A child's dining chair with a parking function
By using a linkage rotation mechanism that supports the base assembly, backrest assembly, and lower limb support assembly, the problem of inconvenient folding and storage of existing children's high chairs is solved, achieving convenient folding and safe and stable storage functions, adapting to the needs of multiple usage scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU MYING CHILDREN PROD CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-07-14
AI Technical Summary
Existing children's high chairs are inconvenient to fold and store, and their overall structure is not very functional, failing to meet the needs for portability and multi-scenario use.
The chair employs a linkage rotating mechanism consisting of a support base assembly, a backrest assembly, and a lower limb support assembly. Combined with a rotary switch and a fixing structure, it achieves multiple folding operations and convenient operation, enhancing the chair's stability and safety.
It enables convenient folding and storage of children's dining chairs, improves comfort and safety, reduces production and maintenance costs, and facilitates use in different scenarios.
Smart Images

Figure CN224483520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of children's dining chairs, and in particular to a children's dining chair with a folding function. Background Technology
[0002] Traditional high chairs are widely used to provide a safe seat for infants and toddlers during meals. Existing designs typically include a foldable frame, a removable tray, and safety restraints. However, these existing solutions have several drawbacks that affect the product's practicality, safety, and convenience.
[0003] Existing folding children's high chairs come in various structures. For example, CN221489553U discloses a multi-functional children's high chair, including a chair frame with a tray assembly at the front and leg assemblies on both sides. The tray assembly includes a tray support with a tray body fixedly connected to its surface, and a first folding mechanism between the tray support and the chair frame. The leg assemblies include front and rear legs, both U-shaped, with seat lifting devices at both ends of the front legs, and a second folding mechanism between the rear and front legs. This invention, by using the first and second folding mechanisms and a button, allows for easy folding and unfolding of the tray and leg assemblies, making it simple and convenient to use. However, it only involves disassembling the tray and chair; the chair remains a single unit, making storage inconvenient.
[0004] The folding children's dining chair disclosed in CN221204800U includes a main body, which includes a seat assembly. A front leg assembly and a rear leg assembly are installed below the seat assembly to support it. The seat assembly includes a base and a backrest tube located at the rear of the base. The rear leg assembly includes a rear leg tube and a fixed seat at the upper end of the rear leg tube. The front leg assembly includes a front leg tube and a sliding sleeve fitted onto the front leg tube. The backrest tube is rotatably connected to the fixed seat. The upper end of the front leg tube is rotatably connected to the upper end of the rear leg tube, and the upper end of the front leg tube is fitted with the sliding sleeve. The main body includes a first supporting flat iron. The two ends of the first supporting flat iron are hinged to the front side of the base and the sliding sleeve, respectively. By pushing the backrest tube, the seat assembly is rotated and folded around the hinge point between the backrest tube and the fixed seat. The base, in conjunction with the first supporting flat iron, causes the first supporting flat iron to move the sliding sleeve, causing the front leg tube to fold backward, thus completing the final folded state. The entire application is foldable, but it consists of a tubular structure, requiring fabric to be placed inside for use as a seat, resulting in poor usability. Summary of the Invention
[0005] In view of the above technical problems, this utility model proposes a children's dining chair with a folding function, characterized in that it includes a support base assembly, a backrest assembly, a lower limb support assembly, and a linkage rotation mechanism. The backrest assembly is mounted on the support base assembly on its lower side, and the lower limb support assembly is mounted on the lower side of the support base assembly. The support base assembly and the linkage rotation mechanism are connected.
[0006] The backrest assembly is mounted on the support base assembly via a pivot mechanism and a fixing structure.
[0007] The lower limb support assembly is mounted on the underside of the support base assembly via a rotating fastener.
[0008] The support base assembly includes a base body, armrests, a pivot mechanism, a protective cover, and a rotary switch. Armrests are provided on both sides of the base body. A pivot mechanism is fixedly connected to one side of the protective cover. An installation hole is provided on the lower side of the base body. The pivot mechanism on the protective cover passes through the installation hole. The protective cover is fixed to the seat body by bolts. A limiting structure is provided on the rear side of the pivot mechanism. A fixing hole is provided on one side of the base body. A fixing hole is also provided on the backrest assembly at the corresponding fixing hole. The fixing structure passes through the two fixing holes to connect the base body and the backrest assembly together. A rotary switch is installed on the lower side of the base body. The rotary switch is connected to a linkage rotation mechanism through the pivot mechanism.
[0009] The linkage rotation mechanism is installed on the upper side of the protective cover plate.
[0010] The fixing holes of the base body are located on the lower side of the handrail.
[0011] The backrest assembly includes a head support unit and a back support unit. The head support unit is equipped with a handle. The head support unit has a connection hole and an operating hole inside. The handle is located at the top of the connection hole. A connecting post is installed inside the connection hole. The top of the connecting post is equipped with a handle. After installation, the handle is located in the operating hole and can move within the operating hole. The lower side of the connecting post is inserted into the mounting hole of the back support unit. The upper side of the back support unit is equipped with an operating handle, and the lower side of the back support unit is provided with a fixing hole.
[0012] The fixing structure includes a fixing post, a connector, and a clip. The fixing post has a limit strip on its upper side and is inserted into a fixing hole on the upper side of the backrest assembly. The fixing hole has a limiting groove corresponding to the limit strip on the fixing post. One side of the fixing post is welded to the clip. The clip has a fixing post on its upper side. The connector has a movable hole installed on the fixing post and a hole on its upper side.
[0013] The movable hole has an arc-shaped structure.
[0014] The movable hole is an inclined elongated structure.
[0015] The rotary switch includes a fixed housing, a push switch, and a rotating shaft mechanism. The fixed housing is fixed to the base body by bolts. The push switch is installed inside the fixed housing. A spring assembly is provided between the upper side of the push switch and the upper side of the fixed housing. The two ends of the spring are fixed to the push switch and the upper side of the fixed housing. The lower side of the push switch is installed on the upper side of the groove of the rotating shaft mechanism. The rotating shaft mechanism has multiple grooves on one side and a shaft-like structure on the other side. One end of the shaft-like structure of the rotating shaft mechanism is inserted into the rotating groove of the linkage rotating mechanism.
[0016] The push switch has two feet on its lower side, which are installed in grooves.
[0017] The upper side of the armrest is provided with a slot, and a plate is placed on the upper side of the buckle. The upper side of the plate is provided with a protrusion. When installed, the protrusion is inserted into the slot. There are multiple pairs of slots and protrusions.
[0018] The beneficial effects of this utility model are as follows: This utility model improves upon the existing structure by using several structural elements to achieve multiple folding of the supporting base assembly and backrest assembly, making the children's high chair more compact after folding and easier for users to store. This children's high chair not only provides basic seating functions but also has a folding function, facilitating storage and movement, and adapting to the needs of different usage scenarios.
[0019] The rotary switch and fixing structure of this invention are simple, yet they greatly facilitate the folding operation. When this component is damaged, it can be directly replaced, thus extending the service life of this invention.
[0020] This invention ensures the overall stability and safety of the chair through the precise connection of the support base assembly, backrest assembly, and lower limb support assembly, making it suitable for children.
[0021] The backrest assembly and lower limb support assembly of this invention are designed to be adjustable, allowing for appropriate adjustments based on the child's different heights and needs, thereby improving user comfort.
[0022] The protective cover and limiting structure of this invention enhance the safety of the chair, preventing accidents to children during use. The rotary switch and linkage rotation mechanism make the chair easier to operate, allowing parents to easily adjust its functions.
[0023] The design of the fixing structure (such as fixing column, connector, and clip) of this utility model makes the assembly and disassembly of the chair simpler, helps to reduce production and maintenance costs, and makes it convenient for users to clean and maintain.
[0024] The support base assembly, backrest assembly, and lower limb support assembly of this invention are all foldable, resulting in a small footprint when folded, making them easy to carry and store. The backrest assembly can accommodate a firm or thick cushion to enhance the child's comfort. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is a folding diagram of the present utility model;
[0027] Figure 3 This is a folding diagram of the present utility model;
[0028] Figure 4 This is a schematic diagram of the installation of the protective cover plate of this utility model;
[0029] Figure 5 This is a schematic diagram showing the rotating shaft mechanism of this utility model without a protective cover plate installed.
[0030] Figure 6 This is a schematic diagram of the rotary switch structure of this utility model;
[0031] Figure 7 This is a schematic diagram of the fixing structure of this utility model;
[0032] Figure 8 This is a schematic diagram of the fixing structure of this utility model;
[0033] Figure 9 This is a schematic diagram of the vehicle retrieval system of this utility model.
[0034] As shown in the figure, the components include: support base assembly 1, backrest assembly 2, lower limb support assembly 3, linkage rotation mechanism 4, base body 1-1, armrest 1-2, rotating shaft mechanism 1-3, protective cover plate 1-4, and rotary switch 1-5.
[0035] Head support unit 2-1, back support unit 2-2;
[0036] Fixed post 5-1, connector 5-2, clip 5-3;
[0037] Fixed housing 1-51, push switch 1-52, rotating shaft mechanism 1-53. Detailed Implementation
[0038] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0041] Example 1
[0042] This utility model relates to a children's high chair structure with integrated folding function, which mainly consists of a support base assembly, a backrest assembly, a lower limb support assembly, and a linkage rotation mechanism. The support base assembly and the backrest assembly are hinged together by a pivot mechanism, the lower limb support assembly is mounted on the bottom of the base by a rotating fastener, and the entire structure achieves folding function through a rotation linkage device.
[0043] Specifically, the support base assembly includes a base body, armrests on both sides, a pivot mechanism, a protective cover, and a rotary switch. The base body has symmetrically arranged arc-shaped armrests on both sides. The protective cover passes through mounting holes at the bottom of the base via the pivot mechanism and is secured with bolts. A positioning slot structure is located behind the pivot mechanism, and the sides of the base body have mounting holes corresponding to the backrest assembly, achieving a secure connection between the two via a dedicated plug-in device. The rotary switch is mounted at the bottom of the base and mechanically coupled to the linkage rotation mechanism via a drive shaft.
[0044] The backrest assembly features a split design, comprising a head support unit and a back support unit. The head support unit integrates a height-adjustable handle mechanism at its top, which slides into the mounting holes of the back support unit via a concealed connecting post. The back support unit has an operating handle at its upper part and a mounting interface corresponding to the base at its lower part.
[0045] The backrest assembly includes a head support unit and a back support unit. The head support unit is equipped with a handle. The head structure has a connection hole and an operating hole inside. The handle is located at the top of the connection hole. A connecting post is installed inside the connection hole. The handle is installed at the top of the connecting post. After installation, the handle is located in the operating hole and can move within the operating hole. The lower side of the connecting post is inserted into the mounting hole of the back support unit. An operating handle is installed on the upper side of the back support unit, and a fixing hole is provided on the lower side of the back support unit.
[0046] The fixing structure includes a fixing post, a connector, and a clip. A limit strip is provided on the upper side of the fixing post. The fixing post is inserted into the fixing hole on the upper side of the back support unit. A limit groove corresponding to the limit strip on the fixing post is provided in the fixing hole. One side of the fixing post is welded to the clip. The fixing post is provided on the upper side of the clip. The movable hole of the connector is installed on the fixing post. The upper side of the connector is provided with a hole.
[0047] The movable hole has an arc-shaped structure.
[0048] The moving hole is an inclined elongated structure.
[0049] The rotary switch includes a fixed housing, a push switch, and a rotating shaft. The fixed housing is fixed to the base body by bolts. The push switch is installed inside the fixed housing. A spring assembly is provided between the upper side of the push switch and the upper side of the fixed housing. The two ends of the spring are fixed to the push switch and the upper side of the fixed housing. The lower side of the push switch is installed on the upper side of the groove of the rotating shaft mechanism. Multiple grooves are opened on one side of the rotating shaft, and the other side is a shaft-shaped structure. One end of the shaft-shaped structure of the rotating shaft is inserted into the rotating groove of the linkage rotating mechanism.
[0050] The push switch has two feet on its lower side, which are installed in the groove.
[0051] Example 2
[0052] When using this utility model, the connector of the externally fixed structure is first pulled to move the clip, which in turn moves the fixed column. The fixed column and the fixing hole on the back support unit are disengaged, thus separating the support base assembly and the backrest assembly. At this time, pressure is applied to the backrest assembly by pressing the handle on the backrest assembly, and the backrest assembly rotates relative to the support base assembly, getting close to the support base assembly during rotation.
[0053] After the backrest assembly and the support base assembly are close together, press the rotary switch of the support base assembly upwards. The switch moves upwards, and the bottom foot on the lower side of the switch disengages from the groove on the rotating shaft mechanism. At this time, the rotating shaft mechanism is in a free state. Apply force with your hand, and the support base assembly rotates along the linkage rotating mechanism through the rotating shaft mechanism. After rotation is complete, release the switch. The spring between the switch and the fixed housing is released from compression. The switch moves downwards, and the bottom foot on the lower side of the switch moves downwards again. The bottom foot is inserted back into the groove of the rotating shaft. At this time, the rotating shaft is locked and cannot be rotated.
[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A child high chair with a folding function, characterized in that... It includes a support base assembly, a backrest assembly, a lower limb support assembly, and a linkage rotation mechanism. The backrest assembly is mounted on the lower side of the support base assembly, and the lower limb support assembly is mounted on the lower side of the support base assembly. The support base assembly and the linkage rotation mechanism are connected.
2. A child high chair with a folding function as described in claim 1, characterized in that... The backrest assembly is mounted on the support base assembly via a pivot mechanism and a fixing structure.
3. A child high chair with a folding function as described in claim 1, characterized in that... The lower limb support assembly is mounted on the underside of the support base assembly via a rotating fastener.
4. A child high chair with a folding function as described in claim 1, characterized in that... The support base assembly includes a base body, armrests, a pivot mechanism, a protective cover, and a rotary switch. Armrests are provided on both sides of the base body. A pivot mechanism is fixedly connected to one side of the protective cover. An installation hole is provided on the lower side of the base body. The pivot mechanism on the protective cover passes through the installation hole. The protective cover is fixed to the seat body by bolts. A limiting structure is provided on the rear side of the pivot mechanism. A fixing hole is provided on one side of the base body. A fixing hole is also provided on the backrest assembly at the corresponding fixing hole. The fixing structure passes through the two fixing holes to connect the base body and the backrest assembly together. A rotary switch is installed on the lower side of the base body. The rotary switch is connected to a linkage rotation mechanism through the pivot mechanism.
5. A child high chair with a folding function according to claim 1, characterized in that... The linkage rotation mechanism is installed on the upper side of the protective cover plate.
6. A child high chair with a folding function according to claim 4, characterized in that... The fixing holes of the base body are located on the lower side of the handrail.
7. A child high chair with a folding function according to claim 4, characterized in that... The backrest assembly includes a head support unit and a back support unit. The head support unit is equipped with a handle. The head structure has a connection hole and an operation hole inside. The handle is located at the top of the connection hole. A connecting post is installed inside the connection hole. The top of the connecting post is equipped with a handle. After installation, the handle is located in the operation hole and can move within the operation hole. The lower side of the connecting post is inserted into the mounting hole of the back support unit. The upper side of the back support unit is equipped with an operation handle, and the lower side of the back support unit is provided with a fixing hole.
8. A child high chair with a folding function according to claim 7, characterized in that... The fixing structure includes a fixing post, a connector, and a clip. The fixing post has a limit strip on its upper side and is inserted into a fixing hole on the upper side of the backrest assembly. The fixing hole has a limiting groove corresponding to the limit strip on the fixing post. One side of the fixing post is welded to the clip. The clip has a fixing post on its upper side. The connector has a movable hole installed on the fixing post and a hole on its upper side.
9. A child high chair with a folding function according to claim 8, characterized in that... The rotary switch includes a fixed housing, a push switch, and a rotating shaft mechanism. The fixed housing is fixed to the base body by bolts. The push switch is installed inside the fixed housing. A spring assembly is provided between the upper side of the push switch and the upper side of the fixed housing. The two ends of the spring are fixed to the push switch and the upper side of the fixed housing. The lower side of the push switch is installed on the upper side of the groove of the rotating shaft mechanism. The rotating shaft mechanism has multiple grooves on one side and a shaft-like structure on the other side. One end of the shaft-like structure of the rotating shaft mechanism is inserted into the rotating groove of the linkage rotating mechanism.
10. A child high chair with a folding function according to claim 9, characterized in that... The push switch has two feet on its lower side, which are installed in grooves.