotating grooves for the magnifying lens 14 and the rotating block 13 to rotate are opened on the partition (7).

[0050] An eyepiece 8 is embedded and installed on the side of the observation box close to the head bracket 5, and an objective lens 9 is embedded and installed on the side of the observation box away from the head bracket 5. The center point of the objective lens 9 and the center point of the eyepiece 8 are both located on the same center line; a collection component for collecting user eye data is provided in the observation box, and a controller is used to adjust the output distance of the electric control cylinder 10 according to the user's eye data.

[0051] The acquisition component includes a point lamp 15 and an infrared lamp 16 fixedly connected to the inner wall of the observation box by screws, and the point lamp 15 and the infrared lamp 16 are respectively located on both sides of the objective lens 9; the inner wall of the observation box is also bolted to an image collector; the controller is used to identify the user's eye image and the reflection point of the infrared light emitted by the infrared lamp 16 through the image collector, judge the focus position movement speed of the user's line of sight based on the user's eye image and the reflection point of the infrared light, and calculate the user's reading speed based on the focus position movement speed; the controller is also used to identify the focusing situation of the single point light beam emitted by the point lamp 15 on the user's fundus through the image collector, and analyze the user's magnification based on the focusing situation of the user's fundus.

[0052] like Figure 1 As shown, a projector 2 is embedded and installed on one side wall of the mobile vehicle 1 in the length direction; the controller is used to adjust the font projection size, brightness and contrast of the projector 2 according to the user's magnification.

[0053] The top of the mobile vehicle 1 is bolted with a camera 21, and the controller is used to identify the content of the reading text according to the camera 21, and project the content of the reading text through the projector 2. The user only needs to place the reading text on the reading table 3, and the camera 21 can quickly identify the content of the reading text. The controller transmits the content of the reading text recognized by the camera 21 to the projector 2, thereby realizing the projection of different reading text contents, making the reading process simple and fast. At the same time, the camera 21 will also identify the brightness of the environment and the color of the reading text. The controller will adjust the brightness of the projection based on the brightness of the environment. The greater the brightness of the environment, the greater the brightness of the projection, the richer the color of the reading text, and the greater the contrast of the projection.

[0054] The page turning assembly includes a first driving member fixedly connected to the side wall of the reading table 3 by bolts, and the output shaft of the first driving member is fixedly connected to the lever 19 by bolts; the top of the reading table 3 is also fixedly connected to the second driving member by bolts, and the second driving member is fixedly connected to the adsorption rod 20 by bolts, and the front end of the adsorption rod 20 is fixedly connected to an electrostatic ball with static electricity by bolts; the lever 19 and the adsorption rod 20 are both located above the reading table 3, and the controller is used to control the opening and closing of the first driving member and the second driving member; the controller is also used to control the static electricity of the electrostatic ball. In this embodiment, the first driving member and the second driving member are respectively selected from the first motor and the second motor. Among them, the output shaft of the first motor is vertically arranged, so that the lever 19 can rotate horizontally, and the output shaft of the second motor is horizontally arranged, so that the adsorption rod 20 can rotate vertically.

[0055] The specific implementation process is as follows:

[0056] by Figure 2 and Figure 3 For example, first, the user wears the head bracket 5 on the head and aims the eyepiece 8 at the eyes; the user starts the point light 15 through the controller, and the point light 15 will emit a single point light beam to the user's fundus. The single point light beam will be reflected after reaching the user's fundus, and the controller will identify the reflection of the single point light beam through the image collector, and then judge the focusing condition of the user's fundus, and analyze the magnification required by the user based on the focusing condition of the user's fundus. The worse the focusing condition, the greater the magnification required by the user.

[0057] by Figure 3 and Figure 4For example, the controller will adjust the combination of the magnifying lens 14 according to the magnification required by the user. In this process, the controller will control the output shaft of the electric control cylinder 10 to extend forward, and the output shaft of the electric control cylinder 10 will push the arc plate 11, and the arc plate 11 will slide forward on the sliding groove along the center rod 12; when the arc groove contacts the guide block 17 on the inner wall of the rotating block 13, the guide block 17 will rotate along the trajectory of the arc groove, and the guide block 17 will then drive the rotating block 13 to start rotating on the center rod 12. At this time, the rotating block 13 will drive the magnifying lens 14 to rotate, and the magnifying lens 14 will pass through the rotating groove adjacent to it and then be located between the eyepiece 8 and the objective lens 9, aligning with the observation point, thereby magnifying the reading text.

[0058] In this process, the greater the output distance of the output shaft of the electric control cylinder 10, the greater the distance the arc plate 11 slides on the sliding groove, and the more magnifying lenses 14 are rotated into the observation box. Due to the superposition effect of the magnifying lenses 14, the magnification of the observation box is greater.

[0059] When the output shaft of the electric cylinder 10 drives the arc plate 11 to contract, the arc groove drives the guide block 17 to rotate in the opposite direction, and the guide block 17 drives the rotating block 13 to return to the original position in sequence, so that the magnification is gradually reduced, thereby enabling the device to adjust magnifications of different sizes.

[0060] After the controller automatically adjusts, the user can also control the output distance of the output shaft of the electric control cylinder 10 through the controller according to the image he observes, and then further adaptively adjust the magnification to improve the observation effect.

[0061] by Figure 3 For example, after the adjustment is completed, the user starts the infrared lamp 16 through the controller, and the infrared lamp 16 will emit an infrared light to the user's fundus, and the infrared light will be reflected after reaching the user's fundus; at this time, the user reads the text, and the focus position of the user's line of sight is the position where the user reads. Since the reflected light of the infrared light is in a concentrated state, and the reflection path is the same as the user's line of sight, the position where the reflected light of the infrared light is aimed is also the position where the user reads; the controller will determine the focus position of the user's line of sight based on the image collector recognizing the user's eye image and the position of the reflected infrared light, and calculate the user's reading speed according to the moving speed of the focus position.

[0062] After the magnification and reading speed required by the user are collected, the controller will start the projector 2, and the controller will adjust the projected text size of the projector 2 according to the magnification required by the user. At this time, the user can remove the head support 5 and read directly with the naked eye without wearing additional equipment, making the reading process simple and fast, and not easy to fatigue the eyes.

[0063] by Figure 1For example, a reading text is placed on the reading table 3. In the initial state, the lever 19 and the suction rod 20 are both located on the left side of the reading table 3, and the suction rod 20 is located above the book and the lever 19;

[0064] During the reading process, the controller controls the operation of the first motor and the second motor according to the user's reading speed; during this process, when the second motor output shaft rotates forward, the second motor output shaft drives the adsorption rod 20 to rotate downward and fit with the reading text, and uses the static electricity generated by the electrostatic ball to adsorb the paper; when the second motor output shaft rotates reversely, the second motor output shaft drives the adsorption rod 20 to rotate upward and drive the paper on the left side of the reading text to move upward. After the paper on the left side moves up, due to the adsorption effect of the electrostatic ball, the paper on the left side of the reading text will remain in a suspended state. At this time, the controller controls the first motor output shaft to rotate, and the first motor output shaft drives the lever 19 to rotate from the left side of the reading table 3 to the right side of the reading table 3, so that the lever 19 moves the paper adsorbed by the adsorption rod 20, drives the paper from the left side of the reading text to the right side of the reading text, and flattens it, thereby realizing page turning.

[0065] The lever 19 can also press the reading text during this process to increase the clarity of image recognition and prevent accidental page turning or book falling due to the influence of the external environment.

[0066] The present invention collects the user's eye data before reading, and automatically adjusts the output distance of the electric control cylinder 10 according to the user's eye data, so as to specifically adjust the magnification of the device, thereby helping the user to read clearly. Since the eyesight of the elderly is prone to weakening and the eye condition changes greatly, during the use of the present invention, even if the user's eye condition changes, the device can still adjust to the user's eye condition changes, providing a personalized reading experience, allowing the user to continue to read clearly without frequently changing the device for reading, thereby improving the convenience of reading and reducing the cost of reading.

[0067] Through the design of the electric cylinder 10 and the arc plate 11, the controller can automatically adjust the output distance of the electric cylinder 10 according to the user's eye data, and then adjust the combination of the lens 14, so as to achieve rapid adjustment of the magnification. The operation is simple and intelligent, avoiding the problem of inconvenience caused by complex operation or inflexible hands and feet of elderly users, and improving the practicality of the device.

[0068] Embodiment 2:

[0069] As attached Figure 1As shown, the difference from the above embodiment is that a player 4 and a radio are fixedly connected by bolts on one side wall of the mobile vehicle 1 in the width direction; the controller is used to recognize the user's voice through the radio and perform voice interaction with the user through the player 4.

[0070] The specific implementation process is as follows: During the reading process, the user can adjust the volume of the player 4, the magnification of the reading text, and the content through voice interaction, making the device more convenient and practical. For example, the user can say "automatically read", "reduce the volume", and "change content A to B", etc., and the controller will receive the user's voice instructions through the receiver, so that the device automatically reads the content in the text, reduces the reading volume, and performs text modification operations.

[0071] Embodiment 3:

[0072] As attached Figure 5 and Figure 6 As shown, the difference from the above embodiment is that a plurality of compression grooves are opened at the bottom of the center rod 12, the top wall of the compression groove is fixedly connected with a spring by screws, and the bottom of the spring is fixedly connected with a limit block 18 by screws; the limit blocks 18 are slidably matched with the adjacent rotating blocks 13; the inner wall of the rotating block 13 is opened with a plurality of trapezoidal limit grooves slidably matched with the limit blocks 18, and the adjacent limit grooves on the same rotating block 13 are spaced 90° apart.

[0073] The specific implementation process is as follows: in the initial state, the limit block 18 is located in one of the limit grooves on the rotating block 13, so that the rotating block 13 remains stable; when the arc plate 11 contacts the guide block 17, the rotating block 13 will start to rotate; during the rotation of the rotating block 13, the limit block 18 will be squeezed by the inner wall of the rotating block 13, and the limit block 18 will be gradually squeezed into the compression groove, and the spring will also be compressed by the pressure; during the rotation process, due to the limiting effect of the inner wall of the rotating block 13, the limit block 18 will continue to be compressed in the compression groove. When the rotating block 13 rotates 90°, the limit block 18 is aligned with another limit groove, and the limit block 18 loses the limit of the inner wall of the rotating block 13. The spring will begin to extend and push the limit block 18 into the limit groove, so that the rotating block 13 can remain stable when it is not subject to external force. The trapezoidal design of the limit groove can facilitate the limit block 18 to enter and slide out of the limit groove.

[0074] Embodiment 4:

[0075] As attached Figure 1 As shown, the difference from the above embodiment is that a push-pull groove is opened on the upper side wall of one side wall in the length direction of the mobile vehicle 1, and the push-pull groove is located below the projector 2. A drawer 22 for placing the head bracket 5 is slidably fitted in the push-pull groove.

[0076] The specific implementation process is as follows: the drawer 22 can be used to store the head bracket 5, which is convenient for protecting and transporting the head bracket 5 and improving the service life and convenience of the device; at the same time, it also increases the space utilization rate, avoids the head bracket 5 occupying space, and facilitates storage and management.

[0077] Embodiment 5:

[0078] As attached Figure 1 As shown, the difference from the above embodiment is that a plurality of remote control wheels are embedded and installed at the bottom of the mobile vehicle 1, and the controller is used to control the operation of the remote control wheels.

[0079] The specific implementation process is as follows: the user only needs to control the remote control wheel through the controller to control the mobile vehicle 1 to move to the specified position, so that the device can perform projection at different angles and can also transport the head bracket 5 and other items for the user.

[0080] Embodiment 6:

[0081] As attached Figure 2 As shown, the difference from the above embodiment is that a buckle rope and a buckle rope are fixedly bonded to both sides of the bottom of the head support 5 respectively.

[0082] The specific implementation process is as follows: after the user wears the head bracket 5 on the head, the buckle ropes and the buckle ropes on both sides are connected, which can make the head bracket 5 more stable, thereby improving the collection of the user's eye data and the adjustment of the magnification.

[0083] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A reading assistance device for elderly frail users, characterized in that: It includes a controller and a mobile vehicle (1); A reading table (3) for placing reading text is fixedly connected to the top of the mobile vehicle (1); a page turning component for automatically turning pages is provided on the reading table (3); an adjustment component for adjusting the text magnification and a projection component for projecting text are provided on the mobile vehicle (1); The adjustment component comprises a head support (5), wherein the eye position of the head support (5) is symmetrically fixedly connected to a shell (6); the inner wall of the shell (6) is fixedly connected to a partition (7), and the partition (7) divides the inside of the shell (6) into an adjustment box and an observation box; The inner wall of the regulating box is fixedly connected to an electric control cylinder (10), and the output shaft of the electric control cylinder (10) is fixedly connected to an arc plate (11); the inner wall of the regulating box on the side away from the electric control cylinder (10) is fixedly connected to a center rod (12), and a plurality of rotating blocks (13) are arranged on the center rod (12), and a center hole is opened on the rotating block (13), and the rotating block (13) is rotatably matched with the center rod (12) through the center hole, and a guide block (17) is fixedly connected to the center hole; and a magnifying mirror (14) is fixedly connected to the top of the rotating block (13); The center rod (12) is provided with a sliding groove for the arc plate (11) to slide; the arc plate (11) is provided with an arc groove for the guide block (17) to slide; the partition plate (7) is provided with a plurality of rotating grooves for the magnifying mirror (14) and the rotating block (13) to rotate; An eyepiece (8) is embedded in the side of the observation box close to the head bracket (5), and an objective lens (9) is embedded in the side of the observation box away from the head bracket (5); the center point of the objective lens (9) and the center point of the eyepiece (8) are both located on the same center line; A collection component for collecting user eye data is provided in the observation box, and the controller is used to adjust the output distance of the electric control cylinder (10) according to the user's eye data.

2. The reading assistance device for frail elderly users according to claim 1, characterized in that: The collection component comprises a point-shaped lamp (15) and an infrared lamp (16) fixedly connected to the inner wall of the observation box, and the point-shaped lamp (15) and the infrared lamp (16) are respectively located on both sides of the objective lens (9); The inner wall of the observation box is also fixedly connected to an image collector, and the controller is used to identify the user's eye image and the reflection point of the infrared light emitted by the infrared lamp (16) through the image collector, judge the moving speed of the focus position of the user's sight based on the user's eye image and the reflection point of the infrared light, and calculate the user's reading speed based on the moving speed of the focus position; The controller is also used to identify the focusing condition of the single point light beam emitted by the point light (15) on the fundus of the user through the image collector, and analyze the magnification of the user based on the focusing condition of the fundus of the user.

3. The reading assistance device for frail elderly users according to claim 2, characterized in that: A projector (2) is embedded and installed on one side wall of the mobile vehicle (1) in the length direction; and a controller is used to adjust the size, brightness and contrast of the font projected by the projector (2) according to the magnification of the user.

4. The reading assistance device for frail elderly users according to claim 3, characterized in that: A player (4) and a receiver are fixedly connected to one side wall in the width direction of the mobile vehicle (1); the controller is used to recognize the user's voice through the receiver and to perform voice interaction with the user through the player (4).

5. The reading assistance device for frail elderly users according to claim 4, characterized in that: The page turning assembly comprises a first driving member fixedly connected to the side wall of the reading platform (3), and the output shaft of the first driving member is coaxially fixedly connected to a shifting rod (19); A second driving member is also fixedly connected to the top of the reading table (3); an adsorption rod (20) is coaxially fixedly connected to the output shaft of the second driving member; an electrostatic ball with static electricity is fixedly connected to one end of the adsorption rod (20) away from the second driving member; The lever (19) and the adsorption lever (20) are both located above the reading table (3). The controller is used to control the opening and closing of the first driving member and the second driving member; the controller is also used to control the static electricity level of the electrostatic ball.

6. The reading assistance device for frail elderly users according to claim 5, characterized in that: The bottom of the center rod (12) is provided with a plurality of compression grooves along its length direction, the top walls of the compression grooves are fixedly connected with springs, and the bottoms of the springs are fixedly connected with limit blocks (18); The limit blocks (18) are all slidably matched with the rotating blocks (13) adjacent thereto; the inner walls of the rotating blocks (13) are each provided with a plurality of trapezoidal limit grooves slidably matched with the limit blocks (18), and adjacent limit grooves on the same rotating block (13) are spaced 90 degrees apart.

7. The reading assistance device for frail elderly users according to claim 6, characterized in that: A push-pull groove is provided on one side wall of the moving vehicle (1) in the length direction. The push-pull groove is located below the projector (2). A drawer (22) for placing the head support (5) is slidably matched in the push-pull groove.

8. The reading assistance device for frail elderly users according to claim 7, characterized in that: A camera (21) is fixedly connected to the top of the mobile vehicle (1), and a controller is used to identify the content of the reading text through the camera (21) and project the content of the reading text through the projector (2).

9. The reading assistance device for frail elderly users according to claim 8, characterized in that: A plurality of remote control wheels are installed at the bottom of the mobile vehicle (1), and a controller is used to control the operation of the remote control wheels.

10. The reading assistance device for frail elderly users according to claim 9, characterized in that: A buckle rope and a buckle rope are respectively fixedly connected to both sides of the bottom of the head support (5).

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