Child learning chair with rotating positioning backrest
By designing a rotating connection between the center backrest and side backrest on the study chair, combined with damping and limiting devices, the problems of complex and costly backrest adjustment modes in existing study chairs are solved, resulting in a simple, low-cost, and low-failure-rate rotating positioning backrest.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU AIGUOLE INTELLIGENT TECH CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-04
AI Technical Summary
Existing study chairs have complex backrest adjustment mechanisms, high costs, and high failure rates, making them unsuitable for mass production.
The backrest and side backrest are connected by a rotation, and combined with a damping device and a limiting device, the rotation positioning of the backrest is achieved. The structure is simple and the cost is low.
It enables simple backrest adjustment, reduces production costs, improves product reliability, and is suitable for mass production.
Smart Images
Figure CN224584493U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of children's seat technology, and in particular relates to a rotating positioning backrest for a children's study chair. Background Technology
[0002] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:
[0003] Existing study chairs have complex backrest adjustment mechanisms and are relatively expensive.
[0004] CN220876405U discloses a backrest adjustment mechanism for a children's study chair, comprising a support frame, a lifting slide movably mounted on the support frame, a fastening handle screwed onto the left end of the lifting slide, an inner slide integrally fixed to the right end of the lifting slide, an outer slide movably mounted on the outside of the inner slide, and two backrest plates symmetrically mounted on both sides of the right end of the outer slide via elastic supports. However, this method also fails to solve the aforementioned technical problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a rotating positioning backrest for a children's learning chair, which has a simple structure, low cost, low failure rate, and is suitable for mass production.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a rotating positioning backrest for a children's learning chair, having:
[0007] The middle backrest can be installed on the seat body;
[0008] Side backrests, with one side backrest on each side of the middle backrest, the side backrests being rotatably connected to the middle backrest;
[0009] The connecting part of the middle backrest and the side backrest is provided with a damping device to prevent the side backrest from rotating. When the resistance of the damping device is overcome, the side backrest can rotate relative to the middle backrest.
[0010] The center backrest is provided with a center connecting block, and the side backrest is provided with a side mounting seat. The center connecting block is rotatably mounted on the side mounting seat. The damping device is provided on the center connecting block and the side mounting seat.
[0011] The damping device includes a damping block, and a positioning block is provided on the damping block; the intermediate connecting block is provided with a positioning groove that is adapted to the damping block.
[0012] The connection between the center backrest and the side backrest is also equipped with a limiting device.
[0013] The limiting device includes a limiting groove and a limiting block; the limiting groove is disposed on the side mounting base, and the limiting block is disposed on the middle connecting block, and the limiting block is adapted to the limiting groove; when the side backrest moves to the limit position, the limiting groove blocks the limiting block.
[0014] The damping block is provided with mounting holes, and the damping block is mounted on the side mounting base through the mounting holes and mounting bolts.
[0015] One of the above technical solutions has the following advantages or beneficial effects: simple structure, low cost, low failure rate, and suitable for mass production. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the rotating positioning backrest of the children's learning chair provided in the embodiments of this utility model;
[0017] Figure 2 for Figure 1 A schematic diagram of the rotating positioning backrest of a children's learning chair;
[0018] Figure 3 for Figure 1 A schematic diagram of the rotating positioning backrest of a children's learning chair;
[0019] Figure 4 for Figure 1 A schematic diagram of the rotating positioning backrest of a children's learning chair;
[0020] Figure 5 for Figure 1 A schematic diagram of the rotating positioning backrest of a children's learning chair;
[0021] The markings in the above figures are as follows: 31, middle backrest; 311, middle connecting block; 312, limiting block; 313, positioning groove; 32, side backrest; 321, side mounting base; 322, limiting groove; 33, damping block; 331, positioning block; 332, mounting hole; 34, groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] See Figures 1-5A rotating and positioning backrest for a children's learning chair includes: a central backrest 31, which can be installed on the seat body; side backrests 32, with one side backrest 32 on each side of the central backrest 31, and the side backrests 32 are rotatably connected to the central backrest 31; and a damping device, wherein the connection between the central backrest 31 and the side backrests 32 is provided with a damping device to prevent the side backrests 32 from rotating. When the resistance of the damping device is overcome, the side backrests 32 can rotate relative to the central backrest 31. The backrest comprises three components: a left component, a right component, and a central component. The left and right components are rotatably connected to both sides of the central component via a rotating shaft. The left and right components are provided with elastic damping, and the central component has multiple damping positions at corresponding positions. (The damping structures on the central component and the left and right components are interchangeable, i.e., the central component is provided with elastic damping, and the left and right components have multiple damping positions at corresponding positions.) When rotation adjustment is required, the elastic damping will automatically engage the damping position when the chair is rotated to the corresponding position. It has a simple structure, low cost, low failure rate, and is suitable for mass production.
[0025] A central connecting block 311 is provided on the central backrest 31, and a side mounting seat 321 is provided on the side backrest 32. The central connecting block 311 is rotatably mounted on the side mounting seat 321. A damping device is provided on the central connecting block 311 and the side mounting seat 321. The rotatable connection between the side backrest 32 and the central backrest 31 is achieved through the central connecting block 311 and the side mounting seat 321.
[0026] The damping device includes a damping block 33, on which a positioning block 331 is provided; the connecting block 311 has a positioning groove 313 adapted to the damping block 33. The damping block 33 is made of a deformable material. When subjected to external force, the positioning block 331 on the damping block 33 deforms and disengages from the positioning groove 313, realizing the rotation function. When there is no external force, the positioning block 331 of the damping block 33 engages with the positioning groove 313, realizing the positioning function.
[0027] The damping block 33 is provided with mounting holes 332. The damping block 33 is mounted on the side mounting base 321 through the mounting holes 332 and mounting bolts, which facilitates disassembly and assembly.
[0028] The above structure is simple, low-cost, and has a low failure rate, making it suitable for mass production. The backrest can rotate to accommodate users of different body types.
[0029] Example 2
[0030] See Figures 1-5A rotating and positioning backrest for a children's learning chair includes: a central backrest 31, which can be installed on the seat body; side backrests 32, with one side backrest 32 on each side of the central backrest 31, and the side backrests 32 are rotatably connected to the central backrest 31; and a damping device, wherein the connection between the central backrest 31 and the side backrests 32 is provided with a damping device to prevent the side backrests 32 from rotating. When the resistance of the damping device is overcome, the side backrests 32 can rotate relative to the central backrest 31. The backrest comprises three components: a left component, a right component, and a central component. The left and right components are rotatably connected to both sides of the central component via a rotating shaft. The left and right components are provided with elastic damping, and the central component has multiple damping positions at corresponding positions. (The damping structures on the central component and the left and right components are interchangeable, i.e., the central component is provided with elastic damping, and the left and right components have multiple damping positions at corresponding positions.) When rotation adjustment is required, the elastic damping will automatically engage the damping position when the chair is rotated to the corresponding position. It has a simple structure, low cost, low failure rate, and is suitable for mass production.
[0031] A central connecting block 311 is provided on the central backrest 31, and a side mounting seat 321 is provided on the side backrest 32. The central connecting block 311 is rotatably mounted on the side mounting seat 321. A damping device is provided on the central connecting block 311 and the side mounting seat 321. The rotatable connection between the side backrest 32 and the central backrest 31 is achieved through the central connecting block 311 and the side mounting seat 321.
[0032] The damping device includes a damping block 33, on which a positioning block 331 is provided; the connecting block 311 has a positioning groove 313 adapted to the damping block 33. The damping block 33 is made of a deformable material. When subjected to external force, the positioning block 331 on the damping block 33 deforms and disengages from the positioning groove 313, realizing the rotation function. When there is no external force, the positioning block 331 of the damping block 33 engages with the positioning groove 313, realizing the positioning function.
[0033] In this embodiment, the connection between the middle backrest 31 and the side backrest 32 is also provided with a limiting device, which serves to limit the extreme position during the rotation of the middle backrest 31 and the side backrest 32, and prevent excessive rotation.
[0034] The limiting device includes a limiting groove 322 and a limiting block 312. The limiting groove 322 is disposed on the side mounting base 321, and the limiting block 312 is disposed on the middle connecting block 311. The limiting block 312 is adapted to the limiting groove 322. When the side backrest 32 moves to the limit position, the limiting groove 322 blocks the limiting block 312. The limiting groove 322 limits the limit position of the limiting block 312. During the rotation of the middle backrest 31 and the side backrest 32, it serves to limit the limit position and prevent excessive rotation.
[0035] The damping block 33 is provided with mounting holes 332. The damping block 33 is mounted on the side mounting base 321 through the mounting holes 332 and mounting bolts, which facilitates disassembly and assembly.
[0036] The above structure is simple, low-cost, and has a low failure rate, making it suitable for mass production. The backrest can rotate to accommodate users of different body types.
[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rotating positioning backrest for a children's study chair, characterized in that, have: The middle backrest can be installed on the seat body; Side backrests, with one side backrest on each side of the middle backrest, the side backrests being rotatably connected to the middle backrest; The connecting part of the middle backrest and the side backrest is provided with a damping device to prevent the side backrest from rotating. When the resistance of the damping device is overcome, the side backrest can rotate relative to the middle backrest.
2. The rotating positioning backrest of the children's study chair as described in claim 1, characterized in that, The center backrest is provided with a center connecting block, and the side backrest is provided with a side mounting seat. The center connecting block is rotatably mounted on the side mounting seat. The damping device is provided on the center connecting block and the side mounting seat.
3. The rotating positioning backrest of the children's study chair as described in claim 2, characterized in that, The damping device includes a damping block, and a positioning block is provided on the damping block; the intermediate connecting block is provided with a positioning groove that is adapted to the damping block.
4. The rotating positioning backrest of the children's study chair as described in claim 3, characterized in that, The connection between the center backrest and the side backrest is also equipped with a limiting device.
5. The rotating positioning backrest of the children's study chair as described in claim 4, characterized in that, The limiting device includes a limiting groove and a limiting block; the limiting groove is disposed on the side mounting base, and the limiting block is disposed on the middle connecting block, and the limiting block is adapted to the limiting groove; when the side backrest moves to the limit position, the limiting groove blocks the limiting block.
6. The rotating positioning backrest of the children's study chair as described in claim 5, characterized in that, The damping block is provided with mounting holes, and the damping block is mounted on the side mounting base through the mounting holes and mounting bolts.