Child dining chair support and child dining chair

Abstract

The utility model discloses a child dining chair support and a child dining chair, the child dining chair support has an unfolded state and a folded state which are opposite, the child dining chair support comprises a supporting leg assembly and a bottom frame, and the supporting leg assembly comprises a first supporting leg and a second supporting leg which are rotationally matched around a first axis; in the unfolded state, the tops of the two supporting feet are close, the bottoms of the two supporting feet are forked, and in the folded state, the two supporting feet are close to each other. One side of the bottom frame is hinged to the first supporting leg around a second axis, the other side of the bottom frame is locked and fixed to the second supporting leg, in the unfolded state, the bottom frame is fixed to the forked portion of the two supporting legs, and in the folded state, the bottom frame is unlocked from the second supporting leg and is folded towards the first supporting leg around the second axis. One side of the bottom frame is hinged to the first supporting leg, the other side of the bottom frame and the second supporting leg are locked and fixed in the unfolded state, the bottom frame structure is kept complete, the structural strength is improved, the locking position is located at the second supporting leg, and the appearance is more concise.

Description

Technical Field

[0001] This application relates to the technical field of children's dining chairs, specifically a foldable children's dining chair frame and a children's dining chair. Background Technology

[0002] Existing foldable children's high chairs, such as the foldable high chair frame disclosed in patent document CN202515120U, include a front frame and a rear frame hinged at the top, a front base rod hinged to the front frame, and a rear base rod hinged to the rear frame. The front and rear base rods are hinged to each other, and in the unfolded state, the hinge position between the two base rods is locked. The hinge position requires an additional locking mechanism, placing higher demands on the structural strength and stability of the hinge position or locking mechanism. Furthermore, the hinge position is exposed between the front and rear frames, resulting in a less streamlined appearance. Utility Model Content

[0003] This application provides a children's dining chair frame with higher structural strength and a simpler appearance.

[0004] This application provides a foldable children's high chair support, having a relatively unfolded state and a folded state, the children's high chair support comprising:

[0005] The support leg assembly includes a first support leg and a second support leg that rotate around a first axis. In the unfolded state, the tops of the two support legs are close together and the bottoms are spread apart. In the folded state, the two support legs are close together.

[0006] The bottom frame is hinged to the first support leg around the second axis on one side and locked to the second support leg on the other side. In the unfolded state, the bottom frame is fixed to the forked part of the two support legs. In the folded state, the bottom frame is released from the locking of the second support leg and moves towards the first support leg around the second axis.

[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] Optionally, the second support leg includes:

[0009] The second support consists of two struts arranged side by side;

[0010] The second cross brace is connected between the two second support rods. In the unfolded state, the bottom frame is locked and fixed to the second cross brace and / or the second support rod.

[0011] Optionally, the child high chair support also includes:

[0012] The linkage rod is hinged between the base frame and the second support leg;

[0013] The linkage rod, the base frame, and the two support legs form a deformable linkage mechanism to adapt to the state switching of the child high chair support.

[0014] Optionally, in the unfolded state, the linkage mechanism is triangular, and in the folding state, the linkage mechanism is concave quadrilateral.

[0015] Optionally, the first support leg includes:

[0016] The first strut consists of two struts arranged side by side, with the end of each second strut hinged to the first strut on the corresponding side.

[0017] Optionally, each of the first struts and the second strut on the same side forms a herringbone structure, with the top of the first strut higher than the second strut.

[0018] Optionally, the bottom frame is U-shaped, with the two open sides of the U-shape hinged to the first support leg, and the closed side of the U-shape engaging with the second support leg.

[0019] Optionally, the bottom frame includes:

[0020] The base rod consists of two rods arranged side by side, with one end of each base rod hinged to the first support leg.

[0021] The reinforcing rods are used to fix the other ends of each base rod together.

[0022] Optionally, the bottom rod has a receiving groove along its own length direction, and at least a portion of the linkage rod is placed into the receiving groove in the unfolded state and / or folded state.

[0023] Optionally, there are two linkage rods, with one end of each linkage rod hinged to the middle of the bottom rod on the corresponding side, and the other end hinged to the second support rod or the second cross brace on the corresponding side.

[0024] Optionally, the bottom frame is provided with a positioning port, which engages with the second support leg in the unfolded state.

[0025] Optionally, the bottom frame is provided with a movable locking member near the positioning port. In the unfolded state, the movable locking member cooperates with the second support leg to restrict the bottom frame.

[0026] Optionally, the positioning port is opened on the bottom rod and located adjacent to the reinforcing rod.

[0027] Optionally, the bottom frame is provided with a first unlocking component that is linked to the movable locking component.

[0028] Optionally, the first unlocking element is disposed on the reinforcing rod.

[0029] Optionally, the second support rod has a limiting hole, and the movable locking member is movably inserted into the limiting hole.

[0030] Optionally, the movable locking member is oscillatingly mounted on the bottom frame, and in the unfolded state, the movable locking member holds the second cross brace.

[0031] Optionally, a first cross brace is provided between the bottoms of the two first struts.

[0032] Optionally, the first cross brace and the bottom frame form a quadrilateral.

[0033] This application also provides a foldable children's high chair support, having a relatively unfolded state and a folded state, the children's high chair support comprising:

[0034] The side frames are two oppositely arranged. Each side frame includes a first support rod and a second support rod that rotate around a first axis. In the unfolded state, the tops of the two support rods are close together and the bottoms are spread apart. In the folded state, the two support rods are close together.

[0035] The bottom frame is hinged to the first support rod on one side around the second axis, and locked to the second support rod on the other side. In the unfolded state, the bottom frame is fixed to the forked part of the two support rods. In the folded state, the bottom frame is released from the lock of the second support rod and moves towards the first support rod around the second axis.

[0036] Optionally, a structure is also provided between the two side frames:

[0037] The first horizontal brace is fixedly connected to the bottom of the first support rod of the two side frames;

[0038] The second cross brace is fixedly connected to the bottom of the second support rod of the two side frames.

[0039] Optionally, the space between the two side frames can be used to install the backrest and support components of a children's high chair.

[0040] Optionally, the child high chair support also includes:

[0041] A linkage rod is hinged between the bottom frame and the second support rod;

[0042] The linkage rod, together with the base frame and the two support rods, forms a deformable linkage mechanism to adapt to the state switching of the child high chair support.

[0043] This application also provides a foldable children's dining chair, comprising:

[0044] The bracket may be any of the children's dining chair brackets described above;

[0045] The support component is installed on the child high chair frame.

[0046] Optionally, in the unfolded state, one of the first support leg and the second support leg serves as the front leg, and the other serves as the opposite rear leg, with the support member height-adjustable and mounted on the front leg.

[0047] Optionally, the bracket may also include a guide rail and a connecting seat that slides and positions with the guide rail, and the load-bearing member is mounted on the connecting seat.

[0048] Optionally, the carrier is detachably mounted on the connecting seat, and the carrier is provided with a first locking mechanism that interacts with the bracket to maintain its relative position with the guide rail.

[0049] Optionally, the bracket is provided with a plurality of position holes spaced apart along the extension direction of the guide rail, and the first locking mechanism cooperates with the corresponding position hole to keep the carrier in the current position.

[0050] Optionally, the connecting seat has an alignment hole, and the first locking mechanism includes a first locking pin, which passes through the alignment hole and enters the corresponding gear hole.

[0051] Optionally, the carrier is rotatably mounted on the connecting seat and has a flat state and a folded state relative to the bracket, respectively adapting to the unfolded state and folded state of the bracket.

[0052] Optionally, when viewed along the width direction, the support member is obscured by the first support leg and / or the second support leg in the folded state.

[0053] Optionally, the carrier and the connecting seat are rotatably engaged about a third axis, and the carrier is further provided with a second locking mechanism that interacts with the connecting seat to keep the carrier in a flat position;

[0054] The carrier is also provided with a third locking mechanism that interacts with the connecting seat to keep the carrier in a folded state.

[0055] Optionally, the connecting seat has two locking holes, the second locking mechanism has a second locking pin that engages with one of the locking holes, and the third locking mechanism has a third locking pin that engages with the other locking hole.

[0056] Optionally, the first locking pin defines the third axis, and the carrier is rotatably mounted on the connecting seat around the first locking pin.

[0057] Optionally, the support member has a protruding post on its side, and the connecting seat has a groove with an open top to accommodate the protruding post. The engagement portion of the protruding post and the groove has matching arc surfaces to accommodate the flipping of the support member relative to the connecting seat.

[0058] Optionally, the first locking structure includes:

[0059] The first locking pin;

[0060] The first operating element is linked with the first locking pin to drive it out of the gear hole;

[0061] A first elastic element acts on the first locking pin to extend into the stop hole.

[0062] The second locking mechanism includes:

[0063] The second locking pin;

[0064] The second operating element is linked with the second locking pin to drive the second locking pin out of the corresponding lock hole;

[0065] The second elastic element acts on the second locking pin to make it extend into the corresponding lock hole.

[0066] The third locking mechanism includes:

[0067] The third locking pin;

[0068] The third operating component is linked with the third locking pin to drive the third locking pin out of the corresponding lock hole;

[0069] The third elastic element acts on the third locking pin to make it extend into the corresponding lock hole.

[0070] Optionally, the high chair may also include:

[0071] The backrest is mounted on the bracket and positioned above the seat cushion;

[0072] The plate is detachably attached to the support.

[0073] Optionally, the support member includes two arranged vertically, serving as a seat cushion and a footrest, respectively.

[0074] Optionally, the support member is plate-shaped.

[0075] Optionally, the plate can be detachably mounted on the bracket.

[0076] Optionally, the plate insertion and positioning device is installed on the front foot.

[0077] Optionally, the bracket is fixed with a guide seat, and the guide seat has a positioning hole;

[0078] The plate slides with the guide seat, and the plate is provided with a fourth locking mechanism that cooperates with the positioning hole to prevent the plate from detaching from the guide seat.

[0079] Optionally, the fourth locking mechanism includes:

[0080] A locking hook is oscillatingly mounted on the plate, with one end of the locking hook being a head that mates with the positioning hole and the other end being a tail.

[0081] The fourth elastic element drives the head into the positioning hole;

[0082] The fourth operating component, movably mounted on the plate, is used to drive the head away from the positioning hole.

[0083] Optionally, the backrest includes two backrests arranged vertically, with the plate positioned between the two backrests.

[0084] Optionally, the two backrests are each independently fixedly connected to the bracket or detachably connected.

[0085] Optionally, one of the backrests can be detachably mounted on the plate.

[0086] Optionally, the two sides of the backrest serve as connecting parts, and the plate is provided with quick-release buckles that cooperate with each connecting part.

[0087] This application also provides a children's high chair, including:

[0088] A children's high chair support includes two side frames arranged opposite each other, with the side facing each other being the inner side and having multiple height adjustment holes and a second sliding groove.

[0089] The third cross brace is connected between the two side frames, and both ends of the third cross brace are equipped with positioning pins that engage with the height adjustment holes.

[0090] The guide plate is fixed to the third cross brace and extends into the second slide groove;

[0091] The seat cushion is rotatably positioned and mounted on the third cross brace.

[0092] Optionally, the guide plate includes a body that slides against the side frame and a guide portion that bends outward from the body;

[0093] The outer periphery of the end of the third cross brace is fixed to the body, and the guide portion is inserted into the second slide groove.

[0094] Optionally, the end of the third cross brace is provided with a receiving hole, and the positioning pin is slidably installed in the receiving hole along the length of the third cross brace;

[0095] The receiving hole is also provided with a first elastic element that drives the positioning pin to be inserted into the corresponding height adjustment hole;

[0096] The outer periphery of the third cross brace is slidably fitted with a first knob that is linked to the positioning pin.

[0097] Optionally, a connecting groove is provided on the side edge of the main body, and the end of the third cross brace is fixed to the connecting groove.

[0098] Optionally, the side frame includes a first support rod and a second support rod that are rotatably coupled around a first axis. In the unfolded state, the bottoms of the first support rod and the second support rod are arranged in a forked manner.

[0099] Both the height adjustment hole and the second slide groove are arranged along the length of the first support rod.

[0100] Optionally, the first strut includes a frame and a decorative shell, the decorative shell covering at least the outer side of the frame, and the first groove is formed on the inner side of the frame.

[0101] Optionally, the third cross brace is a frame structure, including at least a main rod and an auxiliary rod arranged horizontally alongside the main rod. The positioning pin is installed at the end of the main rod, and the seat cushion is rotatably installed on the main rod, with the seat cushion and the auxiliary rod having a mutually cooperating anti-rotation mechanism.

[0102] Optionally, the anti-rotation mechanism includes:

[0103] The second locking tongue is slidably installed at the bottom of the seat cushion;

[0104] The second elastic element acts and drives the second locking tongue to clamp the auxiliary rod with the seat cushion to prevent rotation;

[0105] The second toggle switch, in conjunction with the second locking tongue, drives the second locking tongue to disengage from the auxiliary rod.

[0106] Optionally, it may also include a foot pedal, with the third cross brace and the guide plate configured accordingly for the foot pedal.

[0107] Optionally, a backrest and a tray are also included, which are respectively connected between the two side frames.

[0108] The children's high chair bracket of this application has one side of the bottom frame hinged to the first support leg, and the other side and the second support leg locked and fixed in the unfolded state, which keeps the bottom frame structure intact, improves the structural strength, and the locking position is located at the second support leg, making the appearance more concise. Attached Figure Description

[0109] Figure 1 This is a structural view of a child high chair support according to an embodiment of this application in its unfolded state;

[0110] Figure 2 for Figure 1 Structural view of a children's high chair frame during the folding process;

[0111] Figure 3 for Figure 1 Structural view of a children's high chair frame in its folded state;

[0112] Figure 4 for Figure 1 Front view of a children's high chair support in its unfolded state;

[0113] Figure 5 for Figure 4 Front view of the children's high chair frame during the folding process;

[0114] Figure 6 for Figure 4 Front view of the children's high chair support in its folded state;

[0115] Figure 7 This is a structural view of a child high chair support during folding, according to an embodiment of this application.

[0116] Figure 8 This is a partial view of the bottom frame of a children's high chair support according to an embodiment of this application;

[0117] Figure 9 This is a partial view of a child high chair bracket at the positioning opening according to an embodiment of this application;

[0118] Figure 10 This is a structural view of a child high chair bracket in the locked state according to an embodiment of this application;

[0119] Figure 11 for Figure 10 Structural view of the first unlocking component when the second locking mechanism is released;

[0120] Figure 12 This is an exploded view of the first and second unlocking components of a children's high chair bracket according to an embodiment of this application;

[0121] Figure 13 This is a structural view of a children's high chair in its unfolded state, according to an embodiment of this application.

[0122] Figure 14 for Figure 13 Structural view of the load-bearing component in the folded-down state of a children's high chair;

[0123] Figure 15 for Figure 13 Structural view of a children's high chair in its folded state;

[0124] Figure 16 This is a partial view of a child high chair according to an embodiment of the present application at one of its support members;

[0125] Figure 17 This is a partial enlarged view of the connecting seat of a children's high chair according to an embodiment of this application;

[0126] Figure 18 for Figure 17 Exploded view of the central connector, carrier, and front foot;

[0127] Figure 19 for Figure 18 An exploded view from another perspective;

[0128] Figure 20 This is a partial view of a children's high chair at the tray according to an embodiment of this application;

[0129] Figure 21 for Figure 20 A partial view of a Chinese food plate during disassembly or assembly;

[0130] Figure 22 This is an exploded view of the base of a children's high chair according to an embodiment of this application;

[0131] Figure 23 This is a partial view of the quick-release buckle in a children's high chair according to another embodiment of this application;

[0132] Figure 24 This is a partial view of the quick-release buckle in a child's high chair according to an embodiment of this application, viewed from another angle.

[0133] Figure 25 This is a structural view of a children's high chair according to an embodiment of this application;

[0134] Figure 26 for Figure 25 Structural view of a children's high chair with the seat height lowered;

[0135] Figure 27 for Figure 25 Structural view of the children's high chair in its folded state;

[0136] Figure 28 This is a structural view of a children's high chair according to another embodiment of this application;

[0137] Figure 29 for Figure 25 A structural view of a children's high chair from another perspective;

[0138] Figure 30 This is a front view of an embodiment of this application;

[0139] Figure 31 for Figure 30Partial sectional view along the AA direction;

[0140] Figure 32 for Figure 31 Partial sectional view along the BB direction;

[0141] Figure 33 This is a partial exploded view of a child high chair according to an embodiment of this application at the positioning pin;

[0142] Figure 34 An exploded view of the seat cushion and cross brace of a children's high chair according to an embodiment of this application;

[0143] Figure 35 This is a structural view of a children's high chair according to another embodiment of this application;

[0144] Figure 36 for Figure 35 A structural view of a children's high chair in its folded state after the tray has been removed;

[0145] Figure 37 for Figure 36 A structural view of a children's high chair from another perspective.

[0146] The annotations in the figure are explained as follows:

[0147] 1000. Children's high chair frame; 11. First axis; 12. Second axis;

[0148] 110. First support leg; 111. First support pole; 112. First cross brace;

[0149] 120. Second support leg; 121. Second support pole; 122. Second cross brace;

[0150] 130. Guide rail; 131. Stop hole; 132. Sliding groove; 140. Connecting seat; 141. Alignment hole; 142. Second locking hole; 143. Third locking hole; 144. Groove; 145. Guide part;

[0151] 200, base frame; 210, base rod; 211, receiving groove; 212, positioning port; 220, reinforcing rod; 230, first unlocking component; 231, guide plate; 232, first sliding groove; 233, first mating area; 234, second mating area; 240, second unlocking component; 241, blocking part; 242, guide post;

[0152] 300, Linkage rod; 400, Backrest; 410, First backrest; 420, Second backrest; 421, Joint; 430, Connecting bracket; 431, Slot; 440, First connecting arm; 450, Wrench; 460, Second connecting arm;

[0153] 500, Bearing component; 510, First locking pin; 512, First operating component;

[0154] 520. Second locking pin; 522. Second operating component;

[0155] 530. Third locking pin; 532. Third operating component;

[0156] 540. Support plate; 541. Mounting cover; 550. Protruding column;

[0157] 600. Dinner plate; 610. Guide seat; 611. Positioning hole; 620. Base; 621. Locking hook; 622. Head; 623. Tail; 630. Fourth operating component;

[0158] 101. Side frame; 721. Skeleton; 722. Decorative shell;

[0159] 730. Height adjustment hole; 740. Second slide rail;

[0160] 800, Third cross brace; 810, Positioning pin; 820, Accommodating hole; 830, Sixth elastic element; 840, First toggle switch; 850, Main rod; 860, Auxiliary rod; 861, Accommodating space;

[0161] 900, guide plate; 910, body; 911, mating groove; 920, guide section;

[0162] 560. Seat cushion; 561. Connector; 571. Second locking tongue; 572. Seventh elastic element; 573. Second toggle switch; 574. Angled surface; 580. Mounting base;

[0163] 590, foot pedal; 400, backrest; 600, plate. Detailed Implementation

[0164] 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.

[0165] 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.

[0166] 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.

[0167] In this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0168] See Figures 1-9 This application provides a foldable children's high chair support 1000, which has a relatively unfolded state (e.g., Figure 1 ) and folded state (e.g.) Figure 3 In the diagram, the children's high chair support 1000 has a front-to-back direction along the X direction and a width direction Y perpendicular to the X direction.

[0169] The children's high chair support 1000 includes a support leg assembly and a base frame 200. The support leg assembly includes a first support leg 110 and a second support leg 120 arranged front-to-back and rotatably engaging around a first axis 11. In the unfolded state, the tops of the two support legs are close together and the bottoms are spread apart. In the folded state, the two support legs are close together. One side of the base frame 200 along the X direction is hinged to the first support leg 110, and the other side is locked and fixed to the second support leg 120 in the unfolded state. In the unfolded state, the base frame 200 is fixed at the spread-out part of the two support legs, that is, near the bottom. The base frame 200 is used to pull the two support legs to keep them in the unfolded state.

[0170] In the folded state, the bottom frame 200 is released from the lock of the second support leg 120 and moves toward the first support leg 110 around the second axis 12. The way to move the bottom frame 200 together can be by using a transmission mechanism to achieve the folding linkage of the bottom frame 200, or by manually rotating the bottom frame 200 to move it together.

[0171] Compared with the prior art, the children's high chair bracket of this embodiment maintains the integrity of the bottom frame, thereby improving the structural strength of the children's high chair bracket in the unfolded state, and the locking mechanism is transferred to the second support leg, and the locking mechanism is located on the inside of the second support leg, making the appearance of the children's high chair bracket simpler.

[0172] The second support leg 120 includes two second support rods 121 arranged side by side along the width direction, and a second cross brace 122 connected between the two second support rods 121. In the unfolded state, the locking and fixing object of the bottom frame 200 is the second cross brace 122, or the second support rods 121, or both.

[0173] The first support leg 110 includes two first support rods 111 arranged side by side along the width direction, and a first cross brace 112 connecting the two first support rods 111. The ends of the second support rods 121 on each side are hinged to the corresponding first support rod 111. The first support rods 111 and the second support rods 121 are straight rods extending in one direction, and their cross-sectional shape can be circular, square, or rectangular, etc. In one embodiment, each first support rod 111 and the second support rod 121 on the same side form a herringbone structure, and the top of the first support rod 111 is higher than the second support rod 121. The first support rods 111 and the second support rods 121 on the same side form a side frame, that is, the children's high chair support 1000 includes two side frames arranged side by side along the width direction.

[0174] In one embodiment, the children's high chair support 1000 further includes a linkage rod 300 hinged between the base frame 200 and the second support leg 120. The linkage rod 300, the base frame 200, and the two support legs form a deformable linkage mechanism to adapt to the state switching of the children's high chair support 1000 and the coordinated folding of the two support legs and the base frame during folding. The linkage mechanism is a four-bar linkage; in the unfolded state, the base frame 200 and the linkage rod 300 overlap, making the linkage mechanism as... Figure 4 The design presents a triangular shape, with a simple appearance and convenient unfolding / folding operation. It should be noted that in the unfolded state, the base frame 200 and the second support leg 120 are locked and fixed together. Therefore, the base frame 200 acts as a load-bearing component, while the linkage rod 300 is not under load; that is, the two support legs and the base frame maintain a stable triangular structure. During folding, as... Figure 5 As shown, the linkage mechanism presents a concave quadrilateral shape. Furthermore, in the folded state, the linkage 300 and the base frame 200 overlap.

[0175] In a preferred embodiment, the first support rod 111 and the second support rod 121 on the same side are arranged in the same plane. In the folded state, the first support rod 111 and the second support rod 121 are in contact with each other. The bottom frame 200 and the linkage rod 300 are arranged inside the first support rod 111 and are hidden by the first support rod 111 and the second support rod 121.

[0176] In one embodiment, the base frame 200 is U-shaped, which improves the structural strength of the base frame 200. The U-shape is hinged to the first support leg 110 on both sides of the opening, and the closed side of the U-shape engages with the second support leg 120. Specifically, the base frame 200 includes:

[0177] The bottom rods 210 are two rods arranged side by side, and one end of each bottom rod 210 is hinged to the first support rod 111.

[0178] The reinforcing rod 220 is used to fix the other ends of each bottom rod 210 together. Correspondingly, there are two linkage rods 300, one end of which is hinged to the middle of the bottom rod on the corresponding side, and the other end is hinged to the second support rod 121 or the second cross brace 122 on the corresponding side. Among them, the first cross brace 112 and the bottom frame 200 are on the same horizontal plane, and in the unfolded state, the first cross brace 112 and the bottom frame 200 form a quadrilateral.

[0179] Among them, such as Figure 7 As shown, the base rod 210 has a receiving groove 211 along its length. In the unfolded state and / or folded state, at least a portion of the linkage rod 300 is inserted into the receiving groove 211. This achieves the aforementioned overlapping effect between the base frame 200 and the linkage rod 300.

[0180] In one embodiment, the bottom frame 200 is provided with a positioning opening 212, which faces downwards. In the unfolded state, the positioning opening 212 engages with the second support leg 120 for positioning. Specifically, as shown in the figure, the positioning opening 212 is located on the bottom rod 210 and engages with the second cross brace 122 in the unfolded state. The positioning opening 212 is located near the reinforcing rod 220. Viewed from the rear, in the unfolded state, the reinforcing rod 220 obstructs the second cross brace 122.

[0181] In another embodiment, the positioning port 212 is formed on the reinforcing rod 220 and engages with the second cross brace 122 in the unfolded state. Preferably, the reinforcing rod 220 has a groove for accommodating the second cross brace 122.

[0182] See Figures 7-12 The base frame 200 has a movable locking member near the positioning port 212. The movable locking member is rotatably and / or slidably mounted on the base frame 200. The movable locking member has a locked state that engages with the second support leg to restrict the rotation of the base frame 200, and an unlocked state that releases its engagement with the second support leg 120 to allow the base frame 200 to rotate. The base frame 200 is provided with a first unlocking member 230 that is linked to the movable locking member. Specifically, the first unlocking member 230 is movably disposed on the reinforcing rod 220 and located on the rear side of the middle of the reinforcing rod 220. The first unlocking member 230 and the movable locking member are linked via a transmission component (e.g., a steel wire).

[0183] Regarding the locking method between the movable locking component and the second support leg:

[0184] In one embodiment, the second support rod has a limiting hole, and in the locked state, the movable locking member is movably inserted into the limiting hole.

[0185] In another embodiment, the second cross brace is a straight rod with a circular or square cross-section. The second cross brace shown in the figure is a round rod. The movable locking member is oscillatingly mounted on the bottom frame. In the unfolded state, the movable locking member holds the outer periphery of the second cross brace.

[0186] In one embodiment, a dual-locking mechanism is provided on the bottom frame 200, having a locked state that restricts the unlocking of the first unlocking member 230, and an unlocked state that allows the first unlocking member 230 to perform an unlocking operation. The dual-locking mechanism includes a second unlocking member 240 movably disposed on the reinforcing rod 220. In the locked state, the second unlocking member 240 has a first position that acts on the first unlocking member 230 to restrict its sliding switch to the unlocked state, and a second position that avoids the first unlocking member 230 and allows it to slide switch to the unlocked state.

[0187] The sliding directions of the first unlocking member 230 and the second unlocking member 240 are perpendicular to each other. A limiting mechanism is provided between the first unlocking member 230 and the second unlocking member 240 to restrict the sliding of the first unlocking member 230 to the unlocked state. The limiting mechanism includes a blocking part 241 provided on the second unlocking member 240. The blocking part 241 has a first position that cooperates with the first unlocking member 230 to restrict its sliding to the unlocked state, and a second position that releases its cooperation with the first unlocking member 230 and allows the first unlocking member 230 to slide to the unlocked state.

[0188] The limiting mechanism also includes a fifth elastic element (e.g., a spring) that acts on the second unlocking member 240 to reset it, while the blocking part 241 re-engages with the first unlocking member 230.

[0189] In one embodiment, the second unlocking member 240 includes a guide post 242 extending along its own movement direction, and a blocking portion 241 disposed on the guide post 242 and protruding radially outward. The first unlocking member 230 is provided with a guide plate 231, and the guide plate 231 has a first groove 232 extending along the sliding direction of the first unlocking member 230, through which the guide post 242 passes and engages with the first groove 232. Specifically, the first groove 232 is provided with a first mating area 233 that engages with the blocking portion 241, and a second mating area 234 that engages with the guide post 242. The cross-sectional shapes of the guide post 242 and the blocking portion 241 are both circles with different diameters, the first mating area 233 is circular, and the second mating area 234 is a strip-shaped groove extending along the sliding direction of the first unlocking member.

[0190] In actual operation, the blocking part 241 of the second unlocking member 240 enters the first slide groove 232 and engages with the first mating area 233, restricting the sliding of the first unlocking member 230. When the second unlocking member 240 is pressed, the blocking part 241 exits the first mating area 233, allowing the first unlocking member 230 to slide and switch to the unlocked state.

[0191] In one embodiment, the second unlocking member 240 and the first unlocking member 230 are unlocked sequentially. The blocking part 241 is restricted by the guide plate 231, limiting the sliding reset of the second unlocking member 240. There are two guide plates 231 arranged at intervals. During the sliding process of the first unlocking member 230, the blocking part 241 is located between the two guide plates 231.

[0192] See Figures 13-19 In one embodiment, a backrest 400 and a support member 500 for a child's high chair can be installed between the two side frames. The support member 500 supports the child's buttocks or feet, corresponding to a seat cushion and footrest. One of the first support leg 110 and the second support leg 120 is the front leg, and the other is the rear leg. In the illustration, the first support leg 110 is the front leg, and the second support leg 120 is the rear leg, with the first support leg 110 higher than the second support leg 120. The backrest 400 is positioned on top of the first support leg 110, and the support member 500 is height-adjustably mounted on the first support leg 110. After installing the backrest 400 and the support member 500, the child high chair bracket 1000 constitutes a foldable child high chair.

[0193] The child high chair support 1000 also includes a guide rail 130 and a connecting seat 140 that slides and positions with the guide rail 130. A support member 500 is mounted on the connecting seat 140. The support member 500 is detachably mounted on the connecting seat 140. The support member 500 has a first locking mechanism that interacts with the child high chair support 1000. The first locking mechanism has a locked state where the position of the support member 500 relative to the guide rail 130 is fixed, and an unlocked state that allows the support member 500 to move relative to the guide rail 130 to adjust its height. The guide rail 130 has a sliding groove 132 extending along the front leg, and the connecting seat 140 slides and engages with the sliding groove 132 at least partially.

[0194] The height of the support member 500 is adjustable by having multiple position holes 131 spaced apart along the extension direction of the guide rail 130 on the child high chair bracket 1000. A first locking mechanism cooperates with the corresponding position hole 131 to hold the connecting seat 140 together with the support member 500 in the current position. The connecting seat 140 has an alignment hole 141. The first locking mechanism includes a first locking pin 510. In the locked state, the first locking pin 510 passes through the alignment hole 141 and enters the corresponding position hole 131.

[0195] In one embodiment, the support member 500 is rotatably mounted on the connecting seat 140 and has a flat state and a folded state relative to the child high chair frame, respectively adapting to the unfolded and folded states of the child high chair frame. The support member 500 and the connecting seat 140 are rotatably engaged about a third axis. The support member 500 is also provided with a second locking mechanism that acts on the connecting seat 140 to maintain the flat state of the support member 500; the support member 500 is also provided with a third locking mechanism that acts on the connecting seat 140 to maintain the folded state of the support member. Viewed along the width direction, the support member 500 is covered by the first support leg 110 and / or the second support leg 120 in the folded state. In the figure, the support member 500 is installed between two first support rods 111. Viewed along the width direction, the support member 500 is covered and hidden by the first support rods 111 in the folded state, resulting in a simpler appearance.

[0196] The support member 500 has a protruding post 550 on its side, and the connecting seat 140 has a groove 144 with an open top to accommodate the protruding post 550. The mating part of the protruding post 550 and the groove 144 has matching arc surfaces to accommodate the flipping of the support member 500 relative to the connecting seat 140. The arc surface is an arc centered on a third axis. The groove 144 has an open top to facilitate the installation and disassembly of the support member 500 and the connecting seat 140. The protruding post 550 serves as the main load-bearing component between the support member 500 and the connecting seat 140.

[0197] The accompanying drawings in the instruction manual use a seat cushion as an example of a support component. The connecting base 140 has two locking holes: a second locking hole 142 adapted to the second locking mechanism and a third locking hole 143 adapted to the third locking mechanism. The second locking mechanism has a second locking pin 520 that mates with the second locking hole 142 and a third locking pin 530 that mates with the third locking hole 143.

[0198] The first locking pin 510, the second locking pin 520, and the third locking pin 530 are slidably mounted on the back of the carrier 500. The first locking mechanism further includes:

[0199] The first elastic element acts on the first locking pin 510 so that it is inserted into the stop hole 131 through the alignment hole 141;

[0200] The first operating member 512 is movably mounted on the carrier member 500 and is linked with the first locking pin 510. In the figure, the carrier member 500 includes a support plate 540 and a mounting cover 541 mounted on the back of the support plate 540. The first operating member 512 is slidably disposed on the mounting cover 541 and is linked with the first locking pins 510 on both sides in the width direction through a transmission member (e.g., a steel wire). The first elastic member 511 acts between the first operating member 512 and the mounting cover 541.

[0201] The second locking mechanism also includes:

[0202] The second elastic element acts on the second locking pin 520 so that it extends into the second locking hole 142 when aligned with the second locking hole 142;

[0203] The second operating element 522 is movably mounted on the support element 500 and is linked with the second locking pin 520. In the diagram, the second operating element 522 is a slider mounted on the mounting cover 541, two in number, each connected to one of the two second locking pins 520. The second elastic element acts between the second operating element 522 and the mounting cover 541. Since the second operating element 522 is fixedly connected to the second locking pin, it can be considered as a single unit; therefore, the second elastic element can be considered to act on the second locking pin 520.

[0204] The third locking mechanism also includes:

[0205] The third elastic element acts on the third locking pin 530 so that it extends into the third locking hole 143 when aligned with the third locking hole 143;

[0206] The third operating element 532 is movably mounted on the support element 500 and is linked with the third locking pin 530. In the figure, the third operating element 532 is a slider provided on the mounting cover 541, there are two of them and they are respectively connected to the two third locking pins 530. The third elastic element acts between the third operating element 532 and the mounting cover 541. The object of the third elastic element is the same as that of the second elastic element mentioned above, and can be regarded as acting on the third locking pin 530.

[0207] The first elastic element, the second elastic element, and the third elastic element are, for example, springs.

[0208] In one embodiment, the connecting seat 140 is provided with a guide portion 145 for guiding the second locking pin 520 and the third locking pin 530 into the corresponding lock holes, wherein the guide portion 145 is a sloped surface or an arc surface. During the process of rotating the support member 500 to the flat state, for example, the second locking pin 520 abuts against the guide portion 145 corresponding to the second lock hole 142 and is pressed and slid by it until it is aligned with the second lock hole 142, and then extends into the second lock hole 142 under the action of the second elastic member 521; or during the process of rotating the support member 500 to the folded state, the third locking pin 530 abuts against the guide portion 145 corresponding to the third lock hole 143 and is pressed and slid by it until it is aligned with the third lock hole 143, and then extends into the third lock hole 143 under the action of the third elastic member 531.

[0209] See Figures 20-22 In one embodiment, the children's high chair also includes a tray 600 disposed between the two side frames. Preferably, the tray 600 is detachably connected between the two side frames. The detachable connection method is that the tray 600 is inserted and positioned on the front leg (i.e., the first support leg 110), and specifically, both sides of the tray 600 in the width direction are inserted and engaged with the first support rod 111.

[0210] The first support rod 111 is fixed with a guide seat 610, which has a positioning hole 611. The plate 600 slides with the guide seat 610 in the X direction; specifically, the plate 600 is disassembled by sliding it forward. The plate 600 is equipped with a fourth locking mechanism that engages with the positioning hole 611 to prevent the plate 600 from disengaging from the guide seat 610. A base 620 is provided on the back of the plate 600, and the base 620 slides with the guide seat 610. The fourth locking mechanism includes:

[0211] The locking hook 621 is oscillatingly mounted on the base 620 of the plate 600. One end of the locking hook 621 is a head 622 that engages with the positioning hole 611, and the other end is a tail 623. The head 622 has a locked state that extends into the positioning hole 611 to restrict the plate 600 from disengaging from the guide seat 610, and an unlocked state that exits the positioning hole 611 to allow the plate 600 to slide away from the guide seat 610.

[0212] The fourth operating element 630 is movably mounted on the base 620 of the plate 600 and is used to drive the head 622 out of the positioning hole 611. Specifically, the fourth operating element 630 is a button that is slidably mounted on the base 620 and has an inclined surface between it and the tail 623 of the locking hook 621 to guide the locking hook 621 to the unlocked state.

[0213] A fourth elastic element (e.g., a spring) is used to drive the head 622 into the positioning hole 611. The object of the fourth elastic element can be the head or the tail.

[0214] See Figure 23 and Figure 24 In one embodiment, the backrest 400 includes two backrests arranged vertically: a first backrest 410 located at the top and a second backrest 420 located opposite each other. The plate 600 is positioned between the two backrests 400 in the height direction. Each of the two backrests 400 is independently and detachably connected to the first support rods 111 on both sides, for example, by a quick-release buckle.

[0215] The detachable connection between the tray 600 and the high chair support 1000 can also be in other ways. In another embodiment, the tray 600 can also be detachably connected to one of the backrests, with both sides of the backrest serving as connecting parts 421. The tray 600 is provided with quick-release buckles that cooperate with each connecting part 421. Specifically, taking the second backrest 420 as an example, the tray 600 is located above the second backrest 420 and closer to the second backrest 420 relative to the first backrest 410, and the second backrest 420 is plate-shaped. The quick-release buckles include:

[0216] The connecting card holder 430 is located on the back of the plate 600 and has a card slot 431 that is adapted to the connecting part 421, with the opening of the card slot 431 facing downward.

[0217] The first connecting arm 440 is rotatably mounted on the connecting bracket 430;

[0218] Wrench 450, rotatably mounted on connecting bracket 430;

[0219] The second connecting arm 460 is rotatably mounted on the wrench 450;

[0220] The second connecting arm 460 has a locked state that cooperates with the first connecting arm 440 to close the corresponding part of the joint 421, and an unlocked state that releases the cooperation with the first connecting arm 440 to release the corresponding part of the joint 421. The wrench 450 drives the second connecting arm 460 and the first connecting arm 440 to switch between the locked and unlocked states. The wrench 450 keeps the second connecting arm 460 and the first connecting arm 440 in the locked state by passing through the dead point.

[0221] The children's high chair bracket of this application has one side of the bottom frame hinged to the first support leg, and the other side and the second support leg locked and fixed in the unfolded state, which keeps the bottom frame structure intact, improves the structural strength, and the locking position is located at the second support leg, making the appearance more concise.

[0222] See Figures 25-33 This application also provides a children's dining chair, including a children's dining chair frame 100, a third cross brace 800, a guide plate 900, and a seat cushion 560. The children's dining chair frame 100 includes two side frames 101 arranged opposite each other. The side facing each other is the inner side, and the side facing away from each other is the outer side. Multiple height adjustment holes 730 and a second sliding groove 740 are arranged on the inner side of the side frame. The side frame 101 includes two support rods, namely a first support rod 111 and a second support rod 121. The side frame 101 has an unfolded state in which the two support rods are arranged in an inverted V shape and a folded state in which they are close to each other. The height adjustment holes 730 and the second sliding groove 740 are respectively opened on the corresponding two support rods.

[0223] The third cross brace 800 connects between the two side frames 101. Both ends of the third cross brace 800 have positioning pins 810 that engage with height adjustment holes 730. The positioning pins 810 are movably mounted on the third cross brace 800 and have a locking state where they extend into the height adjustment holes 730 to maintain the third cross brace 800 relative to the high chair support 100, and an unlocking state where they exit the height adjustment holes 730 to allow the third cross brace 800 to move relative to the high chair support 100 to change its height. The guide plate 900 is fixed to the third cross brace 800 and extends into the second slide groove 740, guiding the movement of the third cross brace 800 in the unlocked state.

[0224] The seat cushion 560 is rotatably mounted on the third cross brace 800 and has two configurations: a usage state where it is fixed relative to the third cross brace 800 and in a roughly horizontal position for a child to sit on, and a storage state where the two side frames are folded down. The height of the seat cushion 560 is directly adjustable via the third cross brace 800. The high chair includes a locking mechanism to maintain the seat cushion 560 in the usage state. This locking mechanism can be independent of the folding operation of the high chair frame, locking and unlocking it separately, or it can be linked to the folding of the high chair frame, for example, unlocking the locking mechanism when the high chair frame is folded.

[0225] In one embodiment, the high chair includes a footrest 590, which is mounted on the high chair frame via another cross brace. This cross brace may have the same structure as the third cross brace 800 of the seat cushion 560. In this embodiment, the footrest 590 and the seat cushion 560 have the same cross brace structure. The following embodiments and figures are illustrated using the third cross brace 800 of the seat cushion 560 as an example.

[0226] The children's high chair of this application features a cross brace that reinforces the structural strength of the chair frame and allows for height adjustment of the seat, footrest, and other components. The seat's rotational positioning relative to the cross brace does not affect the folded size of the chair frame; moreover, the seat unfolds when the chair frame is extended for use, eliminating the need for disassembly, reducing the risk of losing parts, and ensuring convenient use.

[0227] In one embodiment, the guide plate 900 includes a body 910 that slides against the side frame 101 and a guide portion 920 bent outward from the body 910. The outer periphery of the end of the third cross brace 800 is fixed to the body 910, and the guide portion 920 is inserted into the second slide groove 740. The guide plate 900 is an L-shaped sheet metal part. The body 910 abuts against or is close to the inner side of the child high chair frame, improving the stability of the third cross brace 800. The insertion connection method of the guide plate 900 facilitates assembly.

[0228] The children's high chair has a front and a rear side. The first support rod 111 is the front leg, and the second support rod 121 is the rear leg. The bottoms of the two support rods are arranged separately.

[0229] The height adjustment hole 730 and the second slide groove 740 are provided on the first support rod 111, and the height adjustment hole 730 and the second slide groove 740 extend along the length direction of the first support rod 111.

[0230] In one embodiment, the end of the third cross brace 800 has a receiving hole 820. A positioning pin 810 is slidably installed in the receiving hole 820 along the length of the third cross brace 800. A sixth elastic element 830, which drives the positioning pin 810 to insert into the corresponding height adjustment hole 730, is also provided in the receiving hole 820. A first dial 840, linked to the positioning pin 810, is slidably fitted onto the outer periphery of the third cross brace 800. The first dial 840 is slidably installed at the bottom of the third cross brace 800 and directly connected to the positioning pin 810. Moving the first dial 840 causes the positioning pin 810 to switch to the unlocked state. The sixth elastic element 830 can be a spring. During operation, both first dials 840 must be driven by both hands to release the locking pin, while simultaneously moving the third cross brace 800 to adjust the seat height.

[0231] The main body 910 has a connecting groove 911 on its side edge, and the end of the third cross brace 800 is fixed to the connecting groove 911. Specifically, the third cross brace 800 and the connecting groove 911 are welded or snapped together. In this embodiment, the round tube of the third cross brace 800 is snapped into the connecting groove 911 and welded to fix it. One radial side of the connecting groove 911 is open to facilitate the insertion of the third cross brace 800.

[0232] In one embodiment, the first support rod 111 includes a frame 721 and a decorative shell 722. The decorative shell 722 at least covers the outer side of the frame 721, and the second sliding groove 740 is formed on the inner side of the frame 721. The frame 721 can be made of a metal material with high structural strength, such as a metal profile, which is also easy to process. The decorative shell 722 can be made of plastic and is fastened to the frame 721. Plugs are provided at both ends of the first support rod 111 along its length. During assembly, the guide plates at both ends of the cross brace are inserted into the frame from one end, and then the plugs are assembled.

[0233] like Figure 29 , Figure 31 and Figure 34 In one embodiment, the third cross brace 800 is a frame structure, including at least a main rod 850 and an auxiliary rod 860 arranged horizontally alongside the main rod 850. A positioning pin 810 is installed at the end of the main rod 850. The seat cushion 560 is rotatably mounted on the main rod 850, and the seat cushion 560 and the auxiliary rod 860 have a mutually cooperating anti-rotation mechanism. The main rod 850 is a round tube, and a connector 561 is connected to the bottom of the seat cushion 560. The connector 561 and the seat cushion 560 form a space through which the main rod 850 passes. In the figure, the connector 561 has a U-shaped structure.

[0234] The anti-rotation mechanism has an engaged state that interacts with the auxiliary rod 860 to restrict and keep the seat cushion in use, and a released state that releases the interaction with the auxiliary rod 860, allowing the seat cushion 560 to rotate. The anti-rotation mechanism includes a second locking tongue 571 slidably mounted on the bottom of the seat cushion 560, a seventh elastic element 572 that acts and drives the second locking tongue 571 to clamp the auxiliary rod 860 with the seat cushion 560 to prevent rotation, and a second toggle 573 that is linked with the second locking tongue 571 and drives the second locking tongue 571 to disengage from the auxiliary rod 860.

[0235] The auxiliary rod 860 is a U-shaped rod, with both ends inserted into and fixed to the main rod 850, forming an accommodating space 861 with the main rod 850. The anti-rotation mechanism also includes a mounting base 580 for mounting the second locking tongue 571, the seventh elastic element 572, and the second dial 573. The mounting base 580 is fixed to the bottom of the seat cushion 560 and located within the accommodating space 861. At least in the engaged state, the second locking tongue 571 extends out of the mounting base 580. The two ends of the seventh elastic element 572 act on the mounting base 580 and the second locking tongue 571, respectively.

[0236] In one embodiment, the second locking tongue 571 is provided to abut against the auxiliary rod 860 when the seat is switched to the use state, so that it slides into the inclined surface 574 of the mounting base 580, which facilitates the rotation and use of the seat.

[0237] like Figures 35-37 In one embodiment, the children's high chair 1000 also includes a footrest 590, and a third cross brace 800 and a guide plate 900 are correspondingly configured for the footrest 590 to achieve height adjustment and folding rotation of the footrest 590. The guide plate and cross brace of the footrest 590 adopt the same structure as the guide plate and cross brace of the seat cushion. In the folded state, the seat cushion 560 and the footrest 590 abut against the outer peripheral surface of the guide plate, eventually tending to be parallel to the reference plane defined by the two first support rods and within the range of the first support rods.

[0238] If the seat 560 and footrest 590 are relatively close in height, they will overlap each other when folded, but will still remain within the range of the first support rod.

[0239] The technical features of the above embodiments 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.

[0240] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are quite specific and detailed. However, 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 foldable children's high chair frame, having a relatively unfolded state and a folded state, characterized in that, The children's high chair frame includes: The support leg assembly includes a first support leg and a second support leg that rotate around a first axis. In the unfolded state, the tops of the two support legs are close together and the bottoms are spread apart. In the folded state, the two support legs are close together. The bottom frame is hinged to the first support leg around the second axis on one side and locked to the second support leg on the other side. In the unfolded state, the bottom frame is fixed to the forked part of the two support legs. In the folded state, the bottom frame is released from the locking of the second support leg and moves towards the first support leg around the second axis.

2. The child high chair frame according to claim 1, characterized in that, The second support leg includes: The second support consists of two struts arranged side by side; The second cross brace is connected between the two second support rods. In the unfolded state, the bottom frame is locked and fixed to the second cross brace and / or the second support rod.

3. The children's high chair frame according to claim 2, characterized in that, Also includes: A linkage rod is hinged between the base frame and the second support leg; The linkage rod, the base frame, and the two support legs form a deformable linkage mechanism to adapt to the state switching of the child high chair support.

4. The children's high chair frame according to claim 3, characterized in that, In the unfolded state, the linkage mechanism is triangular; during folding, the linkage mechanism is concave quadrilateral.

5. The children's high chair frame according to claim 3, characterized in that, The first support leg includes: The first strut consists of two struts arranged side by side, with the end of each second strut hinged to the first strut on the corresponding side.

6. The child high chair frame according to claim 5, characterized in that, The bottom frame is U-shaped, with the two open sides of the U-shape hinged to the first support leg, and the closed side of the U-shape engaging with the second support leg.

7. The children's high chair frame according to claim 6, characterized in that, The bottom frame includes: The base rod consists of two rods arranged side by side, with one end of each base rod hinged to the first support leg. The reinforcing rods are used to fix the other ends of each base rod together.

8. The child high chair frame according to claim 7, characterized in that, The bottom rod has a receiving groove along its length. In the unfolded state and / or folded state, at least a portion of the linkage rod is placed into the receiving groove.

9. The child high chair frame according to claim 7, characterized in that, The linkage rod consists of two rods, with one end of each linkage rod hinged to the middle of the bottom rod on the corresponding side, and the other end hinged to the second support rod or the second cross brace on the corresponding side.

10. The child high chair frame according to claim 5, characterized in that, The bottom frame is provided with a positioning port, which engages with the second support leg in the unfolded state.

11. The child high chair frame according to claim 10, characterized in that, The bottom frame is provided with a movable locking member near the positioning port. In the unfolded state, the movable locking member cooperates with the second support leg to restrict the bottom frame.

12. The child high chair frame according to claim 11, characterized in that, A first cross brace is also provided between the bottom of the two first struts, and the first cross brace and the bottom frame form a quadrilateral.

13. A children's high chair frame, having a relatively unfolded state and a folded state, characterized in that, The children's high chair frame includes: The side frames are two oppositely arranged. Each side frame includes a first support rod and a second support rod that rotate around a first axis. In the unfolded state, the tops of the two support rods are close together and the bottoms are spread apart. In the folded state, the two support rods are close together. The bottom frame is hinged to the first support rod on one side around the second axis, and locked to the second support rod on the other side. In the unfolded state, the bottom frame is fixed to the forked part of the two support rods. In the folded state, the bottom frame is released from the lock of the second support rod and moves towards the first support rod around the second axis.

14. A children's high chair, characterized in that, include: The bracket is the children's high chair bracket as described in any one of claims 1 to 13; The support component is installed on the child high chair frame.

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