CN111252133B - A reversible baby carriage seat frame structure - Google Patents

A reversible baby carriage seat frame structure Download PDF

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Publication number
CN111252133B
CN111252133B CN202010209151.3A CN202010209151A CN111252133B CN 111252133 B CN111252133 B CN 111252133B CN 202010209151 A CN202010209151 A CN 202010209151A CN 111252133 B CN111252133 B CN 111252133B
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CN
China
Prior art keywords
seat
rotating
backrest
rotating connecting
bayonet
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CN202010209151.3A
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Chinese (zh)
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CN111252133A (en
Inventor
钟德良
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Zhongshan Kingmoon Children Products Co ltd
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Zhongshan Kingmoon Children Products Co ltd
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Priority to CN202010209151.3A priority Critical patent/CN111252133B/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/10—Perambulator bodies; Equipment therefor
    • B62B9/102—Perambulator bodies; Equipment therefor characterized by details of the seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/10—Perambulator bodies; Equipment therefor
    • B62B9/12—Perambulator 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)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

The invention provides a reversible baby carrier seat frame structure which does not need to be disassembled when a user receives the baby carrier, and the structure comprises two rotating connecting seats and a seat frame which is detachably connected with the two rotating connecting seats, wherein the rotating connecting seats are provided with clamping pins for locking the rotating connecting seats, mounting seats which are detachably connected with the rotating connecting seats are arranged on two sides of the seat frame, seat locking components are arranged between the mounting seats and the rotating connecting seats, a backrest rod is arranged between the two mounting seats in a straddling way, a rotating seat which can enable the backrest rod to rotate relative to the mounting seats is arranged between the end part of the backrest rod and the mounting seats, a backrest locking component which can lock the rotating seats is arranged between the rotating seat and the mounting seats, a backrest unlocking component which can unlock the backrest locking component is arranged on the backrest rod, arc-shaped notches which are arranged along the rotating direction of the backrest rod and are used for avoiding the clamping pins when the rotating seat rotates are arranged in the arc-shaped notches, and the end parts of the arc-shaped notches are provided with guide inclined planes which enable the clamping pins to rotate to unlock the rotating connecting seats.

Description

Reversible baby carrier seat frame structure
[ Field of technology ]
The invention relates to the field of strollers, in particular to a reversible bracket structure of a stroller.
[ Background Art ]
When the seat of the baby carriage frame with the traditional structure needs to be reversed, the seat is often required to be detached from the frame, and then the seat is reversed and then the reversed seat is arranged on the frame, so that the seat is reversed. When the frame needs to be folded, the seat needs to be detached firstly and then the frame needs to be folded, the seat and the frame need to be stored separately during storage, the space is very occupied, and the seat needs to be installed on the frame again when the frame is used next time, so that the folding bicycle is very inconvenient.
[ Invention ]
The invention aims to solve the technical problem of providing a reversible baby carrier seat frame structure which does not need to be disassembled when the baby carrier is retracted.
The purpose of the invention is realized in the following way:
The utility model provides a seat frame structure of bassinet that can commutate, includes that two rotationally locate the inboard rotation connecting seat of two bassinets joints and with two rotation connecting seat can dismantle the seat frame of connection, be equipped with on the rotation connecting seat and block into the inboard bayonet lock of bassinet joint in order will rotation connecting seat locking, the both sides of seat frame be equipped with rotation connecting seat can dismantle the connection so that the seat frame can follow rotation connecting seat removes the mount pad of switching-over, the mount pad with be equipped with between the rotation connecting seat and be used for with seat locking subassembly of mount pad locking, two stride between the mount pad and be equipped with the back pole, back pole's tip with be equipped with between the mount pad can make back pole relatively the mount pad pivoted rotates the back locking subassembly that can lock the rotation seat, be equipped with on the back pole will back locking subassembly unblock, be equipped with on the rotation seat is followed its direction of rotation sets up so that is used for dodging the back locking subassembly unblock the arc recess when the bayonet lock is equipped with the arc recess is in the rotation connecting seat.
By adopting the structure, the seat frame can be reversed relative to the frame of the baby carrier through the detachable connection between the mounting seats and the rotary connecting seats at the two sides of the seat frame. When the baby carrier is normally unfolded and used, the backrest locking assembly locks the rotating seat, so that the rotating seat, the backrest rod and the mounting seat are fixed, the mounting seat is fixed on the rotating connecting seat through the seat locking assembly, and the rotating connecting seat is locked by being clamped into the clamping hole at the inner side of the baby carrier joint through the clamping pin, so that the seat frame is stably fixed on the baby carrier frame for use. When the baby carriage frame needs to be folded, the backrest locking component is unlocked through the backrest unlocking component, the rotating seat can rotate relative to the mounting seat to fold the backrest rod, the clamping pin can slide in the arc-shaped notch of the rotating seat in the rotating process of the rotating seat, when the clamping pin slides to the guide inclined plane of the end part along the arc-shaped notch, the rotating seat ejects the clamping pin to enable the clamping pin to be separated from the clamping hole to unlock the rotating connecting seat, so that the rotating connecting seat and the seat frame can integrally rotate and fold relative to the baby carriage frame, and finally the whole baby carriage frame can be folded. Therefore, the invention can be used for carrying out integrated vehicle collection with the frame of the baby carrier before and after the direction change of the seat without disassembly operation, is very convenient, can also be used for carrying out integrated storage of the seat and the frame of the baby carrier after the vehicle collection, saves storage space, and is very convenient without carrying out installation operation again in the next use.
The lower end of the rotating connecting seat is provided with the protruding block, the clamping pin comprises a pin shaft which can stretch and retract in the protruding block to penetrate through the rotating connecting seat and be clamped into the clamping hole, and a pin shaft connecting piece arranged at the end part of the pin shaft, and the pin shaft connecting piece can slide relative to the arc-shaped notch when the rotating seat rotates and eject the pin shaft to be separated from the clamping hole when sliding to the guiding inclined plane. When the baby carrier is normally used, the pin shaft of the bayonet lock is clamped into the clamping hole at the inner side of the joint of the baby carrier to lock the rotary connecting seat, the pin shaft connecting seat is positioned in the arc-shaped notch of the rotary seat, the back rod is folded firstly when the baby carrier needs to be folded, the rotary seat rotates at the moment to enable the pin shaft connecting seat to slide in the arc-shaped notch of the rotary seat, and when the pin shaft connecting seat slides to the guide inclined plane at the end part along the arc-shaped notch, the rotary seat ejects the pin shaft connecting seat together with the pin shaft to enable the pin shaft to be separated from the clamping hole to unlock the rotary connecting seat, so that the rotary connecting seat and the seat frame integrally can rotate and fold relative to the baby carrier frame.
According to the reversing baby carrier seat frame structure, the clamping sleeve is arranged on the mounting seat, correspondingly, the clamping block connected with the clamping sleeve in a clamping manner is arranged on the rotating connecting seat, and the seat frame can be detachably connected with the rotating connecting seat through the clamping connection between the clamping block and the clamping sleeve, so that the reversing of the seat is realized.
The seat locking assembly comprises bayonets arranged on the front side and the rear side of the clamping block, clamping columns which are arranged in the mounting seat and can elastically stretch and retract relative to the clamping sleeve to be connected with the bayonets in a clamping manner, and unlocking pressing blocks which protrude out of the mounting seat and are used for enabling the clamping columns to be tripped from the bayonets. When the seat frame is installed on the rotary connecting seat, the clamping columns are elastically clamped on the bayonets on the front side or the rear side of the clamping blocks, so that the seat frame is locked, when the seat frame needs to be disassembled, the unlocking pressing blocks need to be pressed down to enable the clamping columns to be tripped with the bayonets, and at the moment, the seat frame is unlocked and can be disassembled from the rotary connecting seat.
The seat frame structure of the baby carrier capable of reversing comprises a tooth-shaped groove arranged on the inner side of the installation seat and a movable block movably arranged between the installation seat and the rotation seat, wherein the upper end and the lower end of the movable block are respectively provided with a limiting convex column connected with the tooth-shaped groove in the upper side and the lower side of the installation seat in a clamping manner, and the backrest locking assembly further comprises an elastic pressing piece which is arranged in the backrest rod and is used for pressing the movable block so as to enable the limiting convex column to be clamped into the tooth-shaped groove. When the rotary seat is normally unfolded and used, the limiting convex columns are clamped into the tooth-shaped grooves under the jacking action of the elastic jacking piece, so that the rotary seat is fixed on the mounting seat.
According to the reversible baby carrier seat frame structure, the inner side of the mounting seat is provided with the arc-shaped guide groove communicated with the tooth-shaped groove so that the limiting convex column slides in the guide groove to adjust the position of the limiting convex column relative to the tooth-shaped groove. When spacing projection breaks away from the tooth groove, the back rest pole and the rotation seat can rotate relative to the installation seat, and the spacing projection slides in the arc guide way simultaneously to make spacing projection slidable to other positions department in tooth groove in order to adjust the angle of back rest pole, also can make spacing projection slide in the arc guide way simultaneously in order to receive and close back rest pole.
The reversing baby carrier seat frame structure is characterized in that the backrest unlocking assembly comprises an unlocking block arranged on the backrest rod and a pull rope which is arranged in the backrest rod and used for pulling the movable block to enable the limiting convex column to be separated from the tooth-shaped groove, and two ends of the pull rope are respectively connected with the unlocking block and the movable block. The pulling rope can pull the movable block by the pulling unlocking block to overcome the elasticity of the elastic propping piece and enable the limiting convex column to be separated from the tooth-shaped groove, so that the angle of the back rest rod can be adjusted or folded.
[ Description of the drawings ]
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a connection structure between a swivel connection base and a joint of a stroller according to the present invention;
FIG. 3 is a schematic view of the structure of the seat frame according to the present invention;
FIG. 4 is a schematic view of a structure of a rotary connecting seat according to the present invention;
FIG. 5 is a schematic view of a portion of the structure of the seat locking assembly of the present invention;
FIG. 6 is a schematic view of the inner side structure of the mounting base according to the present invention;
FIG. 7 is a schematic view of the configuration of the back lock assembly of the present invention;
FIG. 8 is a reference view of the back rest lever of the present invention in use;
FIG. 9 is a reference view showing the usage status of the stroller frame according to the present invention after the completion of the vehicle collection;
FIG. 10 is a reference view showing the back rest lever in use after the change of direction;
Fig. 11 is a reference view of the usage state of the stroller frame applicable to the change of the present invention when the whole stroller is completely retracted.
[ Detailed description ] of the invention
The utility model provides a seat frame structure of bassinet that can commutate, includes that two rotationally locate the inboard rotation connecting seat 1 of two bassinets joint 10 and with two the seat frame 2 that rotation connecting seat 1 can dismantle the connection is equipped with the bayonet lock 11 that can block into in bassinet joint 10 inboard draw-in hole 101 in order to lock rotation connecting seat 1 on the rotation connecting seat 1, the both sides of seat frame 2 are equipped with the mount pad 21 that can dismantle the connection with rotation connecting seat 1 so that seat frame 2 can be detached from rotation connecting seat 1 and commutate, be equipped with the seat locking subassembly 3 that is used for locking mount pad 21 between mount pad 21 and the rotation connecting seat 1, two stride between mount pad 21 and be equipped with back rest lever 4, be equipped with the rotation seat 5 that can make back rest lever 4 rotate relative mount pad 21 between the tip and the mount pad 21, be equipped with the back locking subassembly 6 that can lock rotation seat 5, be equipped with the back unlocking subassembly 7 that will unlock back locking subassembly 6 on the back rest lever 4, be equipped with along its direction setting in order to be used for dodging the recess that bayonet lock 11 when the rotation 11 makes back rest lever 11 rotate 11 and make arc-shaped recess 51 rotate in the arc-shaped connection seat 11, the arc-shaped connection seat 11 is equipped with between back rest lever 4 and the arc-shaped connection seat 11.
The lower end of the rotary connecting seat 1 is provided with a bump 12, the bayonet 11 comprises a pin 111 which can stretch and retract in the bump 12 to penetrate through the rotary connecting seat 1 and be clamped in the clamping hole 101, and a pin connecting piece 112 arranged at the end part of the pin 111, and the pin connecting piece 112 can slide relative to the arc-shaped notch 51 when the rotary seat 5 rotates and eject the pin 111 to be separated from the clamping hole 101 when sliding to the guide inclined plane 52. When the baby carriage is normally used, the pin shaft 111 of the bayonet lock 11 is clamped into the clamping hole 101 at the inner side of the baby carriage joint to lock the rotary connecting seat 1, the pin shaft connecting piece 112 is positioned in the arc-shaped notch 51 of the rotary seat 5, when the baby carriage is required to be folded, the backrest rod 4 is folded firstly, the rotary seat 5 rotates to enable the pin shaft connecting piece 112 to slide in the arc-shaped notch 51 of the rotary seat 5, and when the pin shaft connecting piece 112 slides to the guide inclined plane 52 at the end part along the arc-shaped notch 51, the rotary seat 5 ejects the pin shaft connecting piece 112 together with the pin shaft 111 to enable the pin shaft 111 to be separated from the clamping hole 101 to unlock the rotary connecting seat 1, so that the rotary connecting seat 1 and the seat frame 2 can integrally rotate and fold relative to the baby carriage frame. To prevent the pin 111 from falling off the bump 12, a limit boss (not shown) may be provided in the bump 12.
The clamping sleeve 211 is arranged on the mounting seat 21, correspondingly, the clamping block 13 which is connected with the clamping sleeve 211 in a clamping way is arranged on the rotary connecting seat 1, and the detachable connection between the seat frame 2 and the rotary connecting seat 1 can be realized through the clamping connection between the clamping block 13 and the clamping sleeve 211, so that the reversing of the seat is realized.
The seat locking assembly 3 includes a bayonet 31 provided on both front and rear sides of the bayonet 13, a clamping post 32 provided in the mount 21 and elastically retractable with respect to the card sleeve 211 to be snap-coupled with the bayonet 31, and an unlocking pressing block 33 protruding from the mount 21 for releasing the clamping post 32 from the bayonet 31. The mounting seat 21 is also provided with a pressing spring for pressing the clamping column 32 to elastically clamp the clamping column into the bayonet 31, when the seat frame 2 is mounted on the rotary connecting seat 1, under the action of the pressing force of the pressing spring, the clamping column 32 is elastically clamped on the bayonet 31 on the front side or the rear side of the clamping block 13 (when the seat frame 2 is not reversed, as shown in fig. 1 or 8, the seat frame 2 is forwards clamped on the bayonet 31 on the front side of the clamping block 13, when the seat frame 2 is reversed, as shown in fig. 10, the seat frame 2 is backwards clamped on the bayonet 31 on the rear side of the clamping block 13, so that the seat frame 2 is locked, and when the seat frame 2 needs to be disassembled, the unlocking pressing block 33 needs to be pressed down to enable the clamping column 32 to be tripped from the bayonet 31, and when the seat frame 2 is unlocked and can be disassembled from the rotary connecting seat 1.
The backrest locking assembly 6 comprises a tooth-shaped groove 61 arranged on the inner side of the mounting seat 21 and a movable block 62 movably arranged between the mounting seat 21 and the rotating seat 5, wherein the upper end and the lower end of the movable block 62 are provided with limiting convex columns (not shown in the figure) which are respectively connected with the tooth-shaped grooves 61 on the upper side and the lower side of the mounting seat 21 in a clamping manner, and the backrest locking assembly 6 also comprises an elastic pressing piece which is arranged in the backrest rod 4 and is used for pressing the movable block 62 so that the limiting convex columns are clamped into the tooth-shaped groove 61. When the rotary seat is normally unfolded and used, the limiting convex columns are clamped into the tooth-shaped grooves 61 under the jacking action of the elastic jacking piece, so that the rotary seat 5 is fixed on the mounting seat 21. The elastic pressing piece is preferably a spring.
An arc-shaped guide groove 64 communicated with the tooth-shaped groove 61 is arranged on the inner side of the mounting seat 21 and is used for enabling the limiting convex column to slide in the arc-shaped guide groove to adjust the position of the limiting convex column relative to the tooth-shaped groove 61. When the spacing convex column breaks away from the tooth-shaped groove 61, the backrest rod 4 and the rotating seat 5 can rotate relative to the mounting seat 21, and meanwhile the spacing convex column slides in the arc-shaped guide groove 64, so that the spacing convex column can slide to other positions of the tooth-shaped groove 61 to adjust the angle of the backrest rod 4, and meanwhile the spacing convex column can also slide in the arc-shaped guide groove 64 to fold the backrest rod 4.
The backrest unlocking assembly 7 comprises an unlocking block 71 arranged on the backrest rod 4 and a pull rope (not shown in the figure) which is arranged in the backrest rod 4 and used for pulling the movable block 62 to enable the limiting convex column to be separated from the tooth-shaped groove 61, and two ends of the pull rope are respectively connected with the unlocking block 71 and the movable block 62. The unlocking block 71 is broken to enable the pull rope to pull the movable block 62 to overcome the elastic force of the elastic pressing piece and enable the limiting convex column to be separated from the tooth-shaped groove 62, so that the angle adjustment or folding of the backrest rod 4 can be carried out.
When the invention is normally unfolded and used, the backrest locking component 6 locks the rotating seat 5, so that the rotating seat 5 and the backrest rod 4 are fixed with the mounting seat 21, the mounting seat 21 is fixed on the rotating connecting seat 1 through the seat locking component 3, and the rotating connecting seat 1 is locked by being clamped into the clamping hole 101 at the inner side of the joint of the baby carrier through the clamping pin 11, so that the seat frame 2 is stably fixed on the frame of the baby carrier for use. In the use process, if the angle of the backrest rod 4 needs to be adjusted, the unlocking block 71 can be broken off to enable the pull rope to pull the movable block 62 to overcome the elastic force of the elastic pressing piece and enable the limiting convex column to be separated from the tooth-shaped groove 62, at the moment, the backrest rod 4 can be rotated to be adjusted to a proper angle, the rotating seat 5 rotates relative to the mounting seat 21 in the adjustment process, the limiting convex column slides in the arc-shaped guide groove 64, and accordingly the limiting convex column slides to the tooth-shaped groove 61 at the corresponding position, and therefore the angle adjustment of the backrest rod 4 is completed. When the seat is required to be reversed, the unlocking pressing block 33 is required to be pressed down so that the clamping columns 32 and the bayonets 31 are tripped, at this time, the seat frame 2 is unlocked and can be detached from the rotary connecting seat 1 to be reversed, after reversing, under the action of the top pressure spring, the clamping columns 32 are elastically clamped on the bayonets 31 on the rear side of the clamping blocks 13 (when the seat frame 2 is not reversed, the seat frame 2 is forwards, and the clamping columns 21 are clamped on the bayonets 31 on the front side of the clamping blocks 13), so that the seat frame 2 is locked again.
When it is desired to retract the stroller frame, the operation is substantially the same whether or not the seat is reversed. Firstly, the unlocking block 71 is pulled to enable the pull rope to pull the movable block 62 and enable the limiting convex column to be separated from the tooth-shaped groove 62, at the moment, the backrest rod 4 can be rotated to fold the same, the rotating seat 5 rotates relative to the mounting seat 21 in the process of folding the backrest rod 4, the limiting convex column slides in the arc-shaped guide groove 64, meanwhile, the pin shaft connecting piece 112 slides in the arc-shaped notch 51 of the rotating seat 5, when the pin shaft connecting piece 112 slides to the end guide inclined surface 52 along the arc-shaped notch 51, the rotating seat 5 pushes out the pin shaft connecting piece 112 together with the pin shaft 111 to enable the pin shaft 111 to be separated from the clamping hole 101 to unlock the rotating connecting seat 1, so that the rotating connecting seat 1 and the seat frame 2 can be rotated and folded integrally relative to the baby carriage frame (when the seat is not reversed, as shown in fig. 8, the connecting seat 1 and the seat frame 2 are integrally folded towards the front foot rod 20 of the baby carriage frame, and when the seat is folded back, as shown in fig. 10, the connecting seat 1 and the seat frame are integrally folded towards the rear foot rod 30 of the baby carriage frame, and finally, the hand push rod 40, the rear foot rod 30 and the seat frame of the baby carriage are folded together can be completed (as shown in fig. 11). Therefore, the invention can be taken in with the baby carriage frame integrally without disassembling operation after the seat is changed to the front and the reversing, is very convenient, can also enable the seat and the baby carriage frame to be stored integrally after taking in, saves storage space, can be reused by directly unfolding the hand push rod 40, the rear foot rod 30, the front foot rod 20, the seat frame 2 and the backrest rod 4 of the baby carriage frame when being used next time, and is very convenient without carrying out the installation operation of the seat again.

Claims (7)

1.一种可换向的童车座架结构，其特征在于包括两可转动地设于两童车关节(10)内侧的转动连接座(1)以及与两所述转动连接座(1)可拆卸连接的座位架(2)，所述转动连接座(1)上设有可卡入童车关节(10)内侧卡孔(101)内以将所述转动连接座(1)锁定的卡销(11)，所述座位架(2)的两侧设有与所述转动连接座(1)可拆卸连接以使所述座位架(2)可从所述转动连接座(1)拆下并换向的安装座(21)，所述安装座(21)与所述转动连接座(1)之间设有用于将所述安装座(21)锁定的座位锁定组件(3)，两所述安装座(21)之间跨设有背靠杆(4)，所述背靠杆(4)的端部与所述安装座(21)之间设有可使所述背靠杆(4)相对所述安装座(21)转动的转动座(5)，所述转动座(5)与所述安装座(21)之间设有可将转动座(5)锁定的背靠锁定组件(6)，所述背靠杆(4)上设有将所述背靠锁定组件(6)解锁的背靠解锁组件(7)，所述转动座(5)上设有沿其转动方向设置以用于避让所述卡销(11)的弧形凹口(51)以使得当所述转动座(5)转动时所述卡销(11)可在所述弧形凹口(51)内滑动，所述弧形凹口(51)的端部设有使所述卡销(11)顶出以解锁所述转动连接座(1)的导向斜面(52)。1. A reversible baby carriage seat frame structure, characterized in that it comprises two rotating connecting seats (1) rotatably arranged on the inner sides of two baby carriage joints (10) and a seat frame (2) detachably connected to the two rotating connecting seats (1), the rotating connecting seat (1) is provided with a latch pin (11) which can be inserted into a latch hole (101) on the inner side of the baby carriage joint (10) to lock the rotating connecting seat (1), and mounting seats (21) are provided on both sides of the seat frame (2) so as to be detachably connected to the rotating connecting seat (1) so that the seat frame (2) can be removed from the rotating connecting seat (1) and reversed, a seat locking assembly (3) for locking the mounting seat (21) is provided between the mounting seat (21) and the rotating connecting seat (1), and a backrest rod (4) is provided between the two mounting seats (21). ), a rotating seat (5) is provided between the end of the backrest rod (4) and the mounting seat (21) so that the backrest rod (4) can rotate relative to the mounting seat (21), a backrest locking assembly (6) is provided between the rotating seat (5) and the mounting seat (21) so that the rotating seat (5) can lock the rotating seat (5), the backrest rod (4) is provided with a backrest unlocking assembly (7) for unlocking the backrest locking assembly (6), the rotating seat (5) is provided with an arc-shaped recess (51) arranged along its rotation direction for avoiding the bayonet (11) so that when the rotating seat (5) rotates, the bayonet (11) can slide in the arc-shaped recess (51), and the end of the arc-shaped recess (51) is provided with a guiding inclined surface (52) for pushing the bayonet (11) out to unlock the rotating connecting seat (1). 2.根据权利要求1所述的一种可换向的童车座架结构，其特征在于所述转动连接座(1)的下端设有凸块(12)，所述卡销(11)包括可在所述凸块(12)内伸缩活动以贯穿所述转动连接座(1)而卡入卡孔(101)内的销轴(111)和设于所述销轴(111)端部的销轴连接片(112)，所述销轴连接片(112)可在所述转动座(5)转动时相对所述弧形凹口(51)滑动并在滑动至所述导向斜面(52)时将所述销轴(111)顶出以脱离卡孔(101)。2. A reversible baby stroller seat frame structure according to claim 1, characterized in that a protrusion (12) is provided at the lower end of the rotating connecting seat (1), and the locking pin (11) includes a pin shaft (111) that can be telescopically movable in the protrusion (12) to penetrate the rotating connecting seat (1) and be locked in the locking hole (101) and a pin shaft connecting piece (112) provided at the end of the pin shaft (111), and the pin shaft connecting piece (112) can slide relative to the arc-shaped recess (51) when the rotating seat (5) rotates and push the pin shaft (111) out to disengage from the locking hole (101) when sliding to the guide inclined surface (52). 3.根据权利要求1或2所述的一种可换向的童车座架结构，其特征在于所述安装座(21)上设有卡套(211)，相应的，所述转动连接座(1)上设有与所述卡套(211)卡接连接的卡接块(13)。3. A reversible baby carriage seat frame structure according to claim 1 or 2, characterized in that a clamping sleeve (211) is provided on the mounting seat (21), and correspondingly, a clamping block (13) is provided on the rotating connecting seat (1) to be clamped and connected to the clamping sleeve (211). 4.根据权利要求3所述的一种可换向的童车座架结构，其特征在于所述座位锁定组件(3)包括设于所述卡接块(13)前后两侧上的卡口(31)、设于所述安装座(21)内并可相对所述卡套(211)弹性伸缩以与所述卡口(31)卡扣连接的卡接柱(32)以及突出于所述安装座(21)且用于使所述卡接柱(32)与所述卡口(31)脱扣的解锁按压块(33)。4. A reversible baby stroller seat frame structure according to claim 3, characterized in that the seat locking assembly (3) includes a bayonet (31) arranged on the front and rear sides of the bayonet block (13), a bayonet column (32) arranged in the mounting seat (21) and elastically retractable relative to the clamping sleeve (211) to be snap-connected with the bayonet (31), and an unlocking press block (33) protruding from the mounting seat (21) and used to disengage the bayonet column (32) from the bayonet (31). 5.根据权利要求1或2所述的一种可换向的童车座架结构，其特征在于所述背靠锁定组件(6)包括设于所述安装座(21)内侧的齿形槽(61)和可活动地设于所述安装座(21)与所述转动座(5)之间的活动块(62)，所述活动块(62)的上下两端设有分别与所述安装座(21)上下两侧的齿形槽(61)卡接连接的限位凸柱，所述背靠锁定组件(6)还包括设于所述背靠杆(4)内且用于顶压所述活动块(62)以使得所述限位凸柱卡入所述齿形槽(61)内的弹性顶压件。5. A reversible baby carriage seat frame structure according to claim 1 or 2, characterized in that the backrest locking assembly (6) includes a toothed groove (61) arranged on the inner side of the mounting seat (21) and a movable block (62) movably arranged between the mounting seat (21) and the rotating seat (5), and the upper and lower ends of the movable block (62) are provided with limiting bosses which are respectively connected to the toothed grooves (61) on the upper and lower sides of the mounting seat (21), and the backrest locking assembly (6) also includes an elastic pressing member arranged in the backrest rod (4) and used to press the movable block (62) so that the limiting boss is inserted into the toothed groove (61). 6.根据权利要求5所述的一种可换向的童车座架结构，其特征在于所述安装座(21)的内侧设有与所述齿形槽(61)连通的弧形导向槽(64)以供所述限位凸柱在其内滑动而调节所述限位凸柱相对所述齿形槽(61)的位置。6. A reversible baby carriage seat frame structure according to claim 5, characterized in that an arc-shaped guide groove (64) connected to the tooth-shaped groove (61) is provided on the inner side of the mounting seat (21) for the limiting boss to slide therein to adjust the position of the limiting boss relative to the tooth-shaped groove (61). 7.根据权利要求5所述的一种可换向的童车座架结构，其特征在于所述背靠解锁组件(7)包括设于所述背靠杆(4)上的解锁块(71)和设于所述背靠杆(4)内且用于拉动所述活动块(62)以使所述限位凸柱脱离所述齿形槽(61)的拉绳，所述拉绳的两端分别与所述解锁块(71)和所述活动块(62)连接。7. A reversible baby carriage seat frame structure according to claim 5, characterized in that the backrest unlocking assembly (7) includes an unlocking block (71) arranged on the backrest rod (4) and a pull rope arranged in the backrest rod (4) and used to pull the movable block (62) to make the limiting boss disengage from the toothed groove (61), and the two ends of the pull rope are respectively connected to the unlocking block (71) and the movable block (62).
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CN116853338A (en) * 2019-08-28 2023-10-10 明门瑞士股份有限公司 Trolley frame
CN112026902A (en) * 2020-09-17 2020-12-04 安徽呀呀乐儿童用品有限公司 Unlocking and locking reversing seat baby carriage with memory function
CN113511249B (en) * 2021-07-07 2022-11-25 好孩子儿童用品有限公司 stroller

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CN203544083U (en) * 2013-10-08 2014-04-16 昆山小小恐龙儿童用品有限公司 Folding joint of baby carrier
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