CN115158433A - Stroller and folding method thereof - Google Patents
Stroller and folding method thereof Download PDFInfo
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- CN115158433A CN115158433A CN202210733779.2A CN202210733779A CN115158433A CN 115158433 A CN115158433 A CN 115158433A CN 202210733779 A CN202210733779 A CN 202210733779A CN 115158433 A CN115158433 A CN 115158433A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 230000013011 mating Effects 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 210000003781 tooth socket Anatomy 0.000 claims 4
- 230000008569 process Effects 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 15
- 238000010168 coupling process Methods 0.000 description 15
- 238000005859 coupling reaction Methods 0.000 description 15
- 230000001960 triggered effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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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
- B62B7/064—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg
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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
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/20—Handle bars; Handles
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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 relates to a children's cart and a folding method thereof, wherein the cart comprises a cart frame, a locking mechanism and an unlocking mechanism, the cart frame comprises a lower cart frame, an upper cart frame and a push handle, the locking mechanism comprises a first locking device and a second locking device, the unlocking mechanism comprises a first unlocking device and a second unlocking device, and when the push handle rotates to a position between an unfolding position and a folding position of the push handle or the folding position relative to the upper cart frame, the push handle triggers the first unlocking device to enable the first locking device to be switched from a locking working state to an unlocking working state. The folding method of the children's barrow comprises an unlocking step of unlocking the first locking device and the second locking device respectively, and a step of rotatably drawing the push handle relative to the upper frame, wherein the first locking device is unlocked by rotatably drawing the push handle relative to the upper frame. The child stroller and the folding method thereof adopt a new unlocking mode, so that the folding operation can be simplified, and the folding process of the stroller is more convenient.
Description
Technical Field
The invention relates to a stroller, in particular to a foldable stroller and a folding method thereof.
Background
In the prior art, the stroller is generally provided in a foldable form for convenient carrying, transportation and storage. Foldable stroller are mainly realized by providing a stroller frame having an open state and a folded state. In order to realize the folding function, the main components of the frame of the stroller, such as the front wheel bracket, the rear wheel bracket, the push handle rod and the like, are mutually connected in a rotating way, and the specific structural design is diversified. However, different structural designs have important influences on the shape of the frame, the stability of the frame, the convenience of folding operation, the volume and storage after folding and the cost of the cart. On the premise of ensuring the stability of the frame, the design of the child stroller which has novel shape, small folding volume, convenient storage and transportation and convenient operation is the key for ensuring that the stroller product has market competitiveness.
Disclosure of Invention
The invention aims to provide a stroller with a novel unlocking mode to simplify the folding operation of the stroller.
The invention also provides a novel folding method of the baby stroller, which is simpler to operate.
In order to solve the technical problems, the invention adopts a technical scheme that:
a children's barrow, the children's barrow has expansion state and fold condition, the children's barrow includes frame, front wheel subassembly, rear wheel subassembly, is used for locking the children's barrow in the locking mechanical system of expansion state and is used for unblock the unlocking mechanism of locking mechanical system, the frame includes lower frame, upper carriage and pushing handle, lower frame bottom be provided with front wheel subassembly and rear wheel subassembly, the lower part of upper carriage with the upper portion of lower frame is rotated and is connected, the pushing handle with the upper portion of upper carriage is rotated and is connected, the locking mechanical system includes first locking device and second locking device, first locking device has locking operating condition and unblock operating condition, when first locking device is in locking operating condition, the relative position between upper carriage and the lower carriage is locked, when first locking device is in unblock operating condition, the upper carriage is rotatable relative to the lower carriage; the second locking device has a locking working state and an unlocking working state, when the second locking device is in the locking working state, the relative position between the push handle and the upper frame is locked, and when the second locking device is in the unlocking working state, the push handle can rotate relative to the upper frame; the unlocking mechanism comprises a first unlocking device for unlocking the first locking device and a second unlocking device for unlocking the second locking device;
when the push handle rotates to a set position relative to the upper frame, the push handle triggers the first unlocking device to enable the first locking device to be switched to an unlocking working state from a locking working state, the push handle has an unfolding position and a folding position relative to the upper frame, and the set position is a position between the unfolding position and the folding position or the folding position.
In some preferred embodiments according to the present invention, the push handle rotates downward and forward to close the upper frame when the push handle is converted from the unfolded position to the folded position.
In some preferred embodiments according to the invention, the push handle triggers the first unlocking means during the transition from the unfolded position to the folded position, and the first locking means is completely unlocked before or at the same time as the push handle reaches the folded position.
In some embodiments according to the invention, the first locking device is provided between a lower portion of the upper frame and an upper portion of the lower frame.
In some embodiments according to the present invention, the first locking device includes a first locking element, a first mating element and a first elastic element, the first locking element is slidably or rotatably disposed on one of the upper frame and the lower frame, the first mating element is disposed on the other of the upper frame and the lower frame, and when the first locking device is in a locking operation state, the first locking element is locked with the first mating element in a mating manner; when the first locking device is in an unlocking working state, the first locking part is disengaged from the first mating part, and the first elastic part is used for enabling the first locking part to be inclined to be matched with the first mating part;
the first unlocking device comprises an unlocking piece which can be rotatably or slidably arranged between the lower part of the upper frame and the upper part of the lower frame, an unlocking driving piece which can be rotatably or slidably arranged on the upper part of the upper frame, and a traction piece which connects the unlocking piece with the unlocking driving piece, wherein the unlocking piece can drive the first locking piece to move towards the direction far away from the first mating piece by rotating or sliding; the push handle has the body of rod and set up in trigger part on the body of rod, works as when pushing away the handle and being in the expansion position, trigger part with the separation of unblock driving piece, works as push away the handle and rotate extremely when setting for the position, trigger part begins to support and presses the unblock driving piece, and along with pushing away the continuation of handle and rotating, order about the unblock driving piece rotates or slides, and then passes through the traction piece drives the unblock piece rotates or slides, finally makes first locking piece breaks away from completely first fitting piece realizes the unblock.
In a further embodiment, the upper frame is provided with a first combining part, the lower frame is provided with a second combining part, the first combining part and the second combining part are rotatably connected through a rotating shaft, the first locking part is slidably arranged on one of the first combining part and the second combining part, the first matching part is formed on the other one of the first combining part and the second combining part, the unlocking part is rotatably arranged between the first unlocking part and the first combining part or the second combining part, the axis of rotation is superposed with the axis of the rotating shaft, and the unlocking part is matched with the first combining part or the second combining part through a guide inclined surface inclined relative to the sliding direction of the first locking part, so that the unlocking part can drive the first locking part to slide towards the direction far away from the first matching part after being pulled and rotated;
the unlocking driving piece is rotatably arranged on the upper frame, the length direction of the unlocking driving piece is intersected with the extension direction of the upper frame, one end portion of the unlocking driving piece is positioned in the rod body of the upper frame and is connected with the traction piece, the other end portion of the unlocking driving piece is also positioned in the rod body of the upper frame or extends out of the rod body of the upper frame, the other end portion of the unlocking driving piece is provided with a pressing portion, and when the pushing handle rotates to a set position, the triggering portion of the pushing handle presses the pressing portion to enable the unlocking driving piece to rotate.
In some preferred embodiments, when the triggering portion presses against the pressing portion, one end portion of the unlocking driving member rotates upward to drive the traction member to move upward in the rod body of the upper frame. Preferably, the child stroller further comprises a return elastic member for biasing the one end portion of the unlocking driving member to rotate downward.
In some embodiments according to the present invention, the first locking member has a plurality of racks distributed along its circumference, the length direction of each rack extends along the axial line direction of the rotating shaft, a plurality of tooth spaces distributed along its circumference are formed in the first coupling member and the second coupling member, the first locking member is slidably disposed on the second coupling member and always engaged with the plurality of tooth spaces on the component, the plurality of tooth spaces on the first coupling member constitute the first mating member, and when the first locking device is in the locking working state, the plurality of racks are also engaged with the plurality of tooth spaces on the first coupling member; when the first locking device is in an unlocking working state, the plurality of racks are disengaged from the plurality of tooth grooves on the first combining piece; the utility model discloses a locking device, including first combination piece, unlocking piece, first locking piece, unlocking piece, first combination piece, unlocking piece can rotate and simultaneously towards keeping away from the direction of first combination piece slides, and then promotes first locking piece is kept away from tooth's socket on the first combination piece realizes the unblock, unlocking piece is located first locking piece with between the first combination piece, and the unlocking piece with through for between the first combination piece for the direction inclined plane cooperation of the slip direction slope of first locking piece, pulling unlocking piece.
In some embodiments according to the present invention, the upper frame includes a push rod frame, the push rod frame extends obliquely upward from front to back when the stroller is in a deployed state, the push handle also extends obliquely upward from front to back, the push rod frame includes side push rods on two sides, an upper connecting rod connecting upper end portions of the side push rods, a connecting sleeve fixedly sleeved on the upper connecting rod, the push handle includes side handles on two sides and a lower connecting rod connecting lower end portions of the side handles, and the lower connecting rod penetrates through the connecting sleeve and is rotatably connected with the connecting sleeve; the unlocking driving piece is rotatably arranged at the upper part of the side push rod; when the push handle is in the unfolding position, the extending directions of the side handle and the side push rod are consistent, and when the push rod is in the folding position, the side handle is parallel to the side push rod.
In some preferred embodiments according to the invention, the lower side wall of the side pushrod is provided with an opening at a position corresponding to the unlocking actuator, the other end portion of the unlocking actuator protruding from the opening.
In some specific and preferred embodiments according to the present invention, the lower frame includes front frames at two sides and rear frames at two sides, the front frames are respectively connected to the left and right sides of the front wheel assembly, the lower ends of the rear frames are respectively connected to the rear wheel assembly, the first locking devices are respectively arranged between the lower end of the side push rod and the upper end of the front frame, the first locking devices correspond to the first locking devices, the number of the first unlocking devices and the number of the triggering portions on the push handle are also two, and when the stroller is in the unfolded state, the upper portion of the front frame is consistent with the extending direction of the side push rod; when the cart is in the folded position, the side push rods are parallel to the upper portion of the front support.
The invention adopts another technical scheme that: a folding method of a children's cart is provided, wherein a frame has an unfolding state and a folding state, the frame comprises a lower frame, an upper frame and a push handle, the lower part of the upper frame is rotatably connected with the upper part of the lower frame and is relatively locked by a first locking device, and the push handle is rotatably connected with the upper part of the upper frame and is relatively locked by a second locking device; the folding method comprises an unlocking step of unlocking the first locking device, an unlocking step of unlocking the second locking device, a step of rotatably drawing the push handle relative to the upper frame, and a step of rotatably drawing the upper frame relative to the lower frame, wherein the first locking device is unlocked by rotatably drawing the push handle relative to the upper frame.
In some embodiments, the locking of the first locking device is completely released before or while the push handle is pivotally stowed to the folded position relative to the upper frame.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the child stroller adopts a new unlocking mode, and is more convenient to fold.
According to the folding method provided by the invention, the unlocking operation between the upper frame and the lower frame is automatically triggered in the rotating and folding process of the push handle, compared with the existing folding method, the folding method is more convenient to fold, the folding process is smooth, and the pause for unlocking is not needed.
Drawings
Fig. 1 is a perspective view of a stroller in some embodiments, with the stroller in a deployed state;
FIG. 2 is a fragmentary schematic view of FIG. 1 with the first locking device in an exploded condition;
FIG. 3 is an enlarged view of area A of FIG. 2;
FIG. 4 is a top view of the front support, the pusher frame, and the push handle of the stroller of FIG. 1;
FIG. 5 isbase:Sub>A sectional view taken along line A-A of FIG. 4;
FIG. 6 is an enlarged view of area C of FIG. 5, with the first locking means in a locked condition;
FIG. 7 is an enlarged view of area C of FIG. 5, with the first locking device in an unlocked condition;
FIG. 8 is a perspective view showing the push handle and the first unlocking device, with the push handle in the deployed position;
FIG. 9 is a perspective view showing the push handle and the first unlocking device, with the push handle in the folded position;
FIG. 10 is a schematic view showing the construction of the side pusher, the side handle and the first unlocking means of the stroller;
FIG. 11 is a perspective view of an unlock drive in some embodiments;
FIG. 12 is an enlarged view taken from area B of FIG. 10, wherein the first unlocking device is not actuated;
FIG. 13 is an enlarged view taken in area B of FIG. 10, with the first release mechanism actuated and the first release actuator rotated;
FIG. 14 is an enlarged view taken in area B of FIG. 10, with the first unlocking means activated and the first locking means fully unlocked;
fig. 15 is a front view of the stroller in some embodiments, with the stroller in a deployed state;
FIG. 16 is a front view of the stroller in some embodiments with the push handle in the process of being folded;
FIG. 17 is a front view of the stroller in some embodiments with the push handle in a collapsed position;
FIG. 18 is a front view of the stroller in some embodiments with the push handle and the push rod carrier folded;
wherein:
1-a vehicle frame; 10-a lower frame; 10 a-a front support; 10 b-a rear support; 10 c-a second bonding element; 100-gullet; 11-mounting the frame; 11 a-side pushrod; 11 b-an upper connecting rod; 11 c-a connecting sleeve; 11 d-a first coupling member; 110-opening a hole; 12-a push handle; 12 a-a push bar; 12 b-a lower connecting rod; 120-a trigger;
2-a front wheel assembly; 3-a rear wheel assembly;
4-a first locking device; 40-a first locking member; 40 a-rack; 41-a first elastic member;
5-a first unlocking means; 50-unlocking means; 500-a guide ramp; 51-unlocking the drive; 510-a pressing part; 52-a traction member; 53-a second elastic member;
a-a first rotating shaft; b-a second rotating shaft.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which the invention is attached. The invention will be further described with reference to the accompanying drawings and preferred embodiments thereof. In the following embodiments, it should be noted that the terms "front", "back", "upper" and "lower" are all based on fig. 15, the term "front" refers to the left side of fig. 15, and the term "back" refers to the right side of fig. 15. The orientations and positional relationships described in the present invention are only for convenience in describing the invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, only a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The term "parallel" as used herein includes both absolute parallelism in the mathematical sense and side-by-side and near parallel situations.
As shown in fig. 1 to 18, the present embodiment provides a stroller having an unfolded state and a folded state. The stroller comprises a frame 1, a front wheel assembly 2, a rear wheel assembly 3, a locking mechanism for locking the stroller in the unfolded state, and an unlocking mechanism for unlocking the locking mechanism.
Referring to fig. 1, the frame includes a lower frame 10, an upper frame 11 and a push handle 12 from bottom to top, wherein: the lower frame 10 includes two front brackets 10a at both sides, two rear brackets 10b at both sides, and the like. The front wheel assemblies 2 are a group, and two front brackets 10a are respectively connected to two opposite sides of the group. The rear wheel assemblies 3 are two groups and are respectively arranged at the lower end parts of the two rear brackets 10 b. The upper frame 11 mainly comprises a push rod frame which is integrally in an inverted U shape, the push rod frame comprises side push rods 11a which are positioned on two sides, an upper connecting rod 11b which is connected with the upper end parts of the push rods 11a on the two sides, and a connecting sleeve 11c which is fixedly sleeved outside the upper connecting rod 11b, and the lower end parts of the push rods 11a on the two sides are respectively and rotatably connected with the upper end parts of the front support frames 10a on the two sides. The push handle 12 includes push handle bars 12a at both sides and a lower connection bar 12b connecting lower ends of the push handle bars 12a at both sides. The lower link 12b passes through the connecting sleeve 11c and is rotatably provided about an axis line extending in the left-right direction of the cart with respect to the connecting sleeve 11 c. As shown in fig. 1 and 15, when the stroller is in the unfolded state, the upper portion of the front bracket 10a, the side push rods 11a and the push handle rod 12a are inclined and extend upwards from front to back, the extending directions of the three are substantially the same, and the rod bodies form an included angle of 180 degrees. Referring to fig. 18, when the stroller is folded, the upper portion of the front frame 10a, the side push rods 11a and the push handle rods 12a are parallel.
In order to lock the vehicle body frame 1 in the unfolded state, the locking mechanism includes a first locking device 4 provided between the side push rods 11a and the front bracket 10a on both sides, respectively, and a second locking device provided between the connecting sleeve 11c and the push handle 12. Correspondingly, the unlocking mechanism comprises a first unlocking means 5 for unlocking the first locking means 4 and a second unlocking means for unlocking the second locking means. The invention is mainly innovative in that a novel unlocking mode is provided for unlocking the first locking device 4, so that a new folding experience is provided and the folding operation is more convenient. In the following, the description will be focused on the first locking means 4 and the first unlocking means 5 and how to unlock them. The present invention does not relate to innovations in the second locking device and the unlocking device thereof, and specific structures thereof can be set with reference to the locking and unlocking structures described in the related patent technology (for example, CN111483510 a) that the present applicant has disclosed. And will not be described in detail herein.
As shown in fig. 2 to 7, the first locking means 4 takes the form of a bell lock mechanism. The lower end of the side push rod 11a is fixedly provided with a first combining piece 11d, the upper end of the front bracket 10a is fixedly provided with a second combining piece 10c, and the first combining piece 11d and the second combining piece 10c are rotatably connected through a first rotating shaft a. The first locking means 4 comprises a first locking member 40, a first counterpart and a first resilient member 41. The first locking member 40 is fitted over the first rotating shaft a and is slidably disposed with respect to the first engaging member 11d and the second engaging member 10 c. The first locking member 40 has a plurality of racks 40a distributed along its circumferential direction, and the longitudinal direction of each rack 40a extends along the axial center line direction of the first rotating shaft a. The first coupling member 11d has a plurality of splines (not shown) formed therein and distributed along its circumferential direction, and the splines constitute a first mating member. The second engaging members 10c also have a plurality of teeth slots 100 distributed along their circumferential direction, and the first locking member 40 is slidably connected to the second engaging members 10c and is always engaged with the plurality of teeth slots 100 of the member. The first elastic member 41 is a compression spring provided between the second coupling member 10c and the first locking member 40 for biasing the first locking member 40 to slide toward the first coupling member 11 d. As shown in fig. 6, when the first locking device 4 is in the locking operation state, the plurality of racks 40a of the first locking member 40 are engaged with the plurality of tooth grooves 100 of the first coupling member 11d and the second coupling member 10c, respectively; when the first locking device 4 is unlocked, the first locking member 40 is slid in a direction away from the first engaging member 11d against the force of the first elastic member 41 until the plurality of racks 40a of the first locking member 40 are disengaged from the plurality of teeth grooves of the first engaging member 11d, and at this time, the first locking device 4 is in an unlocked operation state, as shown in fig. 7.
As shown in fig. 3 and 8 to 14, the first unlocking means 5 includes an unlocking member 50, an unlocking driving member 51, and a pulling member 52. The unlocking member 50 is rotatably sleeved on the first rotating shaft a and located between the first locking member 40 and the first engaging member 11d, and the unlocking driving member 51 is rotatably connected to the upper portion of the side push rod 11 a. The pulling member 52 is embodied as an elongated pulling cable which extends mainly inside the side push rod 11a, and has a lower end connected to the unlocking member 50 and an upper end connected to the unlocking actuator 51, so that the movement of the unlocking actuator 51 is transmitted to the unlocking member 50. The unlocking member 50 has a guide slope 500, and correspondingly, a guide slope (not shown) is also provided in the first coupling member 11 d. When the unlocking member 50 is pulled by the pulling member 52, the unlocking member 50 rotates itself, and under the inclined surface fit between the unlocking member 50 and the first coupling member 11d, the unlocking member 50 moves along the first rotating shaft a in a direction away from the first coupling member 11d, and correspondingly pushes the first locking member 40 away from the first coupling member 11d, thereby unlocking.
As shown in fig. 8 to 14, an opening 110 is provided on a lower side wall of the side push rod 11a, a part of the unlocking actuator 51 is inserted into the rod body of the side push rod 11a from the opening 110, and the other part still protrudes out of the rod body, and an extending direction of the unlocking actuator 51 intersects with an extending direction of the side push rod 11 a. The inner end of the unlocking actuator 51 is connected to the pulling member 52 and a second elastic member 53 is provided between the unlocking actuator 51 and the side push rod 11 a. As shown in fig. 11 to 14, a substantially middle portion of the unlocking driving member 51 is rotatably connected to the side push rod 11a via a second rotating shaft b horizontally extending in the left-right direction of the cart, and an outer end portion thereof protrudes from the rod body of the side push rod 11a and has a pressing portion 510 on an outer end portion thereof. When the pressing part 510 is pressed downward, the inner end of the unlocking driving member 51 pulls the pulling member 52 upward. The second elastic element 53 is a tension spring, and the upper end thereof is connected to the unlocking driving element 51, and the lower end thereof is connected to the side push rod 11a through a fixing seat, and the tension spring mainly plays a role of resetting, so that the traction element 52 and the unlocking driving element 51 tend to be kept in an un-unlocked working state. When the force acting on the pressing part 510 disappears, the pulling element 52 and the unlocking driving element 51 are reset correspondingly under the action of the tension spring.
As shown in fig. 13, the push handle 12 has a trigger 120 fixed to the side handle bar 12a or the lower connecting bar 12b, or integrally formed therewith. After the second locking device is unlocked, the push handle 12 can rotate downward and forward relative to the push rod frame, when the push handle 12 rotates to a certain position, the trigger part 120 on the push handle 12 can abut against the pressing part 510 on the unlocking driving member 51, the push handle 12 continues to rotate, the trigger part 120 continuously abuts against the pressing part 510, the unlocking driving member 51 rotates by overcoming the force of the tension spring, the unlocking driving member 51 rotates as described above, the inner end part moves upward by pulling the traction member 52, the traction member 52 further pulls the unlocking member 50 to rotate, and finally the unlocking of the first locking device 4 is realized. The press 510 preferably includes a chamfer as seen in fig. 13 and 14.
As shown in fig. 12 to 17, in one embodiment, during the transition of the push handle 12 from the unfolded position to the folded position, the push handle 12 triggers the first unlocking means 5, and the first locking means 4 is completely unlocked before or at the same time as the push handle 12 reaches the folded position.
As shown in fig. 8 to 18, the stroller with the above structure unlocks the second locking device first when the stroller needs to be folded, and then the push handle 12 is rotated forward downward to be close to the push rod frame, during which the first unlocking device 4 is triggered, and when the push handle 12 is rotated to the folded position, the first locking device 4 is completely unlocked, the push rod frame forward support 10a can be directly rotated close to the push rod frame, and in the middle, manual operation for unlocking the first locking device 4 is not needed, and the folding process does not need to be stopped due to the unlocking of the first locking device 4, which greatly facilitates the unlocking operation, and provides a novel folding experience.
In other embodiments of the present invention, a folding method of a stroller is provided, a stroller frame of the stroller includes a lower frame, an upper frame and a handle, the lower frame and the upper frame are locked by a first locking device, the upper frame and the handle are locked by a second locking device, and a specific structure of the stroller frame and a specific structure of the locking device are not particularly limited, and may be the structures as shown in the above embodiments or have different structures. The folding method comprises an unlocking step of unlocking the first locking device, an unlocking step of unlocking the second locking device, a step of rotatably drawing in the push handle relative to the upper frame, and a step of rotatably drawing in the upper frame relative to the lower frame, wherein the first locking device is unlocked by rotatably drawing in the push handle relative to the upper frame. In a more specific embodiment, the locking of the first locking means is completely released before or at the same time as the push handle is turned to fold up to the folded position relative to the upper frame. The folding method is adopted regardless of the specific structure of the upper frame and the specific structure of the lower frame, and compared with the folding method of the existing stroller, the unlocking of the upper frame and the lower frame is triggered by rotating and folding the push handle, so that the stroller is obviously simpler and more convenient, and has better experience.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (12)
1. A children's barrow, the children's barrow has expansion state and fold condition, the children's barrow includes frame, front wheel subassembly, rear wheel subassembly, is used for locking the children's barrow in the locking mechanical system of expansion state and is used for unblock the unlocking mechanism of locking mechanical system, the frame includes lower frame, upper carriage and pushing handle, lower frame bottom be provided with front wheel subassembly and rear wheel subassembly, the lower part of upper carriage with the upper portion of lower frame is rotated and is connected, the pushing handle with the upper portion of upper carriage is rotated and is connected, the locking mechanical system includes first locking device and second locking device, first locking device has locking operating condition and unblock operating condition, when first locking device is in locking operating condition, the relative position between upper carriage and the lower carriage is locked, when first locking device is in unblock operating condition, the upper carriage is rotatable relative to the lower carriage; the second locking device has a locking working state and an unlocking working state, when the second locking device is in the locking working state, the relative position between the push handle and the upper frame is locked, and when the second locking device is in the unlocking working state, the push handle can rotate relative to the upper frame; the unlocking mechanism comprises a first unlocking device for unlocking the first locking device and a second unlocking device for unlocking the second locking device, and is characterized in that:
when the push handle rotates to a set position relative to the upper frame, the push handle triggers the first unlocking device to enable the first locking device to be switched from a locking working state to an unlocking working state, the push handle has an unfolding position and a folding position relative to the upper frame, and the set position is a position between the unfolding position and the folding position or the folding position.
2. The stroller of claim 1, wherein: when the pushing handle is switched from the unfolding position to the folding position, the pushing handle rotates downwards and forwards to approach the upper frame.
3. The stroller of claim 1, wherein: during the transition from the unfolded position to the folded position, the push handle triggers the first unlocking means and the first locking means are completely unlocked before or at the same time as the push handle reaches the folded position.
4. The stroller of claim 1, 2 or 3, wherein: the first locking device is arranged between the lower part of the upper frame and the upper part of the lower frame; and/or the first locking device comprises a first locking part, a first mating part and a first elastic part, the first locking part is arranged on one of the upper frame and the lower frame in a sliding or rotating mode, the first mating part is arranged on the other one of the upper frame and the lower frame, and when the first locking device is in a locking working state, the first locking part is matched and locked with the first mating part; when the first locking device is in an unlocking working state, the first locking part is disengaged from the first mating part, and the first elastic part is used for enabling the first locking part to be inclined to be matched with the first mating part;
the first unlocking device comprises an unlocking piece which can be rotatably or slidably arranged between the lower part of the upper frame and the upper part of the lower frame, an unlocking driving piece which can be rotatably or slidably arranged on the upper part of the upper frame, and a traction piece which connects the unlocking piece with the unlocking driving piece, wherein the unlocking piece can drive the first locking piece to move towards the direction far away from the first mating piece by rotating or sliding; the push handle has the body of rod and set up in trigger part on the body of rod, works as when pushing away the handle and being in the expansion position, trigger part with the separation of unblock driving piece, works as push away the handle and rotate extremely when setting for the position, trigger part begins to support and presses the unblock driving piece, and along with pushing away the continuation of handle and rotating, order about the unblock driving piece rotates or slides, and then passes through the traction piece drives the unblock piece rotates or slides, finally makes first locking piece breaks away from completely first fitting piece realizes the unblock.
5. The stroller of claim 4, wherein: the upper frame is provided with a first combining piece, the lower frame is provided with a second combining piece, the first combining piece and the second combining piece are rotatably connected through a rotating shaft, the first locking piece is slidably arranged on one of the first combining piece and the second combining piece, the first matching piece is formed on the other one of the first combining piece and the second combining piece, the unlocking piece is rotatably arranged between the first unlocking piece and the first combining piece or the second combining piece, the rotating shaft axis coincides with the shaft axis of the rotating shaft, and the unlocking piece and the first combining piece or the second combining piece are matched through a guide inclined plane inclined relative to the sliding direction of the first locking piece, so that the unlocking piece can be driven to slide towards the direction far away from the first matching piece after being pulled and rotated;
the unlocking driving piece is rotatably arranged on the upper frame, the length direction of the unlocking driving piece is intersected with the extension direction of the upper frame, one end part of the unlocking driving piece is positioned in the rod body of the upper frame and is connected with the traction piece, the other end part of the unlocking driving piece is also positioned in the rod body of the upper frame or extends out of the rod body of the upper frame, the other end part of the unlocking driving piece is provided with a pressing part, and when the push handle rotates to the set position, the triggering part of the push handle presses the pressing part to enable the unlocking driving piece to rotate.
6. The stroller of claim 5, wherein: when the trigger part presses the pressing part, one end part of the unlocking driving part rotates upwards to drive the traction part to move upwards in the rod body of the upper frame; the stroller further includes a return spring for biasing the one end of the unlock drive member to rotate downward.
7. The stroller of claim 5, wherein: the first locking piece is provided with a plurality of racks distributed along the self circumference, the length direction of each rack extends along the axial lead direction of the rotating shaft, a plurality of tooth sockets distributed along the self circumference are respectively formed in the first combining piece and the second combining piece, the first locking piece is arranged on the second combining piece in a sliding way and is always meshed with the tooth sockets on the component, the tooth sockets on the first combining piece form the first matching piece, and when the first locking device is in a locking working state, the tooth racks are also meshed with the tooth sockets on the first combining piece; when the first locking device is in an unlocking working state, the plurality of racks are disengaged from the plurality of tooth grooves on the first combining piece; unlocking piece can establish with rotating the ground in the pivot, unlocking piece is located first locking piece with between the first combining piece, and unlocking piece with through for between the first combining piece the direction inclined plane cooperation of the slip direction slope of first locking piece, the pulling unlocking piece, unlocking piece can rotate and simultaneously towards keeping away from the direction of first combining piece slides, and then promotes first locking piece is kept away from tooth's socket on the first combining piece realizes the unblock.
8. The stroller of claim 5, wherein: the upper frame comprises a push rod frame, when the stroller is in an unfolded state, the push rod frame obliquely extends upwards from front to back, the push handle also obliquely extends upwards from front to back, the push rod frame comprises side push rods positioned on two sides, an upper connecting rod connected with the upper end parts of the two side push rods, and a connecting sleeve fixedly sleeved on the upper connecting rod, the push handle comprises side handles positioned on two sides and a lower connecting rod connected with the lower end parts of the two side handles, and the lower connecting rod penetrates through the connecting sleeve and is rotatably connected with the connecting sleeve; the unlocking driving piece is rotatably arranged at the upper part of the side push rod; when the push handle is in the unfolding position, the extending directions of the side handle and the side push rod are consistent, and when the push rod is in the folding position, the side handle is parallel to the side push rod.
9. The stroller of claim 8, wherein: the lower side wall of the side push rod is provided with an opening at a position corresponding to the unlocking driving piece, and the other end of the unlocking driving piece extends out of the opening.
10. The stroller of claim 8, wherein: the lower frame comprises front supports positioned on two sides and rear supports positioned on two sides, the two front supports are respectively connected to the left side and the right side of the front wheel assembly, the lower end parts of the two rear supports are respectively connected with the rear wheel assembly, first locking devices are respectively arranged between the lower end parts of the side push rods and the upper end parts of the front supports and correspond to the two first locking devices, the number of the first unlocking devices is two, the number of the triggering parts on the push handles is two, and when the cart is in an unfolded state, the extending directions of the upper parts of the front supports and the side push rods are consistent; when the cart is in the folded position, the side push rods are parallel to the upper portion of the front support.
11. A folding method of a children's cart is characterized in that a frame has an unfolded state and a folded state, the frame comprises a lower frame, an upper frame and a push handle, the lower portion of the upper frame is rotatably connected with the upper portion of the lower frame and is relatively locked through a first locking device, and the push handle is rotatably connected with the upper portion of the upper frame and is relatively locked through a second locking device; the folding method comprises an unlocking step of unlocking the first locking device, an unlocking step of unlocking the second locking device, a step of folding the push handle in a rotating manner relative to the upper frame, and a step of folding the upper frame in a rotating manner relative to the lower frame, and is characterized in that: the first locking device is unlocked by rotating and drawing the push handle relative to the upper frame.
12. The folding method according to claim 11, characterized in that: the locking of the first locking device is completely released before or at the same time when the push handle rotates to be folded to the folding position relative to the upper frame.
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| CN202210733779.2A CN115158433B (en) | 2022-06-27 | 2022-06-27 | Child cart and folding method thereof |
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| CN202210733779.2A CN115158433B (en) | 2022-06-27 | 2022-06-27 | Child cart and folding method thereof |
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| CN115158433A true CN115158433A (en) | 2022-10-11 |
| CN115158433B CN115158433B (en) | 2023-12-29 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2892687A1 (en) * | 2005-10-27 | 2007-05-04 | James M F Hutchinson | Child's folding pushchair has rear folding bar with central pivot and lock |
| CN203996366U (en) * | 2014-07-21 | 2014-12-10 | 好孩子儿童用品有限公司 | A kind of children trolley |
| CN205149943U (en) * | 2015-10-16 | 2016-04-13 | 好孩子儿童用品有限公司 | Child cart |
| US9637155B1 (en) * | 2016-02-24 | 2017-05-02 | Pao-Hsien Cheng | Locking mechanism and method for opening and folding baby stroller |
| CN107364483A (en) * | 2016-04-29 | 2017-11-21 | 明门瑞士股份有限公司 | Baby stroller |
| CN109291982A (en) * | 2017-07-24 | 2019-02-01 | 上海宝糖科技有限公司 | Children trolley |
| CN209757228U (en) * | 2019-04-11 | 2019-12-10 | 昆山威凯儿童用品有限公司 | Unlocking structure of bassinet |
| CN210502820U (en) * | 2019-06-21 | 2020-05-12 | 好孩子儿童用品有限公司 | Children's barrow |
| CN216102328U (en) * | 2021-08-25 | 2022-03-22 | 中山市贝聪母婴用品有限公司 | Novel baby carriage |
-
2022
- 2022-06-27 CN CN202210733779.2A patent/CN115158433B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2892687A1 (en) * | 2005-10-27 | 2007-05-04 | James M F Hutchinson | Child's folding pushchair has rear folding bar with central pivot and lock |
| CN203996366U (en) * | 2014-07-21 | 2014-12-10 | 好孩子儿童用品有限公司 | A kind of children trolley |
| CN205149943U (en) * | 2015-10-16 | 2016-04-13 | 好孩子儿童用品有限公司 | Child cart |
| US9637155B1 (en) * | 2016-02-24 | 2017-05-02 | Pao-Hsien Cheng | Locking mechanism and method for opening and folding baby stroller |
| CN107364483A (en) * | 2016-04-29 | 2017-11-21 | 明门瑞士股份有限公司 | Baby stroller |
| CN109291982A (en) * | 2017-07-24 | 2019-02-01 | 上海宝糖科技有限公司 | Children trolley |
| CN209757228U (en) * | 2019-04-11 | 2019-12-10 | 昆山威凯儿童用品有限公司 | Unlocking structure of bassinet |
| CN210502820U (en) * | 2019-06-21 | 2020-05-12 | 好孩子儿童用品有限公司 | Children's barrow |
| CN216102328U (en) * | 2021-08-25 | 2022-03-22 | 中山市贝聪母婴用品有限公司 | Novel baby carriage |
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|---|---|
| CN115158433B (en) | 2023-12-29 |
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