CN118082952A - Child cart - Google Patents
Child cart Download PDFInfo
- Publication number
- CN118082952A CN118082952A CN202410157867.1A CN202410157867A CN118082952A CN 118082952 A CN118082952 A CN 118082952A CN 202410157867 A CN202410157867 A CN 202410157867A CN 118082952 A CN118082952 A CN 118082952A
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- China
- Prior art keywords
- bracket
- stroller
- shaft
- push rod
- wheel
- 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.)
- Pending
Links
- 230000000712 assembly Effects 0.000 claims description 42
- 238000000429 assembly Methods 0.000 claims description 42
- 230000007246 mechanism Effects 0.000 description 19
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
- B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
- B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
- B62B7/086—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis becoming smaller in all three dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- 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
- B62B7/10—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by folding down the body to the wheel carriage or by retracting projecting parts into the box-shaped body
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The invention discloses a child stroller, which comprises a stroller frame, wherein the stroller frame comprises a side bracket and a cross brace bracket, the side bracket comprises a front bracket, a rear bracket, a push rod assembly and a side handrail, the front wheel assembly is rotationally arranged on the front bracket through a first wheel shaft, the rear wheel assembly is rotationally arranged on the rear bracket through a second wheel shaft, the front bracket is rotationally connected with the rear bracket, and the side handrail is rotationally connected with at least one of the front bracket and the rear bracket and the push rod assembly; the included angle between the whole extending direction of the front bracket and the horizontal plane is smaller than the included angle between the whole extending direction of the side handrail and the horizontal plane; the baby carriage can be folded once, and when the baby carriage is folded once, the side armrests are turned downwards to be close to the rear support, and the front support is turned backwards to be close to the rear support. The folding baby stroller has compact structure and small volume.
Description
The invention relates to a sub-application of a mother application 'a child trolley', wherein the application date of the mother application is 2017, 08 and 29, and the application number of the mother application is 201710753536.4.
Technical Field
The invention relates to the technical field of children products, in particular to a child trolley.
Background
The child stroller in the prior art comprises a stroller frame with an unfolding position and a folding position, a front wheel assembly and a rear wheel assembly which are arranged at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolding state. The existing children's carts are various, the number of cart frame members is different, the connection positions among the members are different, so that the folding principle and the folding mode are different, and the folding effect is different.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a child cart which can be folded and has smaller volume after being folded.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The baby stroller comprises a stroller frame with an unfolding state and a folding state, a front wheel assembly arranged at the front part below the stroller frame, a rear wheel assembly arranged at the rear part below the stroller frame and a locking mechanism for locking the stroller frame to be unfolded, wherein the stroller frame comprises side brackets respectively positioned at the left side and the right side, a cross brace bracket connected between the side brackets at the left side and the right side, each side bracket comprises a front bracket, a rear bracket, a push rod assembly, a side handrail, a front connecting rod and a rear connecting rod, the front wheel assembly is rotationally arranged at the lower part of the front bracket through a first wheel shaft, the rear wheel assembly is rotationally arranged at the lower part of the rear bracket through a second wheel shaft, the upper part of the front bracket is rotationally connected with the upper part of the rear bracket, the lower part of the side handrail is rotationally connected with at least one part of the upper part of the front bracket and the upper part of the rear bracket, the upper part of the side handrail is rotationally connected with the lower part of the push rod assembly, one end part of the rear connecting rod is rotationally connected with the lower part of the push rod assembly, the other end part of the rear connecting rod is rotationally connected with one end part of the front connecting rod, the rear connecting rod is rotationally connected with the rear bracket, the other end part of the front connecting rod is rotationally connected with the front bracket, the child stroller can be folded once, when the child stroller is folded once, the push rod assembly is turned forwards to drive the side handrail to be turned downwards to be close to the rear bracket, the front bracket is driven to be turned backwards to be close to the rear bracket through the front connecting rod and the rear connecting rod, when the child stroller is in a folded once state, the front wheel assembly and the rear wheel assembly on two sides are arranged side by side along the left-right direction, and in each of the left side and the right side of the child stroller, one of the two parts of the first wheel shaft and the second wheel shaft, which is positioned on the inner side, is positioned in the outline of one of the two parts of the front wheel assembly and the rear wheel assembly, which is positioned on the outer side.
Preferably, the first and second wheel axles extend in a same straight direction when the stroller is in a one-time folded state.
Preferably, when the stroller is in a one-time folded state, the front wheel assembly and the rear wheel assembly of each side are respectively located at inner and outer sides of the side bracket of the same side.
Further, the upper portion of the front support and the upper portion of the rear support are rotatably connected through a first side shaft, when the stroller is in a unfolded state, the rear wheel assemblies on the left side and the right side are rotatably connected to the outer side of the rear support respectively, and in each of the left side and the right side, the front wheel assemblies are located on the inner side of the first side shaft, and the rear wheel assemblies are located on the outer side of the first side shaft.
Further, the upper portion of the front support and the upper portion of the rear support are rotatably connected through a first side shaft, when the stroller is in a unfolded state, the rear wheel assemblies on the left side and the right side are rotatably connected to the inner side of the rear support respectively, and in each of the left side and the right side, the front wheel assemblies are located on the outer side of the first side shaft, and the rear wheel assemblies are located on the inner side of the first side shaft.
Preferably, when the stroller is in a folded state, a distance between a lower one of the first wheel axle and the second wheel axle and an upper end surface of the push rod assembly is 230-330 mm.
Preferably, the stroller is further capable of being folded secondarily, and when the stroller is in a secondarily folded state, the front wheel assemblies and the rear wheel assemblies on both sides are disposed side by side in a front-rear direction, and in each side of the stroller, one of the first wheel shaft and the second wheel shaft located on the inner side is located within a contour of one of the front wheel assembly and the rear wheel assembly located on the outer side.
Further, the cross brace bracket includes:
The first cross rod extends along the left-right direction, and the left end part and the right end part of the first cross rod are respectively and rotatably connected with the front brackets at the left side and the right side through a first transverse shaft;
the left end and the right end of the second cross rod are respectively and rotatably connected with the rear brackets on the left side and the right side through a second transverse shaft;
the left end and the right end of the third cross rod are respectively connected with the push rod assemblies on the left side and the right side in a rotating way through a third transverse shaft;
when the child stroller is folded for the second time, the side brackets on the two sides respectively roll around the first transverse shaft, the second transverse shaft and the third transverse shaft to the inner side of the child stroller.
Further, when the stroller is in the secondary folded state, the first transverse axis, the second transverse axis, and the third transverse axis on each of the left and right sides of the stroller frame all extend in a same straight line direction.
Preferably, the push rod assembly comprises a lower push rod and an upper push rod which is slidably arranged on the lower push rod along the length extension direction of the lower push rod, and the upper part of the side handrail and one end part of the rear connecting rod are respectively connected with the lower part of the lower push rod in a rotating way.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the child cart disclosed by the invention is simple in structure, capable of being folded and convenient to fold and operate, and is compact in structure, small in size and convenient to carry and store.
Drawings
FIG. 1 is one of the perspective views of the stroller of the present invention in an unfolded state (embodiment 1);
FIG. 2 is a second perspective view of the stroller of the present invention in an unfolded state (embodiment 1);
FIG. 3 is a side view of the stroller of the present invention in an expanded state (example 1);
FIG. 4 is one of the perspective views of the child stroller of the present invention during folding (example 1);
FIG. 5 is a second perspective view of the child stroller of the present invention during folding (example 1);
FIG. 6 is a perspective view of the stroller of the present invention in a folded state (example 1)
FIG. 7 is a side view of the child stroller of the present invention in a collapsed condition (embodiment 1);
FIG. 8 is a perspective view of the stroller of the present invention in an unfolded state (example 2);
FIG. 9 is a perspective view of the child stroller of the present invention (example 2) during folding;
FIG. 10 is a perspective view of the stroller of the present invention in a folded state (example 2)
Fig. 11 is a side view of the child stroller of the present invention in a collapsed condition (embodiment 2).
Wherein: 1. a side bracket; 11. a front bracket; 12. a rear bracket; 13. a push rod assembly; 131. a push rod is downwards pushed; 132. an upper push rod; 133. a first lever; 134. a second lever; 14. a side rail; 15. a front link; 16. a rear connecting rod; 21. a front wheel assembly; 22. a rear wheel assembly; 31. a first axle; 32. a second axle; 41. a first side shaft; 42. a second side shaft; 43. a third side shaft; 44. a fourth side shaft; 45. a fifth side shaft; 46. a sixth shaft; 47. a seventh side shaft; 51. a first straight line; 52. a second straight line; 61. a first cross bar; 62. a second cross bar; 63. a third cross bar; 64. a fourth cross bar; 71. a first transverse axis; 72. a second transverse axis; 73. a third transverse axis; 74. and a fourth horizontal axis.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and specific embodiments.
Example 1
As shown in fig. 1 to 7, the child stroller of the present invention includes a stroller frame having an unfolded state and a folded state, a front wheel assembly 21 provided at a bottom front portion of the stroller frame, a rear wheel assembly 22 provided at a bottom rear portion of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolded state.
The cart frame comprises side brackets 1 respectively positioned at the left side and the right side of the baby cart and a transverse support bracket connected between the side brackets 1 at the left side and the right side.
The side brackets 1 of each side include a front bracket 11, a rear bracket 12, a push rod assembly 13, a side rail 14, a front link 15, and a rear link 16. The front wheel assembly 21 is rotatably connected to the lower portion of the front bracket 11 through a first axle 31, the rear wheel assembly 22 is rotatably connected to the lower portion of the rear bracket 12 through a second axle 32, and when the stroller frame is in the unfolded state, the front bracket 11, the side rail 14 and the push rod assembly 13 are all disposed obliquely upward from front to back, and the rear bracket 12 is disposed obliquely upward from back to front.
The upper part of the front bracket 11 is rotatably connected to the upper part of the rear bracket 12 by a first side shaft 41, and the lower part of the side rail 14 is rotatably connected to at least one of the upper part of the front bracket 11 and the upper part of the rear bracket 12 by a second side shaft 42. In one embodiment, the lower portion of the side rail 14 is rotatably coupled to the upper portion of the rear bracket 12 by a second side shaft 42, as shown in FIG. 2; in yet another embodiment, the first side shaft 41 and the second side shaft 42 extend in the same straight direction, i.e., the upper part of the front bracket 11, the upper part of the rear bracket 12, and the lower part of the side rail 14 are rotatably connected by the same shaft of the first side shaft 41/the second side shaft 42, as shown in fig. 1. The upper part of the side arm rest 14 is rotatably connected with the lower part of the push rod assembly 13 through a third side shaft 43, one end part of the rear connecting rod 16 is rotatably connected with the lower part of the push rod assembly 13 through a fourth side shaft 44, the other end part of the rear connecting rod 16 is rotatably connected with one end part of the front connecting rod 15 through a fifth side shaft 45, the rear connecting rod 16 is rotatably connected with the rear bracket 12 through a sixth side shaft 46, and the other end part of the front connecting rod 15 is rotatably connected with the front bracket 11 through a seventh side shaft 47. Thus, a four-bar linkage is formed between the front bracket 11, the rear bracket 12, the rear link 16 and the front link 15, and a four-bar linkage is also formed between the push rod assembly 13, the side rail 14, the rear bracket 12 and the rear link 16.
In order to make the child stroller smaller in size after folding, the push rod assembly 13 includes a lower push rod 131 extending obliquely upward from front to rear, an upper push rod 132 slidably provided on the lower push rod 131 in a length extending direction of the lower push rod 131, an upper portion of the side rail 14 rotatably connected to a lower portion of the lower push rod 131 through a third side shaft 43, and an end portion of the rear link 16 rotatably connected to a lower portion of the lower push rod 131 through a fourth side shaft 44.
In a specific embodiment, the lower pushrod 131 has a hollow cavity extending along a length direction thereof, the upper pushrod 132 is inserted into the hollow cavity of the lower pushrod 131 from an upper portion of the lower pushrod 131, and the upper pushrod 132 can slide up and down along the length extending direction of the hollow cavity.
The push rod assembly 13 further includes a push handle including a first rod 133 and a second rod 134 fixedly connected, the first rod 133 being fixedly connected to an upper end portion of the upper push rod 132.
When the side stand 1 is in the unfolded state, on the front stand 11, the seventh side shaft 47 is located below the first side shaft 41; on the rear bracket 12, the first side shaft 41 is located below the second side shaft 42, or the first side shaft 41 is disposed coaxially with the second side shaft 42, and the sixth side shaft 46 is located below the first side shaft 41; on the push rod assembly 13, the fourth side shaft 44 is located below the third side shaft 43.
When the side bracket 1 is in the unfolded state, as shown in fig. 3, a first straight line 51 is formed between the connecting lines of the axes of the first wheel axle 31 and the first side axle 41, a second straight line 52 is formed between the connecting lines of the axes of the second wheel axle 32 and the first side axle 41, and when the stroller is in the unfolded state, the included angle between the first straight line 51 and the second straight line 52 is set to be 95-150 degrees, and the distance between the connecting lines of the axes of the first wheel axle 31 and the second wheel axle 32 is set to be 400-500 mm. In order to make the child stroller smaller in size and compact in structure after being folded, the included angle between the first straight line 51 and the second straight line 52 is preferably 105-130 degrees.
The stroller can be folded once, when the stroller is folded once, the side brackets 1 on each side are folded along the height direction and the front-rear direction, and in the once folded state, the front wheel assemblies 21 and the rear wheel assemblies 22 on the two sides are arranged side by side along the left-right direction, and in each of the left side and the right side of the stroller, one of the two parts of the first wheel axle 31 and the second wheel axle 32, which is located on the inner side, is located in the outline of one of the two parts of the front wheel assemblies 21 and the rear wheel assemblies 22, which is located on the outer side. Preferably, when the stroller is in a folded state, the front wheel assembly 21 and the rear wheel assembly 22 of each side are located at the inner and outer sides of the side bracket 1 of the same side, respectively, and the first wheel axle 31 and the second wheel axle 32 extend in the same straight line direction.
In this embodiment, when the stroller is in the unfolded state, the rear wheel assemblies 22 on the left and right sides are respectively rotatably connected to the outer sides of the rear bracket 12, and in each of the left and right sides, the front wheel assemblies 21 are located inside the first side axles 41, and the rear wheel assemblies 22 are located outside the first side axles 41. Thus, when the stroller is in a folded condition, the front wheel assembly 21 is located inside the side frame 1 and the rear wheel assembly 22 is located outside the side frame 1.
The stroller can be folded for the second time, and the specific cross brace bracket comprises a first cross rod 61, a second cross rod 62 and a third cross rod 63 connected between the side brackets 1 on the left side and the right side, wherein the first cross rod 61, the second cross rod 62 and the third cross rod 63 all extend along the left-right direction, the left end and the right end of the first cross rod 61 are respectively connected with the front brackets 11 on the left side and the right side through a first cross shaft 71 in a rotating way, the left end and the right end of the second cross rod 62 are respectively connected with the rear brackets 12 on the left side and the right side through a second cross shaft 72 in a rotating way, and the left end and the right end of the third cross rod 63 are respectively connected with the first rods 133 on the left side and the right side through a third cross shaft 73 in a rotating way. In order to make the stability of the stroller frame in the unfolded position stronger, the cross support preferably further includes a fourth cross bar 64, the fourth cross bar 64 extends in the left-right direction, and the left and right ends of the fourth cross bar 64 are respectively rotatably connected to the rear links 16 on the left and right sides through a fourth transverse shaft 74. A unidirectional rotation limiting mechanism is provided between the first cross bar 61 and the front brackets 11 on the left and right sides, between the second cross bar 62 and the rear brackets 12 on the left and right sides, between the third cross bar 63 and the first bars 133 on the left and right sides, and between the fourth cross bar 64 and the rear links 16 on the left and right sides, by which the side brackets 1 on the left and right sides can be rotated only in one direction, respectively, but cannot be rotated in the other direction. In this embodiment, when the stroller is folded twice, the side brackets 1 on both sides can be folded around the first transverse axis 71, the second transverse axis 72, the third transverse axis 73 and the fourth transverse axis 74, respectively, so that the volume of the folded stroller is smaller. When the stroller is in the secondary folded state, the front wheel assemblies 21 and the rear wheel assemblies 22 on both sides are arranged side by side in the front-rear direction, and in each side of the stroller, one of the two parts of the first wheel axle 31 and the second wheel axle 32 located on the inner side is located within the contour of the one of the two parts of the front wheel assemblies 21 and the rear wheel assemblies 22 located on the outer side.
The specific structure of each unidirectional rotation limiting mechanism is not the gist of the present invention, and the structure in the prior art can be adopted.
The locking mechanism comprises a first locking mechanism arranged between the upper push rod 132 and the lower push rod 131 and a second locking mechanism arranged between any two parts which are connected in a rotating way in the two four-bar mechanisms, wherein the first locking mechanism and the second locking mechanism can be unlocked independently, and the second locking mechanism can be triggered to be unlocked when the upper push rod 132 slides downwards relative to the lower push rod 131 after the first locking mechanism is unlocked. The specific structures of the first locking mechanism and the second locking mechanism are not the technical points to be protected in the patent, and all the structures in the prior art can be adopted.
When the stroller is in the unfolded state, the first locking mechanism and the second locking mechanism are both in the locked state, an included angle of 95-150 degrees is formed between the first straight line 51 and the second straight line 52, the distance between the axis connecting lines of the first wheel axle 31 and the second wheel axle 32 is kept at 400-500 mm, and the first rod 133 and the third cross rod 63 extend along the same straight line direction, as shown in fig. 1-3.
When the stroller is folded, the first locking mechanism is unlocked firstly, after the upper push rod 132 slides downwards for a certain distance along the length extending direction of the lower push rod 131, the second locking mechanism is unlocked, then the push rod assembly 13 is turned forwards, the side handrail 14 turns downwards around the second side shaft 42 to be close to the rear bracket 12, the front bracket 11 is driven to turn backwards around the first side shaft 41 by the front connecting rod 15 and the rear connecting rod 16 to be close to the rear bracket 12 until each rod piece forming the side bracket 1 is tightly close together, the front wheel assemblies 21 on the left side and the right side are respectively accommodated at the inner side of the side bracket 1 on each side, the rear wheel assemblies 22 are respectively positioned at the outer side of the side bracket 1 on each side, preferably the first wheel shaft 31 and the second wheel shaft 32 extend along the same straight line direction, so as to finish the folding, at this time, the folded structure is shown in fig. 5, at this time, the first rod 133 and the third cross rod 63 still extend along the same straight line direction, and the distance between one part positioned below the first wheel shaft 31 and the second wheel shaft 32 and the upper end face of the push rod assembly 13 is 230-330 mm. Then, the second folding is performed, and during the second folding, the side frames 1 on both sides are turned and folded toward the inside of the stroller around the first transverse shaft 71, the second transverse shaft 72, the third transverse shaft 73 and the fourth transverse shaft 74, respectively, and finally the folding is performed as shown in fig. 6 and 7, and at this time, the front wheel assembly 21 is located at the rear side of the side frame 1, the rear wheel assembly 22 is located at the front side of the side frame 1, the first transverse shaft 71, the second transverse shaft 72, the third transverse shaft 73 and the fourth transverse shaft 74 extend in the same straight line direction, the first lever 133 is perpendicular to the third transverse shaft 63, and the distance between the lower one of the two members of the first wheel axle 31 and the second wheel axle 32 and the upper end surface of the push rod assembly 13 is the same as that after the first folding. The folding child stroller has the advantages of compact structure, small volume and convenient carrying and storage.
Example 2
As shown in fig. 8 to 11, in the present embodiment, the rear wheel assemblies 22 on the left and right sides are respectively rotatably connected to the inner side of the rear bracket 12, and in each of the left and right sides, the front wheel assemblies 21 are located outside the first side shaft 41, and the rear wheel assemblies 22 are located inside the first side shaft 41.
Thus, after the child stroller is folded once, the front wheel assemblies 21 on the left and right sides are respectively accommodated outside the side frames 1 on each side, and the rear wheel assemblies 22 are respectively positioned inside the side frames 1 on each side, as shown in fig. 9. After the secondary folding of the stroller is completed, the front wheel assembly 21 is located on the front side of the side frame 1, and the rear wheel assembly 22 is located on the rear side of the side frame 1, as shown in fig. 10, except for this difference, the same as in embodiment 1.
Example 3
In this embodiment, the cross brace bracket includes a first cross bar 61, a second cross bar 62 and a third cross bar 63, where the first cross bar 61, the second cross bar 62 and the third cross bar 63 all extend along the left-right direction, the first cross bar 61 is connected between the front brackets 11 on the left and right sides, the second cross bar 62 is connected between the rear brackets 12 on the left and right sides, the third cross bar 63 is connected between the first bars 133 on the left and right sides, and the first cross bar 61, the second cross bar 62 and the third cross bar 63 are telescopic bars that can extend along the left and right directions. In order to make the stability of the stroller frame in the unfolded position stronger, the cross-brace bracket preferably further includes a fourth cross bar 64, the fourth cross bar 64 extends in the left-right direction, the fourth cross bar 64 is connected between the rear links 16 on the left and right sides, and the fourth cross bar 64 is also a telescopic rod that can be extended and retracted in the left-right direction. The remainder was the same as in example 1. Thus, when the stroller is folded for the second time, the left and right side brackets 1 are pushed to the inner sides of the stroller respectively, the first cross bar 61, the second cross bar 62, the third cross bar 63 and the fourth cross bar 64 are contracted, and the side brackets 1 on the two sides are close together, so that the transverse folding of the stroller is realized.
Example 4
In this embodiment, the cross brace bracket includes a first cross bar 61, a second cross bar 62 and a third cross bar 63, where the first cross bar 61, the second cross bar 62 and the third cross bar 63 all extend along the left-right direction, the first cross bar 61 is connected between the front brackets 11 on the left and right sides, the second cross bar 62 is connected between the rear brackets 12 on the left and right sides, the third cross bar 63 is connected between the first bars 133 on the left and right sides, and the first cross bar 61, the second cross bar 62 and the third cross bar 63 are telescopic bars that can extend along the left and right directions. In order to make the stability of the stroller frame in the unfolded position stronger, the cross-brace bracket preferably further includes a fourth cross bar 64, the fourth cross bar 64 extends in the left-right direction, the fourth cross bar 64 is connected between the rear links 16 on the left and right sides, and the fourth cross bar 64 is also a telescopic rod that can be extended and retracted in the left-right direction. The remainder was the same as in example 2. Thus, when the stroller is folded for the second time, the left and right side brackets 1 are pushed to the inner sides of the stroller respectively, the first cross bar 61, the second cross bar 62, the third cross bar 63 and the fourth cross bar 64 are contracted, and the side brackets 1 on the two sides are close together, so that the transverse folding of the stroller is realized.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (10)
1. The utility model provides a children's shallow, includes that has the shallow frame of expansion state and folding state, sets up the anterior front wheel subassembly in the below of shallow frame, sets up the rear wheel subassembly in the below rear portion of shallow frame and is used for with the locking mechanical system of shallow frame locking in expansion state, its characterized in that:
The cart frame comprises side brackets positioned at the left side and the right side respectively, and a transverse support bracket connected between the side brackets at the left side and the right side, wherein each side bracket comprises a front bracket, a rear bracket, a push rod assembly and a side handrail;
the front wheel assembly is rotationally arranged at the lower part of the front bracket through a first wheel shaft, and the rear wheel assembly is rotationally arranged at the lower part of the rear bracket through a second wheel shaft;
The upper part of the front support is rotationally connected with the upper part of the rear support, the lower part of the side handrail is rotationally connected with at least one of the upper part of the front support and the upper part of the rear support, and the upper part of the side handrail is rotationally connected with the lower part of the push rod assembly;
The included angle between the whole extending direction of the front support and the horizontal plane is smaller than the included angle between the whole extending direction of the side handrail and the horizontal plane;
The child stroller can be folded once, when the child stroller is folded once, the side armrests turn downwards to be close to the rear support, and the front support turns backwards to be close to the rear support.
2. The stroller of claim 1, wherein: the upper part of the front bracket is rotatably connected with the upper part of the rear bracket through a first side shaft, and the lower part of the side handrail is rotatably connected with at least one of the upper part of the front bracket and the upper part of the rear bracket through a second side shaft; the push rod assembly comprises a lower push rod and an upper push rod which is arranged on the lower push rod in a sliding manner along the length extension direction of the lower push rod, and the upper part of the side handrail is rotationally connected with the lower part of the lower push rod through a third side shaft;
When the folding device is folded once, the upper push rod slides downwards along the length extending direction of the lower push rod, and then the push rod assembly is turned forwards, so that the side armrest turns downwards around the second side shaft to be close to the rear support, the push rod assembly turns backwards around the first side shaft to be close to the rear support, and the front support turns backwards around the first side shaft to be close to the rear support.
3. The stroller of claim 2, wherein: after one folding, the distance between one part of the first wheel axle and the second wheel axle, which is positioned below, and the upper end surface of the push rod assembly is 230-330 mm.
4. The stroller of claim 2, wherein: the side brackets on each side further comprise a front link and a rear link; one end part of the rear connecting rod is rotationally connected with the lower part of the push rod assembly, the other end part of the rear connecting rod is rotationally connected with one end part of the front connecting rod, the rear connecting rod is rotationally connected with the rear bracket, and the other end part of the front connecting rod is rotationally connected with the front bracket;
The push rod assembly is turned forwards to drive the side armrests to be turned downwards to be close to the rear support, and the front support is driven to be turned backwards to be close to the rear support through the front connecting rod and the rear connecting rod.
5. The stroller of claim 1, wherein: the upper part of the front bracket is rotatably connected with the upper part of the rear bracket through a first side shaft, and the lower part of the side handrail is rotatably connected with at least one of the upper part of the front bracket and the upper part of the rear bracket through a second side shaft; a first straight line is formed between the first wheel axle and the axis connecting line of the first side shaft, a second straight line is formed between the second wheel axle and the axis connecting line of the first side shaft, and when the stroller is in an unfolding state, an included angle between the first straight line and the second straight line is set to be 95-150 degrees.
6. The stroller of claim 1, wherein: when the child stroller is in the unfolded state, the distance between the axis connecting lines of the first wheel axle and the second wheel axle is set to be 400-500 mm.
7. The stroller of claim 1, wherein: when the child stroller is in a one-time folded state, the front wheel assemblies and the rear wheel assemblies on two sides are arranged side by side along the left-right direction, and one part, located on the inner side, of the two parts of the first wheel shaft and the second wheel shaft is located in the outline of one part, located on the outer side, of the two parts of the front wheel assemblies and the rear wheel assemblies in each of the left-right sides of the child stroller;
or when the child stroller is in a one-time folded state, the first wheel axle and the second wheel axle extend along the same straight line direction;
Or when the child stroller is in a one-time folded state, the front wheel assembly and the rear wheel assembly on each side are respectively positioned on the inner side and the outer side of the side bracket on the same side.
8. The stroller of claim 1, wherein: the upper part of the front bracket is rotationally connected with the upper part of the rear bracket through a first side shaft, when the child stroller is in a unfolded state, the rear wheel assemblies on the left side and the right side are respectively rotationally connected to the outer side of the rear bracket, in each of the left side and the right side, the front wheel assemblies are all positioned on the inner side of the first side shaft, and the rear wheel assemblies are all positioned on the outer side of the first side shaft;
Or the upper part of the front bracket is rotationally connected with the upper part of the rear bracket through a first side shaft, when the child stroller is in a unfolded state, the rear wheel assemblies on the left side and the right side are respectively rotationally connected with the inner side of the rear bracket, in each of the left side and the right side, the front wheel assemblies are all positioned on the outer side of the first side shaft, and the rear wheel assemblies are all positioned on the inner side of the first side shaft.
9. The stroller of any one of claims 1-8, wherein: the child stroller can be folded for the second time, when the child stroller is in the second folding state, the front wheel assemblies and the rear wheel assemblies on two sides are arranged side by side along the front-rear direction, and in each side of the child stroller, one of the first wheel axle and the second wheel axle, which is located on the inner side, is located in the outline of one of the front wheel assemblies and the rear wheel assemblies, which is located on the outer side.
10. The stroller of claim 9, wherein: the cross brace bracket includes:
The first cross rod extends along the left-right direction, and the left end part and the right end part of the first cross rod are respectively and rotatably connected with the front brackets at the left side and the right side through a first transverse shaft;
the left end and the right end of the second cross rod are respectively and rotatably connected with the rear brackets on the left side and the right side through a second transverse shaft;
the left end and the right end of the third cross rod are respectively connected with the push rod assemblies on the left side and the right side in a rotating way through a third transverse shaft;
when the child stroller is folded for the second time, the side brackets on the two sides respectively turn around the first transverse shaft, the second transverse shaft and the third transverse shaft to the inner side of the child stroller;
When the child stroller is in the secondary folded state, the first transverse axis, the second transverse axis and the third transverse axis located on each of the left and right sides of the stroller frame all extend in the same straight line direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410157867.1A CN118082952A (en) | 2017-08-29 | 2017-08-29 | Child cart |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710753536.4A CN107697142B (en) | 2017-08-29 | 2017-08-29 | Child cart |
| CN202410157867.1A CN118082952A (en) | 2017-08-29 | 2017-08-29 | Child cart |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710753536.4A Division CN107697142B (en) | 2017-08-29 | 2017-08-29 | Child cart |
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| CN118082952A true CN118082952A (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410157867.1A Pending CN118082952A (en) | 2017-08-29 | 2017-08-29 | Child cart |
| CN201710753536.4A Active CN107697142B (en) | 2017-08-29 | 2017-08-29 | Child cart |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710753536.4A Active CN107697142B (en) | 2017-08-29 | 2017-08-29 | Child cart |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108528511B (en) * | 2018-06-06 | 2024-06-21 | 湖北洋田塑料制品有限公司 | Child cart |
| CN111391908B (en) * | 2020-01-22 | 2021-09-28 | 好孩子儿童用品有限公司 | Children's barrow |
| CN113665656A (en) * | 2020-05-14 | 2021-11-19 | 昆山爱果儿童用品有限公司 | Children's shallow skeleton and be equipped with children's shallow of this skeleton |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386999B (en) * | 2012-05-09 | 2015-07-01 | 好孩子儿童用品有限公司 | Stroller |
| CN103507846B (en) * | 2013-09-05 | 2016-04-13 | 好孩子儿童用品有限公司 | Children trolley |
| CN104340254B (en) * | 2014-11-07 | 2017-08-08 | 好孩子儿童用品有限公司 | It is a kind of can twice-folded children trolley |
| CN105346585A (en) * | 2015-11-23 | 2016-02-24 | 好孩子儿童用品有限公司 | Baby stroller |
| CN205769511U (en) * | 2016-05-20 | 2016-12-07 | 好孩子儿童用品有限公司 | Children trolley |
| CN106515829B (en) * | 2016-12-14 | 2020-09-01 | 好孩子儿童用品有限公司 | Children's barrow |
| CN207311560U (en) * | 2017-08-29 | 2018-05-04 | 好孩子儿童用品有限公司 | Children trolley |
| CN207173693U (en) * | 2017-08-29 | 2018-04-03 | 好孩子儿童用品有限公司 | Children trolley |
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2017
- 2017-08-29 CN CN202410157867.1A patent/CN118082952A/en active Pending
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| CN107697142A (en) | 2018-02-16 |
| CN107697142B (en) | 2024-06-04 |
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