CN107259873B

CN107259873B - Novel foldable child dining chair

Info

Publication number: CN107259873B
Application number: CN201710664891.4A
Authority: CN
Inventors: 李志国
Original assignee: Ningbo Mybaby Baby Products Manufacturing Co Ltd
Current assignee: Ningbo Mybaby Baby Products Manufacturing Co Ltd
Priority date: 2017-08-07
Filing date: 2017-08-07
Publication date: 2023-07-04
Anticipated expiration: 2037-08-07
Also published as: CN107259873A

Abstract

The invention discloses a novel foldable dining chair for children, which structurally comprises a folding supporting frame, a folding seat and the like, wherein a front supporting tube group and a rear supporting tube group of the folding supporting frame are formed into an inverted V-shaped folding frame through a top hinging point, a seat plate of the folding seat and the front supporting tube group are hinged and rotated through the front hinging point, and a back plate and the rear supporting tube group are mutually slid through a rear sliding point; therefore, the child dinning chair can be unfolded or folded through the mutual matching of the three joint mechanisms of the top hinge point, the front hinge point and the rear sliding point. The improved child dining chair has the advantages of simple, convenient and labor-saving operation, and brings convenience and more selection opportunities for the purchase of consumers, thereby meeting the market demands.

Description

Novel foldable child dining chair

Technical Field

The invention relates to a dining chair structure for children to take dinner, in particular to a novel foldable dining chair for children.

Background

The child dining chair is a special chair for children to take, can be structurally divided into a wood dining chair, a bamboo dining chair and a plastic metal rod combined dining chair, and can be structurally divided into a fixed dining chair and a folding dining chair, and the folding dining chair can be unfolded and folded when not in use, so that the child dining chair is greatly convenient for parents to use and store, and is popular with parents of infants. At present, the folding dining chair has been developed into an integral folding from the earliest disassembly and folding, namely, the dining chair is not required to be disassembled by too many parts, and the dining chair can be unfolded or folded integrally by only operating one device on the dining chair. However, with the continuous expansion of the infant product market, the existing child dining chairs are difficult to meet the market demands, especially the integral unfolding and folding child dining chairs, have higher research and development technical requirements, so that the available products on the market are fewer, and if more integral folding child dining chairs with different structures and operation modes can be provided, convenience and more selection opportunities are definitely brought to the purchase of consumers.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a novel foldable child dining chair which is simple, convenient and labor-saving to operate.

The technical problems of the invention are realized by the following technical scheme:

a novel foldable child dining chair, which comprises a folding bracket and a folding seat; the folding bracket comprises a front supporting tube group and a rear supporting tube group; the folding seat comprises a seat board and a backrest board, the rear part of the seat board is hinged with the bottom of the backrest board, and the front support pipe group and the rear support pipe group form an inverted V-shaped folding frame through a top hinge point; a front hinging point for hinging and rotating is arranged between the seat board and the front supporting tube group; the folding support frame is unfolded to be in an inverted V shape, and the rear sliding point is locked on the rear support tube group to be unfolded; the folding support frames are closed and folded, the rear sliding point slides along the rear support tube group, and the child dining chair is folded.

The back sliding point is an adjusting piece which is slidably arranged on the back supporting tube group, and the backboard is fixed with the adjusting piece.

The adjusting piece is provided with a plurality of gear grooves; the back board is provided with an adjusting rod which moves up and down at the rear part; the child dining chair is unfolded, and the adjusting rod moves downwards to be selectively assembled in a plurality of gear grooves on the adjusting piece; the child dining chair is folded, the adjusting rod moves upwards to be separated from the gear groove, and the folding chair is closed and folded to be clung to the folding support frame.

The front support tube group comprises two front support tubes which are arranged left and right in parallel, front support feet connected to the bottom ends of the two front support tubes, pedals connected to the middle parts of the two front support tubes and handrail parts respectively arranged at the top ends of the two front support tubes; the rear support tube group comprises two rear support tubes which are arranged left and right in parallel, rear support feet connected to the bottom ends of the two rear support tubes, and connecting pieces respectively arranged at the top ends of the two rear support tubes; the handrail piece and the connecting piece are mutually hinged to form an inverted V-shaped folding support; the adjusting piece is slidably mounted on the rear supporting tube.

The folding device is arranged at the hinge joint of the armrest piece and the connecting piece, the adjusting piece slides along the rear supporting tube and is locked at the top of the folding supporting frame by the folding device, and the child dining chair is unfolded; the adjusting piece is released by the folding device and slides downwards along the rear supporting tube of the folding supporting frame, the folding supporting frame is closed and folded, and the child dining chair is folded.

The folding device comprises a folding button and a folding buckle with a seesaw type structure, wherein one end of the folding buckle is upwarped to contact with the folding button, and the other end of the folding buckle is provided with a locking block; the folding support frame is unfolded, and the locking block is arranged in the locking hole of the adjusting piece in a falling mode; the folding key presses and drives the locking piece to tilt upwards and separate from the locking hole, and the adjusting piece slides downwards along the rear supporting tube to drive the folding supporting frame to fold.

The folding key is internally provided with a key spring for elastically pushing the folding key outwards, and the locking block is provided with a locking block spring for elastically pushing the locking block to drop and assemble the locking hole.

The two sides of the seat board are respectively hinged on the two front supporting pipes to form a front hinge point; the adjusting rod is arranged at the rear part of the backboard in an up-and-down moving way, and a pull handle for operating the adjusting rod is further arranged on the adjusting rod.

The backboard rotates forward to the limit relative to the seat board and is blocked by the connecting piece, so that the forward rotation limit of the backboard is formed.

The gear grooves are sequentially arranged on the adjusting piece along the front and rear directions, and the height of the gear groove at the rearmost end is larger than the upward moving height of the adjusting rod; the backboard rotates to the rear limit relative to the seat board, and the adjusting rod is blocked by the gear groove at the rearmost end, so that the backboard rotates to the rear limit.

Compared with the prior art, the invention mainly forms the inverted V-shaped folding frame by the front supporting tube group and the rear supporting tube group of the folding support frame through the top hinging point, the seat plate of the folding seat and the front supporting tube group form hinging rotation through the front hinging point, and the backrest plate and the rear supporting tube group form mutual sliding through the rear sliding point; therefore, the child dinning chair can be unfolded or folded through the mutual matching of the three joint mechanisms of the top hinge point, the front hinge point and the rear sliding point. The improved child dining chair has the advantages of simple, convenient and labor-saving operation, and brings convenience and more selection opportunities for the purchase of consumers, thereby meeting the market demands.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the tray of fig. 1 with the tray removed.

FIG. 3 is a schematic view of the present invention in partial cross-section.

Fig. 4 is a schematic view of the structure of the retracting device in which the adjusting member is released and slides down the rear support tube.

Fig. 5 is a partial sectional view of the folding bracket folded and the adjusting lever fitted in the gear position groove.

Fig. 6 is a schematic view of the structural relationship between the handle and the adjustment lever when the child dinning chair is in the state of fig. 5.

Fig. 7 is a partial cross-sectional view of the folding bracket folded with the adjustment lever being ready to be disengaged from the gear step slot.

FIG. 8 is a schematic view of the structural relationship between the handle and the adjustment lever when the child dinning chair is in the state of FIG. 7.

Fig. 9 is a partial sectional view showing the folding bracket folded and the adjusting lever completely disengaged from the shift slot and the folding seat folded.

Fig. 10 is a schematic view of the structure of the back board in the forward limit rotation position relative to the seat board.

Fig. 11 is a schematic view of the structure of the backboard in the rearward limit rotation position with respect to the seat plate.

Fig. 12 is a partial cross-sectional view of fig. 11.

Fig. 13 is a schematic view of the fully folded configuration of the child seat.

Fig. 14 is a schematic view of the child seat fully folded and the tray removed.

Fig. 15 is a schematic cross-sectional view of the adjustment member locked to the top of the folding bracket by the folding device.

Fig. 16 is a schematic cross-sectional view of the release adjustment of the folding device.

Fig. 17 is a schematic cross-sectional view of the adjustment member sliding down the rear support tube.

Fig. 18 is a schematic sectional view showing a reset state of the retracting device after the release adjustment.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the drawings.

1-18, fold bracket, 11, front support tube set, 111, front support tube, 112, front support leg, 113, step, 12, rear support tube set, 121, rear support tube, 122, rear support leg, 2, fold seat, 21, seat pan, 22, back plate, 23, adjustment lever, 24, pull handle, 25, pull handle spring, 3, retractor, 31, retractor button, 32, key spring, 33, retractor catch, 34, lock block, 35, lock block spring, 4, adjustment member, 41, gear slot, 42, lock hole, 5, dinner plate, 6, armrest member, 7, connector, 8, top hinge point, 9, front hinge point, 10, rear sliding point.

The utility model provides a novel children dining chair that can fold up, relates to a special chair that is used for making things convenient for children to take the meal, and it can be through the folding device 3 on the operation dining chair and with integrative expansion or integrative folding of dining chair, so operation process is simple, convenient, laborsaving, and its structure still includes folding strut 1, folding seat 2 and dinner plate 5 etc..

Wherein the folding bracket 1 includes a front support tube group 11 and a rear support tube group 12; the front support tube group 11 comprises two left and right parallel metal front support tubes 111, plastic front support legs 112 connected to the bottom ends of the two front support tubes, plastic pedals 113 connected to the middle parts of the two front support tubes, and plastic handrail members 6 respectively arranged at the top ends of the two front support tubes 111, wherein the two handrail members extend horizontally and forwards to detachably mount the dinner plate 5.

The rear support tube group 12 comprises two left and right metal rear support tubes 121 which are arranged in parallel, a plastic rear support leg 122 connected to the bottom ends of the two rear support tubes, and plastic connecting pieces 7 respectively arranged at the top ends of the two rear support tubes; the armrest piece 6 and the connecting piece 7 on the same side are mutually hinged to form a top hinge point 8, so that an inverted V-shaped stable supporting structure can be formed when the folding support frame 1 is in an unfolding state, and the front supporting tube group and the rear supporting tube group can be mutually closed and folded when the folding support frame 1 is in a folding state, so that the folding volume is reduced.

Meanwhile, the folding devices 3 are respectively arranged at two sides of the dining chair, each folding device 3 is arranged at the hinge joint of the armrest piece 6 and the connecting piece 7, and the rear supporting tube 121 of the folding bracket 1 is provided with a sliding adjusting piece 4, and the adjusting piece 4 is fixed with the backboard 22 of the folding chair, so that a rear sliding point 10 capable of sliding up and down along the rear supporting tube 121 is formed. Therefore, when the folding bracket 1 is unfolded to be in an inverted V shape, the adjusting piece 4 can be locked at the top of the folding bracket 1 by the folding device 3 so as to stabilize the unfolded use state of the child dinning chair; when the adjusting member 4 is released by the folding device 3 and slides down the rear support tube 121 of the folding bracket 1, the folding bracket 1 can be folded and closed, and the child dinning chair can be folded.

Because the structural design of the folding devices 3 at two sides of the dining chair is completely the same, the embodiment only uses one folding device for detailed description, and comprises a round folding key 31 and a folding buckle 33 with a seesaw structure, wherein the folding key 31 is internally provided with a key spring 32 for elastically pushing the folding key outwards to be exposed, the folding buckle 33 is internally hidden in the folding key 31, one end of the folding buckle is upwarp to contact with the folding key 31, the other end of the folding buckle is provided with a locking piece 34, and the locking piece is provided with a locking piece spring 35 for elastically pushing the locking piece to fall down; therefore, the normal folding button 31 is pushed outwards by the button spring 32, the locking piece 34 is pushed to fall by the locking piece spring 35, when the adjusting piece 4 is positioned at the top of the folding bracket 1, the falling locking piece 34 is assembled in the locking hole 42 of the adjusting piece 4 to lock, so that the folding bracket 1 forms a stable unfolding structure; when the folding button 31 is pressed and kept in a pressed state, the folding buckle 33 makes one end of the locking piece 34 overcome the locking piece spring 35 to be tilted upwards by utilizing a unique seesaw structure, and then the locking piece is separated from the locking hole 42 on the adjusting piece 4, so that the adjusting piece 4 can slide downwards along the rear supporting tube 121, and the folding supporting frame 1 can be driven to be folded by utilizing the dead weight only by lifting the dining chair upwards. And the underside of the locking piece 34 is also provided with a slope so that the locking piece 34 can be quickly assembled into the locking hole 42 through the slope after the adjusting piece 4 slides upwards.

The folding seat 2 is arranged at the top of the folding bracket 1 and consists of a seat board 21 and a backrest board 22, wherein two sides of the seat board 21 are respectively hinged on two front supporting tubes 111 to form a front hinging point 9 for hinging and rotating, and the rear part of the seat board 21 is mutually hinged with the bottom of the backrest board 22; in addition, an adjusting rod 23 is installed at the rear part of the backboard 22, a pull handle 24 for operating the adjusting rod to move up and down is further arranged on the adjusting rod, and a pull handle spring 25 for elastically pushing and pushing the pull handle to move down is arranged on the pull handle, so that the pull handle spring 25 pushes the pull handle 24 to drive the adjusting rod 23 to be always positioned at the lowest position in a normal state.

The structure of the adjusting lever 23 is to assemble a plurality of gear slots 41 sequentially arranged along the front and rear directions on the adjusting member 4, and the height of the gear slot 41 at the rearmost end is greater than the upward moving height of the adjusting lever 23, and the specific structure is as follows: when the child dining chair is unfolded, the adjusting rod 23 is pushed by the tension handle spring 25 to move downwards and can be selectively assembled in the plurality of gear grooves 41 on the adjusting piece 4, so that a plurality of using angle adjustments of the backboard 22 relative to the seat board 21 are realized; when the child dining chair is folded, the pull handle 24 overcomes the pull handle spring 25 and pulls the adjusting rod 23 upwards, the adjusting rod moves upwards to be separated from the gear groove 41, and therefore the folding chair 2 can be folded and closely attached to the folding support frame 1.

The back board 22 is also rotationally adjusted within a certain angle range relative to the seat board 21, namely, when the back board 22 rotates forward relative to the seat board 21, the back board 22 is blocked by the connecting piece 7, so that the forward rotation limit of the back board 22 is formed; the back plate 22 rotates to the rear limit relative to the seat plate 21, the adjusting rod 23 is blocked by the gear groove 41 at the rearmost end, and the rear rotation limit of the back plate 22 is formed. The safety of the entire folding seat 2 is greatly improved by the structural design described above.

The folding operation of the child dining chair is realized mainly through the mutual matching of the three joint mechanisms of the top hinge point 8, the front hinge point 9 and the rear sliding point 10, when the child dining chair is unfolded and used, only the folding support frame 1 is required to be ensured to be in an inverted V shape, the adjusting piece 4 is locked on the folding support frame 1 by the folding device 3, at the moment, the adjusting rod 23 can be operated to be selectively assembled in the plurality of gear grooves 41 according to the actual use requirement, and the use state of the folding chair 2 is completed; when the folding is needed, the folding key 31 is pressed simultaneously to release the adjusting piece 4, so that the adjusting piece 4 can slide downwards along the rear supporting tube 121 only by lifting the dining chair upwards, and then the folding support frame 1 is driven to complete folding under the self weight of the dining chair; then, the adjusting rod 23 is operated to be separated from the gear groove 41 so as to further complete the folding of the folding seat 2, the folded folding seat 2 can be close to the folded folding bracket 1, and after the dinner plate 5 is detached, the whole volume of the dining chair becomes smaller, so that the whole folding process of the dining chair is completed.

The foregoing is merely a specific embodiment of the present invention, and it should be understood by those skilled in the art that any structural design equivalent to the embodiment is included in the scope of the present invention.

Claims

1. A foldable child dining chair, which comprises a folding bracket (1) and a folding seat (2); the folding support comprises a front support tube group (11) and a rear support tube group (12); the folding seat (2) comprises a seat board (21) and a backrest board (22), wherein the rear part of the seat board (21) is hinged with the bottom of the backrest board (22); the front support tube group (11) and the rear support tube group (12) form an inverted V-shaped folding frame through a top hinging point (8); a front hinging point (9) for hinging and rotating is arranged between the seat plate (21) and the front supporting tube group (11); a rear sliding point (10) is arranged between the back board (22) and the rear supporting tube group (12); the folding support (1) is unfolded to be in an inverted V shape, the rear sliding point (10) is locked on the rear support tube group (12), and the child dining chair is unfolded; the folding support frame (1) is closed and folded, the rear sliding point (10) slides along the rear support tube group (12), and the child dining chair is folded; the front support tube group (11) comprises two front support tubes (111) which are arranged left and right in parallel, front support feet (112) connected to the bottom ends of the two front support tubes, pedals (113) connected to the middle parts of the two front support tubes, and handrail parts (6) respectively arranged at the top ends of the two front support tubes (111); the rear support tube group (12) comprises two rear support tubes (121) which are arranged left and right in parallel, rear support feet (122) connected to the bottom ends of the two rear support tubes, and connecting pieces (7) respectively arranged at the top ends of the two rear support tubes (121); the back sliding point (10) is an adjusting piece (4) which is slidably arranged on the back supporting tube group (12), the backrest plate (22) is fixed with the adjusting piece (4), and the child dining chair is characterized in that a folding device (3) is arranged at the hinge joint of the armrest piece (6) and the connecting piece (7), the adjusting piece (4) slides along the back supporting tube (121) and is locked at the top of the folding supporting frame (1) by the folding device (3), and the child dining chair is unfolded; the adjusting piece (4) is released by the folding device (3) and slides downwards along the rear supporting tube (121) of the folding support frame (1), the folding support frame (1) is closed and folded, and the child dining chair is folded.

2. The foldable child dinning chair according to claim 1, characterized in that the folding device (3) comprises a folding button (31) and a folding buckle (33) with a seesaw structure, one end of the folding buckle is upwarped to contact with the folding button (31), and the other end is provided with a locking block (34); the folding support (1) is unfolded, and the locking block (34) is arranged in the locking hole (42) of the adjusting piece (4) in a falling mode; the folding key (31) presses and drives the locking piece (34) to tilt upwards to be separated from the locking hole (42), and the adjusting piece (4) slides downwards along the rear supporting tube (121) to drive the folding support frame (1) to fold.

3. The foldable child dinning chair according to claim 2, characterized in that a key spring (32) for elastically pushing the folding key (31) outwards is arranged in the folding key (31), and a locking piece spring (35) for elastically pushing the locking piece to drop and assemble the locking hole (42) is arranged on the locking piece (34).

4. A collapsible child dinning chair according to claim 1, characterised in that the adjustment member (4) is provided with a plurality of gear grooves (41); the rear part of the backrest plate (22) is provided with an adjusting rod (23) which moves up and down; the child dining chair is unfolded, and the adjusting rod (23) moves downwards to be selectively assembled in a plurality of gear grooves (41) on the adjusting piece (4); the child dining chair is folded, the adjusting rod (23) moves upwards to be separated from the gear groove (41), and the folding chair (2) is closed and folded to be closely attached to the folding support frame (1).

5. A foldable child dinning chair according to claim 1, characterized in that the arm-rest member (6) and the connecting member (7) are hinged to each other to form an inverted V-shaped folding bracket (1); the adjusting piece (4) is slidably arranged on the rear supporting tube (121).

6. A foldable child dinning chair according to claim 4, characterized in that the two sides of the seat plate (21) are hinged to two front support tubes (111) respectively to form a front hinge point (9); the adjusting rod (23) is arranged at the rear part of the backboard (22) in an up-and-down moving way, and a pull handle (24) for operating the adjusting rod (23) is also arranged on the adjusting rod (23).

7. A foldable child dinning chair according to claim 1 characterised in that the back rest (22) is limited in rotation forward relative to the seat (21) and is blocked by the connector (7) thereby forming a limit for the forward rotation of the back rest (22).

8. The foldable child dinning chair according to claim 4, characterized in that the plurality of gear grooves (41) are sequentially arranged on the adjusting member (4) along the front-back direction, and the height of the gear groove (41) at the rearmost end is larger than the upward moving height of the adjusting lever (23); the backboard (22) rotates towards the rear limit relative to the seat board (21), and the adjusting rod (23) is blocked by the gear groove (41) at the rearmost end, so that the backboard (22) rotates backwards to limit.