Endless adjustable reading stand and multi-dimensional positive posture eye protection platform
Patent Information
- Application Number
- CN202520736368.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-04-17
AI Technical Summary
比如在紧急需要调整阅读角度以便快速获取信息时,却因为要先找到按键、按下按键再等待解锁过程而耽误时间,可能会影响阅读的连贯性和效率
[0015]本实用新型的技术方案通过设置限位组件,利用相互配合的第一限位部和第二限位部,在自然状态下保持抵接限制架体转动,而在外力作用下脱离实现无极转动,解决了现有按键式解锁调节阅读架转动的不便问题,为用户提供了更便捷、高效的阅读架调节方式,能更好地满足用户在不同阅读场景下对阅读角度的灵活需求,提升了整体的使用效果。
Smart Images

Figure CN224806111U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of learning aids, and in particular to a stepless adjustable reading stand and a multi-dimensional posture correction and eye protection table. Background Technology
[0002] Students often bend over, hunch their necks, or hunch over their desks while studying. If they maintain these incorrect postures for a long time, they can develop bad reading and writing habits. On the one hand, this can easily lead to spinal deformities, and on the other hand, it can greatly increase the probability of children developing myopia or worsening their myopia. Adolescents are in a critical period of growth and development, and this will inevitably have irreversible negative effects on their vision and normal physical development. Therefore, it is especially important to ensure that students maintain correct posture in various learning scenarios.
[0003] In existing technologies, to facilitate reading while maintaining an upright sitting posture, a reading frame is typically installed on one side of the support plate of posture-correcting products. To accommodate different users' reading needs, the reading frame is equipped with angle adjustment. Currently, the reading frame rotates by using a button to unlock and allow rotation. However, using a button to unlock and adjust the reading frame's rotation is inconvenient. Each time the angle needs to be adjusted, the button must be manually pressed, undoubtedly increasing the difficulty and time cost of operation. For example, when there is an urgent need to adjust the reading angle for quick information access, the time spent finding, pressing, and waiting for the unlocking process can affect the continuity and efficiency of reading. Utility Model Content
[0004] The main purpose of this invention is to provide a steplessly adjustable reading stand and a multi-dimensional posture correction and eye protection platform, which aims to allow users to adjust the angle of the reading stand more conveniently and quickly, and meet users' needs for reading stand adjustment.
[0005] To achieve the above objectives, this utility model proposes a steplessly adjustable reading stand for use in a multi-dimensional posture correction and eye protection table, comprising: Support section; The frame is rotatably mounted relative to the supporting part; A limiting assembly, located between the support portion and the frame, includes a first limiting portion and a second limiting portion that cooperate with each other. The first limiting portion is disposed on the support portion, and the second limiting portion is disposed on the frame. In its natural state, the first limiting part and the second limiting part are always in contact to restrict the frame from rotating relative to the support part; and when subjected to external force, the first limiting part and the second limiting part disengage to allow the frame to rotate relative to the support part.
[0006] In one embodiment, two limiting components are provided, and the two limiting components are respectively provided at both ends of the support portion.
[0007] In one embodiment, the support includes a support rod and a connecting seat. The connecting seat is used to install on the multi-dimensional posture correction eye protection platform. The support rod includes a first end and a second end that are disposed opposite to each other. The first end of the support rod is rotatably disposed with the connecting seat, and the second end of the support rod cooperates with the frame through a limiting component.
[0008] In one embodiment, the infinitely adjustable reading frame further includes a damping structure disposed between the first end of the support rod and the connecting seat.
[0009] In one embodiment, the limiting component further includes a retainer, the first limiting portion includes a first toothed ring, the second limiting portion includes a second toothed ring, the first toothed ring is disposed on the support portion, the second toothed ring is disposed on the frame, the first toothed ring and the second toothed ring mesh with each other, and the retainer is used to keep the first toothed ring and the second toothed ring meshed at all times.
[0010] In one embodiment, the support portion is provided with a first mounting cavity, and the frame body is provided with a second mounting cavity. The second mounting cavity is coaxially arranged with the first mounting cavity and communicates with it. The first limiting portion is installed in the first mounting cavity, and the second limiting portion is installed in the second mounting cavity.
[0011] In one embodiment, a sliding groove is provided on the inner side of the second mounting cavity, and a sliding part is provided on the outer side wall of the second limiting part. The sliding part is movably disposed in the sliding groove, and the retaining member is disposed between the second mounting cavity and the second limiting part.
[0012] In one embodiment, the second gear ring includes an engaging portion and a mounting portion that are interconnected. The engaging portion engages with the first gear ring, and the mounting portion forms a receiving cavity. The retaining member includes an elastic member disposed within the receiving cavity to provide elastic force to the second gear ring so as to engage with the first gear ring.
[0013] In one embodiment, the elastic element includes a spring, and the limiting assembly further includes a fixing element. The fixing element has limiting protrusions at both ends. One of the limiting protrusions of the fixing element is connected to the first toothed ring. The middle portion of the fixing element passes through the first toothed ring, the second toothed ring, and the spring. The other limiting protrusion of the fixing element is connected to the spring; or... Two limiting components are provided, each corresponding to one end of the support portion; the elastic element includes a spring, and the limiting components also include a fixing component, with limiting protrusions at both ends of the fixing component, one of the limiting protrusions of the fixing component being connected to one of the springs, the middle portion of the fixing component passing through two first toothed rings, two second toothed rings, and the spring, and the other limiting protrusion of the fixing component being connected to another spring.
[0014] This utility model also proposes a multi-dimensional posture correction and eye protection table, including: Support plate; A steplessly adjustable reading stand includes a support, a frame, and a limiting assembly. The frame is rotatably disposed relative to the support. The limiting assembly is located between the support and the frame and includes a first limiting part and a second limiting part that cooperate with each other. The first limiting part is disposed on the support, and the second limiting part is disposed on the frame. In its natural state, the first limiting part and the second limiting part are always in contact to restrict the rotation of the frame relative to the support. When subjected to external force, the first limiting part and the second limiting part disengage to allow the frame to rotate relative to the support. The support is connected to a support plate.
[0015] The technical solution of this utility model, by setting a limiting component, utilizes the cooperating first and second limiting parts to maintain contact and limit the rotation of the frame in a natural state, and to disengage under the action of external force to achieve stepless rotation. This solves the inconvenience of the existing button-type unlocking and adjusting of the reading rack rotation, providing users with a more convenient and efficient way to adjust the reading rack, better meeting users' flexible needs for reading angle in different reading scenarios, and improving the overall user experience. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 A schematic diagram of the structure of an embodiment of the stepless adjustable reading rack provided by this utility model; Figure 2 for Figure 1 A cross-sectional view of a reading rack with stepless adjustment. Figure 3 for Figure 1 A three-dimensional sectional view of a reading rack with stepless adjustment. Figure 4 for Figure 2 A magnified view of the structure at point A in the middle; Figure 5 for Figure 3 A magnified view of the structure at point B in the middle; Figure 6 A schematic diagram of the structure of an embodiment of the multi-dimensional posture correction eye protection table provided by this utility model; Figure 7 for Figure 6 Side view of the multi-dimensional posture correction and eye protection platform.
[0018] Explanation of icon numbers: 100. Infinitely adjustable reading stand; 200. Multi-dimensional posture correction and eye protection table; 1. Support part; 11. Support rod; 12. Connecting seat; 13. First mounting cavity; 2. Frame; 21. Second mounting cavity; 22. Sliding groove; 3. Limiting assembly; 31. First limiting part; 311. First gear ring; 32. Second limiting part; 321. Second gear ring; 3211. Engaging part; 3212. Mounting part; 3213. Receiving cavity; 322. Sliding part; 33. Holding member; 331. Elastic member; 3311. Spring; 34. Fixing member; 341. Limiting protrusion; 4. Damping structure; 5. Support plate.
[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0023] Students often bend over, hunch their necks, or hunch over their desks while studying. If they maintain these incorrect postures for a long time, they can develop bad reading and writing habits. On the one hand, this can easily lead to spinal deformities, and on the other hand, it can greatly increase the probability of children developing myopia or worsening their myopia. Adolescents are in a critical period of growth and development, and this will inevitably have irreversible negative effects on their vision and normal physical development. Therefore, it is especially important to ensure that students maintain correct posture in various learning scenarios.
[0024] The multi-dimensional posture correction and eye protection desk provides users with an ergonomic assistive device for various usage scenarios such as learning, writing, and office work, as well as for reading, writing, and handicraft activities.
[0025] In existing technologies, to facilitate reading while maintaining an upright sitting posture, a reading frame is typically installed on one side of the support plate of posture-correcting products. To accommodate different users' reading needs, the reading frame is equipped with angle adjustment. Currently, the reading frame rotates by using a button to unlock and allow rotation. However, using a button to unlock and adjust the reading frame's rotation is inconvenient. Each time the angle needs to be adjusted, the button must be manually pressed, undoubtedly increasing the difficulty and time cost of operation. For example, when there is an urgent need to adjust the reading angle for quick information access, the time spent finding, pressing, and waiting for the unlocking process can affect the continuity and efficiency of reading.
[0026] To solve the above technical problems, such as Figures 1 to 3As shown, this utility model proposes a steplessly adjustable reading stand 100 for use in a multi-dimensional posture correction and eye protection table 200. It includes a support part 1, a frame 2, and a limiting component 3. The frame 2 is rotatably disposed relative to the support part 1. The limiting component 3 is located between the support part 1 and the frame 2, and includes a first limiting part 31 and a second limiting part 32 that cooperate with each other. The first limiting part 31 is disposed on the support part 1, and the second limiting part 32 is disposed on the frame 2. In its natural state, the first limiting part 31 and the second limiting part 32 are always in contact to restrict the frame 2 from rotating relative to the support part 1. When subjected to external force, the first limiting part 31 disengages from the second limiting part 32 to allow the frame 2 to rotate relative to the support part 1.
[0027] The technical solution of this utility model, by setting a limiting component 3, utilizes the cooperating first limiting part 31 and second limiting part 32 to keep the frame 2 rotating in a natural state, and to achieve stepless rotation by disengaging under the action of external force. This solves the inconvenience of the existing button-type unlocking adjustment of the reading rack rotation, and provides users with a more convenient and efficient way to adjust the reading rack. It can better meet the user's flexible needs for reading angle in different reading scenarios and improve the overall use effect.
[0028] like Figure 4 and Figure 5 As shown, in one embodiment, the support part 1 includes a support rod 11 and a connecting seat 12. The connecting seat 12 is used to install on the multi-dimensional posture correction eye protection table 200. The support rod 11 includes a first end and a second end that are arranged opposite to each other. The first end of the support rod 11 is rotatably connected to the connecting seat 12, and the second end of the support rod 11 cooperates with the frame 2 through a limiting component 3. This arrangement makes the structure of the entire reading stand clearer and more reasonable. The support rod 11, through its rotatable connection with the connecting seat 12, provides a basis for adjusting the angle of the reading stand in the horizontal direction. Furthermore, its cooperation with the frame 2 through the limiting component 3 restricts rotation when a fixed angle is needed, thus satisfying the user's needs for different reading angles while maintaining stability when no adjustment is required. The connecting seat 12, installed on the multi-dimensional posture correction eye protection table 200, provides a reliable installation foundation for the entire reading stand, ensuring the safety and stability of the reading stand during use. The two ends of the support rod 11 are connected to the connecting seat 12 and the frame 2 respectively, forming a complete transmission structure, which enables the limiting component 3 to effectively control the rotation of the frame 2 relative to the support rod 11, thereby realizing the function of stepless rotation.
[0029] In one embodiment, two limiting components 3 are provided, with each limiting component 3 corresponding to one end of the support portion 2. This arrangement allows for simultaneous constraint of the support portion 2 from both ends by limiting components 3 at both ends, effectively reducing instability such as displacement or swaying caused by uneven force or accidental impact during operation, and minimizing the risk of malfunctions and damage due to instability.
[0030] It is understandable that a limiting component 3 could also be provided between the second end of the support rod 11 and the connecting seat 12 to achieve rotation. However, this rotation point needs to bear a large force. Therefore, in one embodiment, the infinitely adjustable reading rack 100 further includes a damping structure 4, which is disposed between the first end of the support rod 11 and the connecting seat 12. This design, through the damping structure 4, generates a certain resistance during rotation, making the rotation smoother and slower, reducing instability or damage to the reading rack caused by sudden rotation or external force. Through the action of the damping structure 4, users can more easily adjust the angle of the reading rack, and it remains stable after being adjusted to the desired angle, preventing easy wobbling or automatic rotation. This design improves the usability of the reading rack while also enhancing its structural reliability and safety.
[0031] Understandably, in one embodiment, the length of the support rod 11 is adjustable. This design allows for flexible adjustment based on the height, reading habits, and usage scenarios of different users. For taller users, the support rod 11 can be extended for a more comfortable reading height; while for shorter users or those with limited space, the support rod 11 can be shortened to save space. Secondly, this adjustable length design allows the reading stand to function optimally in various environments, whether at a desk, on a sofa, or elsewhere, meeting the specific needs of the user. Furthermore, the adjustable length of the support rod 11 also enables the reading stand to be multifunctional; users can adjust the length of the support rod 11 according to different reading materials or tasks to achieve the best visual effect and user experience. The adjustable length of the support rod 11 can be achieved in several ways. For example, it can be designed as a telescopic rod, with nested inner and outer rods inside the support rod 11. The overall length of the support rod 11 can be changed by pulling or pushing the inner rod. Alternatively, a threaded connection can be used, with a threaded sleeve at one end of the support rod 11 and a matching threaded rod at the other end. The length can be adjusted by rotating the threaded rod. A linkage mechanism can also be used, where the length or angle of the linkage is adjusted to indirectly change the length of the support rod 11. These different methods can all achieve the adjustability of the support rod 11's length to meet the needs of different users in different usage scenarios.
[0032] In one embodiment, the limiting assembly further includes a retainer 33. The first limiting portion 31 includes a first toothed ring 311, and the second limiting portion 32 includes a second toothed ring 321. The first toothed ring 311 is disposed on the support portion 1, and the second toothed ring 321 is disposed on the frame 2. The first toothed ring 311 and the second toothed ring 321 are engaged with each other, and the retainer 33 is used to keep the first toothed ring 311 and the second toothed ring 321 engaged at all times. This design, with its mutual engagement, effectively limits the relative movement between the support portion 1 and the frame 2 to a specific range. The retainer 33 always keeps the first toothed ring 311 and the second toothed ring 321 engaged. This means that under any circumstances, such as external force, vibration, or prolonged use, the first toothed ring 311 and the second toothed ring 321 will maintain a tight connection and will not easily disengage. This ensures the stability and reliability of the limiting assembly and reduces device failure or instability caused by toothed ring disengagement. This limiting component can precisely control the position of the support 1, has high stability and durability, and can work reliably in various environments and operating conditions.
[0033] In one embodiment, the support portion 1 is provided with a first mounting cavity 13, and the frame 2 is provided with a second mounting cavity 21. The second mounting cavity 21 is coaxially arranged and interconnected with the first mounting cavity 13. The first limiting portion 31 is installed in the first mounting cavity 13, and the second limiting portion 32 is installed in the second mounting cavity 21. This arrangement, with the first mounting cavity 13 of the support portion 1 and the second mounting cavity 21 of the frame 2 coaxially arranged and interconnected, fully utilizes the spatial structure, allowing the two limiting portions to be installed and operate on the same axis, reducing space waste and layout clutter, and contributing to the compactness and miniaturization of the entire device. From the perspective of installation convenience, the first limiting portion 31 is installed in the relatively fixed first mounting cavity 13, making installation more stable and convenient, ensuring its positional accuracy and reliability during use. The second limiting part 32 is movably disposed within the second mounting cavity 21. This movable arrangement allows it to move or adjust to a certain extent as needed to adapt to different working states or limiting requirements, while also achieving precise limiting function through cooperation with the first limiting part 31.
[0034] Understandably, during the disengagement process of the first limiting part 31 and the second limiting part 32, in one embodiment, a sliding groove 22 is provided on the inner side of the second mounting cavity 21, and a sliding part 322 is provided on the outer wall of the second limiting part 32. The sliding part 322 is movably disposed within the sliding groove 22, and the retaining member 33 is disposed between the second mounting cavity 21 and the second limiting part 32. This configuration, with the sliding groove 22 in the second mounting cavity 21 and the sliding part 322 on the outer wall of the second limiting part 32, forms a sliding fit, allowing the second limiting part 32 to slide smoothly along the sliding groove 22 during disengagement, providing a clear movement trajectory, reducing shaking, deviation, or jamming, and ensuring smooth and accurate disengagement. Simultaneously, the retaining member 33 disposed between the second mounting cavity 21 and the second limiting part 32 provides support and fixation, maintaining the relative position and state of the second limiting part 32 as it slides, reducing unnecessary deformation or misalignment caused by external forces, and contributing to the stability and reliability of the entire system during disengagement.
[0035] To minimize the installation space occupied by the retainer 33, in one embodiment, the second gear ring 321 includes an interconnected engagement portion 3211 and a mounting portion 3212. The engagement portion 3211 engages with the first gear ring 311, and the mounting portion 3212 forms a receiving cavity 3213. The retainer 33 includes an elastic element 331 disposed within the receiving cavity 3213 to provide elastic force to the second gear ring 321 so that it engages with the first gear ring 311. This configuration, by designing the retainer 33 as an elastic element 331 and placing it within the receiving cavity 3213 of the second gear ring 321, achieves both the function of providing elastic force to the second gear ring 321 to engage with the first gear ring 311 and utilizes the structure of the second gear ring 321 itself (i.e., the receiving cavity 3213 formed by the mounting portion 3212) to house the elastic element 331, effectively reducing the installation space occupied by the additional retainer 33. Compared to the traditional mounting method of retainer 33, this integrated design is more compact and efficient. It will not take up too much space due to the addition of extra components, which is conducive to the miniaturization and lightweight design of the entire system. At the same time, it can also ensure that retainer 33 effectively maintains the meshing state of the second gear ring 321 and the first gear ring 311, thereby improving the stability and reliability of the system.
[0036] Specifically, in some embodiments, the elastic element 331 can be made of elastic rubber, elastic plastic, sheet metal, or other elastic materials, and the specific choice can be determined according to actual needs and the usage environment. Furthermore, in one embodiment, the elastic element 331 includes a spring 3311, and the limiting assembly 3 also includes a fixing element 34. The fixing element 34 has limiting protrusions 341 at both ends. One limiting protrusion 341 of the fixing element 34 is connected to the first toothed ring 311, and the middle portion of the fixing element 34 passes through the first toothed ring 311, the second toothed ring 321, and the spring 3311. The other limiting protrusion 341 of the fixing element 34 is connected to the spring 3311. With this configuration, a fixing member 34 is provided with limiting protrusions 341 at both ends. The fixing member 34 connects the spring 3311 to the first gear ring 311 and the second gear ring 321. On the one hand, this can stabilize the position of the spring 3311, allowing it to accurately exert its elastic effect. On the other hand, the limiting protrusions 341 of the fixing member 34 can effectively limit and constrain the spring 3311, preventing the spring 3311 from shifting or excessively deforming during operation, thereby ensuring the normal operation and reliability of the entire limiting assembly 3.
[0037] It is worth noting that there are two limiting components 3. When the two limiting components 3 are respectively provided at both ends of the support part 1, in one embodiment, the elastic element 331 includes a spring 3311, and the limiting component 3 also includes a fixing member 34. The fixing member 34 has limiting protrusions 341 at both ends. One limiting protrusion 341 of the fixing member 34 is connected to one of the springs 3311. The middle part of the fixing member 34 passes through two first toothed rings 311, two second toothed rings 321, and the spring 3311. The other limiting protrusion 341 of the fixing member 34 is connected to the other spring 3311. With this configuration, the springs 3311 in the two limiting components can be limited by one fixing member 34, reducing the use of multiple independent fixing parts, reducing the number of parts, and making the overall structure simpler and more compact. In addition, both limiting protrusions 341 are located on the outside, which can reduce the assembly complexity and facilitate installation and maintenance.
[0038] like Figure 6 and Figure 7As shown, this utility model also proposes a multi-dimensional posture correction eye protection table 200, which includes a support plate 5 and a steplessly adjustable reading frame 100. The specific structure of the steplessly adjustable reading frame 100 is as described in the above embodiments. Since this multi-dimensional posture correction eye protection table 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The support part 1 is connected to the side end of the support plate 5.
[0039] In the above-described technical solution, by combining the infinitely adjustable reading stand 100 with the support plate 5, the infinitely rotating function of the reading stand provides users with a more convenient and flexible way to adjust the reading angle. The support part 1 is connected to the support plate 5, which stabilizes and supports the reading stand, ensuring good stability during infinitely rotating and preventing wobbling or tilting, thus providing users with a stable and comfortable reading environment. The support part 1 can be located on the side or end of the support plate 5.
[0040] In addition, the support plate of the eye-protection table has a certain size, creating a certain learning area. The reading rack set at the end away from the user can maintain a suitable viewing distance. The raised reading distance can maintain the viewing distance and viewing angle. The hunched reading posture and the visual state of looking down the nose can affect the blood supply to the eyes and easily cause eye fatigue. The correct viewing distance can prevent the image from being too close, which will stimulate accommodation and cause the axial length of the eye to increase. The correct viewing distance can further help maintain the correct posture. The correct posture can further enhance the blood supply to the eyes and prevent eye fatigue.
[0041] Furthermore, in one embodiment, the infinitely adjustable reading stand 100 is detachably mounted on the support plate 5. When it needs to be moved or repositioned, the reading stand can be easily detached from the support plate 5, making it more convenient to carry and eliminating the need to transport the entire multi-dimensional posture correction eye-protection table 200, saving space and effort. In addition, other accessories can be replaced when the user does not use the infinitely adjustable reading stand 100, thereby increasing the versatility of the multi-dimensional posture correction eye-protection table 200.
[0042] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A steplessly adjustable reading stand for use in a multi-dimensional posture-correcting eye-protection desk, characterized in that, include: Support section; The frame is rotatably mounted relative to the supporting part; A limiting assembly, located between the support portion and the frame, includes a first limiting portion and a second limiting portion that cooperate with each other. The first limiting portion is disposed on the support portion, and the second limiting portion is disposed on the frame. In its natural state, the first limiting part and the second limiting part are always in contact to restrict the frame from rotating relative to the support part; and when subjected to external force, the first limiting part and the second limiting part disengage to allow the frame to rotate relative to the support part.
2. The infinitely adjustable reading stand as described in claim 1, characterized in that, Two limiting components are provided, and the two limiting components are respectively provided at both ends of the support.
3. The infinitely adjustable reading stand as described in claim 1, characterized in that, The support includes a support rod and a connecting seat. The connecting seat is used to install on the multi-dimensional posture correction eye protection platform. The support rod includes a first end and a second end that are disposed opposite to each other. The first end of the support rod is rotatably disposed with the connecting seat, and the second end of the support rod cooperates with the frame through a limiting component.
4. The infinitely adjustable reading stand as described in claim 3, characterized in that, The infinitely adjustable reading rack also includes a damping structure, which is disposed between the first end of the support rod and the connecting seat.
5. The infinitely adjustable reading stand as described in claim 1, characterized in that, The limiting component further includes a retainer. The first limiting part includes a first toothed ring, and the second limiting part includes a second toothed ring. The first toothed ring is disposed on the support part, and the second toothed ring is disposed on the frame. The first toothed ring and the second toothed ring mesh with each other, and the retainer is used to keep the first toothed ring and the second toothed ring meshed at all times.
6. The infinitely adjustable reading stand as described in claim 1 or 5, characterized in that, The support portion is provided with a first mounting cavity, and the frame body is provided with a second mounting cavity. The second mounting cavity is coaxially arranged with the first mounting cavity and communicates with it. The first limiting portion is installed in the first mounting cavity, and the second limiting portion is movably disposed in the second mounting cavity.
7. The infinitely adjustable reading stand as described in claim 6, characterized in that, The limiting component further includes a retainer. The first limiting part includes a first toothed ring, and the second limiting part includes a second toothed ring. The first toothed ring is disposed on the support part, and the second toothed ring is disposed on the frame. The first toothed ring and the second toothed ring mesh with each other, and the retainer is used to keep the first toothed ring and the second toothed ring meshed at all times. A sliding groove is provided on the inner side of the second mounting cavity, and a sliding part is provided on the outer side wall of the second limiting part. The sliding part is movably disposed in the sliding groove, and the retaining member is disposed between the second mounting cavity and the second limiting part.
8. The infinitely adjustable reading stand as described in claim 6, characterized in that, The limiting component further includes a retainer. The first limiting part includes a first toothed ring, and the second limiting part includes a second toothed ring. The first toothed ring is disposed on the support part, and the second toothed ring is disposed on the frame. The first toothed ring and the second toothed ring mesh with each other, and the retainer is used to keep the first toothed ring and the second toothed ring meshed at all times. The second gear ring includes an engaging portion and a mounting portion connected to each other. The engaging portion engages with the first gear ring, and the mounting portion forms a receiving cavity. The retaining member includes an elastic member disposed in the receiving cavity to provide elastic force to the second gear ring so as to engage with the first gear ring.
9. The infinitely adjustable reading stand as described in claim 8, characterized in that, The elastic element includes a spring, and the limiting assembly further includes a fixing element. The fixing element has limiting protrusions at both ends. One limiting protrusion of the fixing element is connected to the first toothed ring. The middle portion of the fixing element passes through the first toothed ring, the second toothed ring, and the spring. The other limiting protrusion of the fixing element is connected to the spring; or... Two limiting components are provided, each corresponding to one end of the support portion; the elastic element includes a spring, and the limiting components also include a fixing component, with limiting protrusions at both ends of the fixing component, one of the limiting protrusions of the fixing component being connected to one of the springs, the middle portion of the fixing component passing through two first toothed rings, two second toothed rings, and the spring, and the other limiting protrusion of the fixing component being connected to another spring.
10. A multi-dimensional posture-correcting eye protection table, characterized in that, include: Support plate; A steplessly adjustable reading stand, wherein the steplessly adjustable reading stand is as described in any one of claims 1 to 9, and the support portion is connected to the support plate.