The headrest height adjustment and side wing opening linkage mechanism and its child safety seat

Abstract

This application discloses a headrest height adjustment and side wing opening linkage mechanism and its child safety seat, including: a seat body, an adjustment part, and a headrest, the adjustment part and the headrest being movably mounted on the seat body; the adjustment part includes a side wing and a positioning part, the positioning part being located at the upper end of the side wing, the lower end of the side wing being hinged to the seat body; the positioning part is provided with a positioning block, a slider, and a track, the slider being inserted into the track and movably connected to the positioning part; the slider has a first protrusion and a second protrusion on the side near the side wing, the upper end of the side wing has a positioning hole that mates with the first protrusion; the headrest has a positioning groove that mates with the second protrusion. By setting the adjustment part and the headrest, moving the headrest can cause the second protrusion to move up and down along the positioning groove, so that the first protrusion is inserted into the positioning hole and drives the side wing to rotate, thereby realizing the linkage adjustment of the headrest and the side wing, improving the protective performance and adjustment convenience of the headrest height adjustment and side wing opening linkage mechanism.

Description

Technical Field

[0001] This application relates to the field of child safety seat technology, and in particular to a headrest height adjustment and side wing opening linkage mechanism and the child safety seat thereof. Background Technology

[0002] To ensure child safety while riding in a vehicle, child safety seats typically have a headrest located on the inside of the seat back. To accommodate children of different heights, a height adjustment mechanism is installed between the headrest and the seat back, allowing the headrest to be raised or lowered for better head protection. However, the linkage adjustment structure between the headrest and side wings in commercially available child safety seats suffers from complex structures and low adjustment precision. It cannot automatically adjust the distance between the side wings based on the headrest's position, thus affecting the protective performance and ease of adjustment of the child safety seat. Summary of the Invention

[0003] This application provides a headrest height adjustment and side wing opening linkage mechanism and a child safety seat thereof, which can adjust the distance between the two side wings in a linkage according to the headrest position, thereby improving the protective performance and adjustment convenience of the child safety seat.

[0004] In a first aspect, embodiments of this application provide a headrest height adjustment and side wing opening linkage mechanism, comprising: a seat body, an adjustment part, and a headrest, wherein the adjustment part and the headrest are movably disposed on the seat body; the adjustment part includes a side wing and a positioning part, the positioning part being located at the upper end of the side wing, and the lower end of the side wing being hinged to the seat body; the positioning part is provided with a slider and a track, the slider being inserted into the track and movably connected to the positioning part; the slider is provided with a first protrusion and a second protrusion on the side near the side wing, and the upper end of the side wing is provided with a positioning hole that mates with the first protrusion; the headrest is provided with a positioning groove that mates with the second protrusion, the distance from the positioning groove to the middle position of the headrest gradually increasing from top to bottom or remaining constant; the second protrusion moves up and down along the positioning groove, and the first protrusion is inserted into the positioning hole, causing the side wing to rotate.

[0005] The headrest height adjustment and side wing opening linkage mechanism of this application embodiment has at least the following beneficial effects: by setting an adjustment part and a headrest, the second protrusion can move up and down along the positioning groove by moving the headrest, so that the first protrusion can be inserted into the positioning hole to drive the side wing to rotate, thereby realizing the linkage adjustment of the headrest and the side wing, improving the protective performance and adjustment convenience of the headrest height adjustment and side wing opening linkage mechanism; by setting a side wing and a positioning part, the slider is inserted into the track and movably connected with the positioning part to stably push the side wing to rotate, thereby accurately adjusting the position of the side wing, improving the adjustment accuracy and structural stability of the headrest height adjustment and side wing opening linkage mechanism.

[0006] In some embodiments, the lower end of the side wing is provided with a base, and the side wing is movably connected to the seat body through the base. By providing the base, the connection flexibility between the side wing and the seat body is ensured, as well as the integrity and service life of the linkage mechanism between the headrest height adjustment and the side wing opening.

[0007] In some embodiments, the seat body is provided with a connecting block, the lower end of which is fixedly connected to the seat body, and the upper end of which is provided with a connecting post that mates with the base. By providing the connecting block and the connecting post, it is ensured that the side wing can be stably inserted into the base and hinged to the seat body via the connecting post, thereby ensuring the connection stability between the side wing and the seat body.

[0008] In some embodiments, the side wings are symmetrically arranged on both sides of the seat body. This structure ensures that the side wings on both sides of the headrest can be adjusted simultaneously, increasing the adjustment range of the side wings and improving the compatibility of the headrest height adjustment and side wing opening linkage mechanism.

[0009] In some embodiments, the slider is provided with a limiting block, and the slider is slidably connected to the positioning part by inserting into the track through the limiting block. By setting the limiting block, it is ensured that the slider can move stably along the track, avoiding displacement or falling off of the slider, and improving the working stability of the linkage mechanism between the headrest height adjustment and the side wing opening.

[0010] In some embodiments, a movable block is further provided between the slider and the positioning part, and the slider has a through hole that mates with the movable block. By providing the movable block and the through hole, the slider can be movably connected to the positioning part by inserting the movable block into the through hole, preventing the slider from falling off and improving the service life of the headrest height adjustment and side wing opening linkage mechanism.

[0011] In some embodiments, a spring is further provided between the movable block and the positioning part, with both ends of the spring abutting against the movable block and the positioning part, respectively. By providing the spring, the movable block can be stably abutted against the inner side of the slider, preventing the slider from falling and improving the stability of the headrest height adjustment and side wing opening linkage mechanism.

[0012] In some embodiments, the through hole includes a first hole and a second hole, and a slide rod and a plug are sequentially provided on the movable block; the plug is inserted into the first hole so that the slide rod is aligned with the second hole. By setting the first hole and the second hole, it is ensured that the slide rod can reciprocate along the second hole after the plug is inserted into the first hole, thereby improving the working stability of the slider.

[0013] In some embodiments, the positioning hole is oblong. This structure ensures that the side wing can rotate stably and accurately along the connection point with the seat body, improving the connection stability between the side wing and the seat body.

[0014] Secondly, embodiments of this application provide a child safety seat, including a headrest height adjustment and side wing opening linkage mechanism as described in the first aspect.

[0015] The headrest height adjustment and side wing opening linkage mechanism and child safety seat of this application embodiment have at least the following beneficial effects: By setting an adjustment part and a headrest, the second protrusion can move up and down along the positioning groove by moving the headrest, so that the first protrusion can be inserted into the positioning hole to drive the side wing to rotate, thereby realizing the linkage adjustment of the headrest and side wing, improving the protective performance and adjustment convenience of the child safety seat; By setting a side wing and a positioning part, the slider is inserted into the track and movably connected with the positioning part to stably push the side wing to rotate, thereby accurately adjusting the position of the side wing, improving the adjustment accuracy and structural stability of the child safety seat; By setting a base, the connection flexibility between the side wing and the seat body is ensured, ensuring the integrity and service life of the child safety seat; By setting a connecting block and a connecting column, the side wing can be stably inserted into the base through the connecting column and hinged to the seat body, thereby ensuring the connection stability between the side wing and the seat body; By setting a limiting block, the slider can move stably along the track, avoiding displacement or detachment of the slider, thereby improving the structural stability of the child safety seat.

[0016] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the headrest height adjustment and side wing opening linkage mechanism provided in one embodiment of this application;

[0018] Figure 2 This is an exploded view of the structure of the headrest height adjustment and side wing opening linkage mechanism provided in one embodiment of this application;

[0019] Figure 3 yes Figure 2 Enlarged view of the structure of the headrest;

[0020] Figure 4 This is an exploded view of the linkage mechanism for headrest height adjustment and side wing opening provided in another embodiment of this application;

[0021] Figure 5 yes Figure 4 Enlarged view of the structure of the central adjustment section;

[0022] Figure 6 This is an exploded view of the linkage mechanism for headrest height adjustment and side wing opening provided in another embodiment of this application;

[0023] Figure 7 This is a schematic diagram of the headrest height adjustment and side wing opening linkage mechanism provided in this application embodiment in the closed state;

[0024] Figure 8 This is a schematic diagram of the headrest height adjustment and side wing opening linkage mechanism provided in the embodiment of this application in the open state. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various implementations. Simultaneously, the steps or actions described in the method description can be rearranged or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various orders in the specification and drawings are merely for the clear description of a particular embodiment and do not imply a mandatory order, unless otherwise stated that a particular order must be followed.

[0026] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0028] Reference Figures 1 to 8This utility model embodiment provides a headrest height adjustment and side wing opening linkage mechanism, including: a seat body 100, an adjustment part 200, and a headrest 300. The adjustment part 200 and the headrest 300 are movably disposed on the seat body 100. The adjustment part 200 includes a side wing 210 and a positioning part 220. The positioning part 220 is located at the upper end of the side wing 210, and the lower end of the side wing 210 is hinged to the seat body 100. The positioning part 220 is provided with a positioning block 221, a slider 222, and a track 223. The slider 222 is inserted into the track 223. The slider 222 is movably connected to the positioning part 220; a first protrusion 224 and a second protrusion 225 are provided on the side of the slider 222 near the side wing 210, and a positioning hole 211 that mates with the first protrusion 224 is provided at the upper end of the side wing 210; a positioning groove 310 that mates with the second protrusion 225 is provided on the head support 300, and the distance from the positioning groove 310 to the middle position of the head support 300 gradually increases from top to bottom or remains the same; the second protrusion 225 moves up and down along the positioning groove 310, and the first protrusion 224 is inserted into the positioning hole 211 to drive the side wing 210 to rotate.

[0029] By setting the adjustment part 200 and the headrest 300, the second protrusion 225 can move up and down along the positioning groove 310 by moving the headrest 300, so that the first protrusion 224 can be inserted into the positioning hole 211 to drive the side wing 210 to rotate. This can realize the linkage adjustment of the headrest 300 and the side wing 210, and improve the protective performance and adjustment convenience of the linkage mechanism between the headrest height adjustment and the side wing opening. By setting the side wing 210 and the positioning part 220, the slider 222 is inserted into the track 223 and movably connected to the positioning part 220 to stably push the side wing 210 to rotate, so as to accurately adjust the position of the side wing 210, and improve the adjustment accuracy and structural stability of the linkage mechanism between the headrest height adjustment and the side wing opening.

[0030] In some embodiments, the lower end of the side wing 210 is provided with a base 212, and the side wing 210 is movably connected to the seat body 100 through the base 212. By providing the base 212, the connection flexibility between the side wing 210 and the seat body 100 is ensured, as well as the integrity and service life of the headrest height adjustment and side wing opening linkage mechanism.

[0031] In some embodiments, the seat body 100 is provided with a connecting block 110, the lower end of the connecting block 110 is fixedly connected to the seat body 100, and the upper end of the connecting block 110 is provided with a connecting post 111 that cooperates with the base 212. By providing the connecting block 110 and the connecting post 111, it is ensured that the side wing 210 can be stably inserted into the base 212 and hinged to the seat body 100 through the connecting post 111, thereby ensuring the connection stability between the side wing 210 and the seat body 100.

[0032] In some embodiments, the side wings 210 are symmetrically arranged on both sides of the seat body 100. This structure ensures that the side wings 210 on both sides of the headrest 300 can be adjusted in position simultaneously, increasing the adjustment range of the side wings 210 and improving the compatibility of the headrest height adjustment and the side wing opening linkage mechanism.

[0033] In some embodiments, the slider 222 is provided with a limiting block 226, and the slider 222 is inserted into the track 223 and slidably connected to the positioning part 220 through the limiting block 226. By setting the limiting block 226, it is ensured that the slider 222 can move stably along the track 223, avoiding displacement or falling off of the slider 222, and improving the working stability of the headrest height adjustment and side wing opening linkage mechanism.

[0034] In some embodiments, a movable block 240 is further provided between the slider 222 and the positioning part 220, and the slider 222 is provided with a through hole 250 that cooperates with the movable block 240. By providing the movable block 240 and the through hole 250, the slider 222 can be movably connected to the positioning part 220 by inserting the movable block 240 into the through hole 250, which prevents the slider 222 from falling off and improves the service life of the headrest height adjustment and side wing opening linkage mechanism.

[0035] In some embodiments, a spring 260 is also provided between the movable block 240 and the positioning part 220, with both ends of the spring 260 abutting against the movable block 240 and the positioning part 220 respectively. By providing the spring 260, the movable block 240 can be stably abutted against the inner side of the slider 222, preventing the slider 222 from falling off and improving the stability of the headrest height adjustment and side wing opening linkage mechanism.

[0036] In some embodiments, the positioning part 220 is provided with a mounting hole 221 that mates with the movable block 240, and the movable block 240 and the spring 260 are sequentially installed into the mounting hole 221. By providing the mounting hole 221, the connection stability between the positioning part 220 and the movable block 240 is ensured.

[0037] In some embodiments, the through hole 250 includes a first hole 251 and a second hole 252. A slide rod 241 and a plug 242 are sequentially provided on the movable block 240. The plug 242 is inserted into the first hole 251 so that the slide rod 241 is aligned with the second hole 252. By providing the first hole 251 and the second hole 252, it is ensured that the slide rod 241 can reciprocate along the second hole 252 after the plug 242 is inserted into the first hole 251, thus improving the working stability of the slider 222.

[0038] In some embodiments, the positioning hole 211 is elongated. This structure ensures that the side wing 210 can rotate stably and accurately along the connection point with the seat body 100, thereby improving the connection stability between the side wing 210 and the seat body 100.

[0039] In some embodiments, a base plate 120 is provided on the rear side of the seat body 100, and the adjustment part 200 and the headrest 300 are installed on the rear cover of the seat body 100 and the base plate 120 to ensure the stability and integrity of the linkage mechanism between the headrest height adjustment and the side wing opening.

[0040] An embodiment of this application provides a child safety seat, including the headrest height adjustment and side wing opening linkage mechanism as described above.

[0041] In the installation process of a child safety seat according to an embodiment of this application, firstly, side wings 210 are installed on the seat body 100, and a connecting post 111 is inserted into the base 212, and a plug is installed so that the lower end of the side wings 210 is hinged to the seat body 100; next, a headrest 300 is installed on the seat body 100; then, a movable block 240 and a spring 260 are sequentially inserted into the mounting hole 221, the limiting block 226 on the slider 222 is inserted into the track 223 and slidably connected to the positioning part 220, and the plug 242 is inserted into the first... The slide bar 241 is aligned with the second hole 252 within the hole 251. Then, the positioning part 220 is installed onto the seat body 100, so that the first protrusion 224 is inserted into the positioning hole 211 and the second protrusion 225 is inserted into the positioning groove 310. Finally, the base plate 120 is installed at the rear end of the seat body 100 to complete the assembly of the child safety seat. The entire process is efficient and controllable, ensuring the ease of installation of the child safety seat and the positioning accuracy of the headrest height adjustment and side wing opening linkage mechanism, thereby improving the production efficiency of the child safety seat.

[0042] In the use of a child safety seat according to an embodiment of this application, when the headrest 300 is at its lowest position on the seat body 100, the second protrusion 225 is at its closest center position to the headrest 300. The slider 222 fixes and conforms the side wings 210 to the seat body 100. At this time, the headrest height adjustment and side wing opening linkage mechanism are in the following state: Figure 7As shown in the closed position, the headrest 300 and side wings 210 are closed, and the child safety seat is suitable for younger children. When the headrest 300 cannot be adapted to the child's height, the user can adjust the height of the headrest 300 by pulling it vertically. At this time, the headrest 300 drives the positioning groove 310 to move up and down, and the second protrusion 225 moves up and down along the positioning groove 310. Since the distance from the positioning groove 310 to the middle position of the headrest 300 gradually increases or remains constant from top to bottom, when the headrest 300 moves upward, the second protrusion 225 moves downward along the positioning groove 310. When it moves to the position where the distance from the positioning groove 310 to the middle position of the headrest 300 gradually increases from top to bottom, the positioning groove 310 drives the second protrusion 225 to move outward, which in turn drives the slider 222 to move outward. At the same time, the slider 222 moves along the track 223 and drives the positioning hole 211 through the first protrusion 224 to make the side wing 210 rotate around the connecting column 111, so that the upper end of the side wing 210 extends outward, so that the side wing 210 opens outward at the same time as the headrest 300 is adjusted upward. At this time, the headrest height adjustment and side wing opening linkage mechanism are in the state of... Figure 8 As shown in the open position, the headrest 300 and side wings 210 are open, making the child safety seat suitable for older children. Simultaneously, once the headrest 300 is adjusted and secured, the positioning groove 310 locks the side wings 210 in place via the slider 222, preventing displacement or loosening of the side wings during use. This ensures the side wings provide stable lateral support for the child, guaranteeing the safety and ease of adjustment of the child safety seat, and improving its protective performance.

[0043] The headrest height adjustment and side wing opening linkage mechanism and child safety seat of this application embodiment, by setting an adjustment part 200 and a headrest 300, allows the second protrusion 225 to move up and down along the positioning groove 310 by moving the headrest 300, so that the first protrusion 224 can be inserted into the positioning hole 211 to drive the side wing 210 to rotate, thereby realizing the linkage adjustment of the headrest 300 and the side wing 210, improving the protective performance and adjustment convenience of the child safety seat; by setting the side wing 210 and the positioning part 220, the slider 222 is inserted into the track 223 and movably connected to the positioning part 220 to stably push the side wing 210 to rotate, so as to accurately adjust the position of the side wing 210, improving the safety performance and adjustment convenience of the child safety seat; by setting the side wing 210 and the positioning part 220, the slider 222 is inserted into the track 223 and movably connected to the positioning part 220 to stably push the side wing 210 to rotate, thereby accurately adjusting the position of the side wing 210, improving the safety performance and adjustment convenience of the child safety seat. The adjustment precision and structural stability of the child safety seat are improved. By setting the base 212, the connection flexibility between the side wings 210 and the seat body 100 is ensured, thus guaranteeing the integrity and service life of the child safety seat. By setting the connecting block 110 and the connecting column 111, the side wings 210 can be stably inserted into the base 212 and hinged to the seat body 100 through the connecting column 111, thereby ensuring the connection stability between the side wings 210 and the seat body 100. By setting the limiting block 226, the slider 222 can move stably along the track 223, preventing the slider 222 from shifting or falling off, thus improving the structural stability of the child safety seat.

[0044] In the several embodiments provided in this application, it should be understood that the disclosed systems, instruments, and methods can be implemented in other ways. For example, the instrument embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between instruments or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0045] The above is a detailed description of the preferred embodiments of this application. However, this application is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A headrest height adjustment and side wing opening linkage mechanism, characterized in that, include: The seat includes a seat body, an adjustment mechanism, and a headrest. The adjustment mechanism and the headrest are movably mounted on the seat body. The adjustment mechanism includes a side wing and a positioning part. The positioning part is located at the upper end of the side wing, and the lower end of the side wing is hinged to the seat body. The positioning part has a slider and a track. The slider is inserted into the track and movably connected to the positioning part. The slider has a first protrusion and a second protrusion on the side near the side wing. The upper end of the side wing has a positioning hole that mates with the first protrusion. The headrest has a positioning groove that mates with the second protrusion. The distance from the positioning groove to the middle position of the headrest gradually increases from top to bottom or remains constant. The second protrusion moves up and down along the positioning groove, and the first protrusion inserts into the positioning hole, causing the side wing to rotate.

2. The headrest height adjustment and side wing opening linkage mechanism according to claim 1, characterized in that, The lower end of the side wing is provided with a base, and the side wing is movably connected to the seat body through the base.

3. The headrest height adjustment and side wing opening linkage mechanism according to claim 2, characterized in that, The seat body is provided with a connecting block, the lower end of which is fixedly connected to the seat body, and the upper end of which is provided with a connecting post that cooperates with the base.

4. The headrest height adjustment and side wing opening linkage mechanism according to claim 3, characterized in that, The side wings are symmetrically arranged on both sides of the seat body.

5. The headrest height adjustment and side wing opening linkage mechanism according to claim 1, characterized in that, The slider is provided with a limiting block, and the slider is inserted into the track and slidably connected to the positioning part through the limiting block.

6. The headrest height adjustment and side wing opening linkage mechanism according to claim 5, characterized in that, A movable block is also provided between the slider and the positioning part, and the slider is provided with a through hole that cooperates with the movable block.

7. The headrest height adjustment and side wing opening linkage mechanism according to claim 6, characterized in that, A spring is also provided between the movable block and the positioning part, with the two ends of the spring abutting against the movable block and the positioning part respectively.

8. The headrest height adjustment and side wing opening linkage mechanism according to claim 7, characterized in that, The through hole includes a first hole and a second hole. The movable block is provided with a slide rod and a plug in sequence. The plug is inserted into the first hole so that the slide rod is aligned with the second hole.

9. The headrest height adjustment and side wing opening linkage mechanism according to claim 1, characterized in that, The positioning hole is oblong.

10. A child safety seat, characterized in that, Includes the headrest height adjustment and side wing opening linkage mechanism as described in any one of claims 1 to 9.

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