CN221356386U

CN221356386U - Dining chair for infants

Info

Publication number: CN221356386U
Application number: CN202322797984.8U
Authority: CN
Inventors: 刘上钺; 刘韦兵
Original assignee: Zhongshan Shuimuzhiyuan Design Center
Current assignee: Zhongshan Shuimuzhiyuan Design Center
Priority date: 2023-03-22
Filing date: 2023-10-18
Publication date: 2024-07-19
Anticipated expiration: 2033-10-18
Also published as: CN117426645A

Abstract

The utility model provides the infant dining chair which can be used as a dining chair and a rocking chair, meets European test requirements and safety standards, and has the advantages of small length, attractive appearance, small package and low cost, and the length of the supporting frame can also meet the length, the size and the packaging size of the supporting frame of a conventional dining chair. The infant dining chair comprises a dinner plate, a seat part, a back part, a supporting seat, a supporting frame, a swinging part, a connecting part, a locking and unlocking mechanism, a rocking chair position and a dining chair position; the connecting part enables the seat part to be separated from the supporting seat, and the locking and unlocking mechanism prevents the dinner plate from being connected with the seat part so that the dinner plate is separated from the seat part, and the swinging part can drive the seat part to swing when the dinner plate is positioned at the rocking chair position; the connecting part enables the seat part to be connected with the supporting seat, and simultaneously enables the locking and unlocking mechanism to allow the dinner plate to be connected with the seat part to form locking arrangement, and when the dinner plate is connected with the seat part to form locking arrangement and the locking and unlocking mechanism always enables the seat part to be connected with the supporting seat, the dinner plate is positioned at the dining chair position; the locking and unlocking mechanism allows the seat to be separated from the supporting seat when the dinner plate is separated from the seat.

Description

Dining chair for infants

Technical Field

The utility model relates to a dining chair for infants.

Background

The rocking chair with the rocking function is quite comfortable in the current market, the included angle of the seat is quite large, babies sit on the rocking chair and are quite comfortable to be liked by partial consumers, but the rocking chair is short in use age, low in cost performance and free of dining chair functions, and cannot be liked by more consumers, if the rocking chair is further provided with the rocking chair function on the basis of not increasing the length or the width of the dining chair support frame, the rocking chair can certainly be liked by more consumers, but the European Union test requirement and the safety standard of the rocking chair are different from the European Union test requirement and the safety standard of the dining chair, and the European Union test requirement and the safety standard of the rocking chair are different from each other: the rocking chair is placed on a supporting frame with the inclination of 15.5 degrees, one end of a cylinder with the inclination of 15kg is placed at a line pressing position of a seat part of the rocking chair, the cylinder is bound on the back by a safety braid on the back, the rocking chair at all angles of the seat part can not be turned over to meet the European Union test requirement and safety standard of the rocking chair, and the European Union test requirement and safety standard of the dining chair are as follows: lateral stability test a post was fixed to the seat and a dining chair could not be turned over with a vertical downward 150N force applied 140mm from the side rail of the seat; forward stability: a weight of 5KG is placed on the central line of the seat, the gravity center distance of the weight is 80mm away from the edge of the front end, and the weight cannot be turned over when 25N of horizontal outward force is applied to the highest position of the front end of the high dining chair; backward stability: a load of 15kg in the vertical direction was gradually applied within 5 seconds from the center of gravity of the inner side of the backrest to the outside by 140mm, and the foremost point was the point of the pillar.

The above fully illustrates that the EU test requirements and the safety standard of the high dining chair are far higher than those of the rocking chair, and the length or width rollover of the underframe, which is set when the dining chair is used, can pass the EU test requirements and the safety standard, so that the rocking chair can only be used in a rocking chair state, but if the rocking chair is used in a rocking chair state, the length or width of the underframe, which is set when the dining chair is used, can pass the EU test requirements and the safety standard, and the length of the swinging arm, which is set when the dining chair is used, from the starting point to the end point, can be multiplied by the length of a certain proportion, so that the size of the conventional dining chair can be broken, and the consumer can not accept the problem that the conventional dining chair can only be set according to the length of the conventional dining chair support, and the conventional dining chair can be suitable for the consumer can be set according to the length of the conventional dining chair support, if the following problems are required to be solved: firstly, can't make the dining chair use in the rocking chair state in order to prevent that the people from making the dining chair use, and secondly, from dining chair state to rocking chair state after the switching is unable to make the dining chair use, in order to prevent from directly switching to the rocking chair state from the dining chair state, can make the dining chair use again can make the rocking chair use after switching to the rocking chair state, just so can guarantee that a child Gao Can chair is small, the outward appearance is beautiful, accord with the size demand of consumer to the dining chair, so need have a small, the outward appearance is beautiful, the packing is little, with low costs, accord with the infant dining chair of consumer to conventional dining chair size demand on the market, satisfy more consumer's demands.

Disclosure of utility model

The utility model is provided according to the problems to be solved, and the utility model aims to provide the infant dining chair which can be used as a dining chair and a rocking chair, meets European test requirements and safety standards, has the length of a supporting frame and meets the length of the supporting frame of a conventional dining chair, and has the advantages of small volume, attractive appearance, small package and low cost.

The utility model is realized by the following technical scheme:

The infant dining chair comprises a dinner plate, a seat, a back, a supporting seat, a supporting frame, a swinging part, a locking and unlocking mechanism, a rocking chair position and a dining chair position, wherein the swinging part is connected with the seat, the swinging part is arranged on the supporting seat and supports the seat, the seat swings along with the swinging part, the locking and unlocking mechanism further comprises the connecting part, the rocking chair position and the dining chair position, the connecting part enables the seat to be separated from the supporting seat, and the locking and unlocking mechanism prevents the dinner plate from being connected with the seat so that the dinner plate is separated from the seat when the dinner plate is positioned at the rocking chair position, and the swinging part can drive the seat to swing; the connecting part enables the seat part to be connected with the supporting seat, and simultaneously enables the locking and unlocking mechanism to allow the dinner plate to be connected with the seat part to form locking arrangement, and when the dinner plate is connected with the seat part to form locking arrangement and the locking and unlocking mechanism always enables the seat part to be connected with the supporting seat, the dinner plate is positioned at the dining chair position; the locking and unlocking mechanism allows the seat to be separated from the supporting seat when the dinner plate is separated from the seat.

Further, the lock unlocking mechanism comprises a first locking part and a second locking part, wherein the first locking part is used for preventing the dinner plate from being connected with the seat when the connecting part is used for separating the seat from the supporting seat, so that the dinner plate is separated from the seat, the second locking part is used for allowing the dinner plate to be connected with the seat to form a locking arrangement when the connecting part is used for connecting the seat with the supporting seat, the second locking part is also used for allowing the seat to be always connected with the supporting seat when the dinner plate is connected with the seat to form the locking arrangement, and the second locking part is also used for allowing the seat to be separated from the supporting seat when the dinner plate is separated from the seat.

Further, the first locking part comprises a first locking component and a first connecting piece, the first locking component is connected with one end of the first connecting piece, the first locking part further comprises a pulling piece, and the pulling piece is connected with the other end of the first connecting piece.

Further, the dinner plate is provided with a plug rod, the seat is provided with a slot hole for the plug rod to insert, and the first locking component comprises a first plug pin for preventing the plug rod, and the first plug pin can extend into or withdraw from the slot hole.

Further, the first locking component is pivoted with the seat, the pulling piece is pivoted with the seat, and when the first groove of the connecting part is matched with the protruding part of the seat, the driving part of the connecting part drives the pulling piece to move downwards to drive the first bolt of the first locking component to move downwards so as to allow the dinner plate to be connected with the seat to form locking.

Further, a first return spring is also included, the first return spring being disposed between the first locking assembly and the seat.

Further, the second locking part comprises a second locking component and a second connecting piece, the second locking component is connected with one end of the second connecting piece, the second locking part further comprises a third locking component, and the third locking component is connected with the other end of the second connecting piece.

Further, the dinner plate is provided with an inserting rod, the seat is provided with a slot hole for inserting the inserting rod, the second locking component comprises a second bolt, the second bolt can extend into or withdraw from the slot hole, when the inserting rod is inserted into the slot hole, the inserting rod can drive the second bolt to withdraw from the slot hole, and the second connecting piece can drive the third locking component to be locked with the connecting part.

Further, the second locking assembly pivots with the seat.

Further, the third locking assembly comprises a rotating rod and a locking pin assembly, the rotating rod is pivoted with the seat, one end of the rotating rod is connected with the second connecting piece, the other end of the rotating rod is pivoted with the locking pin assembly, and the locking pin assembly is used for locking or unlocking with the connecting portion.

Further, a second return spring is included and is disposed between the latch assembly and the seat.

Further, the third locking assembly comprises a fourth reset part and a first locking piece for locking or unlocking the connecting part, the first locking piece is movably arranged relative to the seat and is connected with the other end of the second connecting piece, and the fourth reset part can drive the first locking piece to move towards the connecting part for resetting so as to lock the connecting part.

Further, the first locking element is slidably arranged on the seat part along the direction facing to or away from the connecting part, the fourth reset part comprises a fourth reset spring, and the fourth reset spring is arranged between the first locking element and the seat part and drives the first locking element to slide towards the connecting part by elasticity.

Further, the dinner plate is provided with an inserting rod, the seat is provided with a slotted hole for inserting the inserting rod, the second locking assembly comprises a first switch part and a first movable part, the first movable part is provided with a limiting part matched with the inserting rod, the first movable part is movably arranged relative to the seat and is connected with one end of the second connecting part, and the first switch part is connected to the seat and is in transmission fit with the first movable part.

Further, the limiting part comprises a third bolt which is used for extending into or withdrawing from the slotted hole, the first movable part is slidably arranged on the seat part along the first direction, the first switch part is slidably arranged on the seat part along the second direction, the first direction and the second direction form an included angle, and a first chute which is slidably matched with the first switch part is arranged on the first movable part.

Further, the limiting part comprises a hook used for hooking the inserted link, the first movable part is pivoted to the seat, the first switch part is slidably arranged on the seat, the first movable part is provided with a second chute which is slidably matched with the first switch part, one end of the second connecting part is connected to one end of the first movable part, and the hook is arranged at the other end of the first movable part.

Further, the locking and unlocking mechanism comprises a third locking part and a movable part, the movable part is respectively matched with the third locking part and the connecting part, and the third locking part is respectively matched with the dinner plate and the connecting part; the movable part is used for releasing the limit of the third locking part when the connecting part connects the seat part and the supporting seat, so that the third locking part allows the dinner plate to be connected with the seat part to form a locking arrangement; the third locking part is used for locking the connecting part when the dinner plate is connected with the seat part to form a locking arrangement, so that the seat part is always connected with the supporting seat; the third locking part is also used for unlocking the connecting part when the dinner plate is separated from the seat part, so that the seat part is allowed to be separated from the supporting seat; the movable part is also used for limiting the third locking part when the connecting part separates the seat part from the supporting seat, so that the third locking part prevents the dinner plate from being connected with the seat part, and the dinner plate is separated from the seat part.

Further, the third locking part comprises a third movable part and a fourth movable part, the third movable part and the fourth movable part are mutually matched in a transmission way and are respectively movably arranged relative to the seat part, the third movable part is used for preventing or allowing the dinner plate to be connected with the seat part, and the fourth movable part is used for locking or unlocking the connecting part; the movable part comprises a fifth movable part which is movably arranged relative to the seat part, and the connecting part can drive the fifth movable part to move so as to release the limit on the fourth movable part, thereby allowing the third movable part and the fourth movable part to move.

Further, the third locking part further comprises a fifth resetting part, the movable part further comprises a sixth resetting part, the third movable part and the fourth movable part are respectively arranged on the seat in a sliding mode along different directions, the fifth movable part is pivoted to the seat, the fifth resetting part is used for driving the third movable part and the fourth movable part to slide and reset when the dinner plate is separated from the seat, and the sixth resetting part is used for enabling the fifth movable part to rotate and reset when the connecting part enables the seat to be separated from the supporting seat.

Further, the dinner plate is provided with an inserting rod, the seat is provided with a slot hole for the inserting rod to insert, one end of the third movable piece is provided with a fourth bolt extending into or exiting from the slot hole, and the inserting rod can push the fourth bolt to exit from the slot hole, so that the fourth movable piece locks the connecting part.

Further, the locking and unlocking mechanism comprises a fourth locking part, a fifth locking part, a fourth connecting piece and a second switch part, wherein the fourth locking part and the fifth locking part are in linkage connection through the fourth connecting piece, the second switch part is connected to the seat part and is in transmission fit with the fourth locking part, the fourth locking part is used for being matched with a dinner plate, and the fifth locking part is used for being matched with the connecting part; when the connecting part enables the seat part to be connected with the supporting seat, the fifth locking part can lock the connecting part, and the fifth locking part drives the fourth locking part to act through the fourth connecting piece, so that the fourth locking part allows the dinner plate to be connected with the seat part to form a locking arrangement; when the dinner plate is connected with the seat part to form a locking arrangement, the dinner plate limits the fourth locking part, so that the fifth locking part keeps locking the connecting part; when the dinner plate is separated from the seat, the second switch part can drive the fourth locking part to act, and the fourth locking part drives the fifth locking part to unlock the connecting part through the fourth connecting piece, so that the seat is allowed to be separated from the supporting seat.

Further, the dinner plate is provided with an inserting rod, the seat is provided with a slot hole for inserting the inserting rod, the fourth locking part comprises a second movable part and a seventh resetting part for driving the second movable part to reset, the second movable part is provided with a fifth bolt extending into or exiting from the slot hole, the second movable part is movably arranged relative to the seat and is connected with one end of the fourth connecting part, the second switch part is in transmission fit with the second movable part, and the inserting rod and the fifth bolt can be mutually limited.

Further, the second movable piece is pivoted to the seat, the second switch portion is slidably disposed on the seat, and a third chute in sliding fit with the second switch portion is disposed on the second movable piece.

Further, the fifth locking part comprises a sixth moving part, a seventh moving part, a second locking part, an eighth resetting part and a ninth resetting part, the sixth moving part, the seventh moving part and the second locking part are respectively and movably arranged relative to the seat, the sixth moving part is connected with the other end of the fourth connecting part, the sixth moving part is used for locking or unlocking the connecting part, the second locking part is used for locking the sixth moving part at the position of the unlocking connecting part, the seventh moving part is used for driving the second locking part to act so as to lock or unlock the sixth moving part, the eighth resetting part is used for driving the sixth moving part to reset, and the ninth resetting part is used for driving the seventh moving part to reset.

Further, the sixth moving part and the seventh moving part are respectively and slidably arranged on the seat, the sixth moving part is positioned above the seventh moving part, a locking groove matched with the second locking part is formed in the sixth moving part, the second locking part is vertically and slidably arranged on the seat, the second locking part is also obliquely and slidably arranged on the seventh moving part, and the second locking part is upwardly inserted into or downwardly withdrawn from the locking groove along with the sliding of the seventh moving part.

Further, one end of the connecting part is pivoted with the supporting seat or the supporting frame, the other end of the connecting part is connected with or separated from the seat part, a first groove is formed in the other end of the connecting part, and a protruding part matched with the first groove is arranged on the seat part.

Further, a buckle for forming a clamping connection with the protruding part is arranged at the other end of the connecting part.

Further, a tenth reset part is further arranged between the connecting part and the supporting seat or the supporting frame, and the tenth reset part is used for driving the connecting part to movably reset so that the first groove of the connecting part is separated from the protruding part of the seat.

Further, the connecting portion comprises a first connecting column and a second connecting column, the first end of the first connecting column is connected with the seat, the first end of the second connecting column is connected with the supporting seat or the supporting frame, the seat is connected with the supporting seat when the second end of the first connecting column is connected with the second end of the second connecting column, and the seat is separated from the supporting seat when the second end of the first connecting column is separated from the second end of the second connecting column.

Further, the first end of the first connecting column is pivoted with the seat part, the first end of the second connecting column is pivoted with the supporting seat or the supporting frame, and the second end of the first connecting column is detachably buckled with the second end of the second connecting column.

Further, the rocking chair further comprises a blocking part, the seat part and the back part are pivotally connected, the blocking part is connected with the back part and/or the seat part, and the locking and unlocking mechanism is matched with the blocking part to limit the included angle between the seat part and the back part, wherein the adjustable maximum included angle M between the seat part and the back part when the rocking chair is positioned is larger than the adjustable maximum included angle N between the seat part and the back part when the rocking chair is positioned.

Further, the blocking portion is fixedly connected to the back portion and rotates along with the back portion, when the dinner plate is connected with the seat portion to form a locking arrangement, the locking and unlocking mechanism locks the connecting portion, and the locking and unlocking mechanism is close to the blocking portion so as to limit the continued rotation of the blocking portion.

Further, the seat includes base and handrail seat, and swing portion is connected with the base, and swing portion sets up on the supporting seat, and the support frame includes first support frame and second support frame, still includes slide mechanism, and slide mechanism can make the second support frame slide from top to bottom for first support frame, and first support frame supports on the horizontal plane, and first support frame is supporting the second support frame from the lower extreme, and the second support frame is fixed with the supporting seat and is set up, and locking release mechanism sets up in the handrail seat.

Further, a third connecting piece is arranged between the swinging part and the base, and the base is connected with the swinging part through the third connecting piece; the third connecting piece is fixed with the seat axis of rotation and sets up, and the third connecting piece is the U type setting, transversely is provided with on the base with third connecting piece complex cooperation portion.

Further, a folding mechanism is arranged on the first supporting frame, the first supporting frame comprises a first supporting piece and a second supporting piece, and the folding mechanism can enable the first supporting piece to be folded relative to the second supporting piece.

Further, the sliding mechanism comprises a sliding switch, a pull rope and a locking unlocking part, the sliding switch is arranged on the supporting seat or the second supporting frame, one end of the pull rope is connected with the sliding switch, the other end of the pull rope is connected with the locking unlocking part, the locking unlocking part is arranged between the first supporting frame and the second supporting frame, the locking unlocking part comprises a hole arranged on the first supporting frame, a pin arranged on the second supporting frame, a driving piece connected with the pin and a reset spring, and the driving piece is connected with the other end of the pull rope.

Further, the swinging part comprises a first rotating shaft and a second rotating shaft, the supporting seat comprises a mounting seat, one ends of the first rotating shaft and the second rotating shaft are pivoted with the mounting seat, and the other ends of the first rotating shaft and the second rotating shaft are pivoted with the third connecting piece.

Further, the swing portion includes seat axis of rotation, the drive shaft, the swing arm, the spacing groove, the supporting seat includes the mount pad, the mounting box, the swing arm, the spacing groove, the drive shaft is installed in the mounting box, be equipped with the recess that supplies connecting portion to inlay on the mounting box, seat axis of rotation and swing arm pivot, the one end and the seat of seat axis of rotation are connected, the other end of seat axis of rotation is provided with the rotating member, rotating member and spacing groove cooperation, the one end and the swing arm pivot of drive shaft, the other end and the mount pad pivot of drive shaft, second support frame integrated into one piece parcel is outside the mounting box.

Further, the electric motor is further arranged, the driving shaft is obliquely arranged, the other end of the driving shaft is connected with the electric motor, and the electric motor can enable the driving shaft to rotate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, it will be apparent that the following description is given with reference to the accompanying drawings, which are merely specific embodiments of the present utility model, and from which other drawings can be obtained by a person skilled in the art without inventive effort.

Fig. 1 is a schematic front view of the infant dining chair of embodiment 1 in a dining chair position for use as a dining chair.

Fig. 2 is a schematic side view of the infant dining chair of embodiment 1 in a dining chair position for use as a dining chair.

Fig. 3 is a schematic cross-sectional view of fig. 2A.

Fig. 4 is a schematic cross-sectional view of fig. 2B.

Fig. 5 is an exploded view of the armrest seat and seat portion of fig. 2H.

Fig. 6 is an enlarged schematic view of fig. 5E.

Fig. 7 is a schematic side view of the infant dining chair of embodiment 1 in a rocking chair position and only when the rocking chair is in use.

Fig. 8 is a schematic cross-sectional view of fig. 7C.

Fig. 9 is a schematic cross-sectional view of fig. 7D.

Fig. 10 is an exploded view of fig. 7I.

Fig. 11 is an enlarged schematic view at J of fig. 10.

Fig. 12 is a schematic side view of a dining chair for infants in embodiment 1 with a dining plate separated from a seat in a rocking chair position.

Fig. 13 is a schematic view showing a structure of a baby dining chair according to embodiment 1 after the side surface is tilted in a dining chair position.

Fig. 14 is an exploded view of fig. 13K.

Fig. 15 is an enlarged schematic view at Q of fig. 14.

Fig. 16 is a schematic view showing a visual structure of the infant dining chair of example 1 from the side to the rear when the dining chair is used.

Fig. 17 is an exploded view of fig. 16G.

Fig. 18 is a schematic view showing a structure of a child dinning chair of embodiment 1 in a dining chair position to be lowered to the lowest position when the dinning chair is used.

Fig. 19 is a schematic view showing a structure of the infant dining chair of embodiment 1 folded at the dining chair position when the dining chair is in use.

Fig. 20 is a schematic view of an included angle structure of the first support frame and the second support frame of the infant dining chair of embodiment 1 in the dining chair position when the dining chair is in use.

Fig. 21 is an exploded view at F of fig. 16.

Fig. 22 is an exploded schematic view of a connection mode of the swinging part at the diagonal support seat of the infant dining chair of embodiment 1.

Fig. 23 is an exploded view of an alternative connection of the swinging part at the diagonal support seat of the infant dining chair according to embodiment 1.

Fig. 24 is a schematic view showing the structure of the infant dining chair of example 1 in the dining chair position, which can be used as a rocking chair as well as a dining chair.

Fig. 25 is a schematic structural diagram of a connection position between the second support frame and the support seat of the infant dining chair according to embodiment 1.

Fig. 26 is a partial schematic view showing the locking and unlocking mechanism of the infant dining chair of embodiment 2, which is matched with the dinner plate and the connecting part when the infant dining chair is in the dining chair position.

Fig. 27 is a partial schematic view of a child dining chair of embodiment 2 after the locking and unlocking mechanism is reset in the swing position.

Fig. 28 is a partial schematic view showing a lock/unlock mechanism of the infant dining chair of embodiment 3 in cooperation with a dinner plate and a connecting portion when the chair is in a dining position.

Fig. 29 is a partial schematic view of a child dining chair of embodiment 3 after the locking and unlocking mechanism is reset in the swing position.

Fig. 30 is a partial schematic view showing a lock/unlock mechanism of the infant dining chair of embodiment 4 in cooperation with a dinner plate and a connecting portion when the chair is in a dining chair position.

Fig. 31 is a partial schematic view of the fifth locking portion and the connecting portion of the infant dining chair of embodiment 4 in the dining chair position.

Fig. 32 is a partial schematic view of a child dinning chair of example 4 after the fifth locking portion is reset in the rocking chair position.

Fig. 33 is a partial schematic view of a locking and unlocking mechanism of the infant dining chair of embodiment 5, which is matched with the dinner plate and the connecting part when the infant dining chair is in the dining chair position.

Fig. 34 is a partial schematic view of the infant dining chair of embodiment 5 after the locking and unlocking mechanism is reset in the swing position.

Fig. 35 is a partially cut-away perspective view of the infant dining chair of example 6 showing the position of the connecting portion in the dining chair position.

Fig. 36 is an enlarged schematic view of the L portion shown in fig. 35.

Fig. 37 is a schematic structural view of a connecting portion of embodiment 7.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the terms "first," "second," "one end," "the other end," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly specified or defined otherwise; the term "plurality" refers to two or more than two; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the/the" object or "an" object are likewise intended to mean one of a possible plurality of such objects.

Unless defined otherwise, 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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1

An embodiment of the present utility model will now be described with reference to fig. 1-25.

In this embodiment, the infant dining chair comprises a dinner plate 1, a seat 2, a back 3, a supporting seat 4, a supporting frame 5, a swinging part 6, a rocking part 6, a locking and unlocking mechanism 7, a connecting part 8, a rocking chair position 9 and a dining chair position 10, wherein the swinging part 6 is connected with the seat 2, the swinging part 6 is arranged on the supporting seat 4, the swinging part 6 supports the seat 2, the seat 2 swings along with the swinging of the swinging part 6, the connecting part 8 enables the seat 2 to be separated from the supporting seat 4, and the locking and unlocking mechanism 7 prevents the dinner plate 1 from being connected with the seat 2 so that the dinner plate 1 is separated from the seat 2, and the swinging part 6 can drive the seat 2 to swing at the rocking chair position 9; the connecting part 8 enables the seat part 2 to be connected with the supporting seat 4 and enables the locking and unlocking mechanism 7 to allow the dinner plate 1 to be connected with the seat part 2 to form a locking arrangement, and the dinner plate 1 is connected with the seat part 2 to form the locking arrangement, and the locking and unlocking mechanism 7 always enables the seat part 2 to be connected with the supporting seat 4 and is positioned at the dining chair position 10 at the moment; the lock-unlock mechanism 7 allows the seat 2 to be separated from the support 4 when the dinner plate 1 is separated from the seat 2. The above-mentioned matters are that when the rocking chair is used, the seat 2 and the supporting seat 4 are separated, the locking and unlocking mechanism 7 prevents the dinner plate 1 from being connected with the seat 2, so that the dining chair cannot be used, when the dining chair is used, the connecting part 8 enables the seat 2 and the supporting seat 4 to be connected, the dinner plate 1 and the seat 2 are allowed to be connected to form a locking arrangement, and after the dinner plate 1 and the seat 2 are connected to form a locking arrangement, the dinner plate 1 and the seat 2 are locked to form the locking arrangement, the locking and unlocking mechanism 7 enables the seat 2 and the supporting seat 4 to be connected and cannot be separated artificially (to be noted, the fact that the connection part 8 cannot be controlled directly by people to separate the seat 2 from the supporting seat 4 without damaging the structures of all parts of the infant dining chair), the rocking chair cannot be converted into the rocking chair 9, and only when the dinner plate 1 and the seat 2 are separated and the locking and unlocking mechanism 7 can be allowed to be unlocked artificially or unlocked or linked so that the seat 2 and the supporting seat 4 can be separated and converted into the rocking chair 9.

Since the European Union test requirements and safety standards of the dining chair are far higher than those of the rocking chair, the rocking chair position 9 must pass the European Union test requirements and safety standards as long as the dining chair position 10 can pass the European Union test requirements and safety standards, so as long as the length or width of the supporting frame 5 is set according to the European Union test requirements and safety standards of the dining chair, but if the dining plate 1 can be connected with the seat 2 when the rocking chair position 9 is connected with the seat 2, the dining chair must be tested according to the European Union test requirements and safety standards of the dining chair, the length or width of the supporting frame 5 which can pass the European Union test requirements and safety standards on the dining chair position 10 cannot pass the European Union test requirements and safety standards of the dining chair when the dining plate 1 and the seat 2 are connected on the dining chair position 9, because the dinner plate 1 can be connected with the seat 2 when the seat 9 is used, at the moment, the dinner plate 1 and the seat 2 can move away from each other when the dinner plate 1 and the seat 2 are opposite to the dining chair 10, and the length obtained by multiplying the length of the distance movement by a certain proportion is taken as the length or the width of the support frame 5 to pass European Union test requirements and safety standards, if the seat 9 is used for fixing the dinner plate 1 and the seat 2, the length of the support frame 5 required can far exceed the length of the support frame 5 when the dining chair 10 is used, so that the dinner plate 1 and the seat 2 have large volume, serious occupied space, increased packaging cost and unattractive appearance, and the utility model overcomes the defects of large volume, large packaging cost and unattractive appearance of a baby dining chair, thereby achieving small volume, low cost and attractive appearance.

Further with reference to fig. 3 to 7: the lock unlocking mechanism 7 comprises a first locking part 11 and a second locking part 12, the first locking part 11 is used for preventing the dinner plate 1 from being connected with the seat 2 when the connecting part 8 is used for separating the seat 2 from the supporting seat 4 so as to separate the dinner plate 1 from the seat 2, the second locking part 12 is used for allowing the dinner plate 1 to be connected with the seat 2 to form a locking arrangement when the connecting part 8 is used for connecting the seat 2 with the supporting seat 4, the second locking part 12 is also used for allowing the seat 2 to be separated from the supporting seat 4 when the dinner plate 1 is separated from the seat 2, the seat 2 also comprises a handrail seat 31, and the lock unlocking mechanism 7 is arranged in the handrail seat 31 so as to enable the appearance to be attractive and have no potential safety hazard.

Further with reference to fig. 2 to 11: the first locking part 11 comprises a first locking component 13 and a first connecting piece 14, the first locking component 13 is connected with one end of the first connecting piece 14, the first locking part 11 further comprises a pulling piece 15, the pulling piece 15 is connected with the other end of the first connecting piece 14, the pulling piece 15, the first connecting piece 14 and the first locking component 13 are linked, the second locking part 12 comprises a second locking component 16 and a second connecting piece 17, the second locking component 16 is connected with one end of the second connecting piece 17, the second locking part 12 further comprises a third locking component 18, the third locking component 18 is connected with the other end of the second connecting piece 17, and the second connecting piece 17, the second locking component 16 and the third locking component 18 are linked.

Further with reference to fig. 7 to 12: the dinner plate 1 is provided with the inserted link 19, the seat 2 is provided with the slotted hole 20 for the inserted link 19 to be inserted, the dinner plate 1 can be inserted into the slotted hole 20 to form locking, when the dining chair is used, the inserted link 19 of the dinner plate 1 can be withdrawn from the slotted hole 20 to be used as a rocking chair, the first locking component 13 comprises a first plug pin 21, the seat 2 is provided with a first plug hole 22 for the first plug pin 21 to extend into the slotted hole 20, when the seat 2 is separated from the supporting seat 4, the first plug pin 21 penetrates through the first plug hole 22 to extend into the slotted hole 20 to prevent that most of the inserted link 19 of the dinner plate 1 cannot be inserted into the slotted hole 20, so that the dinner plate 1 and the seat 2 cannot be locked, and therefore cannot be used as the dining chair.

Further with reference to fig. 2 to 6: the second locking component 16 comprises a second plug pin 23, a second jack 24 for the second plug pin 23 to extend into the slotted hole 20 is arranged on the seat 2, when the inserted rod 19 of the dinner plate 1 is inserted into the slotted hole 20, the second plug pin 23 is driven to move downwards through the second jack 24, when the second plug pin 23 moves down, the second connecting piece 17 is driven to lock the third locking component 18 with the connecting part 8, the seat 2 and the supporting seat 4 are connected, and the seat 2 and the supporting seat 4 cannot be unlocked and separated, so that potential safety hazards caused by manual operation unlocking are prevented.

Referring to fig. 2, 4, 7, 9 as one of the preferred embodiments: one end of the connecting part 8 is pivoted with the supporting seat 4 or the supporting frame 5, the other end of the connecting part 8 is connected with the seat 2 when the dining chair is used, the first groove 60 on the other end of the connecting part 8 is matched with the convex part 64 on the seat, so that the supporting seat 4, the connecting part 8 and the seat 2 are connected, the seat 2 cannot move away from the supporting seat 4 or the supporting frame 5, meanwhile, the buckle 59 on the other end of the connecting part 8 and the convex part 64 form slight clamping, the connecting part cannot spring open under the action of artificial force, the other end of the connecting part 8 is also provided with a lock hole 65, the third locking component 18 is locked with the lock hole 65 when the dining plate 1 is connected with the seat 2 to form locking, and of course, the other end of the connecting part 8 can be provided with a lock pin to be locked with the third locking component 18, and the driving part 61 is simultaneously driven to move down to drive the first 21 of the first locking component 13 when the first groove 60 on the other end of the connecting part 8 is matched with the convex part 64, so that the dining plate 1 and the seat 2 are allowed to be connected with the seat 2 to form locking, and the other end of the dining plate 1 cannot spring open under the action of artificial force, and the swinging arm 2 can be driven by the action of the swinging part 49 to separate from the seat 2 downwards when the dining plate is used.

In another preferred embodiment, the connection manner of the two ends of the connection portion 8 may be exchanged, specifically, for example: one end of the connecting part 8 is connected or separated with the supporting seat 4 or the supporting frame 5, the other end of the connecting part 8 is pivoted with the seat 2, a first groove 60 is formed in one end of the connecting part 8, a protruding part 64 buckled with the first groove 60 is arranged on the supporting seat 4 or the supporting frame 5, the supporting seat 4, the connecting part 8 and the seat 2 can be connected in a matched mode, so that the seat 2 cannot move in a distance relative to the supporting seat 4 or the supporting frame 5, a buckle 59 can be arranged on one end of the connecting part 8 and is used for forming slight clamping with the protruding part 64, the connecting part cannot be sprung out under the action of no artificial force, a lock hole 65 is formed in the other end of the connecting part 8, and when the dinner plate 1 is connected with the seat 2 to form a lock, the third locking assembly 18 is locked with the lock hole 65, rotation of the connecting part 8 is limited, and one end of the connecting part 8 is limited from being separated from the supporting seat 4 or the supporting frame 5.

Further with reference to fig. 6: the first locking assembly 13 is pivotally arranged with the seat 2, the second locking assembly 16 is pivotally arranged with the seat 2, and the pulling member 15 is pivotally arranged with the seat 2.

Further with reference to fig. 15: the third locking assembly 18 comprises a rotating lever 26, a locking pin assembly 27, the rotating lever 26 being pivoted to the seat 2, one end of the rotating lever 26 being connected to the second connecting piece 17, the other end of the rotating lever 26 being pivoted to the locking pin assembly 27. When the dining chair is used, the inserted link 19 of the dining plate 1 enables the second bolt 23 to move downwards to drive the third locking component 18, the third locking component 18 drives the rotating link 26, and the rotating link 26 drives the locking pin component 27, so that the locking pin component 27 is locked with the connecting part 8.

Further with reference to fig. 15: the first return spring 28 is arranged between the first locking assembly 13 and the seat 2, the second return spring 29 is arranged between the lock pin assembly 27 and the seat 2, when the seat 2 is separated from the supporting seat 4, the first return spring 28 enables the first bolt 21 to extend into the slotted hole 20, and the second return spring 29 enables the second bolt 23 to extend into the second jack 24 after the dinner plate 1 is separated from the seat 2 so as to drive the third locking assembly 18 to unlock the connecting part 8.

Preferably, the latch assembly 27 is slidably disposed on the seat 2, the latch assembly 27 is provided with a kidney-shaped hole, the other end of the rotating rod 26 is provided with a pin, and the pin is inserted into the kidney-shaped hole and can rotate and displace relative to the kidney-shaped hole, when the rotating rod 26 rotates, the rotating rod 26 drives the latch assembly 27 to slide through the cooperation of the kidney-shaped hole and the pin to lock the connecting portion 8, so that the structure is simpler, and the production cost is reduced. Of course, the kidney-shaped aperture and the pin may be provided interchangeably, such as with the kidney-shaped aperture being provided on the pivot rod 26 and the pin being provided on the locking pin assembly 27.

It will be appreciated that the first return spring 28 may also be replaced by a torsion spring, a tension spring, a spring plate, a return link structure, a gravity return weight structure, or other return mechanism capable of resetting the first locking assembly 13. The second return spring 29 can also act on the rotating rod 26, and similarly, the second return spring 29 can also be replaced by a tension spring, a spring piece, a return link structure, a gravity return counterweight structure and other return mechanisms capable of realizing the return of the driving lock pin assembly 27.

Further with reference to fig. 2: the seat 2 comprises a base 30 and a handrail seat 31, a swinging part 6 is connected with the base 30, the swinging part 6 is arranged on a supporting seat 4, a supporting frame 5 comprises a first supporting frame 25 and a second supporting frame 57, and further comprises a sliding mechanism 32, the sliding mechanism 32 can enable the second supporting frame 57 to slide up and down relative to the first supporting frame 25, the first supporting frame 25 is supported on a horizontal plane, the first supporting frame 25 supports the second supporting frame 57 from the lower end, the second supporting frame 57 is fixedly arranged with the supporting seat 4, the swinging part 6 and the seat 2 are lifted relative to the first supporting frame 25 through the second supporting frame 57, the centrifugal force of the seat 2 relative to the swinging part 6 is the same no matter the seat 2 is at the highest position or the lowest position, so that the swinging of the swinging part 6 is not influenced, the stability of the seat 2 is not influenced, the defect that the centrifugal force is the largest when the swinging part 6 and the supporting frame 5 are connected with the seat 2 to slide up and down relative to the supporting frame 5, the swinging is not smooth, the seat 2 is the most unstable is overcome, and the locking mechanism 7 is arranged in the seat 31, so that the appearance is beautiful, and the handrail has no safety hidden trouble.

Further with reference to fig. 25: the vertical line 62 between the highest point of the second support frame 57 fixed to the support seat 4 and the horizontal plane is shorter than the vertical line 63 between the lowest point of the base 30 and the horizontal plane, and the seat 2 swings relative to the support seat 4 in the rocking chair position 9, so that the highest point of the fixed point of the second support frame 57 to the support seat 4 is lower than the lowest point of the bottom of the base 30, the seat 2 can be prevented from interfering with or forming a clamping hand with the second support frame 57 in swinging, thereby having no potential safety hazard, simultaneously having no potential safety hazard in the visual sense of a consumer, ensuring that the consumer can purchase the baby with confidence, and simultaneously ensuring that the visual field of the baby is wider, thereby ensuring that the baby sits more happily and prefers sitting.

Further with reference to fig. 15, 17: the third connecting piece 33 is arranged between the swinging part 6 and the base 30, the base 30 is connected with the swinging part 6 through the third connecting piece 33, the disassembly and assembly of the seat part 2 and the swinging part 6 are more convenient through the third connecting piece 33, meanwhile, the connection between the seat part 2 and the swinging part 6 is more stable, and meanwhile, the third connecting piece 33 can be connected with other functions of a seat, for example, the third connecting piece 33 can be connected with a bed body to be used as a cradle.

Further with reference to fig. 18, 19: the first support frame 25 is provided with the folding mechanism 34, the first support frame 25 comprises a first support member 35 and a second support member 36, the folding mechanism 34 can enable the first support member 35 to be folded relative to the second support member 36, the structure does not occupy space when not used, and the package can be smaller.

Further with reference to fig. 20: the first support frame 25 forms an acute angle with the second support frame 57 for the inclination setting, is more favorable to the focus setting of the seat 2 to be more favorable to passing the test, and is more beautiful.

Further with reference to fig. 21: the slide mechanism 32 includes a slide switch 37, a pull rope 38, and a lock unlocking portion 39, the slide switch 37 is connected to the pull rope 38, the pull rope 38 is connected to the lock unlocking portion 39, the slide switch 37 is disposed on the support base 4 or the second support frame 57, one end of the pull rope 38 is connected to the slide switch 37, the other end of the pull rope 38 is connected to the lock unlocking portion 39, the lock unlocking portion 39 is disposed between the first support frame 25 and the second support frame 57, and when the slide switch 37 is pulled upward, the lock unlocking portion 39 is driven to unlock, so that the first support frame 25 and the second support frame 57 are unlocked, and when the slide switch 37 is released, the lock unlocking portion 39 locks the first support frame 25 and the second support frame 57.

Further with reference to fig. 21: the lock unlocking portion 39 includes a hole 40 provided in the first support frame 25, a pin 41 provided in the second support frame 57, a driving piece 42 connected to the pin 41, and a third return spring 43, the driving piece 42 being connected to the other end of the pulling rope 38, the driving piece 42 driving the pin 41 to retreat when the driving piece 42 moves upward when the slide switch 37 is lifted upward, the pin 41 being withdrawn from the hole 40 to unlock the first support frame 25 from the second support frame 57, and the pin 41 being inserted into the hole 40 to lock the first support frame 25 from the second support frame 57 under the action of the third return spring 43 when the slide switch 37 is released.

Referring to fig. 22 as one of the preferred embodiments: the swinging portion 6 includes a first rotating shaft 44 and a second rotating shaft 45, the supporting base 4 includes a mounting base 46, one ends of the first rotating shaft 44 and the second rotating shaft 45 pivot with the mounting base 46, and the other ends of the first rotating shaft 44 and the second rotating shaft 45 pivot with the third connecting member 33.

Referring to fig. 21 and 23 as one of the preferred embodiments: the swinging part 6 comprises a seat rotating shaft 47, a driving shaft 48, a swinging arm 49 and a limiting groove 50, the supporting seat 4 comprises a mounting seat 46 and a mounting box 51, the mounting seat 46, the swinging arm 49, the limiting groove 50 and the driving shaft 48 are arranged in the mounting box 51, a second groove 56 for the connecting part 8 to be embedded in is formed in the mounting box 51, the seat rotating shaft 47 and the swinging arm 49 are pivoted, one end of the seat rotating shaft 47 is connected with the seat 2, the other end of the seat rotating shaft 47 is provided with a rotating piece 52, the rotating piece 52 is matched with the limiting groove 50, one end of the driving shaft 48 is pivoted with the swinging arm 49, the other end of the driving shaft 48 is pivoted with the mounting seat 46, the second supporting frame 57 is integrally formed and wrapped outside the mounting box 51, so that the stability of the supporting seat 4 is better, and part of the area of the mounting box 51 can be shielded, the mounting box 51 is smaller in vision, so that the rocking chair is more attractive, the structure can realize various swinging modes and large by changing the different positions of the limiting groove 50, and the rocking chair is provided with a second groove 56 for the connecting part 8 to be embedded in, and the second groove 56 is basically beautiful in the appearance when the connecting part 8 is embedded in the mounting box 51.

Further with reference to fig. 23: the seat part 2 can automatically swing without manual swing through the arrangement of the electric part 53, so that manual work is saved, and the swing is smoother due to the inclined arrangement of the driving shaft 48.

Further with reference to fig. 23: the supporting seat 4 further comprises a fixing piece 54, the mounting seat 46 is fixedly arranged on the fixing piece 54, the fixing piece 54 and the second supporting frame 57 are fixedly arranged, the swinging part 6 is arranged on the supporting seat 4 through the structure, the supporting seat 4 is stably arranged on the second supporting frame 57, the seat 2 is more stable, and the infant dining chair is more stable.

Further with reference to fig. 17, 21 and 23: the third connecting piece 33 is a U-shaped iron pipe 55, the U-shaped base and the seat rotating shaft 47 are not welded vertically and are welded obliquely or transversely, so that the connecting height of the third connecting piece 33 and the seat rotating shaft 47 is short, the height of the supporting seat 4 is low when the seat 2 is separated from the third connecting piece 33, the packaging volume is reduced, and the U-shaped opening 56 of the third connecting piece 33 is matched with the matched part matched with the third connecting piece 33 on the base 30 transversely, so that the matching is more stable.

The utility model aims to provide a baby dining chair which can be used as a dining chair and a rocking chair, meets European test requirements and safety standards, has a length which can be matched with the length of a supporting frame of a conventional dining chair, has a small volume, attractive appearance, small package and low cost, is invented by engineers through long-term careful study, is not easy to think of a person in the field, and does not belong to public general knowledge.

Example 2

Referring to fig. 26 and 27, the present embodiment also discloses a dining chair for infants, which is different from embodiment 1 in that: the second locking assembly 16 and the third locking assembly 18 are different.

The infant dining chair of the present embodiment also comprises a dinner plate 1, a seat 2, a back 3, a supporting seat 4, a supporting frame 5, a swinging part 6, a locking and unlocking mechanism 7 and a connecting part 8, and comprises a rocking chair position 9 and a dining chair position 10, wherein the locking and unlocking mechanism 7 comprises a first locking part 11 and a second locking part 12, the second locking part 12 comprises a second locking assembly 16, a second connecting piece 17 and a third locking assembly 18, the second locking assembly 16 is connected with one end of the second connecting piece 17, the third locking assembly 18 is connected with the other end of the second connecting piece 17, and the second connecting piece 17, the second locking assembly 16 and the third locking assembly 18 are linked. Wherein the second locking assembly 16 is adapted to cooperate with the dish 1 and is limited by the dish 1 and the third locking assembly 18 is adapted to lock or unlock the connection 8. The specific structure of the other components except the second locking assembly 16 and the third locking assembly 18 can be referred to embodiment 1, and this embodiment will not be repeated.

Referring to fig. 26 and 27, unlike embodiment 1, in the present embodiment, the third locking assembly 18 includes a fourth reset portion and a first locking piece 68 for locking or unlocking the connection portion 8, the first locking piece 68 being movably disposed with respect to the seat portion 2 and connected with the other end of the second connection piece 17, the fourth reset portion being capable of driving the first locking piece 68 to move reset toward the connection portion 8 to lock the connection portion 8.

Thus, when the dining chair is in use, the second locking assembly 16 is limited by the dinner plate 1, the second locking assembly 16 cannot apply force to the first locking piece 68 through the second connecting piece 17, and at this time, the first locking piece 68 is mainly influenced by the reset force of the fourth reset part, so that the locking connecting part 8 is kept, the seat 2 and the supporting seat 4 cannot be unlocked and separated, and potential safety hazards caused by unlocking by manual operation are prevented.

Preferably, the first locking element 68 is slidingly arranged on the seat 2 in a direction towards or away from the connecting portion 8, the fourth return portion comprises a fourth return spring 67, the fourth return spring 67 is arranged between the first locking element 68 and the seat 2 and drives the first locking element 68 to slide towards the connecting portion 8 by elastic force, and in particular the first locking element 68 is inserted into the locking hole 65 of the connecting portion 8.

In other embodiments, the fourth restoring portion may also be a torsion spring, an elastic sheet, a restoring link structure, a gravity restoring counterweight structure, or other structures capable of playing a restoring role, and the specific style or structure of the fourth restoring portion is not limited herein.

In other embodiments, the first locking element 68 may be pivoted to the seat 2 or moved along a predetermined track relative to the seat 2, so long as the first locking element 68 can lock or unlock the connecting portion 8, which is not limited herein.

Referring to fig. 26 and 27, unlike embodiment 1, in this embodiment, the second locking assembly 16 comprises a first switch 69 and a first movable member 70, and the first movable member 70 is provided with a limit portion for cooperating with the insert 19 of the dinner plate 1, specifically, when the insert 19 of the dinner plate 1 is inserted into the slot 20 of the seat 2, the limit portion is limited by the insert 19; the first movable member 70 is movably disposed relative to the seat 2 and connected to one end of the second connecting member 17, and the first switch portion 69 is connected to the seat 2 and is in transmission fit with the first movable member 70, so that the first movable member 70 can be driven to move relative to the seat 2 by operating the first switch portion 69, and the first locking member 68 is driven to synchronously move by the first movable member 70 through the second connecting member 17.

Thus, when the dinner plate 1 is separated from the seat 2, the first switch part 69 can drive the first movable part 70 to act, and drive the first locking part 68 to unlock the connecting part 8 through the second connecting part 17; when the dinner plate 1 is connected with the seat 2 to form a locking arrangement, that is, when the insert rod 19 of the dinner plate 1 is inserted into the slot 20 of the seat 2, the insert rod 19 limits the limiting part, so that the first locking piece 68 keeps locking the connecting part 8 under the action of the fourth resetting part.

Preferably, in the present embodiment, the limiting portion includes a third pin 71 for extending into or exiting from the slot 20, the first movable member 70 is slidably disposed on the seat 2 along a first direction, the first switch portion 69 is slidably disposed on the seat 2 along a second direction, the first direction and the second direction form an included angle, and the first movable member 70 is provided with a first chute 72 slidably engaged with the first switch portion 69, so that the sliding direction of the first switch portion 69 and the first movable member 70 is switched by using the first chute 72.

Specifically, the first direction may be a vertical or near vertical direction, and the second direction may be a horizontal or near horizontal direction. The sliding track of the first movable member 70 and the first switch portion 69 on the seat portion 2 may be limited by a chute, a rail, or the like, and the present utility model is not limited thereto.

Thus, when the dinner plate 1 is connected with the seat 2 to form a locking arrangement, the inserted bar 19 can block the third bolt 71 to limit the third bolt 71 to be kept at the position of exiting the slotted hole 20; when the dinner plate 1 is separated from the seat 2, the first switch portion 69 is slid in the second direction to drive the first movable member 70 to slide in the first direction, and the first movable member 70 can drive the third latch 71 to extend into the slot 20.

Referring to fig. 26 and 27, and referring to the direction shown in fig. 26, in order to facilitate understanding of the scheme of the embodiment, the process of switching the dining chair from the dining chair position to the rocking chair position is as follows: firstly, the dinner plate 1 is detached from the seat 2, the restriction of the inserted link 19 on the third bolt 71 is released, then the first switch part 69 is slid, the first switch part 69 drives the first movable part 70 to slide upwards to drive the third bolt 71 to extend into the slotted hole 20, the first movable part 70 slides upwards and simultaneously exerts force on the first locking part 68 through the second connecting part 17, so that the first locking part 68 slides leftwards to compress the fourth return spring 67 and is separated from the locking hole 65 of the connecting part 8, the connecting part 8 is unlocked, then the other end of the connecting part 8 can be pulled upwards to be separated from the seat 2, the swinging arm 49 of the swinging part 6 can drive the seat 2 to swing, when the connecting part 8 is separated from the seat 2, the connecting part 8 releases the pressing of the pulling part 15, at this time, the first locking component 13 is mainly affected by the restoring force of the first restoring spring 28, the first restoring spring 28 drives the first locking component 13 to rotate clockwise and enables the first bolt 21 to extend upwards into the slotted hole 20, meanwhile, the first locking component 13 drives the pulling piece 15 to rotate anticlockwise for restoring through the first connecting piece 14, at this time, the first bolt 21 prevents that a large part of the inserted rod 19 of the dinner plate 1 cannot be inserted into the slotted hole 20, so that the dinner plate 1 cannot be locked with the seat 2, the first switch part 69 can be released, the first movable piece 70, the third bolt 71 and the first locking piece 68 can be restored, at this time, a rocking chair position is formed, and a consumer can be used for soothing the rocking chair, so that the pressure of the mother who needs to hold the child in real time can be saved, and other things can be saved.

Similarly, the process of switching the infant dining chair from the rocking chair position to the dining chair position is as follows: the other end of the connecting part 8 is connected with the seat 2, the connecting part 8 presses the pulling part 15 to rotate clockwise, the pulling part 15 drives the first locking assembly 13 to rotate anticlockwise through the first connecting part 14 to compress the first reset spring 28, the first plug pin 21 is led to exit the slotted hole 20 downwards, the restriction of the first plug pin 21 on the plug rod 19 is relieved, the connecting part 8 presses the pulling part 15 and simultaneously presses the first locking part 68 to move leftwards to compress the fourth reset spring 67, when the first groove 60 of the connecting part 8 is inserted into the corresponding depth of the protruding part 64 of the seat 2, the connecting part 8 does not press the first locking part 68 to move leftwards, the first locking part 68 moves rightwards under the action of the fourth reset spring 67 to form locking when the first locking part 68 is inserted into the slotted hole 65 of the connecting part 8, then the plug rod 19 of the dinner plate 1 is inserted into the slotted hole 20 of the seat 2 to form locking with the dinner plate 1, the third plug pin 71 is limited at the position of the exit slot hole 20, the first switching part 69 of the dinner seat is not pushed to move leftwards at the moment, and thus the first movable part 70 cannot be driven upwards to slide upwards to form the position of the dinner seat 68, and the safety of a consumer can not be ensured to pass through the European style, and the safety of the consumer can not be ensured.

Example 3

Referring to fig. 28 and 29, this embodiment also discloses a dining chair for infants, which is different from embodiment 2 in that: the difference of the limiting parts, the difference of the moving modes of the first moving member 70, and the difference of the corresponding switching modes of the first switch part 69 and the first moving member 70.

Unlike embodiment 2, in this embodiment, the limiting portion includes a hook 73 for hooking on the inserting rod 19, the first movable member 70 is pivoted to the seat 2, the first switch portion 69 is slidably disposed on the seat 2, and the first movable member 70 is provided with a second chute 74 slidably engaged with the first switch portion 69, where one end of the second connecting member 17 is connected to one end of the first movable member 70, and the hook 73 is disposed at the other end of the first movable member 70, at this time, the first movable member 70 is substantially in a see-saw structure, and when one end of the first movable member 70 moves upward, the other end moves downward.

Specifically, as in embodiment 2, the first switch portion 69 may be slidably disposed on the seat 2 along a horizontal or nearly horizontal direction, and the first switch portion 69 is preferably connected to one end of the first movable member 70 simultaneously with the second connecting member 17, so that no additional avoiding structure is required to avoid interference; of course, the first switch 69 may be connected to the other end of the first movable member 70 simultaneously with the hook 73, so as to drive the first movable member 70 to rotate.

Thus, in the above-described solution, when the dish 1 is connected to the seat 2 to form a locking arrangement, the rod 19 is inserted into the slot 20 and limits the hooks 73 to remain in position extending into the slot 20, so as to form a lock for the hooks 73; when the dinner plate 1 is separated from the seat 2, the first switch portion 69 is slid to drive the first movable member 70 to rotate, and the first movable member 70 can drive the hook 73 to withdraw from the slot 20.

Specific structures of the other components except the above-described stopper portion, the first movable member 70, and the first switch portion 69 are referred to embodiment 2 and embodiment 1, and the description of this embodiment will not be repeated.

Referring to fig. 28 and 29, and referring to the direction shown in fig. 28, in order to facilitate understanding of the scheme of the embodiment, the process of switching the dining chair from the dining chair position to the rocking chair position is as follows: firstly, the dinner plate 1 is detached from the seat 2, the locking of the inserted link 19 to the hook 73 is released, then the first switch part 69 is slid, the first switch part 69 drives the first movable part 70 to rotate anticlockwise, the other end of the first movable part 70 descends to drive the hook 73 to withdraw from the slotted hole 20 downwards, one end of the first movable part 70 ascends and applies force to the first locking part 68 through the second connecting part 17, so that the first locking part 68 slides leftwards to compress the fourth return spring 67 and is separated from the locking hole 65 of the connecting part 8, the connecting part 8 is unlocked, then the other end of the connecting part 8 can be pulled upwards to be separated from the seat 2, so that the swing arm 49 of the swing part 6 can drive the seat 2 to swing, when the connecting part 8 is separated from the seat 2, the abutting of the pulling part 15 is released by the connecting part 8, at this time, the first locking component 13 is mainly affected by the restoring force of the first restoring spring 28, the first restoring spring 28 drives the first locking component 13 to rotate clockwise and enables the first bolt 21 to extend upwards into the slotted hole 20, meanwhile, the first locking component 13 drives the pulling piece 15 to rotate anticlockwise for restoring through the first connecting piece 14, at this time, the first bolt 21 prevents that a large part of the inserted rod 19 of the dinner plate 1 cannot be inserted into the slotted hole 20 so that the dinner plate 1 cannot be locked with the seat 2, the first switch part 69 can be released to enable the first movable piece 70, the hook 73 and the first locking piece 68 to restore, at this time, a rocking chair position is formed, and a consumer can be used as the rocking chair to relieve the pressure of a child who needs to hold the child in real time, and vacate time to do other things.

Similarly, the process of switching the infant dining chair from the rocking chair position to the dining chair position is as follows: the other end of the connecting part 8 is connected with the seat 2, the connecting part 8 presses the pulling part 15 to rotate clockwise, the pulling part 15 drives the first locking assembly 13 to rotate anticlockwise through the first connecting part 14 to compress the first return spring 28, the first plug pin 21 is led to exit the slotted hole 20 downwards, the restriction of the first plug pin 21 on the plug rod 19 is relieved, the connecting part 8 presses the pulling part 15 and simultaneously presses the first locking part 68 to move leftwards to compress the fourth return spring 67, when the first groove 60 of the connecting part 8 is inserted into the corresponding depth of the protruding part 64 of the seat 2, the connecting part 8 does not press the first locking part 68 to move leftwards, the first locking part 68 moves rightwards under the action of the fourth return spring 67 to lock the locking hole 65 of the connecting part 8, then the plug rod 19 of the dinner plate 1 is inserted into the slotted hole 20 of the seat 2, at the moment, the first switching part 69 cannot push the first movable part 70 to rotate anticlockwise to push the first locking part 70 to move anticlockwise, the first locking part 68 cannot be driven by the first locking part 60, and the safety of the rocking chair can not be guaranteed, and the consumer can not swing safety of the seat can be guaranteed, and the safety of the consumer can not swing the seat can be guaranteed.

Example 4

Referring to fig. 30 to 32, this embodiment also discloses a dining chair for infants, which is different from embodiment 1 or 2 or 3 in that: the lock-unlock mechanism 7 is different.

The infant dining chair of this embodiment also includes a dinner plate 1, a seat 2, a back 3, a support seat 4, a support frame 5, a swinging part 6, a locking and unlocking mechanism 7, a connecting part 8, and a rocking chair position 9 and a dining chair position 10, as in embodiment 1. The specific structure of the other components except for the lock-unlock mechanism 7 can be referred to embodiment 1, and this embodiment will not be repeated.

Referring to fig. 30, differently, in this embodiment, the locking and unlocking mechanism 7 includes a fourth locking portion 83, a fifth locking portion 88, a fourth connecting member 89, and a second switch portion 90, where the fourth locking portion 83 and the fifth locking portion 88 are connected in linkage by the fourth connecting member 89, the second switch portion 90 is connected to the seat 2 and is in transmission fit with the fourth locking portion 83, the fourth locking portion 83 is used to be matched with the dinner plate 1, and the fifth locking portion 88 is used to be matched with the connecting portion 8.

When the connecting part 8 enables the seat part 2 to be connected with the supporting seat 4, the fifth locking part 88 can lock the connecting part 8, and the fifth locking part 88 drives the fourth locking part 83 to act through the fourth connecting piece 89, so that the fourth locking part 83 allows the dinner plate 1 to be connected with the seat part 2 to form a locking arrangement; when the dinner plate 1 is connected with the seat part 2 to form a locking arrangement, the dinner plate 1 limits the fourth locking part 83, so that the fifth locking part 88 keeps locking the connecting part 8, the seat part 2 cannot be manually separated from the supporting seat 4, and the chair position 9 cannot be converted to be used as a rocking chair; when the dinner plate 1 and the seat 2 are separated, the second switch part 90 can drive the fourth locking part 83 to act, the fourth locking part 83 drives the fifth locking part 88 to unlock the connecting part 8 through the fourth connecting piece 89, so that the seat 2 and the supporting seat 4 are allowed to be separated, and the seat 2 and the supporting seat 4 can be separated and converted into the rocking chair position 9 only by manual unlocking or automatic unlocking or linkage unlocking.

Thus, the switching and condition limitation of the locking and unlocking mechanism 7 to the rocking chair position 9 and the dining chair position 10 of the infant dining chair are realized. Compared with the locking and unlocking mechanism 7 of embodiment 1, the locking and unlocking mechanism 7 of the scheme has a simpler overall structure and higher functional integration.

Referring to fig. 30, preferably, the fourth locking portion 83 includes a second movable member 84 and a seventh resetting portion for driving the second movable member 84 to reset, a fifth latch 86 extending into or out of the slot 20 is provided on the second movable member 84, the second movable member 84 is movably disposed with respect to the seat 2 and connected with one end of the fourth connecting member 89, the second switch portion 90 is in driving engagement with the second movable member 84, the insert rod 19 and the fifth latch 86 can be mutually restricted, that is, the fifth latch 86 can be restricted from extending into the slot 20 when the insert rod 19 is inserted into the slot 20, and conversely, the fifth latch 86 can be restricted from being inserted into the slot 20 when the insert rod 19 is extended into the slot 20.

Thus, when in the dining chair position 10, the plunger 19 limits the fifth latch 86 to remain in position to exit the slot 20; when in the rocking position 9, the seventh reset portion drives the second movable member 84 to drive the fifth latch 86 to extend into the slot 20, and the fifth latch 86 prevents the insert rod 19 from being inserted into the slot 20.

Still preferably, the second movable member 84 is pivotally connected to the seat 2, the second switch portion 90 is slidably disposed on the seat 2, and the second movable member 84 is provided with a third chute 85 slidably engaged with the second switch portion 90, so that the movement modes of the second switch portion 90 and the second movable member 84 can be converted by using the third chute 85.

Specifically, the second switch portion 90 may be slidably disposed on the seat 2 along a horizontal or nearly horizontal direction, one end of the second movable member 84 is pivotally connected to the seat 2, and the other end of the second movable member 84 is configured to be connected to the fourth connecting member 89 by a fifth latch 86, so that the second movable member 84 forms a swing link structure, and at this time, when the other end of the second movable member 84 is driven to swing upwards by the second switch portion 90, the second movable member 84 can extend the fifth latch 86 upwards into the slot 20 and pull the fourth connecting member 89 upwards.

In another preferred embodiment, the second movable member 84 is further slidably disposed on the seat 2 along a vertical or near vertical direction like the first movable member 70 of embodiment 2, and at this time, the second movable member 84 is driven to slide upward by the second switch portion 90 so as to extend the fifth latch 86 upward into the slot 20 and pull the fourth connecting member 89 upward.

In this embodiment, the seventh restoring portion is preferably a seventh restoring spring 87, where the seventh restoring spring 87 is disposed between the second movable member 84 and the seat 2, and the seventh restoring spring 87 provides a restoring elastic force to act on the second movable member 84 and is used to indirectly drive the fifth latch 86 to restore and extend into the slot 20 when a preset condition is met. The condition that the preset condition is satisfied means that the dinner plate 1 is separated from the seat 2, and the fifth locking portion 88 does not apply a force to the second movable member 84 through the fourth connecting member 89 to limit the second movable member 84.

Referring to fig. 30 to 32, in the present embodiment, the fifth locking portion 88 includes a sixth movable member 91, a seventh movable member 93, a second locking member 94, an eighth resetting portion, and a ninth resetting portion, the sixth movable member 91, the seventh movable member 93, and the second locking member 94 are movably disposed with respect to the seat portion 2, respectively, and the sixth movable member 91 is connected with the other end of the fourth connecting member 89, the sixth movable member 91 is used for locking or unlocking the connecting portion 8, the second locking member 94 is used for locking the sixth movable member 91 at a position for unlocking the connecting portion 8, the seventh movable member 93 is used for driving the second locking member 94 to act for locking or unlocking the sixth movable member 91, the eighth resetting portion is used for driving the sixth movable member 91 to reset, and the ninth resetting portion is used for driving the seventh movable member 93 to reset. Thus, when the connecting part 8 connects the seat 2 with the supporting seat 4, the connecting part 8 drives the seventh movable member 93 to move, the seventh movable member 93 drives the second locking member 94 to act so as to unlock the sixth movable member 91, and the sixth movable member 91 moves to lock the connecting part 8 under the driving action of the eighth reset part; when the sixth movable member 91 moves the unlocking connection portion 8 under the action of the second switch portion 90, the ninth reset portion drives the seventh movable member 93 to reset, and the seventh movable member 93 drives the second locking member 94 to reset to lock the sixth movable member 91.

In the present embodiment, the eighth restoring portion is preferably an eighth restoring spring 95, the eighth restoring spring 95 being provided between the sixth movable member 91 and the seat portion 2, the eighth restoring spring 95 providing a restoring elastic force to act on the sixth movable member 91; the ninth return portion is preferably a ninth return spring 96, the ninth return spring 96 being provided between the seventh movable member 93 and the seat portion 2, the ninth return spring 96 providing a return spring force to act on the seventh movable member 93.

Specifically, the eighth restoring force provided by the eighth restoring portion for the sixth movable member 91 is greater than the restoring force provided by the seventh restoring portion for the second movable member 84, so that the sixth movable member 91 is kept locked to the connecting portion 8 and the second movable member 84 is rotated downward to keep the fifth latch 86 out of the slot 20 when not affected by other external forces.

In other embodiments, the seventh reset portion, the eighth reset portion, and the ninth reset portion may be other reset structures such as torsion springs, spring plates, reset link structures, and gravity reset counterweight structures, and the specific styles or structures of the seventh reset portion, the eighth reset portion, and the ninth reset portion are not limited herein.

In this embodiment, preferably, the sixth moving member 91 and the seventh moving member 93 are respectively slidably disposed on the seat 2, the sixth moving member 91 is located above the seventh moving member 93, the sixth moving member 91 is provided with a locking slot 92 matched with the second locking member 94, the second locking member 94 is slidably disposed on the seat 2 up and down, the second locking member 94 is also obliquely slidably disposed on the seventh moving member 93, and the second locking member 94 is inserted into or withdrawn from the locking slot 92 up and down along with the sliding of the seventh moving member 93.

In other embodiments, the second locking member 94 may be connected to the seat 2 by swinging, moving along a preset track, or the like, so as to be driven by the seventh moving member 93 to lock or unlock the sixth moving member 91, and the specific structure of the second locking member 94 is not limited herein.

Referring to fig. 30, and referring to the direction shown in fig. 30, for the convenience of understanding the scheme of this embodiment, the process of switching the dining chair from the dining chair position to the rocking chair position is as follows: firstly removing the dinner plate 1 from the seat 2, removing the limit of the inserted link 19 to the fifth latch 86, secondly sliding the second switch part 90, driving the second movable part 84 to rotate upwards to drive the fifth latch 86 to extend into the slot 20 by the second switch part 90, and simultaneously applying force to the sixth movable part 91 through the fourth movable part 89 while the second movable part 84 rotates upwards, so that the sixth movable part 91 slides leftwards to the position corresponding to the position of the second locking part 94, the sixth movable part 91 compresses the eighth reset spring 95 and is separated from the lock hole 65 of the connecting part 8, thereby unlocking the connecting part 8, then the other end of the connecting part 8 can be pulled upwards to be separated from the seat 2, so that the swing arm 49 of the swing part 6 can drive the seat 2 to swing, when the connecting part 8 is separated from the seat 2, the ninth reset spring 96 drives the seventh movable part 93 to slide rightwards to reset, and the seventh movable part 93 moves upwards gradually to the insert the lock groove 92 when reset, thereby locking the sixth movable part 91 is locked at the position of the sixth movable part 91, the second latch is released from the slot 20, the pressure of the dinner plate can be prevented from being released from the seat 2 by the other end of the fifth latch 8, and the dinner plate can be released from the seat 2 when the pressure of the baby is not needed to be released from the seat 20, and the dinner plate 1 can be released.

Similarly, the process of switching the infant dining chair from the rocking chair position to the dining chair position is as follows: the other end of the connecting part 8 is connected with the seat part 2, the connecting part 8 pushes the seventh movable part 93 to slide leftwards to compress the ninth reset spring 96, when the first groove 60 of the connecting part 8 is inserted into the corresponding depth of the protruding part 64 of the seat part 2, the connecting part 8 does not push the seventh movable part 93 to move leftwards, the seventh movable part 93 pushes the second locking part 94 to gradually move downwards to be separated from the locking groove 92 when sliding leftwards, so as to unlock the sixth movable part 91, the sixth movable part 91 slides rightwards under the action of the eighth reset spring 95 and is inserted into the locking hole 65 of the connecting part 8 to form locking, the sixth movable part 91 can exert force on the second movable part 84 through the fourth connecting part 89 when sliding rightwards, so that the second movable part 84 rotates downwards to drive the fifth bolt 86 to withdraw from the slotted hole 20, then the inserted rod 19 of the dinner plate 1 is inserted into the slotted hole 20 of the seat part 2, at the moment, the fifth bolt 86 is limited to be kept at the position withdrawn from the position of the seat part 20, and the dining chair is formed, and the second switch part 90 at the moment can not push the second movable part 84 to rotate rightwards to slide rightwards and then the sixth movable part 84 can not swing upwards to form the safe position with the rocking chair, and the safety of a consumer can not swing can be ensured, and can not the safety can not swing the consumer can not swing the safety, under the test can not can be safely and the test can be ensured can be passed through the swing can be safely and passed through the swing can be ensured.

Example 5

Referring to fig. 33 and 34, this embodiment also discloses a dining chair for infants, which is different from embodiment 1 or 2 or 3 or 4 in that: the locking and unlocking mechanisms are different.

Referring to fig. 33 and 34, differently, in the present embodiment, the locking and unlocking mechanism 7 includes a third locking portion 75 and a movable portion 80, the movable portion 80 is respectively engaged with the third locking portion 75 and the connecting portion 8, and the third locking portion 75 is respectively engaged with the dinner plate 1 and the connecting portion 8; the movable part 80 is used for releasing the restriction of the third locking part 75 when the connecting part 8 connects the seat 2 with the supporting seat 4, so that the third locking part 75 allows the dinner plate 1 to be connected with the seat 2 to form a locking arrangement; the third locking part 75 is used for locking the connecting part 8 when the dinner plate 1 is connected with the seat part 2 to form a locking arrangement, so that the seat part 2 is always connected with the supporting seat 4; the third locking portion 75 also serves to unlock the connecting portion 8 when the dinner plate 1 is separated from the seat 2, thus allowing the seat 2 to be separated from the support seat 4; the movable portion 80 also serves to restrict the third locking portion 75 when the connection portion 8 separates the seat 2 from the support seat 4, such that the third locking portion 75 prevents the dish 1 from being connected to the seat 2, thereby separating the dish 1 from the seat 2. In this way, when the dinner plate 1 is positioned at the dining chair position 10, the third locking part 75 is limited, so that the third locking part 75 keeps locking the connecting part 8, the connection between the seat part 2 and the supporting seat 4 cannot be manually separated, the rocking chair position 9 cannot be converted, and when the rocking chair is used, only after the third locking part 75 is unlocked by the connecting part 8 when the dinner plate 1 is separated from the seat part 2, the seat part 2 and the supporting seat 4 can be separated and can be converted into the rocking chair position 9 by manually unlocking or automatically unlocking or linkage unlocking; when in the rocking chair position 9, the movable part 80 limits the third locking part 75 to prevent the dinner plate 1 from being connected with the seat 2, the dinner plate 1 cannot be manually mounted on the seat 2, the dinner plate cannot be converted into the dining chair position 10, and the dinner plate 1 is allowed to be mounted to be converted into the dining chair position 10 only when the connecting part 8 enables the seat 2 to be connected with the supporting seat 4 when the dining chair is used.

Thus, the switching and condition limitation of the locking and unlocking mechanism 7 to the rocking chair position 9 and the dining chair position 10 of the infant dining chair are realized. Compared with the locking and unlocking mechanism 7 in the embodiment 1, 2, 3 or 4, the locking and unlocking mechanism 7 in the scheme has a simpler overall structure and higher function integration.

Referring to fig. 33 and 34, preferably, the third locking portion 75 includes a third movable member 76 and a fourth movable member 78, the third movable member 76 and the fourth movable member 78 are in driving engagement with each other and are movably disposed with respect to the seat 2, respectively, the third movable member 76 is for preventing or allowing the dinner plate 1 to be connected with the seat 2, and the fourth movable member 78 is for locking or unlocking the connecting portion 8; the movable portion 80 includes a fifth movable member 81 movably disposed with respect to the seat portion 2, and the connection portion 8 can drive the fifth movable member 81 to move to release the restriction of the fourth movable member 78, thereby allowing the third movable member 76 and the fourth movable member 78 to move. Thus, when the connecting portion 8 makes the seat 2 and the supporting seat 4 form a connection, the connecting portion 8 drives the fifth movable member 81, so that the fifth movable member 81 no longer prevents the fourth movable member 78, and at this time, the third movable member 76 and the fourth movable member 78 can be moved synchronously under the action of the dinner plate 1 or under the action of external force or under the action of reset force, so that the third movable member 76 no longer prevents the dinner plate 1 and the fourth movable member 78 locks the connecting portion 8.

Still preferably, the third locking portion 75 further includes a fifth reset portion, the movable portion 80 further includes a sixth reset portion, the third movable member 76 and the fourth movable member 78 are slidably disposed on the seat 2 along different directions, the fifth movable member 81 is pivotally connected to the seat 2, the fifth reset portion is configured to drive the third movable member 76 and the fourth movable member 78 to slidably reset when the dinner plate 1 is separated from the seat 2, and the sixth reset portion is configured to rotationally reset the fifth movable member 81 when the connection portion 8 is configured to separate the seat 2 from the supporting seat 4.

In this way, when the dinner plate 1 is separated from the seat 2, the fifth resetting portion drives the third movable member 76 and the fourth movable member 78 to slide and reset, the fourth movable member 78 unlocks the connecting portion 8 to allow the seat 2 to be separated from the supporting seat 4, and when the connecting portion 8 separates the seat 2 from the supporting seat 4, the sixth resetting portion drives the fifth movable member 81 to rotate and reset to limit the third movable member 76 by the fourth movable member 78, and the third movable member 76 prevents the dinner plate 1 from being connected with the seat 2 to separate the dinner plate 1 from the seat 2, and at this time, is in the rocking chair position 9.

In particular, the third movable member 76 is obliquely slidably disposed on the seat 2, the fourth movable member 78 is slidably disposed on the seat 2 along a horizontal or near-horizontal direction, and the lower end of the third movable member 76 is slidably disposed on a guiding slot in the fourth movable member 78, so as to realize the conversion of the sliding directions of the third movable member 76 and the fourth movable member 78 by using the guiding slot.

In the present embodiment, the fifth restoring portion is preferably a fifth restoring spring 79, the fifth restoring spring 79 is disposed between the third movable member 76 and the seat 2, and the fifth restoring spring 79 provides a restoring spring force to drive the third movable member 76 to slide upward for restoring. The sixth return portion is preferably a sixth return spring 82, where the sixth return spring 82 is disposed between the fifth movable member 81 and the seat 2, and the sixth return spring 82 provides a return elastic force to drive the fifth movable member 81 to rotate and return, so that the fifth movable member 81 limits the actions of the fourth movable member 78 and the third movable member 76.

In other embodiments, the fifth reset portion and the sixth reset portion may be other structures capable of playing a reset role, such as a torsion spring, an elastic sheet, a reset link structure, a gravity reset weight structure, etc., and the specific style or structure of the fifth reset portion and the sixth reset portion is not limited herein.

In particular, one end of the third movable member 76 is provided with a fourth pin 77 extending into or out of the slot 20, and the rod 19 can push the fourth pin 77 out of the slot 20 so that the fourth movable member 78 locks the connecting portion 8.

Thus, when the connecting portion 8 connects the seat 2 with the supporting seat 4, the connecting portion 8 drives the fifth movable member 81 to rotate to release the restriction on the fourth movable member 78, and when the insert rod 19 of the dinner plate 1 is inserted into the slot 20 of the seat 2 to form a locking arrangement, the insert rod 19 pushes the fourth latch 77 to withdraw from the slot 20, the fourth latch 77 drives the third movable member 76 to move so that the other end of the third movable member 76 drives the fourth movable member 78 to lock the connecting portion 8, specifically, the driving portion 61 of the connecting portion 8 pushes the fifth movable member 81 to rotate, the fourth movable member 78 is inserted into the lock hole 65 of the connecting portion 8 to form a locking, and at this time, the dining chair is positioned 10.

By the above scheme, no additional switch is needed for controlling the fourth latch 77 to withdraw from the slot 20, and the overall structure of the locking and unlocking mechanism 7 is further simplified.

Referring to fig. 33 and 34, unlike embodiment 1 or 2 or 3 or 4, the infant dining chair of this embodiment further comprises a blocking portion 97, wherein the seat portion 2 and the back portion 3 are pivotally connected, the blocking portion 97 is connected to the back portion 3 and/or the seat portion 2, and the locking and unlocking mechanism 7 cooperates with the blocking portion 97 to limit the angle between the seat portion 2 and the back portion 3, wherein the adjustable maximum angle M between the seat portion 2 and the back portion 3 in the rocking chair position 9 is larger than the adjustable maximum angle N between the seat portion 2 and the back portion 3 in the dining chair position 10.

The angle between the seat 2 and the back 3 means: the angle between the line of the front end of the seat 2 and the pivot point (the pivot point between the seat 2 and the back 3) and the line of the rear end of the back 3 and the pivot point (the pivot point between the seat 2 and the back 3). When the rocking chair is positioned at the rocking chair position 9, the back 3 can be turned forwards or backwards relative to the seat 2, the minimum included angle between the seat 2 and the back 3, which can be achieved by the forward turning of the back 3, is not particularly limited, and the maximum included angle between the seat 2 and the back 3, which can be achieved by the backward turning of the back 3, is an adjustable maximum included angle M; when the back 3 is positioned at the dining chair position 10, the back 3 can also be turned forwards or backwards relative to the seat 2, the minimum included angle between the seat 2 and the back 3, which can be achieved by turning the back 3 forwards, is not particularly limited, but the maximum included angle between the seat 2 and the back 3, which can be achieved by turning the back 3 backwards, is only the adjustable maximum included angle N. In addition, can be equipped with multi-gear contained angle adjusting device between seat 2 and the back 3, multi-gear contained angle adjusting device can adjust the two contained angles of seat 2 and back 3 and make both stay in a plurality of contained angle gears to satisfy the operation requirement at different inclination. It should be noted that the innovation point of the present utility model is not a specific structure of the multi-gear included angle adjusting device, and the specific structure of the multi-gear included angle adjusting device may be any known structure.

Therefore, by utilizing the cooperation of the locking and unlocking mechanism 7 and the blocking part 97, when the rocking chair or the dining chair is switched, the maximum included angle between the seat part 2 and the back part 3 can be correspondingly adjusted, so that when the rocking chair is used, the back part 3 can be increased in angle relative to the seat part 2, the primary infant is more comfortable, the healthy development of the primary infant is more facilitated, the waist supporting force of the primary infant is weaker, the smaller the included angle between the seat part 2 and the back part 3 is, the stronger the waist supporting force of the primary infant is required, the larger the included angle between the seat part 2 and the back part 3 is, the smaller the waist supporting force of the primary infant is required, the service age of the dining chair is 8 months to 3 years, and the service age of the chair can be changed into 0 to 3 years after the included angle between the seat part 2 and the back part 3 is increased, so that the service age of the chair is increased, the service age of the chair is also beneficial to the body development and the pacifying of the primary infant, and the cost performance of the product is higher.

Preferably, the blocking portion 97 is fixedly connected to the back portion 3 and rotates along with the back portion 3, when the dinner plate 1 is connected with the seat portion 2 to form a locking arrangement, the locking and unlocking mechanism 7 locks the connecting portion 8, and the locking and unlocking mechanism 7 is close to the blocking portion 97 so as to limit the continuous rotation of the blocking portion 97.

That is, when the connecting portion 8 connects the seat 2 with the supporting seat 4 and simultaneously connects the locking and unlocking mechanism 7 to allow the dinner plate 1 to be connected with the seat 2 to form a locking arrangement, and when the dinner plate 1 is connected with the seat 2 to form a locking arrangement and the locking and unlocking mechanism 7 always connects the seat 2 with the supporting seat 4, the dinner plate is located at the dining chair position 10, and at the moment, the locking and unlocking mechanism 7 can prevent the blocking portion 97 from forming the largest included angle between the back 3 and the seat 2, which is only the largest included angle (i.e. the adjustable maximum included angle N) set by the seat 2 and the back 3 when the dinner plate is located at the dining chair position 10.

That is, when the connecting portion 8 separates the seat 2 from the supporting seat 4 and the locking and unlocking mechanism 7 prevents the dinner plate 1 from being connected with the seat 2 so as to separate the dinner plate 1 from the seat 2, the locking and unlocking mechanism 7 is at the rocking chair position 9 at this time, and the locking and unlocking mechanism 7 gives up the space for the blocking portion 97 to rotate at this time, so that the largest included angle formed by the back 3 and the seat 2 is the same as the largest included angle (i.e. the adjustable largest included angle M) set by the seat 2 and the back 3 when the locking and unlocking mechanism is at the rocking chair position 9.

In other embodiments, the blocking portion 97 may also adopt other known structures that can cooperate with the locking and unlocking mechanism 7 to limit the continued rotation of the back 3, such as: a swing rod sliding block mechanism can be formed between the blocking part 97 and the back 3, wherein one end of the blocking part 97 is pivoted to the back 3, the other end of the blocking part 97 is slidingly arranged on the seat 2 along a specific track, and the locking and unlocking mechanism 7 is used for adjusting or blocking the movement track of the blocking part 97 to limit the blocking part 97 and further limit the continuous rotation of the back 3; another example is: the blocking part 97 rotates relatively on the seat part 2 and the back part 3 to form a seesaw structure, and the locking and unlocking mechanism 7 is used for adjusting or blocking the swing amplitude of the free end of the blocking part 97 to limit the blocking part 97 and further limit the continuous rotation of the back part 3; another example is: the blocking portion 97 is pivoted with the seat 2, a blocking block is arranged on the blocking portion 97 and can be propped against or separated from the back portion 3, and the locking and unlocking mechanism 7 is used for adjusting or blocking the rotation amplitude of the blocking portion 97 to limit the blocking portion 97, so that the blocking block on the blocking portion 97 is used for limiting the continuous rotation of the back portion 3. As for other implementations, the specific structure of the blocking portion 97 is not limited in this embodiment, and any specific structure of the blocking portion 97 that can cooperate with the locking and unlocking mechanism 7 to limit the continued rotation of the back portion 3 can be considered as the protection scope of the present utility model.

It should be noted that, the blocking portion 97 may be used in cooperation with the locking and unlocking mechanism 7 of the present embodiment; the blocking portion 97 may also be applied in combination to embodiment 1 or 2 or 3 or 4 such that the blocking portion 97 is used in cooperation with the lock unlocking mechanism 7 of embodiment 1 or 2 or 3 or 4, as some possible examples, for example: the blocking portion 97 can be engaged with the pulling member 15 of embodiment 1 or 2 or 3; or the blocking portion 97 may be engaged with the sixth movable member 91 of embodiment 4.

In this embodiment, preferably, the blocking portion 97 is matched with the third movable member 76, specifically, when the third movable member 76 slides obliquely downward, the lower end of the third movable member 76 will be close to the blocking portion 97 to prevent the blocking portion 97 from rotating continuously, so that the back 3 cannot be adjusted downward by increasing the angle relative to the seat 2 so that the included angle cannot exceed the adjustable maximum included angle N.

Referring to fig. 33 and 34, and referring to the direction shown in fig. 33, in order to facilitate understanding of the scheme of the embodiment, the process of switching the dining chair from the dining chair position to the rocking chair position is as follows: firstly, the dinner plate 1 is detached from the seat 2, the restriction of the inserted link 19 on the fourth bolt 77 is released, the third movable piece 76 slides obliquely upwards under the action of the fifth reset spring 79 to drive the fourth bolt 77 to extend into the slotted hole 20, the lower end of the third movable piece 76 is far away from the blocking portion 97 to leave the space for the blocking portion 97 to rotate, the third movable piece 76 slides obliquely upwards and drives the fourth movable piece 78 to slide leftwards, so that the fourth movable piece 78 unlocks the connecting portion 8, then the other end of the connecting portion 8 can be pulled upwards to be separated from the seat 2, so that the swing arm 49 of the swinging portion 6 can drive the seat 2 to swing, when the connecting portion 8 is separated from the seat 2, the connecting portion 8 releases the pressing of the fifth movable piece 81, the fifth movable piece 81 rotates anticlockwise under the action of the sixth reset spring 82 to reset, the fifth movable member 81 is reset to limit the movement of the fourth movable member 78 and the third movable member 76, so that the fourth movable member 78 is locked at the left side position, the third movable member 76 is locked at the upper side position, and the fourth latch 77 is locked at the position extending into the slot hole 20, at this time, the fourth latch 77 prevents the insert rod 19 of the dinner plate 1 from being largely inserted into the slot hole 20, so that the dinner plate 1 and the seat 2 cannot be locked, a rocking chair position is formed, a consumer can use the rocking chair, and the rocking chair can be used for soothing the child, so that the pressure of the child on the mother needs to be held in real time, the time is saved for other things, and meanwhile, the back 3 can be increased in angle relative to the seat 2, so that the newborn infant is more comfortable, and the body health development of the newborn infant is more beneficial.

Similarly, the process of switching the infant dining chair from the rocking chair position to the dining chair position is as follows: the other end of the connecting part 8 is connected with the seat 2, the connecting part 8 pushes against the fifth movable part 81 to rotate clockwise to compress the sixth return spring 82, the fifth movable part 81 gives up the space for the fourth movable part 78 to slide rightwards, the locking of the fourth movable part 78, the third movable part 76 and the fourth bolt 77 is released, then the inserted rod 19 of the dinner plate 1 is inserted into the slotted hole 20 of the seat 2 to lock the dinner plate 1 and the seat 2, the inserted rod 19 pushes against the fourth bolt 77 to withdraw from the slotted hole 20, the fourth bolt 77 drives the third movable part 76 to move downwards obliquely and compress the fifth return spring 79, the third movable part 76 moves downwards obliquely and simultaneously drives the fourth movable part 78 to slide rightwards, so that the fourth movable part 78 is inserted into the locking hole 65 of the connecting part 8 to form locking, at the moment, a dining chair position is formed, the rocking chair position is ensured, the safety of consumers can be ensured through European safety test, simultaneously the lower end of the third movable part 76 pushes against the blocking part 97 to stop the rotation of the blocking part 97, and the relative angle 3 of the back part 97 cannot be adjusted downwards more than the maximum angle N.

EXAMPLE 6

Referring to fig. 35 and 36, the present embodiment discloses a connection structure of a connection portion 8, which can be applied to the infant dining chair of any one of embodiments 1 to 5, so that when the connection portion 8 is unlocked, the connection portion 8 can be automatically reset to separate the seat portion 2 from the support seat 4.

As with the connecting portion 8 of embodiments 1 to 5, in this embodiment, one end of the connecting portion 8 is pivotally connected to the supporting base 4 or the supporting frame 5, the other end of the connecting portion 8 is connected to or separated from the seat portion 2, the other end of the connecting portion 8 is provided with a first groove 60, and the seat portion 2 is provided with a protruding portion 64 that mates with the first groove 60.

The point of difference from the connecting portion 8 of embodiments 1 to 5 is that, in the present embodiment, a tenth resetting portion is further provided between the connecting portion 8 and the supporting seat 4 or the supporting frame 5, and the tenth resetting portion is used for driving the connecting portion 8 to movably reset so that the first groove 60 of the connecting portion 8 is separated from the protruding portion 64 of the seat 2. In addition, in order to avoid affecting the automatic resetting of the connection portion 8, it will be appreciated that the connection portion 8 will not be provided with a catch 59 as in embodiment 1.

Referring to fig. 35 and 36, taking the application of the connection structure of the connection portion 8 to the infant dining chair of embodiment 5 and taking the pivoting of one end of the connection portion 8 and the supporting seat 4 as an example, specifically, the supporting seat 4 further includes a bearing seat 98, the bearing seat 98 is mounted on the upper surface of the mounting box 51 in a protruding manner, the connection portion 8 is pivoted on the bearing seat 98, the tenth return portion is preferably a tenth return spring 66, the tenth return spring 66 is connected between the connection portion 8 and the bearing seat 98, and when the fourth movable member 78 exits the locking hole 65 of the connection portion 8, the tenth return spring 66 elastically drives the connection portion 8 to rotate so that the first groove 60 is separated from the protruding portion 64 of the seat 2 upwards.

In this way, when unlocking the connection portion 8, the connection portion 8 can be automatically reset by the tenth return spring 66 to separate the seat portion 2 from the support seat 4.

In other embodiments, the tenth resetting portion may be a torsion spring, a spring plate, a resetting link structure, a gravity resetting weight structure, or other structures capable of playing a resetting role, and the specific style or structure of the tenth resetting portion is not limited herein.

Similarly, when applied to embodiment 1, when the lock pin assembly 27 is withdrawn from the lock hole 65 of the connecting portion 8, the tenth return spring 66 elastically drives the connecting portion 8 to rotate so that the first recess 60 is disengaged upward from the projection 64 of the seat 2; when the first locking piece 68 is withdrawn from the locking hole 65 of the connecting portion 8 as applied to the embodiment 2 or 3, the tenth return spring 66 elastically drives the connecting portion 8 to rotate so that the first groove 60 is upwardly separated from the protruding portion 64 of the seat portion 2; when the sixth movable member 91 is withdrawn from the locking hole 65 of the connecting portion 8, the tenth return spring 66 elastically drives the connecting portion 8 to rotate so that the first recess 60 is upwardly separated from the protruding portion 64 of the seat portion 2, as applied to embodiment 4.

Example 7

Referring to fig. 37, the present embodiment discloses a connection structure of a connection portion 8, which can be applied to the infant dining chair of any one of embodiments 1 to 5, and can also connect or disconnect the seat portion 2 with or from the supporting seat 4.

The point of difference from the connection portion 8 of embodiments 1 and 6 is that in the present embodiment, the connection portion 8 includes a first connection post 99 and a second connection post 100, the first end of the first connection post 99 is connected to the seat portion 2, the first end of the second connection post 100 is connected to the support seat 4 or the support frame 5, the second end of the first connection post 99 is detachably connected to the second end of the second connection post 100, specifically, when the second end of the first connection post 99 is connected to the second end of the second connection post 100, the seat portion 2 is connected to the support seat 4, and when the second end of the first connection post 99 is separated from the second end of the second connection post 100, the seat portion 2 is separated from the support seat 4.

It should be noted that, the detachable connection manner between the second end of the first connecting post 99 and the second end of the second connecting post 100 may be any manner, such as a rotation fastening connection, an inserting connection, etc., and the detachable connection manner is not limited in this embodiment.

Referring to fig. 37, in the present embodiment, taking a rotary snap connection as an example, a first end of the first connecting post 99 is pivoted to the seat 2, a first end of the second connecting post 100 is pivoted to the supporting seat 4 or the supporting frame 5, and a second end of the first connecting post 99 is detachably snap-connected to a second end of the second connecting post 100. However, as in embodiment 6, the supporting base 4 also includes a bearing base 98, where the bearing base 98 is mounted on the upper surface of the mounting box 51 in a protruding manner, except that the second connecting post 100 is pivotally connected to the bearing base 98, and when the second end of the first connecting post 99 is engaged with the second end of the second connecting post 100, the bearing base 98 can prevent the second end of the second connecting post 100 from rotating away from the second end of the first connecting post 99 so as not to be unlocked.

In addition, a locking hole 65 may be provided on the first end of the first connection post as well. In particular applications, the lock pin assembly 27 of embodiment 1 can be inserted into the lock hole 65 of the first connecting column to form a lock, the first locking member 68 of embodiment 2 or 3 can be inserted into the lock hole 65 of the first connecting column to form a lock, the sixth movable member 91 of embodiment 4 can be inserted into the lock hole 65 of the first connecting column to form a lock, and the fourth movable member 78 of embodiment 5 can be inserted into the lock hole 65 of the first connecting column to form a lock.

Although the utility model has been described hereinabove with reference to embodiments, various modifications may be made thereto and the utility model may be practiced in equivalent or other ways that are well known to those of skill in the art without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner so long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of brevity and resource saving. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims. The utility model is described with respect to one end and the other end only by the names describing objects, and it is understood that the top end of an object may also be understood as a section of an object, and the fixed arrangement referred to in the utility model may be understood as: detachably fixed connection (e.g. using bolts or screws or snap connections) can also be understood as: the first, second and third embodiments of the present utility model are merely names for describing things, and have no specific meaning.

Claims

1. The utility model provides an infant dining chair, includes dinner plate, seat, back, supporting seat, support frame, its characterized in that: the seat part swings along with the swinging of the swinging part, the connecting part is used for separating the seat part from the supporting seat, and the locking and unlocking mechanism prevents the dinner plate from being connected with the seat part so that the dinner plate is separated from the seat part when the dinner plate is positioned at the rocking chair position at the moment; the connecting part enables the seat part to be connected with the supporting seat, and simultaneously enables the locking and unlocking mechanism to allow the dinner plate to be connected with the seat part to form locking arrangement, and the dinner plate is connected with the seat part to form locking arrangement, and the locking and unlocking mechanism always enables the seat part to be connected with the supporting seat when being positioned at the dining chair position; the locking and unlocking mechanism allows the seat to be separated from the support seat when the dinner plate is separated from the seat.

2. A dining chair for infants as claimed in claim 1, wherein: the locking and unlocking mechanism comprises a first locking part and a second locking part, wherein the first locking part is used for preventing the dinner plate from being connected with the seat when the connecting part enables the seat to be separated from the supporting seat, so that the dinner plate is separated from the seat, the second locking part is used for allowing the dinner plate to be connected with the seat to form a locking arrangement when the connecting part enables the seat to be connected with the supporting seat, the second locking part is also used for enabling the seat to be always connected with the supporting seat when the dinner plate is connected with the seat to form the locking arrangement, and the second locking part is also used for allowing the seat to be separated from the supporting seat when the dinner plate is separated from the seat.

3. A dining chair for infants as claimed in claim 2, wherein: the first locking part comprises a first locking component and a first connecting piece, wherein the first locking component is connected with one end of the first connecting piece, the first locking part further comprises a pulling piece, and the pulling piece is connected with the other end of the first connecting piece.

4. A dining chair for infants as claimed in claim 3, wherein: the dinner plate is provided with a plug rod, the seat is provided with a slotted hole for the plug rod to insert, the first locking component comprises a first bolt used for preventing the plug rod, and the first bolt can extend into or withdraw from the slotted hole.

5. The infant dining chair of claim 4, wherein: the first locking component and the seat are pivoted, the pulling piece and the seat are pivoted, and when the first groove of the connecting part is matched with the protruding part of the seat, the driving part of the connecting part drives the pulling piece to move downwards to drive the first bolt of the first locking component to move downwards so as to allow the dinner plate to be connected with the seat to form locking.

6. The infant dining chair of claim 5, wherein: the first return spring is disposed between the first locking assembly and the seat.

7. A dining chair for infants as claimed in claim 2, wherein: the second locking part comprises a second locking component and a second connecting piece, wherein the second locking component is connected with one end of the second connecting piece, the second locking part also comprises a third locking component, and the third locking component is connected with the other end of the second connecting piece.

8. The infant dining chair of claim 7, wherein: the dinner plate is provided with a plug rod, the seat is provided with a slot hole for the plug rod to insert, the second locking assembly comprises a second plug pin, the second plug pin can extend into or withdraw from the slot hole, when the plug rod is inserted into the slot hole, the plug rod can drive the second plug pin to withdraw from the slot hole, and the second connecting piece can drive the third locking assembly to be locked with the connecting part.

9. The infant dining chair of claim 8, wherein: the second locking assembly is pivoted with the seat.

10. The infant dining chair of claim 8, wherein: the third locking assembly comprises a rotating rod and a locking pin assembly, the rotating rod is pivoted with the seat, one end of the rotating rod is connected with the second connecting piece, the other end of the rotating rod is pivoted with the locking pin assembly, and the locking pin assembly is used for locking or unlocking with the connecting portion.

11. An infant dining chair according to claim 10, wherein: a second return spring is also included and is disposed between the latch assembly and the seat.

12. The infant dining chair of claim 7, wherein: the third locking assembly comprises a fourth resetting part and a first locking piece for locking or unlocking the connecting part, the first locking piece is movably arranged relative to the seat and is connected with the other end of the second connecting piece, and the fourth resetting part can drive the first locking piece to move towards the connecting part for resetting so as to lock the connecting part.

13. An infant dining chair according to claim 12, wherein: the first locking piece is arranged on the seat part in a sliding manner along the direction facing to or away from the connecting part, the fourth reset part comprises a fourth reset spring, and the fourth reset spring is arranged between the first locking piece and the seat part and drives the first locking piece to slide towards the connecting part by elasticity.

14. An infant dining chair according to claim 12, wherein: the dinner plate is provided with an inserting rod, the seat is provided with a slotted hole for inserting the inserting rod, the second locking assembly comprises a first switch part and a first movable part, a limiting part which is used for being matched with the inserting rod is arranged on the first movable part, the first movable part is movably arranged relative to the seat and is connected with one end of the second connecting part, and the first switch part is connected with the seat and is in transmission fit with the first movable part.

15. An infant dining chair according to claim 14, wherein: the limiting part comprises a third bolt which is used for extending into or exiting from the slotted hole, the first movable part is slidably arranged on the seat part along a first direction, the first switch part is slidably arranged on the seat part along a second direction, the first direction and the second direction form an included angle, and a first chute which is slidably matched with the first switch part is arranged on the first movable part.

16. An infant dining chair according to claim 14, wherein: the limiting part comprises a hook used for hooking the inserted link, the first movable part is pivoted to the seat, the first switch part is slidably arranged on the seat, a second chute which is slidably matched with the first switch part is arranged on the first movable part, one end of the second connecting part is connected to one end of the first movable part, and the hook is arranged at the other end of the first movable part.

17. A dining chair for infants as claimed in claim 1, wherein: the locking and unlocking mechanism comprises a third locking part and a movable part, the movable part is respectively matched with the third locking part and the connecting part, and the third locking part is respectively matched with the dinner plate and the connecting part; the movable part is used for releasing the limit of the third locking part when the connecting part enables the seat part to be connected with the supporting seat, so that the third locking part allows the dinner plate to be connected with the seat part to form a locking arrangement; the third locking part is used for locking the connecting part when the dinner plate is connected with the seat part to form a locking arrangement, so that the seat part is always connected with the supporting seat; the third locking part is also used for unlocking the connecting part when the dinner plate is separated from the seat part, so that the seat part is allowed to be separated from the supporting seat; the movable part is also used for limiting the third locking part when the connecting part enables the seat part to be separated from the supporting seat, so that the third locking part prevents the dinner plate from being connected with the seat part, and the dinner plate is separated from the seat part.

18. An infant dining chair according to claim 17, wherein: the third locking part comprises a third movable part and a fourth movable part, the third movable part and the fourth movable part are mutually matched in a transmission way and are respectively movably arranged relative to the seat part, the third movable part is used for preventing or allowing the dinner plate to be connected with the seat part, and the fourth movable part is used for locking or unlocking the connecting part; the movable part comprises a fifth movable part which is movably arranged relative to the seat part, and the connecting part can drive the fifth movable part to move so as to release the limit on the fourth movable part, thereby allowing the third movable part and the fourth movable part to move.

19. An infant dining chair according to claim 18, wherein: the third locking part further comprises a fifth resetting part, the movable part further comprises a sixth resetting part, the third movable part and the fourth movable part are respectively arranged on the seat in a sliding mode along different directions, the fifth movable part is pivoted to the seat, the fifth resetting part is used for driving the third movable part and the fourth movable part to slide and reset when the dinner plate is separated from the seat, and the sixth resetting part is used for enabling the fifth movable part to rotate and reset when the connecting part enables the seat to be separated from the supporting seat.

20. An infant dining chair according to claim 19, wherein: the dinner plate is provided with a plug rod, the seat is provided with a slot hole for the plug rod to insert, one end of the third movable piece is provided with a fourth plug pin extending into or exiting from the slot hole, and the plug rod can push the fourth plug pin to exit from the slot hole so that the fourth movable piece locks the connecting part.

21. A dining chair for infants as claimed in claim 1, wherein: the locking and unlocking mechanism comprises a fourth locking part, a fifth locking part, a fourth connecting piece and a second switch part, wherein the fourth locking part and the fifth locking part are in linkage connection through the fourth connecting piece, the second switch part is connected to the seat part and is in transmission fit with the fourth locking part, the fourth locking part is used for being matched with a dinner plate, and the fifth locking part is used for being matched with the connecting part; when the connecting part enables the seat part to be connected with the supporting seat, the fifth locking part can lock the connecting part, and the fifth locking part drives the fourth locking part to act through the fourth connecting piece, so that the fourth locking part allows the dinner plate to be connected with the seat part to form a locking arrangement; when the dinner plate is connected with the seat part to form a locking arrangement, the dinner plate limits the fourth locking part, so that the fifth locking part keeps locking the connecting part; when the dinner plate is separated from the seat part, the second switch part can drive the fourth locking part to act, and the fourth locking part drives the fifth locking part to unlock the connecting part through the fourth connecting piece, so that the seat part is allowed to be separated from the supporting seat.

22. An infant dining chair according to claim 21, wherein: the dinner plate is provided with an inserting rod, the seat is provided with a slotted hole for inserting the inserting rod, the fourth locking part comprises a second movable part and a seventh resetting part for driving the second movable part to reset, the second movable part is provided with a fifth bolt extending into or exiting from the slotted hole, the second movable part is movably arranged relative to the seat and is connected with one end of a fourth connecting part, the second switch part is in transmission fit with the second movable part, and the inserting rod and the fifth bolt can be mutually limited.

23. An infant dining chair according to claim 22, wherein: the second movable piece is pivoted to the seat part, the second switch part is slidably arranged on the seat part, and a third chute which is slidably matched with the second switch part is arranged on the second movable piece.

24. An infant dining chair according to claim 22, wherein: the fifth locking part comprises a sixth moving part, a seventh moving part, a second locking part, an eighth resetting part and a ninth resetting part, wherein the sixth moving part, the seventh moving part and the second locking part are respectively and movably arranged relative to the seat, the sixth moving part is connected with the other end of the fourth connecting part, the sixth moving part is used for locking or unlocking the connecting part, the second locking part is used for locking the sixth moving part at the position of the unlocking connecting part, the seventh moving part is used for driving the second locking part to act so as to lock or unlock the sixth moving part, the eighth resetting part is used for driving the sixth moving part to reset, and the ninth resetting part is used for driving the seventh moving part to reset.

25. An infant dining chair according to claim 24, wherein: the sixth moving part and the seventh moving part are respectively and slidably arranged on the seat, the sixth moving part is positioned above the seventh moving part, a locking groove matched with the second locking part is formed in the sixth moving part, the second locking part is vertically and slidably arranged on the seat, the second locking part is also obliquely and slidably arranged on the seventh moving part, and the second locking part is upwardly inserted into or downwardly withdrawn from the locking groove along with the sliding of the seventh moving part.

26. A dining chair for infants as claimed in claim 1, wherein: one end of the connecting part is pivoted with the supporting seat or the supporting frame, the other end of the connecting part is connected with or separated from the seat part, a first groove is formed in the other end of the connecting part, and a protruding part matched with the first groove is arranged on the seat part.

27. An infant dining chair according to claim 26, wherein: the other end of the connecting part is also provided with a buckle for forming clamping with the protruding part.

28. An infant dining chair according to claim 26, wherein: a tenth reset part is further arranged between the connecting part and the supporting seat or the supporting frame, and the tenth reset part is used for driving the connecting part to movably reset so that the first groove of the connecting part is separated from the protruding part of the seat.

29. A dining chair for infants as claimed in claim 1, wherein: the connecting portion comprises a first connecting column and a second connecting column, wherein the first end of the first connecting column is connected with the seat, the first end of the second connecting column is connected with the supporting seat or the supporting frame, the seat is connected with the supporting seat when the second end of the first connecting column is connected with the second end of the second connecting column, and the seat is separated from the supporting seat when the second end of the first connecting column is separated from the second end of the second connecting column.

30. An infant dining chair according to claim 29, wherein: the first end of the first connecting column is pivoted with the seat part, the first end of the second connecting column is pivoted with the supporting seat or the supporting frame, and the second end of the first connecting column is detachably buckled with the second end of the second connecting column.

31. An infant dining chair according to any one of claims 1 to 30, wherein: the rocking chair is characterized by further comprising a blocking part, the seat part is pivotally connected with the back part and/or the seat part, the blocking part is connected with the back part and/or the seat part, and the locking and unlocking mechanism is matched with the blocking part to limit the included angle between the seat part and the back part, wherein the adjustable maximum included angle M between the seat part and the back part when the rocking chair is positioned is larger than the adjustable maximum included angle N between the seat part and the back part when the rocking chair is positioned.

32. An infant dining chair according to claim 31, wherein: the blocking part is fixedly connected to the back and rotates along with the back, when the dinner plate is connected with the seat part to form a locking arrangement, the locking and unlocking mechanism locks the connecting part, and the locking and unlocking mechanism is close to the blocking part so as to limit the continuous rotation of the blocking part.

33. A dining chair for infants as claimed in claim 1, wherein: the seat comprises a base and an armrest seat, the swinging part is connected with the base, the swinging part is arranged on the supporting seat, the supporting frame comprises a first supporting frame and a second supporting frame, and further comprises a sliding mechanism, the sliding mechanism can enable the second supporting frame to slide up and down relative to the first supporting frame, the first supporting frame is supported on a horizontal plane, the second supporting frame is supported from the lower end by the first supporting frame, the second supporting frame is fixedly arranged with the supporting seat, and the locking and unlocking mechanism is arranged in the armrest seat.

34. An infant dining chair according to claim 33, wherein: a third connecting piece is arranged between the swinging part and the base, and the base is connected with the swinging part through the third connecting piece; the third connecting piece is fixedly arranged with the seat rotating shaft, the third connecting piece is U-shaped, and a matching part matched with the third connecting piece is transversely arranged on the base.

35. An infant dining chair according to claim 33, wherein: the folding mechanism is arranged on the first supporting frame, the first supporting frame comprises a first supporting piece and a second supporting piece, and the folding mechanism can enable the first supporting piece to be folded relative to the second supporting piece.

36. An infant dining chair according to claim 34, wherein: the sliding mechanism comprises a sliding switch, a pull rope and a locking unlocking part, wherein the sliding switch is arranged on a supporting seat or a second supporting frame, one end of the pull rope is connected with the sliding switch, the other end of the pull rope is connected with the locking unlocking part, the locking unlocking part is arranged between the first supporting frame and the second supporting frame, the locking unlocking part comprises a hole arranged on the first supporting frame, a pin arranged on the second supporting frame, a driving piece connected with the pin, and a reset spring, and the driving piece is connected with the other end of the pull rope.

37. An infant dining chair according to claim 34, wherein: the swinging part comprises a first rotating shaft and a second rotating shaft, the supporting seat comprises an installation seat, one ends of the first rotating shaft and the second rotating shaft are pivoted with the installation seat, and the other ends of the first rotating shaft and the second rotating shaft are pivoted with the third connecting piece.

38. An infant dining chair according to claim 33, wherein: the swing portion includes seat axis of rotation, drive shaft, swing arm, spacing groove, the supporting seat includes mount pad, mounting box, mount pad, swing arm, spacing groove, drive shaft are installed in the mounting box, be equipped with the recess that supplies connecting portion to inlay on the mounting box, seat axis of rotation and swing arm pivot, the one end and the seat of seat axis of rotation are connected, the other end of seat axis of rotation is provided with the rotating member, the rotating member cooperates with the spacing groove, the one end and the swing arm pivot of drive shaft, the other end and the mount pad pivot of drive shaft, second support frame integrated into one piece parcel is outside the mounting box.

39. An infant dining chair according to claim 38, wherein: the electric drive mechanism is characterized by further comprising an electric part, wherein the driving shaft is obliquely arranged, the other end of the driving shaft is connected with the electric part, and the electric part can enable the driving shaft to rotate.