CN107117199B - Child cart seat with armrests capable of being folded in linkage mode - Google Patents
Child cart seat with armrests capable of being folded in linkage mode Download PDFInfo
- Publication number
- CN107117199B CN107117199B CN201710302137.6A CN201710302137A CN107117199B CN 107117199 B CN107117199 B CN 107117199B CN 201710302137 A CN201710302137 A CN 201710302137A CN 107117199 B CN107117199 B CN 107117199B
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- seat
- groove
- backrest
- spring
- rotating seat
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- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 210000003781 tooth socket Anatomy 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 3
- 244000309466 calf Species 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The invention discloses a child cart seat with armrests capable of being folded in a linkage mode, which comprises a backrest, a seat part and armrests, wherein the lower ends of the left side and the right side of the backrest are respectively provided with a backrest rotating seat, the rear ends of the left side and the right side of the seat part are respectively provided with a seat rotating seat, the rear ends of the left side and the right side of the armrests are respectively provided with an armrests rotating seat, the backrest rotating seats, the seat rotating seats and the armrests rotating seats on each side of the left side and the right side are sequentially pivoted with each other, and the seat also comprises a left armrest and a right armrest linkage folding mechanism.
Description
Technical Field
The invention relates to a child stroller, in particular to a child stroller seat with armrests capable of being folded in a linkage mode.
Background
The child stroller generally includes a seat for a child to sit on, the seat including a seat portion and a backrest disposed at a rear end of the seat portion, and armrests disposed on the seat portion to prevent the child from slipping out. In the prior art, when folding the seat and the backrest, the armrests are generally detached to avoid interference, then folding operation is performed, and finally, the individual armrests, the seat and the backrest are put together for packaging. The arrangement is not only troublesome in folding operation, but also large in volume of folded seat materials.
Disclosure of Invention
The invention aims to overcome the defects and provide the child car seat with the armrests capable of being folded in a linkage mode.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the child cart seat with armrests capable of being folded in a linkage mode comprises a backrest, a seat part and armrests, wherein lower ends of the left side and the right side of the backrest are respectively provided with a backrest rotating seat, rear ends of the left side and the right side of the seat part are respectively provided with a seat part rotating seat, rear ends of the left side and the right side of the armrests are respectively provided with an armrests rotating seat, the seat part rotating seats on each side of the left side and the right side are arranged between the armrests rotating seats and the backrest rotating seats, the seat part rotating seats and the seat part rotating seats are mutually pivoted, a locking mechanism used for limiting relative rotation of the backrest rotating seats and the seat part rotating seats is arranged between the backrest rotating seats and the seat part rotating seats, the seat part also comprises a left armrest linkage folding mechanism and a right armrest linkage folding mechanism, each armrest linkage folding mechanism comprises an arc unlocking groove arranged on one side of the backrest rotating seat towards the seat part rotating seat, a left locking hole extending towards the left side and the right side of the seat part rotating seat part, a locking pin, a second spring and a third spring, the arc unlocking groove comprises a first section groove with consistent depth and a second section groove which extends obliquely from the rear end of the first section groove towards the end face of the back rotating seat towards the seat rotating seat, the perforation comprises a first section hole towards the back rotating seat and a second section hole towards the armrest rotating seat, the diameter of the first section hole is larger than that of the second section hole, the unlocking pin comprises a pin body and a circle of flange arranged on the periphery of the pin body, one end of the unlocking pin is inserted into the arc unlocking groove, the other end of the unlocking pin is inserted into the perforation, the second spring is sleeved outside the other end of the unlocking pin, one end of the second spring is propped against the flange of the unlocking pin, the other end is abutted against the bottom wall of the first section of hole of the perforation; the third spring is arranged in the locking hole, one end of the locking pin is inserted into the locking hole and abuts against the third spring, and under the action of the third spring, the other end of the locking pin is inserted into the through hole and abuts against the unlocking pin.
The handrail rotating seat is characterized in that a handrail resetting device is arranged between the handrail rotating seat and the seat rotating seat, the handrail resetting device comprises an arc-shaped groove arranged on one side end face of the handrail rotating seat, an inserting hole arranged on one side end face of the seat rotating seat, a limiting pin and a fourth spring, the arc-shaped groove comprises a pressure spring groove and a travel groove arranged at the rear end of the pressure spring groove, the depth of the travel groove is deeper than that of the pressure spring groove, one end of the limiting pin is inserted into the inserting hole, the other end of the limiting pin is inserted into the travel groove, the fourth spring is arranged in the pressure spring groove, one end of the fourth spring abuts against the limiting pin, and the other end of the fourth spring abuts against the groove wall of the pressure spring groove, which is far away from one end of the travel groove.
The locking mechanism comprises a first tooth groove arranged on one side end face of the backrest rotating seat facing the seat rotating seat, a second tooth groove arranged on the other side end face of the seat rotating seat, a gear and a fourth spring, one end of the fourth spring is propped against the gear, the other end of the fourth spring is propped against the bottom wall of the second tooth groove, and under the action of the fourth spring, the gear is meshed with the first tooth groove and the second tooth groove at the same time, so that the backrest rotating seat and the seat rotating seat are in a locking state, and cannot rotate relatively, namely, the backrest and the seat cannot rotate relatively.
The thickness of one tooth of the gear is larger than that of other teeth, the depth of a plurality of tooth grooves of the first tooth groove is larger than that of other tooth grooves, and correspondingly, the depth of a plurality of tooth grooves of the second tooth groove is also larger than that of other tooth grooves.
The seat also comprises a left locking mechanism and a right locking mechanism which are used for locking the locking mechanism, wherein the locking mechanism comprises a rotating piece, a fifth spring, a pushing piece, a steel wire, a driving mechanism and a locking mechanism, wherein the lower end of the steel wire is connected with the rotating piece and used for pulling the rotating piece to rotate, and the driving mechanism is arranged on the backrest and connected with the upper end of the steel wire and used for pulling the steel wire upwards; the back rotating seat is provided with a concave annular groove at the bottom wall of the first tooth groove, a containing groove is arranged in the middle of the outer side of the back rotating seat, a through hole communicated with the annular groove is formed in the bottom wall of the containing groove, and an arc-shaped spring groove is formed in the outer side of the containing groove; the rotating piece comprises a body, a boss extending from the body to the direction of the backrest rotating seat and a 7-shaped spring seat extending upwards from the body, and the end face of the boss is provided with an inclined plane; the body of the rotating piece is arranged in the accommodating groove, the boss penetrates through the through hole, the upper end of the 7-shaped spring seat is arranged in the arc-shaped spring groove, the fifth spring is arranged in the arc-shaped spring groove, one end of the fifth spring is abutted against the 7-shaped spring seat, and the other end of the fifth spring is abutted against the groove wall of one side, far away from the 7-shaped spring seat, of the arc-shaped spring groove; the pushing piece can be arranged in the annular groove in a left-right moving mode, one end of the pushing piece abuts against the gear, an inclined surface is arranged at the other end of the pushing piece, and the inclined surface of the pushing piece is matched with the inclined surface of the rotating piece.
The driving mechanism is only provided with one, and the upper ends of the steel wires of the locking mechanisms at the left side and the right side are connected with the driving mechanism.
The backrest is arranged as an inverted U-shaped tube and comprises a left backrest tube, a right backrest tube and a transverse tube connected to the upper ends of the left backrest tube and the right backrest tube, the left backrest rotating seat and the right backrest rotating seat are respectively arranged at the lower ends of the left backrest tube and the right backrest tube, a second transverse tube is further connected between the upper sides of the left backrest tube and the right backrest tube, the driving mechanism is connected to the second transverse tube, or the backrest is arranged as a plate, and the driving mechanism is arranged at the rear side of the plate backrest.
The seat is plate-shaped, and the left seat rotating seat and the right seat rotating seat are respectively arranged in an upward extending way from the rear ends of the left side and the right side of the plate-shaped seat; or the seat part is arranged into a left seat rod and a right seat rod, seat cloth is sleeved on the seat rods, and the seat part rotating seat is arranged at the rear end of the seat rods.
The handrail is U-shaped, and comprises a left handrail, a right handrail and a front handrail connected to the front ends of the left handrail and the right handrail, and the left handrail rotating seat and the right handrail rotating seat are respectively integrally formed at the rear ends of the left handrail and the right handrail.
The backrest is also connected with a roof strip, and the lower ends of the left side and the right side of the roof strip are respectively pivoted on the left side and the right side of the backrest in an angle-adjustable manner; the front end of the seat is connected with a U-shaped shank rest, and the rear ends of the left side and the right side of the U-shaped shank rest are respectively connected to the left side and the right side of the front end of the seat in a relatively angle-adjustable manner.
The beneficial effects of the invention are as follows: because the armrest linkage folding mechanism is arranged, when the seat is folded, the armrest does not need to be disassembled, and can be folded and rotated along with the rotation of the backrest until the backrest, the armrest and the seat are folded together, so that the seat is convenient to fold and operate, and the folding volume is small.
Drawings
FIG. 1 is a perspective view of a child car seat with armrests capable of being retracted in a linked manner;
FIG. 2 is an enlarged schematic view of an explosion according to portion A of FIG. 1;
FIG. 3 is an enlarged schematic view of another angular explosion according to section A of FIG. 1;
FIG. 4 is an enlarged schematic cross-sectional view of a armrest-coupled stowing mechanism of a child car seat with armrests coupled stowable in accordance with the present invention;
FIG. 5 is an enlarged schematic view of a combination of a back swivel and an unlocking pin of a child car seat with armrests capable of being stowed in a ganged manner;
FIG. 6 is an enlarged schematic view of a combination of a armrest swivel mount and a stop pin of a child car seat with armrests capable of being stowed in a ganged manner in accordance with the present invention;
FIG. 7 is an enlarged schematic cross-sectional view of a locking mechanism of the child car seat of the present invention with the armrests being in a gangable configuration;
FIG. 8 is an enlarged schematic view of a combination of a backrest swivel and a swivel member of a child car seat with armrests in a gangable configuration in accordance with the present invention;
FIG. 9 is an enlarged schematic view of a combination of a rotating member and a pushing member of a child car seat with armrests capable of being retracted in a linked manner according to the present invention;
fig. 10 is a schematic view of a child car seat with armrests capable of being folded in a linkage manner.
Detailed Description
As shown in fig. 1, 2, 3, 4, 5 and 6, the child car seat with armrests capable of being folded in a linkage manner comprises a backrest 1, a seat 2 and armrests 3, wherein lower ends of the left side and the right side of the backrest 1 are respectively provided with a backrest rotating seat 11, rear ends of the left side and the right side of the seat 2 are respectively provided with a seat rotating seat 21, rear ends of the left side and the right side of the armrests are respectively provided with an armrests rotating seat 31, the seat rotating seat 21 of each side of the left side and the right side is arranged between the armrests rotating seats 31 and the backrest rotating seats 11, the seat rotating seats 21 and the armrests rotating seats 31 are pivoted with each other, a locking mechanism for limiting relative rotation of the backrest rotating seats 11 and the seat rotating seats 21 is arranged between the backrest rotating seats 11 and the seat rotating seats 21, the seat also comprises a left armrest and right armrest folding mechanism in a linkage manner, each armrest linkage folding mechanism comprises an arc unlocking groove 111 arranged on one side of the backrest rotating seat 11 towards the seat rotating seat 21, a through hole 211 which is arranged on the seat rotating seat 21 and extends leftwards and rightwards, a locking hole 311 which is arranged on one side of the armrest rotating seat 31 towards the seat rotating seat 21 and extends leftwards and rightwards, an unlocking pin 51, a locking pin 52, a first spring 53 and a second spring 54, wherein the arc unlocking groove 111 comprises a first section groove 112 with consistent depth and a second section groove 113 which extends obliquely from the rear end of the first section groove 112 towards the end face of the backrest rotating seat 11 towards the seat rotating seat 21, the through hole 211 comprises a first section hole 212 towards the backrest rotating seat 11 and a second section hole 213 towards the armrest rotating seat 31, the diameter of the first section hole 212 is larger than that of the second section hole 213, the unlocking pin 51 comprises a pin body 511 and a circle of flange 512 arranged on the periphery of the pin body 511, one end of the unlocking pin 51 is inserted into the arc unlocking groove 111, the other end is inserted into the through hole 211, the first spring 53 is sleeved outside the other end of the unlocking pin 51, one end of the first spring 53 is abutted against the flange 512 of the unlocking pin 51, and the other end is abutted against the bottom wall of the first section hole 212 of the through hole 211; the second spring 54 is disposed in the locking hole 311, one end of the locking pin 52 is inserted into the locking hole 311 and abuts against the second spring 54, and the other end of the locking pin 52 is inserted into the through hole 211 and abuts against the unlocking pin 51 under the action of the second spring 54.
The handrail resetting device comprises an arc-shaped groove 312 arranged on one side end face of the handrail rotating seat 31, an insertion hole 214 arranged on one side end face of the handrail rotating seat 31, which faces the seat rotating seat 21, a limiting pin 71 and a third spring 72, wherein the arc-shaped groove 312 comprises a pressure spring groove 313 and a travel groove 314 arranged on the rear end of the pressure spring groove 313, the depth of the travel groove 314 is deeper than that of the pressure spring groove 313, one end of the limiting pin 71 is inserted into the insertion hole 214, the other end of the limiting pin is inserted into the travel groove 314, the third spring 72 is arranged in the pressure spring groove 313, one end of the third spring 72 abuts against the limiting pin 71, and the other end of the third spring 72 abuts against the groove wall of one end, far away from the travel groove 314, of the pressure spring groove 313.
As shown in fig. 2, 3, 7, 8 and 9, in this embodiment, the locking mechanism includes a first tooth groove 114 provided on an end surface of the backrest rotation seat 11 facing the seat rotation seat 21, a second tooth groove 215 provided on an opposite end surface of the seat rotation seat 21, a gear 41, and a fourth spring 42, one end of the fourth spring 42 abuts against the gear 41, the other end abuts against a bottom wall of the second tooth groove 215, and under the action of the fourth spring 42, the gear 41 is engaged with the first tooth groove 114 and the second tooth groove 215 at the same time, so that the backrest rotation seat 11 and the seat rotation seat 21 are in a locked state, and cannot rotate relatively, that is, the backrest 1 and the seat 2 cannot rotate relatively.
Preferably, one of the teeth 411 of the gear 41 has a greater thickness than the other teeth, and the first tooth slot 114 has a greater depth than the other tooth slots, and the second tooth slot 215 has a greater depth than the other tooth slots.
In this embodiment, the seat further comprises a left locking mechanism and a right locking mechanism for locking the locking mechanism, the locking mechanism comprises a rotating member 61, a fifth spring 62, a pushing member 63, a steel wire (not shown) with the lower end connected with the rotating member 61 and used for pulling the rotating member 61 to rotate, and a driving mechanism 64 arranged on the backrest 1 and connected with the upper end of the steel wire and used for pulling the steel wire upwards; the bottom wall of the first tooth socket 114 of the backrest rotary seat 11 is provided with a recessed annular groove 115, the middle of the outer side of the backrest rotary seat 11 is provided with an accommodating groove 116, the bottom wall of the accommodating groove 116 is provided with a through hole 117 communicated with the annular groove 115, and the outer side of the accommodating groove 116 is provided with an arc-shaped spring groove 118; the rotating member 61 includes a body 611, a boss 612 extending from the body 611 in a direction of backing against the rotating seat 11, and a 7-shaped spring seat 613 extending upward from the body 611, wherein an end surface of the boss 612 is provided with an inclined surface 6120; the body 611 of the rotating member 61 is placed in the accommodating groove 116, the boss 612 passes through the through hole 117, the upper end of the 7-shaped spring seat 613 is placed in the arc-shaped spring groove 118, the fifth spring 62 is placed in the arc-shaped spring groove 118, one end of the fifth spring 62 abuts against the 7-shaped spring seat 613, and the other end of the fifth spring abuts against the groove wall of the arc-shaped spring groove 118 on the side far away from the 7-shaped spring seat 613; the pushing member 63 is disposed in the annular groove 115 in a manner of being movable left and right, one end of the pushing member 63 abuts against the gear 41, the other end is provided with a bevel 631, and the bevel 631 of the pushing member 63 is matched with the bevel 6120 of the rotating member 61.
Preferably, the pushing member 63 is recessed toward one side end surface of the rotating member 61 to form a slope 631 of the pushing member 63.
Preferably, the backrest rotating seat 11 is provided with a protruding column 1161 extending outward from the middle of the accommodating groove 116, and correspondingly, the rotating member 61 body 611 is provided with a hole 6111 in the middle for the protruding column 1161 to pass through.
Preferably, in this embodiment, only one driving mechanism 64 is provided, and the upper ends of the steel wires of the locking mechanisms on the left and right sides are connected to the driving mechanism 64, so that the driving mechanism 64 can be operated by one hand to drive the locking mechanisms on the left and right sides simultaneously. The drive mechanism 64 may be any known technique that is feasible and is not critical to the present invention and is therefore not described in detail herein.
In other embodiments, the lock release mechanism may be configured as a button (not shown), an elastic barb is extended on one side of the button, the backrest rotating seat 11 is provided with a hole through which the elastic barb passes and is buckled, and the elastic barb abuts against the gear 41 after passing through the hole, so that pressing the button can push the gear 41 to be disengaged from the first tooth slot 114.
In other embodiments, the locking and unlocking mechanisms may be provided as other known techniques that are feasible.
In this embodiment, the seat further includes left and right outer covers 4, and the outer covers 4 cover the outer sides of the left and right backrest rotation seats 11, respectively, so as to cover the rotation member 61.
As shown in fig. 1, in this embodiment, the backrest 1 is configured as an inverted U-shaped tube, and includes a left backrest tube 12, a right backrest tube 12, and a first transverse tube 13 connected to the upper ends of the left backrest tube 12 and the right backrest tube 12, the left backrest rotating seat 11 and the right backrest rotating seat 11 are respectively disposed at the lower ends of the left backrest tube 12 and the right backrest tube 12, a second transverse tube 14 is further connected between the upper sides of the left backrest tube 12 and the right backrest tube 12, and the driving mechanism 64 is connected to the second transverse tube 14. In other embodiments, the backrest 1 may be provided in a plate shape, and the driving mechanism 64 is provided at the rear side of the plate-shaped backrest 1.
In the present embodiment, the seat 2 is provided in a plate shape, and the left and right seat rotating seats 21 are provided to extend upward from rear ends of the left and right sides of the plate-shaped seat 2, respectively. In other embodiments, the seat 2 may be provided as two left and right seat bars, and then a seat cloth is sleeved on the seat bars, so that the seat rotating seat 21 is provided at the rear end of the seat bars.
The handrail 3 is U-shaped, and comprises a left handrail 32, a right handrail 32, and a front handrail 33 connected to the front ends of the left handrail 32 and the right handrail 32, and the left handrail rotating seat 31 and the right handrail rotating seat 31 are integrally formed at the rear ends of the left handrail 32 and the right handrail 32 respectively.
In this embodiment, preferably, in order to facilitate demolding of the seat rotary seat 21, the seat rotary seat 21 includes a tooth slot portion 216 provided with the second tooth slot 215 and a shielding portion 217 fixedly connected to a side of the tooth slot portion 216, and the shielding portion 217 is provided at a side of the armrest rotary seat 31.
The operating principle of the invention is as follows:
in the initial state, because of the action of the first spring 53, one end of the unlocking pin 51 is located in the first section groove 112 with the same depth as the arc unlocking groove 111, the other end of the unlocking pin 51 is located completely in the first section hole 212 of the seat rotating seat perforation 211, while one end of the locking pin 52 is located in the locking hole 311 and the other end is located in the second section hole 213 of the perforation 211 under the action of the second spring 54; the driving mechanism 64 is operated to drive the steel wire to move upwards, so that the rotating member 61 rotates, firstly, the 7-shaped spring seat 613 compresses the fifth spring 62 when the rotating member 61 rotates, in addition, the inclined surface 6120 of the rotating member 61 is dislocated with the inclined surface 631 of the pushing member 63, so that the pushing member 63 is driven to move towards the gear 41, the gear 41 is driven to move away from the direction of the back rotating seat 11, the gear 41 is separated from the engagement with the first tooth groove 114 and is only engaged with the second tooth groove 215, at this time, the back 1 can rotate relative to the seat rotating seat 21, and at this time, the back 1 can be rotated forwards or backwards. If the backrest 1 is rotated backwards, one end of the unlocking pin 51 always moves in the first section groove 112, so that the locking pin 52 is not affected, and the backrest 1 can be positioned at different inclination angles relative to the seat 2 by matching the thicker tooth 411 of the gear 41 with the deeper tooth grooves of the first tooth groove 114 and the second tooth groove 215, namely, the backrest 1 angle is adjusted; when the backrest 1 is rotated forward, if the locking pin 52 is still in the first section groove 112, the backrest 1 is still in an angle adjustment state, when the backrest 1 is rotated forward to a certain angle, one end of the unlocking pin 51 is matched with the second section groove 113 of the arc unlocking groove 111, at this time, the unlocking pin 51 is pushed to move towards the locking pin 52, so that the locking pin 52 is pushed to move towards the armrest rotating seat 31, and when the backrest 2 is rotated until the unlocking pin 51 is matched with the tail end of the second section groove 113, the locking pin 52 is pushed to be completely separated from the through hole 211 and is completely positioned in the locking hole 311 of the armrest rotating seat 31, so that the armrest rotating seat 31 can rotate relative to the seat rotating seat 21; at this time, the backrest 1 is continuously rotated forward, and when the backrest 1 hits the armrests 3, the armrests 3 are pressed down until the seat 2, the armrests 3 and the backrest 1 are close to each other, and at this time, the seat is completely folded together, as shown in fig. 10. That is, when the seat is folded, the armrest 3 does not need to be disassembled, and the armrest 3 can be folded in a linkage manner along with the backrest 1, so that the folding operation is very convenient, and the volume of the folded seat is small and occupies little space.
Preferably, when the seat is in the folded state, the thicker teeth 411 of the gear 41 are simultaneously engaged with one of the first tooth slot 114 and the second tooth slot 215 with a deeper depth, so as to lock the seat in the folded state. When the seat is to be unfolded, the drive mechanism 64 is operated, the lock mechanism is released, and the backrest 1 is then rotated backward. Because the armrest resetting device is arranged between the armrest rotating seat 31 and the seat rotating seat 21, the limiting pin 71 moves in the travel groove 314 during the rotation and retraction process of the armrest 3, thereby compressing the third spring 72; when the backrest 1 is not pressed against the armrest 3 any more during the unfolding of the seat, the armrest 3 is automatically reset by the restoring force of the third spring 72.
As shown in fig. 1 and 10, the backrest 1 is further connected with a top strip 5, and lower ends of left and right sides of the top strip 5 are respectively pivoted on left and right sides of the backrest 1 in an angle-adjustable manner. The pin joint mode of the roof strip 5 and the backrest 1 is a known mode, and the roof strip 5 can be relatively adjusted to different angles. When the seat is folded, the roof bar 5 can rotate along with the backrest 1, and if the angle exists before the folding, the roof bar 5 can be directly pulled to be folded on the armrests 3 after the seat is folded.
The front end of the seat part 2 is also connected with a U-shaped shank rest 6, and the rear ends of the left side and the right side of the U-shaped shank rest 6 are respectively connected with the left side and the right side of the front end of the seat part 2 in a relatively angle-adjustable manner. After the seat is folded, the lower leg rest 6 can be rotated to a position parallel to the seat portion 2 or rotated to a state of being stacked under the seat portion 2 according to the height of the backrest 1. Specifically, if the backrest 1 is higher, the horizontal length will be longer after the backrest is folded, and the calf rest 6 is rotated to a position parallel to the seat 2, the overall length of the calf rest 6 and the backrest 1 will not be longer than the backrest 1, so that the volume of the folding material will not be increased; if the overall length of the calf rest 6 and the backrest 1 is longer than the backrest 1, the calf rest 6 can be rotated to lie under the seat 2.
In the above description, the back rest 1 is positioned at the rear, the calf rest 6 is positioned at the front, the armrests 33 on both sides are positioned at the left and right, the back rest first transverse tube 13 is positioned at the upper, and the seat 2 is positioned at the lower.
Claims (7)
1. The utility model provides a children's shallow seat that handrail can link to receive and close which characterized in that: comprises a backrest, a seat part and handrails, wherein the lower ends of the left side and the right side of the backrest are respectively provided with a backrest rotating seat, the rear ends of the left side and the right side of the seat part are respectively provided with a seat rotating seat, the rear ends of the left side and the right side of the handrails are respectively provided with a handrail rotating seat, the seat rotating seat on each side of the left side and the right side is arranged between the handrails rotating seat and the backrest rotating seat, the seat rotating seat and the handrails rotating seat are mutually pivoted, a locking mechanism for limiting the relative rotation of the backrest rotating seat and the seat rotating seat is arranged between the backrest rotating seat and the seat rotating seat, the seat also comprises a left handrail linkage folding mechanism and a right handrail linkage folding mechanism, each handrail linkage folding mechanism comprises an arc unlocking groove arranged on one side of the backrest rotating seat towards the seat rotating seat, a left and right extending perforation arranged on the seat rotating seat, a locking hole arranged on one side of the handrails rotating seat towards the seat rotating seat, a unlocking pin, a locking pin, a second spring and a third spring, the arc unlocking groove comprises a first section groove with consistent depth and a second section groove which extends obliquely from the rear end of the first section groove towards the end face of the back rotating seat towards the seat rotating seat, the perforation comprises a first section hole towards the back rotating seat and a second section hole towards the armrest rotating seat, the diameter of the first section hole is larger than that of the second section hole, the unlocking pin comprises a pin body and a circle of flange arranged on the periphery of the pin body, one end of the unlocking pin is inserted into the arc unlocking groove, the other end of the unlocking pin is inserted into the perforation, the second spring is sleeved outside the other end of the unlocking pin, one end of the second spring is propped against the flange of the unlocking pin, the other end is abutted against the bottom wall of the first section of hole of the perforation; the third spring is arranged in the locking hole, one end of the locking pin is inserted into the locking hole and abuts against the third spring, and under the action of the third spring, the other end of the locking pin is inserted into the through hole and abuts against the unlocking pin;
the locking mechanism comprises a first tooth socket arranged on the end face of the back rotating seat facing one side of the seat rotating seat, a second tooth socket arranged on the end face of the opposite side of the seat rotating seat, a gear and a fourth spring, one end of the fourth spring is propped against the gear, the other end of the fourth spring is propped against the bottom wall of the second tooth socket, and under the action of the fourth spring, the gear is meshed with the first tooth socket and the second tooth socket at the same time, so that the back rotating seat and the seat rotating seat are in a locking state, and cannot rotate relatively, namely, the back and the seat cannot rotate relatively;
the thickness of one tooth of the gear is larger than that of other teeth, the depth of a plurality of tooth grooves of the first tooth groove is larger than that of other tooth grooves, and correspondingly, the depth of a plurality of tooth grooves of the second tooth groove is also larger than that of other tooth grooves;
the seat also comprises a left locking mechanism and a right locking mechanism which are used for locking the locking mechanism, wherein the locking mechanism comprises a rotating piece, a fifth spring, a pushing piece, a steel wire, a driving mechanism and a locking mechanism, wherein the lower end of the steel wire is connected with the rotating piece and used for pulling the rotating piece to rotate, and the driving mechanism is arranged on the backrest and connected with the upper end of the steel wire and used for pulling the steel wire upwards; the back rotating seat is provided with a concave annular groove at the bottom wall of the first tooth groove, a containing groove is arranged in the middle of the outer side of the back rotating seat, a through hole communicated with the annular groove is formed in the bottom wall of the containing groove, and an arc-shaped spring groove is formed in the outer side of the containing groove; the rotating piece comprises a body, a boss extending from the body to the direction of the backrest rotating seat and a 7-shaped spring seat extending upwards from the body, and the end face of the boss is provided with an inclined plane; the body of the rotating piece is arranged in the accommodating groove, the boss penetrates through the through hole, the upper end of the 7-shaped spring seat is arranged in the arc-shaped spring groove, the fifth spring is arranged in the arc-shaped spring groove, one end of the fifth spring is abutted against the 7-shaped spring seat, and the other end of the fifth spring is abutted against the groove wall of one side, far away from the 7-shaped spring seat, of the arc-shaped spring groove; the pushing piece can be arranged in the annular groove in a left-right moving mode, one end of the pushing piece abuts against the gear, an inclined surface is arranged at the other end of the pushing piece, and the inclined surface of the pushing piece is matched with the inclined surface of the rotating piece.
2. The child car seat with the armrests capable of being folded in a linkage manner according to claim 1, wherein: the handrail rotating seat is characterized in that a handrail resetting device is arranged between the handrail rotating seat and the seat rotating seat, the handrail resetting device comprises an arc-shaped groove arranged on one side end face of the handrail rotating seat, an inserting hole arranged on one side end face of the seat rotating seat, a limiting pin and a fourth spring, the arc-shaped groove comprises a pressure spring groove and a travel groove arranged at the rear end of the pressure spring groove, the depth of the travel groove is deeper than that of the pressure spring groove, one end of the limiting pin is inserted into the inserting hole, the other end of the limiting pin is inserted into the travel groove, the fourth spring is arranged in the pressure spring groove, one end of the fourth spring abuts against the limiting pin, and the other end of the fourth spring abuts against the groove wall of the pressure spring groove, which is far away from one end of the travel groove.
3. The child car seat with the armrests capable of being folded in a linkage manner according to claim 1, wherein: the driving mechanism is only provided with one, and the upper ends of the steel wires of the locking mechanisms at the left side and the right side are connected with the driving mechanism.
4. A child car seat according to claim 3, wherein the armrests are foldable in a ganged manner, wherein: the backrest is arranged as an inverted U-shaped tube and comprises a left backrest tube, a right backrest tube and a transverse tube connected to the upper ends of the left backrest tube and the right backrest tube, the left backrest rotating seat and the right backrest rotating seat are respectively arranged at the lower ends of the left backrest tube and the right backrest tube, a second transverse tube is further connected between the upper sides of the left backrest tube and the right backrest tube, and the driving mechanism is connected to the second transverse tube or is in a plate shape and is arranged at the rear side of the plate-shaped backrest.
5. The child car seat with armrests capable of being folded in a linkage manner according to claim 1, 2 or 4, wherein: the seat is plate-shaped, and the left seat rotating seat and the right seat rotating seat are respectively arranged in an upward extending way from the rear ends of the left side and the right side of the plate-shaped seat; or the seat part is arranged into a left seat rod and a right seat rod, seat cloth is sleeved on the seat rods, and the seat part rotating seat is arranged at the rear end of the seat rods.
6. The child car seat with the armrests capable of being folded in a linkage manner according to claim 5, wherein: the handrail is U-shaped, and comprises a left handrail, a right handrail and a front handrail connected to the front ends of the left handrail and the right handrail, and a left handrail rotating seat and a right handrail rotating seat are respectively integrally formed at the rear ends of the left handrail and the right handrail.
7. The child car seat with the armrests capable of being folded in a linkage manner according to claim 1 or 2 or 4 or 5 or 6, wherein the child car seat is characterized in that: the backrest is also connected with a roof strip, and the lower ends of the left side and the right side of the roof strip are respectively pivoted on the left side and the right side of the backrest in an angle-adjustable manner; the front end of the seat is connected with a U-shaped shank rest, and the rear ends of the left side and the right side of the U-shaped shank rest are respectively connected to the left side and the right side of the front end of the seat in a relatively angle-adjustable manner.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621447045 | 2016-12-27 | ||
| CN2016214470454 | 2016-12-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107117199A CN107117199A (en) | 2017-09-01 |
| CN107117199B true CN107117199B (en) | 2024-01-26 |
Family
ID=59727326
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710302137.6A Active CN107117199B (en) | 2016-12-27 | 2017-05-02 | Child cart seat with armrests capable of being folded in linkage mode |
| CN201720475293.8U Withdrawn - After Issue CN206856772U (en) | 2016-12-27 | 2017-05-02 | The stroller seat that handrail linkage folds |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720475293.8U Withdrawn - After Issue CN206856772U (en) | 2016-12-27 | 2017-05-02 | The stroller seat that handrail linkage folds |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107117199B (en) |
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| CN107117199B (en) * | 2016-12-27 | 2024-01-26 | 上海童歌母婴用品有限公司 | Child cart seat with armrests capable of being folded in linkage mode |
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| CN112245138B (en) * | 2020-10-19 | 2023-03-24 | 上海邦邦机器人有限公司 | Linkage device, seat and wheelchair |
| CN114475756A (en) * | 2020-11-13 | 2022-05-13 | 明门瑞士股份有限公司 | Handrail folding mechanism and baby carriage |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN206856772U (en) | 2018-01-09 |
| CN107117199A (en) | 2017-09-01 |
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