Child tablet computer protective sleeve with blue light filtering function
By designing a children's tablet case with blue light filtering, utilizing rubber and magnetic adsorption plates, a stainless steel support frame, and an adjustable shoulder strap, the problem of existing cases being unable to filter blue light, having complex installation, and insufficient support is solved. This achieves convenient installation, stable support, and portability, improving user experience and eye protection.
Patent Information
- Application Number
- CN202520538222.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing tablet cases for children cannot effectively filter blue light, are complicated to install and remove, and lack support and portability, making it difficult to meet the diverse usage needs of children.
A protective case for children's tablets with blue light filtering function has been designed. The case, handle, and blue light filter plate are made of rubber and are positioned for installation. The case uses a magnetic adsorption plate and a stainless steel support frame, combined with an adjustable shoulder strap, to achieve convenient installation and replacement, providing stable support and portability.
It effectively filters blue light, simplifies installation and replacement, provides stable support and easy portability, enhances user experience, protects children's vision health, and adapts to diverse usage scenarios.
Smart Images

Figure CN223897823U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tablet computer accessory technical field, concretely relates to a child tablet computer protective sheath with blue light filtering function. BACKGROUND
[0002] In the digital era, tablet computers have become an important tool for children's learning and leisure with rich educational resources and entertainment functions. However, the blue light emitted from the screen during long-term use of the tablet computer can pose a threat to the eyes of children which have not yet developed maturely.
[0003] At present, most of the child tablet computer protective sheaths on the market have relatively single functions, mainly focusing on protecting the shell of the tablet computer to prevent physical damage such as scratching and collision during use, but cannot filter blue light and reduce the damage of blue light to children's eyes. The installation and disassembly process of some devices with blue light filtering function is complicated, which greatly reduces the user experience. In addition, with the diversification of children's activity scenes, the existing protective sheaths also have deficiencies in support and portability. For example, when children use tablet computers outdoors, the existing protective sheaths cannot provide stable support; when carrying the tablet computer, there is also a lack of convenient carrying design, which is difficult to meet the diversified use needs of children. Therefore, it is an urgent need in the market to develop a child tablet computer protective sheath with blue light filtering function, convenient installation and disassembly, and consideration of support and portability. SUMMARY
[0004] To solve the above problems, especially for the deficiencies of the prior art, the utility model provides a child tablet computer protective sheath with blue light filtering function can solve the above problems.
[0005] To achieve the above purpose, the utility model adopts the following technical means:
[0006] A child tablet computer protective sheath with blue light filtering function, comprising a protective sheath, a plurality of first adsorption plates are embedded and connected on the front and back sides of the protective sheath, an installation groove is formed on the back side of the protective sheath, a rotating block is rotatably connected in the installation groove, a support frame capable of being embedded in the installation groove is rotatably connected to the rotating block, handles are connected to the transverse sides of the protective sheath, a blue light filtering plate positioning and installing sleeve body one is hingedly connected to the longitudinal side of the protective sheath, a blue light filtering plate positioning and installing sleeve body two is connected to the side of the blue light filtering plate positioning and installing sleeve body one away from the protective sheath through a fixing wire, a blue light filtering plate is inserted between the blue light filtering plate positioning and installing sleeve body one and the blue light filtering plate positioning and installing sleeve body two, second adsorption plates corresponding to the first adsorption plates are embedded and connected on the front and back sides of the blue light filtering plate positioning and installing sleeve body one and the blue light filtering plate positioning and installing sleeve body two, and the second adsorption plates are adsorbed and connected with the corresponding first adsorption plates.
[0007] The further scheme of the utility model is that the protective sleeve, the handle, the blue light filter plate positioning and installing sleeve body one and the blue light filter plate positioning and installing sleeve body two are all rubber products.
[0008] The further scheme of the utility model is that the protective sleeve and the handle are integrally made.
[0009] The further scheme of the utility model is that one side of the opening of the protective sleeve is provided with a camera opening groove, and the other side of the opening of the protective sleeve is provided with a key opening groove.
[0010] The further scheme of the utility model is that the first adsorption plate and the second adsorption plate are both magnetic products.
[0011] The further scheme of the utility model is that the support frame and the rotating block are both stainless steel products.
[0012] The further scheme of the utility model is that the middle part of the handle is provided with a mounting hole, the mounting hole is detachably connected with a buckle, and the buckles of the two handles are connected through a shoulder strap.
[0013] The further scheme of the utility model is that the shoulder strap is an adjustable single shoulder strap.
[0014] The further scheme of the utility model is that the area of the blue light filter plate is greater than the opening area of the protective sleeve.
[0015] The utility model has the advantages of the following:
[0016] 1. The utility model can protect children's vision. The blue light filter plate can effectively filter the blue light emitted by the tablet computer screen, reduce the harm of blue light to children's eyes, prevent eye fatigue, dryness, vision decline and macular degeneration and other eye diseases caused by long-term use of the tablet computer, and build a strong defense line for children's vision health.
[0017] 2. The utility model can be conveniently installed and replaced. The blue light filter plate positioning and installing sleeve body one and the blue light filter plate positioning and installing sleeve body two are connected through the fixing wire. Only the fixing wire needs to be twisted, and the sleeve body can be easily opened or closed, the installation and replacement of the blue light filter plate are realized, the operation is simple and convenient, and the user experience is greatly improved.
[0018] 3. The utility model has multifunctional protection. The protective sleeve can buffer the impact force received by the tablet computer, prevent the screen and the machine body from being damaged due to collision, and the first adsorption plate embedded on the front and back sides of the protective sleeve and the second adsorption plate on the blue light filter plate positioning and installing sleeve body cooperate with each other. When the blue light filter plate is not used, the sleeve body can be stored on the side surface of the protective sleeve, and the protection and neat storage effects are achieved.
[0019] 4, The utility model has stable support. The support frame in the mounting groove of the rear side of the protective sleeve can be turned out and the angle is adjusted through the rotating block, and the use demand of children in different scenes is met.
[0020] 5, The utility model conveniently carries. The handle design of the transverse two sides of the protective sleeve is convenient for children to grip, and the tablet computer is conveniently carried out, and the diversified activity scene demand of children is met. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 The structure of the utility model is shown Figure 1 ;
[0022] Figure 2 The structure of the utility model is shown Figure 2 ;
[0023] Figure 3 The structure of the utility model is shown Figure 3 ;
[0024] Figure 4 It is the sectional view of blue light filter plate positioning installation sleeve body one and blue light filter plate positioning installation sleeve body two of the utility model;
[0025] Reference signs:
[0026] Protective sleeve 1, camera opening groove 2, first adsorption plate 3, button opening groove 4, mounting groove 5, support frame 6, rotating block 7, handle 8, mounting hole 9, buckle 10, shoulder strap 11, blue light filter plate positioning installation sleeve body one 12, blue light filter plate 13, blue light filter plate positioning installation sleeve body two 14, fixed wire 15, second adsorption plate 16. DETAILED DESCRIPTION
[0027] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.
[0028] Embodiment 1
[0029] As Figures 1 to 4As shown, a child tablet computer protective cover with blue light filtering function includes a protective cover 1, a plurality of first adsorption plates 3 are embedded and connected on the front and back of the protective cover 1 respectively, an installation groove 5 is formed on the back of the protective cover 1, a rotating block 7 is rotatably connected in the installation groove 5, a support frame 6 capable of being embedded in the installation groove 5 is rotatably connected with the rotating block 7, handles 8 are connected on the transverse sides of the protective cover 1 respectively, a blue light filtering plate positioning and installing sleeve body one 12 is hingedly connected on the longitudinal side of the protective cover 1, a blue light filtering plate positioning and installing sleeve body two 14 is connected with the blue light filtering plate positioning and installing sleeve body one 12 through a fixing wire 15 away from the side of the protective cover 1, a blue light filtering plate 13 is inserted between the blue light filtering plate positioning and installing sleeve body one 12 and the blue light filtering plate positioning and installing sleeve body two 14, second adsorption plates 16 corresponding to the first adsorption plates 3 are embedded and connected on the front and back of the blue light filtering plate positioning and installing sleeve body one 12 and the blue light filtering plate positioning and installing sleeve body two 14 respectively, and the second adsorption plates 16 are adsorptively connected with the corresponding first adsorption plates 3.
[0030] Working principle
[0031] Blue light filtering principle: when children use tablet computers, the blue light filtering plate 13 is located in front of the screen. The blue light filtering plate 13 selectively absorbs and reflects the light emitted by the screen. By changing the wavelength and intensity of the light, most of the harmful blue light is effectively filtered out, making the light entering the child's eyes softer and reducing the stimulation and damage of blue light to the eyes.
[0032] Installation and storage principle: the blue light filtering plate positioning and installing sleeve body one 12 is hingedly connected on the longitudinal side of the protective cover 1, and is connected with the blue light filtering plate positioning and installing sleeve body two 14 through the fixing wire 15. When installing the blue light filtering plate 13, loosen the fixing wire 15, open the two sleeve bodies, insert the blue light filtering plate 13 into the reserved slot, and then tighten the fixing wire 15 to complete the installation. When the blue light filtering plate 13 is not needed, rotate the blue light filtering plate positioning and installing sleeve body around the hinge point, so that the second adsorption plates 16 on the front and back of the sleeve body adsorb with the first adsorption plates 3 on the front and back of the protective cover 1, thereby storing the blue light filtering plate positioning and installing sleeve body on the side of the protective cover 1.
[0033] Supporting principle: in the installation groove 5 on the back of the protective cover 1, the rotating block 7 is connected with the support frame 6. When the tablet computer needs to be supported, the support frame 6 is taken out from the installation groove 5, the rotating block 7 can adjust the distribution position of the support frame 6, and the support frame 6 can be rotated to adjust the inclination angle of the support frame 6, so as to adapt to different scenes and viewing needs.
[0034] Protection and portability principle: when the tablet computer is accidentally collided, the protective cover 1 can absorb and disperse the impact force to avoid direct damage to the screen and the body. The handles 8 on the transverse sides of the protective cover 1 can be easily gripped by children, whether holding the tablet computer for operation or carrying it out, it can be more convenient and stable.
[0035] Example 2
[0036] like Figures 1 to 4 As shown, a protective case for a children's tablet computer with blue light filtering function includes a protective case 1. Multiple sets of first adsorption plates 3 are respectively embedded and connected to the front and back sides of the protective case 1. An installation groove 5 is opened on the back side of the protective case 1. A rotating block 7 is rotatably connected in the installation groove 5. A support frame 6 that can be embedded in the installation groove 5 is rotatably connected to the rotating block 7. Handles 8 are respectively connected to the horizontal sides of the protective case 1. A blue light filter plate positioning and installation sleeve body 12 is hinged to one side of the protective case 1. A blue light filter plate positioning and installation sleeve body 2 14 is connected to the side of the blue light filter plate positioning and installation sleeve body 12 away from the protective case 1 through a fixing screw 15. A blue light filter plate 13 is inserted between the blue light filter plate positioning and installation sleeve body 12 and the blue light filter plate positioning and installation sleeve body 2 14. Second adsorption plates 16 corresponding to the first adsorption plates 3 are respectively embedded and connected to the front and back sides of the blue light filter plate positioning and installation sleeve body 12 and the blue light filter plate positioning and installation sleeve body 2 14. The second adsorption plates 16 are adsorbed and connected to the corresponding first adsorption plates 3.
[0037] Protective cover 1, handle 8, blue light filter plate positioning and installation sleeve one 12, and blue light filter plate positioning and installation sleeve two 14 are all made of rubber.
[0038] The advantages of the above settings are:
[0039] Excellent flexibility and cushioning: Rubber's excellent flexibility allows it to adapt to tablets of different shapes and sizes, fitting snugly around the tablet for all-around protection. Simultaneously, rubber's cushioning properties effectively absorb external impacts. When the tablet is accidentally dropped or bumped, the protective case 1, blue light filter mounting sleeve 12, and blue light filter mounting sleeve 2 14 act as a buffer, reducing damage to the tablet and blue light filter 13 and lowering the risk of damage. The rubber material of the handle 8 also provides some cushioning when gripping, making it more comfortable for children to hold.
[0040] Excellent anti-slip performance: The rubber surface has a certain degree of roughness and friction, which, as protective cover 1, prevents the tablet from slipping from children's hands; as handle 8, the anti-slip effect of the outer surface allows children to grip more firmly, making it convenient to carry the tablet, and ensuring stability of the grip even in wet or sweaty conditions. For the blue light filter positioning and installation covers 1 and 2, the anti-slip properties of the rubber material help them remain stable during installation and use, and are not easily slipped or displaced due to accidental touch.
[0041] Wear and corrosion resistance: Rubber has good wear resistance, resisting friction and scratches during daily use, extending the service life of the protective cover 1, handle 8, and blue light filter plate positioning and installation cover. At the same time, rubber has a certain degree of corrosion resistance to some common chemicals, and is not easily corroded by sweat, grease, dust, etc., maintaining the product's performance and appearance.
[0042] The protective cover 1 and the handle 8 are made as one piece.
[0043] The advantages of the above settings are:
[0044] Enhanced structural stability: The integrated protective case 1 and handle 8 are seamlessly integrated, significantly increasing overall structural strength. This allows the product to better withstand the weight of the tablet and external forces such as tension and torque encountered during use. Compared to a modular design, it greatly reduces the likelihood of breakage or loosening at the connection between the handle 8 and the protective case 1, significantly extending the product's lifespan.
[0045] Enhanced Water Resistance: The absence of seams significantly reduces the channels through which water can enter the case, thus dramatically improving its water resistance. Whether used in humid environments or accidentally exposed to water, the unibody design better prevents water penetration, reducing the risk of water damage to the tablet.
[0046] A camera opening slot 2 is provided on one side of the opening of the protective cover 1, and a button opening slot 4 is provided on the other side of the opening of the protective cover 1.
[0047] The advantages of the above settings are:
[0048] Maintaining Device Functionality: The camera opening slot 2 ensures that the camera remains functional even with a protective case installed, allowing children to take photos, record videos, or make video calls without the case interfering with the camera's capabilities. Similarly, the button opening slot 4 ensures that the tablet's buttons, such as the power and volume buttons, can be pressed normally, allowing users to easily perform routine operations like powering on / off and adjusting volume, thus maintaining the tablet's functionality and ease of use.
[0049] Protecting critical parts of the device: Protective Case 1 protects the tablet's main body while using specially designed openings and slots to avoid obstructing the camera and buttons, and also protects other parts of the device from scratches, impacts, and other damage. This provides comprehensive protection for the device without affecting its normal functionality.
[0050] Enhanced user experience: The precise cutout design makes it easier for users to access the camera and buttons without frequently removing the protective case, reducing the risk of wear and tear on the case or the tablet slipping during disassembly. It also ensures accurate and smooth operation, improving the overall user experience.
[0051] Enhancing product versatility: The design of the camera opening slot 2 and the button opening slot 4 allows the protective case to be used with different models of tablets. As long as the positions of the camera and buttons are relatively fixed, these opening slots can achieve compatibility with different devices, increasing the applicability of the protective case and improving the product's versatility and market competitiveness.
[0052] Both the first adsorption plate 3 and the second adsorption plate 16 are magnetic products.
[0053] The advantages of the above settings are:
[0054] Easy to fix and connect: Utilizing the magnetic adsorption effect, the first adsorption plate 3 and the second adsorption plate 16 can easily adsorb the parts that need to be fixed together, such as fixing the blue light filter plate and other parts firmly in a specific position, without the need for complicated mechanical connection devices or glue, etc. The operation is simple and convenient, and it is also easy to separate when it is necessary to disassemble or replace the parts.
[0055] Precise positioning: Magnetic adsorption has a certain directionality and positioning ability, which can accurately position the adsorbed parts in the predetermined position, ensuring the accuracy and consistency of the installation of blue light filter plates, etc., avoiding misalignment or improper installation, and helping to improve the overall performance and stability of the product.
[0056] Reusable: The magnetic adsorption force will not weaken significantly with repeated use. The first adsorption plate 3 and the second adsorption plate 16 can be used repeatedly to adsorb and separate parts multiple times, unlike some disposable connection methods that need to be replaced after one use. This reduces the cost of use and is more environmentally friendly.
[0057] Example 3
[0058] like Figures 1 to 4As shown, a protective case for a children's tablet computer with blue light filtering function is characterized by comprising a protective case 1, with multiple sets of first adsorption plates 3 respectively embedded and connected to the front and rear sides of the protective case 1, an installation groove 5 is provided on the rear side of the protective case 1, a rotating block 7 is rotatably connected in the installation groove 5, and a support frame 6 that can be embedded in the installation groove 5 is rotatably connected to the rotating block 7, handles 8 are respectively connected to the horizontal sides of the protective case 1, a blue light filter plate positioning and installation sleeve body 12 is hinged to one side of the protective case 1, a blue light filter plate positioning and installation sleeve body 2 14 is connected to the side of the blue light filter plate positioning and installation sleeve body 12 away from the protective case 1 by a fixing wire 15, a blue light filter plate 13 is inserted between the blue light filter plate positioning and installation sleeve body 12 and the blue light filter plate positioning and installation sleeve body 2 14, and a second adsorption plate 16 corresponding to the first adsorption plate 3 is respectively embedded and connected to the front and rear sides of the blue light filter plate positioning and installation sleeve body 12 and the blue light filter plate positioning and installation sleeve body 2 14, and the second adsorption plate 16 is adsorbed and connected to the corresponding first adsorption plate 3.
[0059] Both the support frame 6 and the rotating block 7 are made of stainless steel.
[0060] The advantages of the above settings are:
[0061] High strength and durability: Stainless steel has high strength and hardness, capable of withstanding the weight of the tablet and various external forces generated during use, and is not easily deformed or damaged. This allows the support frame 6 and the rotating block 7 to stably support the tablet for a long time, ensuring the product's lifespan.
[0062] Excellent corrosion resistance: Stainless steel has excellent corrosion resistance, resisting the erosion of oxygen, moisture in the air, and some chemicals that may be encountered in daily use, and is not prone to rusting. Even in humid environments or after prolonged use, it can maintain a clean appearance and stable performance, and its function and aesthetics will not be affected by rusting.
[0063] Stability and Reliability: The high density of stainless steel provides excellent stability to the support frame 6 and the rotating block 7. This ensures reliable support for the tablet, preventing it from wobbling or tipping over. Simultaneously, the stainless steel material of the rotating block 7 guarantees its flexibility and stability during rotation, allowing users to easily adjust the tablet's angle without experiencing loosening or jamming during use.
[0064] The handle 8 has a mounting hole 9 in the middle, and a buckle 10 is detachably connected to the mounting hole 9. The buckles 10 of the two sets of handles 8 are connected by a shoulder strap 11.
[0065] The advantages of the above settings are:
[0066] Easy to carry: The shoulder strap 11 is connected to the handle 8 via the buckle 10, allowing children to hang the tablet on their shoulder, freeing their hands and making it easy to carry the tablet in scenarios such as walking and outdoor activities, reducing the risk of the tablet falling due to hand holding.
[0067] Improved ease of use: The buckle 10 and the mounting hole 9 are detachably connected. When the shoulder strap 11 is not needed, it can be easily removed without affecting the other functions of the handle 8. When a tablet computer needs to be carried, the shoulder strap 11 can be quickly installed, flexibly meeting the usage needs of different scenarios.
[0068] Enhanced safety: The shoulder strap 11 can secure the tablet to a child's body, effectively preventing the tablet from falling and breaking due to accidental collisions or the child's slipping during activities, providing additional safety for the tablet.
[0069] Reduced burden: For children, holding a tablet for a long time can be tiring. The shoulder strap 11 distributes the weight of the tablet to the shoulder and body, reducing the burden on the hands and making it easier for children to carry the tablet, reducing discomfort caused by holding it for a long time.
[0070] Personalization and versatility: The detachable buckle 10 and shoulder strap 11 allow users to change the shoulder strap to different colors and styles according to their preferences, achieving personalized decoration. In addition, the shoulder strap 11 can be used in multiple ways, such as wearing a tablet crossbody or adjusting the shoulder strap length according to the child's height and usage habits, increasing the product's versatility and applicability.
[0071] Shoulder strap 11 is an adjustable single shoulder strap.
[0072] The advantages of the above settings are:
[0073] Adaptable to different heights and body types: Children vary greatly in height and body type. The adjustable shoulder strap can be flexibly adjusted in length according to the different body characteristics of children to ensure that the shoulder strap is comfortable to wear. It is neither too long, causing the tablet to shake, nor too short, causing a strong feeling of pressure on the shoulders.
[0074] Meets different wearing needs: The adjustable feature allows children to choose different wearing methods according to their own habits and specific usage scenarios, such as wearing it across one shoulder or hanging it straight on one shoulder, to obtain the most comfortable and convenient wearing experience.
[0075] Improve user comfort: By adjusting the shoulder strap length, the tablet can be positioned appropriately, reducing the burden on the shoulders and back, avoiding discomfort caused by shoulder straps that are too long or too short, and minimizing adverse effects on children's physical development.
[0076] Enhanced product versatility: The adjustable shoulder strap allows the protective case to be suitable for children of different ages. As children grow, the shoulder strap length can be adjusted for continued use, extending the product's lifespan and improving its versatility and cost-effectiveness.
[0077] Convenient for storage and carrying: When not in use, the shoulder strap can be adjusted to its shortest length for easy storage and to reduce space occupation. It is also convenient to carry and is less likely to get tangled or lost during carrying due to the shoulder strap being too long.
[0078] The area of the blue light filter plate 13 is larger than the opening area of the protective sleeve 1.
[0079] The advantages of the above settings are:
[0080] Comprehensive Blue Light Filtering: The larger blue light filter panel 13 can cover most of the blue light emitted by the tablet screen, more effectively reducing the harm of blue light to children's eyes. Compared to a filter panel that is only the size of the screen, it can filter blue light comprehensively from the edge of the screen to the center, providing more comprehensive vision protection for children.
[0081] To prevent light leakage: The opening area of the protective case 1 is smaller than that of the blue light filter plate 13, which can prevent light leakage at the edges due to the filter plate being installed inside the protective case. Even when viewing the tablet from different angles, it can ensure that blue light is fully filtered and no unfiltered blue light will shine into children's eyes from the edge of the opening of the protective case.
[0082] The examples provided in this utility model are not intended to limit the implementation methods. Those skilled in the art will recognize that various variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.
Claims
1. A protective case for children's tablets with blue light filtering function, characterized in that, The system includes a protective sleeve (1), with multiple sets of first adsorption plates (3) embedded and connected to the front and rear sides of the protective sleeve (1). A mounting groove (5) is provided on the rear side of the protective sleeve (1), and a rotating block (7) is rotatably connected within the mounting groove (5). A support frame (6) that can be embedded within the mounting groove (5) is rotatably connected to the rotating block (7). Handles (8) are connected to the horizontal sides of the protective sleeve (1), and a blue light filter positioning and mounting sleeve (12) is hinged to one longitudinal side of the protective sleeve (1). A blue light filter plate positioning and mounting sleeve two (14) is connected to the side away from the protective sleeve (1) by a fixing wire (15). A blue light filter plate (13) is inserted between the blue light filter plate positioning and mounting sleeve one (12) and the blue light filter plate positioning and mounting sleeve two (14). A second adsorption plate (16) corresponding to the first adsorption plate (3) is respectively embedded and connected to the front and rear sides of the blue light filter plate positioning and mounting sleeve one (12) and the blue light filter plate positioning and mounting sleeve two (14). The second adsorption plate (16) is adsorbed and connected to the corresponding first adsorption plate (3).
2. A protective case for children's tablets with blue light filtering function according to claim 1, characterized in that, The protective sleeve (1), handle (8), blue light filter plate positioning and installation sleeve one (12), and blue light filter plate positioning and installation sleeve two (14) are all made of rubber.
3. A protective case for children's tablets with blue light filtering function according to claim 2, characterized in that, The protective cover (1) and the handle (8) are made as a single piece.
4. A protective case for children's tablets with blue light filtering function according to claim 3, characterized in that, The protective sleeve (1) has a camera opening slot (2) on one side of the opening and a button opening slot (4) on the other side of the opening.
5. A protective case for children's tablets with blue light filtering function according to claim 1, characterized in that, Both the first adsorption plate (3) and the second adsorption plate (16) are magnetic products.
6. A protective case for children's tablets with blue light filtering function according to claim 1, characterized in that, Both the support frame (6) and the rotating block (7) are made of stainless steel.
7. A protective case for children's tablets with blue light filtering function according to claim 1, characterized in that, The handle (8) has a mounting hole (9) in the middle, and a buckle (10) is detachably connected to the mounting hole (9). The buckles (10) of the two sets of handles (8) are connected by a shoulder strap (11).
8. A protective case for children's tablets with blue light filtering function according to claim 7, characterized in that, The shoulder strap (11) is an adjustable single shoulder strap.
9. A protective case for children's tablets with blue light filtering function according to claim 1, characterized in that, The area of the blue light filter plate (13) is larger than the opening area of the protective sleeve (1).