CN111152827B - Child cart - Google Patents
Child cart Download PDFInfo
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- CN111152827B CN111152827B CN202010073256.0A CN202010073256A CN111152827B CN 111152827 B CN111152827 B CN 111152827B CN 202010073256 A CN202010073256 A CN 202010073256A CN 111152827 B CN111152827 B CN 111152827B
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- rod
- axis
- frame
- rotatably connected
- unfolded state
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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
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
本发明公开了一种儿童推车，包括车架，车架包括左侧支架、右侧支架，左侧支架和右侧支架都包括：第一底架；第二底架，第二底架包括上杆和与上杆上下滑动连接的下杆；侧杆，第一底架的上端部、上杆的上端部、以及侧杆的下端部三个部件中的其中两个部件转动连接，第三个部件与两个部件中的至少一个转动连接；撑杆，撑杆与上杆转动连接；推杆，推杆的下部分别与侧杆的上端部和撑杆的上端部转动连接；第一连杆，第一连杆的一端部与第一底架的下部转动连接；第二连杆，第二连杆的一端部与第一连杆转动连接，第二连杆的另一端部与上杆转动连接；连接件，连接件的上部与撑杆的下部转动连接，连接件的下部与第二连杆转动连接。
The invention discloses a stroller for children, comprising a frame, the frame comprising a left bracket and a right bracket, both of which comprise: a first base frame; a second base frame, the second base frame comprising an upper rod and a lower rod connected to the upper rod for vertical sliding; a side rod, two of three components of the upper end portion of the first base frame, the upper end portion of the upper rod, and the lower end portion of the side rod being rotatably connected, and the third component being rotatably connected to at least one of the two components; a strut, the strut being rotatably connected to the upper rod; a push rod, the lower portion of the push rod being rotatably connected to the upper end portion of the side rod and the upper end portion of the strut, respectively; a first connecting rod, one end portion of the first connecting rod being rotatably connected to the lower portion of the first base frame; a second connecting rod, one end portion of the second connecting rod being rotatably connected to the first connecting rod, and the other end portion of the second connecting rod being rotatably connected to the upper rod; a connecting piece, the upper portion of the connecting piece being rotatably connected to the lower portion of the strut, and the lower portion of the connecting piece being rotatably connected to the second connecting rod.
Description
Technical Field
The invention relates to the field of children products, in particular to a child trolley.
Background
In the prior art, the stroller is often foldable for convenience in carrying and storing. 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. Meanwhile, the length of a front support or a rear support of the folded trolley in the prior art is too long, so that the whole volume of the trolley is larger.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an improved child stroller, wherein a front bracket or a rear bracket of the child stroller is telescopic, so that the volume of the folded stroller is smaller.
In order to achieve the aim, the technical scheme adopted by the invention is that the children's barrow comprises a frame with an unfolding state and a first folding state, a first wheel assembly, a second wheel assembly, a locking mechanism for locking the frame in the unfolding state and a seat arranged on the frame, wherein the frame comprises a left side bracket positioned at the left side part, a right side bracket positioned at the right side part and a connecting frame connected between the left side bracket and the right side bracket, the left side bracket and the right side bracket comprise a first underframe, and the lower end part of the first underframe is connected with the first wheel assembly; the first frame comprises an upper rod, a lower rod, a side rod, a second frame, a brace rod, a push rod, a first connecting rod, a second connecting rod, a first connecting rod and a second connecting rod, wherein the upper rod is arranged below the upper rod and is in up-down sliding connection with the upper rod, the lower end part of the lower rod is connected with the second wheel assembly, the upper end part of the first frame, the upper end part of the upper rod and the lower end part of the side rod are respectively in rotary connection with two parts of the upper rod, the third part is in rotary connection with one of the two parts, the brace rod is in rotary connection with the upper rod through a first shaft, the lower part of the push rod is respectively in rotary connection with the upper end part of the side rod and the upper end part of the brace rod, the first connecting rod extends in the front-back direction in the unfolded state of the frame, one end part of the first connecting rod is in rotary connection with the lower part of the first frame through a second shaft, the second connecting rod extends in the front-back direction in the unfolded state of the frame, the first connecting rod is in rotary connection with the first connecting rod, the other end part of the second connecting rod is rotationally connected with the upper rod, the connecting piece extends along the up-down direction in the unfolded state of the frame, the upper part of the connecting piece is rotationally connected with the lower part of the supporting rod through a fourth shaft, the fourth shaft is positioned below the first shaft in the unfolded state of the frame, the lower part of the connecting piece is rotationally connected with the second connecting rod, one of the first underframe and the second underframe extends obliquely from front to back and upwards in the unfolded state of the frame, and the other extends obliquely from back to front and upwards.
Further, the first wheel assembly is a front wheel assembly and the second wheel assembly is a rear wheel assembly.
Further, the stroller further includes a drive mechanism for driving the lower bar to slide upwardly relative to the upper bar when the stroller frame is transitioned from the unfolded state to the first folded state, and/or for driving the lower bar to slide downwardly relative to the upper bar when the stroller frame is transitioned from the first folded state to the unfolded state.
Further, the upper rod is slidably inserted into the lower rod or the lower rod is slidably inserted into the upper rod, the driving mechanism is an elastic member arranged between the upper rod and the lower rod, and the elastic member is used for providing an elastic force required for enabling the lower rod to slide downwards relative to the upper rod.
Further, the driving mechanism is a driving rod, the driving rod extends along the front-rear direction in the unfolded state of the frame, one end of the driving rod is rotationally connected with the lower rod, the other end of the driving rod is rotationally connected with the first connecting rod through a fifth shaft, and the third shaft is located between the second shaft and the fifth shaft.
Further, the driving mechanism is a driving rod, the driving rod extends in the front-rear direction in the unfolded state of the frame, one end portion of the driving rod is rotatably connected with the lower rod, and in the unfolded state of the frame, the other end portion of the driving rod is rotatably connected with the lower portion of the supporting rod or the connecting piece below the first shaft.
Further, the driving rod is rotatably connected with the lower rod through a sixth shaft, a guide groove extending along the extending direction of the upper rod is formed in the upper rod, and the sixth shaft is slidably arranged in the guide groove.
The connecting frame comprises a first cross rod, a second cross rod, an upper cross rod, a frame and a frame, wherein one end of the first cross rod is in one-to-one axis rotation connection with a first chassis of a left side support, the other end of the first cross rod is in two-to-one axis rotation connection with a first chassis of a right side support, one end of the second cross rod is in two-to-one axis rotation connection with a second chassis of the left side support, the other end of the second cross rod is in two-to-two axis rotation connection with a second chassis of the right side support, one end of the upper cross rod is in one-to-three axis rotation connection with a push rod of the left side support, the other end of the upper cross rod is in two-to-three axis rotation connection with a push rod of the right side support, and the frame is further provided with a second folding state.
Further, one end of the second cross rod is rotatably connected with the upper rod of the left side bracket through a two-shaft, and the other end of the second cross rod is rotatably connected with the upper rod of the right side bracket through a two-shaft.
Further, when the frame is in the second folded state, the axis of the one-axis is parallel to the axis of the one-axis, the axis of the two-axis is parallel to the axis of the two-axis, or the axis of the one-axis is coincident with the axis of the one-axis, and the axis of the two-axis is coincident with the axis of the two-axis.
Further, the connecting frame further comprises a connecting rod cross rod, one end part of the connecting rod cross rod is rotationally connected with the stay bar of the left side support through a four-shaft, the other end part of the connecting rod cross rod is rotationally connected with the stay bar of the right side support through two four-shafts, when the frame is in the second folded state, the axial lead of one shaft and the axial lead of one shaft are parallel or coincide with the axial lead of one four shafts, and the corresponding axial lead of two shafts, the axial lead of two shafts and the axial lead of two shafts are parallel or coincide with the axial lead of two shafts and four shafts.
The invention aims to provide another child stroller.
In order to achieve the aim, the technical scheme adopted by the invention is that the children's barrow comprises a frame with an unfolding state and a first folding state, a first wheel assembly, a second wheel assembly, a locking mechanism for locking the frame in the unfolding state and a seat arranged on the frame, wherein the frame comprises a left side bracket positioned at the left side part, a right side bracket positioned at the right side part and a connecting frame connected between the left side bracket and the right side bracket, and the children's barrow is characterized in that the left side bracket and the right side bracket comprise a first underframe, and the lower end part of the first underframe is connected with the first wheel assembly; the first frame comprises an upper rod, a lower rod, a side rod, a second frame, a brace rod, a push rod, a first connecting rod, a second connecting rod, a first connecting rod and a second connecting rod, wherein the upper rod is arranged below the upper rod and is in up-down sliding connection with the upper rod, the lower end part of the lower rod is connected with the second wheel assembly, the upper end part of the first frame, the upper end part of the upper rod and the lower end part of the side rod are respectively in rotary connection with two parts of the upper rod, the third part is in rotary connection with one of the two parts, the brace rod is in rotary connection with the upper rod through a first shaft, the lower part of the push rod is respectively in rotary connection with the upper end part of the side rod and the upper end part of the brace rod, the first connecting rod extends in the front-back direction in the unfolded state of the frame, one end part of the first connecting rod is in rotary connection with the lower part of the first frame through a second shaft, the second connecting rod extends in the front-back direction in the unfolded state of the frame, the first connecting rod is in rotary connection with the first connecting rod, the other end part of the second connecting rod is rotationally connected with the upper rod, the connecting piece is connected with the second connecting rod in a sliding mode along the front-back direction, the lower part of the supporting rod is connected with the connecting piece, one of the first underframe and the second underframe extends obliquely from front to back and upwards in the unfolded state of the frame, and the other extends obliquely from back to front and upwards.
Further, the lower portion of the stay rod is rotatably connected with the connecting piece through a fourth shaft, and the fourth shaft is located below the first shaft in the unfolded state of the frame.
Further, the lower part of the stay bar is fixedly connected with the connecting piece.
Further, the stroller further includes a drive mechanism for driving the lower bar to slide upwardly relative to the upper bar when the stroller frame is transitioned from the unfolded state to the first folded state, and/or for driving the lower bar to slide downwardly relative to the upper bar when the stroller frame is transitioned from the first folded state to the unfolded state.
The connecting frame comprises a first cross rod, a second cross rod, an upper cross rod, a frame and a frame, wherein one end of the first cross rod is in one-to-one axis rotation connection with a first chassis of a left side support, the other end of the first cross rod is in two-to-one axis rotation connection with a first chassis of a right side support, one end of the second cross rod is in two-to-one axis rotation connection with a second chassis of the left side support, the other end of the second cross rod is in two-to-two axis rotation connection with a second chassis of the right side support, one end of the upper cross rod is in one-to-three axis rotation connection with a push rod of the left side support, the other end of the upper cross rod is in two-to-three axis rotation connection with a push rod of the right side support, and the frame is further provided with a second folding state.
Due to the application of the technical scheme, the child stroller has the advantages that the child stroller is convenient to fold and unfold, convenient for consumers to use, and more compact in folded structure due to the fact that the second underframe is arranged to be the telescopic rod assembly.
Drawings
FIG. 1 is a side view of the frame of the stroller of the present invention in an expanded state (embodiment 1);
FIG. 2 is a perspective view of the frame of the stroller of the present invention in an expanded state (example 1);
FIG. 3 is a perspective view of the frame of the stroller of the present invention in an expanded state (embodiment 1);
FIG. 4 is a side view of the stroller frame of the present invention during transition between the unfolded state and the first folded state (embodiment 1);
FIG. 5 is a perspective view of the stroller frame of the present invention (embodiment 1) during the transition between the unfolded state and the first folded state;
FIG. 6 is a perspective view of the stroller frame according to the present invention from another perspective (embodiment 1) during the transition between the unfolded state and the first folded state;
FIG. 7 is a perspective view of the frame of the stroller of the present invention in a first folded state (embodiment 1);
FIG. 8 is a perspective view of the frame of the stroller of the present invention in a first folded state (embodiment 1);
Fig. 9 is a perspective view of the frame of the stroller of the present invention in a second folded state (embodiment 1);
FIG. 10 is a perspective view of the frame of the stroller of the present invention in a second folded state (embodiment 1);
FIG. 11 is a front view of the stroller frame of the present invention in a second folded state (embodiment 1);
FIG. 12 is a side view of the frame of the stroller of the present invention in an expanded state (example 2);
FIG. 13 is a perspective view of the frame of the stroller of the present invention in an expanded state (example 2);
FIG. 14 is a side view of the stroller frame of the present invention during transition between the unfolded state and the first folded state (example 2);
FIG. 15 is a perspective view of the stroller frame of the present invention during the transition between the unfolded state and the first folded state (embodiment 2);
FIG. 16 is a perspective view of the frame of the stroller of the present invention in a first folded state (embodiment 2);
FIG. 17 is a perspective view of the frame of the stroller of the present invention in a first folded state (embodiment 2);
fig. 18 is a perspective view of the frame of the stroller of the present invention in a second folded state (embodiment 2);
FIG. 19 is a perspective view of another view of the frame of the stroller in a second folded state (embodiment 2);
FIG. 20 is a front view of the stroller frame of the present invention in a second folded state (embodiment 2);
FIG. 21 is a side view of the frame of the stroller of the present invention in an expanded state (example 3);
FIG. 22 is a perspective view of the frame of the stroller of the present invention in an expanded state (example 3);
FIG. 23 is a side view of the stroller frame of the present invention during transition between the unfolded state and the first folded state (embodiment 3);
FIG. 24 is a perspective view of the stroller frame of the present invention during the transition between the unfolded state and the first folded state (embodiment 3);
FIG. 25 is a side view of the frame of the stroller of the present invention in an expanded state (example 4);
FIG. 26 is a perspective view of the frame of the stroller of the present invention in an expanded state (example 4);
FIG. 27 is a perspective view of the frame of the stroller of the present invention in an expanded state (example 5);
FIG. 28 is a side cross-sectional view of the frame of the stroller of the present invention in an expanded state (example 6);
FIG. 29 is a side view of the frame of the stroller of the present invention in an expanded state (example 7);
FIG. 30 is a perspective view of the frame of the stroller of the present invention in an expanded state (example 7);
FIG. 31 is a side view of the stroller frame of the present invention during transition between the unfolded state and the first folded state (example 7);
fig. 32 is a perspective view of the stroller frame of the present invention in the transition between the unfolded state and the first folded state (embodiment 7).
The reference numerals in the figures are:
1a, a first wheel assembly, 1b, a second wheel assembly, 2a, a left side bracket, 2b, a right side bracket, 3a, a first cross bar, 3b, a second cross bar, 3c, an upper cross bar, 3d, a connecting rod cross bar, 4, a first underframe, 5a, an upper bar, 5b, a lower bar, 6, a side bar, 7, a brace, 8, a push rod, 9, a first connecting rod, 10, a second connecting rod, 11, a connecting piece, 12, a driving rod, 13, a guide groove, 14, an elastic piece, 41, a first shaft, 42, a second shaft, 43, a third shaft, 44, a fourth shaft, 45, a fifth shaft, 46, a sixth shaft, 51, a one-shaft, 52, a two-shaft, 53, a three shaft, 54, a four-shaft, 61, two-shaft, 62, two-shaft, 63, two-shaft, 64, two-four-shaft.
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 11, the stroller of the present embodiment includes a frame having a unfolded state and a first folded state, a first wheel assembly 1a, a second wheel assembly 1b, a locking mechanism (not shown) for locking the frame in the unfolded state, and a seat provided on the frame, the frame including a left side bracket 2a located at a left side portion, a right side bracket 2b located at a right side portion, and a connection frame connected between the left side bracket 2a and the right side bracket 2b, and the left side bracket 2a and the right side bracket 2b each include:
A first chassis 4, a lower end portion of the first chassis 4 being connected to the first wheel assembly 1 a;
The second chassis is a telescopic rod assembly, the second chassis comprises an upper rod 5a and a lower rod 5b which is arranged below the upper rod 5a and is connected with the upper rod 5a in an up-down sliding manner, the lower end part of the lower rod 5b is connected with the second wheel assembly 1b, in the embodiment, the first chassis 4 extends obliquely from front to back and upwards in the unfolded state of the frame, the second chassis extends obliquely from back to front and upwards in the unfolded state of the frame, the first wheel assembly 1a is a front wheel assembly, and the second wheel assembly 1b is a rear wheel assembly;
a side lever 6, two of three members of an upper end portion of the first chassis 4, an upper end portion of the upper lever 5a, and a lower end portion of the side lever 6 are rotatably connected, and a third member is rotatably connected to one of the two members, and in this embodiment, it is preferable to provide that the upper end portion of the first chassis 4 is rotatably connected to the upper end portion of the upper lever 5a, and the lower end portion of the side lever 6 is rotatably connected to the upper end portion of the upper lever 5 a;
a stay bar 7, the stay bar 7 and the upper bar 5a are rotatably connected through a first shaft 41;
The lower part of the push rod 8 is respectively and rotatably connected with the upper end parts of the side rods 6 and the upper end parts of the supporting rods 7;
A first link 9, the first link 9 extending in the front-rear direction in the unfolded state of the frame, and a front end portion of the first link 9 being rotatably connected to a lower portion of the first chassis 4 by a second shaft 42;
A second link 10, the second link 10 extending in the front-rear direction in the unfolded state of the frame, the front end portion of the second link 10 being rotatably connected to the first link 9 through a third shaft 43, the rear end portion of the second link 10 being rotatably connected to the upper rod 5 a;
The connecting piece 11, the connecting piece 11 and the second connecting rod 10 are slidingly connected along the front-back direction, the lower part of the supporting rod 7 is connected with the connecting piece 11, when the connecting piece 11 and the second connecting rod 10 are slidingly connected, the connecting way of the connecting piece 11 and the lower part of the supporting rod 7 can be fixed connection or rotary connection, specifically, the connecting piece 11 is a sliding sleeve in the embodiment, the lower part of the supporting rod 7 and the connecting piece 11 are rotationally connected through a fourth shaft 44, and the fourth shaft 44 is positioned below the first shaft 41 in the unfolded state of the frame.
The stroller further comprises a driving mechanism for driving the lower rod 5b to slide upwards relative to the upper rod 4a when the stroller frame is converted from the unfolded state to the first folded state, or/and for driving the lower rod 5b to slide downwards relative to the upper rod 5a when the stroller frame is converted from the first folded state to the unfolded state, wherein the driving mechanism is a driving rod 12, the driving rod 12 extends in the front-rear direction in the unfolded state of the stroller frame, the rear end part of the driving rod 12 is rotationally connected with the lower rod 5b through a sixth shaft 46, the front end part of the driving rod 12 is rotationally connected with the first connecting rod 9 through a fifth shaft 45, and a guide groove 13 extending along the extending direction of the upper rod 5a is optimally formed in the upper rod 5a, the sixth shaft 46 is slidably arranged in the guide groove 13, the driving rod 12 is arranged so that the second chassis can be synchronously shortened under the driving of the driving rod 12 when the stroller frame is folded, and the second chassis can be synchronously lengthened under the driving of the driving rod 12 when the stroller frame is unfolded.
The link includes:
The first cross bar 3a, one end part of the first cross bar 3a is rotationally connected with the first underframe 4 of the left side bracket 2a through a one-to-one shaft 51, and the other end part of the first cross bar 3a is rotationally connected with the first underframe 4 of the right side bracket 2b through a two-to-one shaft 61;
the second cross bar 3b, one end of the second cross bar 3b is rotatably connected with the upper bar 5a of the second chassis of the left side bracket 2a through a two-shaft 52, and the other end of the second cross bar 3b is rotatably connected with the upper bar 5a of the second chassis of the right side bracket 2b through a two-shaft 62;
The upper cross rod 3c, one end part of the upper cross rod 3c is rotationally connected with the push rod 8 of the left side bracket 2a through a triaxial 53, and the other end part of the upper cross rod 3c is rotationally connected with the push rod 8 of the right side bracket 2b through a triaxial 63;
the frame also has a second folding state, when the frame is converted from the first folding state to the second folding state, the left side bracket 2a is folded and overturned around the one-axis 51, the two-axis 52 and the one-axis 53 respectively relative to the connecting frame, and the right side bracket 2b is folded and overturned around the two-axis 61, the two-axis 62 and the two-axis 63 respectively relative to the connecting frame.
As shown in fig. 9-11, when the frame is in the second folded state, the axes of the one-axis 51, the two-axis 52 and the one-axis 53 are parallel, the axes of the two-axis 61 and the two-axis 62 are parallel, and preferably, the axes of the one-axis 51, the two-axis 52 and the one-axis 53 are coincident, and the axes of the two-axis 61 and the two-axis 62 are coincident with the axes of the two-axis 63, so that the left bracket 2a and the right bracket 2b can be better drawn together relative to the connecting frame in the second folded state of the frame.
In order to make the stability of the frame in the unfolded state stronger, the preferred connecting frame further comprises a connecting rod cross rod 3d, one end of the connecting rod cross rod 3d is rotationally connected with the stay rod 7 of the left side bracket 2a through a four-shaft 54, the other end of the connecting rod cross rod 3d is rotationally connected with the stay rod 7 of the right side bracket 2b through a two four-shaft 64, as shown in fig. 9-11, when the frame is in the second folded state, the axes of the one-shaft 51, the two-shaft 52 and the three-shaft 53 are parallel or coincident with the axes of the four-shaft 54, and the axes of the corresponding two-shaft 61, the two-shaft 62 and the two-shaft 63 are parallel or coincident with the axes of the two four-shaft 64.
Under the premise of not increasing the length of the first underframe 4, the second underframe is set to be a telescopic rod assembly, so that in the unfolded state of the frame, the length of the second underframe is prolonged, a basket for placing sundries is arranged at the bottom of the frame in a spacious way, the height of a seat on the frame from the horizontal plane of a stroller is correspondingly increased, an included angle alpha is formed between the first underframe 4 and the side rod 6, the included angle alpha is 135-180 degrees, and the preferable included angle alpha is 160 degrees.
In this embodiment, the width of the first wheel assembly 1a in the left-right direction is smaller than the width of the second wheel assembly 1b in the left-right direction in the unfolded state of the frame, so that as shown in fig. 7-8, in the first folded state of the frame, the first wheel assembly 1a is folded inside the second wheel assembly 1b, so that the folding volume of the stroller in the first folded state is smaller, and the stroller is further folded into the second folded state.
When the frame of the stroller is converted from the unfolded state to the first folded state, the push rod 8 is pressed downwards, the push rod 8 drives the side rod 6 to rotate backwards and downwards around a rotating connecting point with the upper end part of the upper rod 5a, the push rod 8 drives the supporting rod 7 to rotate backwards and downwards around the first shaft 41 and to be close to the second underframe, the supporting rod 7 drives the connecting piece 11 to slide forwards from back to back on the second connecting rod 10, the second underframe is close to the first underframe 4, the first connecting rod 9, the second connecting rod 10 and the driving rod 12 are driven to be close to each other, the driving rod 12 drives the lower rod 5b to slide upwards relative to the upper rod 5a, so that the length of the second underframe is shortened, as shown in fig. 7-8, the first folded state is reached, at this time, the first wheel assembly 1a is folded between the second wheel assemblies 1b on the left side and the right side, and preferably, the shaft axis of the second wheel assembly 1b extends in the left and right directions along the axis, and the second wheel assembly 1a is convenient to store in the first underframe, the whole stroller is convenient to store in the first folded state, the storage state is convenient to store the first underframe, the first wheel assembly 1a is convenient to store in the left and right direction, the second folded state is convenient to store the whole stroller, the trolley is convenient to store in the left and the second folded state, and the second wheel assembly 1a is convenient to store in the left and the front and the 2, and the 2 is convenient to store in the left and the front and the 2.
Conversely, when the frame is shifted from the first folded state to the unfolded state, the driving rod 12 drives the lower rod 5b to slide downward relative to the upper rod 5a, so that the length of the second chassis is extended.
Example 2
As shown in fig. 12-20, the difference between the present embodiment and embodiment 1 is that the connecting member 11 is a connecting rod, the connecting member 11 extends in the up-down direction in the unfolded state of the frame, the upper portion of the connecting member 11 is rotatably connected with the lower portion of the stay 7 through the fourth shaft 44, and the fourth shaft 44 is located below the first shaft 41 in the unfolded state of the frame, and the lower portion of the connecting member 11 is rotatably connected with the second connecting rod 10;
When the frame of the stroller is converted from the unfolded state to the first folded state, the push rod 8 is pressed downwards, the push rod 8 drives the side rod 6 to rotate backwards and downwards around a rotating connection point with the upper end part of the upper rod 5a, the push rod 8 drives the supporting rod 7 to rotate backwards and downwards around the first shaft 41, the supporting rod 7 drives the connecting piece 11 to rotate forwards and downwards around the fourth shaft 44, the second underframe is closed towards the first underframe 4, the first connecting rod 9, the second connecting rod 10, the connecting piece 11 and the driving rod 12 are driven to be closed mutually, the driving rod 12 drives the lower rod 5b to slide upwards relative to the upper rod 5a, the length of the second underframe is shortened, and the first folded state is reached as shown in fig. 16-17.
Example 3
As shown in fig. 21 to 24, the main difference between this embodiment and embodiment 1 is the difference in the driving mechanism and the difference in the connection member 11.
Specifically, the connecting piece 11 in this embodiment is a sliding pin, the second connecting rod 10 is provided with a sliding groove portion that is matched with the sliding pin, and the sliding groove portion extends in the front-rear direction in the unfolded state of the frame, so that the connecting piece 11 is slidably connected with the second connecting rod 10 in the front-rear direction, and the sliding pin is rotationally connected or fixedly connected with the stay bar 7.
The driving mechanism is a driving rod 12, the driving rod 12 extends along the front-back direction in the unfolding state of the frame, the rear end part of the driving rod 12 is rotationally connected with the lower rod 5b, the front end part of the driving rod 12 is rotationally connected with the lower part of the supporting rod 7 or the connecting piece 11 below the first shaft 41 in the unfolding state of the frame, the front end part of the driving rod 12 is rotationally connected with the lower part of the supporting rod 7 around the connecting piece 11, namely a sliding pin in the embodiment
Example 4
As shown in fig. 25 to 26, the main difference between the present embodiment and embodiment 1 is that the driving mechanism is specifically a driving lever 12, the driving lever 12 extends in the front-rear direction in the unfolded state of the vehicle frame, the rear end portion of the driving lever 12 is rotatably connected to the lower lever 5b, the front end portion of the driving lever 12 is rotatably connected to the lower portion of the stay 7, and the rotational connection point of the driving lever 12 and the stay 7 is located below the fourth shaft 44 in the unfolded state of the vehicle frame.
Example 5
As shown in fig. 27, the main difference between this embodiment and embodiment 1 is that the driving mechanism is specifically a driving lever 12, the driving lever 12 extends in the front-rear direction in the unfolded state of the frame, the rear end portion of the driving lever 12 is rotatably connected to the lower lever 5b, the front end portion of the driving lever 12 is rotatably connected to the lower portion of the stay 7, and the rotational connection point of the driving lever 12 and the stay 7 is located above the fourth shaft 44 in the unfolded state of the frame.
Example 6
As shown in fig. 28, the main difference between this embodiment and embodiment 1 is that the driving mechanism is an elastic member 14 provided between the upper rod 5a and the lower rod 5b, and the elastic member 14 is used to provide an elastic force required for sliding the lower rod 5b downward relative to the upper rod 5a, and the upper rod 5a is slidably inserted into the lower rod 5b or the lower rod 5b is slidably inserted into the upper rod 5a, and the lower rod 5b is slidably inserted into the upper rod 5a in this embodiment.
Example 7
As shown in fig. 29 to 32, the main difference between this embodiment and embodiment 1 is that the first chassis extends obliquely from rear to front and upward in the unfolded state of the frame, the second chassis extends obliquely from front to rear and upward in the unfolded state of the frame, the first wheel assembly 1a is a rear wheel assembly, and the second wheel assembly 1b is a front wheel assembly.
Correspondingly, the rear end of the first link 9 is rotatably connected to the lower portion of the first chassis 4 through a second shaft 42, the rear end of the second link 10 is rotatably connected to the first link 9 through a third shaft 43, the front end of the second link 10 is rotatably connected to the upper link 5a, the front end of the driving link 12 is rotatably connected to the lower link 5b through a sixth shaft 46, and the rear end of the driving link 12 is rotatably connected to the first link 9 through a fifth shaft 45.
When the frame of the baby stroller is converted from the unfolding state to the first folding state, the push rod 8 is pressed downwards, the push rod 8 drives the side rod 6 to rotate forwards and downwards around a rotating connecting point with the upper end part of the upper rod 5a, the push rod 8 drives the supporting rod 7 to rotate forwards and downwards around the first shaft 41 and to draw close to the second underframe, the push rod 8 drives the connecting piece 11 to slide forwards and backwards on the second connecting rod 10, the second underframe draws close to the first underframe 4, the first connecting rod 9, the second connecting rod 10 and the driving rod 12 are driven to draw close to each other, and the driving rod 12 drives the lower rod 5b to slide upwards relative to the upper rod 5a, so that the length of the second underframe is shortened.
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 (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010073256.0A CN111152827B (en) | 2020-01-22 | 2020-01-22 | Child cart |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010073256.0A CN111152827B (en) | 2020-01-22 | 2020-01-22 | Child cart |
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| CN111152827A CN111152827A (en) | 2020-05-15 |
| CN111152827B true CN111152827B (en) | 2024-11-29 |
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| CN202010073256.0A Active CN111152827B (en) | 2020-01-22 | 2020-01-22 | Child cart |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753115B (en) * | 2020-01-22 | 2023-01-31 | 好孩子儿童用品有限公司 | Children's barrow |
| CN117068251A (en) * | 2023-08-07 | 2023-11-17 | 好孩子儿童用品有限公司 | Barrows |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211995808U (en) * | 2020-01-22 | 2020-11-24 | 好孩子儿童用品有限公司 | a children's stroller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202827677U (en) * | 2012-09-19 | 2013-03-27 | 昆山威凯儿童用品有限公司 | Folding baby stroller |
| CN103507846B (en) * | 2013-09-05 | 2016-04-13 | 好孩子儿童用品有限公司 | Children trolley |
| CN109515507B (en) * | 2017-09-19 | 2024-04-09 | 珠海阳光儿童用品有限公司 | Child cart frame and child cart |
| CN108773408B (en) * | 2018-07-02 | 2024-08-27 | 好孩子儿童用品有限公司 | Child cart |
| CN110481621B (en) * | 2019-07-19 | 2024-06-04 | 好孩子儿童用品有限公司 | Child cart |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211995808U (en) * | 2020-01-22 | 2020-11-24 | 好孩子儿童用品有限公司 | a children's stroller |
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