Child dining chair capable of being quickly folded

Abstract

The utility model discloses a child dining chair capable of being quickly folded, which comprises front legs, rear legs, a seat plate, a dinner plate and a backrest, and rotary joints for rotationally connecting the front legs, the rear legs, the seat plate, the dinner plate and the backrest are arranged among the front legs, the rear legs, the seat plate, the dinner plate and the backrest. The locking mechanism is used for unlocking and locking the front foot, the rear foot, the seat plate and the dinner plate, and the angle adjusting mechanism is used for locking and unlocking and adjusting the angle of the backrest. The storage box has the advantage that the storage box can be stored more conveniently.

Description

Technical Field

[0001] This utility model relates to the field of children's dining chair technology, and in particular to a children's dining chair that can be quickly folded up. Background Technology

[0002] Currently, children's high chairs on the market have some design shortcomings, especially in terms of portability and storage. Traditional children's high chairs usually come with a fixed tray. This design means that even when folded, the chair is still quite large, taking up a lot of storage space and causing inconvenience for family storage and transport, such as difficulty in fitting into a car trunk or small storage room. To solve this problem, some manufacturers have developed children's high chairs with foldable trays. However, these improvements also have drawbacks. Existing foldable tray designs usually require separate operation by the user; that is, the folding of the tray and the folding of the chair body are independent of each other and not synchronized or linked. This means that users need to perform multiple steps when storing the high chair: first, they need to disassemble or fold the tray, and then fold the chair body. This cumbersome operation undoubtedly increases the user's burden, especially when the high chair needs to be frequently stored and unfolded, such as after daily meals or when taking it out. This non-linked folding design is particularly inconvenient and reduces the user experience.

[0003] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a children's dining chair that can be stored more conveniently.

[0005] This utility model is achieved through the following technical solution:

[0006] To solve the above-mentioned technical problems, this utility model provides a children's dining chair that can be quickly folded, including front legs, back legs, seat, tray and backrest. A rotating joint is provided between the front legs, back legs, seat, tray and backrest to connect the five parts together. The rotating joint is connected to a locking mechanism for unlocking and locking the front legs, back legs, seat and tray, and an angle adjustment mechanism for locking and unlocking and adjusting the backrest angle.

[0007] To further solve the technical problems to be solved by this utility model, this utility model provides a children's dining chair that can be quickly folded. The tray includes a tray frame, a tray body disposed on the tray frame, and a number of front support rods and rear support rods that are movably connected between the tray frame and the seat plate. The lower end of the front support rod is rotatably connected to the front of the seat plate, the upper end of the front support rod is rotatably connected to the front of the tray frame, and the upper end of the rear support rod is rotatably connected to the rear of the tray frame.

[0008] The rotating joint includes a front foot rotating seat located at the upper end of the front foot, a rear foot rotating seat located at the upper end of the rear foot, a tray rotating seat located at the lower end of the rear support rod, a seat plate rotating seat located on the seat plate, and a backrest rotating seat located at the lower end of the backrest, and the front foot rotating seat, rear foot rotating seat, tray rotating seat, seat plate rotating seat and backrest rotating seat are rotatably connected together.

[0009] To further address the technical problems addressed by this utility model, a children's high chair that can be quickly folded is provided by this utility model. The locking mechanism includes a lock seat fixed relative to the seat plate rotating seat. A first locking structure for limiting the rotation of the seat plate rotating seat is provided between the lock seat and the tray rotating seat. A second locking structure for limiting the rotation of the rear foot rotating seat is provided between the lock seat and the rear foot rotating seat. A third locking structure for limiting the relative rotation of the front foot rotating seat and the rear foot rotating seat is provided between the lock seat and the front foot rotating seat and the rear foot rotating seat.

[0010] To further address the technical problems addressed by this utility model, a children's high chair that can be quickly folded is provided. The first locking structure includes a slider slidably connected to a lock seat. The slider is provided with a first tongue. The tray rotating seat is provided with several first slots that allow the first tongue to be inserted, thereby restricting the rotation of the tray rotating seat. A first return spring is provided between the slider and the lock seat, which elastically presses the first tongue towards the first slot. A first pull rope is connected to the slider, and the other end of the first pull rope is connected to a first unlocking button.

[0011] In order to further solve the technical problems to be solved by this utility model, the present utility model provides a children's dining chair that can be quickly folded, wherein the second locking structure includes a second tongue provided on the slider, and the rear foot rotating seat is provided with a second slot for the second tongue to be inserted.

[0012] To further address the technical problems addressed by this utility model, a children's high chair capable of quick folding is provided. The third locking structure includes a first spline groove on the front leg swivel seat, a second spline groove on the rear leg swivel seat, a spline between the first and second spline grooves, and a second return spring that presses the spline towards the second spline groove. The spline has a shallow groove and a deep groove within it. The locking seat has a tongue that slides between the shallow and deep grooves as it rotates. When the tongue is in the shallow groove, the spline disengages from the first spline groove and remains only in the second spline groove. When the tongue is in the deep groove, the spline is simultaneously inserted into both the first and second spline grooves.

[0013] In order to further solve the technical problems to be solved by this utility model, this utility model provides a children's dining chair that can be quickly folded, wherein the tray body is detachably connected to the tray frame through a quick-release structure.

[0014] To further address the technical problems addressed by this utility model, a quick-folding children's high chair is provided. The quick-release structure includes several latches on the plate body and several slots on the plate frame for inserting the corresponding latches. A second unlocking button is slidably connected to the plate body, and a locking groove is provided on the plate frame for inserting the second unlocking button. A third return spring is provided between the second unlocking button and the plate body to elastically press the second unlocking button towards the locking groove.

[0015] To further address the technical problems addressed by this utility model, the present utility model provides a children's dining chair that can be quickly folded, wherein the cross-section of the latch and the locking groove are both T-shaped.

[0016] To further address the technical problems addressed by this utility model, a children's dining chair capable of quick folding is provided. The angle adjustment mechanism is fixed to a locking disc relative to the seat plate rotation seat. The locking disc has a long arc-shaped opening and several short stop openings. An adjustment block that can extend into and be inserted into the long arc-shaped opening and the short stop openings is slidably connected to the backrest. When the adjustment block is inserted into the long arc-shaped opening, the backrest can still rotate in the folding direction. A fourth return spring is provided between the adjustment block and the backrest to press the adjustment block against the locking disc. A second pull rope is connected to the adjustment block, and the other end of the second pull rope is connected to an adjustment knob slidably connected to the backrest.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This utility model provides a children's high chair that can be quickly folded. The tray participates in the overall folding process of the high chair. Through the design of the rotating joint, locking mechanism and connection between the tray and the seat, the folding of the tray and the folding of the high chair are linked, thereby simplifying the folding steps, improving folding efficiency, making the folded high chair smaller and more space-saving, while taking into account the safety, stability and ease of cleaning. Attached Figure Description

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a 3D structural diagram of a children's high chair;

[0021] Figure 2 This is an exploded view of a children's high chair;

[0022] Figure 3 This is an exploded view of a rotary joint;

[0023] Figure 4 This is a three-dimensional structural diagram of the lock base and spline;

[0024] Figure 5 It is a three-dimensional structural diagram of the rear foot rotating seat, the plate rotating seat, and the slider;

[0025] Figure 6 This is an exploded view of the dinner plate;

[0026] Figure 7 This is a diagram illustrating the folding process of a children's high chair;

[0027] Figure 8 This is a diagram showing the children's high chair when fully folded. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] This invention provides a children's high chair that can be quickly folded. The folding of the tray is linked to the overall folding process of the chair, making it more convenient.

[0030] like Figures 1 to 8As shown, the children's high chair in this embodiment includes front legs 1, rear legs 2, a seat 3, a tray 4, and a backrest 5. The front legs 1, rear legs 2, seat 3, tray 4, and backrest 5 are rotatably connected via a rotary joint 6. The rotary joint 6 is connected to a locking mechanism 7 and an angle adjustment mechanism 8. The locking mechanism 7 is used to lock and unlock the front legs 1, rear legs 2, seat 3, and tray 4, enabling the high chair to unfold and fold. The angle adjustment mechanism 8 is used to lock and unlock the backrest 5 and adjust the angle of the backrest 5.

[0031] The tray 4 participates in the overall folding process of the dining chair. Specifically, the tray 4 includes a tray frame 41, a tray body 42 mounted on the tray frame 41, and several front support rods 43 and rear support rods 44 movably connected between the tray frame 41 and the seat plate 3. The lower end of the front support rod 43 is rotatably connected to the front of the seat plate 3, and the upper end is rotatably connected to the front of the tray frame 41. The upper end of the rear support rod 44 is rotatably connected to the rear of the tray frame 41.

[0032] It is worth noting that the plate frame 41, the front support rod 43, the rear support rod 44, and the seat plate 3 form a four-bar linkage mechanism. As long as the rear support rod 44 is unlocked and rotated, the plate 4 can be folded.

[0033] The specific structure of the rotating joint 6 is as follows: a front foot rotating seat 61 is provided at the upper end of the front foot 1, a rear foot rotating seat 62 is provided at the upper end of the rear foot 2, a plate rotating seat 63 is provided at the lower end of the rear support rod 44, a seat plate rotating seat 64 is provided on the seat plate 3, and a backrest rotating seat 65 is provided at the lower end of the backrest 5. The front foot rotating seat 61, the rear foot rotating seat 62, the plate rotating seat 63, the seat plate rotating seat 64, and the backrest rotating seat 65 are rotatably connected to each other, so that the front foot, the rear foot, the plate, the seat plate, and the backrest can be folded and unfolded around the rotating joint.

[0034] The locking mechanism 7 includes a locking seat 71 fixed relative to the rotating seat 64. A first locking structure is provided between the locking seat 71 and the rotating seat 63 to restrict the rotation of the rotating seat 63; a second locking structure is provided between the locking seat 71 and the rear foot rotating seat 62 to restrict the rotation of the rear foot rotating seat 62; and a third locking structure is provided between the locking seat 71 and the front foot rotating seat 61 and the rear foot rotating seat 62 to restrict the relative rotation of the front foot rotating seat 61 and the rear foot rotating seat 62.

[0035] like Figure 3As shown, the first locking structure includes a slider 72 slidably connected to the lock base 71, and a first tongue 721 is provided on the slider 72. The plate rotating base 63 is provided with several first slots 631 into which the first tongue 721 can be inserted, thereby restricting the rotation of the plate rotating base 63. A first return spring 73 is provided between the slider 72 and the lock base 71 to elastically press the first tongue 721 against the first slot 631. A first pull rope 74 is connected to the slider 72, and the other end of the first pull rope 74 is connected to a first unlock button 75. Pressing the first unlock button 75 drives the first tongue 721 to disengage from the corresponding first slot 631, thereby unlocking the plate rotating base 63 and allowing it to rotate.

[0036] like Figure 5 As shown, the second locking structure includes a second tongue 722 disposed on the slider 72, and a second slot 621 on the rear foot rotating seat 62 into which the second tongue 722 can be inserted. Pressing the first unlock button 75 simultaneously drives the second tongue 722 to disengage from the corresponding second slot 621, thereby unlocking the rear foot rotating seat 62 and enabling it to rotate.

[0037] It is worth noting that the first unlock button 75 and slider 72 can be used for multiple purposes, as they can be used to unlock both the first and second locking structures.

[0038] like Figure 3-4 As shown, the third locking structure includes a first spline groove 611 on the front foot rotating seat 61, a second spline groove 622 on the rear foot rotating seat 62, a spline 76 between the first spline groove 611 and the second spline groove 622, and a second return spring 77 that presses the spline 76 against the direction of the second spline groove 622. The spline 76 has a shallow groove 761, within which a deep groove 762 is formed. The lock seat 71 has a tongue 711, which rotates with the lock seat 71 and slides within the shallow groove 761 and the deep groove 762. When the tongue 711 is in the shallow groove 761, the spline 76 disengages from the first spline groove 611 and remains only in the second spline groove 622; when the tongue 711 is in the deep groove 762, the spline 76 is simultaneously inserted into both the first spline groove 611 and the second spline groove 622, restricting their relative rotation.

[0039] Preferred, such as Figure 6As shown, the plate body 42 is detachably connected to the plate frame 41 via a quick-release structure. The quick-release structure includes several latches 421 on the plate body 42 and several slots 411 on the plate frame 41 into which the corresponding latches 421 can be inserted. A second unlocking button 45 is slidably connected to the plate body 42, and a locking groove 412 is provided on the plate frame 41 into which the second unlocking button 45 can be inserted. A third return spring 46 is provided between the second unlocking button 45 and the plate body 42 to elastically press the second unlocking button 45 against the locking groove 412.

[0040] More preferably, the cross-sections of the latch 421 and the locking groove 412 are both T-shaped.

[0041] like Figure 3 As shown, the angle adjustment mechanism 8 includes a locking disc 81 fixed relative to the seat plate rotating base 64. The locking disc 81 has a long arc-shaped opening 811 and multiple short-position openings 812 on its side wall. An adjusting block 82 is slidably connected to the backrest 5, and the adjusting block 82 can extend into and be inserted into the long arc-shaped opening 811 and the short-position openings 812. When the adjusting block 82 is inserted into the long arc-shaped opening 811, the backrest 5 can still rotate in the folding direction. When the adjusting block 82 is inserted into different short-position openings 812, the backrest 5 is at different unfolding angles. A fourth return spring 83 is provided between the adjusting block 82 and the backrest 5 to press the adjusting block 82 towards the locking disc 81. A second pull rope 84 is connected to the adjusting block 82, and the other end of the second pull rope 84 is connected to an adjusting knob 85 slidably connected to the backrest 5.

[0042] The main innovation of this utility model is that the plate 4 participates in the overall folding process of the dining chair. Through the rotating joint 6, the locking mechanism 7, and the connection between the plate and the seat, the folding of the plate and the folding of the dining chair are linked.

[0043] The advantages resulting from this are mainly reflected in the following aspects:

[0044] 1) Convenient folding: Since the folding of the plate 4 is linked to the folding of the dining chair, users do not need to operate the plate separately, which simplifies the folding process, greatly improves folding efficiency, and makes it more convenient and faster.

[0045] 2) Space saving: The folding of the plates makes the overall folded dining chair smaller, saving storage space and making it easier for the family to store and carry.

[0046] 3) Compact structure: Through reasonable design of rotating joints and connecting structures, the dining chair remains stable when unfolded, and has a compact structure when folded, avoiding loosening and collision of parts.

[0047] 4) Enhanced safety: The locking mechanism 7 is designed to effectively lock all parts of the dining chair, including the tray, ensuring the stability and safety of the chair during use and preventing accidents.

[0048] 5) Easy to clean: The detachable tray body 42 makes it easy for users to clean and maintain, improving the hygiene performance of the dining chair.

[0049] In summary, this utility model provides a children's dining chair that can be quickly folded. By linking the folding of the tray with the overall folding process of the chair, it effectively solves the problems of cumbersome folding and large size of existing dining chairs, and significantly improves the user experience.

[0050] Without departing from the spirit and scope of this utility model, those skilled in the art can make various modifications and improvements to the above embodiments. For example, the specific structures of the quick-release structure, locking mechanism, and angle adjustment mechanism can adopt other equivalent solutions. These modifications and improvements should all be considered to fall within the protection scope of this utility model.

Claims

1. A child's dining chair which is capable of being quickly collapsed, characterised in that: The chair comprises a front leg (1), a rear leg (2), a seat plate (3), a dining plate (4) and a backrest (5), and a rotating joint (6) is arranged between the front leg (1), the rear leg (2), the seat plate (3), the dining plate (4) and the backrest (5) to rotatably connect the five together, the rotating joint (6) is connected with a locking mechanism (7) for unlocking and locking the front leg (1), the rear leg (2), the seat plate (3) and the dining plate (4), and an angle adjusting mechanism (8) for locking and unlocking and adjusting the angle of the backrest (5); The dining plate (4) comprises a dining plate framework (41), a dining plate body (42) arranged on the dining plate framework (41), and a plurality of front support rods (43) and rear support rods (44) movably connected between the dining plate framework (41) and the seat plate (3), and the lower end of the front support rod (43) is rotatably connected to the front part of the seat plate (3), the upper end of the front support rod (43) is rotatably connected to the front part of the dining plate framework (41), and the upper end of the rear support rod (44) is rotatably connected to the rear part of the dining plate framework (41). The rotating joint (6) comprises a front leg rotating seat (61) arranged at the upper end of the front leg (1), a rear leg rotating seat (62) arranged at the upper end of the rear leg (2), a dining plate rotating seat (63) arranged at the lower end of the rear support rod (44), a seat plate rotating seat (64) arranged on the seat plate (3), and a backrest rotating seat (65) arranged at the lower end of the backrest (5), and the front leg rotating seat (61), the rear leg rotating seat (62), the dining plate rotating seat (63), the seat plate rotating seat (64) and the backrest rotating seat (65) are rotatably connected together. The locking mechanism (7) comprises a lock seat (71) fixed relative to the seat plate rotating seat (64), a first locking structure for limiting the rotation of the dining plate rotating seat (63) is arranged between the lock seat (71) and the dining plate rotating seat (63), a second locking structure for limiting the rotation of the rear leg rotating seat (62) is arranged between the lock seat (71) and the rear leg rotating seat (62), and a third locking structure for limiting the relative rotation of the front leg rotating seat (61) and the rear leg rotating seat (62) is arranged between the lock seat (71) and the front leg rotating seat (61) and the rear leg rotating seat (62).

2. A child's dining chair according to claim 1 wherein: The first locking structure comprises a sliding block (72) slidingly connected to the lock seat (71), a first insertion tongue (721) is arranged on the sliding block (72), a plurality of first insertion grooves (631) are arranged on the dining plate rotating seat (63) and can be inserted by the first insertion tongue (721) to limit the rotation of the dining plate rotating seat (63), a first return spring (73) is arranged between the sliding block (72) and the lock seat (71) to elastically press the first insertion tongue (721) towards the first insertion grooves (631), a first pulling rope (74) is connected to the sliding block (72), and the other end of the first pulling rope (74) is connected with a first unlocking button (75).

3. A child's dining chair according to claim 2 wherein: The second locking structure comprises a second insertion tongue (722) arranged on the sliding block (72), and a second insertion groove (621) is arranged on the rear leg rotating seat (62) and can be inserted by the second insertion tongue (722).

4. A child's dining chair according to claim 1 or claim 3, wherein: The third locking structure comprises a first spline groove (611) arranged on the front foot rotating seat (61), a second spline groove (622) arranged on the rear foot rotating seat (62), a spline (76) arranged between the first spline groove (611) and the second spline groove (622), and a second reset spring (77) pressing the spline (76) towards the second spline groove (622), the spline (76) is provided with a shallow groove (761), the shallow groove (761) is provided with a deep groove (762), the locking seat (71) is provided with a top tongue (711) capable of rotating and sliding in the shallow groove (761) and the deep groove (762), when the top tongue (711) is in the shallow groove (761), the spline (76) is separated from the first spline groove (611) and only inserted into the second spline groove (622), when the top tongue (711) is in the deep groove (762), the spline (76) is inserted into the first spline groove (611) and the second spline groove (622) at the same time.

5. A child's dining chair according to claim 1 wherein: The dish body (42) is detachably connected to the dish framework (41) through a quick release structure.

6. A child's dining chair according to claim 5 wherein: The quick release structure comprises a plurality of clamping tongues (421) arranged on the dish body (42), and a plurality of clamping grooves (411) arranged on the dish framework (41) and capable of inserting the corresponding clamping tongues (421), the dish body (42) is further slidably connected with a second unlocking button (45), the dish framework (41) is provided with a locking groove (412) capable of inserting the second unlocking button (45), and a third reset spring (46) is arranged between the second unlocking button (45) and the dish body (42) and elastically presses the second unlocking button (45) towards the locking groove (412).

7. A child's dining chair according to claim 6 wherein: The clamping tongue (421) and the locking groove (412) are both T-shaped in cross section.

8. A child's dining chair according to claim 1 wherein: The angle adjusting mechanism (8) comprises a locking disc (81) fixed relative to the seat plate rotating seat (64), the locking disc (81) is provided with a long arc-shaped opening (811) and a plurality of short gear openings (812), the backrest (5) is slidably connected with an adjusting block (82) capable of extending to and being inserted into the long arc-shaped opening (811) and the short gear opening (812), and when the adjusting block (82) is inserted into the long arc-shaped opening (811), the backrest (5) can still rotate in the folding direction, a fourth reset spring (83) is arranged between the adjusting block (82) and the backrest (5) and presses the adjusting block (82) towards the locking disc (81), the adjusting block (82) is connected with a second pulling rope (84), and the other end of the second pulling rope (84) is connected with an adjusting knob (85) slidably connected on the backrest (5).

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