A multifunctional backrest structure for a child's dining chair

Abstract

The utility model discloses a multifunctional backrest structure for children dining chair, concretely relates to children dining chair technical field, including chair body, the top of chair body is provided with backrest body, and the bottom of backrest body is rotatably connected with mobile base, and mobile base and chair body are slidably connected, and the bottom of chair body is provided with drive assembly, and the output of drive assembly is fixedly connected with mobile base, and drive assembly is used for driving mobile base to move back and forth, and the rear end of chair body is provided with two empty slots. The utility model discloses through electric cylinder control and connect the front and back displacement of frame, drive mobile base along the stable sliding of sliding slot, thereby realize the accurate adjustment of backrest body front and back position, then through handle and go up and lift the hook fixed strip, make the clamping block insert the hook fixed strip, adjust the angle of backrest body, on the basis of backrest angle adjusting function, further optimize the waist support and sitting posture comfort of different weight baby.

Description

Technical Field

[0001] This utility model relates to the field of children's dining chair technology, and more specifically, to a multifunctional backrest structure for children's dining chairs. Background Technology

[0002] Children's high chairs are designed specifically for infants and toddlers, using a sturdy frame structure and environmentally friendly materials to ensure the safety of babies and peace of mind for parents. They are usually equipped with adjustable height and multiple backrest angles to adapt to the needs of different growth stages. They come with a detachable tray and a five-point safety harness, balancing dining convenience with freedom of movement. By combining a high-strength metal frame with food-grade engineering plastics, they achieve lightweight design while ensuring load-bearing stability. The use of easy-to-clean waterproof fabric and a smooth, rounded design further enhances practicality and safety.

[0003] The backrest adjustment function of current mainstream children's high chairs lacks adaptive adjustment of the front and back positions, making it difficult to fit children of different body types and weights. For toddlers who are overweight or growing rapidly, the fixed depth of the seat may cause back compression or unsupported movement, affecting sitting comfort and spinal health development, thus limiting the long-term use value and cross-age applicability of the product.

[0004] In conclusion, to enhance the long-term usability and cross-age applicability of children's high chairs, it is necessary to address the core issue of the mismatch between fixed backrest space and the dynamic growth needs of children. This would allow the seat depth to be flexibly adjusted according to the child's body shape, thereby ensuring that toddlers of different weights and growth stages can receive ergonomic lumbar support and proper sitting posture. Summary of the Invention

[0005] This utility model provides a multifunctional backrest structure for children's dining chairs. The problem it aims to solve is that the backrest adjustment function of current mainstream children's dining chairs lacks adaptive adjustment of the front and back positions. For toddlers who are overweight or growing rapidly, the fixed depth of the seat may cause back compression or unsupported position, affecting sitting comfort and spinal health development, thus limiting the long-term use value and cross-age applicability of the product.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional backrest structure for a children's dining chair, comprising a chair body, a backrest body at the top of the chair body, a movable base rotatably connected to the bottom of the backrest body, the movable base being slidably connected to the chair body, a drive assembly at the bottom of the chair body, the output end of the drive assembly being fixedly connected to the movable base, the drive assembly being used to drive the movable base to move back and forth, two slots being provided at the rear end of the chair body, two sliding grooves being provided at the top of the chair body, the sliding grooves being slidably connected to the movable base, a handle being rotatably connected to both the left and right sides of the backrest body, a hook fixing strip being fixedly connected inside the handle, a support frame being fixedly connected to the outer surface of the chair body, a locking block being fixedly connected to both the left and right sides of the support frame, the hook fixing strip being movably connected to the locking block, and a handle being fixedly connected to the outer surface of the handle.

[0007] In a preferred embodiment, the drive assembly includes an electric cylinder fixed to the bottom of the chair body and a connecting frame fixed to the output end of the electric cylinder. The electric cylinder is used to drive the connecting frame to move back and forth. The connecting frame is fixedly connected to the movable base and slidably connected to the slot.

[0008] In a preferred embodiment, a tabletop is provided on the top of the support frame, and an anti-slip pad is fixedly connected to the top of the chair body.

[0009] In a preferred embodiment, a body temperature detector is provided at the front end of the backrest body, and a control button is provided at the rear end of the backrest body.

[0010] In a preferred embodiment, a mounting block is threadedly connected to the top of the chair body, and an elastic toy is fixedly connected to the top of the mounting block.

[0011] In a preferred embodiment, a motor is fixedly connected inside the chair body, and a threaded rod is fixedly connected to the output end of the motor, which is used to drive the threaded rod to rotate.

[0012] In a preferred embodiment, two limiting rods are fixedly connected inside the chair body, a movable plate is threadedly connected to the outer surface of the threaded rod, the movable plate is slidably connected to the limiting rod, and a caster wheel is fixedly connected to the bottom of the movable plate.

[0013] The beneficial effects of this utility model are as follows: This invention uses an electric cylinder to control the forward and backward displacement of the connecting frame, which drives the moving base to slide smoothly along the slide groove, thereby achieving precise adjustment of the backrest body's forward and backward position. Then, by lifting the handle upwards to fix the hook strip, the locking block is inserted into the hook strip, adjusting the angle of the backrest body. This not only solves the problem of children's body shape adaptation caused by the fixed seat depth of traditional dining chairs, but also further optimizes the lumbar support and sitting comfort of children of different weights based on the backrest angle adjustment function. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a side sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the rear cross-sectional structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the left cross-sectional structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the upper cross-sectional structure of this utility model.

[0019] The attached diagram is labeled as follows: 1. Chair body; 2. Backrest body; 3. Movable base; 4. Connecting frame; 5. Electric cylinder; 6. Hollow groove; 7. Slide groove; 8. Support frame; 9. Locking block; 10. Turning handle; 11. Hook fixing strip; 12. Tabletop; 13. Anti-slip mat; 14. Body temperature detector; 15. Control button; 16. Mounting block; 17. Elastic toy; 18. Motor; 19. Threaded rod; 20. Limiting rod; 21. Movable plate; 22. Caster wheel; 23. Handle. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Refer to the instruction manual appendix Figures 1 to 5 A multifunctional backrest structure for a children's dining chair includes a chair body 1, a backrest body 2 at the top of the chair body 1, a movable base 3 rotatably connected to the bottom of the backrest body 2, the movable base 3 being slidably connected to the chair body 1, a drive assembly at the bottom of the chair body 1, the output end of the drive assembly being fixedly connected to the movable base 3, the drive assembly being used to drive the movable base 3 to move back and forth, two slots 6 at the rear end of the chair body 1, two sliding grooves 7 at the top of the chair body 1 being slidably connected to the movable base 3, a rotatable handle 10 rotatably connected to both the left and right sides of the backrest body 2, a hook fixing strip 11 fixedly connected inside the rotatable handle 10, a support frame 8 fixedly connected to the outer surface of the chair body 1, a locking block 9 fixedly connected to both the left and right sides of the support frame 8, the hook fixing strip 11 being movably connected to the locking block 9, and a handle 23 fixedly connected to the outer surface of the rotatable handle 10.

[0022] It should be noted that the electric cylinder 5 in the drive assembly precisely controls the front and rear displacement of the connecting frame 4, which drives the moving base 3 to slide smoothly along the slide groove 7, thereby achieving precise adjustment of the front and rear position of the backrest body 2. Then, by lifting the hook fixing strip 11 upwards through the handle 23, the locking block 9 is inserted into the hook fixing strip 11, and the angle of the backrest body 2 is adjusted. This structure not only solves the problem of children's body shape adaptation caused by the fixed seat depth of traditional dining chairs, but also further optimizes the lumbar support and sitting comfort of children of different weights on the basis of the backrest angle adjustment function.

[0023] Refer to the instruction manual appendix Figure 2 The drive assembly includes an electric cylinder 5 fixed to the bottom of the chair body 1 and a connecting frame 4 fixed to the output end of the electric cylinder 5. The electric cylinder 5 is used to drive the connecting frame 4 to move back and forth. The connecting frame 4 is fixedly connected to the movable base 3 and slidably connected to the slot 6.

[0024] It should be noted that the sliding fit design of the connecting frame 4 and the slot 6 not only limits the deviation of the movement trajectory, but also hides the moving parts through the structure of the slot 6, allowing for simultaneous adjustment of the backrest angle and front-to-back position to provide optimal support.

[0025] Refer to the instruction manual appendix Figure 1 A tabletop 12 is provided on the top of the support frame 8, and an anti-slip pad 13 is fixedly connected to the top of the chair body 1.

[0026] It should be noted that the anti-slip mat 13 effectively prevents children from sliding on the seat, enhancing safety.

[0027] Refer to the instruction manual appendix Figure 1 A body temperature detector 14 is provided at the front end of the backrest body 2, and a control button 15 is provided at the rear end of the backrest body 2.

[0028] It should be noted that the body temperature detector 14 is integrated into the front of the backrest, which can monitor the child's body temperature in real time and set the warning threshold through the control button 15. If an abnormality is detected, it will automatically remind the caregiver. The control button 15 adopts an embedded waterproof design and can control the operation of the electric cylinder 5.

[0029] Refer to the instruction manual appendix Figure 3 The top of the chair body 1 is threadedly connected to a mounting block 16, and the top of the mounting block 16 is fixedly connected to an elastic toy 17.

[0030] It should be noted that the mounting block 16 is fixed to the top of the chair body 1 by a threaded connection, and different shaped elastic toys 17 can be replaced as needed.

[0031] It should be noted that the Elastic Toy 17 absorbs impact through elastic deformation, providing both entertainment and reducing the risk of collision injuries. The toy material meets food contact grade standards, ensuring safety for children to chew on.

[0032] Refer to the instruction manual appendix Figure 5 A motor 18 is fixedly connected inside the chair body 1, and a threaded rod 19 is fixedly connected to the output end of the motor 18. The motor 18 is used to drive the threaded rod 19 to rotate.

[0033] It should be noted that when the motor 18 drives the threaded rod 19 to rotate, the moving plate 21 rises and falls vertically along the limiting rod 20, realizing the extension and retraction function of the caster wheel 22. When the dining chair needs to be moved, the caster wheel 22 descends to contact the ground for easy pushing. When fixed, it rises so that the chair legs directly touch the ground, enhancing stability. The limiting rod 20 effectively prevents the moving plate 21 from rotating, ensuring that the lifting process is linear and controllable.

[0034] Refer to the instruction manual appendix Figure 2 The chair body 1 has two fixedly connected limit rods 20 inside. The outer surface of the threaded rod 19 is threadedly connected to a movable plate 21. The movable plate 21 is slidably connected to the limit rods 20. The bottom of the movable plate 21 is fixedly connected to a caster wheel 22.

[0035] It should be noted that the 22-inch caster wheels have a built-in brake, which maintains ease of movement while eliminating the risk of the high chair shifting due to children shaking.

[0036] Working principle: The electric cylinder 5 in the drive assembly precisely controls the forward and backward displacement of the connecting frame 4, driving the movable base 3 to slide smoothly along the slide groove 7, achieving precise adjustment of the backrest body 2's forward and backward position. Simultaneously, combined with the throttle 10 and hook fixing strip 11 structure, the backrest angle can be adjusted in multiple positions via the locking block 9. This dual adjustment mechanism effectively solves the problem of children's body shape adaptation caused by the fixed seat depth of traditional high chairs, optimizing lumbar support and sitting comfort for children of different weights. The sliding cooperation design of the connecting frame 4 and the slot 6 ensures the accuracy of the movement trajectory while avoiding the risk of pinching injury through the hidden structure. Supporting functions include: an anti-slip mat 13 to enhance sitting stability; an integrated body temperature detector 14 to monitor children's health status in real time; a waterproof control button 15 that can set warning thresholds and control the operation of the electric cylinder 5; a modular threaded connection mounting block 16 that supports the replacement of elastic toys 17; and a motor-driven universal wheel 22 lifting system that works in conjunction with the threaded rod 19 and limit rod 20 to achieve one-button switching between moving and fixed modes of the high chair, ensuring convenient movement while improving stability when stationary.

[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A multi-functional backrest structure for a child's dining chair, characterized by: The chair body (1) includes a backrest body (2) on the top of the chair body (1), a movable base (3) rotatably connected to the bottom of the backrest body (2), the movable base (3) slidably connected to the chair body (1), a drive component is provided at the bottom of the chair body (1), the output end of the drive component is fixedly connected to the movable base (3), two slots (6) are opened at the rear end of the chair body (1), two sliding grooves (7) are opened at the top of the chair body (1), the sliding grooves (7) are slidably connected to the movable base (3), a throttle handle (10) is rotatably connected to both the left and right sides of the backrest body (2), a hook fixing strip (11) is fixedly connected inside the throttle handle (10), a support frame (8) is fixedly connected to the outer surface of the chair body (1), a locking block (9) is fixedly connected to both the left and right sides of the support frame (8), the hook fixing strip (11) is movably connected to the locking block (9), and a handle (23) is fixedly connected to the outer surface of the throttle handle (10).

2. A multi-functional backrest structure for a child's dining chair according to claim 1, characterized in that: The drive assembly includes an electric cylinder (5) fixed to the bottom of the chair body (1) and a connecting frame (4) fixed to the output end of the electric cylinder (5). The connecting frame (4) is fixedly connected to the movable base (3) and slidably connected to the slot (6).

3. A multi-functional backrest structure for a child's dining chair according to claim 1, characterized in that: The top of the support frame (8) is provided with a table board (12), and the top of the chair body (1) is fixedly connected with an anti-slip pad (13).

4. A multi-functional backrest structure for a child dining chair according to claim 1, characterized in that: The backrest body (2) is provided with a body temperature detector (14) at the front end and a control button (15) at the rear end.

5. A multi-functional backrest structure for a child dining chair according to claim 1, characterized in that: The top of the chair body (1) is threadedly connected to a mounting block (16), and the top of the mounting block (16) is fixedly connected to an elastic toy (17).

6. A multi-functional backrest structure for a child dining chair according to claim 1, characterized in that: A motor (18) is fixedly connected inside the chair body (1), and a threaded rod (19) is fixedly connected to the output end of the motor (18).

7. A multi-functional backrest structure for a child's dining chair according to claim 6, characterized in that: The chair body (1) has two limiting rods (20) fixedly connected inside. The outer surface of the threaded rod (19) is threadedly connected to a movable plate (21). The movable plate (21) is slidably connected to the limiting rods (20). The bottom of the movable plate (21) is fixedly connected to a caster wheel (22).

Images