CN115180014B - Foldable baby carriage - Google Patents
Foldable baby carriage Download PDFInfo
- Publication number
- CN115180014B CN115180014B CN202210717429.7A CN202210717429A CN115180014B CN 115180014 B CN115180014 B CN 115180014B CN 202210717429 A CN202210717429 A CN 202210717429A CN 115180014 B CN115180014 B CN 115180014B
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- Prior art keywords
- push rod
- frame
- stroller
- rod
- end part
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- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 230000013011 mating Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/10—Perambulator bodies; Equipment therefor
- B62B9/102—Perambulator bodies; Equipment therefor characterized by details of the seat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/10—Perambulator bodies; Equipment therefor
- B62B9/102—Perambulator bodies; Equipment therefor characterized by details of the seat
- B62B9/104—Perambulator bodies; Equipment therefor characterized by details of the seat with adjustable or reclining backrests
Landscapes
- 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 child stroller with an unfolding state and a folding state, which comprises a frame, a front wheel assembly, a rear wheel assembly, a seat pocket assembly and a locking mechanism, wherein the front wheel assembly and the rear wheel assembly are arranged at the bottom of the frame. The frame comprises a front bracket, a rear bracket and a push rod bracket, and the push rod bracket comprises an upper push rod bracket and a lower push rod bracket which is rotationally connected with the upper push rod bracket; the front support, the rear support and the lower push rod frame are rotatably connected, and the third person is rotatably connected with one of the front support, the rear support and the lower push rod frame, or the front support, the rear support and the lower push rod frame are in co-pivot rotation connection. The seat pocket assembly is rotationally connected with the upper push rod frame, and the joint of the seat pocket assembly and the upper push rod frame is positioned below the joint of the upper push rod frame and the lower push rod frame; when the child stroller is in a folded state, the seat pocket assembly, the upper push rod frame, the lower push rod frame, the front support and the rear support are sequentially closed from front to back. The child stroller has the advantages that the frame is stable in the unfolded state, and the child stroller is small in folding volume and convenient to store and transport in the folded state.
Description
Technical Field
The invention relates to a child stroller, in particular to a foldable child stroller.
Background
The collapsible stroller is primarily realized by providing a stroller frame having an open state and a collapsed state. In order to realize the folding function, the main components of the cart frame, such as the front wheel bracket, the rear wheel bracket, the cushion rod, the pushing handle rod and the like, are mutually rotationally connected, and the specific structural design is various. But different structural designs have important influences on the modeling of the frame, the stability of the frame, the convenience of folding operation, the volume and storage of the folded frame and the cost of the cart. Under the premise of ensuring the stability of the frame, the design of the child cart with novel structure, small folding volume, convenient storage and transportation and convenient operation is a key for enabling the cart products to have market competitiveness.
Disclosure of Invention
The invention aims to provide a novel foldable baby carriage which is small in size and convenient to store and transport after being folded.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a children's shallow, children's shallow has the state of expanding and folding state, children's shallow includes the frame, set up in front wheel subassembly and rear wheel subassembly, seat pocket subassembly in the bottom of frame, be used for locking mechanical system with children's shallow in the state of expanding.
The frame comprises a front bracket, a rear bracket and a push rod bracket, and the push rod bracket comprises an upper push rod bracket and a lower push rod bracket which is rotationally connected with the upper push rod bracket; the front support, the rear support and the lower push rod frame are rotatably connected, and a third person is rotatably connected with one of the front support, the rear support and the lower push rod frame, or the front support, the rear support and the lower push rod frame are in common pivot connection;
the seat pocket assembly is rotationally connected with the upper push rod frame, and the connection part of the seat pocket assembly and the upper push rod frame is positioned below the connection part of the upper push rod frame and the lower push rod frame;
when the child stroller is in a folded state, the seat pocket assembly, the upper push rod frame, the lower push rod frame, the front support and the rear support are sequentially closed from front to back.
In some embodiments, the seat pocket assembly rotates rearward adjacent the upper push rod rest, the upper push rod rest rotates downward adjacent the lower push rod rest, and the lower push rod rest rotates forward downward adjacent the front support when the stroller transitions from the unfolded state to the folded state.
In some preferred embodiments according to the present invention, the front bracket is rotatably connected to the rear bracket, and a rotation axis line between the front bracket and the rear bracket extends horizontally or obliquely in a left-right direction of the stroller when the stroller is in the unfolded state.
Further preferably, the lower push rod frame is rotatably connected with the front support, and when the stroller is in the unfolded state, a rotation axis line between the lower push rod frame and the front support, a rotation axis line between the upper push rod frame and the lower push rod frame, and a rotation axis line between the upper push rod frame and the seat pocket assembly are parallel to each other and horizontally extend along the left-right direction of the stroller.
In some embodiments, the connection position of the front bracket and the rear bracket and/or the push rod frame is located at an upper end of the front bracket, the connection position of the rear bracket and the front bracket and/or the push rod frame is located at an upper end of the rear bracket, and the connection position of the push rod frame and the front bracket and/or the rear bracket is located at a lower end of the push rod frame; the connecting position of the lower push rod frame and the upper push rod frame is located at the upper end part of the lower push rod frame, the connecting position of the upper push rod frame and the lower push rod frame is located at the non-end part of the upper push rod frame, the connecting position of the upper push rod frame and the seat pocket assembly is the lower end part of the upper push rod frame, and the connecting position of the seat pocket assembly and the upper push rod frame is the rear lower part of the seat pocket assembly.
In some embodiments, the rear bracket includes a left rear strut and a right rear strut extending in an up-down direction, the lower ends of the left rear strut and the right rear strut are respectively provided with the rear wheel assembly, and the upper ends of the left rear strut and the right rear strut are respectively rotatably connected with the front bracket and/or the lower putter frame.
In some embodiments, the front bracket includes a front strut extending in an up-down direction and a bottom bar connected to a lower end portion of the front strut, both ends of the bottom bar being respectively provided with the front wheel assembly.
In some embodiments, the lower push rod frame includes a left lower push rod and a right lower push rod extending in an up-down direction, respectively, a lower end portion of the upper push rod frame passes between the left lower push rod and the right lower push rod, and the upper push rod frame is rotatably connected with the left lower push rod and the right lower push rod.
In some embodiments, the upper end of the left rear strut, the upper end of the right rear strut, the lower end of the left lower push rod, the lower end of the right lower push rod, and the upper end of the front strut are coaxially rotatably connected.
In some embodiments, the upper end of the left push rod, the upper end of the right push rod and the lower part of the upper push rod frame are coaxially and rotatably connected.
In some embodiments, the lower end of the upper push rod frame and the seat pocket assembly are rotatably connected through a rotating shaft.
In some embodiments according to the present invention, the front bracket includes a connection part fixedly connected to or integrally provided with an upper end of the front strut, the connection part extending in a left-right direction of the cart, the left rear strut, the right rear strut, the left lower push rod, and the right lower push rod being respectively rotatably connected to the connection part and respectively rotatable with respect to the connection part about a first rotation axis, a second rotation axis, a third rotation axis, and a fourth rotation axis, the first rotation axis, the second rotation axis, the third rotation axis, and the fourth rotation axis being coincident and extending horizontally in the left-right direction of the cart.
In some embodiments, the left rear strut, the right rear strut, the left lower push rod, the right lower push rod and the connecting portion may be rotatably connected through the same rotation shaft.
In other embodiments according to the present invention, the front bracket includes a connection part fixedly connected to or integrally provided with an upper end of the front strut, the connection part extending in a left-right direction of the stroller, the left rear strut, the right rear strut, the left lower push rod, and the right lower push rod being respectively rotatably connected to the connection part and rotatable with respect to the connection part about a first rotation axis, a second rotation axis, a third rotation axis, and a fourth rotation axis, respectively, wherein the third rotation axis and the fourth rotation axis coincide and horizontally extend in a left-right direction of the stroller, the first rotation axis and the second rotation axis respectively extend obliquely in the left-right direction of the stroller, and a lower end portion of the left rear strut is folded toward an inner side of the stroller when the left rear strut is rotated close with respect to the front strut; when the right rear supporting rod is close to the front supporting rod, the lower end part of the right rear supporting rod is folded towards the inner side of the baby stroller, so that when the baby stroller is in a folded state, the distance between the lower end part of the left rear supporting rod and the lower end part of the right rear supporting rod is smaller than the distance between the lower end part of the left rear supporting rod and the lower end part of the right rear supporting rod in an unfolded state. Further, the left rear supporting rod and the right rear supporting rod can be respectively connected with the left side and the right side of the connecting part in a rotating way through inclined rotating shafts. The left lower push rod and the right lower push rod can be respectively and rotatably sleeved on the periphery of the connecting part.
Preferably, the connection part (when fixedly connected) or the joint part (when integrally connected) of the front support rod and the connection part is positioned in the middle of the connection part, the connection parts of the left rear support rod, the right rear support rod and the connection part are respectively positioned on the left side and the right side of the connection part, the connection part of the left lower push rod and the connection part is positioned between the connection part of the front support rod and the connection part, the connection part of the left rear support rod and the connection part, and the connection part of the right lower push rod and the connection part is positioned between the connection part of the front support rod and the connection part of the right rear support rod and the connection part.
Preferably, the left side of the connecting part and the left rear supporting rod are respectively provided with a matched inclined plane, and when the left rear supporting rod is close to the front supporting rod, the inclined planes on the left side of the connecting part and the left rear supporting rod are in sliding fit; the right side of connecting portion and be formed with matched with inclined plane on the back branch of right respectively, back branch of right for when preceding branch draws close, the right side of connecting portion the inclined plane on the back branch of right matches in a sliding way. The arrangement of the inclined plane can enable the rotation and transverse folding processes of the left and right rear supporting rods to be stable, and interference is avoided.
In some embodiments, the rear bracket further comprises a connecting sleeve respectively sleeved on the left rear strut and the right rear strut so as to connect the left rear strut and the right rear strut, and the connecting sleeve allows the left rear strut and the right rear strut to move towards the inner side of the stroller when the stroller is switched from the unfolded state to the folded state.
In some embodiments, the left rear strut is inclined from rear to front to the right of the stroller when the stroller is in the deployed state, the right rear strut is inclined from rear to front to the left of the stroller, and the distance between the upper end of the left rear strut and the upper end of the right rear strut is less than the distance between the lower end of the left rear strut and the lower end of the right rear strut.
In some preferred embodiments, the front strut, the lower push rod rest and the upper push rod rest have identical length extension directions when the stroller is in the deployed state.
In some preferred embodiments, the distance between the lower end of the left rear strut and the lower end of the right rear strut when the stroller is in the collapsed state is less than the distance between the lower end of the left rear strut and the lower end of the right rear strut when the stroller is in the expanded state.
In some preferred embodiments, the rear wheel assembly is located inboard of the front wheel assembly when the stroller is in a collapsed condition.
In some preferred embodiments, the seat pocket assembly is located at a front side, the front bracket and the rear bracket are located at a rear side, and the upper push rod rest and the lower push rod rest are located at a middle when the child stroller is in a folded state in a front-rear direction; in the left-right direction, the left rear supporting rod and the right rear supporting rod are respectively positioned at the left side and the right side of the front supporting rod; the left lower push rod and the right lower push rod are positioned at the left side and the right side of the upper push rod frame.
In some embodiments, the seat pocket assembly is a collapsible structure having an expanded state and a collapsed state.
In some embodiments, the seat pocket assembly is rotatably disposed with respect to the frame about a rotation axis extending in the up-down direction, so that the seat pocket assembly has a use state toward the front of the cart and a use state toward the rear of the cart.
In some embodiments, the seat pocket assembly comprises a seat plate, a backrest rod, a grab bar, a front baffle, a pedal and a connecting mechanism, wherein the backrest rod is rotatably connected to the rear part of the seat plate and extends along the up-down direction, the rear part of the grab bar is rotatably connected with the backrest rod, the upper end and the lower end of the front baffle are respectively and rotatably connected with the grab bar and the seat plate in a relative manner, the upper end of the pedal is rotatably connected with the front part of the seat plate, the connecting mechanism comprises a base and a connecting piece, the base is positioned below the seat plate, the connecting piece is fixedly connected to the rear part of the base and extends from front to back, the upper end of the connecting piece is rotatably connected with the push-up rod frame, when the seat pocket assembly is in a unfolded state, the seat plate extends along the horizontal direction and is pressed on the base, and a seating space for a child to sit is defined among the seat plate, the backrest rod, the grab bar and the front baffle; when the seat pocket assembly is switched from the unfolding state to the folding state, the connecting piece rotates backwards to be close to the upper push rod frame, and the seat plate, the front baffle piece, the grab rail and the backrest rod are sequentially driven to rotate and fold towards the upper push rod 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 folding principle, and is small in size and convenient to store and transport after being folded.
Drawings
FIG. 1 is a front view of a child stroller in an expanded state;
FIG. 2 is a perspective view of the stroller in an unfolded state;
FIG. 3 is a front view of the child stroller seat plate as it approaches the backrest bar with the stroller frame in an expanded configuration;
FIG. 4 is a perspective view of the child stroller of FIG. 3 with the seat pan closed against the backrest bar;
FIG. 5 is a front view of the seat pocket assembly of the child stroller fully folded and closed with the upper push rod rest;
FIG. 6 is a first perspective view of the seat pocket assembly of the stroller of FIG. 5 fully folded and closed with the upper push rod rest;
FIG. 7 is a second perspective view of the seat pocket assembly of the stroller of FIG. 5 fully folded and closed with the upper push rod rest;
FIG. 8 is a front view of the stroller in a folded condition;
FIG. 9 is a first perspective view of the stroller of FIG. 8 during folding;
FIG. 10 is a second perspective view of the stroller of FIG. 8 during folding;
FIG. 11 is a front view of the stroller in a collapsed condition;
FIG. 12 is a first perspective view of the stroller of FIG. 11 in a collapsed condition;
FIG. 13 is a second perspective view of the stroller of FIG. 11 in a collapsed condition;
FIG. 14 is a cross-sectional view taken along the direction A-A in FIG. 11;
fig. 15 is an exploded view of the stroller.
Wherein:
1-a frame; 10-front support; 10 a-front struts; 10 b-bottom bar; 10 c-a connection; 100-a body portion; 101-left guide; 102-right guide; 11-a rear bracket; 11 a-left rear strut; 11 b-right rear strut; 11 c-connecting sleeve; 12-pushing up the rod rack; 13-pushing down the rod rack; 13 a-lower left pushrod; 13 b-lower right pushrod;
2-seat pocket assembly; 20-seat board; 21-a grab rail; 22-a backrest bar; 23-front stop; 24-pedaling; 25-a base; 26-connecting piece;
3-front wheel assembly;
4-rear wheel assembly;
a, b-inclined axis; c-a rotating shaft; d1, d2, d3, d4, d5, d6, d7, d 8-inclined plane.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings. The invention will be further described with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. In the following embodiments, the terms "front", "rear", "upper" and "lower" are used with reference to fig. 1, where "front" refers to the left side in fig. 1, and "rear" refers to the right side in fig. 1. Accordingly, the orientation and positional relationship described in this disclosure are merely for convenience of description and to simplify the description, and are not indicative or implying that the apparatus or elements in question must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present disclosure.
As shown in fig. 1 to 15, the present embodiment provides a foldable stroller having an unfolded state and a folded state, and specifically includes a frame 1, front and rear wheel assemblies 2 and 3, a seat pocket assembly 4, and a locking mechanism for locking the stroller in the unfolded state. The frame 1 and the seat pocket assembly 1 are foldable themselves, respectively, and the seat pocket assembly 4 is foldable relative to the frame 1.
As shown in fig. 1 and 2, the vehicle frame 1 includes a front bracket 10, a rear bracket 11, and a putter frame, in which: the front bracket 10 further includes a front strut 10a extending in the up-down direction, a bottom strut 10b connected to a lower end portion of the front strut 10a, and a connecting portion 10c fixedly connected to an upper end of the front strut 10a, and a pair of front wheel assemblies 3 are respectively connected to both ends of the bottom strut 10 b. The rear bracket 11 further includes left and right rear struts 11a and 11b extending in the up-down direction, respectively, and a set of rear wheel assemblies 4 are connected to lower ends of the left and right rear struts 11a and 11b, respectively. The putter frame includes an upper putter frame 12 and a lower putter frame 13, wherein the lower putter frame 13 further includes a left lower putter 13a and a right lower putter 13b extending in the up-down direction, respectively. In the embodiment shown in fig. 1 to 15, the upper end portion of the left rear strut 11a, the upper end portion of the right rear strut 11b, the lower end portion of the left lower push rod 13a, and the lower end portion of the right lower push rod 13b are all rotatably connected to the connection portion 10c of the front bracket 10, and the connection portion or junction of the front strut 10a and the connection portion 10c is located at the most middle, the connection portion of the left rear strut 11a and the right rear strut 11b and the connection portion 10c is located at the most left and the most right, respectively, the connection portion of the left lower push rod 13a and the connection portion 10c is located between the connection portion 10a of the front strut 10a and the connection portion 10c, and the connection portion of the right rear strut 11b and the connection portion 10 c.
As shown in fig. 2, 4, 6, 7, the lower end portion of the upper push rod frame 12 passes between the left lower push rod 13a and the right lower push rod 13b, and the lower non-end portion of the upper push rod frame 12 is rotatably connected to the left lower push rod 13a and the right lower push rod 13b by a rotation shaft. In the unfolded state, the length extension directions of the front support rod 10a, the left lower push rod 13a, the right lower push rod 13b and the upper push rod frame 12 are consistent, and the overall frame contour line is smooth and concise. When folding, the upper push rod frame 12 rotates downward relative to the left lower push rod 13a and the right lower push rod 13b, the left lower push rod 13a and the right lower push rod 13b rotate relative to the front bracket 10, and the front bracket 10 rotates relative to the left rear support rod 11a and the right rear support rod 11 b.
Further, in order to improve the stability of the frame 1 and reduce the folded volume of the frame 1, the following configuration is provided. As shown in fig. 11 to 15, the connection part 10c has a body part 100 extending in the left-right direction of the cart, and the middle of the body part 100 is cylindrical, and the cylindrical body part has an axis extending in the horizontal direction. The lower end part of the left lower push rod 13a and the lower end part of the right lower push rod 13b are respectively rotatably sleeved on the main body part 100 of the connecting part 10 c; the upper end of the left rear strut 11a is rotatably connected to the left side of the connecting part 10c via an inclined shaft a extending in the left-right direction of the cart and inclined; the upper end portion of the right rear strut 11b is rotatably connected to the right side of the connecting portion 10c via an inclined shaft b extending in the left-right direction of the cart and inclined. In this way, when the left rear strut 11a and the right rear strut 11b are pivoted together relative to the front bracket 10, the lower end portion of the left rear strut 11a and the lower end portion of the right rear strut 11b are respectively folded toward the inside of the stroller, so that when the stroller is in the folded state, the distance between the lower end portion of the left rear strut 11a and the lower end portion of the right rear strut 11b is smaller than the distance between the two in the unfolded state. As shown in fig. 13, in a preferred embodiment, in the folded state, the distance between the lower end portion of the left rear strut 11a and the lower end portion of the right rear strut 11b is shortened such that the two rear wheel assemblies 4 are located inside the two front wheel assemblies 3. As shown in fig. 14, both the inclined shaft a and the inclined shaft b are fixedly connected to the connecting portion 10 c. But in other embodiments they may be provided as one piece.
Further, as shown in fig. 13 to 15, the connecting portion 10c further includes a left guide portion 101 and a right guide portion 102 fixedly sleeved on the outer periphery of the main body portion 100, wherein both ends of the main body portion 100, the left guide portion 101 and the right guide portion 102 have inclined surfaces d1, d2, d3, d4, respectively, upper end portions of the left rear strut 11a and the right rear strut 11b are rotatably sleeved on the inclined shafts a and b, respectively, and have inclined surfaces d5, d6, d7, d8, respectively, wherein, on the left side, the inclined surface d1 of the main body portion 100 and the inclined surface d3 of the left guide portion 101 are matched with the inclined surfaces d5 and d6 of the left rear strut 11a, respectively; on the right side, the inclined surface d2 of the main body portion 100 and the inclined surface d4 of the right guide portion 101 are respectively engaged with the inclined surface d7 and the inclined surface d8 of the right rear stay 11 a. Thus, when the left rear strut 11a is rotated and closed relative to the front bracket 10, the two inclined surfaces of the left rear strut 11a are in sliding fit with the two inclined surfaces on the left side of the connecting part 10 c; when the right rear supporting rod 11b is close to the front support 10, the two inclined planes of the right rear supporting rod 11b are in sliding fit with the two inclined planes on the right side of the connecting part 10c, so that the rotation and transverse folding processes of the left rear supporting rod 11a and the right rear supporting rod 11b are stable, interference is avoided, and meanwhile, the structure is stable in connection and fit of all parts. In addition, the arrangement of the left guide portion 101 and the right guide portion 102 is further limited to both sides of the left lower push rod 13a and the right lower push rod 13b, respectively, which contributes to further improving the connection stability between the left lower push rod 13a and the right lower push rod 13b and the front bracket 10. At the same time, the appearance of the place is more beautiful.
As shown in fig. 7, in order to further enhance the stability of the stroller in the unfolded state, the left rear strut 11a is provided to be inclined from rear to front toward the right of the stroller, and the right rear strut 11b is provided to be inclined from rear to front toward the left of the stroller, and the distance between the upper end portion of the left rear strut 11a and the upper end portion of the right rear strut 11b is smaller than the distance between the lower end portion of the left rear strut 11a and the lower end portion of the right rear strut 11 b.
Further, as shown in fig. 5 to 7, for convenience of folding, the rear bracket 11 further includes connection sleeves 11c respectively fitted over the left rear strut 11a and the right rear strut 11b to connect them, and when the stroller is switched from the unfolded state to the folded state, the connection sleeves 11c allow the left rear strut 11a and the right rear strut 11b to move toward the inside of the stroller. Through the arrangement of the connecting sleeve 11c, the left rear supporting rod 11a and the right rear supporting rod 11b can be folded or unfolded better synchronously, and meanwhile, the stability of the frame 1 in an unfolded state is improved to a certain extent.
As shown in fig. 1 and 2, the seat bag assembly 2 includes a seat plate 20, a grab bar 21, a backrest bar 22, a front stopper 23, a pedal 24, and a connection mechanism for connecting the seat bag assembly 2 to the vehicle frame 1.
As shown in fig. 1 to 7, in a specific embodiment, the backrest bar 22 is rotatably connected to the rear portion of the seat plate 20 and extends in the up-down direction, the rear portion of the grab bar 21 is rotatably connected to the backrest bar 22, and the upper and lower ends of the front stopper 23 are rotatably connected to the front portion of the grab bar 21 and the front portion of the seat plate 20, respectively, and the foothold 24 is rotatably connected to the front portion of the seat plate 20. The connection mechanism includes a base 25 and a connection member 26, the base 25 is located below the seat plate 20, the connection member 26 is fixedly connected to the rear portion of the base 25 and extends upward from front to rear, and an upper end portion of the connection member 26 and a lower end portion of the upper putter frame 12 are rotatably connected to the rotation shaft c. When the seat pocket assembly 2 is in the unfolded state, the base 25 has a supporting surface extending in a horizontal direction, the seat plate 20 extends in the horizontal direction and is pressed against the supporting surface, and a seating space for a child to sit is defined between the seat plate 20, the backrest rod 22, the grab rail 21 and the front stopper 23. When the seat pocket assembly 2 is switched from the unfolding state to the folding state, the connecting piece 26 rotates backwards to be close to the upper push rod frame 12, and sequentially drives the seat plate 20, the front baffle piece 23, the grab rail 21 and the backrest rod 22 to rotate and fold up on the upper push rod frame 12, and meanwhile, the pedals 24 can be pushed to rotate relative to the seat plate 20 and draw up towards the front baffle piece 23. As shown in fig. 6, the seat pocket assembly 2 is very flat and regular when in the folded state.
Further, the seat plate 20 and the base 25 may be connected to each other relatively fixedly or rotatably. When the seat pan 20, the grab rail 21, the backrest rail 22, the front stopper 23, and the footrests 24 are rotatably connected to each other, it is preferable that the seat body as a whole be horizontally rotatable with respect to the vehicle frame 1, so that the seat pocket assembly 2 has a use state facing the front of the cart and a use state facing the rear of the cart.
Further, the locking mechanism includes a locking device for locking the frame 1 itself, a locking device for locking the seat pocket assembly 2 itself, and a locking device for locking the seat pocket assembly 2 relative to the frame 1. Typically, the locking means between the two parts comprises a locking member (e.g. a latch, a rack, etc.) movably (e.g. rotatably or slidably) arranged on one of the parts, a mating member (e.g. a locking groove, a tooth slot, a locking hole, etc.) arranged on the other part, and an elastic member (e.g. a spring, an elastic piece, etc.). The locking is achieved by the cooperation of the locking member and the mating member, the unlocking is achieved by the separation of the locking member and the mating member, and the elastic member is used for making the locking device tend to be in the locked state. The specific locking device may be provided in a manner conventional in the art or with reference to a locking device provided on an existing cart structure, and is not particularly limited, and will not be described herein.
As shown in fig. 1 to 15, according to the stroller of the present embodiment, when the stroller is in the unfolded state, the overall structure is novel and stable. When the stroller needs to be folded, as shown in fig. 3 to 7, the base 25 is first rotated to close in a direction approaching the upper push rod frame 12, so that the seat pocket assembly 2 is folded and folded with respect to the frame 1. Then, as shown in fig. 8 to 14, the upper push rod frame 12 drives the seat pocket assembly 2 to rotate in a direction approaching the lower push rod frame 13, and then the lower push rod frame 13 rotates forward and downward to approach the front support 10, and simultaneously, the front support 10 and the rear support 11 rotate towards each other, so that folding is completed, and folding operation is convenient. As shown in fig. 11 to 14, when the stroller is fully folded, the seat pocket assembly 2, the upper push rod frame 12, the lower push rod frame, the front bracket 10, the rear bracket 11 are close to each other from front to rear, the rear wheel assembly 4 is positioned inside the front wheel assembly 3, the seat pocket assembly 2 is positioned on the front side in the front-rear direction, the front bracket 10 and the rear bracket 11 are positioned on the rear side, and the upper push rod frame 12 and the lower push rod frame 13 are positioned in the middle; in the left-right direction, a left rear strut 11a and a right rear strut 11b are located on the left and right sides of the front strut 10a, respectively; the left lower push rod 13a and the right lower push rod 13b are located at left and right sides of the upper push rod frame 12. The whole baby carriage is flat and compact after being folded, and has small and regular volume after being folded.
In other embodiments according to the present invention, the connection manner between the front bracket 10, the rear bracket 11 and the lower putter frame 13 may be replaced with a coaxial rotation connection manner, and in particular, the connection portion 10c of the front bracket 10, the left rear strut 11a, the right rear strut 11b, the left lower putter 13a, the right lower putter 13b may be coaxially rotated by one horizontally extending rotation shaft, as compared with the above-described embodiments. Compared with the existing child cart, the cart has the advantages of being flat after being folded and small in folding size.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (15)
1. A child stroller, the child stroller has an unfolded state and a folded state, the child stroller includes a frame, a front wheel assembly and a rear wheel assembly disposed at a bottom of the frame, a seat pocket assembly, and a locking mechanism for locking the child stroller in the unfolded state, the child stroller being characterized in that:
the frame comprises a front bracket, a rear bracket and a push rod bracket, and the push rod bracket comprises an upper push rod bracket and a lower push rod bracket which is rotationally connected with the upper push rod bracket; the front support, the rear support and the lower push rod frame are rotatably connected, and a third person is rotatably connected with one of the front support, the rear support and the lower push rod frame, or the front support, the rear support and the lower push rod frame are in common pivot connection;
the seat pocket assembly is rotationally connected with the upper push rod frame, and the connection part of the seat pocket assembly and the upper push rod frame is positioned below the connection part of the upper push rod frame and the lower push rod frame;
when the child stroller is in a folded state, the seat pocket assembly, the upper push rod frame, the lower push rod frame, the front support and the rear support are sequentially closed from front to back;
the connecting position of the lower push rod frame and the upper push rod frame is positioned at the upper end part of the lower push rod frame, and the connecting position of the upper push rod frame and the lower push rod frame is positioned at the non-end part position of the upper push rod frame.
2. The stroller of claim 1, wherein: when the child stroller is converted from the unfolded state to the folded state, the seat pocket assembly rotates backwards to be close to the upper push rod frame, the upper push rod frame rotates downwards to be close to the lower push rod frame, and the lower push rod frame rotates forwards and downwards to be close to the front support.
3. The stroller of claim 1, wherein: the front support is rotationally connected with the rear support, and when the child stroller is in a unfolded state, a rotation axis line between the front support and the rear support horizontally extends or obliquely extends in the left-right direction of the child stroller.
4. A stroller according to claim 1 or 3, wherein: the lower push rod frame is rotationally connected with the front support, and when the child stroller is in a unfolding state, the rotating shaft line between the lower push rod frame and the front support, the rotating shaft line between the upper push rod frame and the lower push rod frame and the rotating shaft line between the upper push rod frame and the seat pocket assembly are mutually parallel and horizontally extend along the left-right direction of the child stroller.
5. The stroller of claim 1, wherein: the connecting position of the front support and the rear support and/or the push rod frame is positioned at the upper end part of the front support, the connecting position of the rear support and the front support and/or the push rod frame is positioned at the upper end part of the rear support, and the connecting position of the push rod frame and the front support and/or the rear support is positioned at the lower end part of the push rod frame; the connecting position of the upper push rod frame and the seat pocket assembly is the lower end part of the upper push rod frame, and the connecting position of the seat pocket assembly and the upper push rod frame is the rear lower part of the seat pocket assembly.
6. The stroller of claim 1, wherein: the rear support comprises a left rear support rod and a right rear support rod which extend along the up-down direction respectively, the lower end parts of the left rear support rod and the right rear support rod are respectively provided with the rear wheel assembly, and the upper end parts of the left rear support rod and the right rear support rod are respectively connected with the front support and/or the lower push rod frame in a rotating way;
and/or the front bracket comprises a front supporting rod extending along the up-down direction and a bottom rod connected with the lower end part of the front supporting rod, and the front wheel assembly is respectively arranged at the two ends of the bottom rod;
and/or the lower push rod frame comprises a left lower push rod and a right lower push rod which extend along the up-down direction respectively, the lower end part of the upper push rod frame passes through the space between the left lower push rod and the right lower push rod, and the upper push rod frame is rotationally connected with the left lower push rod and the right lower push rod.
7. The stroller of claim 6, wherein: the upper end part of the left lower push rod, the upper end part of the right lower push rod and the lower part of the upper push rod frame are coaxially and rotatably connected.
8. The stroller of claim 6, wherein: the front support comprises a connecting part fixedly connected with the upper end of the front support rod or integrally arranged, the connecting part extends along the left-right direction of the cart, the left rear support rod, the right rear support rod, the left lower push rod and the right lower push rod are respectively connected with the connecting part in a rotating way and respectively rotate around a first rotating axis, a second rotating axis, a third rotating axis and a fourth rotating axis relative to the connecting part, and the first rotating axis, the second rotating axis, the third rotating axis and the fourth rotating axis are overlapped and horizontally extend along the left-right direction of the cart.
9. The stroller of claim 6, wherein: the front support comprises a connecting part fixedly connected with the upper end of the front support rod or integrally arranged with the upper end of the front support rod, the connecting part extends along the left-right direction of the trolley, the left rear support rod, the right rear support rod, the left lower push rod and the right lower push rod are respectively connected with the connecting part in a rotating way and respectively rotate around a first rotating axis, a second rotating axis, a third rotating axis and a fourth rotating axis relative to the connecting part, the third rotating axis and the fourth rotating axis are overlapped and horizontally extend along the left-right direction of the trolley, the first rotating axis and the second rotating axis respectively extend obliquely along the left-right direction of the trolley, and when the left rear support rod is rotated and closed relative to the front support rod, the lower end part of the left rear support rod is folded inwards of the child trolley; when the right rear supporting rod is close to the front supporting rod, the lower end part of the right rear supporting rod is folded towards the inner side of the baby stroller, so that when the baby stroller is in a folded state, the distance between the lower end part of the left rear supporting rod and the lower end part of the right rear supporting rod is smaller than the distance between the lower end part of the left rear supporting rod and the lower end part of the right rear supporting rod in an unfolded state.
10. A stroller according to claim 8 or 9, wherein: the front support rod is connected with the connecting portion or the joint is located in the middle of the connecting portion, the left rear support rod is connected with the right rear support rod is located on the left side and the right side of the connecting portion respectively, the left lower support rod is connected with the connecting portion and the left rear support rod is connected with the connecting portion, the right lower support rod is connected with the connecting portion and the connecting portion is connected with the front support rod and the connecting portion, and the right lower support rod is connected with the connecting portion and the right rear support rod is connected with the connecting portion.
11. The stroller of claim 9, wherein: the left side of the connecting part and the left rear supporting rod are respectively provided with a matched inclined plane, and when the left rear supporting rod is close to the front supporting rod, the inclined planes on the left side of the connecting part and the left rear supporting rod are in sliding fit; the right side of connecting portion and be formed with matched with inclined plane on the back branch of right respectively, back branch of right for when preceding branch draws close, the right side of connecting portion the inclined plane on the back branch of right matches in a sliding way.
12. The stroller of claim 9, wherein: the rear support further comprises connecting sleeves respectively sleeved on the left rear support rod and the right rear support rod so as to connect the left rear support rod and the right rear support rod, and when the stroller is switched from an unfolded state to a folded state, the connecting sleeves allow the left rear support rod and the right rear support rod to move towards the inner side of the stroller.
13. The stroller of claim 6, wherein: when the child stroller is in a unfolded state, the left rear supporting rod is inclined from back to front to the right of the stroller, the right rear supporting rod is inclined from back to front to the left of the stroller, and the distance between the upper end part of the left rear supporting rod and the upper end part of the right rear supporting rod is smaller than the distance between the lower end part of the left rear supporting rod and the lower end part of the right rear supporting rod;
and/or when the child stroller is in a unfolded state, the lengths of the front support rod, the lower push rod frame and the upper push rod frame are consistent in extending direction;
and/or, when the child stroller is in a folded state, the distance between the lower end part of the left rear supporting rod and the lower end part of the right rear supporting rod is smaller than the distance between the lower end part of the left rear supporting rod and the lower end part of the right rear supporting rod when the child stroller is in an unfolded state;
and/or, when the child stroller is in a folded state, the rear wheel assembly is positioned on the inner side of the front wheel assembly;
and/or, when the child stroller is in a folded state, the seat pocket assembly is positioned at the front side in the front-rear direction, the front bracket and the rear bracket are positioned at the rear side, and the upper push rod frame and the lower push rod frame are positioned in the middle; in the left-right direction, the left rear supporting rod and the right rear supporting rod are respectively positioned at the left side and the right side of the front supporting rod; the left lower push rod and the right lower push rod are positioned at the left side and the right side of the upper push rod frame.
14. A stroller according to any of claims 1-3, 5-9, 11-13, characterized in that: the seat pocket component is of a foldable structure and has an unfolding state and a folding state; and/or the seat pocket assembly is rotatably provided with respect to the frame about a rotation axis extending in the up-down direction, so that the seat pocket assembly has a use state toward the front of the cart and a use state toward the rear of the cart.
15. The stroller of claim 14, wherein: the seat pocket assembly comprises a seat plate, a backrest rod, a grab rail, a front baffle piece, a pedal and a connecting mechanism, wherein the backrest rod is rotatably connected to the rear part of the seat plate and extends along the up-down direction, the rear part of the grab rail is rotatably connected with the backrest rod, the upper end part and the lower end part of the front baffle piece are respectively and relatively rotatably connected with the grab rail and the seat plate, the upper end part of the pedal is rotatably connected with the front part of the seat plate, the connecting mechanism comprises a base and a connecting piece, the base is positioned below the seat plate, the connecting piece is fixedly connected to the rear part of the base and extends from front to back upwards, the upper end part of the connecting piece is rotatably connected with the upper push rod frame, when the seat pocket assembly is in a unfolded state, the seat plate extends along the horizontal direction and is pressed on the base, and a space for taking a child is limited between the seat plate, the backrest rod, the grab rail and the front baffle piece; when the seat pocket assembly is switched from the unfolding state to the folding state, the connecting piece rotates backwards to be close to the upper push rod frame, and the seat plate, the front baffle piece, the grab rail and the backrest rod are sequentially driven to rotate and fold towards the upper push rod frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210717429.7A CN115180014B (en) | 2022-06-23 | 2022-06-23 | Foldable baby carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210717429.7A CN115180014B (en) | 2022-06-23 | 2022-06-23 | Foldable baby carriage |
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| CN115180014A CN115180014A (en) | 2022-10-14 |
| CN115180014B true CN115180014B (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210717429.7A Active CN115180014B (en) | 2022-06-23 | 2022-06-23 | Foldable baby carriage |
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| CN (1) | CN115180014B (en) |
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| Publication number | Publication date |
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| CN115180014A (en) | 2022-10-14 |
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