CN115384598A - Foldable and expandable baby carriage and folding method thereof - Google Patents
Foldable and expandable baby carriage and folding method thereof Download PDFInfo
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- CN115384598A CN115384598A CN202211233683.6A CN202211233683A CN115384598A CN 115384598 A CN115384598 A CN 115384598A CN 202211233683 A CN202211233683 A CN 202211233683A CN 115384598 A CN115384598 A CN 115384598A
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- shaft sleeve
- locking
- backrest
- locking piece
- seat plate
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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
- B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
- B62B7/086—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis becoming smaller in all three dimensions
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The invention relates to the technical field of a baby carriage, in particular to a foldable and unfoldable baby carriage; the upper part of the baby carriage comprises a backrest, a seat board and handrails, after the baby carriage is unlocked, the backrest and the seat board can be folded and unfolded, and the seat board and the handrails can be folded and unfolded only by rotating the backrest, so that the backrest, the seat board and the handrails can be gradually and sequentially folded or unfolded; the lower part includes the push rod, the bedplate, fore-stock and after-poppet, and this perambulator need fold bedplate and fore-stock earlier with push rod and bedplate unblock when folding again for push rod, bedplate, progressively fold in proper order or expand between fore-stock and the after-poppet, through progressively folding in proper order or the mode that expands, improved the stability and the security of perambulator.
Description
Technical Field
The invention relates to the technical field of a baby carriage, in particular to a foldable and unfoldable baby carriage and a folding method thereof.
Background
The baby carriage is a tool carriage which is designed for providing convenience for outdoor activities of babies, is a favorite walking vehicle for babies, and is a necessary product for mothers to take babies to shop on the street, and the baby carriage is mostly designed to be foldable and unfolded and is convenient to carry.
However, in the prior art, the folding joint of the stroller is only locked and unlocked in a primary mode, when the stroller inadvertently touches the unlocking device during use, the stroller directly enters the unlocked state, and the stroller cannot bear the weight of the baby and directly enters the folded state, which is very dangerous for the small baby.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a foldable stroller, wherein the folding joints of the stroller can be gradually and sequentially folded or unfolded, and after being inadvertently unlocked during use, the stroller will not immediately enter the folded state, and can still bear the weight of the baby, thereby improving the stability and safety of the stroller.
In order to achieve the purpose, the invention adopts the following technical scheme:
a collapsible and expandable stroller, the stroller comprising an upper portion and a lower portion; the upper part comprises a backrest, a seat board and armrests; the backrest locking mechanism comprises a backrest, a backrest shaft sleeve, a backrest clamping groove, a first locking piece and a second locking piece, wherein the backrest shaft sleeve is arranged on each of two sides of the lower end of the backrest; a first pushing assembly for pushing the first locking piece is further arranged in the backrest clamping groove; a seat board shaft sleeve is respectively arranged at two sides above the tail end of the seat board, the seat board shaft sleeve covers the outer side of the backrest shaft sleeve, and a seat board clamping groove for the first locking piece to slide is arranged in the seat board shaft sleeve; the two sides of the lower end of the armrest are respectively provided with an armrest shaft sleeve, the armrest shaft sleeves cover the outer sides of the seat plate shaft sleeves, an armrest clamping groove is formed in each armrest shaft sleeve, a second locking piece is clamped in each armrest clamping groove and can slide along each armrest clamping groove, and each second locking piece can be clamped with or separated from the seat plate shaft sleeve; and a second pushing piece is also arranged on the backrest shaft sleeve, penetrates through the first locking piece and the seat plate shaft sleeve and is matched with the second locking piece to form a structure capable of being combined and separated.
The lower part comprises a push rod, a front bracket and a rear bracket; the lower end of the push rod is provided with a push rod shaft sleeve which is symmetrical on two sides, the center of the push rod shaft sleeve is sleeved with a main shaft in a penetrating mode, a push rod clamping groove is formed in the push rod shaft sleeve, a third locking piece is clamped in the push rod clamping groove, and the third locking piece can slide along the push rod clamping groove; a locking column is fixed on the third locking piece; a third pushing piece for pushing a third locking piece is further arranged in the push rod clamping groove; a lower seat plate shaft sleeve is respectively arranged at two sides below the tail end of the seat plate, the lower seat plate shaft sleeves are positioned at two sides of the push rod shaft sleeve, and a seat plate locking piece is fixed at the inner side of each lower seat plate shaft sleeve; a front bracket shaft sleeve is respectively arranged on two sides of the upper end of the front bracket, the front bracket shaft sleeve covers the outer side of the shaft sleeve of the lower seat plate, and a front bracket clamping groove is arranged on the outer side of the front bracket shaft sleeve; a front support locking piece is arranged on the inner side of the seat plate locking piece, the front support locking piece is sleeved on the main shaft, and the front support locking piece is fixed with the front support shaft sleeve; when the baby carriage is in a locking state, the locking column simultaneously penetrates through the seat plate locking piece and the front support locking piece; a rear bracket shaft sleeve is respectively arranged on two sides of the upper end of the rear bracket, the rear bracket shaft sleeve covers the outer side of the front bracket shaft sleeve, a rear bracket clamping groove is arranged on the inner side of the rear bracket shaft sleeve, a rear bracket locking piece is clamped in the rear bracket clamping groove, and the rear bracket locking piece can slide along the rear bracket clamping groove; when the rear support locking piece is simultaneously clamped with the front support clamping groove and the rear support clamping groove, the front support and the rear support are in a locking state; a second seat plate clamping groove is further formed in the outer side of the lower seat plate shaft sleeve, a fourth pushing piece is arranged in the second seat plate clamping groove, and the fourth pushing piece and the second seat plate clamping groove are matched with each other to form a rotatable and separable structure; the pushing end of the fourth pushing piece penetrates through the front bracket shaft sleeve to be propped against the rear bracket locking piece.
Preferably, the first pushing assembly comprises a backrest ratchet with a curved inclined surface on the upper surface, a first driving piece, a first lifting piece and a first traction cable; the backrest ratchet is rotationally arranged on the bottom wall of the backrest shaft sleeve; a first ratchet groove is arranged on the first driving piece, and the first ratchet groove and the backrest ratchet are mutually matched to form a meshing structure capable of rotating and clutching; a wire groove is formed in the outer wall of the first driving piece, and a clamping hole is formed in the end point of the wire groove; the first lifting piece is arranged on the backrest, and two traction holes are arranged on the first lifting piece in parallel; one end of the first traction cable is clamped in the clamping hole, and the other end of the first traction cable is clamped in the traction hole.
Preferably, a first elastic piece is further arranged in the seat plate clamping groove; when the seat board and the backrest are in a locking state, the first locking piece is simultaneously clamped with the seat board clamping groove and the backrest clamping groove under the action of the first elastic piece.
Preferably, the second pushing piece is cylindrical, and a second ratchet is protruded from the upper end of the second pushing piece; a second ratchet groove is arranged on the second locking piece; the second ratchet teeth and the second ratchet tooth grooves are mutually matched to form a meshing structure capable of rotating and disengaging.
Preferably, a third ratchet groove is arranged on the third locking piece, and a third ratchet is arranged on the third pushing piece; the third ratchet teeth and the third ratchet tooth grooves are mutually matched to form a structure capable of being relatively and slidably combined and separated.
Preferably, a first elastic piece is further arranged in the push rod clamping groove; when the seat support is in a locking state, the locking column passes through the seat plate locking piece and the front support locking piece simultaneously under the action of the first elastic piece.
Preferably, a hollow push rod part is further arranged above the push rod shaft sleeve, a push block is arranged in the push rod part, and the push block can slide along the push rod part; and a driving block is fixed at the upper end of the third pushing piece and is propped against the lower end of the pushing block.
Preferably, a fourth ratchet slot is disposed on said fourth pusher; a fourth ratchet is fixed in the second seat plate clamping groove; the fourth ratchet groove and the fourth ratchet are mutually matched to form a meshing structure capable of rotating to be disengaged.
Preferably, the seat plate comprises a seat part and a rotating part, the seat part is sleeved on the rotating part, a transverse groove is arranged on the seat part, a longitudinal groove is alternately arranged on the transverse groove, a rotary table locking block capable of sliding along the transverse groove is arranged in the transverse groove, and a locking inclined surface is arranged on the upper surface of the rotary table locking block; a locking driving block which can slide along the longitudinal groove is arranged in the longitudinal groove, a driving inclined plane is arranged on the lower surface of the locking driving block, the locking inclined plane and the driving inclined plane are matched with each other to form a structure capable of sliding to be combined and separated, and one end of the locking driving block is connected with a turntable traction cable; and a rotary table locking groove which can be clamped with the rotary table locking block is arranged on the side surface of the seat part.
The invention further discloses a folding method of the foldable and unfoldable baby carriage, which comprises the following steps:
1) Firstly, rotating the seat part to ensure that the backrest is rightly arranged;
2) Unlocking the backrest and the seat plate;
3) After the folding backrest is rotated, the seat board and the armrests are unlocked;
4) The folding handrail is rotated to enable the upper part of the baby carriage to be completely folded;
5) Unlocking the push rod, the seat plate and the front support;
6) Rotating the folding seat board and the front support to unlock the front support and the rear support;
7) The folding push rod and the rear support are rotated, so that the lower part of the baby carriage is completely folded.
The foldable baby carriage adopting the technical scheme has the advantages that:
the upper part of the baby carriage comprises a backrest, a seat board and handrails, after the baby carriage is unlocked, the backrest and the seat board can be folded and unfolded, and the seat board and the handrails can be folded and unfolded only by rotating the backrest, so that the backrest, the seat board and the handrails can be gradually and sequentially folded or unfolded; the lower part includes the push rod, the bedplate, fore-stock and after-poppet, and this perambulator need fold bedplate and fore-stock earlier with push rod and bedplate unblock when folding again for push rod, bedplate, progressively fold in proper order or expand between fore-stock and the after-poppet, through progressively folding in proper order or the mode that expands, improved the stability and the security of perambulator.
Drawings
Fig. 1 is a schematic view showing an overall structure of a foldable and expandable stroller.
Fig. 2 is a schematic view of the upper part of the structure of fig. 1.
Fig. 3 is an exploded view of the folding joint of fig. 2.
Fig. 4 is a schematic view of the lower part of fig. 1.
Fig. 5 is a schematic view of a backrest bushing structure.
Fig. 6 is a schematic view of the lower seat shaft sleeve structure.
Fig. 7 is a schematic structural view of the first driving member.
Fig. 8 is a schematic structural view of the first lifting member.
Fig. 9 is a structural schematic view of the second locking member.
Fig. 10 is an exploded view of the putter sleeve portion.
Fig. 11 is a schematic view of a rear bracket shaft sleeve structure.
Fig. 12 is a schematic view of a rear bracket locking member structure.
FIG. 13 is a schematic view of a front carrier lock and front carrier sleeve configuration.
Fig. 14 is a schematic view of the seat structure.
Fig. 15 is a schematic view of the rotating part structure.
Fig. 16 is a schematic view of a turret locking block structure.
Fig. 17 is a schematic view of a lock driving block structure.
Detailed Description
As shown in fig. 1,2,3,5, a collapsible and expandable stroller, the stroller comprising an upper portion and a lower portion; the upper part comprises a backrest 1, a seat board 2 and armrests 3; two sides of the lower end of the backrest 1 are respectively provided with a backrest shaft sleeve 11, a backrest clamping groove 12 is arranged in each backrest shaft sleeve 11, a first locking piece 13 is clamped in each backrest clamping groove 12, and each first locking piece 13 can slide along each backrest clamping groove 12; a first pushing assembly 14 for pushing the first locking piece 13 is further arranged in the backrest clamping groove 12; a seat plate shaft sleeve 21 is respectively arranged on two sides above the tail end of the seat plate 2, the seat plate shaft sleeve 21 covers the outer side of the backrest shaft sleeve 11, and a seat plate clamping groove 22 for allowing the first locking piece 13 to slide is arranged in the seat plate shaft sleeve 21. When back 1 and bedplate 2 are in the locking state of expansion, first locking piece 13 simultaneously with back draw-in groove 12 and bedplate draw-in groove 22 looks block, mutual fixed can't fold between back 1 and the bedplate 2 this moment, when the first push assembly 14 of drive for first locking piece 13 enters into bedplate draw-in groove 22 completely, and first locking piece 13 breaks away from each other with back draw-in groove 12 this moment, can rotate relatively between back 1 and the bedplate 2 and carry out angle adjustment or folding.
The two sides of the lower end of the armrest 3 are respectively provided with an armrest shaft sleeve 31, the armrest shaft sleeve 31 covers the outer side of the seat plate shaft sleeve 21, an armrest clamping groove 32 is arranged in the armrest shaft sleeve 31, a second locking piece 33 is clamped in the armrest clamping groove 32, the second locking piece 33 can slide along the armrest clamping groove 32, and the second locking piece 33 can be clamped with or separated from the seat plate shaft sleeve 21; the backrest bushing 11 is further provided with a second pushing member 15, and the second pushing member 15 penetrates through the first locking piece 13 and the seat plate bushing 21 to be matched with the second locking piece 33 into a structure capable of being disengaged. When the armrest 3 and the seat plate 2 are in the unfolded and locked state, the second locking member 33 is engaged with the seat plate shaft sleeve 21, and at this time, the armrest 3 and the seat plate 2 are fixed to each other and cannot be folded, and when the second pushing member 15 is driven, the second locking member 33 completely enters the armrest clamping groove 32, at this time, the second locking member 33 is disengaged from the seat plate shaft sleeve 21, and at this time, the armrest 3 and the seat plate 2 can rotate relatively.
As shown in fig. 1,4,6,10, 13, the lower portion includes the push rod 4, the front bracket 5 and the rear bracket 6; a push rod shaft sleeve 41 with two symmetrical sides is arranged at the lower end of the push rod 4, a main shaft 42 is sleeved in the center of the push rod shaft sleeve 41 in a penetrating manner, a push rod clamping groove 43 is arranged in the push rod shaft sleeve 41, a third locking piece 44 is clamped in the push rod clamping groove 43, and the third locking piece 44 can slide along the push rod clamping groove 43; a locking post 441 is fixed on the third locking piece 44; a third pushing piece 45 for pushing the third locking piece 44 is also arranged in the push rod clamping groove 43; a lower seat plate shaft sleeve 201 is respectively arranged on two sides below the tail end of the seat plate 2, the lower seat plate shaft sleeves 201 are positioned on two sides of the push rod shaft sleeve 41, and a seat plate locking piece 202 is fixed on the inner side of each lower seat plate shaft sleeve 201; two sides of the upper end of the front bracket 5 are respectively provided with a front bracket shaft sleeve 51, the front bracket shaft sleeve 51 covers the outer side of the lower seat plate shaft sleeve 201, and a front bracket clamping groove 52 is arranged on the outer side of the front bracket shaft sleeve 51; a front bracket locking piece 53 is arranged on the inner side of the seat plate locking piece 202, the front bracket locking piece 53 is sleeved on the main shaft 42, and the front bracket locking piece 53 is fixed with the front bracket shaft sleeve 51. When the stroller is in the locked state, the locking post 441 passes through both the seat plate lock 202 and the front bracket lock 53; the seat plate 2 is fixed with the seat plate locking piece 202, and the front bracket 5 is fixed with the front bracket locking piece 53, so that the push rod 4, the seat plate 2 and the front bracket 5 are locked and cannot rotate relatively; when the third pushing element 45 is driven to slide the third locking element 44 along the push rod groove 43 into the push rod bushing 41, and the locking post 441 exits from the seat plate locking element 202 and the front bracket locking element 53, the push rod 4, the seat plate 2 and the front bracket 5 are in an unlocked state.
As shown in fig. 4, 11,12, a rear bracket shaft sleeve 61 is disposed on each of two sides of the upper end of the rear bracket 6, the rear bracket shaft sleeve 61 covers the outer side of the front bracket shaft sleeve 51, a rear bracket locking groove 62 is disposed on the inner side of the rear bracket shaft sleeve 61, a rear bracket locking piece 63 is clamped in the rear bracket locking groove 62, and the rear bracket locking piece 63 can slide along the rear bracket locking groove 62. When the rear holder locking piece 63 is engaged with the front holder locking piece 52 and the rear holder locking piece 62, the front holder 5 and the rear holder 6 are in a locked state.
As shown in fig. 6, a second seat plate clamping groove 204 is further arranged on the outer side of the lower seat plate shaft sleeve 201, a fourth pushing member 205 is arranged in the second seat plate clamping groove 204, and the fourth pushing member 205 and the second seat plate clamping groove 204 are mutually matched to form a structure capable of rotating and disengaging; the pushing end of the fourth pusher 205 passes through the front carrier hub 51 and bears against the rear carrier locking member 63. Since the pushing end of the fourth pushing element 205 passes through the front bracket shaft sleeve 51, the fourth pushing element 205 and the front bracket shaft sleeve 51 cannot rotate relatively, so that in the process of relative rotation and folding between the seat plate 2 and the front bracket 5, the fourth pushing element 205 can rotate relatively with the second seat plate clamping groove 204, and the fourth pushing element 205 can move along the second seat plate clamping groove 204 in the direction of separating from the second seat plate clamping groove 204, so that the pushing end of the fourth pushing element 205 pushes the rear bracket locking piece 63 to slide along the rear bracket clamping groove 62, and the rear bracket locking piece 63 is separated from the front bracket clamping groove 52, and at this time, the rear bracket 6 and the front bracket 5 can rotate and fold.
As shown in fig. 5,7,8, the first pushing assembly 14 includes a backrest ratchet 141 having a curved ramp upper surface, a first driving member 142, a first pulling member 145 and a first pulling cable 147; a back ratchet 141 is rotatably disposed on the bottom wall of the back boss 11; a first ratchet groove 143 is disposed on the first driving member 142, and the first ratchet groove 143 and the back ratchet 141 cooperate with each other to form a rotatable engaging structure; a line groove 143 is formed on the outer wall of the first driving member 142, and a clamping hole 144 is formed at the end point of the line groove 143; the first lifting piece 145 is arranged on the backrest 1, and two traction holes 146 are arranged on the first lifting piece 145 in parallel; one end of the first traction cable 147 is caught in the catching hole 144 and the other end is caught in the traction hole 146. The first pulling member 145 is pulled to pull the first pulling cable 147, the first pulling cable 147 drives the first driving member 142 to rotate, the first driving member 142 is matched with the backrest ratchet 141 to move in a direction away from the backrest ratchet 141, the first locking member 13 is pushed into the seat plate slot 22 completely, and the seat plate 2 and the backrest 1 are unlocked.
A first elastic piece is arranged in the seat plate clamping groove 22; when the seat plate 2 and the backrest 1 are in a locked state, the first locking member 13 is simultaneously engaged with the seat plate engaging groove 22 and the backrest engaging groove 12 under the action of the first elastic member. When the seat plate 2 and the backrest 1 are in an unlocked state, the first locking piece 13 is separated from the seat plate clamping groove 22, and when the first locking piece 13 is restored to a state of being simultaneously clamped with the seat plate clamping groove 22 and the backrest clamping groove 12 under the action of the first elastic piece, the seat plate 2 and the backrest 1 are restored to a locked state.
As shown in 3,5,9, the second pushing member 15 is cylindrical, and a second ratchet 17 protrudes from the upper end of the second pushing member 15; a second ratchet groove 37 is arranged on the second locking piece 33; the second ratchet teeth 17 and the second ratchet grooves 37 cooperate with each other to form a rotatable engaging structure. The backrest 1 is rotated, and the second push assembly 15 rotates along with the backrest 1. Thereby enabling the second locking member 33 and the second pushing assembly 15 to rotate relatively, under the cooperation of the second ratchet 17 and the second ratchet groove 37, the second locking member 33 slides along the handle slot 32, so that the second locking member 33 is disengaged from the seat plate shaft sleeve 21, and the handle 3 and the seat plate 2 are unlocked and can rotate relatively.
As shown in fig. 10,13, a third ratchet groove 442 is disposed on the third locking member 44, and a third ratchet 451 is disposed on the third pushing member 45; the third ratchet teeth 451 and the third ratchet grooves 442 cooperate to form a structure capable of sliding relatively. When the third pushing member 45 is pushed, the third pushing member 45 slides relative to the third locking member 44, and the third ratchet 451 and the third ratchet slot 442 separate from each other during the sliding process, so that the third locking member 44 slides along the push rod slot 43 toward the push rod sleeve 41, and the locking post 441 exits from the seat plate locking member 202 and the front bracket locking member 53, and the push rod 4, the seat plate 2, and the front bracket 5 enter an unlocked state.
A first elastic member is further disposed in the push rod slot 43. When the seat bracket is in the locked state, the locking post 441 is simultaneously passed through the seat pan locking member 202 and the front bracket locking member 53 by the first elastic member.
As shown in fig. 10, a hollow push rod portion 46 is further disposed above the push rod sleeve 41, a push block 47 is disposed in the push rod portion 46, and the push block 47 can slide along the push rod portion 46; the upper end of the third pushing member 45 is fixed with a driving block 452, and the driving block 452 is pressed against the lower end of the pushing block 47. When folding, the pushing rod 4 is pushed first, and then the pushing block 47 is pushed, and then the driving block 452 is pushed, so that the third pushing member 45 slides relative to the third locking member 44.
As shown in fig. 6, a fourth ratchet slot 2051 is disposed on the fourth pusher 205; a fourth ratchet 2061 is fixed in the second seat plate clamping groove 204; fourth ratchet grooves 2051 and fourth ratchet teeth 2061 cooperate with each other to form a rotatably disengageable engagement structure. When the fourth pushing member 205 and the second seat plate notch 204 are relatively rotated, the fourth ratchet 2061 and the fourth ratchet slot 2051 are rotatably engaged, so that the fourth pushing member 205 moves in a direction of disengaging the fourth ratchet 2061.
As shown in fig. 14,15,16,17, the seat plate 2 comprises a seat portion 209 and a rotating portion 208, the seat portion 209 is sleeved on the rotating portion 209, a transverse groove 2091 is arranged on the seat portion 209, a longitudinal groove 2092 is crosswise arranged on the transverse groove 2091, a rotary table locking block 2093 capable of sliding along the transverse groove 2091 is arranged in the transverse groove 2091, and a locking inclined surface 2094 is arranged on the upper surface of the rotary table locking block 2093; a locking driving block 2095 which can slide along the longitudinal groove 2092 is arranged in the longitudinal groove 2092, a driving inclined surface 2096 is arranged on the lower surface of the locking driving block 2095, the locking inclined surface 2094 and the driving inclined surface 2096 are mutually matched to form a structure capable of sliding and separating, and one end of the locking driving block 2095 is connected with a rotary table traction cable; a turntable locking groove 2081 engageable with the turntable locking block 2093 is disposed on a side surface of the seat portion 208. When the seat portion 209 and the rotating portion 208 are locked, the turntable locking block 2093 is inserted into the turntable locking groove 2081, the turntable pulling cable is pulled, the locking driving block 2095 is pulled, the turntable locking block 2093 is withdrawn from the turntable locking groove 2081 under the matching of the locking inclined surface 2094 and the driving inclined surface 2096, and the seat portion 209 and the rotating portion 208 are unlocked and can rotate relatively.
The folding step of the foldable and expandable baby carriage comprises the following steps:
1) Firstly, the seat 209 is rotated to make the backrest 1 swing;
2) Unlocking the backrest 1 and the seat plate 2;
3) After the folding backrest 1 is rotated, the seat board 2 and the handrail 3 are unlocked;
4) The folding handrail 3 is rotated to enable the upper part of the baby carriage to be completely folded;
5) Unlocking the push rod 4 with the seat plate 2 and the front bracket 5;
6) The folding seat board 2 and the front bracket 5 are rotated, so that the front bracket 5 and the rear bracket 6 are unlocked;
7) The folding push rod 4 and the rear support 6 are rotated so that the lower part of the stroller is completely folded.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention, including any reference to the above-mentioned embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A foldable and unfoldable baby carriage comprises a backrest (1), a seat plate (2), a handrail (3), a push rod (4), a front bracket (5) and a rear bracket (6); it is characterized in that the preparation method is characterized in that,
two sides of the lower end of the backrest (1) are respectively provided with a backrest shaft sleeve (11), a backrest clamping groove (12) is arranged in the backrest shaft sleeve (11), a first locking piece (13) is clamped in the backrest clamping groove (12), and the first locking piece (13) can slide along the backrest clamping groove (12); a first pushing assembly (14) for pushing the first locking piece (13) is further arranged in the backrest clamping groove (12);
a seat board shaft sleeve (21) is respectively arranged on two sides above the tail end of the seat board (2), the seat board shaft sleeve (21) covers the outer side of the backrest shaft sleeve (11), and a seat board clamping groove (22) for the first locking piece (13) to slide is arranged in the seat board shaft sleeve (21);
the two sides of the lower end of the armrest (3) are respectively provided with an armrest shaft sleeve (31), the armrest shaft sleeves (31) cover the outer side of the seat plate shaft sleeve (21), an armrest clamping groove (32) is arranged in each armrest shaft sleeve (31), a second locking piece (33) is clamped in each armrest clamping groove (32), each second locking piece (33) can slide along each armrest clamping groove (32), and each second locking piece (33) can be clamped with or separated from the seat plate shaft sleeve (21);
the backrest shaft sleeve (11) is also provided with a second pushing piece (15), and the second pushing piece (15) penetrates through the first locking piece (13) and the seat plate shaft sleeve (21) to be matched with the second locking piece (33) to form a structure capable of being separated and combined;
the lower end of the push rod (4) is provided with a push rod shaft sleeve (41) with two symmetrical sides, the center of the push rod shaft sleeve (41) is sleeved with a main shaft (42) in a penetrating manner, a push rod clamping groove (43) is formed in the push rod shaft sleeve (41), a third locking piece (44) is clamped in the push rod clamping groove (43), and the third locking piece (44) can slide along the push rod clamping groove (43); a locking column (441) is fixed on the third locking piece (44); a third pushing piece (45) for pushing a third locking piece (44) is further arranged in the push rod clamping groove (43); a lower seat plate shaft sleeve (201) is respectively arranged on two sides below the tail end of the seat plate (2), the lower seat plate shaft sleeves (201) are positioned on two sides of the push rod shaft sleeve (41), and a seat plate locking piece (202) is fixed on the inner side of each lower seat plate shaft sleeve (201);
two sides of the upper end of the front support (5) are respectively provided with a front support shaft sleeve (51), the front support shaft sleeves (51) cover the outer side of the lower seat plate shaft sleeve (201), and front support clamping grooves (52) are arranged on the outer side of the front support shaft sleeves (51); a front support locking piece (53) is arranged on the inner side of the seat plate locking piece (202), the front support locking piece (53) is sleeved on the main shaft (42), and the front support locking piece (53) is fixed with the front support shaft sleeve (51);
when the stroller is in the locked state, the locking post (441) passes through the seat plate locking piece (202) and the front bracket locking piece (53) simultaneously; the rear support structure is characterized in that a rear support shaft sleeve (61) is respectively arranged on two sides of the upper end of the rear support (6), the rear support shaft sleeve (61) covers the outer side of the front support shaft sleeve (51), a rear support clamping groove (62) is arranged on the inner side of the rear support shaft sleeve (61), a rear support locking piece (63) is clamped in the rear support clamping groove (62), and the rear support locking piece (63) can slide along the rear support clamping groove (62); when the rear support locking piece (63) is simultaneously clamped with the front support clamping groove (52) and the rear support clamping groove (62), the front support (5) and the rear support (6) are in a locking state; a second seat plate clamping groove (204) is further formed in the outer side of the lower seat plate shaft sleeve (201), a fourth pushing piece (205) is arranged in the second seat plate clamping groove (204), and the fourth pushing piece (205) and the second seat plate clamping groove (204) are mutually matched to form a structure capable of rotating and combining; the pushing end of the fourth pushing piece (205) passes through the front bracket shaft sleeve (51) and is pressed against the rear bracket locking piece (63).
2. The stroller of claim 1, wherein the first push assembly (14) comprises a backrest ratchet (141) having a curved ramp upper surface, a first drive member (142), a first pull member (145) and a first pull cable (147); a backrest ratchet (141) is rotatably arranged on the bottom wall of the backrest sleeve (11); a first ratchet groove (143) is arranged on the first driving piece (142), and the first ratchet groove (143) and the backrest ratchet (141) are mutually matched to form a meshing structure capable of rotating and clutching; a line groove (143) is formed in the outer wall of the first driving piece (142), and a clamping hole (144) is formed at the end point of the line groove (143); the first lifting piece (145) is arranged on the backrest (1), and two traction holes (146) are arranged on the first lifting piece (145) in parallel; one end of the first traction cable (147) is clamped in the clamping hole (144), and the other end of the first traction cable is clamped in the traction hole (146).
3. A foldable and unfoldable stroller according to claim 1, characterized in that a first elastic member is further arranged in the seat plate slot (22); when the seat board (2) and the backrest (1) are in a locking state, the first locking piece (13) is clamped with the seat board clamping groove (22) and the backrest clamping groove (12) simultaneously under the action of the first elastic piece.
4. A pushchair according to claim 1, wherein said second push member (15) is cylindrical, and the upper end of the second push member (15) protrudes with a second ratchet (17); a second ratchet groove (37) is arranged on the second locking piece (33); the second ratchet (17) and the second ratchet groove (37) are mutually matched to form a meshing structure capable of being rotated and disengaged.
5. A pushchair according to claim 1, wherein a third ratchet slot (442) is arranged on the third locking member (44), and a third ratchet tooth (451) is arranged on the third pusher (45); the third ratchet teeth (451) and the third ratchet grooves (442) are mutually matched to form a structure capable of being relatively and slidably combined and separated.
6. A pushchair according to claim 1, wherein a first resilient member is arranged in said push bar slot (43); when the seat bracket is in a locked state, the locking column (441) passes through the seat plate locking piece (202) and the front bracket locking piece (53) simultaneously under the action of the first elastic piece.
7. A foldable and unfoldable baby carriage as claimed in claim 1, characterized in that a hollow push rod portion (46) is arranged above the push rod sleeve (41), a push block (47) is arranged in the push rod portion (46), and the push block (47) can slide along the push rod portion (46); and a driving block (452) is fixed at the upper end of the third pushing piece (45), and the driving block (452) is propped against the lower end of the pushing piece (47).
8. A foldable and unfoldable stroller according to claim 1, characterized in that a fourth ratchet slot (2051) is arranged on said fourth push member (205); a fourth ratchet (2061) is fixed in the second seat plate clamping groove (204); the fourth ratchet groove (2051) and the fourth ratchet (2061) are mutually matched to form a meshing structure capable of rotating and disengaging.
9. A foldable and expandable stroller according to claim 1, wherein the seat plate (2) comprises a seat portion (209) and a rotating portion (208), the seat portion (209) is sleeved on the rotating portion (209), a transverse groove (2091) is arranged on the seat portion (209), a longitudinal groove (2092) is arranged on the transverse groove (2091) in a crossed manner, a turntable locking block (2093) capable of sliding along the transverse groove (2091) is arranged in the transverse groove (2091), and a locking inclined surface (2094) is arranged on the upper surface of the turntable locking block 2093; a locking driving block (2095) which can slide along the longitudinal groove (2092) is arranged in the longitudinal groove (2092), a driving inclined plane (2096) is arranged on the lower surface of the locking driving block (2095), the locking inclined plane (2094) and the driving inclined plane (2096) are matched with each other to form a structure which can slide and be separated, and one end of the locking driving block (2095) is connected with a rotary table traction cable; and a rotary table locking groove (2081) which can be clamped with the rotary table locking block (2093) is arranged on the side surface of the seat part (208).
10. A method of folding a collapsible pushchair according to claims 1 to 9, characterised in that the step of folding the pushchair is:
1) Firstly, the seat part (209) is rotated to lead the backrest (1) to be righted;
2) Unlocking the backrest (1) and the seat plate (2);
3) After the folding backrest (1) is rotated, the seat board (2) and the armrests (3) are unlocked;
4) The folding handrail (3) is rotated to enable the upper part of the baby carriage to be completely folded;
5) Unlocking the push rod (4) and the seat plate (2) and the front support (5);
6) The folding seat board (2) and the front bracket (5) are rotated, so that the front bracket (5) and the rear bracket (6) are unlocked;
7) The folding push rod (4) and the rear support (6) are rotated, so that the lower part of the baby carriage is completely folded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211233683.6A CN115384598B (en) | 2022-10-10 | 2022-10-10 | Foldable and unfolding baby carriage and folding method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211233683.6A CN115384598B (en) | 2022-10-10 | 2022-10-10 | Foldable and unfolding baby carriage and folding method thereof |
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| Publication Number | Publication Date |
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| CN115384598A true CN115384598A (en) | 2022-11-25 |
| CN115384598B CN115384598B (en) | 2024-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211233683.6A Active CN115384598B (en) | 2022-10-10 | 2022-10-10 | Foldable and unfolding baby carriage and folding method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115805987A (en) * | 2023-01-17 | 2023-03-17 | 福建欧仕儿童用品股份有限公司 | A multi-form baby stroller |
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| CN216684565U (en) * | 2021-11-01 | 2022-06-07 | 东莞市台塑婴童用品有限公司 | Baby handcart |
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| CN205769517U (en) * | 2016-05-10 | 2016-12-07 | 好孩子儿童用品有限公司 | Children trolley |
| CN110667681A (en) * | 2019-09-20 | 2020-01-10 | 东莞金旺儿童用品有限公司 | Baby stroller and folding method thereof |
| CN211391426U (en) * | 2019-12-23 | 2020-09-01 | 黄国来 | Folding baby carriage |
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| Publication number | Publication date |
|---|---|
| CN115384598B (en) | 2024-09-17 |
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