A child's high chair retraction high chair leg control joint
By designing a children's high chair with leg control joints and button-controlled locking positions, the folding and unfolding operation of the high chair is simplified, solving the problem of complicated folding of high chairs in existing technologies and achieving a convenient high chair user experience.
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
- 2026-07-24
Smart Images

Figure CN224550529U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of children's dining chairs, and in particular to a control joint for the folding legs of a children's dining chair. Background Technology
[0002] A high chair is a piece of furniture specifically designed for infants and children to provide a safe and comfortable sitting position during meals. As families place increasing emphasis on children's health and safety, the design and technology of high chairs continue to evolve. Many modern high chairs are designed to be foldable, making them easy to store and carry, suitable for families with small spaces or for travel. However, current high chairs require unfolding during use and then folding them back up afterward, and the existing folding methods are relatively complex and inconvenient to use.
[0003] To address the aforementioned issues, patent CN221489553U discloses a multifunctional children's high chair, including a chair frame. A tray assembly is located at the front of the chair frame, and leg assemblies are located on both sides of the chair frame. The tray assembly includes a tray support, with a tray body fixedly connected to the surface of the tray support. A first folding mechanism is provided between the tray support and the chair frame. The leg assemblies include a front leg and a rear leg, both U-shaped, with seat lifting devices at both ends of the front leg. A second folding mechanism is provided between the rear leg and the front leg. This invention, by setting the first and second folding mechanisms and using a button, allows for easy folding and unfolding of the tray and leg assemblies, making operation simple and convenient. However, while the leg assembly can be folded for storage, it is folded via the first folding mechanism, requiring the pressing of a first button, which is located on the side of the first folding mechanism, making operation inconvenient. Summary of the Invention
[0004] In view of the above technical problems, this utility model proposes a child high chair folding chair leg control joint, characterized in that it includes a front shell, a rear shell, a rotating structure, and a button. The front shell and the rear shell are respectively installed on the front and rear sides of the rotating structure. A groove is opened on the upper side of the rear shell, and the button is installed in the groove. The button passes through the rear shell and is connected to the rotating structure.
[0005] The front housing is mounted on the upper side of the rotating structure by screws.
[0006] The front shell is made of alloy material.
[0007] The front shell and the upper rear side are provided with reinforcing ribs.
[0008] The rear shell is fixed to the rear side of the rotating structure by a threaded structure.
[0009] The rear shell is fixed to the rear side of the rotating structure by a protruding structure.
[0010] The rotating structure includes a rotating component, a locking block, and a locking component. The locking component is fixed to the rotating component, and the locking component has an installation hole. The locking component is connected to a chair leg via the installation hole, bolts, and another chair leg. The locking component has a slot and a moving hole. The locking component is connected to the rotating component via bolts, and the locking component rotates on the rotating component via the moving hole. The locking block is movably installed in the slot of the locking component, and the locking block is fixed to the rotating component.
[0011] The locking block includes a body, a movable block, and a locking block. Movable blocks are installed on both sides of the body, and a locking block is installed on one side of the body. The movable blocks and locking blocks are movable structures, and springs are installed inside the movable blocks and locking blocks. The upper side of the locking block is inclined. The four sides of the movable block are chamfered. The locking block is movably installed in the locking slot of the locking component.
[0012] The button has a spring installed inside, and the lower side of the button is a pressure foot with an inclined structure. A sliding hole is opened on the side of the pressure foot, and a moving block of the locking block is installed in the sliding hole. A pressure plate is provided on the front side of the button.
[0013] The rotating component has a slot for engaging with the protruding structure of the rear shell.
[0014] The rotating component is provided with multiple fixing grooves and guide grooves, and multiple reinforcing ribs.
[0015] The beneficial effects of this application are: the structure of this utility model is simple and easy to operate. This utility model controls the movement and fixation of the locking mechanism by controlling the position of the locking block with a button, making it convenient for users to fold up the high chair. The operation is simple and effortless, making it easy for mothers to use.
[0016] The front shell, rear side, and upper side of the rotating part of this utility model are provided with reinforcing ribs, which reduce the weight of the parts while ensuring their strength, resulting in low cost but high quality.
[0017] In use, the button of this invention is located on the upper side of the rear shell for easy pressing by the user. Pressing the button moves it downwards, causing the button's pressure plate to contact the locking block's latch, which then presses the latch backwards. The latch moves out of the locking slot, allowing the connecting chair legs to move, achieving the effect of retracting the chair. Releasing the button causes the spring to return, and the latch moves, causing the locking block to be in a compressed state. When the chair needs to be used, the chair legs are moved directly, moving the locking slot to the latch position. With no external force, the spring keeps the latch in a protruding state, locking it in the slot and securing it. The moving block of the locking mechanism moves within the sliding hole of the button, ensuring stable button operation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is a diagram illustrating the use of this utility model; As shown in the picture: Front shell 1, rear shell 2, rotating structure 3, button 4; Rotating component 3-1, locking block 3-2, clamping component 3-3; Main body 4-1, moving block 4-2, card block 4-3. Detailed Implementation
[0019] 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.
[0020] 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.
[0021] 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.
[0022] Example 1 This utility model discloses a child high chair folding chair leg control joint, characterized by comprising a front shell, a rear shell, a rotating structure, and a button. The front shell and rear shell are respectively installed on the front and rear sides of the rotating structure. A groove is formed on the upper side of the rear shell, and a button is installed in the groove. The button passes through the rear shell and connects to the rotating structure.
[0023] The front shell is mounted on the upper side of the rotating structure with screws, and is made of alloy material. Reinforcing ribs are provided on the upper sides of both the front and rear shells. The rear shell is fixed to the rear side of the rotating structure via a threaded or protruding structure.
[0024] The rotating structure includes a rotating component, a locking block, and a locking element. The locking element is fixed to the rotating component, and it has mounting holes. The locking element is connected to one chair leg via the mounting holes and bolts. Another chair leg is also mounted on the rotating component. The locking element has a slot and a moving hole. The locking element is connected to the rotating component via bolts, allowing it to rotate on the rotating component through the moving hole. Furthermore, a locking block is movably installed within the slot of the locking element and is fixed to the rotating component.
[0025] The locking block consists of a main body, a moving block, and a locking block. The moving blocks are installed on both sides of the main body, while the locking block is installed on one side of the main body. The moving blocks and the locking block are movable structures with springs installed inside. The upper side of the locking block is inclined, and the four sides of the moving blocks are chamfered. The locking block is movably installed in the locking slot of the locking component.
[0026] The button contains a spring, and its lower side has a pressure foot with an inclined structure. A sliding hole is provided on the side, and a moving block for locking is installed inside the sliding hole. A pressure plate is also provided on the front side of the button.
[0027] The rotating part has a slot that matches the protruding structure of the rear shell, and has multiple fixing slots and guide slots. The rotating part also has multiple reinforcing ribs.
[0028] Example 2 The specific method of using this utility model is as follows: Ensure the chair legs are securely connected to the locking mechanism, and check the button and locking block for obstructions. Gently press the button on the device. The button will move downwards. As the button moves downwards, its pressure plate will engage with the locking block, causing it to press backwards. As the block is pressed backwards, it will disengage from the locking mechanism's slot, allowing it to move freely along the sliding hole. The user can then manually push the chair legs inwards to retract them, achieving the folding effect. Releasing the button will return it to its original position due to the spring's rebound.
[0029] When the button rebounds, the locking mechanism moves, causing the locking slot to shift as well. The locking block then moves to a compressed position. Ensure the button has fully returned to its original position; the locking block should then be in a protruding state, ready for the next use.
[0030] When the high chair needs to be used, simply move the chair legs outwards. As the chair legs move, the locking slots of the latches will re-engage with the locking blocks. Since no external force is applied to the locking blocks, the springs will push them back into the slots, ensuring the locking blocks are firmly locked in place, thus securing the chair legs and ensuring safe use.
[0031] During use, ensure that the button moves smoothly within the sliding hole to avoid jamming, thus guaranteeing the stability and safety of each operation.
[0032] Regular inspection: Regularly inspect the condition of buttons, pressure plates, and lock blocks to ensure there is no wear or damage.
[0033] Cleaning: Keep the parts clean to prevent dust and debris from affecting the normal movement of the blocks.
[0034] Avoid excessive force: When operating the button, avoid excessive force to prevent damage to the spring or other components.
[0035] By following the steps above, this utility model can be used conveniently, improving the storage and usage efficiency of dining chairs.
[0036] 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 folding chair leg control joint, characterized in that... It includes a front shell, a rear shell, a rotating structure, and a button. The front shell and the rear shell are respectively installed on the front and rear sides of the rotating structure. A groove is provided on the upper side of the rear shell, and the button is installed in the groove. The button passes through the rear shell and is connected to the rotating structure.
2. The child high chair folding chair leg control joint according to claim 1, characterized in that... The front housing is mounted on the upper side of the rotating structure by screws.
3. The child high chair folding chair leg control joint according to claim 1, characterized in that... The front shell is made of alloy material.
4. The child high chair folding chair leg control joint according to claim 1, characterized in that... The front shell and the upper rear side are provided with reinforcing ribs.
5. A child high chair folding chair leg control joint according to claim 1, characterized in that... The rear shell is fixed to the rear side of the rotating structure by a threaded structure.
6. A child high chair folding chair leg control joint according to claim 1, characterized in that... The rear shell is fixed to the rear side of the rotating structure by a protruding structure.
7. A child high chair leg control joint according to claim 1, characterized in that... The rotating structure includes a rotating component, a locking block, and a locking component. The locking component is fixed to the rotating component, and the locking component has an installation hole. The locking component is connected to a chair leg via the installation hole, bolts, and another chair leg. The locking component has a slot and a moving hole. The locking component is connected to the rotating component via bolts, and the locking component rotates on the rotating component via the moving hole. The locking block is movably installed in the slot of the locking component, and the locking block is fixed to the rotating component.
8. A child high chair leg control joint according to claim 7, characterized in that... The locking block includes a body, a movable block, and a locking block. Movable blocks are installed on both sides of the body, and a locking block is installed on one side of the body. The movable blocks and locking blocks are movable structures, and springs are installed inside the movable blocks and locking blocks. The upper side of the locking block is inclined. The four sides of the movable block are chamfered. The locking block is movably installed in the locking slot of the locking component.
9. A child high chair folding chair leg control joint according to claim 8, characterized in that... The button has a spring installed inside, and the lower side of the button is a pressure foot with an inclined structure. A sliding hole is opened on the side of the pressure foot, and a moving block of the locking block is installed in the sliding hole. A pressure plate is provided on the front side of the button.
10. A child high chair folding chair leg control joint according to claim 7, characterized in that... The rotating component has a slot for engaging with the protruding structure of the rear shell; the rotating component has multiple fixing slots and guide slots, and multiple reinforcing ribs.