CN218806047U - Seat reversing mechanism of baby carriage - Google Patents

Abstract

The utility model discloses a seat reversing mechanism of children's shallow, including a supporting seat, be connected with its seat support piece rotatory at the horizontal plane direction relatively on the supporting seat, seat support piece both sides rotatable coupling has push rod assembly, the position that push rod assembly can stop is including the position of carrying out that can carry out the shallow and being used for driving the vertical position of seat support piece at the horizontal plane direction is rotatory, be equipped with the locking subassembly between push rod assembly and the seat support piece, push rod assembly, still be equipped with between seat support piece and the supporting seat three and can lock seat support piece and supporting seat and enable the control assembly of seat support piece and supporting seat unblock when push rod assembly rotates to vertical position, push rod assembly lower extreme is equipped with horizontal axle, control assembly is including locating horizontal epaxial gear, be connected with the rack on the supporting seat. The utility model aims at overcoming the defects of the prior art and providing a seat reversing mechanism of a child stroller which can complete reversing and has simple reversing.

Description

Seat reversing mechanism of baby stroller

[ technical field ] A method for producing a semiconductor device

The utility model relates to a seat reversing mechanism of a baby carriage.

[ background ] A method for producing a semiconductor device

The baby stroller is usually used for taking when an infant goes out, the seat assembly of the baby stroller faces towards the front, the seat assembly usually faces towards the rear to enable the taken infant to face towards a caregiver when the baby stroller is used, the baby stroller is convenient for the caregiver to check the state of the infant and communicate with the infant, the orientation of the seat assembly of the existing most of baby strollers usually faces towards the front fixedly, the baby stroller cannot be reversed according to needs, the baby stroller is inconvenient to use, the seat assembly can be detachably arranged on part of the existing baby stroller, when an adult needs to reverse the seat assembly, the seat assembly is detached and then changed in one direction, and then the baby stroller is assembled on a frame of the baby stroller, so that the baby can face towards the adult. The seat needs to be detached and then installed during the seat reversing, and the reversing operation is troublesome. The utility model discloses another provide a seat reversing mechanism's of new children's shallow implementation scheme.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art and providing a seat reversing mechanism of a child cart which can complete reversing and has simple reversing.

The utility model discloses a realize through following technical scheme:

the utility model provides a seat reversing mechanism of children's shallow, is including being connected to the supporting seat 21 on the children's shallow frame, supporting seat 21 on be connected with and to its rotatory seat support piece 22 at the horizontal plane direction relatively, seat support piece 22 both sides swivelling joint have can drive seat support piece 22 rotatory in order to realize seat support piece 22 front and back push rod assembly 3 of switching-over, push rod assembly 3 can the position of stopping including the position of carrying out the shallow of carrying out and be used for driving seat support piece 22 at the rotatory vertical position of horizontal plane direction, push rod assembly 3 and seat support piece 22 between be equipped with and make push rod assembly 3 keep the locking subassembly 7 at the position of carrying out when locking, push rod assembly 3, seat support piece 22 and supporting seat 21 between still be equipped with and can lock seat support piece 22 and supporting seat 21 and can follow its pivoted transverse shaft 31 when push rod assembly 3 rotates to vertical position and make seat support piece 22 and supporting seat support piece 21 unblock 5, push rod assembly 3 lower extreme be equipped with transversely to wear to establish seat support piece 22 and can follow its pivoted transverse shaft 31 and control subassembly 5 including locating the gear 51 on transverse shaft 31, the gear and the supporting seat support piece 21 is connected with the relative rotation rack gear and can break-off with the block 52 and unblock when supporting seat support piece 21 and slide and be connected with the supporting seat support piece 21 and can the block.

The positions where the seat supporting member 22 stays include a forward direction facing forward and a reverse direction facing backward after rotating in the horizontal plane direction, a third locking structure 53 capable of locking the seat supporting member 22 in the forward direction and a fourth locking structure 54 capable of locking the seat supporting member 22 in the reverse direction are arranged between the rack 52 and the supporting base 21, and a stopping assembly 55 capable of preventing the push rod assembly 3 from rotating forward in the vertical position is further arranged between the rack 52 and the supporting base 21.

The seat supporting member 22 includes a base 221 and a rotating plate 222 connected to the base 221 and capable of rotating together, and the supporting seat 21 is disposed between the base 221 and the rotating plate 222.

The rack 52 includes a rack body 521, the rack body 521 is provided with a plurality of tooth portions 522 capable of meshing with the gear 51, the front and rear ends of the rack body 521 are provided with a first protrusion 523 and a second protrusion 524 extending downward, the support base 21 is provided with a first sliding groove 211 capable of allowing the first protrusion 523 to slide in the circumferential direction, and the turntable 222 is further provided with a second sliding groove 2221 allowing the second protrusion 524 to slide in the circumferential direction.

The third locking structure 53 includes a first clamping protrusion 531 disposed on the front side of the supporting seat 21, and the first protruding block 523 is provided with a first clamping groove 532, which can allow the first clamping protrusion 531 to be clamped into the first clamping protrusion to prevent the seat support 22 from rotating in the horizontal plane direction when the seat support 22 is in the forward direction;

the height of second lug 524 be greater than the height of first lug 523, fourth closure structure 54 including locate supporting seat 21 rear side and can be in the fixed second joint of first draw-in groove 532 joint when seat support member 22 is in the reversal position 541, first spout 211 on and lie in first joint protruding 531 one side and be equipped with the undercut and can be for the recess 542 that second lug 524 abdomens when rack 52 slides.

Recess 542 on be equipped with the protruding 543 of third joint, second lug 524 on be equipped with the second draw-in groove 544 that can supply the protruding 543 card of third joint to go into, and when seat support piece 22 by the locking in opposite directions first draw-in groove 532 fixed just with the protruding 541 joint of second joint the protruding 543 of third joint with second draw-in groove 544 joint fixed.

The stopping assembly 55 includes a first abutting surface 551 disposed on the supporting seat 21 and capable of abutting against the outer wall of the second protrusion 524 when the supporting seat 22 is in the forward direction and the push rod assembly 3 is in the vertical position, and the stopping assembly 55 further includes a second abutting surface 552 disposed on the supporting seat 21 and capable of abutting against the outer wall of the first protrusion 523 when the supporting seat 22 is in the reverse direction and the push rod assembly 3 is in the vertical position.

The seat support 22 is provided with a seat assembly 4 for sitting, the seat assembly 4 comprises a seat part 41 connected with the support assembly 2, the seat part 41 is connected with a backrest part 42 capable of rotating relative to the seat part, and the backrest part 42 is connected with an armrest assembly 43 capable of rotating relative to the backrest part 42.

The seat part 41 is detachably connected to the support component 2, a locking structure 6 capable of locking the seat part 41 and the support component 2 is arranged between the seat part 41 and the support component 2, a locking opening 63 is formed in the seat part 41, a plurality of second sliding parts 65 capable of sliding transversely relative to the support component 2 are arranged on the support component 2, a clamping tongue 651 capable of being clamped into the locking opening 63 is arranged on each second sliding part 65, a second spring 66 capable of enabling the clamping tongue 651 to be kept in a locked state is arranged between each second sliding part 65 and the support component 2, two sliding unlocking bars 67 capable of sliding back and forth relative to the support component 2 are further arranged on the support component 2, and bolts 68 capable of being respectively clamped into the two second sliding parts 65 and driving the clamping tongue 651 to be separated from the locking opening 63 when the sliding unlocking bars 67 slide are arranged on the sliding unlocking bars 67 at intervals.

The front end and the rear end of the sliding unlocking bar 67 are provided with a front operation part 671 and a rear operation part 672 which protrude out of the support component 2, and the sliding unlocking bar 67 is further provided with a V-shaped groove 673 which can enable the bolt 68 to move after the front operation part 671 and/or the rear operation part 672 is pressed and operated so as to enable the latch 651 to be separated from the latch port 63.

Compared with the prior art, the utility model discloses there is following advantage:

1. after unblock locking Assembly, push rod assembly can be at interconversion between position and the vertical position of carrying out, the utility model discloses the position that push rod assembly on well supporting component stopped is including carrying out position and vertical position of carrying out, when push rod assembly stops when carrying out the position, the adult can push away children's shallow frame through push rod assembly and walk forward, when push rod assembly rotates to vertical position forward from carrying out the position, the adult can hold the push rod assembly of vertical position and drive seat support piece rotatory at the horizontal plane direction, when seat support piece is rotatory 180 degrees, seat support piece has just accomplished the front and back switching-over, the child who takes on seat support piece this moment moves towards the adult. Therefore, when the adult operates the seat supporting piece to change the direction, only the push rod component needs to be rotated forwards in the vertical plane direction, so that the push rod component moves to the vertical position from the pushing displacement, and then the push rod component is rotated in the horizontal plane direction, and the operation is very convenient and fast. When the push rod assembly is rotated forwards and moved to the vertical position from the pushing displacement, the gear on the transverse shaft is meshed with the rack for transmission, so that the rack slides relative to the supporting seat and is in an unlocked state with the supporting seat, and at the moment, the seat supporting member can rotate relative to the supporting seat for reversing. The whole structure is simple and compact, and the operation is smooth and reliable.

2. More importantly, a control assembly is further arranged between the push rod assembly and the seat support, the control assembly can prevent the push rod assembly from continuously rotating forwards when the push rod assembly is in a vertical position, misoperation of forward rotation of the push rod assembly caused by unbalanced force application when torsion in a horizontal plane direction is applied to the push rod assembly in the vertical position is avoided, safety is ensured, and the control assembly also ensures that the push rod assembly can only rotate backwards to return to a pushing position after reversing of the seat assembly is completed, so that the use reliability of the cart is ensured.

[ description of the drawings ]

Fig. 1 is a perspective view of a seat reversing mechanism of the stroller of the present invention;

FIG. 2 is a diagram of the seat support member and the seat assembly in the forward position and the push rod assembly in the push position of the seat reversing mechanism of the stroller of the present invention;

fig. 3 is a state diagram of the seat support member and the seat assembly in the seat reversing mechanism of the stroller of the present invention in the normal position and the push rod assembly in the vertical position;

FIG. 4 is a diagram of the seat support member and the seat assembly in the seat reversing mechanism of the stroller of the present invention in a reversed position and the push rod assembly in a vertical position;

FIG. 5 is a diagram of the seat support member and the seat assembly in the seat reversing mechanism of the stroller of the present invention in a reversed position and the push rod assembly in a pushing position;

FIG. 6 is a perspective view of the front legs, rear legs and support assembly of the stroller frame;

FIG. 7 is a side view of the front legs, rear legs and support assembly of the stroller frame;

FIG. 8 is a state of the stroller frame with the front legs, rear legs and support assembly collapsed;

FIG. 9 is a perspective view of a seat support member and a push rod assembly of the seat reversing mechanism of the stroller of the present invention;

fig. 10 is an exploded view of the support base, seat support member and push rod assembly of the seat reversing mechanism of the stroller of the present invention;

FIG. 11 is an exploded view of a seat support and push rod assembly of the seat reversing mechanism of the stroller of the present invention;

fig. 12 is a bottom perspective view of the support assembly and the push rod assembly of the seat reversing mechanism of the stroller of the present invention;

figure 13 is an exploded view of the support assembly of the seat reversing mechanism of the stroller of the present invention;

fig. 14 is a perspective view of a rotary plate in the seat reversing mechanism of the stroller of the present invention;

fig. 15 is a perspective view of the seat reversing mechanism of the stroller of the present invention with the third locking structure in a locked state;

fig. 16 is a perspective view of the seat reversing mechanism of the stroller of the present invention with the third locking structure in an unlocked state;

fig. 17 is a cross-sectional view of the seat reversing mechanism of the stroller of the present invention with the third locking structure in an unlocked state;

fig. 18 is a perspective view of a fourth locking structure in the seat reversing mechanism of the stroller of the present invention;

fig. 19 is a cross-sectional view of a fourth locking structure in the seat reversing mechanism of the stroller of the present invention;

fig. 20 is a cross-sectional view of the seat reversing mechanism of the stroller of the present invention with the fourth locking structure locked;

fig. 21 is a perspective view of a locking structure of the seat reversing mechanism of the stroller of the present invention;

fig. 22 is a second perspective view of the locking structure of the seat reversing mechanism of the stroller of the present invention;

fig. 23 is a cross-sectional view of a locking structure in the seat reversing mechanism of the stroller of the present invention;

figure 24 is a perspective view of a seat assembly of the seat reversing mechanism of the stroller of the present invention.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 24, the present invention provides a seat reversing mechanism for a stroller, including a support base 21 capable of being connected to a frame of the stroller, the support base 21 being connected with a seat support 22 capable of rotating in a horizontal plane relative to the support base, two sides of the seat support 22 being rotatably connected with a push rod assembly 3 capable of driving the seat support 22 to rotate in the horizontal plane to reverse the front and back of the seat support 22, the push rod assembly 3 being able to stay at a position including a push position capable of pushing the stroller and a vertical position for driving the seat support 22 to rotate in the horizontal plane, a locking assembly 7 capable of keeping the push rod assembly 3 at the push position when locked is disposed between the push rod assembly 3 and the seat support 22, a transverse shaft 31 capable of locking the seat support 22 and the support base 21 and unlocking the seat support 22 and the support base 21 when the push rod assembly 3 rotates to the vertical position, a control assembly 5 capable of unlocking the seat support 22 and the support base 21 being disposed between the push rod assembly 3, the lower end of the push rod assembly 3 being disposed with the transverse shaft 31 capable of passing through the seat support 22 and following the rotation thereof, the control assembly 5 including a gear 51 disposed on the push rod assembly 21 and a gear rack 21 capable of sliding and engaging with the support base 21.

After unlocking the locking assembly 7, the push rod assembly 3 can be switched between the push position and the vertical position. The utility model discloses the position that push rod assembly 3 on children's shallow frame stops is including pushing away capable position and vertical position, when push rod assembly 3 stops when pushing away capable position, the adult can push away children's shallow frame through push rod assembly 3 and walk forward, when push rod assembly 3 rotates to vertical position forward from pushing away capable position, push rod assembly 3 drives gear 51 and rotates, gear 51 drives rack 52 and slides and breaks away from the unblock with supporting seat 21, the adult can hold vertical position push rod assembly 3 and drive seat support piece 22 rotatory at the horizontal plane direction, when seat support piece 22 is rotatory 180 degrees, seat support piece 22 has just accomplished the front and back switching-over, the last orientation adult who takes of child support piece 22 this moment. Therefore, when the adult operates the seat support 22 to change the direction, only the push rod assembly 3 needs to be rotated forward in the vertical plane direction, so that the push rod assembly 3 moves from the pushing position to the vertical position, and then the push rod assembly 3 is rotated in the horizontal plane direction, thereby being very convenient and fast to operate.

As shown in fig. 14 to 20, the positions where the seat support 22 stays include a forward direction facing forward and a reverse direction facing backward after rotating in the horizontal plane, a third locking structure 53 capable of locking the seat support 22 in the forward direction and a fourth locking structure 54 capable of locking the seat support 22 in the reverse direction are disposed between the rack 52 and the support base 21, and a stop assembly 55 capable of preventing the push rod assembly 3 from rotating forward in the vertical direction is further disposed between the rack 52 and the support base 21. More importantly, the stopping component 55 can prevent the push rod component 3 from continuously rotating forwards when the push rod component is in the vertical position, so that the misoperation that the push rod component 3 rotates forwards due to unbalanced force application when torsion in the horizontal plane direction is applied to the push rod component 3 in the vertical position is avoided, the safety is ensured, and the stopping component 55 also ensures that the push rod component 3 can only rotate backwards to return to the pushing position after the seat support 22 finishes reversing, so that the use reliability of the cart is ensured.

As shown in fig. 14 to 20, the seat supporting member 22 includes a seat body 221 and a rotating plate 222 connected to the seat body 221 and capable of rotating together, and the supporting base 21 is disposed between the seat body 221 and the rotating plate 222. The rotary plate 222 is connected to the seat body 221 through a connecting assembly such as a screw, and when the seat body 221 is pushed to rotate relative to the support base 21, the rotary plate 222 rotates together.

As shown in fig. 14 to 20, the rack 52 includes a rack body 521, the rack body 521 is provided with a plurality of tooth portions 522 capable of meshing with the gear 51, the rack body 521 is provided at front and rear ends thereof with a first protrusion 523 and a second protrusion 524 extending downward, the support base 21 is provided with a first sliding groove 211 capable of allowing the first protrusion 523 to slide in the circumferential direction, and the turntable 222 is further provided with a second sliding groove 2221 allowing the second protrusion 524 to slide in the circumferential direction. The gear 51 is in meshing transmission with the tooth 522, the first sliding slot 211 is provided for the first projection 523 to slide in, the second sliding slot 2221 is provided for the second projection 524 to slide in, and when the first projection 523 slides in the first sliding slot 211 along the circumferential direction, the second projection 524 is located in the second sliding slot 2221 and rotates together with the rotating disc 222 in the horizontal plane direction.

As shown in fig. 14 to 20, the third locking structure 53 includes a first engaging protrusion 531 disposed on the front side of the supporting seat 21, and the first protrusion 523 is provided with a first engaging groove 532, which can allow the first engaging protrusion 523 to engage with and prevent the seat support 22 from rotating in the horizontal plane direction when the seat support 22 is in the forward position; the height of second lug 524 be greater than the height of first lug 523, fourth closure structure 54 including locate the protruding 541 of second joint of supporting seat 21 rear side, first spout 211 on and lie in protruding 523 one side of first joint and be equipped with the undercut and can be for the recess 542 that second lug 524 abduced when rack 52 slides. The height of the second protrusion 524 is greater than that of the first protrusion 523, so that the recess 542 and the first sliding groove 211 form a step arranged up and down. When the seat support 22 is in the forward position and the push rod assembly 3 is in the push position, the rack 52 prevents the seat support 22 from rotating in the horizontal plane direction by the first engaging groove 532 and the first engaging protrusion 531 locking with each other, and the second protrusion 524 is located in the second sliding groove 2221; when the seat support 22 is in the forward position and the push rod assembly 3 is in the vertical position, the rack 52 slides to separate the first engaging protrusion 531 from the first engaging groove 532 on the first protrusion 523, the first protrusion 523 enters the first sliding groove 211, and the second protrusion 524 is still located in the second sliding groove 2221, so that the seat support 22 can rotate and change direction relative to the support base 21.

When the push rod assembly 3 is in the vertical position and the seat support 22 is rotated from the forward position to the reverse position, the rack 52 rotates 180 degrees, the first engaging groove 532 on the first protruding block 523 corresponds to the second engaging protrusion 541, the second protruding block 524 corresponds to the groove 542, and when the seat support 22 is in the reverse position and the push rod assembly 3 is rotated from the vertical position to the pushing position, the rack 52 is driven by the gear 51 to slide relative to the support base 21, the second protruding block 524 slides forward into the groove 542 at the moment, the first engaging groove 532 is engaged with the second engaging protrusion 541, and at the moment, the seat support 22 cannot rotate relative to the support base 21. The recess 542 not only serves to give way for the second protrusion 524, but the walls of the recess 542 can also abut against the second protrusion 524 to prevent rotation of the seat support 22 in the horizontal plane.

As shown in fig. 14 to 20, the groove 542 is provided with a third engaging protrusion 543, the second protrusion 524 is provided with a second engaging groove 544 into which the third engaging protrusion 543 can be inserted, and when the seat support 22 is locked in the reverse direction, the first engaging groove 532 and the second engaging protrusion 541 are engaged and fixed, and the third engaging protrusion 543 and the second engaging groove 544 are engaged and fixed. When the seat supporting member 22 is in the reverse direction and the push rod assembly 3 rotates from the vertical position to the push position, the rack 52 is driven by the gear 51 to slide relative to the supporting seat 21, and at this time, the second protrusion 524 slides forward into the groove 542, so that the second engaging groove 544 is engaged and fixed with the third engaging projection 543, and meanwhile, the first engaging groove 532 is engaged and fixed with the second engaging projection 541, which has a double-locking effect, so that the seat supporting member 22 is more stably connected with the supporting seat 21.

As shown in fig. 14 to 20, the stopping assembly 55 includes a first abutting surface 551 disposed on the supporting seat 21 and capable of abutting against an outer wall of the second protrusion 524 when the supporting seat 22 is in the forward position and the push rod assembly 3 is in the vertical position, and the stopping assembly 55 further includes a second abutting surface 552 disposed on the supporting seat 21 and capable of abutting against an outer wall of the first protrusion 523 when the supporting seat 22 is in the reverse position and the push rod assembly 3 is in the vertical position. When the seat support 22 is in the forward position and the push rod assembly 3 is in the vertical position, the first abutting surface 551 and the second cam 524 abut against each other, and the first abutting surface 551 can prevent the rack 52 from further moving, so that the push rod assembly 3 is prevented from further rotating forwards in the vertical position, and therefore, the seat support is safer. When the seat support 22 is in the reverse orientation and the push rod assembly 3 is in the vertical position, the second abutting surface 552 abuts the first protrusion 523, and the second abutting surface 552 prevents the rack 52 from moving further, thereby preventing the push rod assembly 3 from rotating further forward in the vertical position, which is safer.

As shown in fig. 24, the seat support 22 may be provided with a separate seating assembly 4 for seating, and the seating assembly 4 may be removably or fixedly attached to the seat support 22. The seat assembly 4 comprises a seat portion 41 connected to the support assembly 2, a backrest portion 42 connected to the seat portion 41 and rotatable relative thereto, and an armrest assembly 43 connected to the backrest portion 42 and rotatable relative thereto.

As shown in fig. 9 and fig. 21 to fig. 23, the seat portion 41 is detachably connected to the supporting assembly 2, the seat portion 41 is provided with a plurality of positioning portions 412 protruding downward, the seat supporting member 22 is provided with a plurality of positioning slots 221 capable of positioning and accommodating the positioning portions 412, a locking structure 6 capable of locking the seat portion 41 and the seat supporting member 22 is provided between the seat portion 41 and the seat supporting member 22, the locking structure 6 includes a plurality of sliding slots 61 provided on the seat portion 41, each sliding slot 61 is provided with a first sliding member 62 capable of sliding up and down relative to the sliding slot, the first sliding member 62 is provided with a locking port 63, a first spring 64 for returning the first sliding member 62 is provided between the first sliding member 62 and the seat portion 41, the supporting assembly 2 is provided with a plurality of second sliding members 65 capable of sliding transversely relative to the supporting member, the second sliding member 65 is provided with a locking tongue 651 capable of being locked into the locking port 63, a second spring 66 capable of keeping the latch 651 in a latched state is arranged between the second sliding member 65 and the seat support member 22, the support assembly 2 is further provided with two sliding unlocking bars 67 capable of sliding back and forth relative to the support member, the sliding unlocking bars 67 are provided with pins 68 at intervals and capable of being respectively clamped into the two second sliding members 65, front and rear ends of the sliding unlocking bars 67 are provided with front and rear operating parts 671 and 672 protruding out of the seat support member 22, the sliding unlocking bars 67 are further provided with V-shaped grooves 673 capable of allowing the pins 68 to move inward after the front and rear operating parts 671 and 672 are pressed, the V-shaped grooves 673 are provided with first pressing surfaces 6731 capable of pushing the pins 68 when the front operating part 671 is operated so as to enable the latch 651 on the second sliding member 65 to be separated from the latch opening 63, the V-shaped groove 673 is further provided with a second pressing surface 6732 capable of pushing the pin 68 to disengage the latch 651 of the second sliding member 65 from the latch opening 63 when the rear operating portion 672 is operated. When the seat assembly 4 is detachably connected to the seat support 22 by the seat portion 41 thereon, the positioning portion 412 of the seat portion 41 is aligned with the positioning slot 221 of the seat support 22, and then the seat portion 41 is pressed downward, at which time the positioning portion 412 pushes the latch 651 of the second sliding member 65 to retract the latch 651 into the seat support 22, the second spring 66 is pushed and compressed, the seat portion 41 is slid downward until the latch 651 is aligned with the latch opening 63, the second spring 66 pushes the second sliding member 65 to slide in the opposite direction, at which time the latch 651 is gradually pushed into the latch opening 63, and the first spring 64 is also compressed when the first sliding member 62 is moved downward. When the seat assembly 4 is separated from the support assembly 2 by unlocking the seat portion 41 and the seat support 22, the front operation portion 671 or the rear operation portion 672 is operated, the slide unlocking bar 67 slides forwards or backwards, the first pressing surface 6731 or the second pressing surface 6732 of the V-shaped groove 673 on the slide unlocking bar 67 pushes the latch 68 to slide transversely, the latch 68 drives the second sliding member 65 to slide transversely relative to the seat support 22 during sliding, so that the latch 651 is gradually separated from the latch opening 63, when the latch 651 is separated from the latch opening 63, the first spring 64 is reset, the latch opening 63 is reduced, the latch 651 cannot be clamped into the latch opening 63 even if the latch 651 is transversely reset, and the user can conveniently release hands to take down the seat assembly after releasing the front and rear operation portions. The provision of the V-shaped groove 673 enables an adult to unlock the locking formation 6 both at the front and rear of the frame, thereby facilitating unlocking of the seat assembly 4.

As shown in fig. 10 to 11, the locking assembly 7 includes a left housing 71 disposed on the seat support 22 and a right housing 72 disposed on the push rod assembly 3, an accommodating cavity 73 is defined between the left housing 71 and the right housing 72, spline grooves 74 are disposed in the left housing 71 and the right housing 72, a spline 75 capable of sliding up and down relative to the left housing 71 and the right housing 72 and simultaneously engaging with the spline grooves 74 in the left housing 71 and the right housing 72 is disposed in the accommodating cavity 73, a sliding unlocking member 76 is disposed on the push rod assembly 3, a first cable 77 capable of disengaging the spline 75 from the left housing 71 when the sliding unlocking member 76 slides is disposed between the sliding unlocking member 76 and the spline 75, and a first elastic member 78 capable of resetting the spline 75 is connected between the spline 75 and the right housing 72. When the push rod assembly 3 needs to be rotated, the sliding unlocking part 76 is pulled upwards, at the moment, the sliding unlocking part 76 drives the first cable 77 to move upwards, the first cable 77 pulls the spline 75 to slide transversely, the spline 75 compresses the first elastic part 78 when sliding transversely, meanwhile, the spline 75 is also separated from the spline groove 74 on the left shell 71 and completely enters the right shell 72, at the moment, the rotating push rod assembly 3 can rotate relative to the seat support 22, and the rotating push rod assembly 3 can be folded or rotated to a vertical position by a pushing position.

As shown in fig. 1 to 8, the stroller frame can move to the folding position from the unfolding position after unblock locking device, the stroller frame include foreleg 11 and relative it rotate around first axis a and connect the back leg 12 on foreleg 11, foreleg 11 on be connected with front wheel 111, back leg 12 on be connected with rear wheel 121, 11 upper ends of foreleg rotate around second axis B and be connected with connecting rod 13, connecting rod 13 and back leg 12 between be equipped with and to be connected two pivoted supporting component 2 relatively, 2 front ends of supporting component rotate around third axis C and connect in back leg 12 upper end, 2 rear ends of supporting component rotate around fourth axis D and connect in connecting rod 13 upper end, foreleg 11 and back leg 12 cross arrangement, supporting component 2 on still be connected with push rod assembly 3. When the utility model discloses children's shallow frame need be folding, at first with the locking structure unblock, push rod assembly 3 rotates backward, then upwards mention 12 upper ends of back leg, front leg 11 rotates around first axis A under the action of gravity, connecting rod 13 is driven and rotates at the relative front leg 11 of second axis B department, and connecting rod 13 and front leg 11 meet the position and remove to being close to 2 front positions of supporting component, connecting rod 13 meets the position with supporting component 2 and rotates around fourth axis D and 2 front ends of supporting component rotate around the relative back leg 12 of third axis C, and then on supporting component 2 and push rod assembly 3 drawn close to back leg 12, folding convenient operation, and folding process is smooth and easy. The supporting component 2, the rear legs 12 and the connecting rods 13 are arranged in a triangular shape when being unfolded, so that the supporting is more stable and safer.

As shown in fig. 1 and 6, the locking device includes a first locking structure 14 disposed between the front leg 11 and the rear leg 12 and capable of locking the front leg 11 and the rear leg 12 in the unfolded state, an unlocking member 15 is further connected between the support member 2 and the upper end of the rear leg 12 and capable of rotating relative to the support member and the rear leg to unlock the first locking structure 14, a second locking structure 16 capable of locking the unlocking member 15 and the support member 2 is further disposed between the unlocking member 15 and the support member 2, and when the second locking structure 16 is unlocked, the unlocking member 15 is capable of rotating relative to the support member 2 to unlock the first locking structure 14. When the utility model discloses children's shallow frame need be folded, at first backward rotate push rod subassembly 3 to suitable position, then 16 unblocks of second closure structure, the locking between supporting component 2 and the unblock piece 15 is relieved this moment, mention unblock piece 15 after that, unblock piece 15 relative supporting component 2 rotates and makes the 14 unblocks of first closure structure, and 12 upper ends of back leg are mentioned this moment, preceding leg 11 rotates around first axis A under the action of gravity, connecting rod 13 is driven and rotates at the relative preceding leg 11 of second axis B department, and connecting rod 13 and the position removal of meeting of preceding leg 11 to being close to supporting component 2 front end position, connecting rod 13 and the position that meets of supporting component 2 rotate around fourth axis D and supporting component 2 front end rotates around the relative back leg 12 of third axis C, and then on supporting component 2 and push rod subassembly 3 draw close to back leg 12. The second locking structure 16 locks as a secondary lock to prevent inadvertent operation of the unlocking member 15 to unlock the first locking structure 14.

Claims (10)

1. The utility model provides a seat reversing mechanism of children's shallow which characterized in that: comprises a supporting seat (21) which can be connected to the frame of the children cart, a seat supporting piece (22) which can rotate relative to the supporting seat (21) in the horizontal plane direction is connected on the supporting seat (21), push rod components (3) which can drive the seat supporting piece (22) to rotate in the horizontal plane direction so as to realize the front and back reversing of the seat supporting piece (22) are rotatably connected on two sides of the seat supporting piece (22), the positions where the push rod components (3) can stop comprise a pushing position which can push the cart and a vertical position which is used for driving the seat supporting piece (22) to rotate in the horizontal plane direction, a locking component (7) which can enable the push rod components (3) to be kept in the pushing position when in locking is arranged between the push rod components (3) and the seat supporting piece (22), push rod subassembly (3), seat support piece (22) and supporting seat (21) three between still be equipped with and to lock seat support piece (22) and supporting seat (21) and enable control assembly (5) of seat support piece (22) and supporting seat (21) unblock when push rod subassembly (3) rotate to vertical position, push rod subassembly (3) lower extreme be equipped with and transversely wear to establish seat support piece (22) and can follow its pivoted transverse axis (31), control assembly (5) including locating gear (51) on transverse axis (31), supporting seat (21) on be connected with gear (51) meshing and at push rod subassembly (3) And a rack (52) which can slide relative to the support base (21) during rotation and is clamped and locked or unlocked with the support base (21).

2. The seat reversing mechanism for a stroller according to claim 1, wherein: the seat support piece (22) stay position include forward position and the backward position of orientation back after the horizontal plane direction is rotatory towards the place of orientation, rack (52) and supporting seat (21) between be equipped with can lock seat support piece (22) in the third closure structure (53) of forward position and can lock seat support piece (22) in the fourth closure structure (54) of backward position, rack (52) and supporting seat (21) between still be equipped with and can prevent push rod assembly (3) forward pivoted backstop subassembly (55) in vertical position.

3. The seat reverser mechanism for a stroller according to claim 2, wherein: the seat supporting piece (22) comprises a seat body (221) and a rotating disc (222) which is connected with the seat body (221) and can rotate together, and the supporting seat (21) is arranged between the seat body (221) and the rotating disc (222).

4. The seat reversing mechanism for a stroller according to claim 3, wherein: the rack (52) comprises a rack body (521), a plurality of tooth parts (522) capable of being meshed with the gear (51) are arranged on the rack body (521), a first protruding block (523) and a second protruding block (524) extending downwards are arranged at the front end and the rear end of the rack body (521), a first sliding groove (211) capable of allowing the first protruding block (523) to slide in the circumferential direction is formed in the supporting seat (21), and a second sliding groove (2221) capable of allowing the second protruding block (524) to slide in the front-rear direction is further formed in the rotary disc (222).

5. The seat reverser mechanism for a stroller according to claim 4, wherein: the third locking structure (53) comprises a first clamping protrusion (531) arranged on the front side of the supporting seat (21), and a first clamping groove (532) which can be used for clamping the first clamping protrusion (531) when the seat support (22) is in the positive position so as to prevent the seat support (22) from rotating in the horizontal plane direction is arranged on the first convex block (523);

the height of second lug (524) be greater than the height of first lug (523), fourth closure structure (54) including locate supporting seat (21) rear side and can be in the fixed second joint arch (541) of first draw-in groove (532) joint when reverse position in seat support piece (22), first spout (211) on and lie in first joint arch (531) one side and be equipped with undercut and can be for recess (542) that second lug (524) abdicate when rack (52) slide.

6. The seat reversing mechanism for a stroller according to claim 5, wherein: recess (542) on be equipped with third joint arch (543), second lug (524) on be equipped with second draw-in groove (544) that can supply the protruding (543) card of third joint to go into, and when seat support piece (22) by the locking in reverse when first draw-in groove (532) fixed just with the protruding (541) joint of second joint third joint arch (543) fixed with second draw-in groove (544) joint.

7. The seat reverser mechanism for a stroller according to claim 4, wherein: the stop assembly (55) comprises a first abutting surface (551) which is arranged on the supporting seat (21) and can abut against the outer wall of the second bump (524) when the seat support member (22) is in the forward direction and the push rod assembly (3) is in the vertical position, and the stop assembly (55) further comprises a second abutting surface (552) which is arranged on the supporting seat (21) and can abut against the outer wall of the first bump (523) when the seat support member (22) is in the reverse direction and the push rod assembly (3) is in the vertical position.

8. The seat reversing mechanism for a stroller according to claim 1, wherein: the seat support member (22) is provided with a seat assembly (4) for sitting, the seat assembly (4) comprises a seat part (41) connected to the support assembly (2), the seat part (41) is connected with a backrest part (42) capable of rotating relative to the seat part, and the backrest part (42) is connected with an armrest assembly (43) capable of rotating relative to the backrest part.

9. The seat reverser mechanism for a stroller according to claim 8, wherein: seat portion (41) detachably connect on support assembly (2), just seat portion (41) and support assembly (2) between be equipped with and be equipped with locking structure (6) that can lock the two, seat portion (41) on be equipped with kayser mouth (63), support assembly (2) on be equipped with a plurality of second slider (65) that can transversely slide rather than it, second slider (65) on be equipped with can block in kayser mouth (63) latch tongue (651), second slider (65) and support assembly (2) between be equipped with and make latch tongue (651) keep the second spring (66) of kayser state, support assembly (2) on still be equipped with two slip unlocking strips (67) that can slide around rather than, slip unlocking strip (67) on the interval be equipped with and can block in two second slider (65) respectively and drive latch tongue (651) and break away from kayser mouth (63) when slip unlocking strip (67).

10. The seat reversing mechanism for a stroller according to claim 9, wherein: the front end and the rear end of the sliding unlocking bar (67) are provided with a front operation part (671) and a rear operation part (672) which protrude out of the supporting component (2), and the sliding unlocking bar (67) is also provided with a V-shaped groove (673) which can enable the bolt (68) to move after the front operation part (671) and/or the rear operation part (672) is pressed and operated so as to enable the latch bolt (651) to be separated from the latch opening (63).

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