CN110712672A - Child's seat subassembly - Google Patents

Child's seat subassembly Download PDF

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Publication number
CN110712672A
CN110712672A CN201911004464.9A CN201911004464A CN110712672A CN 110712672 A CN110712672 A CN 110712672A CN 201911004464 A CN201911004464 A CN 201911004464A CN 110712672 A CN110712672 A CN 110712672A
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CN
China
Prior art keywords
joint
unlocking
piece
pivot
inclined plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911004464.9A
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Chinese (zh)
Inventor
张发辉
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Xu Huasheng
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Xu Huasheng
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Publication date
Application filed by Xu Huasheng filed Critical Xu Huasheng
Priority to CN201911004464.9A priority Critical patent/CN110712672A/en
Publication of CN110712672A publication Critical patent/CN110712672A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00Accessories or details specially adapted for children's carriages or perambulators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/10Perambulator bodies; Equipment therefor
    • B62B9/12Perambulator bodies; Equipment therefor involving parts that are adjustable, attachable or detachable

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Seats For Vehicles (AREA)

Abstract

The invention discloses a children's vehicle seat assembly, comprising: the seat plate is provided with a first joint and a pivot, and a first elastic part, a first clutch part, a first unlocking mechanism, a second joint, a linkage unlocking mechanism, a second clutch part, a second elastic part and a third joint are sequentially distributed along the axial direction of the pivot. The child car seat assembly with the structure drives the first clutch piece to be separated from the first joint or the second joint by the aid of the first unlocking mechanism when the child car seat assembly is folded and stored, then the backrest rotates towards the seat plate, in the process, the linkage unlocking mechanism between the second joint and the second clutch piece enables the second clutch piece to be separated from the first joint so that the handrail tube can rotate relative to the seat plate, linkage unlocking of the handrail tube and the backrest is achieved, and folding and storage efficiency and convenience of the child car seat assembly are improved.

Description

Child's seat subassembly
Technical Field
The present invention relates to a child's seat assembly.
Background
A typical child seat assembly includes a seat plate, a backrest, and a seat tube rotatably disposed on the seat plate between the seat plate and the backrest. When folding and stowing the seat assembly, the armrest tube needs to be folded separately to near the seat plate, and then the backrest is folded to near the seat plate, thereby causing a great inconvenience in stowing and stowing.
Secondly, the angle adjustment mechanism of the backrest and the armrest tube of the existing child car seat assembly is complex, and multi-angle gear adjustment cannot be simply realized.
Disclosure of Invention
To overcome the disadvantages of the prior art, it is an object of the present invention to provide a child seat assembly that facilitates folding of a backrest and armrest tubes.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a juvenile seat assembly comprising: the seat board is provided with a first joint, and the first joint is provided with a pivot;
the backrest is provided with a second joint which is rotatably arranged on the first joint through the pivot;
the first clutch piece is movably arranged on the pivot, is positioned between the first joint and the second joint and is used for connecting or separating the second joint with or from the first joint;
the first elastic piece is connected with the first clutch piece and used for driving the first clutch piece to connect the second joint with the first joint;
the first unlocking mechanism is movably arranged on the pivot and can drive the first clutch piece to be separated from the first joint or the second joint so that the backrest can rotate relative to the seat plate;
the armrest tube is provided with a third joint which is rotatably arranged on the pivot and positioned at one side of the second joint;
the second clutch piece is movably arranged on the pivot and used for connecting or separating the third joint with or from the first joint;
the second elastic piece is connected with the second clutch piece and used for driving the second clutch piece to connect the third joint with the first joint;
and the linkage unlocking mechanism is arranged between the second clutch piece and the second joint and can drive the second clutch piece to be separated from the first joint so that the handrail tube can rotate relative to the seat plate.
Preferably, in some embodiments of the present invention, the first unlocking mechanism includes a first unlocking member rotatably disposed on the pivot and a rotation driving mechanism connected to the first unlocking member, the rotation driving mechanism is configured to drive the first unlocking member to rotate around the pivot, the first unlocking member is located between the first clutch member and the second joint, an end surface of the first unlocking member facing the first clutch member abuts against the first clutch member, and a first wedge mechanism capable of driving the first clutch member to approach or separate from the first joint is disposed between an end surface of the first unlocking member facing the second joint and the second joint.
Preferably, in some embodiments of the present invention, the first wedge mechanism includes at least one first arc-shaped groove opened on an end surface of the first unlocking member facing the second joint, one end of the first arc-shaped groove is provided with a first stop plane, the other end of the first arc-shaped groove is provided with a first inclined plane, the end surface of the second joint facing the first clutch member is provided with a first driving block matched with the first arc-shaped groove, two ends of the first driving block are respectively provided with a second stop plane matched with the first stop plane and a second inclined plane matched with the first inclined plane, and the rotational driving mechanism is configured to drive the first stop plane to abut against the second stop plane or drive the first inclined plane to move relative to the second inclined plane.
Preferably, in some embodiments of the invention, the first clutch member has a plurality of first engagement teeth circumferentially distributed about the pivot axis, the first joint is provided with a plurality of first tooth sockets matched with the first engaging teeth, the second joint is provided with a plurality of second tooth sockets matched with the first engaging teeth, one side of the first meshing tooth is provided with a first locking plane, the other side of the first meshing tooth is provided with a first guide inclined plane, a second locking plane matched with the first locking plane and a second guide inclined plane matched with the first guide inclined plane are arranged on the second tooth groove, when the backrest rotates away from the seat plate, the second locking plane is abutted against the first locking plane, when the backrest rotates close to the seat plate, the second guide slope can move relative to the first guide slope so that the second tooth groove is combined with the other first engaging tooth.
Preferably, in some embodiments of the present invention, the first clutch member is provided with a first arc-shaped limiting groove having a center located on an axis of the pivot, and the second joint is provided with a first arc-shaped limiting block matched with the first arc-shaped limiting groove.
Preferably, in some embodiments of the present invention, a plurality of second engaging teeth are distributed on the pivot around the axis thereof, a plurality of third tooth grooves matched with the second engaging teeth are formed on the second clutch, the second elastic member drives the third tooth grooves to engage with the second engaging teeth, the linked unlocking mechanism includes a first unlocking inclined plane disposed on an end surface of the second joint facing the second clutch, the second clutch is provided with a second unlocking inclined plane matched with the first unlocking inclined plane, and when the second joint rotates relative to the second clutch, the first unlocking inclined plane moves upward along the second unlocking inclined plane to separate the third tooth grooves from the second engaging teeth.
Preferably, in some embodiments of the present invention, one side of the second engaging tooth is provided with a third locking plane, the other side of the second engaging tooth is provided with a third guiding inclined plane, the third tooth space is provided with a fourth locking plane matching with the third locking plane and a fourth guiding inclined plane matching with the third guiding inclined plane, the fourth locking plane abuts against the third locking plane when the handle pipe rotates towards the seat plate, and the fourth guiding inclined plane can move upwards along the third guiding inclined plane and enables the third tooth space to be combined with another second engaging tooth when the handle pipe rotates away from the seat plate.
Preferably, in some embodiments of the present invention, a second arc-shaped limiting groove with a center located on an axis of the pivot is disposed on the second clutch member, and a second arc-shaped limiting block matched with the second arc-shaped limiting groove is disposed on the pivot.
Preferably, in some embodiments of the present invention, the second clutch member is provided with a plurality of third engaging teeth on the profile, and the third joint is provided with a fourth tooth space matched with the third engaging teeth, and the third engaging teeth can reciprocate along the depth direction of the fourth tooth space and keep the third engaging teeth and the fourth tooth space coupled.
Preferably, in some embodiments of the present invention, the seat plate is connected to a foot tube through a joint device.
The invention has the beneficial effects that: the child car seat assembly with the structure drives the first clutch piece to be separated from the first joint or the second joint by the aid of the first unlocking mechanism when the child car seat assembly is folded and stored, then the backrest rotates towards the seat plate, in the process, the linkage unlocking mechanism between the second joint and the second clutch piece enables the second clutch piece to be separated from the first joint to enable the handrail tube to rotate relative to the seat plate, linkage unlocking of the handrail tube and the backrest is achieved, and convenience of folding and storage of the child car seat assembly is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic exterior view of one embodiment of a juvenile seat assembly of the present invention;
FIG. 2 is a schematic structural view of the first clutch, pivot shaft, first unlocking member, second joint, second clutch and third joint of FIG. 1 in an exploded condition;
FIG. 3 is an enlarged partial schematic view of section A of FIG. 2;
FIG. 4 is a schematic view from another perspective of the overall structure of FIG. 3;
FIG. 5 is a schematic view of the internal structure of FIG. 1 at the pivot joint of the seat pan, backrest and armrest tubes;
FIG. 6 is a schematic view of the structure of the pivot;
FIG. 7 is a schematic structural view of a second joint;
fig. 8 is a schematic view of the structure of the first unlocking member.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
Referring to fig. 1 to 4, a child car seat assembly includes: the chair comprises a chair plate 10, wherein a first joint 11 is arranged on the chair plate 10, a pivot 8 is arranged on the first joint 11, and the pivot 8 can be fixedly connected with the first joint 11 and also can be used as a part which is detachably arranged on the first joint 11; the backrest 20 is provided with a second joint 21, and the second joint 21 is rotatably arranged on the first joint 11 through the pivot 8; the first clutch 4 is movably arranged on the pivot 8 and positioned between the first joint 11 and the second joint 21 and used for connecting or separating the second joint 21 with or from the first joint 11; a first elastic member (not shown in the drawings) is connected to the first clutch 4 for driving the first clutch 4 to connect the second joint 21 with the first joint 11, in this embodiment, the first elastic member is a compression spring, and the compression spring can drive the first clutch 4 to move towards the second joint 21 and make the second joint 21 combine with the first joint 11; a first unlocking mechanism movably arranged on the pivot shaft 8 and capable of driving the first clutch 4 to be separated from the first joint 11 or the second joint 21 so that the backrest 20 can rotate relative to the seat plate 10; a third joint 31 is arranged on the handrail tube 30, and the third joint 31 is rotatably arranged on the pivot 8 and is positioned at one side of the second joint 21; the second clutch piece 5 is movably arranged on the pivot 8 and is used for connecting or separating the third joint 31 with or from the first joint 11; a second elastic member (not shown in the drawings) connected to the second clutch 5 for driving the second clutch 5 to connect the third joint 31 with the first joint 11, in this embodiment, the second elastic member is a compression spring, and the compression spring can drive the second clutch 5 to move toward the third joint 31 and make the third joint 31 combine with the pivot 8 on the first joint 11; and the linkage unlocking mechanism is arranged between the second clutch piece 5 and the second joint 21 and can drive the second clutch piece 5 to be separated from the first joint 11 so that the handrail tube 30 can rotate relative to the seat plate 10. When the child car seat assembly with the structure is folded and stored, the first unlocking mechanism is used for driving the first clutch piece 4 to be separated from the first joint 11 or the second joint 21, then the backrest 20 rotates towards the direction of the seat plate 10, and in the process, the linkage unlocking mechanism between the second joint 21 and the second clutch piece 5 enables the second clutch piece 5 to be separated from the first joint 11 so that the handrail tube 30 can rotate relative to the seat plate 10, so that linkage unlocking of the handrail tube 30 and the backrest 20 is realized, and the folding and storing convenience of the child car seat assembly is improved.
Referring to fig. 3 and 4, the first unlocking mechanism includes a first unlocking member 61 rotatably disposed on the pivot 8 and a rotation driving mechanism connected to the first unlocking member 61, the rotation driving mechanism is configured to drive the first unlocking member 61 to rotate around the pivot 8, the first unlocking member 61 is located between the first clutch member 4 and the second joint 21, an end surface of the first unlocking member 61 facing the first clutch member 4 abuts against the first clutch member 4, and a first wedge mechanism capable of driving the first clutch member 4 to approach or separate from the first joint 11 is disposed between an end surface of the first unlocking member 61 facing the second joint 21 and the second joint 21. The rotation driving mechanism comprises a steel wire rope connected with the first unlocking piece 61, a rotation piece connected with the other end of the steel wire rope is arranged on the backrest 20, a torsion spring used for resetting is arranged on the rotation piece, when the rotation piece rotates, the steel wire rope drives the first unlocking piece 61 to rotate relative to the second joint 21, and the first wedge-shaped mechanism forces the first unlocking piece 61 to push the first clutch piece 4 to move towards the first joint 11, so that unlocking between the backrest 20 and the seat plate 10 is realized. The rotation driving mechanism is a common technical means for those skilled in the art, and will not be further described herein.
Referring to fig. 3, 4, 7, and 8, preferably, the first wedge mechanism includes at least one first arc-shaped groove 621 opened on an end surface of the first unlocking member 61 facing the second joint 21, one end of the first arc-shaped groove 621 is provided with a first stop plane 6211, the other end of the first arc-shaped groove 621 is provided with a first inclined plane 6212, an end surface of the second joint 21 facing the first clutch member 4 is provided with a first driving block 622 matched with the first arc-shaped groove 621, two ends of the first driving block 622 are respectively provided with a second stop plane 6221 matched with the first stop plane 6211 and a second inclined plane 6222 matched with the first inclined plane 6212, and the rotational driving mechanism is configured to drive the first stop plane 6211 to abut against the second stop plane 6221 or drive the first inclined plane 6212 to move relative to the second inclined plane 6222.
Preferably, a plurality of first engaging teeth 41 are distributed on the first clutch member 4 around the circumference of the pivot shaft 8, a plurality of first tooth grooves 111 matched with the first engaging teeth 41 are arranged on the first joint 11, a plurality of second tooth grooves 211 matched with the first engaging teeth 41 are arranged on the second joint 21, in a working state, the first engaging teeth 41 on the first clutch member 4 are simultaneously engaged with the first tooth grooves 111 and the second tooth grooves 211 under the action of a first elastic member, when the first unlocking member 61 rotates, the first unlocking member 61 can push the first clutch member 4 to move towards the first joint 11, the first engaging teeth 41 are separated from the second tooth grooves 211 and only combined with the first tooth grooves 111, a first locking plane 411 is arranged on one side of the first engaging teeth 41, a first guiding inclined plane 412 is arranged on the other side of the first engaging teeth 41, and a second locking plane 2111 matched with the first locking plane 411 and a second guiding inclined plane matched with the first guiding inclined plane 412 are arranged on the second tooth grooves 211 And a slanted surface 2112, wherein when the backrest 20 rotates away from the seat plate 10, the second locking plane 2111 abuts against the first locking plane 411 to fix the backrest 20 relative to the seat plate 10, and when the backrest 20 rotates close to the seat plate 10, the second guide slanted surface 2112 can move relative to the first guide slanted surface 412 to engage the second tooth groove 211 with the other first engaging tooth 41 to adjust the angle between the backrest 20 and the seat plate 10. In the case where the first unlocking mechanism is not operated, the backrest 20 can be rotated only in a direction close to the seat plate 10 to adjust the angle between the backrest 20 and the seat plate 10, and cannot be rotated in a direction away from the seat plate 10 to adjust the angle between the backrest 20 and the seat plate 10.
Referring to fig. 3 and 4, preferably, a first arc-shaped limiting groove 42 with a center located on the axis of the pivot 8 is disposed on the first clutch member 4, a first arc-shaped limiting block 212 matched with the first arc-shaped limiting groove 42 is disposed on the second joint 21, and the first arc-shaped limiting groove 42 and the first arc-shaped limiting block 212 are matched to limit the range of an included angle between the backrest 20 and the seat plate 10 in a use state.
Referring to fig. 6, preferably, a plurality of second engaging teeth 81 are distributed on the pivot 8 around the axis thereof, a plurality of third tooth grooves 51 matched with the second engaging teeth 81 are arranged on the second clutch member 5, the second elastic member drives the third tooth grooves 51 to be engaged with the second engaging teeth 81, referring to fig. 3 and 4, the linked unlocking mechanism includes a first unlocking inclined surface 71 arranged on the end surface of the second joint 21 facing the second clutch member 5, the second clutch member 5 is provided with a second unlocking inclined surface 72 matched with the first unlocking inclined surface 71, and when the second joint 21 rotates relative to the second clutch member 5, the first unlocking inclined surface 71 moves upward along the second unlocking inclined surface 72 to separate the third tooth grooves 51 from the second engaging teeth 81. With reference to fig. 3 and 4, wherein said second clutch member 5 is provided with a plurality of third meshing teeth 53 on its profile, a fourth tooth socket 311 matched with the third engaging tooth 53 is arranged on the third joint 31, the third engaging tooth 53 is reciprocally movable in the depth direction of the fourth tooth groove 311 and keeps the third engaging tooth 53 coupled with the fourth tooth groove 311, when the linkage unlocking mechanism is not operated, the second clutch piece 5 realizes the connection of the third joint 31 and the pivot 8 through the second clutch piece 5 under the action of the second elastic piece and by the matching of the third tooth groove 51 and the second meshing teeth 81, when the second joint 21 rotates relative to the third joint 31 in the direction of the seat plate 10, the first unlocking inclined surface 71 can be linked with the second unlocking inclined surface 72 to move the second clutch 5 in the direction of the third joint 31, so that the third joint 31 is separated from the connection of the pivot 8.
Referring to fig. 4 and 6, preferably, a third locking plane 811 is provided at one side of the second engaging tooth 81, a third guiding inclined plane 812 is provided at the other side of the second engaging tooth 81, a fourth locking plane 511 matched with the third locking plane 811 and a fourth guiding inclined plane 512 matched with the third guiding inclined plane 812 are provided on the third tooth groove 51, the fourth locking plane 511 abuts against the third locking plane 811 when the handle pipe 30 is rotated toward the seat plate 10, and the fourth guiding inclined plane 512 can move upward along the third guiding inclined plane 812 and combine the third tooth groove 51 with another second engaging tooth 81 when the handle pipe 30 is rotated away from the seat plate 10. Further, the angle between the handle pipe 30 and the seat plate 10 is adjusted, and in a state where the interlocking unlocking mechanism is not operated, since the force applied to the handle pipe 30 is pushed forward when the interlocking unlocking mechanism is used, the handle pipe 30 can only be rotated in a direction away from the seat plate 10 to adjust the angle between the handle pipe 30 and the seat plate 10, but cannot be rotated in a direction close to the seat plate 10 to adjust the angle between the handle pipe 30 and the seat plate 10.
Referring to fig. 4 and 6, preferably, a second arc-shaped limiting groove 52 with a center located on the axis of the pivot 8 is disposed on the second clutch 5, a second arc-shaped limiting block 82 matched with the second arc-shaped limiting groove 52 is disposed on the pivot 8, and the matching between the second arc-shaped limiting groove 52 and the second arc-shaped limiting block 82 is used to limit the range of the included angle between the handrail tube 30 and the seat plate 10 in the use state.
Preferably, a foot tube 9 is connected to the seat plate 10 through a joint device, and the foot tube 9 is used for supporting the legs of the child and improving the riding comfort of the child seat assembly.
The above examples are merely preferred embodiments of the present invention, and other embodiments of the present invention are possible, such as a reasonable combination of the technical solutions described in the examples. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope set forth in the claims of the present application.

Claims (10)

1. A juvenile seat assembly, comprising:
the chair comprises a seat plate (10), wherein a first joint (11) is arranged on the seat plate (10), and a pivot (8) is arranged on the first joint (11);
the backrest (20) is provided with a second joint (21), and the second joint (21) is rotatably arranged on the first joint (11) through the pivot (8);
the first clutch piece (4) is movably arranged on the pivot (8), is positioned between the first joint (11) and the second joint (21) and is used for connecting or separating the second joint (21) with or from the first joint (11);
the first elastic piece is connected with the first clutch piece (4) and used for driving the first clutch piece (4) to connect the second joint (21) with the first joint (11);
the first unlocking mechanism is movably arranged on the pivot (8) and can drive the first clutch piece (4) to be separated from the first joint (11) or the first clutch piece (4) to be separated from the second joint (21) so that the backrest (20) can rotate relative to the seat plate (10);
the handrail tube (30), the handrail tube (30) is equipped with the third joint (31), the third joint (31) is rotatably arranged on the pivot (8) and is positioned at one side of the second joint (21);
the second clutch piece (5) is movably arranged on the pivot (8) and is used for connecting or separating the third joint (31) with or from the first joint (11);
the second elastic piece is connected with the second clutch piece (5) and used for driving the second clutch piece (5) to connect the third joint (31) with the first joint (11);
and the linkage unlocking mechanism is arranged between the second clutch piece (5) and the second joint (21) and can drive the second clutch piece (5) to be separated from the first joint (11) so that the handrail tube (30) can rotate relative to the seat plate (10).
2. A juvenile seat assembly according to claim 1, wherein:
the first unlocking mechanism comprises a first unlocking piece (61) and a rotation driving mechanism, wherein the first unlocking piece (61) is rotatably arranged on the pivot (8), the rotation driving mechanism is connected with the first unlocking piece (61), the rotation driving mechanism is used for driving the first unlocking piece (61) to rotate around the pivot (8), the first unlocking piece (61) is positioned between the first clutch piece (4) and the second joint (21), the end face, facing the first clutch piece (4), of the first unlocking piece (61) is abutted to the first clutch piece (4), and a first wedge-shaped mechanism capable of driving the first clutch piece (4) to be close to or far away from the first joint (11) is arranged between the end face, facing the second joint (21), of the first unlocking piece (61) and the second joint (21).
3. A juvenile seat assembly according to claim 2, wherein:
the first wedge-shaped mechanism comprises at least one first arc-shaped groove (621) arranged on the end face, facing the second joint (21), of the first unlocking piece (61), one end of the first arc-shaped groove (621) is provided with a first stop plane (6211), the other end of the first arc-shaped groove (621) is provided with a first inclined plane (6212), a first driving block (622) matched with the first arc-shaped groove (621) is arranged on the end surface of the second joint (21) facing the first clutch piece (4), a second stop plane (6221) matched with the first stop plane (6211) and a second inclined plane (6222) matched with the first inclined plane (6212) are respectively arranged at the two ends of the first driving block (622), the rotary driving mechanism is used for driving the first stop plane (6211) to abut against the second stop plane (6221) or driving the first inclined plane (6212) and the second inclined plane (6222) to move relatively.
4. A juvenile seat assembly according to claim 1, 2 or 3, wherein:
a plurality of first engaging teeth (41) are distributed on the first clutch piece (4) around the circumference of the pivot (8), a plurality of first tooth grooves (111) matched with the first engaging teeth (41) are arranged on the first joint (11), a plurality of second tooth grooves (211) matched with the first engaging teeth (41) are arranged on the second joint (21), a first locking plane (411) is arranged on one side of the first engaging teeth (41), a first guide inclined plane (412) is arranged on the other side of the first engaging teeth (41), a second locking plane (2111) matched with the first locking plane (411) and a second guide inclined plane (2112) matched with the first guide inclined plane (412) are arranged on the second tooth groove (211), and when the backrest (20) deviates from the seat plate (10) to rotate, the second locking plane (2111) is abutted to the first locking plane (411), when the backrest (20) is rotated close to the seat plate (10), the second guide slope (2112) can move relative to the first guide slope (412) to engage the second tooth groove (211) with another first engaging tooth (41).
5. A juvenile seat assembly according to claim 4, wherein:
the first clutch piece (4) is provided with a first arc-shaped limiting groove (42) with the circle center positioned on the axis of the pivot (8), and the second joint (21) is provided with a first arc-shaped limiting block (212) matched with the first arc-shaped limiting groove (42).
6. A juvenile seat assembly according to claim 1, 2 or 3, wherein:
a plurality of second meshing teeth (81) are distributed on the pivot (8) around the axis of the pivot, a plurality of third tooth grooves (51) matched with the second meshing teeth (81) are formed in the second clutch piece (5), the second elastic piece drives the third tooth grooves (51) to be meshed with the second meshing teeth (81), the linkage unlocking mechanism comprises a first unlocking inclined plane (71) arranged on the end face, facing the second clutch piece (5), of the second joint (21), the second unlocking inclined plane (72) matched with the first unlocking inclined plane (71) is arranged on the second clutch piece (5), and when the second joint (21) rotates relative to the second clutch piece (5), the first unlocking inclined plane (71) moves upwards along the second unlocking inclined plane (72) to enable the third tooth grooves (51) to be separated from the second meshing teeth (81).
7. A juvenile seat assembly according to claim 6, wherein:
one side of second meshing tooth (81) is equipped with third locking plane (811), and the opposite side of second meshing tooth (81) is equipped with third direction inclined plane (812), be equipped with on third tooth's socket (51) with third locking plane (811) assorted fourth locking plane (511) and with third direction inclined plane (812) assorted fourth direction inclined plane (512), when handrail pipe (30) rotated towards bedplate (10), fourth locking plane (511) and third locking plane (811) looks butt, when handrail pipe (30) deviated from bedplate (10) and rotated, fourth direction inclined plane (512) can be along third direction inclined plane (812) upward movement and make third tooth's socket (51) combine together with another second meshing tooth (81).
8. A juvenile seat assembly according to claim 7, wherein:
a second arc-shaped limiting groove (52) with the circle center positioned on the axis of the pivot (8) is arranged on the second clutch piece (5), and a second arc-shaped limiting block (82) matched with the second arc-shaped limiting groove (52) is arranged on the pivot (8).
9. A juvenile seat assembly according to claim 1, wherein:
a plurality of third engaging teeth (53) are arranged on the profile of the second clutch piece (5), a fourth tooth groove (311) matched with the third engaging teeth (53) is arranged on the third joint (31), and the third engaging teeth (53) can reciprocate along the depth direction of the fourth tooth groove (311) and keep the third engaging teeth (53) connected with the fourth tooth groove (311).
10. A juvenile seat assembly according to claim 1, 2 or 3, wherein:
the seat board (10) is connected with a pedal pipe (9) through a joint device.
CN201911004464.9A 2019-10-22 2019-10-22 Child's seat subassembly Pending CN110712672A (en)

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Application Number Priority Date Filing Date Title
CN201911004464.9A CN110712672A (en) 2019-10-22 2019-10-22 Child's seat subassembly

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Application Number Priority Date Filing Date Title
CN201911004464.9A CN110712672A (en) 2019-10-22 2019-10-22 Child's seat subassembly

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CN110712672A true CN110712672A (en) 2020-01-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113304526A (en) * 2021-06-10 2021-08-27 中山市柠檬环境科技有限公司 Filter element seat and filter element
WO2024002121A1 (en) * 2022-06-30 2024-01-04 浙江联宜电机有限公司 Backrest folding structure

Citations (5)

* Cited by examiner, † Cited by third party
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