Multi-partition backrest of child sitting posture chair

Abstract

The utility model discloses a multi-partition backrest of a child sitting posture chair, and belongs to the technical field of chairs. A multi-partition backrest of a child sitting posture chair comprises a fixing frame; the multi-partition backrest of the child sitting posture chair is characterized by further comprising a gear rotationally connected with the fixing frame; the first mounting plate is horizontally and slidably connected with the fixing frame; the first rack is fixedly connected with the first mounting plate and is meshed with the gear; the second mounting plate is horizontally and slidably connected with the fixing frame; the second rack is fixedly connected with the second mounting plate and is meshed with the gear; the first chair back is connected with the first mounting plate in an inserting manner; the second chair back is connected with the first mounting plate in an inserting manner; wherein the first mounting plate comprises a limiting groove and a limiting surface; mounting parts are arranged on the first chair back and the second chair back; the number of the limiting grooves is two. And the second mounting plate and the first mounting plate have the same structure. The multi-partition backrest of the child sitting posture chair has the beneficial effect that the adjustable multi-partition backrest of the child sitting posture chair is provided.

Description

Technical Field

[0001] This application relates to the field of chair technology, and more specifically, to a multi-zone backrest for a children's sitting chair. Background Technology

[0002] Generally speaking, with changes in the social environment, modern people spend most of their day sitting in chairs, and chairs are evolving from simple household items into health products with new meanings.

[0003] Research into reclining chairs that provide users with comfortable postures continues, ranging from chairs with simple tilting functions to chairs that maximize comfort and ease of use through the integration of ergonomics and IT (Information Technology). Currently, the backrests of most chairs are fixed and cannot be adjusted in width, resulting in poor comfort for larger children.

[0004] Therefore, a multi-zone backrest with adjustable child seating posture is provided. Utility Model Content

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide a multi-zone backrest for a children's seating chair, comprising: a fixed frame; a gear rotatably connected to the fixed frame; a first mounting plate horizontally slidably connected to the fixed frame; a first rack fixedly connected to the first mounting plate and meshing with the gear; a second mounting plate horizontally slidably connected to the fixed frame; a second rack fixedly connected to the second mounting plate and meshing with the gear; a first backrest inserted into the first mounting plate; and a second backrest inserted into the second mounting plate. The first mounting plate includes a limiting groove; both the first and second backrests are provided with mounting portions; two limiting grooves are provided, one for limiting the mounting portion of the first backrest and the other for limiting the mounting portion of the second backrest; the second mounting plate has the same structure as the first mounting plate; the first and second backrests are provided in two sets, one set inserted into the first mounting plate and the other set inserted into the second mounting plate.

[0007] Pushing the first mounting plate moves the first rack, which in turn moves the first gear, which in turn rotates the gear, which in turn moves the second rack, which in turn moves the second mounting plate. This allows for the adjustment of the first and second mounting plates, thereby adjusting the positions of the two sets of first and second chair backs to suit people of different body types.

[0008] Furthermore, the first mounting plate includes a first slider; the fixing frame is provided with a first sliding groove extending in the length direction of the fixing frame; the first slider is located in the first sliding groove and moves along the first sliding groove.

[0009] Furthermore, the second mounting plate includes a second slider; the fixing frame is provided with a second sliding groove extending in the length direction of the fixing frame; the second slider is located in the second sliding groove and moves along the second sliding groove.

[0010] Furthermore, the first rack and the second rack are arranged symmetrically.

[0011] Furthermore, the first mounting plate and the first rack are integrally formed.

[0012] Furthermore, the second mounting plate is integrally formed with the second rack.

[0013] Furthermore, the mounting part is a T-shaped protrusion.

[0014] Furthermore, the limiting groove is a T-shaped groove.

[0015] Furthermore, the first chair back includes a back support area; the back support area is used to support the back.

[0016] Furthermore, the second chair back includes a lumbar pressure relief area, a sacral support area, and a side wing folding area; the lumbar pressure relief area and the sacral support area are located on the inner side of the second chair back; the side wing folding area is located on the outer side of the second chair back; the lumbar pressure relief area is used for lumbar support; the sacral support area is used for sacral support.

[0017] The beneficial effect of this application is that it provides a multi-zone backrest for children's sitting chairs with better comfort. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0019] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0020] In the attached diagram:

[0021] Figure 1 This is an overall schematic diagram based on an embodiment of this application;

[0022] Figure 2This is a structural diagram of a part of an embodiment, mainly showing the structure of the second mounting plate;

[0023] Figure 3 yes Figure 2 The enlarged view of part A mainly shows the structure of the first rack and the second rack;

[0024] Figure 4 This is a structural schematic diagram of a part of an embodiment, mainly showing the structure of the limiting groove;

[0025] Figure 5 This is a structural diagram of a part of the embodiment, mainly showing the structure of the first chair back and the second chair back;

[0026] Figure 6 yes Figure 5 The enlarged view of part B mainly shows the structure of the first mounting plate.

[0027] Figure 7 This is a structural diagram of a part of the embodiment, mainly showing the structure of the lumbar pressure relief area;

[0028] Figure 8 This is a structural schematic diagram as part of an embodiment, mainly showing the structure of the mounting part.

[0029] Figure label:

[0030] 100. Multi-zone backrest of children's seating chair; 101. Fixing frame; 101a. First slide groove; 101b. Second slide groove; 102. Gear; 103. First mounting plate; 103a. First slider; 103b. Limiting groove; 104. First rack; 105. Second mounting plate; 105a. Second slider; 106. Second rack; 107. First backrest; 107a. Mounting part; 107b. Back support area; 108. Second backrest; 108a. Lumbar pressure relief area; 108b. Sacral support area; 108c. Side wing folding area; 109. Chair base. Detailed Implementation

[0031] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0032] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0033] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0034] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0035] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Reference Figure 1-8 A multi-zone backrest 100 for a children's seating chair includes: a fixing frame 101, a gear 102, a first mounting plate 103, a first rack 104, a second mounting plate 105, a second rack 106, a first backrest 107, and a second backrest 108. The gear 102 is rotatably connected to the fixing frame 101. The first mounting plate 103 is horizontally slidably connected to the fixing frame 101. Specifically, the first mounting plate 103 includes a first slider 103a, and the fixing frame 101 has a first groove 101a extending along its length. The first slider 103a is located within the first groove 101a and moves along it. A damping block is provided between the gear 102 and the fixing frame 101. The fixing frame 101 is fixedly connected to a chair base 109.

[0037] The first rack 104 is fixedly connected to the first mounting plate 103 and meshes with the gear 102. The first mounting plate 103 and the first rack 104 are integrally formed. The second mounting plate 105 is horizontally slidably connected to the fixing frame 101. Specifically, the second mounting plate 105 includes a second slider 105a, and the fixing frame 101 is provided with a second slide groove 101b extending in the length direction of the fixing frame 101. The second slider 105a is located in the second slide groove 101b and moves along the second slide groove 101b.

[0038] The second rack 106 is fixedly connected to the second mounting plate 105 and meshes with the gear 102. The first rack 104 and the second rack 106 are symmetrically arranged. The second mounting plate 105 and the second rack 106 are integrally formed. The first chair back 107 is inserted into the first mounting plate 103. The second chair back 108 is inserted into the first mounting plate 103.

[0039] The first mounting plate 103 includes a limiting groove 103b, which is a T-shaped groove. Both the first backrest 107 and the second backrest 108 have mounting portions 107a, which are T-shaped protrusions. There are two limiting grooves 103b; the mounting portion 107a of the first backrest 107 is inserted into one limiting groove 103b, and the mounting portion 107a of the second backrest 108 is inserted into the other limiting groove 103b. The second mounting plate 105 has the same structure as the first mounting plate 103. Both the first backrest 107 and the second backrest 108 have two sets of symmetrically arranged backrests; one set is inserted into the first mounting plate 103, and the other set is inserted into the second mounting plate 105. Compared to traditional one-piece backrests, this design offers higher comfort. Furthermore, the first backrest 107 and the second backrest 108 are detachable for easy maintenance or replacement.

[0040] The first chair back 107 includes a back support area 107b, which supports the back. The second chair back 108 includes a lumbar pressure relief area 108a, a sacral support area 108b, and a side wing folding area 108c. The lumbar pressure relief area 108a and the sacral support area 108b are located on the inner side of the second chair back, while the side wing folding area 108c is located on the outer side of the second chair back. The lumbar pressure relief area provides support for the lower back, and the sacral support area provides support for the sacrum.

[0041] Simultaneously, the back support area 107b provides support for the back, the lumbar pressure relief area 108a supports the lumbar region, the second support area 108b supports the sacrum, and the side wing convergence area 108c provides better support for both sides of the lumbar region, preventing lateral curvature and thus improving posture. Furthermore, the multi-point support ensures better overall support, and the first backrest 107 and the second backrest 108 feature an S-shaped streamline that better conforms to the curvature of the spine, resulting in greater comfort.

[0042] Working principle: In use, the mounting part 107a of the first backrest 107 is inserted into one limiting groove 103b, and the mounting part 107a of the second backrest 108 is inserted into the other limiting groove 103b. There are two sets of both the first backrest 107 and the second backrest 108. Compared with the traditional one-piece backrest, having two sets provides greater comfort. Furthermore, the first backrest 107 and the second backrest 108 are detachable for easy maintenance or replacement.

[0043] Simultaneously, when it is necessary to adjust the distance between the first backrest 107 and the second backrest 108, the first mounting plate 103 is pushed. The movement of the first mounting plate 103 drives the first rack 104 to move, which in turn drives the gear 102 to rotate. The rotation of the gear 102 drives the second rack 106 to move relative to each other, thereby causing the first mounting plate 103 and the second mounting plate 105 to move relative to each other. This, in turn, causes the two sets of first backrests 107 and second backrests 108 to move relative to each other (one set of first backrests 107 and second backrests 108 is inserted into the first mounting plate 103, and the other set is inserted into the second mounting plate 105). This allows for quick adjustment of the positions of the two sets of first backrests 107 and second backrests 108. At the same time, a damping block is provided between the gear 102 and the fixing frame 101. Without external force, the gear 102 will not rotate, making the adjustment of the first backrests 107 and second backrests 108 more convenient and suitable for children of different sizes.

[0044] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A multi-zone backrest for a child's sitting chair, comprising: The fixing frame; characterized in that: the multi-zone backrest of the child sitting chair further includes: The gear is rotatably connected to the fixed frame; The first mounting plate is horizontally slidably connected to the fixing frame; The first rack is fixedly connected to the first mounting plate and is meshed with the gear; The second mounting plate is horizontally slidably connected to the fixing bracket; The second rack is fixedly connected to the second mounting plate and is meshed with the gear; The first chair back is inserted into the first mounting plate; The second chair back is inserted into the first mounting plate; The first mounting plate includes a limiting groove; both the first and second chair backs are provided with mounting portions; there are two limiting grooves, one for limiting the mounting portion of the first chair back and the other for limiting the mounting portion of the second chair back; the second mounting plate has the same structure as the first mounting plate; the first and second chair backs are provided with two sets, one set inserted into the first mounting plate and the other set inserted into the second mounting plate.

2. The multi-zone backrest of the children's sitting chair according to claim 1, characterized in that: The first mounting plate includes a first slider; The fixing frame is provided with a first sliding groove extending in the length direction of the fixing frame; The first slider is located in the first groove and moves along the first groove.

3. The multi-zone backrest of the children's sitting chair according to claim 2, characterized in that: The second mounting plate includes a second slider; The fixing frame is provided with a second sliding groove extending in the length direction of the fixing frame; The second slider is located within the second groove and moves along the second groove.

4. The multi-zone backrest of the child sitting chair according to claim 1, characterized in that: The first rack and the second rack are arranged symmetrically.

5. The multi-zone backrest of the children's sitting chair according to claim 1, characterized in that: The first mounting plate and the first rack are integrally formed.

6. The multi-zone backrest of the child sitting chair according to claim 1, characterized in that: The second mounting plate is integrally formed with the second rack.

7. The multi-zone backrest of the child sitting chair according to claim 1, characterized in that: The mounting part is a T-shaped protrusion.

8. The multi-zone backrest of the child sitting chair according to claim 1, characterized in that: The limiting groove is a T-shaped groove.

9. The multi-zone backrest of the child sitting chair according to claim 1, characterized in that: The first chair back includes a back support area; the back support area is used to support the back.

10. The multi-zone backrest of the child sitting chair according to claim 1, characterized in that: The second chair back includes a lumbar pressure relief area, a sacral support area, and a side wing folding area; The lumbar pressure relief area and sacral support area are located on the inside of the second chair back; The side wing retractable area is located on the outside of the second chair back; The lumbar pressure relief area is used for lumbar support; The sacral support area is used for sacral support.

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