CN108773408B - Child cart - Google Patents
Child cart Download PDFInfo
- Publication number
- CN108773408B CN108773408B CN201810720502.XA CN201810720502A CN108773408B CN 108773408 B CN108773408 B CN 108773408B CN 201810720502 A CN201810720502 A CN 201810720502A CN 108773408 B CN108773408 B CN 108773408B
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- China
- Prior art keywords
- rod
- push handle
- rotatably connected
- end part
- link
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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
- B62B7/083—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 the wheel axes being moved from each other during folding
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/20—Handle bars; Handles
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)
- Handcart (AREA)
Abstract
The invention discloses a child cart, wherein a rear bracket is telescopic, so that the folded child cart is small in size. The baby carriage comprises a carriage frame with an unfolding state and a folding state, a front wheel assembly and a rear wheel assembly which are arranged at the bottom of the carriage frame, wherein the carriage frame comprises two or more side brackets and a transverse bracket connected between the side brackets; each side bracket comprises a push handle and a rear bracket, the rear bracket comprises an upper rod and a lower rod, the upper rod and the lower rod can be connected in a relatively sliding manner, and the rear wheel assembly is arranged at the lower end part of the lower rod; each side bracket also comprises a connecting rod assembly used for driving the lower rod to slide relative to the upper rod when the pushing handle acts; when the frame is converted from the unfolded state to the folded state, the lower rod slides along the extending direction of the upper rod, and the length of the rear bracket is shortened.
Description
Technical Field
The invention relates to the field of children products, in particular to a child trolley.
Background
At present, the children's shallow can all be folded and then realize reducing the volume to deposit in the convenience. However, many child carts, after being folded, have a rear frame that is too long to accommodate the length of the front frame, resulting in a large overall footprint. In order to reduce the length of the rear support after the folding of the baby stroller, the rear support of some baby strollers comprises two parts which can rotate relatively, and the two parts can be folded in a turnover manner, but the folding and the shrinking of the rear support can be realized only by folding the frame for the second time, so that the folding is inconvenient, and the consumption experience and the reality requirement of the increasingly high standard requirement are difficult to meet.
Disclosure of Invention
The invention provides a child stroller, which solves the problem that a rear support is too long after the child stroller is folded, and the rear support is telescopic, so that the folded child stroller has smaller volume.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The baby stroller comprises a frame with an unfolding state and a folding state, a front wheel assembly and a rear wheel assembly which are arranged at the bottom of the frame, wherein the frame comprises two or more side brackets and a transverse bracket connected between the side brackets; each side bracket comprises a push handle component and a rear bracket,
The rear bracket comprises an upper rod and a lower rod, the upper rod and the lower rod can be connected in a relatively sliding manner, and the rear wheel assembly is arranged at the lower end part of the lower rod;
each side bracket further comprises a connecting rod assembly for driving the lower rod to slide relative to the upper rod when the push handle assembly acts;
When the frame is converted from the unfolded state to the folded state, the lower rod slides along the extending direction of the upper rod, and the length of the rear bracket is shortened.
Preferably, the link assembly includes:
A drive link driven to rotate by the push handle assembly during folding of the frame;
An upper rod link, the rear end of which is rotatably connected to the upper rod; and
A lower rod link having a rear end rotatably connected to the lower rod;
wherein the front end of the lower rod connecting rod is rotatably and slidably connected with the upper rod connecting rod, the lower end of the driving connecting rod is rotatably connected with the lower rod connecting rod, and when the frame is in a unfolding state, the front end of the lower rod connecting rod is connected with the first position of the upper rod connecting rod; when the frame is in a folded state, the front end portion of the lower rod link is connected to a second position of the upper rod link, the second position being located in front of the first position.
More preferably, the link assembly further includes a slider slidably coupled to the upper link, and the lower end portion of the driving link, the front end portion of the lower link, and the slider are rotatably coupled.
Further, the sliding piece is a sliding sleeve which is sleeved on the upper rod connecting rod in a sliding manner.
According to one embodiment of the invention, the push handle assembly comprises a push handle and a push handle upper connecting rod, wherein the upper end part of the push handle upper connecting rod is rotatably connected to the lower part of the push handle, the upper end part of the driving connecting rod is rotatably connected to the lower end part of the push handle, and the side bracket further comprises a front bracket, the lower end part of which is provided with the front wheel assembly, and a seat rod rotatably connected to the front bracket; the upper end part of the front bracket, the lower end part of the upper connecting rod of the push handle and the upper end part of the upper rod are connected in a two-to-two rotary manner or in a coaxial rotary manner; the driving connecting rod is rotatably connected to the upper rod; the front part of the upper rod connecting rod is rotatably connected with the seat rod; when the frame is in a folded state, the lower end part of the front support, the lower end part of the lower rod and the lower end part of the pushing handle are mutually closed, and the upper end part of the front support, the upper end part of the upper rod and the upper end part of the pushing handle are mutually closed.
According to another embodiment of the present invention, the push handle assembly includes a push handle and a push handle upper link having an upper end rotatably connected to a lower portion of the push handle, and the side stand further includes a front stand having the front wheel assembly at a lower end, a seat bar rotatably connected to the front stand, and a grab bar rotatably connected to the push handle upper link; the upper end part of the front bracket, the lower end part of the upper connecting rod of the push handle and the upper end part of the upper rod are connected in a two-to-two rotary manner or in a coaxial rotary manner; the driving connecting rod is rotatably connected to the upper rod, and the upper end part of the driving connecting rod is rotatably connected to the grab rail; the front part of the upper rod connecting rod is rotatably connected with the seat rod; when the frame is in a folded state, the lower end part of the front support, the lower end part of the lower rod and the lower end part of the pushing handle are mutually closed, and the upper end part of the front support, the upper end part of the upper rod and the upper end part of the pushing handle are mutually closed.
According to a preferred embodiment of the present invention, the side bracket further includes a push handle lower link having an upper end rotatably connected to a lower end of the push handle, the lower end of the push handle lower link being rotatably connected to the lower lever.
More preferably, when the frame is in the deployed state, the center line of the push handle lower link and the center line of the drive link coincide with each other.
Preferably, the cross bracket comprises a front cross support assembly and a rear cross support assembly;
The front cross support assembly comprises two first connecting rods which are connected in a rotating way through a pivot shaft to form a cross structure, the upper end parts of the first connecting rods are respectively and rotatably connected with the rear end parts of the seat rods of the two side brackets and/or the front end parts of the upper rod connecting rods, and the lower end parts of the first connecting rods are respectively and rotatably connected with the lower end parts of the front brackets of the two side brackets;
The rear cross brace assembly comprises two second connecting rods which are connected in a rotating way through a pivot shaft to form a cross structure, wherein the upper end parts of the second connecting rods are respectively and rotatably connected with at least one of the sliding parts of the two side brackets, the lower end parts of the push handle connecting rods and the front end parts of the upper rod connecting rods, and the lower end parts of the second connecting rods are respectively and rotatably connected with the lower end parts of the upper rods of the two side brackets.
Preferably, the upper and lower bars have the same extending direction, and the lower bar is slidably connected to the upper bar along the extending direction of the upper bar.
More preferably, the lower rod is slidably inserted into the upper rod in the extending direction of the upper rod.
Further, an end plug inserted into the upper rod is formed at the upper end of the lower rod, the connecting rod assembly is connected to the end plug through a third pivot, a sliding groove for the third pivot to slide is formed in the wall of the upper rod along the extending direction of the wall of the upper rod, and the third pivot is slidably arranged in the sliding groove in a penetrating mode.
By combining the above technical scheme, the invention has the following advantages compared with the prior art:
According to the child stroller provided by the invention, the rear support comprises the upper rod and the lower rod which can slide relatively, so that the upper rod and the lower rod can stretch out and draw back, the lower rod and the pushing handle assembly are linked through the connecting rod assembly, when the stroller frame is folded, the lower rod slides upwards relative to the upper rod to be close under the action of the connecting rod assembly along with the action of the pushing handle assembly, the whole length of the folded rear support is reduced, secondary folding is not needed, the volume of the folded child stroller is reduced, and the folding is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of the stroller of example 1 when unfolded;
FIG. 2 is a side view of the stroller of FIG. 1 when deployed;
FIG. 3 is a cross-sectional view at J in FIG. 2;
FIG. 4 is a side view of the child stroller of FIG. 1 during folding;
FIG. 5 is a cross-sectional view at K in FIG. 4;
FIG. 6 is a side view of the child stroller of FIG. 1 after being folded;
FIG. 7 is a cross-sectional view at L in FIG. 6;
FIG. 8 is a bottom view of the stroller of FIG. 1 in a folded condition;
FIG. 9 is a side view of the stroller of example 2 of the present invention when deployed;
FIG. 10 is an enlarged view of a portion of FIG. 9 at M;
FIG. 11 is a side view of the stroller of FIG. 9;
FIG. 12 is an inside view of a side bracket of the stroller of FIG. 9;
FIG. 13 is a side view of the stroller of FIG. 9 after being folded;
FIG. 14 is a side view of the child stroller of example 3 of the present invention when deployed;
Fig. 15 is a partial enlarged view at N in fig. 14;
FIG. 16 is a side view of the stroller of FIG. 14;
FIG. 17 is an inside view of a side bracket of the stroller of FIG. 14;
fig. 18 is a side view of the stroller of fig. 14 after folding.
Wherein, 100, the frame; 101. a side bracket; 102. a transverse bracket; 200. a front wheel assembly; 300. a rear wheel assembly;
1. A pushing handle; 2. a rear bracket; 21. a pole is arranged; 211. a chute; 22. a lower rod; 221. an end plug; 3. a drive link; 4. a rod-up connecting rod; 41. a sliding sleeve; 5. a lower rod connecting rod; 6. a front bracket; 7. the upper connecting rod of the push handle; 8. a seat rod; 91. a first link; 92. a second link; 93. a U-shaped member;
31. A pushing handle; 32. a rear bracket; 321. a pole is arranged; 322. a lower rod; 33. a drive link; 34. a rod-up connecting rod; 341. a sliding sleeve; 35. a lower rod connecting rod; 36. a front bracket; 37. the upper connecting rod of the push handle; 38. a seat rod; 39. a grab rail;
30. pushing the lower connecting rod.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. The term "orientation" as used herein is defined in the art as a conventional viewing angle of a stroller in an unfolded state and for convenience of description.
Example 1
Fig. 1-8 illustrate a stroller of the present invention, comprising a frame 100 having an unfolded state and a folded state, a front wheel assembly 200 and a rear wheel assembly 300 provided at the bottom of the frame 100, the frame 100 comprising two or more side brackets 101 and a cross bracket 102 connected between the side brackets 101. In this embodiment, the number of the side brackets 101 is two and are respectively located at the left and right sides of the stroller. Each side bracket 101 includes a push handle assembly and a rear bracket 2, respectively, and the rear bracket 2 includes an upper rod 21 and a lower rod 22, and the upper rod 21 and the lower rod 22 are slidably connected with each other, so that the rear bracket 2 can be extended and contracted. Each side bracket 101 further includes a link assembly, which is configured to drive the lower rod 22 to slide relative to the upper rod 21 when the push handle assembly is actuated, so that the lower rod 22 and the push handle assembly are linked when the frame 100 is folded, and the lower rod 22 slides in the direction indicated by the arrow B in fig. 2 to approach the upper rod 21 under the action of the link assembly as the push handle assembly is pushed down. In this embodiment, the push handle assembly specifically includes a push handle 1 and a push handle upper link 7, and an upper end portion of the push handle upper link 7 is rotatably connected to a lower portion of the push handle 1. When the vehicle frame 100 is in the deployed state, the lower rod 22 is deployed relative to the upper rod 21; while when the frame 100 is in the folded state, the upper end of the lower rod 22 and the upper end of the upper rod 21 are drawn together, the lower end of the lower rod 22 and the lower end of the upper rod 21 are drawn together, and the rear bracket 2 is folded to reduce the volume of the folded frame 100. That is, when the vehicle frame 100 is shifted from the unfolded state to the folded state, the lower rod 22 slides in the extending direction of the upper rod 21, so that the length of the rear bracket 2 as a whole is shortened.
The side brackets may take a variety of configurations, including but not limited to those shown in FIGS. 1-8. As shown in fig. 1-3, the link assembly of the present embodiment specifically includes a driving link 3, an upper link 4 and a lower link 5, where the driving link 3 is driven by the push handle assembly to turn over during the folding process of the frame, and the push handle 1 and the lower link 22 of the push handle assembly are connected by the driving link 3 and the lower link 5 of the link assembly, so as to implement the linkage of the two. The driving link 3 extends in a substantially vertical direction, and an upper end portion thereof is rotatably connected to a lower end portion of the push handle 1 through a first pivot a 1; the upper rod link 4 extends substantially in the front-rear direction, and its rear end portion is rotatably connected to the upper rod 21 through a second pivot a 2; the lower link 5 extends substantially in the front-rear direction, and its rear end portion is rotatably connected to the lower lever 22 through a third pivot a 3. The front end portion of the lower rod link 5 is rotatably and slidably connected to the upper rod link 4, and the lower end portion of the drive link 3 is rotatably connected to the upper rod link 4. Specifically, the link assembly further includes a sliding member slidably connected to the upper rod link 4, and the sliding member is specifically a sliding sleeve 41 slidably sleeved on the upper rod link 4, and the lower end portion of the driving link 3 and the front end portion of the lower rod link 5 are rotatably connected with the sliding sleeve 41 through a fourth pivot a 4. Along with the pushing handle 1 being pressed down, the lower end of the driving connecting rod 3 turns upwards, the sliding sleeve 41 and the lower rod connecting rod 5 are driven to slide relative to the upper rod connecting rod 4 along the direction indicated by the arrow A in fig. 2, and the lower rod 22 slides along the direction indicated by the arrow B in fig. 2 under the action of the lower rod connecting rod 5 to be close to the upper rod 21, so that linkage shrinkage is realized. When the frame 100 is in the unfolded state, the front end part of the lower rod connecting rod 5 is connected to the first position of the upper rod connecting rod 4 (the position where the sliding sleeve 41 is located); when the frame 100 is in the folded state, the front end portion of the lower rod link 5 is connected to the upper rod link 4 at a second position, which is located forward of the first position. That is, the slide bush 41 approaches the front end portion of the upper rod link 4 at the time of folding.
The rear wheel assembly 300 is specifically provided at the lower end portion of the lower lever 22 of the rear bracket 2. Each side bracket 101 further includes a front bracket 6 push handle upper link 7 and a seat bar 8, respectively, the front wheel assembly 200 is disposed at a lower end portion of the front bracket 6, an upper end portion of the push handle upper link 7 is rotatably connected to the push handle 1 through a fifth pivot a5, and the seat bar 8 is rotatably connected to the front bracket 6 through a sixth pivot a 6. The drive link 3 is rotatably connected to the upper lever 21 through a seventh pivot a7 such that a four-bar mechanism is formed between the push handle 1, the drive link 3, the upper lever 21 and the push handle upper link 7. The front portion of the upper rod link 4 is rotatably connected to the rear end portion of the seat post 8 through an eighth pivot a 8. The upper end part of the front bracket 6, the lower end part of the upper connecting rod 7 of the push handle and the upper end part of the upper rod 21 are connected in a pair-wise rotating manner or in a coaxial rotating manner; that is, the upper end portion of the front bracket 6, the lower end portion of the push handle upper link 7, and the upper end portion of the upper lever 21 are rotatably connected by the same pivot, or a first member and a second member of the three members are rotatably connected by one pivot and a third member is rotatably connected to the first member or the second member by another pivot. Specifically, in the present embodiment, the upper end portion of the front bracket 6 is rotatably connected to the upper end portion of the upper lever 21 through a ninth pivot a9, and the lower end portion of the push handle upper link 7 is rotatably connected to the upper end portion of the upper lever 21 through a tenth pivot a 10.
The axes of the first pivot a1, the second pivot a2, the third pivot a3, the fourth pivot a4, the fifth pivot a5, the sixth pivot a6, the seventh pivot a7, the eighth pivot a8, the ninth pivot a9, and the tenth pivot a10 in each side bracket 101 are parallel to each other, and preferably extend horizontally in the left-right direction of the stroller. The axes of the corresponding pivots of the two side brackets 101 coincide with each other, such as the axes of the first pivots a1 of the two side brackets 101 coincide with each other, the axes of the two second pivots a2 of the two side brackets 101 coincide with each other, and so on.
The upper rod 21 and the lower rod 22 are aligned in the extending direction, and the lower rod 22 is slidably connected to the upper rod 21 along the extending direction of the upper rod 21. In particular, in the present embodiment, the lower rod 22 is slidably inserted into the upper rod 21 in the extending direction of the upper rod 21. The upper end of the lower rod 22 is formed with an end plug 221 inserted into the upper rod 21, the rear end of the lower rod link 5 is rotatably connected to the end plug 221 through a third pivot a3, a sliding groove 211 through which the third pivot a3 slides is formed in the wall of the upper rod 21 along the extending direction thereof, and the third pivot a3 is slidably inserted into the sliding groove 211, thereby allowing the lower rod 22 to slide with respect to the upper rod 21.
The cross support 102 can be unfolded and folded along the left-right direction of the stroller. In this embodiment, the cross frame 102 is mainly composed of a front cross frame assembly for inwardly folding the front frames 6 on both sides and a rear cross frame assembly for inwardly folding the rear frames 2 on both sides. Referring to fig. 1, the front cross brace assembly includes two first links 91 that are pivotally connected to each other to cross a cross structure, upper ends of the first links 91 are rotatably connected to front ends of upper links 4 of two side brackets 101, respectively, and lower ends of the first links 91 are rotatably connected to lower ends of front brackets 6 of the two side brackets 101, respectively. If the upper end portion of the first link 91 is rotatably connected to one side bracket 101, the lower end portion of the first link 91 is rotatably connected to the other side bracket 101.
The rear cross brace assembly includes two second links 92 which are pivotally connected to each other to cross to form a cross structure, upper ends of the second links 92 are rotatably connected to sliding members of the two side brackets 101, respectively, and lower ends of the second links 92 are rotatably connected to lower ends of the upper bars 21 of the two side brackets 101, respectively. If the upper end portion of the second link 92 is rotatably connected to one side bracket 101, the lower end portion of the second link 92 is rotatably connected to the other side bracket 101.
The first link 91 and the second link 92 are rotatably connected to the side bracket 101 through the U-shaped member 93. The U-shaped member 93 is pivotally connected to the side bracket 101 by one pivot, and the ends of the first link 91 or the second link 92 are pivotally connected to the U-shaped member 93 by another pivot, with the axes of the two pivots on the same U-shaped member 93 intersecting, preferably perpendicular, to each other. In the embodiment, the upper end of the first link 91 is rotatably connected with the front end of the upper link 4 through one of the U-shaped members 93; the lower end of the first link 91 is rotatably connected with the lower end of the front bracket 6 through one of the U-shaped members 93; the upper end of the second connecting rod 92 is rotatably connected with the sliding sleeve 41 through one U-shaped piece 93; the lower end of the second link 92 is rotatably connected to the lower end of the upper rod 21 by a U-shaped member 93.
As shown in fig. 1-3, when the stroller is unfolded, the frame 100 is in an unfolded state, the front cross brace assembly and the rear cross brace assembly of the cross bracket 102 are respectively unfolded, the two side brackets 101 are spaced left and right, the push handle, the front bracket 6 and the rear bracket 2 are relatively unfolded, and the lower rod 22 of the rear bracket 2 is extended relative to the lower rod 22.
As shown in fig. 4 and 5, when the frame 100 is folded, the push handle 1 is pressed downwards, so that the lower end of the push handle 1 turns backwards and downwards, the driving connecting rod 3 turns to drive the sliding sleeve 41 to slide forwards along the upper rod connecting rod 4, the lower rod connecting rod 5 moves forwards along with the sliding sleeve 41, so that the lower rod 22 is driven to slide into the upper rod 21, and meanwhile, the push handle 1 is closed towards the upper rod 21 of the rear bracket 2 under the action of the driving connecting rod 3, and the front bracket 6 is closed towards the upper rod 21 of the rear bracket 2 under the action of the upper rod connecting rod 4 and the seat rod 8; and as the sliding sleeve 41 slides, the rear cross brace assembly is folded, and the front cross brace assembly is also folded along with the movement of the upper rod connecting rod 4, so that the side brackets 101 at both sides are folded toward the middle. Until the frame 100 is folded to the state shown in fig. 6 to 8, the frame 100 is folded to the folded state, and the cross brackets 102 are folded so that the side brackets 101 on both sides are closed; the upper end of the push handle 1, the lower end of the drive link 3, the upper end of the upper rod 21, the front end of the upper rod link 4, and the rear end of the seat rod 8 of each side stand 101 are close to each other, the lower end of the push handle 1, the upper end of the drive link 3, the lower end of the upper rod 21, and the lower end of the front stand 6 are close to each other, the lower rod 22 of the rear stand 2 is retracted into the upper rod 21, and the front wheel assemblies 200 on both sides are retracted between the rear wheel assemblies 300 on both sides.
According to the child stroller provided by the invention, the rear support 2 comprises the upper rod 21 and the lower rod 22 which can slide relatively, so that the lower rod 22 and the push handle assembly can be telescopic, and the lower rod 22 and the push handle assembly are linked through the connecting rod assembly, when the stroller frame 100 is folded, the lower rod 22 slides upwards relative to the upper rod 21 to be close under the action of the connecting rod assembly along with the action of the push handle 1 of the push handle assembly, so that the whole length of the folded rear support 2 is reduced, secondary folding is not needed, the volume of the folded child stroller is reduced, and the folding is convenient.
Example 2
Fig. 9-13 illustrate another child stroller of the present invention that differs from the child stroller of embodiment 1 only in the side brackets 101, the front wheel assemblies 200, the rear wheel assemblies 300, and the cross brackets 102 from embodiment 1.
Referring to fig. 9-13, each side bracket 101 includes a push handle assembly, a rear bracket 32, a link assembly, a front bracket 36, a seat bar 38, and a grab bar 39, respectively, wherein the rear bracket 32, the front bracket 36, and the seat bar 38 are the same as in embodiment 1. The push handle assembly comprises a push handle 31 and a push handle upper connecting rod 37, wherein the upper end part of the push handle upper connecting rod 37 is rotatably connected with the lower end part of the push handle 31, and a locking mechanism is arranged between the push handle 31 and the push handle upper connecting rod 37. The rear bracket 32 includes an upper rod 321 and a lower rod 322, and the lower rod 322 is slidably inserted into the upper rod 321 in an extending direction of the upper rod 321. The upper end of the front bracket 36 and the lower end of the push handle upper link 37 are rotatably connected to the upper end of the upper lever 321, respectively. The seat bar 38 is rotatably connected to the front bracket 36, and the grab bar 39 is rotatably connected to the push handle upper link 37. The link assembly includes a drive link 33, an upper link 34 and a lower link 35, and is basically identical to embodiment 1, except that the upper end of the drive link 33 is rotatably connected to the rear end of the grab bar 39, and the drive link 33 is turned over by the grab bar 37 of the push handle 31 assembly through the grab bar 39. The link assembly further includes a sliding sleeve 341 slidably sleeved on the upper rod link 34, and the lower end portion of the driving link 33 and the front end portion of the lower rod link 35 are rotatably connected to the sliding sleeve 341.
When the child stroller is folded, the lock between the push handle 31 and the push handle upper link 37 is released, the push handle 31 is pressed downward, so that the lower end of the push handle 31 turns backward and downward, the push handle upper link 37 rotates accordingly, the grab bar 39 drives the driving link 33 to turn over, the sliding sleeve 341 slides forward along the upper link 34, the lower link 35 moves forward accordingly, the lower link 322 is driven to slide into the upper link 321, and the front support 36 is drawn toward the upper link 321 of the rear support 32 under the action of the upper link 34 and the seat bar 38. Until folded to the state shown in fig. 13, the upper end of the push knob 31, the rear end of the grab bar 39, the lower end of the drive link 33 and the upper end of the upper bar 321, the front end of the upper bar link 34, and the rear end of the seat bar 38 of each side stand 101 are brought together, the lower end of the push knob 31, the upper end of the drive link 33 and the lower end of the upper bar 321, and the lower end of the front stand 36 are brought together, and the lower bar 322 of the rear stand 32 is retracted into the upper bar 321.
Example 3
Fig. 14-18 illustrate yet another child stroller of the present invention that differs substantially from embodiment 2 only in that: the side bracket 101 further comprises a push handle lower connecting rod 30, wherein the upper end part of the push handle lower connecting rod 30 is rotatably connected with the lower end part of the push handle 31, and the lower end part of the push handle lower connecting rod 30 is rotatably connected with the upper rod 321; further, the upper end portion of the push handle upper link 37 is rotatably connected to the lower portion of the push handle 31 with the connection therebetween being located above the connection of the push handle 31 and the push handle lower link 30, so that a four-bar mechanism is constituted among the push handle 31, the push handle lower link 30, the upper lever 321 and the push handle upper link 37, and the lock mechanism as in embodiment 2 is not provided between the push handle 31 and the push handle upper link 37.
In this embodiment, the extension direction of the push handle lower link 30 preferably coincides with the extension direction of the drive link 33 when the frame is in the deployed state.
Also to be described is: in other embodiments, the lower push handle link 30 and the driving link 33 are the same rod member, i.e., the rod member is rotatably disposed on the upper rod 321, and the upper end and the lower end thereof are respectively rotatably connected to the lower end of the push handle 31 and the sliding sleeve 341, while the rear end of the grab bar 39 is rotatably connected to the rod member.
The above examples are only for illustrating the technical concept and features of the present invention, and are intended to be preferred embodiments, and those skilled in the art can understand the content of the present invention and implement the same, and thus are not intended to limit the scope of the present invention. All equivalent changes or modifications of the invention are intended to be included within the scope of the present invention.
Claims (10)
1. The baby stroller comprises a frame with an unfolding state and a folding state, a front wheel assembly and a rear wheel assembly which are arranged at the bottom of the frame, wherein the frame comprises more than two side brackets and a transverse bracket connected between the side brackets; each side support includes pushing away handle subassembly and rear bracket, its characterized in that respectively:
The rear bracket comprises an upper rod and a lower rod, the upper rod and the lower rod can be connected in a relatively sliding manner, the extending directions of the upper rod and the lower rod are consistent, the lower rod can be connected with the upper rod in a sliding manner along the extending direction of the upper rod, and the rear wheel assembly is arranged at the lower end part of the lower rod;
each side bracket further comprises a connecting rod assembly for driving the lower rod to slide relative to the upper rod when the push handle assembly acts;
when the frame is converted from an unfolding state to a folding state, the lower rod slides along the extending direction of the upper rod, and the length of the rear bracket is shortened;
The connecting rod assembly includes:
A drive link driven to rotate by the push handle assembly during folding of the frame;
An upper rod link, the rear end of which is rotatably connected to the upper rod; and
A lower rod link having a rear end rotatably connected to the lower rod;
wherein the front end of the lower rod connecting rod is rotatably and slidably connected with the upper rod connecting rod, the lower end of the driving connecting rod is rotatably connected with the lower rod connecting rod, and when the frame is in a unfolding state, the front end of the lower rod connecting rod is connected with the first position of the upper rod connecting rod; when the frame is in a folded state, the front end portion of the lower rod link is connected to a second position of the upper rod link, the second position being located in front of the first position.
2. The stroller of claim 1, wherein the linkage assembly further comprises a slider slidably coupled to the upper rod link, the lower end of the drive link, the front end of the lower rod link, and the slider being rotatably coupled.
3. The stroller of claim 2, wherein the slide is a sliding sleeve slidably disposed over the upper rod link.
4. The stroller of claim 2, wherein the push handle assembly comprises a push handle and a push handle upper link having an upper end rotatably connected to a lower portion of the push handle, the upper end of the drive link being rotatably connected to a lower end of the push handle, the side brackets further comprising a front bracket having a lower end provided with the front wheel assembly and a seat bar rotatably connected to the front bracket; the upper end part of the front bracket, the lower end part of the upper connecting rod of the push handle and the upper end part of the upper rod are connected in a two-to-two rotary manner; the driving connecting rod is rotatably connected to the upper rod; the front part of the upper rod connecting rod is rotatably connected with the seat rod; when the frame is in a folded state, the lower end part of the front support, the lower end part of the lower rod and the lower end part of the pushing handle are mutually closed, and the upper end part of the front support, the upper end part of the upper rod and the upper end part of the pushing handle are mutually closed.
5. The stroller of claim 2, wherein: the push handle assembly comprises a push handle, a push handle upper connecting rod, a front support, a seat rod and a grab rod, wherein the upper end part of the push handle is rotatably connected to the lower part of the push handle, the front support is provided with the front wheel assembly at the lower end part of the side support, the seat rod is rotatably connected to the front support, and the grab rod is rotatably connected to the push handle upper connecting rod; the upper end part of the front bracket, the lower end part of the upper connecting rod of the push handle and the upper end part of the upper rod are connected in a two-to-two rotary manner; the driving connecting rod is rotatably connected to the upper rod, and the upper end part of the driving connecting rod is rotatably connected to the grab rail; the front part of the upper rod connecting rod is rotatably connected with the seat rod; when the frame is in a folded state, the lower end part of the front support, the lower end part of the lower rod and the lower end part of the pushing handle are mutually closed, and the upper end part of the front support, the upper end part of the upper rod and the upper end part of the pushing handle are mutually closed.
6. The stroller of claim 5, wherein: the side bracket further comprises a push handle lower connecting rod with an upper end part rotatably connected with the lower end part of the push handle, and the lower end part of the push handle lower connecting rod is rotatably connected with the upper rod.
7. The stroller of claim 6, wherein: when the frame is in the unfolding state, the center line of the push handle lower connecting rod and the center line of the driving connecting rod are mutually overlapped.
8. The stroller of any one of claims 4 to 7, wherein the cross support comprises a front cross support assembly and a rear cross support assembly;
The front cross support assembly comprises two first connecting rods which are connected in a rotating way through a pivot shaft to form a cross structure, the upper end parts of the first connecting rods are respectively and rotatably connected with the rear end parts of the seat rods of the two side brackets and/or the front end parts of the upper rod connecting rods, and the lower end parts of the first connecting rods are respectively and rotatably connected with the lower end parts of the front brackets of the two side brackets;
The rear cross brace assembly comprises two second connecting rods which are connected in a rotating way through a pivot shaft to form a cross structure, the upper end parts of the second connecting rods are respectively and rotatably connected with the front end parts of the sliding parts or the upper rod connecting rods of the two side brackets, and the lower end parts of the second connecting rods are respectively and rotatably connected with the lower end parts of the upper rods of the two side brackets.
9. The stroller of claim 1, wherein the lower rod is slidably inserted into the upper rod in the direction of extension of the upper rod.
10. The stroller of claim 9, wherein an end plug inserted into the upper rod is formed at an upper end portion of the lower rod, the link assembly is connected to the end plug through a third pivot, a sliding groove for sliding the third pivot is formed in a wall of the upper rod along an extending direction of the wall of the upper rod, and the third pivot is slidably inserted into the sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810720502.XA CN108773408B (en) | 2018-07-02 | 2018-07-02 | Child cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810720502.XA CN108773408B (en) | 2018-07-02 | 2018-07-02 | Child cart |
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| Publication Number | Publication Date |
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| CN108773408A CN108773408A (en) | 2018-11-09 |
| CN108773408B true CN108773408B (en) | 2024-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810720502.XA Active CN108773408B (en) | 2018-07-02 | 2018-07-02 | Child cart |
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| CN (1) | CN108773408B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109572792A (en) * | 2019-01-22 | 2019-04-05 | 江苏小小恐龙儿童用品集团有限公司 | A kind of collapsible stroller vehicle frame |
| CN110001733B (en) * | 2019-03-04 | 2024-05-10 | 好孩子儿童用品有限公司 | Baby carriage |
| CN113753115B (en) * | 2020-01-22 | 2023-01-31 | 好孩子儿童用品有限公司 | Children's barrow |
| CN111152826B (en) * | 2020-01-22 | 2024-11-29 | 好孩子儿童用品有限公司 | Child cart |
| CN111152827B (en) * | 2020-01-22 | 2024-11-29 | 好孩子儿童用品有限公司 | Child cart |
| CN112026897B (en) * | 2020-08-11 | 2024-12-27 | 好孩子儿童用品有限公司 | A folding cart |
| CN112455524A (en) * | 2020-12-18 | 2021-03-09 | 昆山威凯儿童用品有限公司 | Folding baby carriage |
| CN115158435B (en) * | 2022-06-13 | 2023-12-29 | 好孩子儿童用品有限公司 | Child cart |
| CN115071803B (en) * | 2022-08-16 | 2023-01-31 | 好孩子儿童用品有限公司 | Children's barrow |
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| CN201907544U (en) * | 2010-11-24 | 2011-07-27 | 好孩子儿童用品有限公司 | Baby carriage |
| CN105346586A (en) * | 2015-11-27 | 2016-02-24 | 好孩子儿童用品有限公司 | Stroller |
| CN107618558A (en) * | 2017-08-29 | 2018-01-23 | 好孩子儿童用品有限公司 | Children trolley |
| CN208682889U (en) * | 2018-07-02 | 2019-04-02 | 好孩子儿童用品有限公司 | A kind of children trolley |
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| KR840001873B1 (en) * | 1980-10-13 | 1984-10-24 | 갓사이 가부시끼 가이샤 | Baby car |
| CN205239594U (en) * | 2015-12-02 | 2016-05-18 | 昆山威凯儿童用品有限公司 | Baby stroller capable of being bidirectionally folded |
| CN106985891B (en) * | 2017-04-05 | 2023-05-23 | 好孩子儿童用品有限公司 | Child cart |
| CN107264601B (en) * | 2017-06-16 | 2023-09-01 | 好孩子儿童用品有限公司 | Child cart |
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| CN201907544U (en) * | 2010-11-24 | 2011-07-27 | 好孩子儿童用品有限公司 | Baby carriage |
| CN105346586A (en) * | 2015-11-27 | 2016-02-24 | 好孩子儿童用品有限公司 | Stroller |
| CN107618558A (en) * | 2017-08-29 | 2018-01-23 | 好孩子儿童用品有限公司 | Children trolley |
| CN208682889U (en) * | 2018-07-02 | 2019-04-02 | 好孩子儿童用品有限公司 | A kind of children trolley |
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| CN108773408A (en) | 2018-11-09 |
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