Dining chair with adjustable height

Abstract

The utility model discloses a height-adjustable dining chair which comprises two oppositely arranged side supports and a seat plate, a backrest and a pedal which are arranged between the two side supports, and each side support comprises a front foot and a rear foot which are pivotally connected and has an unfolded state and a folded state; adaptive grooves extending in the height direction are formed in the front feet, section bars used for providing sliding ways are embedded in the adaptive grooves, the sliding ways of the two front feet are oppositely arranged, first sliding seats matched with the corresponding sliding ways are arranged on the two sides of the pedal respectively, second sliding seats matched with the corresponding sliding ways are arranged on the two sides of the seat plate respectively, and the first sliding seats and the second sliding seats are arranged on the two sides of the seat plate respectively. Bayonet sockets matched with the top ends of the corresponding slideways are respectively arranged on two sides of the backrest. By means of the mode that the groove is formed in the component and the sectional material is embedded in the groove, smooth operation experience can be achieved, meanwhile, more choices are provided for component materials, the problems that the strength is reduced and the machining difficulty is increased due to material choices are effectively avoided, the product texture is improved, and the use experience is improved.

Description

Technical Field

[0001] This application relates to the field of children's products, and in particular to height-adjustable high chairs. Background Technology

[0002] A high chair is a chair used to help children eat. It typically consists of a support frame and a seat mounted on the frame. To make it easy to store and carry, most high chairs are foldable.

[0003] For example, Chinese patent document CN105310347A discloses a child seat assembly, comprising: a seat support frame; a rear seat portion and a front seat portion, respectively connected to the seat support frame, wherein the front seat portion is slidable relative to the rear seat portion along a longitudinal axis between an unfolded state and a folded state, the longitudinal axis extending from the front to the rear of the seat assembly, and the front seat portion and the rear seat portion, when in the unfolded state, define a seating surface for accommodating a child; and a weight-sensitive locking mechanism disposed adjacent to the rear seat portion and the front seat portion, wherein the weight-sensitive locking mechanism is activated when a load is placed on the seat assembly to prevent the front seat portion from moving relative to the rear seat portion from the unfolded state to the folded state.

[0004] Similar to the aforementioned literature, in order to ensure the connection strength of each component, the existing technology mostly uses metal tubing to process each component, which results in a poor user experience and leaves room for improvement. Utility Model Content

[0005] To solve the above-mentioned technical problems, this application discloses an adjustable height dining chair, including two oppositely arranged side supports and a seat, backrest and pedal disposed between the two side supports. The side supports include a front leg and a rear leg that are pivotally connected, and have an unfolded state and a folded state.

[0006] The front foot is provided with an adapter groove extending in the height direction. The adapter groove is embedded with a profile for providing a slide. The slides of the two front feet are arranged opposite each other. The two sides of the pedal are respectively provided with a first sliding seat that mates with the corresponding slide. The two sides of the seat plate are respectively provided with a second sliding seat that mates with the corresponding slide. The two sides of the backrest are respectively provided with a plug-in seat that mates with the top of the corresponding slide.

[0007] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0008] In one embodiment, the slide rail is provided with a plurality of positioning holes, which are spaced apart in the height direction. Each sliding seat cooperates with the corresponding positioning hole to achieve positioning on the slide rail.

[0009] In one embodiment, the front foot is made of wood or polymer material, the slide is made of metal material, the slide has a T-shaped groove cross-section, and the surface of the slide is recessed or flush with the surface of the front foot.

[0010] In one embodiment, the slide is provided with fixed wings on both sides in the extending direction, and the slide is connected to the side edge of the adapter groove through the fixed wings.

[0011] In one embodiment, the rear foot is made of wood or polymer material, and a metal hinge is embedded in the rear foot. A hinge seat is provided in the middle of the slide, and the hinge and the hinge seat are pivotally connected by a rotating shaft and a locking mechanism is provided between them.

[0012] In one embodiment, the hinge seat is arranged to protrude outward relative to the extension path of the front foot.

[0013] In one embodiment, the top of the rear foot is provided with a insertion groove, and the hinge seat is inserted into the insertion groove.

[0014] In one embodiment, the top of the rear foot is provided with a positioning groove communicating with the insertion groove, the hinge is installed in the positioning groove, and the rotating shaft passes through the positioning groove and the insertion groove.

[0015] In one embodiment, the hinge is exposed on the side of the rear foot via the positioning groove, and the drive of the locking mechanism is disposed on the hinge.

[0016] In one embodiment, the dining chair further includes a side rail and a plate, the rear edge of the side rail is engaged with the backrest, the middle part of the side rail is provided with a support arm engaged with the front edge of the seat, the rear edge of the plate is connected to the side rail, and the front edge of the plate extends away from the backrest.

[0017] The technical solution disclosed in this application, by slotting and fitting profiles into the components, not only achieves a smooth operating experience but also provides more choices for component materials. This effectively avoids the problems of reduced strength and increased processing difficulty caused by material selection, thereby improving product quality and enhancing the user experience.

[0018] The specific beneficial technical effects will be further explained in the specific implementation methods in conjunction with the specific structures or steps. Attached Figure Description

[0019] Figure 1This is a schematic diagram of an adjustable-height dining chair structure in one embodiment of this application;

[0020] Figure 2 for Figure 1 An exploded diagram of the height-adjustable dining chair's backrest and side frame;

[0021] Figure 3 for Figure 1 An exploded diagram of the adjustable height side frame of the dining chair;

[0022] Figure 4 A schematic diagram of the front leg cross-section of an adjustable-height dining chair;

[0023] Figure 5 A 3D diagram of the front legs of an adjustable-height dining chair;

[0024] Figure 6 A 3D diagram of the back legs of an adjustable-height dining chair;

[0025] Figure 7 This is a side view of the side frame of an adjustable-height dining chair.

[0026] Figure 8 for Figure 7 A schematic diagram of the front and rear legs working together from the cross-sectional view at point AA.

[0027] The annotations in the figure are explained as follows:

[0028] 100. Side bracket; 110. Front foot; 111. Adapter groove; 112. Profile; 113. Slide rail; 114. Fixed wing; 115. Positioning hole; 116. Hinge seat; 120. Rear foot; 121. Hinge component; 122. Positioning groove; 123. Insertion groove; 130. Lateral connecting rod; 140. Locking mechanism; 141. Drive component; 150. Rotation shaft;

[0029] 200. Seat plate; 210. Second sliding seat;

[0030] 300. Backrest; 310. Socket;

[0031] 400. Pedal; 410. First sliding seat;

[0032] 500, enclosure; 510, dinner plate; 520, support arm. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] See appendix Figure 1 To be continued Figure 8 In the illustrated embodiment, this application discloses an adjustable-height dining chair, including two oppositely arranged side supports 100 and a seat 200, a backrest 300, and a footrest 400 disposed between the two side supports 100. The side supports 100 include a front leg 110 and a rear leg 120 pivotally connected, and have an unfolded state (see attached diagram). Figure 1 (As shown) and in the folded state. A transverse connecting rod 130 can also be set between the two side frames to establish the spatial structure and ensure stability.

[0037] The front legs 110 are provided with an adapter groove 111 extending in the height direction. A profile 112 for providing a slide rail 113 is embedded in the adapter groove 111. The slide rails 113 of the two front legs 110 are arranged opposite each other. The pedal 400 has a first sliding seat 410 on each side that mates with the corresponding slide rail 113. The seat plate 200 has a second sliding seat 210 on each side that mates with the corresponding slide rail 113. The first sliding seat 410 and the second sliding seat 210 can move relative to the slide rail 113 and achieve positioning, thereby adjusting the position of the seat plate 200 and the pedal 400 relative to the front legs 110, further realizing height adjustment of the seat plate 200 and the pedal 400. The backrest 300 has a plug-in seat 310 on each side that mates with the top of the corresponding slide rail 113. The plug-in seat 310 can be inserted into or removed relative to the slide rail 113, thereby realizing the installation and removal of the backrest 300.

[0038] The technical solution disclosed in this application, by slotting the component and fitting the profile 112, can provide more choices for the component material while achieving a smooth operating experience. It effectively avoids the problems of reduced strength and increased processing difficulty caused by material selection, improves product quality, and enhances the user experience.

[0039] For details on the setup of the front foot 110, please refer to the appendix. Figure 2 and attached Figure 5 In the illustrated embodiment, the front foot 110 is made of wood or polymer material, and the slide rail 113 is made of metal. The slide rail 113 has a T-shaped groove cross-section, and its surface is recessed or flush with the surface of the front foot 110. This inlay-type assembly method provides a wider range of front foot material options while ensuring the structural strength of the slide rail 113. The separate manufacturing and assembly method simplifies the production process and reduces production costs. In this embodiment, the front foot is wrapped around the profile 112 via an adapter groove 111 to further improve the appearance. See attached drawing. Figure 4 In the illustrated embodiment, the slide 113 has fixed wings 114 on both sides of its extension direction, and the slide 113 is connected to the side edge of the adapter groove 111 through the fixed wings 114. The side edge of the adapter groove 111 has mounting holes that mate with the fixed wings 114, and fasteners pass through the fixed wings 114 and are connected to the mounting holes. Compared to the adapter groove 111, the mounting holes mainly provide positioning, while the load is borne by the interaction between the inner wall of the adapter groove 111 and the outer peripheral surface of the profile 112. In some embodiments, an adhesive can be filled between the inner wall of the adapter groove 111 and the outer peripheral surface of the profile 112 to improve mechanical properties.

[0040] Profile 112 engages with the first sliding seat 410 and the second sliding seat 210 via slide rail 113. The first sliding seat 410 and the second sliding seat 210 can be positioned by pressing against the side wall of slide rail 113, or a positioning structure for engagement of each sliding seat can be provided on slide rail 113. See appendix. Figure 5 In the illustrated embodiment, the slide rail 113 is provided with a plurality of positioning holes 115, which are spaced apart in the height direction. Each sliding seat cooperates with the corresponding positioning hole 115 to achieve positioning on the slide rail 113. Each sliding seat is provided with a positioning pin, which has a positioning state when inserted into the positioning hole 115 and a release state when removed from the positioning hole 115. When the positioning pin is in the positioning state, the seat plate 200 or the pedal 400 is locked on the slide rail 113; when the positioning pin is in the release state, the seat plate 200 or the pedal 400 can move on the slide rail 113. Correspondingly, the seat plate 200 and the pedal 400 are provided with a drive mechanism for driving the corresponding positioning pin. The drive mechanism can be implemented in conjunction with existing technology, and will not be described in detail here.

[0041] See appendix Figure 3 Appendix Figure 6 In the illustrated embodiment, the rear foot 120 is made of wood or polymer material, and a metal hinge 121 is embedded within the rear foot 120. A hinge seat 116 is provided in the middle of the slide rail 113. The hinge 121 and the hinge seat 116 are pivotally connected by a rotation shaft 150, and a locking mechanism 140 is provided between them. The locking mechanism 140 can be implemented using existing technology and will not be described in detail here. Similar to the front foot 110, the form in which the hinge 121 is embedded in the rear foot 120 can provide a wider range of material choices for the rear foot 120 while ensuring the structural strength of the slide rail 113. In this embodiment, the rear foot 120 covers the hinge 121 to further improve the appearance.

[0042] For the coordination between the front foot (110) and the back foot (120), please refer to the appendix. Figure 3 Appendix Figure 7 In the illustrated embodiment, the hinge seat 116 protrudes outward relative to the extension path of the front leg 110. This protruding hinge seat 116 optimizes the fit between the front leg 110 and the rear leg 120, resulting in a more regular folding performance. (See attached diagram.) Figure 6 and attached Figure 8 The rear foot 120 has a insertion groove 123 at its top, and the hinge seat 116 is inserted into the insertion groove 123. Furthermore, the rear foot 120 has a positioning groove 122 at its top that communicates with the insertion groove 123. The hinge member 121 is installed in the positioning groove 122, and the rotating shaft 150 passes through the positioning groove 122 and the insertion groove 123. The hinge member 121 is exposed on the side of the rear foot 120 via the positioning groove 122, and the drive member 141 of the locking mechanism 140 is disposed on the hinge member 121.

[0043] For details on the implementation of seat functions, please refer to the appendix. Figure 1 and attached Figure 2 In the illustrated embodiment, the high chair also includes a bollard 500 and a tray 510. The rear edge of the bollard 500 is engaged with the backrest 300, and a support arm 520 is provided in the middle of the bollard 500, which engages with the front edge of the seat 200. The bollard 500 forms a relatively enclosed restraint space with the backrest 300. When a child sits in the restraint space from above, the child's legs extend out from both sides of the support arm 520 within the restraint space, providing a safe and stable seating experience. The rear edge of the tray 510 is connected to the bollard 500, and the front edge of the tray 510 extends away from the backrest 300. In addition to restraining the child, the bollard 500 also supports the tray 510.

[0044] The technical solution disclosed in this application provides a composite form that is rigid inside and flexible outside. The overall structure is stably connected through the profile 112, the hinge seat 116, and the hinge 121, ensuring stable function. The front leg 110 and the rear leg 120 can be easily made of wood and polymer materials to achieve a comfortable appearance, avoiding the problem of reduced strength due to material limitations. Overall, this application, by slotting the components and fitting the profile 112, provides design space for the seat's appearance while ensuring the overall structural strength and function.

[0045] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0046] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A height-adjustable dining chair, characterized in that, It includes two oppositely arranged side supports and a seat plate, backrest and pedal disposed between the two side supports. The side supports include a front leg and a rear leg that are pivotally connected and have an unfolded state and a folded state. The front foot is provided with an adapter groove extending in the height direction. The adapter groove is embedded with a profile for providing a slide. The slides of the two front feet are arranged opposite each other. The two sides of the pedal are respectively provided with a first sliding seat that mates with the corresponding slide. The two sides of the seat plate are respectively provided with a second sliding seat that mates with the corresponding slide. The two sides of the backrest are respectively provided with a plug-in seat that mates with the top of the corresponding slide.

2. The height-adjustable dining chair according to claim 1, characterized in that, The slide rail is provided with multiple positioning holes, which are spaced apart in the height direction. Each sliding seat cooperates with the corresponding positioning hole to achieve positioning on the slide rail.

3. The height-adjustable dining chair according to claim 1, characterized in that, The front foot is made of wood or polymer material, the slide is made of metal, the cross-section of the slide is a T-shaped groove, and the surface of the slide is recessed or flush with the surface of the front foot.

4. The height-adjustable dining chair according to claim 3, characterized in that, The slide is provided with fixed wings on both sides in the extension direction, and the slide is connected to the side edge of the adapter groove through the fixed wings.

5. The height-adjustable dining chair according to claim 1, characterized in that, The rear foot is made of wood or polymer material, and a metal hinge is embedded in the rear foot. A hinge seat is provided in the middle of the slide. The hinge and the hinge seat are pivotally connected by a rotating shaft and a locking mechanism is provided between them.

6. The height-adjustable dining chair according to claim 5, characterized in that, The hinge seat is convex outward relative to the extension path of the front foot.

7. The height-adjustable dining chair according to claim 6, characterized in that, The top of the rear foot is provided with a insertion groove, and the hinge seat is inserted into the insertion groove.

8. The height-adjustable dining chair according to claim 7, characterized in that, The top of the rear foot is provided with a positioning groove that communicates with the insertion groove. The hinge is installed in the positioning groove, and the rotating shaft passes through the positioning groove and the insertion groove.

9. The height-adjustable dining chair according to claim 8, characterized in that, The hinge is exposed on the side of the rear foot via the positioning groove, and the drive of the locking mechanism is disposed on the hinge.

10. The height-adjustable dining chair according to claim 1, characterized in that, The dining chair also includes a side panel and a plate. The rear edge of the side panel is engaged with the backrest. The middle part of the side panel is provided with a support arm that engages with the front edge of the seat. The rear edge of the plate is connected to the side panel, and the front edge of the plate extends away from the backrest.

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