WO2021147178A1 - 一种儿童推车 - Google Patents

一种儿童推车 Download PDF

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Publication number
WO2021147178A1
WO2021147178A1 PCT/CN2020/083674 CN2020083674W WO2021147178A1 WO 2021147178 A1 WO2021147178 A1 WO 2021147178A1 CN 2020083674 W CN2020083674 W CN 2020083674W WO 2021147178 A1 WO2021147178 A1 WO 2021147178A1
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WO
WIPO (PCT)
Prior art keywords
axis
rod
frame
crossbar
shaft
Prior art date
Application number
PCT/CN2020/083674
Other languages
English (en)
French (fr)
Inventor
马福生
石平中
Original Assignee
好孩子儿童用品有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 好孩子儿童用品有限公司 filed Critical 好孩子儿童用品有限公司
Priority to KR1020227027352A priority Critical patent/KR20220124240A/ko
Priority to JP2022544679A priority patent/JP2023512977A/ja
Priority to EP20915733.8A priority patent/EP4095014A4/en
Publication of WO2021147178A1 publication Critical patent/WO2021147178A1/zh
Priority to US17/813,913 priority patent/US20220348248A1/en

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Classifications

    • 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
    • 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
    • B62B7/062—Coupling unit between front wheels, rear wheels and handle
    • 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
    • B62B7/064—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg
    • 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
    • B62B7/064—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg
    • B62B7/066—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg the handle bar moves in parallel relation during folding
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/80—Other vehicles not covered by groups B60Y2200/10 - B60Y2200/60
    • B60Y2200/83—Perambulators; Buggies; Strollers
    • 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
    • B62B7/068—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by sliding a bushing along a rod, e.g. like folding means of an umbrella

Definitions

  • the invention relates to the field of children's products, in particular to a child stroller.
  • the strollers are often foldable.
  • the number of rods in the cart frame is different, and the connection positions between the rods are different, so that the folding principle and the folding method are different, and the folding effect is also different.
  • the length of the front bracket or the rear bracket of the folded cart in the prior art is too long, which will cause the overall volume of the cart to be relatively large.
  • the purpose of the present invention is to overcome the shortcomings in the prior art and provide an improved stroller.
  • the front bracket or the rear bracket of the stroller is retractable, so that the folded stroller has a smaller volume.
  • a child stroller comprising a frame in an unfolded state and a first folded state, a first wheel assembly, a second wheel assembly, and is used to lock the frame
  • the locking mechanism in the unfolded state, and the seat post provided on the frame the frame includes a left bracket located on the left side, a right bracket located on the right side, and connected to the
  • the connecting frame between the left side support and the right side support, both the left side support and the right side support include: a first underframe, and in the unfolded state of the frame, the first underframe Extending from front to back and inclined upwards, the lower end of the first underframe is connected to the first wheel assembly, the first wheel assembly is a front wheel assembly; the second underframe is in the unfolded state of the frame ,
  • the second bottom frame extends from the back to the front and upwards obliquely, the second bottom frame is a telescopic rod assembly, and the second bottom frame includes
  • the lower rod is slidably connected up and down, the upper rod is slidably inserted in the lower rod or the lower rod is slidably inserted in the upper rod, and the lower end of the lower rod is slidably inserted into the upper rod.
  • the second wheel assembly is connected, the second wheel assembly is a rear wheel assembly; a side rod, the upper end of the first chassis, the upper end of the upper rod, and the lower end of the side rod.
  • the third component is rotatably connected with one of the aforementioned two components; a support rod, the support rod and the upper rod are rotatably connected by a first shaft; a push rod, the push rod The lower part of the rod is respectively rotatably connected with the upper end of the side rod and the upper end of the strut; the connecting rod, the connecting rod extends in the front-rear direction in the unfolded state of the frame, and the connecting rod One end is rotatably connected with the lower part of the first chassis through a second shaft, the connecting rod is also rotatably connected with the strut through a third shaft, and the third shaft is in the unfolded state of the frame Located below the first shaft; the stroller further includes a device for driving the lower rod to slide downward relative to the upper rod when the frame is converted from the first folded state to the unfolded state
  • the drive mechanism of the drive mechanism is an elastic member disposed between the upper rod and the lower rod, and the elastic member is used to provide
  • the connecting frame includes: a first crossbar, one end of the first crossbar is connected with the first chassis of the left side support through a one-axis rotation, and the other end of the first crossbar is connected to the The first bottom frame of the right side support is connected by two-axis rotation; the second crossbar, one end of the second crossbar is connected with the upper rod of the left side support through a two-axis rotation, and the second The other end of the crossbar is connected to the upper rod of the right side support through a two-axis rotation; the upper crossbar, one end of the upper crossbar is connected to the push rod of the left side support through a three-axis rotation, The other end of the upper crossbar is connected with the push rod of the right side support through two or three-axis rotation; a connecting rod crossbar, one end of the connecting rod crossbar passes through the strut of the left side support A four-axis rotation connection, the other end of the connecting rod crossbar is connected to the strut of the right side bracket through a two-four-axi
  • the purpose of the present invention is to provide another stroller.
  • a child stroller comprising a frame in an unfolded state and a first folded state, a first wheel assembly, a second wheel assembly, and is used to lock the frame
  • the locking mechanism in the unfolded state, and the seat post provided on the frame the frame includes a left bracket located on the left side, a right bracket located on the right side, and connected to the
  • the connecting frame between the left side support and the right side support, both the left side support and the right side support include: a first underframe, and in the unfolded state of the frame, the first underframe Extending from front to back and inclined upwards, the lower end of the first underframe is connected to the first wheel assembly, the first wheel assembly is a front wheel assembly; the second underframe is in the unfolded state of the frame ,
  • the second bottom frame extends from the back to the front and upwards obliquely, the second bottom frame is a telescopic rod assembly, and the second bottom frame includes
  • the lower rod is slidably connected up and down, the lower end of the lower rod is connected to the second wheel assembly, the second wheel assembly is a rear wheel assembly; a side rod, the upper end of the first chassis, the The upper end of the upper rod and the lower end of the side rod are rotatably connected to two of the three parts, and the third part is rotatably connected to one of the aforementioned two parts; struts, the struts are connected to the The upper rod is rotatably connected by a first shaft; a push rod, the lower part of the push rod is rotatably connected with the upper end of the side rod and the upper end of the support rod; the connecting rod, the connecting rod is in the The frame extends in the front-rear direction in the unfolded state, and one end of the connecting rod is rotatably connected with the lower part of the first chassis through a second axis, and the connecting rod is also rotated with the strut through a third axis Connected, and the third shaft is located below the
  • the connecting frame includes: a first crossbar, one end of the first crossbar is connected with the first chassis of the left side support through a one-axis rotation, and the other end of the first crossbar is connected to the The first bottom frame of the right side support is connected by two-axis rotation; the second crossbar, one end of the second crossbar is connected with the upper rod of the left side support through a two-axis rotation, and the second The other end of the crossbar is connected to the upper rod of the right side support through a two-axis rotation; the upper crossbar, one end of the upper crossbar is connected to the push rod of the left side support through a three-axis rotation, The other end of the upper crossbar is connected with the push rod of the right side support through two or three-axis rotation; a connecting rod crossbar, one end of the connecting rod crossbar passes through the strut of the left side support A four-axis rotation connection, the other end of the connecting rod crossbar is connected to the strut of the right side bracket through a two-four-axi
  • the purpose of the present invention is to provide another stroller.
  • a child stroller comprising a frame in an unfolded state and a first folded state, a first wheel assembly, a second wheel assembly, and is used to lock the frame
  • the locking mechanism in the unfolded state, and the seat post provided on the frame the frame includes a left bracket located on the left side, a right bracket located on the right side, and connected to the
  • the connecting frame between the left side support and the right side support, both the left side support and the right side support include: a first underframe, and in the unfolded state of the frame, the first underframe Extending from front to back and inclined upwards, the lower end of the first underframe is connected to the first wheel assembly, the first wheel assembly is a front wheel assembly; the second underframe is in the unfolded state of the frame ,
  • the second bottom frame extends from the back to the front and upwards obliquely, the second bottom frame is a telescopic rod assembly, and the second bottom frame includes
  • the lower rod is slidably connected up and down, the lower end of the lower rod is connected to the second wheel assembly, the second wheel assembly is a rear wheel assembly; a side rod, the upper end of the first chassis, the The upper end of the upper rod and the lower end of the side rod are rotatably connected to two of the three parts, and the third part is rotatably connected to one of the aforementioned two parts; struts, the struts are connected to the The upper rod is rotatably connected by a first shaft; a push rod, the lower part of the push rod is rotatably connected with the upper end of the side rod and the upper end of the support rod; the connecting rod, the connecting rod is in the The frame extends in the front-rear direction in the unfolded state, and one end of the connecting rod is rotatably connected with the lower part of the first chassis through a second axis, and the connecting rod is also rotated with the strut through a third axis Connected, and the third shaft is located below the
  • the connecting frame includes: a first crossbar, one end of the first crossbar is connected with the first chassis of the left side support through a one-axis rotation, and the other end of the first crossbar is connected to the The first bottom frame of the right side support is connected by two-axis rotation; the second crossbar, one end of the second crossbar is connected with the upper rod of the left side support through a two-axis rotation, and the second The other end of the cross bar is connected to the upper rod of the right side support through a two-two-axis rotation; the upper cross bar, one end of the upper cross bar is connected to the push rod of the left side support through a three-axis rotation, The other end of the upper crossbar is connected with the push rod of the right side support through two or three-axis rotation; a connecting rod crossbar, one end of the connecting rod crossbar passes through the strut of the left side support A four-axis rotation connection, the other end of the connecting rod crossbar is connected to the strut of the right side bracket through a two-four
  • the purpose of the present invention is to provide another stroller.
  • a child stroller comprising a frame in an unfolded state and a first folded state, a first wheel assembly, a second wheel assembly, and is used to lock the frame
  • the locking mechanism in the unfolded state, and the seat post provided on the frame the frame includes a left bracket located on the left side, a right bracket located on the right side, and connected to the
  • the connecting frame between the left side support and the right side support, both the left side support and the right side support include: a first underframe, the lower end of the first underframe and the first wheel assembly Connection; a second chassis, the second chassis is a telescopic rod assembly, the second chassis includes an upper rod and a lower rod arranged under the upper rod and slidably connected with the upper rod up and down, the The lower end of the lower rod is connected to the second wheel assembly; the side rod, the upper end of the first chassis, the upper end of the upper rod, and the lower end of the side rod, two
  • the second chassis When the first chassis extends from front to rear and tilts upwards, the second chassis extends from rear to front.
  • the first wheel assembly When the stroller is tilted upwards, the first wheel assembly is the front wheel, and the second wheel assembly is the rear wheel. The user stands on the side close to the second chassis and pushes the stroller forward.
  • the second chassis extends from front to rear and tilts upwards, the first chassis extends from rear to front and tilts upwards, the second wheel assembly is the front wheel, the first wheel assembly is the rear wheel, and the user stands close to the first chassis Push the stroller forward from the back.
  • the third shaft is located below the first shaft.
  • the third shaft is located above the first shaft in the unfolded state of the frame.
  • first wheel assembly is a front wheel assembly
  • second wheel assembly is a rear wheel assembly
  • the child stroller further includes a device for driving the lower rod to slide upward relative to the upper rod when the frame is converted from the unfolded state to the first folded state, or/and when the When the frame is converted from the first folded state to the unfolded state, a driving mechanism for driving the lower rod to slide downward relative to the upper rod.
  • the upper rod is slidably inserted into the lower rod or the lower rod is slidably inserted into the upper rod, and the driving mechanism is arranged between the upper rod and the upper rod.
  • An elastic member between the lower rods, the elastic member is used to provide the required elastic force for the lower rod to slide downward relative to the upper rod.
  • 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 of the driving rod is rotatably connected with the lower rod, and the other of the driving rod One end is rotatably connected with the connecting rod through a fourth shaft, and the third shaft is located between the second shaft and the fourth shaft.
  • the driving mechanism is a driving rod, one end of the driving rod is rotatably connected with the lower rod, the other end of the driving rod is rotatably connected with the strut through a fifth axis, and the In the unfolded state of the frame, the fifth shaft is located below the first shaft.
  • the driving rod is rotatably connected with the lower rod through a sixth shaft
  • the upper rod is provided with a guide groove extending along the extension direction of the upper rod
  • the sixth shaft is slidably arranged on the guide Slot.
  • the connecting frame includes: a first crossbar, one end of the first crossbar is connected to the first chassis of the left side support through a one-axis rotation, and the other end of the first crossbar Part and the first base frame of the right side bracket are connected by two-axis rotation; a second cross bar, one end of the second cross bar is connected with the second base frame of the left side bracket through a two-axis rotation , The other end of the second crossbar is connected to the second chassis of the right side support through two-two-axis rotation; an upper crossbar, one end of the upper crossbar is connected to the push rod of the left side support Through a three-axis rotation connection, the other end of the upper crossbar is connected with the push rod of the right side bracket through two or three-axis rotation; the frame also has a second folded state, when the frame is moved by When the first folded state is converted to the second folded state, the left side bracket is folded and turned around the one-axis, the one-two-axis, and the one-three-axis relative to
  • one end of the second crossbar is connected with the upper rod of the left side support through a two-axis rotation
  • the other end of the second crossbar is connected with the upper rod of the right side support through two or two shafts. Shaft rotation connection.
  • the axis of the one axis, the axis of the one axis and the axis of the one axis and the axis of the third axis Parallel, the axis of the two-axis, the axis of the two-axis, and the axis of the second-third axis are parallel; or the axis of the one-axis,
  • the axis of the one-two axis coincides with the axis of the one-three axis, the axis of the two axis, the axis of the second axis and the axis of the second axis coincide with the axis of the second axis.
  • the axis lines of the three axes coincide.
  • the connecting frame further includes a connecting rod crossbar, one end of the connecting rod crossbar is connected with the strut of the left side support through a four-axis rotation, and the other end of the connecting rod crossbar
  • the support rod of the right side bracket is connected by two or four axis rotation.
  • the axis of the one axis and the axis of the one axis are parallel or coincide with each other, and the axis line of the second axis, the axis line of the second axis and the second axis
  • the axis of the axis, the axis of the second and third axis are parallel to or coincide with the axis of the second and fourth axis.
  • the present invention has the following advantages compared with the prior art: the child stroller of the present invention is easy to fold and unfold, and it is convenient for consumers to use, and the second chassis is provided as a telescopic rod assembly. , Making the folded structure more compact.
  • Figure 1 is a side cross-sectional view of the frame of the stroller of the present invention in an unfolded state (Embodiment 1);
  • Figure 2 is a perspective view of the frame of the child stroller of the present invention in an unfolded state (Embodiment 1);
  • Figure 3 is a side view of the frame of the child stroller of the present invention during the transition between the unfolded state and the first folded state (Embodiment 1);
  • Figure 4 is a perspective view of the frame of the child stroller of the present invention during the transition between the unfolded state and the first folded state (Embodiment 1);
  • Figure 5 is a perspective view of the frame of the child stroller of the present invention in the first folded state (Embodiment 1);
  • Figure 6 is another perspective view of the frame of the child stroller of the present invention in the first folded state (Embodiment 1);
  • Figure 7 is a perspective view of the frame of the child stroller of the present invention in the second folded state (Embodiment 1);
  • Figure 8 is a perspective view of the frame of the child stroller of the present invention in the second folded state from another perspective (Embodiment 1);
  • Figure 9 is a side view of the frame of the child stroller of the present invention in an unfolded state (Embodiment 2);
  • Figure 10 is a perspective view of the frame of the child stroller of the present invention in an unfolded state (Embodiment 2);
  • Figure 11 is a side view of the frame of the stroller of the present invention during the transition between the unfolded state and the first folded state (Embodiment 2);
  • Figure 12 is a perspective view of the frame of the child stroller of the present invention in the first folded state (Embodiment 2);
  • Figure 13 is a front view of the frame of the child stroller of the present invention in the second folded state (Embodiment 2);
  • Figure 14 is a side view of the frame of the child stroller of the present invention in an unfolded state (Embodiment 3);
  • Figure 15 is a perspective view of the frame of the child stroller of the present invention in an unfolded state (Embodiment 3);
  • Figure 16 is a side cross-sectional view of the frame of the child stroller of the present invention in an unfolded state (Embodiment 4);
  • Figure 17 is a perspective view of the frame of the child stroller of the present invention in an unfolded state (Embodiment 4);
  • Figure 18 is a side view of the frame of the child stroller of the present invention during the transition between the unfolded state and the first folded state (Embodiment 4);
  • Figure 19 is a perspective view of the frame of the child stroller of the present invention during the transition between the unfolded state and the first folded state (Embodiment 4);
  • Figure 20 is a side view of the frame of the child stroller of the present invention in an unfolded state (embodiment 5);
  • Fig. 21 is a perspective view of the frame of the stroller of the present invention in an unfolded state (Embodiment 5).
  • First chassis 5a, upper rod; 5aa, upper rod body; 5ab, extension rod; 5b, lower rod; 6, side rod; 7, support rod; 8aa, upper push rod body; 8ab, Grip rod; 8b, push-down rod; 9, connecting rod; 10, driving rod; 11, elastic member; 12, guide groove; 13, sitting rod; 14, unlocking button 41, first shaft; 42, second shaft ; 43, the third axis; 44, the fourth axis; 45, the fifth axis; 46, the sixth axis; 51, the second and the first axis; 52, the second and second axis; 53, the second and third axis; 54, the second and fourth axis; 61 , One axis; 62, one two axis; 63, one three axis; 64, one four axis.
  • the stroller in this embodiment includes a frame in an unfolded state and a first folded state, a first wheel assembly 1a, a second wheel assembly 1b, and is used to lock the frame in the unfolded state.
  • a locking mechanism (not shown in the figure) and a seat post 13 provided on the frame.
  • the frame includes a left side bracket 2b on the left side, a right side bracket 2a on the right side, and
  • the connecting frame connected between the left side support 2b and the right side support 2a, both the left side support 2b and the right side support 2a include:
  • the first underframe 4, the lower end of the first underframe 4 is connected to the first wheel assembly 1a;
  • the second chassis is a telescopic rod assembly
  • the second chassis includes an upper rod 5a and a lower rod 5b arranged under the upper rod 5a and slidably connected with the upper rod 5a, the upper rod 5a is slidably inserted In the lower rod 5b or the lower rod 5b is slidably inserted into the upper rod 5a, the lower end of the lower rod 5b is connected to the second wheel assembly 1b, in this embodiment, the first underframe 4 is in the unfolded state of the frame It extends from front to back and tilts upwards, the second chassis extends from back to front and tilts 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;
  • the side rod 6, the upper end of the first chassis 4, the upper end of the upper rod 5a, and the lower end of the side rod 6 are rotatably connected to two of the three parts, and the third part is connected to the aforementioned two parts A rotary connection.
  • the upper end of the first chassis 4 is rotatably connected with the upper end of the upper rod 5a
  • the lower end of the side rod 6 is rotatably connected with the upper end of the upper rod 5a
  • the upper rod is rotatably connected with the upper end of the upper rod 5a.
  • 5a specifically includes an upper rod body 5aa and an extension rod 5ab fixedly connected to the upper end of the upper rod body.
  • Both ends of the extension rod 5ab are rotatably connected with the upper end of the first chassis 4 and the lower end of the side rod 6, and are connected to the upper end of the first chassis 4 and the lower end of the side rod 6 respectively.
  • the extension rod 5ab extends substantially in the horizontal direction;
  • the support rod 7, the support rod 7 and the upper rod 5a are rotatably connected by the first shaft 41;
  • Push rod the lower part of the push rod is respectively rotatably connected with the upper end of the side rod 6 and the upper end of the support rod 7.
  • the push rod is a telescopic rod assembly, which specifically includes an upper push rod and a sliding connection with the lower part of the upper push rod
  • the lower push rod 8b, the upper push rod includes an upper push rod body 8aa and a grip rod 8ab fixedly arranged at the upper end of the upper push rod body 8aa, one end of the grip rod 8ab is provided with an unlock button 14 for unlocking the upper push rod
  • the connecting rod 9 extends in the front-rear direction in the unfolded state of the frame, and the front end of the connecting rod 9 and the lower part of the first chassis 4 are rotatably connected by the second shaft 42, and the rear end of the connecting rod 9 is connected with
  • the lower end of the strut 7 is rotatably connected by the third shaft 43, and the third shaft 43 is located below the first shaft 41 in the unfolded state of the frame.
  • the stroller also includes a mechanism for driving the lower rod 5b to slide upward relative to the upper rod 5a when the frame is transformed from the unfolded state to the first folded state, or/and for driving when the frame is transformed from the first folded state to the unfolded state
  • the driving mechanism is an elastic member 11 arranged between the upper rod 5a and the lower rod 5b. The elastic member 11 is used to provide the required elastic force for the lower rod 5b to slide downward relative to the upper rod 5a. In the state, the length of the second underframe is greater than the length of the second underframe when the frame is in the first folded state.
  • a locking device (not shown in the figure) is provided between the upper rod 5a and the lower rod 5b, Used to relatively lock the position between the upper rod 5a and the lower rod 5b, that is, the locking device is used to lock the second chassis in the extended state in the unfolded state of the frame and the first folded state in the frame The shortened state.
  • connection frame includes:
  • the first cross-bar 3a, one end of the first cross-bar 3a and the first chassis 4 of the left side bracket 2b are rotatably connected by a shaft 61, and the other end of the first cross-bar 3a is connected to the first bottom frame of the right side bracket 2a.
  • the underframe 4 is rotatably connected by two shafts 51;
  • the second crossbar 3b, one end of the second crossbar 3b and the upper rod 5a of the second chassis of the left side support 2b are rotatably connected by a two-axis 62, and the other end of the second crossbar 3b is connected to the right side support 2a.
  • the upper rod 5a of the second undercarriage is rotatably connected by two two shafts 52;
  • the upper crossbar 3c, one end of the upper crossbar 3c and the push rod of the left side support 2b are rotationally connected by a three-axis 63, and the other end of the upper crossbar 3c and the push rod of the right side support 2a are rotated by a second and third shaft 53 connect;
  • the frame also has a second folded state.
  • the left side bracket 2b relative to the connecting frame is folded and turned around a first axis 61, a second axis 62, and a third axis 63 respectively.
  • the right side support 2a is folded and turned around the second axis 51, the second second axis 52, and the second third axis 53 relative to the connecting frame.
  • the axis of the first axis 61, the axis of the first axis 62 and the axis of the third axis 63 are parallel, and the axis of the second axis
  • the axis line of 51, the axis line of the second axis 52 and the axis line of the second axis 53 are parallel; preferably, the axis line of the first axis 61, the axis line of the second axis 62 and the third axis 63
  • the axis lines of the two-one axis 51 coincide with the axis lines of the two-second axis 52 coincide with the axis lines of the two-third axis 53, so that the left side bracket 2b is in the second folded state of the frame It can be closer to the right side bracket 2a relative to the connecting frame.
  • the connecting frame further includes a connecting rod crossbar 3d, one end of the connecting rod crossbar 3d and the strut 7 of the left side bracket 2b are rotatably connected by a four-axis 64, connecting The other end of the crossbar 3d and the support rod 7 of the right side bracket 2a are rotatably connected by two or four shafts 54, as shown in Figures 7-8.
  • the axis of the one shaft 61 Line, the axis of the first and second axis 62, the axis of the third axis 63 and the axis of the fourth axis 64 are parallel or coincident, the corresponding axis of the second axis 51, the axis of the second axis 52
  • the axis line, the axis line of the second and third axis 53 and the axis line of the second and fourth axis 54 are parallel or coincident with each other.
  • the second underframe is set as a telescopic rod assembly, so that in the unfolded state of the frame, the length of the second underframe is extended, which is conducive to the spacious arrangement of the bottom of the frame A basket for placing sundries, and the height of the sitting post 13 on the frame from the horizontal plane where the stroller is placed is increased accordingly.
  • a clamp is formed between the first base frame 4 and the side post 6
  • the angle ⁇ , the angle range of the included angle ⁇ is 135 degrees to 180 degrees, and the preferred angle of the included angle ⁇ is 160 degrees.
  • 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, and the first wheel assembly 1a and the second wheel assembly 1b are both configured as single wheels, such as As shown in Figures 5-6, in the first folded state of the frame, the first wheel assembly 1a is folded inside the second wheel assembly 1b. If both the first wheel assembly 1b and the second wheel assembly 1b are configured as double wheels , It will increase the folding volume of the stroller in the first folding state, and the arrangement of the single wheel makes the folding volume of the stroller in the first folding state smaller, which is also conducive to further folding into the second folding state.
  • the locking mechanism in this embodiment includes a locking device for relatively locking the upper push rod and the lower push rod 8b, a locking device for relatively locking the push rod and the strut 7, and a locking device for relatively locking the upper rod 5a and the lower rod. 5b Relatively locked locking device.
  • the support rod 7 drives the connecting rod 9 to Under the action of the connecting rod 9, the first chassis 4 moves closer to the second chassis, and the locking device between the upper rod 5a and the lower rod 5b is unlocked (not shown in the figure), and the lower rod 5b is pushed to make the lower rod 5b Slide upwards relative to the upper rod 5a, and then lock the second underframe in the shortened state, as shown in Figure 5-6, to reach the first folded state.
  • the first wheel assembly 1a is folded in the second wheel assembly on the left and right sides. 1b, and the axis line of the axle of the second wheel assembly 1b extends in the left and right direction.
  • the handle bars 8ab of the left side bracket 2b and the right side bracket 2a respectively extend horizontally in the front and rear directions and are gathered in the entire frame
  • the left and right sides of the left and right sides, the front end of the grip bar 8ab does not exceed the front end of the extension bar 5ab
  • the lengths of the first cross bar 3a, the second cross bar 3b, the upper cross bar 3c, and the connecting rod cross bar 3d in the left and right directions are equal
  • Twice the length of the entire frame in the front and rear direction is less than or equal to the length of the first crossbar 3a, the second crossbar 3b, the upper crossbar 3c, or the connecting rod crossbar 3d; the frame moves from the first folded state to the second
  • the left side bracket 2b and the right side bracket 2a are turned 90 degrees inward relative to the connecting frame, as shown in Figure 7-8, to reach the second folded state.
  • the axle of the second wheel assembly 1b The axis line extends in the front-rear direction, and the rearmost end of the first wheel assembly 1a does not exceed the rearmost ends of the four rods of the first crossbar 3a, the second crossbar 3b, the upper crossbar 3c, or the connecting rod crossbar 3d, The foremost end of the second wheel assembly 1b does not exceed the foremost end of the grip rod 8ab at this time.
  • the difference between this embodiment and Embodiment 1 is mainly the difference in the drive mechanism, and due to the difference in the drive mechanism in this embodiment, the locking mechanism in this embodiment no longer includes A locking device in which the upper rod 5a and the lower rod 5b are relatively locked.
  • the driving mechanism is the driving rod 10.
  • the driving rod 10 extends obliquely from front to back from top to bottom in the unfolded state of the frame.
  • the rear end of the driving rod 10 is rotatably connected with the lower rod 5b, and the front end of the driving rod
  • the part and the strut 7 are rotatably connected by the fifth shaft 45, and in the unfolded state of the frame, the fifth shaft 45 is located below the first shaft 41, specifically the rear end of the driving rod 10 and the rotation connection point of the lower rod 5b
  • the axis line is coaxial with the axis line of the second wheel assembly 1b.
  • the support rod 7 includes a body rod and an extension rod extending in the up and down direction when the frame is unfolded.
  • the upper end of the extension rod is fixedly connected to the body rod and extends
  • the lower end of the rod and the driving rod 10 are rotatably connected by a fifth shaft 45, and the fifth shaft 45 is located below and behind the third shaft 43 in the unfolded state of the frame.
  • the push rod When the frame of the stroller changes from the unfolded state to the first folded state, the push rod is pushed down, and the push rod drives the side rod 6 to rotate backward and downward around the rotation connection point with the upper end of the upper rod 5a. Drive the support rod 7 to rotate backwards and downwards around the first shaft 41 and move closer to the second chassis. The support rod 7 drives the connecting rod 9 and the driving rod 10, and the first chassis 4 moves to the second under the action of the connecting rod 9.
  • the drive rod 10 drives the lower bar 5b to slide upward relative to the upper bar 5a, so that the length of the second underframe is shortened to a shortened state, reaching the first folded state; when the frame is converted from the first folded state to the second folded state Then, the left side bracket 2b and the right side bracket 2a are turned 90 degrees inward relative to the connecting frame to reach the second folded state.
  • the driving rod 10 drives the lower rod 5b to slide downward relative to the upper rod 5a, so that the length of the second underframe is extended to reach the extended state of the second underframe.
  • the difference between this embodiment and the first embodiment is mainly the difference in the driving mechanism.
  • the driving mechanism in this embodiment is the driving rod 10, which extends in the front-rear direction in the unfolded state of the frame, the rear end of the driving rod 10 is rotatably connected with the lower rod 5b, and the front end of the driving rod 10 is connected to the connecting rod. 9 is rotatably connected by a fourth shaft 44, and the third shaft 43 is located between the second shaft 42 and the fourth shaft 44.
  • the driving rod 10 is rotatably connected to the upper part of the lower rod 5b through a sixth shaft 46, the upper rod 5a is provided with a guide groove 12 extending along the extending direction of the upper rod 5a, and the sixth shaft 46 is slidably arranged in the guide groove 12 .
  • the push rod When the frame of the stroller changes from the unfolded state to the first folded state, the push rod is pushed down, and the push rod drives the side rod 6 to rotate backward and downward around the rotation connection point with the upper end of the upper rod 5a.
  • Drive the support rod 7 to rotate backwards and downwards around the first shaft 41 and move closer to the second chassis.
  • the support rod 7 drives the connecting rod 9, and the first chassis 4 moves closer to the second chassis under the action of the connecting rod 9.
  • the connecting rod 9 drives the driving rod 10, and the sixth shaft 46 slides from bottom to top in the guide groove 12 of the upper rod 5a, so that the lower rod 5b slides upward relative to the upper rod 5a, so that the length of the second chassis is shortened to a shortened state.
  • the first folding state is reached; when the frame is converted from the first folding state to the second folding state, the left side bracket 2b and the right side bracket 2a are turned 90 degrees inward relative to the connecting frame to reach the second folded state.
  • the drive rod 10 causes the sixth shaft 46 to slide from top to bottom in the guide groove 12, so that the lower rod 5b slides downward relative to the upper rod 5a, so that the first The length of the second base frame is extended to reach the extended state of the second base frame.
  • the first underframe extends from back to forward and upward in the unfolded state of the frame, and the second underframe is on the frame.
  • the first wheel assembly 1a is a rear wheel assembly
  • the second wheel assembly 1b is a front wheel assembly.
  • the push rod extends obliquely upward from front to back.
  • the rear end of the connecting rod 9 and the lower part of the first chassis 4 are rotatably connected by the second shaft 42, and the front end of the connecting rod 9 and the lower end of the support rod 7 are rotatably connected by the third shaft 43,
  • the push rod When the frame of the stroller changes from the unfolded state to the first folded state, the push rod is pressed down, and the push rod drives the side rod 6 to rotate forward and downward around the rotation connection point with the upper end of the upper rod 5a.
  • the support rod 7 is driven to rotate forward and downward around the first shaft 41 and move closer to the second chassis.
  • the support rod 7 drives the connecting rod 9 and the first chassis 4 moves closer to the second chassis under the action of the connecting rod 9.
  • the locking device between the upper rod 5a and the lower rod 5b is unlocked, and the lower rod 5b is pushed so that the lower rod 5b slides upward relative to the upper rod 5a, and then the second chassis is locked in the shortened state to reach the first folded state.
  • the main difference between this embodiment and the second embodiment is that in the unfolded state of the frame, the rotating connection point of the connecting rod 9 and the strut 7 and the third shaft 43 are arranged on the strut 7 and the upper rod.
  • the rotation connection point of 5a is above the first shaft 41.
  • the third shaft 43 can also be set to be on the same horizontal plane as the first shaft 41.
  • the connecting rod 9 is used as the seat rod 13 in this embodiment, and the seat rod 13 additionally provided in the second embodiment is omitted. Specifically, the upper part of the connecting rod 9 is bent backward to form a functional part equivalent to the seat rod 13.

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Abstract

一种儿童推车，包括车架，车架包括左侧支架（2b）、右侧支架（2a），左侧支架（2b）和右侧支架（2a）都包括：第一底架（4）；第二底架，第二底架包括上杆（5a）和与上杆上下滑动连接的下杆（5b）；侧杆（6），第一底架（4）的上端部、上杆（5a）的上端部、以及侧杆（6）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（7），撑杆（7）与上杆（5a）转动连接；推杆，推杆的下部分别与侧杆（6）的上端部和撑杆（7）的上端部转动连接；连杆（9），连杆（9）的一端部与第一底架（4）的下部转动连接，连杆（9）还与撑杆（7）的下端部转动连接。通过可伸缩支架，使折叠后的儿童推车体积较小。

Description

一种儿童推车 技术领域
本发明涉及儿童用品领域，具体涉及一种儿童推车。
背景技术
现有技术中的儿童推车为方便其携带与存放，推车往往是可以折叠的。现有的儿童推车种类繁多，推车车架杆件的数目不同，各杆件之间的连接位置不同，从而折叠原理与折叠方式各不相同，折叠后的效果也不同。同时，现有技术中的推车折叠后的前支架或者后支架长度过长，会造成推车整体的体积较大。
发明内容
本发明的目的是为了克服现有技术中的缺陷，提供一种改进的儿童推车，该儿童推车的前支架或后支架可伸缩，使折叠后的推车体积较小。
为达到上述目的，本发明采用的技术方案是：一种儿童推车，包括具有展开状态和第一折叠状态的车架、第一车轮组件、第二车轮组件、用于将所述车架锁定在所述展开状态下的锁定机构、以及设置在所述车架上的坐杆，所述车架包括位于左侧部的左侧支架、位于右侧部的右侧支架、以及连接于所述左侧支架和所述右侧支架之间的连接架，所述左侧支架和所述右侧支架都包括：第一底架，在所述车架的展开状态下，所述第一底架自前向后并向上倾斜延伸，所述第一底架的下端部与所述第一车轮组件连接，所述第一车轮组件为前轮组件；第二底架，在所述车架的展开状态下，所述第二底架自后向前并向上倾斜延伸，所述第二底架为伸缩杆组件，所述第二底架包括上杆和设置在所述上杆下方并与所述上杆上下滑动连接的下杆，所述上杆可滑动地插设于在所述下杆内或所述下杆可滑动地插设于所述上杆内，所述下杆的下端部与所述第二车轮组件连接，所述第二车轮组件为后轮组件；侧杆，所述第一底架的上端部、所述上杆的上端部、以及所述侧杆的下端部三个部件中的其中两个部件转动连接，第三个部件与前述两个部件中的一个转动连接；撑杆，所述撑杆与所述上杆通过第一轴转动连接；推杆，所述的推杆的下部分别与所述侧杆的上端部和所述撑杆的上端部转动连接；连杆，所述连杆 在所述车架的展开状态下沿前后方向延伸，且所述连杆的一端部与所述第一底架的下部通过第二轴转动连接，所述连杆还与所述撑杆通过第三轴转动连接，且在所述车架的展开状态下所述第三轴位于所述第一轴的下方；所述儿童推车还包括当所述车架由所述第一折叠状态向所述展开状态转换时用于驱动所述下杆相对所述上杆向下滑动的驱动机构，所述驱动机构为设置在所述上杆与所述下杆之间的弹性件，所述弹性件用于提供使所述下杆相对所述上杆向下滑动所需弹性力；
所述连接架包括:第一横杆，所述第一横杆的一端部与所述左侧支架的第一底架通过一一轴转动连接，所述第一横杆的另一端部与所述右侧支架的第一底架通过二一轴转动连接；第二横杆，所述第二横杆的一端部与所述左侧支架的上杆通过一二轴转动连接，所述第二横杆的另一端部与所述右侧支架的上杆通过二二轴转动连接；上横杆，所述上横杆的一端部与所述左侧支架的推杆通过一三轴转动连接，所述上横杆的另一端部与所述右侧支架的推杆通过二三轴转动连接；连杆横杆，所述连杆横杆的一端部与所述的左侧支架的撑杆通过一四轴转动连接，所述连杆横杆的另一端部与所述的右侧支架的撑杆通过二四轴转动连接；所述车架还具有第二折叠状态，当所述车架由所述第一折叠状态向所述第二折叠状态转换时，所述左侧支架相对所述连接架分别绕所述一一轴、所述一二轴、所述一三轴折叠翻转，所述右侧支架相对所述连接架分别绕所述二一轴、所述二二轴、所述二三轴折叠翻转；当所述的车架处于所述第二折叠状态下，所述的一一轴的轴心线，所述的一二轴的轴心线、所述的一三轴的轴心线与所述一四轴的轴心线相平行或重合，所述的二一轴的轴心线、所述的二二轴的轴心线、所述的二三轴的轴心线与所述二四轴的轴心线相平行或重合。
本发明的目的是提供另一种儿童推车。
为达到上述目的，本发明采用的技术方案是：一种儿童推车，包括具有展开状态和第一折叠状态的车架、第一车轮组件、第二车轮组件、用于将所述车架锁定在所述展开状态下的锁定机构、以及设置在所述车架上的坐杆，所述车架包括位于左侧部的左侧支架、位于右侧部的右侧支架、以及连接于所述左侧支架和所述右侧支架之间的连接架，所述左侧支架和所述右侧支架 都包括：第一底架，在所述车架的展开状态下，所述第一底架自前向后并向上倾斜延伸，所述第一底架的下端部与所述第一车轮组件连接，所述第一车轮组件为前轮组件；第二底架，在所述车架的展开状态下，所述第二底架自后向前并向上倾斜延伸，所述第二底架为伸缩杆组件，所述第二底架包括上杆和设置在所述上杆下方并与所述上杆上下滑动连接的下杆，所述下杆的下端部与所述第二车轮组件连接，所述第二车轮组件为后轮组件；侧杆，所述第一底架的上端部、所述上杆的上端部、以及所述侧杆的下端部三个部件中的其中两个部件转动连接，第三个部件与前述两个部件中的一个转动连接；撑杆，所述撑杆与所述上杆通过第一轴转动连接；推杆，所述的推杆的下部分别与所述侧杆的上端部和所述撑杆的上端部转动连接；连杆，所述连杆在所述车架的展开状态下沿前后方向延伸，且所述连杆的一端部与所述第一底架的下部通过第二轴转动连接，所述连杆还与所述撑杆通过第三轴转动连接，且在所述车架的展开状态下所述第三轴位于所述第一轴的下方；所述儿童推车还包括当所述车架由所述展开状态向所述第一折叠状态转换时用于驱动所述下杆相对所述上杆向上滑动和当所述车架由所述第一折叠状态向所述展开状态转换时用于驱动所述下杆相对所述上杆向下滑动的驱动机构，所述驱动机构为驱动杆，所述驱动杆在所述车架的展开状态下沿前后方向延伸，所述驱动杆的一端部与所述下杆通过第六轴转动连接，所述驱动杆的另一端部与所述连杆通过第四轴转动连接，且所述第三轴位于所述第二轴和所述第四轴之间，所述上杆上开设有沿所述上杆的延伸方向延伸的导向槽，所述第六轴滑动设置在所述导向槽中；
所述连接架包括:第一横杆，所述第一横杆的一端部与所述左侧支架的第一底架通过一一轴转动连接，所述第一横杆的另一端部与所述右侧支架的第一底架通过二一轴转动连接；第二横杆，所述第二横杆的一端部与所述左侧支架的上杆通过一二轴转动连接，所述第二横杆的另一端部与所述右侧支架的上杆通过二二轴转动连接；上横杆，所述上横杆的一端部与所述左侧支架的推杆通过一三轴转动连接，所述上横杆的另一端部与所述右侧支架的推杆通过二三轴转动连接；连杆横杆，所述连杆横杆的一端部与所述的左侧支架的撑杆通过一四轴转动连接，所述连杆横杆的另一端部与所述的右侧支架的 撑杆通过二四轴转动连接；所述车架还具有第二折叠状态，当所述车架由所述第一折叠状态向所述第二折叠状态转换时，所述左侧支架相对所述连接架分别绕所述一一轴、所述一二轴、所述一三轴折叠翻转，所述右侧支架相对所述连接架分别绕所述二一轴、所述二二轴、所述二三轴折叠翻转；当所述的车架处于所述第二折叠状态下，所述的一一轴的轴心线，所述的一二轴的轴心线、所述的一三轴的轴心线与所述一四轴的轴心线相平行或重合，所述的二一轴的轴心线、所述的二二轴的轴心线、所述的二三轴的轴心线与所述二四轴的轴心线相平行或重合。
本发明的目的是提供另一种儿童推车。
为达到上述目的，本发明采用的技术方案是：一种儿童推车，包括具有展开状态和第一折叠状态的车架、第一车轮组件、第二车轮组件、用于将所述车架锁定在所述展开状态下的锁定机构、以及设置在所述车架上的坐杆，所述车架包括位于左侧部的左侧支架、位于右侧部的右侧支架、以及连接于所述左侧支架和所述右侧支架之间的连接架，所述左侧支架和所述右侧支架都包括：第一底架，在所述车架的展开状态下，所述第一底架自前向后并向上倾斜延伸，所述第一底架的下端部与所述第一车轮组件连接，所述第一车轮组件为前轮组件；第二底架，在所述车架的展开状态下，所述第二底架自后向前并向上倾斜延伸，所述第二底架为伸缩杆组件，所述第二底架包括上杆和设置在所述上杆下方并与所述上杆上下滑动连接的下杆，所述下杆的下端部与所述第二车轮组件连接，所述第二车轮组件为后轮组件；侧杆，所述第一底架的上端部、所述上杆的上端部、以及所述侧杆的下端部三个部件中的其中两个部件转动连接，第三个部件与前述两个部件中的一个转动连接；撑杆，所述撑杆与所述上杆通过第一轴转动连接；推杆，所述的推杆的下部分别与所述侧杆的上端部和所述撑杆的上端部转动连接；连杆，所述连杆在所述车架的展开状态下沿前后方向延伸，且所述连杆的一端部与所述第一底架的下部通过第二轴转动连接，所述连杆还与所述撑杆通过第三轴转动连接，且在所述车架的展开状态下所述第三轴位于所述第一轴的下方；所述儿童推车还包括当所述车架由所述展开状态向所述第一折叠状态转换时用于驱动所述下杆相对所述上杆向上滑动和当所述车架由所述第一折叠状态向所述展开 状态转换时用于驱动所述下杆相对所述上杆向下滑动的驱动机构，所述驱动机构为驱动杆，所述驱动杆的一端部与所述下杆通过第六轴转动连接，所述驱动杆的另一端部与所述撑杆通过第五轴转动连接，且在所述车架的展开状态下，所述第五轴位于所述第一轴的下方，所述上杆上开设有沿所述上杆的延伸方向延伸的导向槽，所述第六轴滑动设置在所述导向槽中；
所述连接架包括:第一横杆，所述第一横杆的一端部与所述左侧支架的第一底架通过一一轴转动连接，所述第一横杆的另一端部与所述右侧支架的第一底架通过二一轴转动连接；第二横杆，所述第二横杆的一端部与所述左侧支架的上杆通过一二轴转动连接，所述第二横杆的另一端部与所述右侧支架的上杆通过二二轴转动连接；上横杆，所述上横杆的一端部与所述左侧支架的推杆通过一三轴转动连接，所述上横杆的另一端部与所述右侧支架的推杆通过二三轴转动连接；连杆横杆，所述连杆横杆的一端部与所述的左侧支架的撑杆通过一四轴转动连接，所述连杆横杆的另一端部与所述的右侧支架的撑杆通过二四轴转动连接；所述车架还具有第二折叠状态，当所述车架由所述第一折叠状态向所述第二折叠状态转换时，所述左侧支架相对所述连接架分别绕所述一一轴、所述一二轴、所述一三轴折叠翻转，所述右侧支架相对所述连接架分别绕所述二一轴、所述二二轴、所述二三轴折叠翻转；当所述的车架处于所述第二折叠状态下，所述的一一轴的轴心线，所述的一二轴的轴心线、所述的一三轴的轴心线与所述一四轴的轴心线相平行或重合，所述的二一轴的轴心线、所述的二二轴的轴心线、所述的二三轴的轴心线与所述二四轴的轴心线相平行或重合。
本发明的目的是提供另一种儿童推车。
为达到上述目的，本发明采用的技术方案是：一种儿童推车，包括具有展开状态和第一折叠状态的车架、第一车轮组件、第二车轮组件、用于将所述车架锁定在所述展开状态下的锁定机构、以及设置在所述车架上的坐杆，所述车架包括位于左侧部的左侧支架、位于右侧部的右侧支架、以及连接于所述左侧支架和所述右侧支架之间的连接架，所述左侧支架和所述右侧支架都包括：第一底架，所述第一底架的下端部与所述第一车轮组件连接；第二底架，所述第二底架为伸缩杆组件，所述第二底架包括上杆和设置在所述上 杆下方并与所述上杆上下滑动连接的下杆，所述下杆的下端部与所述第二车轮组件连接；侧杆，所述第一底架的上端部、所述上杆的上端部、以及所述侧杆的下端部三个部件中的其中两个部件转动连接，第三个部件与前述两个部件中的一个转动连接；撑杆，所述撑杆与所述上杆通过第一轴转动连接；推杆，所述的推杆的下部分别与所述侧杆的上端部和所述撑杆的上端部转动连接；连杆，所述连杆在所述车架的展开状态下沿前后方向延伸，且所述连杆的一端部与所述第一底架的下部通过第二轴转动连接，所述连杆还与所述撑杆通过第三轴转动连接；在所述车架的展开状态下，所述第一底架和所述第二底架两者中的一者自前向后并向上倾斜延伸，另一者后向前并向上倾斜延伸，当第一底架自前向后并向上倾斜延伸，第二底架自后向前并向上倾斜延伸时，第一车轮组件是前轮，第二车轮组件是后轮，使用者站在靠近第二底架的那侧，自后向前推动该儿童推车，当然也可以设置成第二底架自前向后并向上倾斜延伸，第一底架自后向前并向上倾斜延伸，第二车轮组件是前轮，第一车轮组件是后轮，使用者站在靠近第一底架的那侧，自后向前推动该儿童推车。
进一步地，在所述车架的展开状态下所述第三轴位于所述第一轴的下方。
进一步地，在所述车架的展开状态下所述第三轴位于所述第一轴的上方。
进一步地，所述第一车轮组件为前轮组件，所述第二车轮组件为后轮组件。
进一步地，所述儿童推车还包括当所述车架由所述展开状态向所述第一折叠状态转换时用于驱动所述下杆相对所述上杆向上滑动，或/和当所述车架由所述第一折叠状态向所述展开状态转换时用于驱动所述下杆相对所述上杆向下滑动的驱动机构。
进一步地，所述上杆可滑动地插设于在所述下杆内或所述下杆可滑动地插设于所述上杆内，所述驱动机构为设置在所述上杆与所述下杆之间的弹性件，所述弹性件用于提供使所述下杆相对所述上杆向下滑动所需弹性力。
进一步地，所述驱动机构为驱动杆，所述驱动杆在所述车架的展开状态下沿前后方向延伸，所述驱动杆的一端部与所述下杆转动连接，所述驱动杆的另一端部与所述连杆通过第四轴转动连接，且所述第三轴位于所述第二轴 和所述第四轴之间。
进一步地，所述驱动机构为驱动杆，所述驱动杆的一端部与所述下杆转动连接，所述驱动杆的另一端部与所述撑杆通过第五轴转动连接，且在所述车架的展开状态下，所述第五轴位于所述第一轴的下方。
进一步地，所述驱动杆通过第六轴与所述下杆转动连接，所述上杆上开设有沿所述上杆的延伸方向延伸的导向槽，所述第六轴滑动设置在所述导向槽中。
进一步地，所述连接架包括:第一横杆，所述第一横杆的一端部与所述左侧支架的第一底架通过一一轴转动连接，所述第一横杆的另一端部与所述右侧支架的第一底架通过二一轴转动连接；第二横杆，所述第二横杆的一端部与所述左侧支架的第二底架通过一二轴转动连接，所述第二横杆的另一端部与所述右侧支架的第二底架通过二二轴转动连接；上横杆，所述上横杆的一端部与所述左侧支架的推杆通过一三轴转动连接，所述上横杆的另一端部与所述右侧支架的推杆通过二三轴转动连接；所述车架还具有第二折叠状态，当所述车架由所述第一折叠状态向所述第二折叠状态转换时，所述左侧支架相对所述连接架分别绕所述一一轴、所述一二轴、所述一三轴折叠翻转，所述右侧支架相对所述连接架分别绕所述二一轴、所述二二轴、所述二三轴折叠翻转。
进一步地，所述第二横杆的一端部与所述左侧支架的上杆通过一二轴转动连接，所述第二横杆的另一端部与所述右侧支架的上杆通过二二轴转动连接。
进一步地，当所述的车架处于所述第二折叠状态下，所述的一一轴的轴心线，所述的一二轴的轴心线与所述的一三轴的轴心线相平行，所述的二一轴的轴心线、所述的二二轴的轴心线与所述的二三轴的轴心线相平行；或者所述的一一轴的轴心线，所述的一二轴的轴心线与所述的一三轴的轴心线相重合，所述的二一轴的轴心线、所述的二二轴的轴心线与所述的二三轴的轴心线相重合。
进一步地，所述连接架还包括连杆横杆，所述连杆横杆的一端部与所述的左侧支架的撑杆通过一四轴转动连接，所述连杆横杆的另一端部与所述的 右侧支架的撑杆通过二四轴转动连接，当所述的车架处于所述第二折叠状态下，所述的一一轴的轴心线、所述的一二轴的轴心线、所述的一三轴的轴心线与所述的一四轴的轴心线相平行或相重合，相应的所述的二一轴的轴心线、所述的二二轴的轴心线、所述的二三轴的轴心线与所述的二四轴的轴心线相平行或相重合。
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：本发明的儿童推车折叠和展开操作方便，方便了消费者的使用，且通过将第二底架设置为伸缩杆组件，使得折叠后的结构更加紧凑。
附图说明
附图1为本发明的儿童推车的车架在展开状态下的侧面剖视图(实施例1)；
附图2为本发明的儿童推车的车架在展开状态下的立体图(实施例1)；
附图3为本发明的儿童推车的车架在展开状态与第一折叠状态转换过程中的侧视图(实施例1)；
附图4为本发明的儿童推车的车架在展开状态与第一折叠状态转换过程中的立体图(实施例1)；
附图5为本发明的儿童推车的车架在第一折叠状态下的立体图(实施例1)；
附图6为本发明的儿童推车的车架在第一折叠状态下另一视角的立体图(实施例1)；
附图7为本发明的儿童推车的车架在第二折叠状态下的立体图(实施例1)；
附图8为本发明的儿童推车的车架在第二折叠状态下另一视角的立体图(实施例1)；
附图9为本发明的儿童推车的车架在展开状态下的侧视图(实施例2)；
附图10为本发明的儿童推车的车架在展开状态下的立体图(实施例2)；
附图11为本发明的儿童推车的车架在展开状态与第一折叠状态转换过程中的侧视图(实施例2)；
附图12为本发明的儿童推车的车架在第一折叠状态下的立体图(实施例2)；
附图13为本发明的儿童推车的车架在第二折叠状态下的主视图(实施例2)；
附图14为本发明的儿童推车的车架在展开状态下的侧视图(实施例3)；
附图15为本发明的儿童推车的车架在展开状态下的立体图(实施例3)；
附图16为本发明的儿童推车的车架在展开状态下的侧面剖视图(实施例4)；
附图17为本发明的儿童推车的车架在展开状态下的立体图(实施例4)；
附图18为本发明的儿童推车的车架在展开状态与第一折叠状态转换过程中的侧视图(实施例4)；
附图19为本发明的儿童推车的车架在展开状态与第一折叠状态转换过程中的立体图(实施例4)；
附图20为本发明的儿童推车的车架在展开状态下的侧视图(实施例5)；
附图21为本发明的儿童推车的车架在展开状态下的立体图(实施例5)。
图中标号为：
1a、第一车轮组件；1b、第二车轮组件；2a、右侧支架；2b、左侧支架；3a、第一横杆；3b、第二横杆；3c、上横杆；3d、连杆横杆；4、第一底架；5a、上杆；5aa、上杆本体；5ab、延伸杆；5b、下杆；6、侧杆；7、撑杆；8aa、上推杆本体；8ab、握把杆；8b、下推杆；9、连杆；10、驱动杆；11、弹性件；12、导向槽；13、坐杆；14、解锁按钮41、第一轴；42、第二轴；43、第三轴；44、第四轴；45、第五轴；46、第六轴；51、二一轴；52、二二轴；53、二三轴；54、二四轴；61、一一轴；62、一二轴；63、一三轴；64、一四轴。
具体实施方式
下面结合附图和具体实施例来对本发明的技术方案作进一步的阐述。
实施例1
如图1-8所示，本实施例中的儿童推车，包括具有展开状态和第一折叠状态的车架、第一车轮组件1a、第二车轮组件1b、用于将车架锁定在展开状态下的锁定机构(图中未示出)、以及设置在所述车架上的坐杆13，车架包括位于左侧部的左侧支架2b、位于右侧部的右侧支架2a、以及连接于左侧支架2b和右侧支架2a之间的连接架，左侧支架2b和右侧支架2a都包括：
第一底架4，第一底架4的下端部与第一车轮组件1a连接；
第二底架，第二底架为伸缩杆组件，第二底架包括上杆5a和设置在上杆5a下方并与上杆5a上下滑动连接的下杆5b，上杆5a可滑动地插设于在下杆5b内或下杆5b可滑动地插设于上杆5a内，下杆5b的下端部与第二车轮组件1b连接，本实施例中第一底架4在车架的展开状态下自前向后并向上倾斜延伸，第二底架在车架的展开状态下自后向前并向上倾斜延伸，第一车轮组件1a为前轮组件，第二车轮组件1b为后轮组件；
侧杆6，第一底架4的上端部、上杆5a的上端部、以及侧杆6的下端部三个部件中的其中两个部件转动连接，第三个部件与前述两个部件中的一个转动连接,具体地，本实施例中优选设置为第一底架4的上端部与上杆5a的上端部转动连接，侧杆6的下端部与上杆5a的上端部转动连接，上杆5a具体包括上杆本体5aa以及固定连接在上杆本体上端部的延伸杆5ab，延伸杆5ab的两端分别与第一底架4的上端部和侧杆6的下端部转动连接，且在车架的第一折叠状态下，延伸杆5ab大致沿水平方向延伸；
撑杆7，撑杆7与上杆5a通过第一轴41转动连接；
推杆，推杆的下部分别与侧杆6的上端部和撑杆7的上端部转动连接，本实施例中推杆为伸缩杆组件，具体包括上推杆以及与上推杆的下部滑动连接的下推杆8b，上推杆包括上推杆本体8aa以及固定设置在上推杆本体8aa上端部的握把杆8ab，握把杆8ab的一端部设置有解锁按钮14，用于解锁上推杆和下推杆8b的相对滑动关系；
连杆9，连杆9在车架的展开状态下沿前后方向延伸，且连杆9的前端部与第一底架4的下部通过第二轴42转动连接，连杆9的后端部与撑杆7的下端部通过第三轴43转动连接，且在车架的展开状态下第三轴43位于第一 轴41的下方。
儿童推车还包括当车架由展开状态向第一折叠状态转换时用于驱动下杆5b相对上杆5a向上滑动，或/和当车架由第一折叠状态向展开状态转换时用于驱动下杆5b相对上杆5a向下滑动的驱动机构。本实施例中驱动机构为设置在上杆5a与下杆5b之间的弹性件11，弹性件11用于提供使下杆5b相对上杆5a向下滑动所需弹性力，当车架处于展开状态时，第二底架的长度大于当车架处于第一折叠状态时第二底架的长度，具体地，在上杆5a与下杆5b之间设置锁定装置(图中未示出)，用于将上杆5a和下杆5b之间的位置相对锁定，即该锁定装置用于将第二底架分别锁定在车架的展开状态下的伸长状态以及车架的第一折叠状态下的缩短状态。
连接架包括：
第一横杆3a，第一横杆3a的一端部与左侧支架2b的第一底架4通过一一轴61转动连接，第一横杆3a的另一端部与右侧支架2a的第一底架4通过二一轴51转动连接；
第二横杆3b，第二横杆3b的一端部与左侧支架2b的第二底架的上杆5a通过一二轴62转动连接，第二横杆3b的另一端部与右侧支架2a第二底架的上杆5a通过二二轴52转动连接；
上横杆3c，上横杆3c的一端部与左侧支架2b的推杆通过一三轴63转动连接，上横杆3c的另一端部与右侧支架2a的推杆通过二三轴53转动连接；
车架还具有第二折叠状态，当车架由第一折叠状态向第二折叠状态转换时，左侧支架2b相对连接架分别绕一一轴61、一二轴62、一三轴63折叠翻转，右侧支架2a相对连接架分别绕二一轴51、二二轴52、二三轴53折叠翻转。
如图7-8所示，当车架处于第二折叠状态下，一一轴61的轴心线，一二轴62的轴心线与一三轴63的轴心线相平行，二一轴51的轴心线、二二轴52的轴心线与二三轴53的轴心线相平行；优选地一一轴61的轴心线、一二轴62的轴心线与一三轴63的轴心线相重合，二一轴51的轴心线、二二轴52的轴心线与二三轴53的轴心线相重合，这样在车架的第二折叠状态下左 侧支架2b与右侧支架2a相对于连接架可以更好地靠拢。
为了车架在展开状态下的稳定性更强，优选连接架还包括连杆横杆3d，连杆横杆3d的一端部与左侧支架2b的撑杆7通过一四轴64转动连接，连杆横杆3d的另一端部与右侧支架2a的撑杆7通过二四轴54转动连接，如图7-8所示，当车架处于第二折叠状态下，一一轴61的轴心线、一二轴62的轴心线、一三轴63的轴心线与一四轴64的轴心线相平行或相重合，相应的二一轴51的轴心线、二二轴52的轴心线、二三轴53的轴心线与二四轴54的轴心线相平行或相重合。
在不增加第一底架4的长度的前提下，将第二底架设置为伸缩杆组件，这样在车架的展开状态下，第二底架长度伸长，有利于车架底部宽敞地设置用于放置杂物用的篮筐，且车架上的坐杆13距离放置儿童推车水平面的高度也相应加大，如图1所示，第一底架4和侧杆6之间形成夹角α，夹角α的角度范围为135度-180度，优选的夹角α的角度为160度。
本实施例中在车架的展开状态下第一车轮组件1a左右方向的宽度小于第二车轮组件1b左右方向的宽度，且第一车轮组件1a和第二车轮组件1b都设置为单轮，如图5-6所示，在车架的第一折叠状态时，第一车轮组件1a收拢在第二车轮组件1b的内侧，如果将第一车轮组件1b和第二车轮组件1b都设置成双轮，会使得第一折叠状态下增加儿童推车的折叠体积，单轮的设置使得第一折叠状态下儿童推车的折叠体积更小，也有利于进一步折叠为第二折叠状态。
本实施例中的锁定机构包括用于将上推杆和下推杆8b相对锁定的锁定装置、用于将推杆和撑杆7相对锁定的锁定装置、以及用于将上杆5a和下杆5b相对锁定的锁定装置。
儿童推车的车架在由展开状态向第一折叠状态转换时，按压握把杆8ab上的解锁按钮14，将上推杆和下推杆8b之间的相对锁定关系解除，然后将上推杆相对下推杆8b向下滑动，上推杆撞击设置在推杆和撑杆7之间的解锁按钮，将推杆与撑杆7之间的相对转动关系解锁，推杆带动侧杆6绕与上杆5a上端部的转动连接点向后向下转动，推杆带动撑杆7绕第一轴41向后向下转动，并向第二底架靠拢，撑杆7带动连杆9，在连杆9的作用下第一 底架4向第二底架靠拢，再将上杆5a和下杆5b之间的锁定装置解锁(图中未示出)，推动下杆5b，使得下杆5b相对上杆5a向上滑动，再将第二底架锁定在缩短状态下，如图5-6所示，达到第一折叠状态，此时第一车轮组件1a收拢在左右两侧的第二车轮组件1b之间，且第二车轮组件1b轮轴的轴心线沿左右方向延伸，本实施例中左侧支架2b和右侧支架2a的握把杆8ab分别沿前后方向水平延伸并收拢在整个车架的左右最外侧，握把杆8ab的最前端不超出延伸杆5ab的最前端，第一横杆3a、第二横杆3b、上横杆3c、以及连杆横杆3d沿左右方向的长度相等，整个车架沿前后方向的长度的两倍小于等于第一横杆3a、第二横杆3b、上横杆3c、或连杆横杆3d的长度；车架由第一折叠状态向第二折叠状态转换时，再将左侧支架2b和右侧支架2a相对连接架向内进行90度的翻转，如图7-8所示，达到第二折叠状态，此时第二车轮组件1b轮轴的轴心线沿前后方向延伸，且第一车轮组件1a的最后端不超出第一横杆3a、第二横杆3b、上横杆3c、或连杆横杆3d这四根杆的最后端，第二车轮组件1b的最前端不超出此时握把杆8ab的最前端。
相反地当车架由第一折叠状态向展开状态转换时，将锁定上杆5a和下杆5b的锁定装置解锁，弹性件11带动下杆5b相对上杆5a向下滑动，使得第二底架的长度伸长达到第二底架的伸长状态，再将第二底架锁定在伸长状态。
实施例2
如图9-13所示，本实施例与实施例1的区别主要在于驱动机构的不同，且由于本实施例中的驱动机构的不同，导致本实施例中的锁定机构不再包括用于将上杆5a和下杆5b相对锁定的锁定装置。
本实施例中驱动机构为驱动杆10，驱动杆10在车架的展开状态下由前向后自上往下倾斜延伸，驱动杆10的后端部与下杆5b转动连接，驱动杆的前端部与撑杆7通过第五轴45转动连接，且在车架的展开状态下，第五轴45位于第一轴41的下方，具体地驱动杆10后端部与下杆5b转动连接点的轴心线与第二车轮组件1b的轴心线同轴，撑杆7包括本体杆和在车架的展开状态下沿上下方向延伸的延伸杆，延伸杆的上端部与本体杆固定连接，延伸杆的下端部与驱动杆10通过第五轴45转动连接，且在车架的展开状态下第五轴45位于第三轴43的下后方。
儿童推车的车架在由展开状态向第一折叠状态转换时，将推杆往下压，推杆带动侧杆6绕与上杆5a上端部的转动连接点向后向下转动，推杆带动撑杆7绕第一轴41向后向下转动，并向第二底架靠拢，撑杆7带动连杆9和驱动杆10，在连杆9的作用下第一底架4向第二底架靠拢，驱动杆10带动下杆5b相对上杆5a向上滑动，使得第二底架的长度缩短到达缩短状态，达到第一折叠状态；车架由第一折叠状态向第二折叠状态转换时，再将左侧支架2b和右侧支架2a相对连接架向内进行90度的翻转，达到第二折叠状态。
相反地当车架由第一折叠状态向展开状态转换时，驱动杆10带动下杆5b相对上杆5a向下滑动，使得第二底架的长度伸长达到第二底架的伸长状态。
实施例3
如图14-15所示，本实施例与实施例1的区别主要在于驱动机构的不同。
本实施例中的驱动机构为驱动杆10，驱动杆10在车架的展开状态下沿前后方向延伸，驱动杆10的后端部与下杆5b转动连接，驱动杆10的前端部与连杆9通过第四轴44转动连接，且第三轴43位于第二轴42和第四轴44之间。具体地，驱动杆10通过第六轴46与下杆5b的上部转动连接，上杆5a上开设有沿上杆5a的延伸方向延伸的导向槽12，第六轴46滑动设置在导向槽12中。
儿童推车的车架在由展开状态向第一折叠状态转换时，将推杆往下压，推杆带动侧杆6绕与上杆5a上端部的转动连接点向后向下转动，推杆带动撑杆7绕第一轴41向后向下转动，并向第二底架靠拢，撑杆7带动连杆9，在连杆9的作用下第一底架4向第二底架靠拢，连杆9带动驱动杆10，第六轴46在上杆5a的导向槽12中由下往上滑动，使得下杆5b相对上杆5a向上滑动，使得第二底架的长度缩短到达缩短状态，达到第一折叠状态；车架由第一折叠状态向第二折叠状态转换时，再将左侧支架2b和右侧支架2a相对连接架向内进行90度的翻转，达到第二折叠状态。
相反地当车架由第一折叠状态向展开状态转换时，驱动杆10使得第六轴46在导向槽12中由上往下滑动，从而使得下杆5b相对上杆5a向下滑动， 使得第二底架的长度伸长达到第二底架的伸长状态。
实施例4
如图16-19所示，本实施例与实施例1的主要区别在于本实施例中第一底架在车架的展开状态下自后向前并向上倾斜延伸，第二底架在车架的展开状态下自前向后并向上倾斜延伸，第一车轮组件1a为后轮组件，第二车轮组件1b为前轮组件。具体地，在车架的展开状态下，推杆自前向后并向上倾斜延伸。
相应的，连杆9的后端部与第一底架4的下部通过第二轴42转动连接，连杆9的前端部与撑杆7的下端部通过第三轴43转动连接，
儿童推车的车架在由展开状态向第一折叠状态转换时，将推杆往下压，推杆带动侧杆6绕与上杆5a上端部的转动连接点向前向下转动，推杆带动撑杆7绕第一轴41向前向下转动，并向第二底架靠拢，撑杆7带动连杆9，在连杆9的作用下第一底架4向第二底架靠拢，并将上杆5a和下杆5b之间的锁定装置解锁，推动下杆5b，使得下杆5b相对上杆5a向上滑动，再将第二底架锁定在缩短状态下，达到第一折叠状态。
实施例5
如图20-21所示，本实施例与实施例2的主要区别是在车架的展开状态下，连杆9与撑杆7的转动连接点第三轴43设置在撑杆7与上杆5a的转动连接点第一轴41的上方，当然在车架的展开状态下，也可以将第三轴43设置成与第一轴41位于同一水平面上。
另外此实施例中将连杆9用作坐杆13，省略了实施例2中另外设置的坐杆13。具体地，连杆9的上部向后折弯，形成相当于坐杆13的功能部。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (16)

  1. 一种儿童推车，包括具有展开状态和第一折叠状态的车架、第一车轮组件、第二车轮组件、用于将所述车架锁定在所述展开状态下的锁定机构、以及设置在所述车架上的坐杆，所述车架包括位于左侧部的左侧支架、位于右侧部的右侧支架、以及连接于所述左侧支架和所述右侧支架之间的连接架，其特征在于，所述左侧支架和所述右侧支架都包括：
    第一底架，在所述车架的展开状态下，所述第一底架自前向后并向上倾斜延伸，所述第一底架的下端部与所述第一车轮组件连接，所述第一车轮组件为前轮组件；
    第二底架，在所述车架的展开状态下，所述第二底架自后向前并向上倾斜延伸，所述第二底架为伸缩杆组件，所述第二底架包括上杆和设置在所述上杆下方并与所述上杆上下滑动连接的下杆，所述上杆可滑动地插设于在所述下杆内或所述下杆可滑动地插设于所述上杆内，所述下杆的下端部与所述第二车轮组件连接，所述第二车轮组件为后轮组件；
    侧杆，所述第一底架的上端部、所述上杆的上端部、以及所述侧杆的下端部三个部件中的其中两个部件转动连接，第三个部件与前述两个部件中的一个转动连接；
    撑杆，所述撑杆与所述上杆通过第一轴转动连接；
    推杆，所述的推杆的下部分别与所述侧杆的上端部和所述撑杆的上端部转动连接；
    连杆，所述连杆在所述车架的展开状态下沿前后方向延伸，且所述连杆的一端部与所述第一底架的下部通过第二轴转动连接，所述连杆还与所述撑杆通过第三轴转动连接，且在所述车架的展开状态下所述第三轴位于所述第一轴的下方；
    所述儿童推车还包括当所述车架由所述第一折叠状态向所述展开状态转换时用于驱动所述下杆相对所述上杆向下滑动的驱动机构，所述驱动机构为设置在所述上杆与所述下杆之间的弹性件，所述弹性件用于提供使所述下杆相对所述上杆向下滑动所需弹性力；
    所述连接架包括:
    第一横杆，所述第一横杆的一端部与所述左侧支架的第一底架通过一一轴转动连接，所述第一横杆的另一端部与所述右侧支架的第一底架通过二一轴转动连接；
    第二横杆，所述第二横杆的一端部与所述左侧支架的上杆通过一二轴转动连接，所述第二横杆的另一端部与所述右侧支架的上杆通过二二轴转动连接；上横杆，所述上横杆的一端部与所述左侧支架的推杆通过一三轴转动连接，所述上横杆的另一端部与所述右侧支架的推杆通过二三轴转动连接；
    连杆横杆，所述连杆横杆的一端部与所述的左侧支架的撑杆通过一四轴转动连接，所述连杆横杆的另一端部与所述的右侧支架的撑杆通过二四轴转动连接；
    所述车架还具有第二折叠状态，当所述车架由所述第一折叠状态向所述第二折叠状态转换时，所述左侧支架相对所述连接架分别绕所述一一轴、所述一二轴、所述一三轴折叠翻转，所述右侧支架相对所述连接架分别绕所述二一轴、所述二二轴、所述二三轴折叠翻转；当所述的车架处于所述第二折叠状态下，所述的一一轴的轴心线，所述的一二轴的轴心线、所述的一三轴的轴心线与所述一四轴的轴心线相平行或重合，所述的二一轴的轴心线、所述的二二轴的轴心线、所述的二三轴的轴心线与所述二四轴的轴心线相平行或重合。
  2. 一种儿童推车，包括具有展开状态和第一折叠状态的车架、第一车轮组件、第二车轮组件、用于将所述车架锁定在所述展开状态下的锁定机构、以及设置在所述车架上的坐杆，所述车架包括位于左侧部的左侧支架、位于右侧部的右侧支架、以及连接于所述左侧支架和所述右侧支架之间的连接架，其特征在于，所述左侧支架和所述右侧支架都包括：
    第一底架，在所述车架的展开状态下，所述第一底架自前向后并向上倾斜延伸，所述第一底架的下端部与所述第一车轮组件连接，所述第一车轮组件为前轮组件；
    第二底架，在所述车架的展开状态下，所述第二底架自后向前并向上倾斜延 伸，所述第二底架为伸缩杆组件，所述第二底架包括上杆和设置在所述上杆下方并与所述上杆上下滑动连接的下杆，所述下杆的下端部与所述第二车轮组件连接，所述第二车轮组件为后轮组件；
    侧杆，所述第一底架的上端部、所述上杆的上端部、以及所述侧杆的下端部三个部件中的其中两个部件转动连接，第三个部件与前述两个部件中的一个转动连接；
    撑杆，所述撑杆与所述上杆通过第一轴转动连接；
    推杆，所述的推杆的下部分别与所述侧杆的上端部和所述撑杆的上端部转动连接；
    连杆，所述连杆在所述车架的展开状态下沿前后方向延伸，且所述连杆的一端部与所述第一底架的下部通过第二轴转动连接，所述连杆还与所述撑杆通过第三轴转动连接，且在所述车架的展开状态下所述第三轴位于所述第一轴的下方；
    所述儿童推车还包括当所述车架由所述展开状态向所述第一折叠状态转换时用于驱动所述下杆相对所述上杆向上滑动和当所述车架由所述第一折叠状态向所述展开状态转换时用于驱动所述下杆相对所述上杆向下滑动的驱动机构，所述驱动机构为驱动杆，所述驱动杆在所述车架的展开状态下沿前后方向延伸，所述驱动杆的一端部与所述下杆通过第六轴转动连接，所述驱动杆的另一端部与所述连杆通过第四轴转动连接，且所述第三轴位于所述第二轴和所述第四轴之间，所述上杆上开设有沿所述上杆的延伸方向延伸的导向槽，所述第六轴滑动设置在所述导向槽中；
    所述连接架包括:
    第一横杆，所述第一横杆的一端部与所述左侧支架的第一底架通过一一轴转动连接，所述第一横杆的另一端部与所述右侧支架的第一底架通过二一轴转动连接；
    第二横杆，所述第二横杆的一端部与所述左侧支架的上杆通过一二轴转动连接，所述第二横杆的另一端部与所述右侧支架的上杆通过二二轴转动连接；上横杆，所述上横杆的一端部与所述左侧支架的推杆通过一三轴转动连接， 所述上横杆的另一端部与所述右侧支架的推杆通过二三轴转动连接；
    连杆横杆，所述连杆横杆的一端部与所述的左侧支架的撑杆通过一四轴转动连接，所述连杆横杆的另一端部与所述的右侧支架的撑杆通过二四轴转动连接；
    所述车架还具有第二折叠状态，当所述车架由所述第一折叠状态向所述第二折叠状态转换时，所述左侧支架相对所述连接架分别绕所述一一轴、所述一二轴、所述一三轴折叠翻转，所述右侧支架相对所述连接架分别绕所述二一轴、所述二二轴、所述二三轴折叠翻转；当所述的车架处于所述第二折叠状态下，所述的一一轴的轴心线，所述的一二轴的轴心线、所述的一三轴的轴心线与所述一四轴的轴心线相平行或重合，所述的二一轴的轴心线、所述的二二轴的轴心线、所述的二三轴的轴心线与所述二四轴的轴心线相平行或重合。
  3. 一种儿童推车，包括具有展开状态和第一折叠状态的车架、第一车轮组件、第二车轮组件、用于将所述车架锁定在所述展开状态下的锁定机构、以及设置在所述车架上的坐杆，所述车架包括位于左侧部的左侧支架、位于右侧部的右侧支架、以及连接于所述左侧支架和所述右侧支架之间的连接架，其特征在于，所述左侧支架和所述右侧支架都包括：
    第一底架，在所述车架的展开状态下，所述第一底架自前向后并向上倾斜延伸，所述第一底架的下端部与所述第一车轮组件连接，所述第一车轮组件为前轮组件；
    第二底架，在所述车架的展开状态下，所述第二底架自后向前并向上倾斜延伸，所述第二底架为伸缩杆组件，所述第二底架包括上杆和设置在所述上杆下方并与所述上杆上下滑动连接的下杆，所述下杆的下端部与所述第二车轮组件连接，所述第二车轮组件为后轮组件；
    侧杆，所述第一底架的上端部、所述上杆的上端部、以及所述侧杆的下端部三个部件中的其中两个部件转动连接，第三个部件与前述两个部件中的一个转动连接；
    撑杆，所述撑杆与所述上杆通过第一轴转动连接；
    推杆，所述的推杆的下部分别与所述侧杆的上端部和所述撑杆的上端部转动连接；
    连杆，所述连杆在所述车架的展开状态下沿前后方向延伸，且所述连杆的一端部与所述第一底架的下部通过第二轴转动连接，所述连杆还与所述撑杆通过第三轴转动连接，且在所述车架的展开状态下所述第三轴位于所述第一轴的下方；
    所述儿童推车还包括当所述车架由所述展开状态向所述第一折叠状态转换时用于驱动所述下杆相对所述上杆向上滑动和当所述车架由所述第一折叠状态向所述展开状态转换时用于驱动所述下杆相对所述上杆向下滑动的驱动机构，所述驱动机构为驱动杆，所述驱动杆的一端部与所述下杆通过第六轴转动连接，所述驱动杆的另一端部与所述撑杆通过第五轴转动连接，且在所述车架的展开状态下，所述第五轴位于所述第一轴的下方，所述上杆上开设有沿所述上杆的延伸方向延伸的导向槽，所述第六轴滑动设置在所述导向槽中；
    所述连接架包括:
    第一横杆，所述第一横杆的一端部与所述左侧支架的第一底架通过一一轴转动连接，所述第一横杆的另一端部与所述右侧支架的第一底架通过二一轴转动连接；
    第二横杆，所述第二横杆的一端部与所述左侧支架的上杆通过一二轴转动连接，所述第二横杆的另一端部与所述右侧支架的上杆通过二二轴转动连接；上横杆，所述上横杆的一端部与所述左侧支架的推杆通过一三轴转动连接，所述上横杆的另一端部与所述右侧支架的推杆通过二三轴转动连接；
    连杆横杆，所述连杆横杆的一端部与所述的左侧支架的撑杆通过一四轴转动连接，所述连杆横杆的另一端部与所述的右侧支架的撑杆通过二四轴转动连接；
    所述车架还具有第二折叠状态，当所述车架由所述第一折叠状态向所述第二折叠状态转换时，所述左侧支架相对所述连接架分别绕所述一一轴、所述一二轴、所述一三轴折叠翻转，所述右侧支架相对所述连接架分别绕所述二一轴、所述二二轴、所述二三轴折叠翻转；当所述的车架处于所述第二折叠状 态下，所述的一一轴的轴心线，所述的一二轴的轴心线、所述的一三轴的轴心线与所述一四轴的轴心线相平行或重合，所述的二一轴的轴心线、所述的二二轴的轴心线、所述的二三轴的轴心线与所述二四轴的轴心线相平行或重合。
  4. 一种儿童推车，包括具有展开状态和第一折叠状态的车架、第一车轮组件、第二车轮组件、用于将所述车架锁定在所述展开状态下的锁定机构、以及设置在所述车架上的坐杆，所述车架包括位于左侧部的左侧支架、位于右侧部的右侧支架、以及连接于所述左侧支架和所述右侧支架之间的连接架，其特征在于，所述左侧支架和所述右侧支架都包括：
    第一底架，所述第一底架的下端部与所述第一车轮组件连接；
    第二底架，所述第二底架为伸缩杆组件，所述第二底架包括上杆和设置在所述上杆下方并与所述上杆上下滑动连接的下杆，所述下杆的下端部与所述第二车轮组件连接；
    侧杆，所述第一底架的上端部、所述上杆的上端部、以及所述侧杆的下端部三个部件中的其中两个部件转动连接，第三个部件与前述两个部件中的一个转动连接；
    撑杆，所述撑杆与所述上杆通过第一轴转动连接；
    推杆，所述的推杆的下部分别与所述侧杆的上端部和所述撑杆的上端部转动连接；
    连杆，所述连杆在所述车架的展开状态下沿前后方向延伸，且所述连杆的一端部与所述第一底架的下部通过第二轴转动连接，所述连杆还与所述撑杆通过第三轴转动连接；
    在所述车架的展开状态下，所述第一底架和所述第二底架两者中的一者自前向后并向上倾斜延伸，另一者自后向前并向上倾斜延伸。
  5. 根据权利要求4所述的儿童推车，其特征在于：在所述车架的展开状态下所述第三轴位于所述第一轴的下方。
  6. 根据权利要求4所述的儿童推车，其特征在于：在所述车架的展开状态下所述第三轴位于所述第一轴的上方。
  7. 根据权利要求4所述的儿童推车，其特征在于：所述第一车轮组件为前轮组件，所述第二车轮组件为后轮组件。
  8. 根据权利要求4所述的儿童推车，其特征在于：所述儿童推车还包括当所述车架由所述展开状态向所述第一折叠状态转换时用于驱动所述下杆相对所述上杆向上滑动，或/和当所述车架由所述第一折叠状态向所述展开状态转换时用于驱动所述下杆相对所述上杆向下滑动的驱动机构。
  9. 根据权利要求8所述的儿童推车，其特征在于：所述上杆可滑动地插设于在所述下杆内或所述下杆可滑动地插设于所述上杆内，所述驱动机构为设置在所述上杆与所述下杆之间的弹性件，所述弹性件用于提供使所述下杆相对所述上杆向下滑动所需弹性力。
  10. 根据权利要求8所述的儿童推车，其特征在于：所述驱动机构为驱动杆，所述驱动杆在所述车架的展开状态下沿前后方向延伸，所述驱动杆的一端部与所述下杆转动连接，所述驱动杆的另一端部与所述连杆通过第四轴转动连接，且所述第三轴位于所述第二轴和所述第四轴之间。
  11. 根据权利要求8所述的儿童推车，其特征在于：所述驱动机构为驱动杆，所述驱动杆的一端部与所述下杆转动连接，所述驱动杆的另一端部与所述撑杆通过第五轴转动连接，且在所述车架的展开状态下，所述第五轴位于所述第一轴的下方。
  12. 根据权力要求10或11所述的儿童推车，其特征在于：所述驱动杆通过第六轴与所述下杆转动连接，所述上杆上开设有沿所述上杆的延伸方向延伸的导向槽，所述第六轴滑动设置在所述导向槽中。
  13. 根据权利要求4至11任一项所述的儿童推车，其特征在于，所述连接架包括:
    第一横杆，所述第一横杆的一端部与所述左侧支架的第一底架通过一一轴转动连接，所述第一横杆的另一端部与所述右侧支架的第一底架通过二一轴转动连接；
    第二横杆，所述第二横杆的一端部与所述左侧支架的第二底架通过一二轴转动连接，所述第二横杆的另一端部与所述右侧支架的第二底架通过二二轴转 动连接；
    上横杆，所述上横杆的一端部与所述左侧支架的推杆通过一三轴转动连接，所述上横杆的另一端部与所述右侧支架的推杆通过二三轴转动连接；
    所述车架还具有第二折叠状态，当所述车架由所述第一折叠状态向所述第二折叠状态转换时，所述左侧支架相对所述连接架分别绕所述一一轴、所述一二轴、所述一三轴折叠翻转，所述右侧支架相对所述连接架分别绕所述二一轴、所述二二轴、所述二三轴折叠翻转。
  14. 根据权利要求13所述的儿童推车，其特征在于：所述第二横杆的一端部与所述左侧支架的上杆通过一二轴转动连接，所述第二横杆的另一端部与所述右侧支架的上杆通过二二轴转动连接。
  15. 根据权利要求13所述的儿童推车，其特征在于：当所述的车架处于所述第二折叠状态下，所述的一一轴的轴心线，所述的一二轴的轴心线与所述的一三轴的轴心线相平行，所述的二一轴的轴心线、所述的二二轴的轴心线与所述的二三轴的轴心线相平行；或者所述的一一轴的轴心线，所述的一二轴的轴心线与所述的一三轴的轴心线相重合，所述的二一轴的轴心线、所述的二二轴的轴心线与所述的二三轴的轴心线相重合。
  16. 根据权利要求15所述的儿童推车，其特征在于：所述连接架还包括连杆横杆，所述连杆横杆的一端部与所述的左侧支架的撑杆通过一四轴转动连接，所述连杆横杆的另一端部与所述的右侧支架的撑杆通过二四轴转动连接，当所述的车架处于所述第二折叠状态下，所述的一一轴的轴心线、所述的一二轴的轴心线、所述的一三轴的轴心线与所述的一四轴的轴心线相平行或相重合，相应的所述的二一轴的轴心线、所述的二二轴的轴心线、所述的二三轴的轴心线与所述的二四轴的轴心线相平行或相重合。
PCT/CN2020/083674 2020-01-22 2020-04-08 一种儿童推车 WO2021147178A1 (zh)

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JP2023512977A (ja) 2023-03-30
EP4095014A1 (en) 2022-11-30
US20220348248A1 (en) 2022-11-03
CN113753115B (zh) 2023-01-31
KR20220124240A (ko) 2022-09-13
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