CN115180014A - Foldable stroller - Google Patents
Foldable stroller Download PDFInfo
- Publication number
- CN115180014A CN115180014A CN202210717429.7A CN202210717429A CN115180014A CN 115180014 A CN115180014 A CN 115180014A CN 202210717429 A CN202210717429 A CN 202210717429A CN 115180014 A CN115180014 A CN 115180014A
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- China
- Prior art keywords
- push rod
- stroller
- frame
- rod
- bracket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000013459 approach Methods 0.000 description 7
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
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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
- B62B9/10—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
Abstract
The invention relates to a child stroller with an unfolding state and a folding state, which comprises a stroller frame, a front wheel assembly, a rear wheel assembly, a seat bag assembly and a locking mechanism, wherein the front wheel assembly and the rear wheel assembly are arranged at the bottom of the stroller frame. The frame comprises a front bracket, a rear bracket and a push rod frame, and the push rod frame comprises an upper push rod frame and a lower push rod frame which is rotationally connected with the upper push rod frame; the front support, the rear support and the lower push rod support are rotationally connected, the third support is rotationally connected with one of the front support, the rear support and the lower push rod support, or the front support, the rear support and the lower push rod support are rotationally connected together in a co-pivot mode. The seat pocket assembly is rotatably 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 baby 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. This children's shallow is under the expansion state, and the frame is stable, and under fold condition, folding small, storage and transportation are convenient.
Description
Technical Field
The invention relates to a stroller, in particular to a foldable stroller.
Background
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 stroller frame, such as the front wheel bracket, the rear wheel bracket, the cushion rod, 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 key for enabling the stroller product to have market competitiveness is to design the stroller with novel shape, small folding volume, convenient storage and transportation and convenient operation.
Disclosure of Invention
The invention aims to provide a novel foldable stroller which is small in size and convenient to store and transport after being folded.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a children's shallow, children's shallow has expansion state and fold condition, children's shallow include the frame, set up in the front wheel subassembly and the rear wheel subassembly of the bottom of frame, seat pocket subassembly, be used for locking children's shallow in expansion state's locking mechanical system.
The frame comprises a front bracket, a rear bracket and a push rod frame, wherein the push rod frame comprises an upper push rod frame and a lower push rod frame which is rotationally connected with the upper push rod frame; the front bracket, the rear bracket and the lower push rod bracket are rotationally connected, a third bracket is rotationally connected with one of the front bracket, the rear bracket and the lower push rod bracket, or the front bracket, the rear bracket and the lower push rod bracket are rotationally connected together by a pivot;
the seat pocket assembly is rotatably 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 baby 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 drawn together from front to back.
In some embodiments, when the stroller is converted from the unfolded state to the folded state, the seat pocket assembly rotates backward to be close to the upper push rod frame, the upper push rod frame rotates downward to be close to the lower push rod frame, and the lower push rod frame rotates forward and downward to be close to the front support.
In some preferred embodiments of the stroller according to the present invention, the front frame is rotatably connected to the rear frame, and the rotation axis line between the front frame and the rear frame 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 rotationally connected with the front support, when the stroller is in the unfolded state, the lower push rod frame is parallel to the rotation axis between the front supports, the rotation axis between the upper push rod frame and the lower push rod frame and the rotation axis between the upper push rod frame and the seat pocket assembly, and the rotation axes are horizontally extended along the left and right directions of the stroller.
In some embodiments, the connection position of the front bracket and the rear bracket and/or the lower push rod bracket is located at the upper end part of the front bracket, the connection position of the rear bracket and the front bracket and/or the push rod bracket is located at the upper end part of the rear bracket, and the connection position of the lower push rod bracket and the front bracket and/or the rear bracket is located at the lower end part of the lower push rod bracket; the utility model discloses a seat pocket assembly, including lower push rod frame, upper push rod frame, lower push rod frame, upper push rod frame's hookup location is located the upper end of lower push rod frame, upper push rod frame with the hookup location of lower push rod frame is located the non-tip position of upper push rod frame, upper push rod frame with the hookup location of seat pocket subassembly does the lower part of seat pocket subassembly.
In some embodiments, the rear support comprises a left rear support rod and a right rear support rod respectively extending in the up-down direction, the lower end portions of the left rear support rod and the right rear support rod are respectively provided with the rear wheel assemblies, and the upper end portions of the left rear support rod and the right rear support rod are respectively rotatably connected with the front support and/or the lower push rod support.
In some embodiments, the front bracket includes a front support rod extending in an up-down direction and a bottom rod connected to a lower end portion of the front support rod, and the front wheel assembly is disposed at both end portions of the bottom rod, respectively.
In some embodiments, the lower push rod frame comprises a left lower push rod and a right lower push rod which extend along the up-down direction, the lower end of the upper push rod frame passes through 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 portion of the left lower push rod, the upper end portion of the right lower push rod and the lower portion of the upper push rod frame are coaxially and rotationally 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 support includes a connecting portion fixedly connected to or integrally provided with an upper end of the front strut, the connecting portion 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 are respectively rotatably connected to the connecting portion and are respectively rotatable about a first rotation axis line, a second rotation axis line, a third rotation axis line, and a fourth rotation axis line with respect to the connecting portion, and the first rotation axis line, the second rotation axis line, the third rotation axis line, and the fourth rotation axis line are coincident and extend horizontally in the left-right direction of the stroller.
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 can be rotatably connected through the same rotating shaft.
In still other embodiments according to the present invention, the front frame includes a connecting portion fixedly connected to or integrally provided with an upper end of the front strut, the connecting portion extends along 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 are respectively rotatably connected to the connecting portion and are respectively rotatable around a first rotation axis, a second rotation axis, a third rotation axis, and a fourth rotation axis with respect to the connecting portion, wherein the third rotation axis and the fourth rotation axis are coincident and horizontally extend along the left-right direction of the stroller, the first rotation axis and the second rotation axis respectively extend obliquely along the left-right direction of the stroller, and when the left rear strut is rotatably closed with respect to the front strut, a lower end of the left rear strut is closed toward an inner side of the stroller; when the right rear supporting rod is close relative 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. Furthermore, 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 mode through inclined rotating shafts. The left lower push rod and the right lower push rod can be respectively sleeved on the periphery of the connecting part in a rotating mode.
Preferably, the front strut with the junction of connecting portion (during fixed connection) or linking department (during integral connection) is located the middle part of connecting portion, left side back branch, right back branch with the junction of connecting portion is located respectively the left side and the right side of connecting portion, left side down push rod with the junction of connecting portion is located the front strut with the junction of connecting portion left side back branch with between the junction of connecting portion, right side down push rod with the junction of connecting portion is located the front strut with the junction of connecting portion right back branch with between the junction of connecting portion.
Preferably, the left side of the connecting part and the left rear strut are respectively provided with a matched inclined surface, and when the left rear strut is closed relative to the front strut, the inclined surfaces on the left side of the connecting part and the left rear strut are in sliding fit with each other; the right side of connecting portion and also be formed with matched with inclined plane on the back branch of the right side respectively, back branch of the right side for when preceding branch was drawn close, the right side of connecting portion inclined plane on the back branch of the right side is sliding fit mutually. The rotation and transverse furling processes of the left and right rear supporting rods can be more stable through the arrangement of the inclined planes, and interference is avoided.
In some embodiments, the rear frame further comprises a connecting sleeve respectively sleeved on the left rear supporting rod and the right rear supporting rod so as to connect the left rear supporting rod and the right rear supporting rod, and the connecting sleeve allows the left rear supporting rod and the right rear supporting rod 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, when the stroller is in the unfolded state, the left rear strut is inclined from back to front to the right of the stroller, the right rear strut is inclined from back to front to the left of the stroller, and a distance between an upper end portion of the left rear strut and an upper end portion of the right rear strut is smaller than a distance between a lower end portion of the left rear strut and a lower end portion of the right rear strut.
In some preferred embodiments, when the stroller is in the unfolded state, the front support bar, the lower push rod frame and the upper push rod frame have the same length extending direction.
In some preferred embodiments, when the stroller is in the folded state, a distance between a lower end of the left rear strut and a lower end of the right rear strut is smaller than a distance between a lower end of the left rear strut and a lower end of the right rear strut when the stroller is in the unfolded state.
In some preferred embodiments, the rear wheel assembly is located inboard of the front wheel assembly when the stroller is in the collapsed position.
In some preferred embodiments, the stroller is in a folded state, 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 frame and the lower push rod frame are located in the middle in a front-rear direction; in the left-right direction, the left rear strut and the right rear strut are respectively positioned at the left side and the right side of the front strut; 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 line extending in the up-down direction so that the seat pocket assembly has a use state toward the front of the stroller and a use state toward the rear of the stroller.
In some embodiments, the seat pocket assembly includes a seat plate, a back lever rotatably connected to a rear portion of the seat plate and extending in an up-down direction, a grab bar rotatably connected to a rear portion of the grab bar, a front stopper rotatably connected to a rear portion of the back lever, upper and lower ends of the front stopper being relatively rotatably connected to the grab bar and the seat plate, respectively, and an upper end of the pedal being rotatably connected to a front portion of the seat plate, and the connection mechanism includes a base positioned below the seat plate and a connection member fixedly connected to a rear portion of the base and extending upward from front to rear, an upper end of the connection member being rotatably connected to the upper push bar frame, the seat plate extending in a horizontal direction and being pressed against the base when the seat pocket assembly is in an unfolded state, a seating space for seating a child is defined between the seat plate, the back lever, the grab bar, and the front stopper; when the seat pocket assembly is switched from the unfolded state to the folded state, the connecting piece rotates backwards to be close to the upper push rod frame, and the seat board, the front blocking piece, the handrail rod and the backrest rod are sequentially driven to rotate towards the upper push rod frame to be folded.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the 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 the stroller in a deployed state;
FIG. 2 is a perspective view of the stroller in an expanded position;
FIG. 3 is a front view of the seat plate of the stroller drawn toward the back bar, with the frame in an expanded position;
FIG. 4 is a perspective view of the seat plate of the stroller of FIG. 3 approaching the back rest bar;
FIG. 5 is a front view of the seat pocket assembly of the stroller fully folded and drawn closer to the upper push rod frame;
FIG. 6 is a first perspective view of the seat pocket assembly of the stroller of FIG. 5 fully folded and drawn toward the upper push bar frame;
FIG. 7 is a second perspective view of the seat pocket assembly of the stroller of FIG. 5 fully folded and drawn toward the upper push bar frame;
FIG. 8 is a front view of the stroller during folding;
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 in a folded state;
FIG. 11 is a front view of the stroller in a collapsed position;
FIG. 12 is a first perspective view of the stroller of FIG. 11 in a collapsed position;
FIG. 13 is a second perspective view of the stroller of FIG. 11 in a collapsed position;
FIG. 14 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 11;
fig. 15 is an exploded view of the stroller.
Wherein:
1-a vehicle frame; 10-a front support; 10 a-anterior struts; 10 b-a bottom bar; 10 c-a connecting part; 100-a body portion; 101-a left guide; 102-a right guide; 11-rear support; 11 a-left rear strut; 11 b-right rear strut; 11 c-a connecting sleeve; 12-upper push rod frame; 13-lower push rod rack; 13 a-left lower push rod; 13 b-right lower push rod;
2-seat pocket assembly; 20-a seat board; 21-grab rail; 22-a back rest bar; 23-a front stop; 24-pedaling; 25-a base; 26-a connector;
3-a front wheel assembly;
4-a rear wheel assembly;
a, b-oblique axis; c-a rotating shaft; d1, d2, d3, d4, d5, d6, d7, d 8-slopes.
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 and preferred embodiments thereof. In the following embodiments, it should be noted that the terms "front", "back", "upper" and "lower" refer to fig. 1, the term "front" refers to the left side of fig. 1, and the term "back" refers to the right side of fig. 1. Thus, the orientations and positional relationships described in the present application are merely for convenience in describing the invention and simplifying the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, only a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
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, a front wheel assembly 2 and a rear wheel assembly 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 can be folded in relative to the frame 1.
As shown in fig. 1 and 2, the frame 1 includes a front bracket 10, a rear bracket 11, and a push rod bracket, wherein: the front frame 10 further includes a front rod 10a extending in the vertical direction, a bottom rod 10b connected to a lower end of the front rod 10a, and a connecting portion 10c fixedly connected to an upper end of the front rod 10a, and a set of front wheel assemblies 3 are connected to both ends of the bottom rod 10 b. The rear bracket 11 further includes a left rear stay 11a and a right rear stay 11b extending in the up-down direction, respectively, and a set of rear wheel assemblies 4 are connected to lower end portions of the left rear stay 11a and the right rear stay 11b, respectively. The push rod frame includes an upper push rod frame 12 and a lower push rod frame 13, wherein the lower push rod frame 13 further includes a left lower push rod 13a and a right lower push rod 13b extending in the up-down direction, respectively. In the specific embodiment shown in fig. 1 to 15, the upper end portion of the rear left strut 11a, the upper end portion of the rear right strut 11b, the lower end portion of the lower left strut 13a, and the lower end portion of the lower right strut 13b are all rotatably connected to the connecting portion 10c of the front bracket 10, and the connection or junction between the front strut 10a and the connecting portion 10c is located at the middle most, the connection between the rear left strut 11a and the connecting portion 10c and between the rear right strut 11b and the connecting portion 10c are located at the left most and the right most, respectively, the connection between the lower left strut 13a and the connecting portion 10c is located at the connection between the front strut 10a and the connecting portion 10c, and the connection between the lower right strut 13b and the connecting portion 10c is located at the connection between the front strut 10a and the connecting portion 10c, and between the connection between the rear right strut 11b and the connecting portion 10 c.
As shown in fig. 2, 4, 6, and 7, the lower end portion of the upper push rod frame 12 passes through between the left and right push rods 13a and 13b, and the lower non-end portion of the upper push rod frame 12 is rotatably connected to the left and right push rods 13a and 13b via a rotating 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 outline of the whole frame is smooth and concise. When the folding is performed, the upper push rod frame 12 rotates downward and approaches relative to the left and right push rods 13a, 13b, the left and right push rods 13a, 13b rotate and approach relative to the front frame 10, and the front frame 10 rotates and approaches relative to the left and right rear struts 11a, 11 b.
Further, in order to reduce the folded volume of the vehicle body frame 1 while improving the stability of the vehicle body frame 1, the following arrangement is performed. As shown in fig. 11 to 15, the connecting portion 10c has a main body portion 100 extending in the left-right direction of the cart, the middle portion of the main body portion 100 being cylindrical, the cylindrical main body portion having an axis line extending in the horizontal direction. The lower end of the left lower push rod 13a and the lower end 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 portion 10c via an inclined shaft a extending in the left-right direction of the cart and inclined; the upper end of the right rear stay 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 toward the front bracket 10, the lower end of the left rear strut 11a and the lower end 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 of the left rear strut 11a and the lower end of the right rear strut 11b is smaller than the distance between the lower end of the left rear strut 11a and the lower end of the right rear strut 11b in the unfolded state. In a preferred embodiment, as shown in fig. 13, in the folded state, the distance between the lower end of the left rear strut 11a and the lower end 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, the inclined axes a and 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 guiding portion 101 and a right guiding portion 102 fixedly sleeved on the periphery of the main portion 100, four of the two ends of the main portion 100, the left guiding portion 101 and the right guiding portion 102 respectively have inclined surfaces d1, d2, d3, d4, the upper ends of the left rear supporting rod 11a and the right rear supporting rod 11b respectively rotatably sleeved on the inclined shaft a and the inclined shaft b and respectively have inclined surfaces d5, d6, d7, d8, wherein, on the left side, the inclined surface d1 of the main portion 100 and the inclined surface d3 of the left guiding portion 101 respectively cooperate with the inclined surface d5 and the inclined surface d6 of the left rear supporting rod 11 a; on the right side, the inclined surface d2 of the main body portion 100, the inclined surface d4 of the right guide portion 101 are fitted with the inclined surface d7 and the inclined surface d8 of the right rear stay 11a, respectively. Thus, when the left rear support 11a rotates and approaches relative to the front bracket 10, the two inclined surfaces of the left rear support 11a are in sliding fit with the two inclined surfaces on the left side of the connecting part 10 c; when right back branch 11b closed for fore-stock 10, two inclined planes of right back branch 11b and two inclined planes on connecting portion 10c right side looks sliding fit for left back branch 11a, right back branch 11 b's rotation and the process of transversely drawing in are more steady, avoid interfering, and this kind of structure, the connection cooperation of each part is more stable simultaneously. Further, the arrangement of the left guide portion 101 and the right guide portion 102 is further restricted to both sides of the left lower push rod 13a and the right lower push rod 13b, respectively, contributing to further improving the connection stability between the left lower push rod 13a and the right lower push rod 13b and the front carrier 10. Meanwhile, the appearance of the part is more attractive.
As shown in fig. 7, in order to further enhance the stability of the stroller in the unfolded state, when the stroller is in the unfolded state, the left rear strut 11a is arranged to be inclined from back to front toward the right of the stroller, the right rear strut 11b is arranged to be inclined from back to front toward the left of the stroller, and the distance between the upper end of the left rear strut 11a and the upper end of the right rear strut 11b is smaller than the distance between the lower end of the left rear strut 11a and the lower end of the right rear strut 11 b.
Further, as shown in fig. 5 to 7, for the convenience of folding, the rear support 11 further includes a connecting sleeve 11c respectively sleeved on the left rear support rod 11a and the right rear support rod 11b to connect the two, and when the stroller is switched from the unfolded state to the folded state, the connecting sleeve 11c allows the left rear support rod 11a and the right rear support rod 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 and synchronously, and meanwhile, the stability of the frame 1 in the 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 back bar 22, a front stopper 23, pedals 24, and a connecting mechanism for connecting the seat bag assembly 2 to the frame 1.
As shown in fig. 1 to 7, in one embodiment, a back lever 22 is rotatably connected to a rear portion of a seat plate 20 and extends in the vertical direction, a rear portion of a grab bar 21 is rotatably connected to the back lever 22, upper and lower end portions of a front stopper 23 are rotatably connected to a front portion of the grab bar 21 and a front portion of the seat plate 20, respectively, and a foot pedal 24 is rotatably connected to a front portion of the seat plate 20. The connecting mechanism comprises a base 25 and a connecting piece 26, wherein the base 25 is positioned below the seat board 20, the connecting piece 26 is fixedly connected to the rear part of the base 25 and extends upwards from front to back, and the upper end part of the connecting piece 26 and the lower end part of the upper push rod frame 12 are rotatably connected to a rotating shaft c. When the seat bag assembly 2 is in the unfolded state, the base 25 has a support surface extending in the horizontal direction, and the seat plate 20 extends in the horizontal direction and is pressed against the support surface, and a seating space for seating a child is defined between the seat plate 20, the back rest lever 22, the grab bar 21, and the front stopper 23. When the seat pocket assembly 2 is switched from the unfolded state to the folded state, the connecting element 26 rotates backward to be close to the upper push rod frame 12, and in turn drives the seat plate 20, the front stopper 23, the armrest rod 21 and the backrest rod 22 to rotate and fold towards the upper push rod frame 12, and at the same time, can push the pedal 24 to rotate relative to the seat plate 20 and approach towards the front stopper 23. As shown in fig. 6, the seat pocket assembly 2 is very flat and regular in a folded state.
Further, the seat plate 20 and the base 25 may be fixedly connected to each other or may be rotatably connected to each other. When the seat pan 20, the grab bar 21, the back rest bar 22, the front stopper 23, and the footrest 24 are connected to each other so as to be relatively rotatable, it is preferable that the entire seat body be horizontally rotatable with respect to the vehicle frame 1, so that the seat pocket assembly 2 has both the use state facing the front side of the stroller and the use state facing the rear side of the stroller.
Further, the locking mechanism includes a locking device for locking the vehicle 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 with respect to the vehicle frame 1. Generally, a locking device between two components includes a locking member (e.g., a latch, a rack, etc.) movably (e.g., rotatably or slidably) disposed on one of the two components, an engaging member (e.g., a locking groove, a spline, a locking hole, etc.) disposed on the other component, and an elastic member (e.g., a spring, an elastic piece, etc.). The locking is achieved by the locking member engaging the mating member and the unlocking is achieved by the locking member being separated from the mating member, while the resilient member is used to bias the locking device into the locked state. The specific locking device can be set by adopting a conventional mode in the field or referring to a locking device arranged on the existing cart structure, and is not particularly limited and is not described in detail herein.
As shown in fig. 1 to 15, the stroller of the present embodiment has a novel overall shape and a stable structure when the stroller is in the unfolded state. When the stroller needs to be folded, as shown in fig. 3 to 7, the base 25 is first rotated to close the upper push rod frame 12, so that the seat pocket assembly 2 is folded with respect to the stroller 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 at the same time, the front support 10 and the rear support 11 rotate to approach each other, so that the folding is completed, and the folding operation is convenient. As shown in fig. 11 to 14, when the child stroller is completely folded, the seat pocket assembly 2, the upper push rod frame 12, the lower push rod frame, the front frame 10, and the rear frame 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 at the front side, the front frame 10 and the rear frame 11 are positioned at the rear side, and the upper push rod frame 12 and the lower push rod frame 13 are positioned in the middle in the front-rear direction; in the left-right direction, the left rear stay 11a and the right rear stay 11b are respectively located on the left and right sides of the front stay 10 a; the left lower push rod 13a and the right lower push rod 13b are located on the left and right sides of the upper push rod frame 12. The whole stroller is flat and compact after being folded, and has small and regular volume after being folded.
In other embodiments according to the present invention, compared to the above-mentioned embodiments, the connection manner among the front bracket 10, the rear bracket 11 and the lower push rod bracket 13 may be replaced by a coaxial rotation connection manner, and specifically, five coaxial rotation connections of the connection portion 10c of the front bracket 10, the left rear strut 11a, the right rear strut 11b, the left lower push rod 13a and the right lower push rod 13b may be implemented by a horizontally extending rotation shaft. Compared with the existing stroller, the stroller has the advantages of being flat after being folded and small in folding volume.
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 (15)
1. The utility model provides a children's shallow, children's shallow has expansion state and fold condition, children's shallow include the frame, set up in the front wheel subassembly and the rear wheel subassembly of the bottom of frame, seat pocket subassembly, be used for locking children's shallow in the locking mechanical system of expansion state, its characterized in that:
the frame comprises a front support, a rear support and a push rod frame, and the push rod frame comprises an upper push rod frame and a lower push rod frame which is rotatably connected with the upper push rod frame; the front bracket, the rear bracket and the lower push rod bracket are rotationally connected, a third bracket is rotationally connected with one of the front bracket, the rear bracket and the lower push rod bracket, or the front bracket, the rear bracket and the lower push rod bracket are rotationally connected together by a pivot;
the seat pocket assembly is rotatably 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 baby 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 drawn together from front to back.
2. The stroller of claim 1, wherein: when the stroller is converted from an unfolding state to a folding 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 downwards to be close to the front support.
3. The stroller of claim 1, wherein: the front support is rotatably connected with the rear support, and when the child stroller is in an unfolded state, a rotation axis 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 with the fore-stock rotates to be connected, when children's shallow is in the expansion state, the lower push rod frame with axis of rotation between the fore-stock, the upper push rod frame with axis of rotation between the lower push rod frame and the upper push rod frame with axis of rotation between the seat pocket subassembly is parallel to each other, and all along children's shallow left and right directions level extends.
5. The stroller of claim 1, wherein: the connecting position of the front bracket and the rear bracket and/or the lower push rod bracket is positioned at the upper end part of the front bracket, the connecting position of the rear bracket and the front bracket and/or the push rod bracket is positioned at the upper end part of the rear bracket, and the connecting position of the lower push rod bracket and the front bracket and/or the rear bracket is positioned at the lower end part of the lower push rod bracket; the utility model discloses a seat pocket assembly, including lower push rod frame, upper push rod frame, lower push rod frame, upper push rod frame's hookup location is located the upper end of lower push rod frame, upper push rod frame with the hookup location of lower push rod frame is located the non-tip position of upper push rod frame, upper push rod frame with the hookup location of seat pocket subassembly does the lower part of seat pocket subassembly.
6. The stroller of claim 1, wherein: the rear support comprises a left rear support rod and a right rear support rod which respectively extend along the vertical direction, the lower end parts of the left rear support rod and the right rear support rod are respectively provided with the rear wheel assemblies, and the upper end parts of the left rear support rod and the right rear support rod are respectively in rotary connection with the front support and/or the lower push rod support;
and/or the front bracket comprises a front support rod extending along the up-down direction and a bottom rod connected with the lower end part of the front support rod, and the two end parts of the bottom rod are respectively provided with the front wheel assemblies;
and/or the lower push rod frame comprises a left lower push rod and a right lower push rod which extend along the vertical direction respectively, the lower end part of the upper push rod frame penetrates through 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 fore-stock include with the upper end fixed connection of fore-stock or the connecting portion of an organic whole setting, connecting portion extend along the left right direction of shallow, left side back branch right back branch, left side push rod down, right side push rod down respectively with connecting portion rotate the connection, and respectively for connecting portion are rotatable around first rotation axis line, second rotation axis line, third rotation axis line and fourth rotation axis line, first rotation axis line, second rotation axis line, third rotation axis line and fourth rotation axis line coincidence just extend along the left right direction level of shallow.
9. The stroller of claim 6, wherein: the front support comprises a connecting part fixedly connected with or integrally arranged at the upper end of the front support rod, the connecting part extends along the left-right direction of the stroller, the left rear support rod, the right rear support rod, the left lower push rod and the right lower push rod are respectively rotatably connected with the connecting part and can 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 superposed and horizontally extend along the left-right direction of the stroller, the first rotating axis and the second rotating axis respectively extend obliquely along the left-right direction of the stroller, and when the left rear support rod is rotated and drawn close relative to the front support rod, the lower end part of the left rear support rod is drawn towards the inner side of the stroller; when the right rear supporting rod is close relative 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. The stroller of claim 8 or 9, wherein: the front strut with the junction or the linking department of connecting portion are located the middle part of connecting portion, a left side back branch the back right branch with the junction of connecting portion is located respectively the left side and the right side of connecting portion, a left side lower push rod with the junction of connecting portion is located the front strut with the junction of connecting portion a left side back branch with between the junction of connecting portion, a right side lower push rod with the junction of connecting portion is located the front strut with the junction of connecting portion a right back branch with between the junction of connecting portion.
11. The stroller of claim 9, wherein: the left side of the connecting part and the left rear support rod are respectively provided with a matched inclined surface, and when the left rear support rod is closed relative to the front support rod, the inclined surfaces on the left side of the connecting part and the left rear support rod are in sliding fit with each other; the right side of the connecting part and the right rear supporting rod are respectively provided with a matched inclined surface, and when the right rear supporting rod is close to the front supporting rod, the right side of the connecting part and the inclined surfaces on the right rear supporting rod are in sliding fit.
12. The stroller of claim 9, wherein: the rear support frame further comprises connecting sleeves which are respectively sleeved on the left rear supporting rod and the right rear supporting rod so as to connect the left rear supporting rod and the right rear supporting rod, and when the baby stroller is switched from an unfolding state to a folding state, the connecting sleeves allow the left rear supporting rod and the right rear supporting 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 support rod inclines from back to front to the right of the stroller, the right rear support rod inclines from back to front to the left of the stroller, and the distance between the upper end part of the left rear support rod and the upper end part of the right rear support rod is smaller than the distance between the lower end part of the left rear support rod and the lower end part of the right rear support rod;
and/or when the stroller is in a unfolding state, the length extension directions of the front supporting rod, the lower push rod frame and the upper push rod frame are consistent;
and/or when the child stroller is in the 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 the unfolded state;
and/or, when the stroller is in a folded state, the rear wheel assembly is positioned inside the front wheel assembly;
and/or when the stroller is in a folded state, the seat pocket assembly is positioned on the front side, the front support and the rear support are positioned on 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 strut and the right rear strut are respectively positioned at the left side and the right side of the front strut; 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. Child stroller according to any of claims 1-3, 5-9, 11-13, characterized in that: the seat pocket assembly is of a foldable structure and has an unfolded state and a folded state; and/or the seat pocket assembly is rotatably provided with respect to the frame about a rotation axis line extending in the up-down direction, so that the seat pocket assembly has a use state facing the front of the stroller and a use state facing the rear of the stroller.
15. The stroller of claim 14, wherein: the seat pocket assembly comprises a seat plate, a back rest rod, a grab bar, a front stopper, a pedal and a connecting mechanism, the back rest rod is rotatably connected to the rear portion of the seat plate and extends along the vertical direction, the rear portion of the grab bar is rotatably connected with the back rest rod, the upper end portion and the lower end portion of the front stopper are respectively and relatively rotatably connected with the grab bar and the seat plate, the upper end portion of the pedal is rotatably connected with the front portion of the seat plate, the connecting mechanism comprises a base and a connecting piece, the base is located below the seat plate, the connecting piece is fixedly connected to the rear portion of the base and extends upwards from front to back, the upper end portion of the connecting piece is rotatably connected with the upper push rod frame, when the seat pocket assembly is in an 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 back rest rod, the grab bar and the front stopper; 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 blocking piece, the handrail rod and the backrest rod are sequentially driven to rotate towards the upper push rod frame to be folded.
Priority Applications (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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| 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 true CN115180014A (en) | 2022-10-14 |
| CN115180014B CN115180014B (en) | 2024-01-19 |
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| CN202210717429.7A Active CN115180014B (en) | 2022-06-23 | 2022-06-23 | Foldable baby carriage |
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| Publication number | Publication date |
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| CN115180014B (en) | 2024-01-19 |
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