Magnetic chest buckle of child safety seat
By designing a magnetic chest buckle for child safety seats, the problem of shoulder slippage for slender children is solved by using magnetic attraction and pressing components. This enables quick installation of the seat belt and prevents accidental opening, thus improving the safety of children riding in cars.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王潇
- Filing Date
- 2025-06-15
- Publication Date
- 2026-05-19
AI Technical Summary
Children with a slender build are prone to their shoulders slipping off the five-point harness, posing a safety hazard.
Design a magnetic chest buckle for a child safety seat. By using the attraction of magnets on the left and right chest buckles and the cooperation of pressing components, the seat belt is fixed and designed to prevent accidental opening, ensuring that the seat belt is in the correct position.
It enables quick installation of seat belts and prevents accidental disengagement by children, ensuring that the seat belts are fixed in the correct position, preventing children from escaping, and improving the safety of children riding in vehicles.
Smart Images

Figure CN224250855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a fastener, and more particularly to a magnetic chest buckle for a child safety seat. Background Technology
[0002] Currently, child safety seats need to be ergonomically designed to fit the physical characteristics of children at different ages, ensuring exceptional comfort and a snug fit. Furthermore, based on principles of child psychology, child safety seats utilize appropriate materials, patterns, and shapes to provide children with a sense of security and being surrounded by safety. At the same time, the seats are raised by more than ten centimeters, giving children a wider field of vision and making car journeys less boring and tedious.
[0003] Current child safety seats use five-point harnesses, but for slender children, the shoulders can easily slip out of the harness, making them prone to slipping off during braking and posing a danger. Therefore, a chest buckle is needed to further secure the harness and provide additional safety for children. Summary of the Invention
[0004] This utility model provides a magnetic chest buckle for a child safety seat, which solves the problem that the shoulders of slender children easily slip off the five-point harness. The technical solution is as follows:
[0005] A magnetic chest buckle for a child safety seat includes a left chest buckle, a right chest buckle, a cover, a pressing component, and a slider. Both the left and right chest buckles have perforated edges on their upper and lower sides. The left chest buckle has a receiving groove for holding a first magnet, and the right chest buckle has a receiving post for holding a second magnet. The receiving post abuts against the rear side of the receiving groove, and the slider engages the slots on both sides of the receiving post. The left and right sides of the receiving groove have sliding tracks for holding the slider, and a pressing component is installed around the perimeter. When the upper and lower sides of the pressing component are pressed, it pushes the slider away from the receiving post. The front side of the receiving groove is covered by the cover.
[0006] The upper side of the left breast buckle is provided with a first locking edge, and the first locking edge is provided with a first through hole; the lower side of the left breast buckle is provided with a second locking edge, and the second locking edge is provided with a second through hole; the upper side of the right breast buckle is provided with a third locking edge, and the third locking edge is provided with a third through hole; the lower side of the right breast buckle is provided with a fourth locking edge, and the fourth locking edge is provided with a fourth through hole.
[0007] The left breast buckle has an extended left platform on its right side, and a receiving groove in the middle of the left platform. The four corners of the receiving groove are fixed to the left platform by connecting legs, and there are gaps between adjacent connecting legs. The right breast buckle has a right platform on its left side, and a receiving post in the middle of the right platform.
[0008] The slider includes a left slider and a right slider. A third magnet is placed inside the left slider, and a fourth magnet is placed inside the right slider.
[0009] The slider is provided with a locking protrusion that passes through the gap between the connecting legs and can lock into the slot that accommodates the column.
[0010] The left platform is provided with fixing grooves around its perimeter. A limiting support rod is provided on the side of the fixing groove near the receiving groove. The four corners of the cover are provided with buckles, which are fastened to the fixing grooves around the left platform.
[0011] The pressing component includes an end face and an elastic edge. The end face includes an upper end face and a lower end face. The elastic edge includes a left elastic edge and a right elastic edge, which are formed by connecting the upper end face, the left elastic edge, the lower end face and the right elastic edge in sequence. The upper end face and the lower end face are provided with lugs on their left and right sides, and an elastic element that abuts against the side of the receiving groove is provided in the middle.
[0012] A limiting groove is provided on the side of the slide away from the receiving groove, and the elastic edge of the pressing component is provided with a pin that mates with the limiting groove.
[0013] The upper and lower end faces are also provided with pushing ends for squeezing between the slider and the receiving groove, pushing the slider away from the receiving groove; a first pushing end is provided on the left side of the upper end face, and a second pushing end is provided on the right side of the lower end face.
[0014] The rear side of the receiving column is sealed by a snap fastener to prevent the second magnet from falling out.
[0015] The magnetic chest buckle of the child safety seat has the following advantages: (1) The left and right chest buckles can be operated quickly and conveniently with one or two hands; (2) The left and right chest buckles are attracted by the first and second magnets to achieve magnetic opening and closing; (3) The press component realizes the anti-accidental opening design, which can prevent children from accidentally opening and is convenient for adult users to open; (4) By installing it on the child safety seat's seat belt, the seat belt can be fixed in the correct position to prevent children from escaping the seat belt; (5) The upper and lower sides of the left and right chest buckles are provided with perforated edges, and the perforations can be made into an S-shape, making it convenient to install the seat belt without removing it; (6) The perforation design is reasonable, and it can prevent slipping after the seat belt is put on and will not move randomly. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the magnetic chest buckle of the child safety seat;
[0017] Figure 2 This is a schematic diagram of the separate structure of the magnetic chest buckle of the child safety seat;
[0018] Figure 3 This is an exploded structural diagram of the magnetic chest buckle of the child safety seat;
[0019] Figure 4 This is an exploded top view of the magnetic chest buckle of the child safety seat;
[0020] Figure 5 This is a schematic diagram of the structure of the left breast button;
[0021] Figure 6 This is a schematic diagram of the structure of the right breast buckle;
[0022] Figure 7 This is a schematic diagram of the structure of the pressing component;
[0023] Figure 8 This is a schematic diagram of the structure of the cover;
[0024] Figure 9 This is a side view of the cover.
[0025] Figure 10 This is a schematic diagram of the slider. Detailed Implementation
[0026] like Figures 1 to 4 As shown, the magnetic chest buckle of the child safety seat includes a left chest buckle 1, a right chest buckle 2, a cover 3, a pressing component 4, and a slider. Both the left chest buckle 1 and the right chest buckle 2 have perforated edges on their upper and lower sides. The left chest buckle 1 has a receiving groove 15 for holding a first magnet, and the right chest buckle 2 has a receiving post 25 for holding a second magnet. The receiving post 25 can abut against the rear side of the receiving groove 15, and after abutting, the slots on both sides of the receiving post 25 can be locked by the slider. The left and right sides of the receiving groove 15 have slides for holding the slider, and the pressing component 4 is installed around its perimeter. When the upper and lower sides of the pressing component 4 are pressed, it can push the slider away from the receiving post 25. The front side of the receiving groove 15 is covered by the cover 3. The slider includes a left slider 5 and a right slider 6. The left slider 5 contains a third magnet, and the right slider 6 contains a fourth magnet. The rear side of the receiving post 25 is sealed by a pressing buckle 7 to prevent the second magnet from falling out.
[0027] The magnetic chest buckle for the child safety seat needs to be installed above the safety buckle of the child safety seat. The upper side of the left chest buckle 1 is provided with a first locking edge 11, and the first locking edge 11 is provided with a first through hole 12. The lower side of the left chest buckle 1 is provided with a second locking edge 13, and the second locking edge 13 is provided with a second through hole 14. The left side seat belt of the child safety seat can be locked through the first locking edge 11 and the second locking edge 13. The left side seat belt passes through the first through hole 12 into the first locking edge 11 and then passes through the second through hole 14 out of the second locking edge 13. Similarly, the upper side of the right chest buckle 2 is provided with a third locking edge 21, and the third locking edge 21 is provided with a third through hole 22; the lower side of the right chest buckle 2 is provided with a fourth locking edge 23, and the fourth locking edge 23 is provided with a fourth through hole 24; the right side seat belt of the child safety seat can be locked through the third locking edge 21 and the fourth locking edge 23, and the right side seat belt passes through the third through hole 22 into the third locking edge 21, and then passes through the fourth through hole 24 out of the fourth locking edge 23.
[0028] A left platform 10 extending from the right side of the left breast buckle 1 is provided. A receiving groove 15 is provided in the middle of the left platform 10. The four corners of the receiving groove 15 are fixed to the left platform 10 by connecting legs 19. There are gaps between adjacent connecting legs 19. The left slider 5 and the right slider 6 are provided with locking protrusions. The locking protrusions pass through the gaps and can lock the locking groove of the receiving post 25. A right platform 20 is provided on the left side of the right breast buckle 2. A receiving post 25 is provided in the middle of the right platform 20. When the receiving post 25 abuts against the rear side of the receiving groove 15, the receiving post 25 is located within the space formed by the connecting legs 19.
[0029] like Figure 5 As shown, the left platform 10 is provided with fixing grooves 16 around its perimeter. A limiting support rod 8 is provided on the side of the fixing groove 16 near the receiving groove 15, which is used to limit the position of the pressing component 4. A left slide rail 17 and a right slide rail 18 are respectively provided on the left and right sides of the left platform 10. The left slide rail 17 is used to place the left slider 5. A left limiting groove 9 is provided on the left side of the left slide rail 17, which is used to limit the position of the pressing component 4. The right slide rail 18 is used to place the right slider 6. A right limiting groove 9 (not shown in the figure) is provided on the right side of the right slide rail 18, which is used to limit the position of the pressing component 4.
[0030] like Figure 6 As shown, the receiving post 25 has slots on both its left and right sides, including a left slot 26 on the left and a right slot 27 on the right. When the front end of the receiving post 25 abuts against the rear side of the receiving groove 15, both the left slot 26 and the right slot 27 are exposed in the gap between adjacent connecting legs 19. In this way, the protrusion of the left slider 5 can lock the left slot 26, and the protrusion of the right slider 6 can lock the right slot 27.
[0031] like Figure 7 As shown, the pressing component 4 can be installed on the left platform 10 of the left breast buckle 1, surrounding the periphery of the receiving groove 15. The pressing component 4 includes an upper end face 41, a lower end face 42, a left elastic edge 43, and a right elastic edge 45, which are connected end to end in sequence to form a ring structure.
[0032] The upper end face 41 has first lugs 47 on its left and right sides, and the lower end face 42 has second lugs 48 on its left and right sides. These lugs, along with the limiting rod 8 on the left platform 10, allow the end of the limiting rod 8 to abut against either the first or second lugs 47, thus limiting the position of the pressing component 4 on its upper and lower sides. An upper elastic member 49 is located below the upper end face 41 to abut against the upper side of the receiving groove 15, and a lower elastic member 50 is located above the lower end face 42 to abut against the lower side of the receiving groove 15. The upper elastic member 49 and the lower elastic member 50 further limit the position of the pressing component 4 on its upper and lower sides. The left elastic edge 43 is provided with a left pin 44 in the middle for insertion into the left limiting groove 9 of the left slide 17; the right elastic edge 45 is provided with a right pin 46 in the middle for insertion into the right limiting groove of the right slide 18; the left pin 44 and the right pin 46 are used to limit the position of the left and right sides of the pressing component 4.
[0033] Furthermore, the pressing component 4 is also provided with a pushing end, which presses against the slider and the receiving groove 15, pushing the slider away from the receiving groove 15, thereby causing the slider's locking protrusion to leave the receiving post's locking groove. A first pushing end 51 is provided below the upper end face 41, and the first pushing end 51 is inserted between the left slider 5 and the receiving groove 15. A second pushing end 52 is provided above the lower end face, and the second pushing end 52 is inserted between the right slider 6 and the receiving groove 15. The first pushing end 51 and the second pushing end 52 are located on the left and right sides of the receiving groove 15, respectively.
[0034] like Figure 8 and Figure 9 As shown, the cover 3 has four corner clips 31, which fasten to the fixing grooves 16 around the left platform 10. These clips not only hold the first magnet in the receiving groove 15, preventing it from detaching, but also enhance the aesthetics. The brand logo can be printed on the front of the cover 3 for branding and advertising. An auxiliary slide 32 is provided on the rear side of the cover 3. This auxiliary slide 32 cooperates with the slide of the left platform 10 to hold the slider, allowing the slider to move within the space between the slide and the auxiliary slide. Furthermore, the auxiliary slide 32 is divided into left and right sections. The left section cooperates with the left slide 17, and the right section cooperates with the right slide 18.
[0035] like Figure 10 As shown, the left slider 5 and right slider 6 are symmetrically arranged. Taking the left slider 5 as an example, the left slider 5 includes a fixedly connected base 57 and a moving cavity 53. The base 57 has a locking protrusion 58 on the side near the receiving groove 15. The locking protrusion 58 is arc-shaped and matches the shape of the left locking groove 26 of the receiving post 25. The moving cavity 53 has a first receiving cavity 55 inside, which is used to place the third magnet. The upper end is fastened by a cover 3. The moving cavity 53 has a trapezoidal cross-section. A groove 54 is provided on the side near the receiving groove 15. The shape of the groove 54 matches the side of the receiving groove 15. The upper and lower ends of the groove 54 are rounded. The rounded ends cooperate with the pushing end of the pressing member 4. When the upper and lower ends of the pressing member 4 are pressed, the pushing end squeezes between the rounded ends and the receiving groove 15, pushing the left slider 5 away from the receiving groove 15, thereby causing the locking protrusion 58 of the left slider 5 to leave the left locking groove 26 of the receiving post 25. Similarly, the right slider 6 is provided with a second receiving cavity 56 for placing the fourth magnet.
[0036] In use, place the left chest buckle 1 on the left side of the child safety seat's seatbelt and the right chest buckle 2 on the right side of the child safety seat's seatbelt, with the left chest buckle 1 and right chest buckle 2 at the same height. Bring the left chest buckle 1 and right chest buckle 2 closer together using one or both hands. Then, the right platform 20 of the right chest buckle 2 is positioned behind the left platform 10 of the left chest buckle 1, causing the receiving post 25 to abut against the rear side of the receiving groove 15. At this time, the first magnet of the receiving groove 15 and the second magnet inside the receiving post 25 attract each other. Simultaneously, the second magnet attracts the third magnet of the left slider 5 and the fourth magnet of the right slider 6, causing the left slider 5 and right slider 6 to lock into the slot of the receiving post 25, thereby fixing the left chest buckle 1 and right chest buckle 2 in place.
[0037] When it is necessary to separate the left breast buckle 1 and the right breast buckle 2, press the upper and lower sides of the pressing component 4. The pushing end of the pressing component 4 will push the slider away from the receiving groove 15, so that the left slider 5 and the right slider 6 are no longer stuck in the groove of the receiving post 25. At this time, the right breast buckle 2 will be separated from the rear side of the left breast buckle 1, thus separating the right breast buckle 2 and the left breast buckle 1.
[0038] The present invention has the following advantages: (1) The left and right chest buckles can be operated quickly and conveniently with one or two hands; (2) The left and right chest buckles are attracted by the first and second magnets to achieve magnetic opening and closing; (3) The pressing component realizes the anti-accidental opening design, which can prevent children from accidentally opening and is convenient for adult users to open; (4) By installing on the seat belt of the child safety seat, the seat belt can be fixed in the correct position to prevent children from escaping the seat belt; (5) The upper and lower sides of the left and right chest buckles are provided with perforated edges, and the perforations can be made into S-shapes, making it convenient to install the seat belt without disassembling it; (6) The perforation design is reasonable, and the seat belt can be anti-slip after being put on, so it will not move randomly.
Claims
1. A magnetic chest buckle for a child safety seat, characterized in that: The device includes a left breast buckle, a right breast buckle, a buckle cover, a pressing component, and a slider. Both the left and right breast buckles have perforated edges on their upper and lower sides. The left breast buckle has a receiving groove for holding a first magnet, and the right breast buckle has a receiving post for holding a second magnet. The receiving post can abut against the rear side of the receiving groove, and after abutting, the slots on both sides of the receiving post can be locked by the slider. The left and right sides of the receiving groove have slides for holding the slider, and a pressing component is installed around it. When the upper and lower sides of the pressing component are pressed, it can push the slider away from the receiving post. The front side of the receiving groove is covered by the buckle cover.
2. The magnetic chest buckle for a child safety seat according to claim 1, characterized in that: The upper side of the left breast buckle is provided with a first locking edge, and the first locking edge is provided with a first through hole; the lower side of the left breast buckle is provided with a second locking edge, and the second locking edge is provided with a second through hole; the upper side of the right breast buckle is provided with a third locking edge, and the third locking edge is provided with a third through hole; the lower side of the right breast buckle is provided with a fourth locking edge, and the fourth locking edge is provided with a fourth through hole.
3. The magnetic chest buckle for a child safety seat according to claim 1, characterized in that: The left breast buckle has an extended left platform on its right side, and a receiving groove in the middle of the left platform. The four corners of the receiving groove are fixed to the left platform by connecting legs, and there are gaps between adjacent connecting legs. The right breast buckle has a right platform on its left side, and a receiving post in the middle of the right platform.
4. The magnetic chest buckle for a child safety seat according to claim 1, characterized in that: The slider includes a left slider and a right slider. A third magnet is placed inside the left slider, and a fourth magnet is placed inside the right slider.
5. The magnetic chest buckle for a child safety seat according to claim 1, characterized in that: The slider is provided with a locking protrusion that passes through the gap between the connecting legs and can lock into the slot that accommodates the column.
6. The magnetic chest buckle for a child safety seat according to claim 3, characterized in that: The left platform is provided with fixing grooves around its perimeter. A limiting support rod is provided on the side of the fixing groove near the receiving groove. The four corners of the cover are provided with buckles, which are fastened to the fixing grooves around the left platform.
7. The magnetic chest buckle for a child safety seat according to claim 1, characterized in that: The pressing component includes an end face and an elastic edge. The end face includes an upper end face and a lower end face. The elastic edge includes a left elastic edge and a right elastic edge, which are formed by connecting the upper end face, the left elastic edge, the lower end face and the right elastic edge in sequence. The upper end face and the lower end face are provided with lugs on their left and right sides, and an elastic element that abuts against the side of the receiving groove is provided in the middle.
8. The magnetic chest buckle for a child safety seat according to claim 7, characterized in that: A limiting groove is provided on the side of the slide away from the receiving groove, and the elastic edge of the pressing component is provided with a pin that mates with the limiting groove.
9. The magnetic chest buckle for a child safety seat according to claim 8, characterized in that: The upper and lower end faces are also provided with pushing ends for squeezing between the slider and the receiving groove, pushing the slider away from the receiving groove; a first pushing end is provided on the left side of the upper end face, and a second pushing end is provided on the right side of the lower end face.
10. The magnetic chest buckle for a child safety seat according to claim 1, characterized in that: The rear side of the receiving column is sealed by a snap fastener to prevent the second magnet from falling out.