WO2023240932A1 - 一种童车 - Google Patents

一种童车 Download PDF

Info

Publication number
WO2023240932A1
WO2023240932A1 PCT/CN2022/134955 CN2022134955W WO2023240932A1 WO 2023240932 A1 WO2023240932 A1 WO 2023240932A1 CN 2022134955 W CN2022134955 W CN 2022134955W WO 2023240932 A1 WO2023240932 A1 WO 2023240932A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide wheel
frame
seat frame
bracket
rear bracket
Prior art date
Application number
PCT/CN2022/134955
Other languages
English (en)
French (fr)
Inventor
马福生
石平中
秦超毅
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
Publication of WO2023240932A1 publication Critical patent/WO2023240932A1/zh

Links

Images

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
    • B62B7/044—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor three wheeled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B62B7/083—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis the wheel axes being moved from each other during folding

Definitions

  • the invention belongs to the technical field of children's products, and specifically relates to a baby carriage.
  • the object of the present invention is to provide a baby carriage with a more compact structure after folding.
  • a baby carriage including a frame with an unfolded state and a folded state, a front wheel assembly located below the front part of the frame, a left rear wheel assembly located below the rear part of the frame, and a
  • the right rear wheel assembly on the right side below the rear part of the frame, the frame has a virtual plane, the virtual plane is perpendicular to the horizontal plane, the left rear wheel assembly and the right rear wheel assembly Arranged symmetrically with respect to the virtual plane
  • the vehicle frame in the unfolded state includes: a seat frame for connecting a seat for children; a front bracket, and the front wheel assembly is arranged on the front bracket.
  • rear bracket the rear bracket includes a left rear bracket and a right rear bracket symmetrically arranged with respect to the virtual plane, the left rear wheel assembly is arranged at the lower part of the left rear bracket, the The right rear wheel assembly is arranged on the lower part of the right rear bracket, and the upper ends of the left rear bracket and the right rear bracket are slidingly connected to the seat frame respectively;
  • the sliding member the sliding member is slidably disposed on the seat frame along the front and rear direction of the seat frame;
  • a push rod frame the lower end of the push rod frame is rotatably connected to the sliding member;
  • a side connecting rod the The rear end of the side link is rotatably connected to the push rod frame.
  • the front end of the side link, the front end of the seat frame, and the upper end of the front bracket one component is pivotally connected to the other component, and the third component is also pivotally connected to at least one of the two components; the linkage lever, the front end of the linkage lever is connected to the The front bracket is rotatably connected, and the rear end of the linkage rod is rotatably connected with the sliding member.
  • the upper end of the left rear bracket and the upper end of the right rear bracket respectively slide forward and in a direction close to the virtual plane
  • the left rear wheel assembly located at the lower part of the left rear bracket and the right rear wheel assembly located at the lower part of the right rear bracket also move forward and in a direction close to the virtual plane respectively.
  • the rear wheel assembly moves closer to the seat frame in the front-rear and left-right directions at the same time, making the folded structure of the stroller more compact.
  • the folded vehicle can be smaller in volume. Easy to carry.
  • the sliding member is slidably disposed on the seat frame in a direction parallel to the virtual plane.
  • the sliding member includes a left sliding rod and a right sliding rod
  • the push rod frame includes a left push rod and a right push rod
  • the lower end of the left push rod rotates with the left sliding rod.
  • the lower end of the right push rod is rotationally connected to the right sliding rod;
  • the left sliding rod and the right sliding rod are respectively slidably arranged relative to the seat frame, and the The sliding directions of the left sliding rod and the right sliding rod are respectively parallel to the virtual plane.
  • the seat frame is provided with a left guide rail and a right guide rail respectively, and the left guide rail and the right guide rail are arranged symmetrically with respect to the virtual plane, and the left guide rail and the right guide rail are arranged symmetrically with respect to the virtual plane.
  • the distance between them in the left and right directions gradually becomes smaller from back to front.
  • the upper end of the left rear bracket is slidingly connected to the left guide rail.
  • the upper end of the right rear bracket is connected to the right guide rail. Phase sliding connection.
  • the left guide rail and the right guide rail are respectively provided at the bottom of the seat frame.
  • the stroller further includes a left linkage mechanism provided between the sliding member and the left rear bracket, and a right linkage mechanism provided between the sliding member and the right rear bracket. Linkage mechanism.
  • the sliding member slides backward along the seat frame, and the left linkage mechanism and the right linkage mechanism respectively drive the The upper end of the left rear bracket and the upper end of the right rear bracket slide forward along the left guide rail and the right guide rail.
  • the sliding member slides forward along the seat frame, and the left linkage mechanism drives the upper end of the left rear bracket along the The left guide rail slides forward, and the right linkage mechanism drives the upper end of the right rear bracket to slide backward along the right guide rail.
  • the left linkage mechanism and the right linkage mechanism are arranged symmetrically with respect to the virtual plane.
  • the left linkage mechanism includes a first traction cable and a first set of guide wheels that are pivotally mounted on the seat frame, and the first traction cable is wound around the third On a set of guide wheels, the sliding member and the left rear bracket are fixedly connected to the first traction cable respectively;
  • the right linkage mechanism includes a second traction cable and is pivoted on the The second set of guide wheels on the seat frame, the second traction rope is wound around the second set of guide wheels, the slider and the right rear bracket are respectively connected with the third set of guide wheels.
  • the two traction ropes are fixedly connected.
  • the first set of guide wheels includes a first guide wheel and a second guide wheel located on the rear left side of the seat frame, and a first guide wheel located on the front left side of the seat frame.
  • the third guide wheel, the fourth guide wheel and the fifth guide wheel, the rotation axis of the first guide wheel, the rotation axis of the third guide wheel and the rotation axis of the fourth guide wheel are respectively along the Extending in the up and down direction
  • the rotation axis of the second guide wheel and the rotation axis of the fifth guide wheel are respectively approximately perpendicular to the extension direction of the left guide rail and are respectively approximately perpendicular to the extension direction of the first guide wheel.
  • the axis of rotation, the first traction rope includes a first section of the first traction rope and a second section of the first traction rope, one end of the first section of the first traction rope is fixed to the front of the slider connection, the other end sequentially bypasses the first guide wheel and the second guide wheel and is fixedly connected to the upper end of the left rear bracket.
  • One end of the second section of the first traction cable It is fixedly connected to the front part of the sliding member, and the other end goes around the third guide wheel, the fourth guide wheel and the fifth guide wheel in sequence and then connects with the left rear bracket.
  • the upper ends are fixedly connected, and the first section of the first traction rope and the described second section of the first traction rope are provided independently, or the first section of the first traction rope and the described second section
  • the first traction ropes are connected end to end to form a closed structure.
  • the fifth guide wheel is located at the front of the left guide rail, and the second guide wheel is located at the rear of the left guide rail.
  • the second set of guide wheels includes a sixth guide wheel and a seventh guide wheel provided on the rear right side of the seat frame, and a seventh guide wheel provided on the front right side of the seat frame.
  • the eighth guide wheel, the ninth guide wheel and the tenth guide wheel, the rotation axis of the sixth guide wheel, the rotation axis of the eighth guide wheel and the rotation axis of the ninth guide wheel are respectively along the Extending in the up and down direction, the rotation axis of the seventh guide wheel and the rotation axis of the tenth guide wheel are respectively approximately perpendicular to the extension direction of the right guide rail and are respectively approximately perpendicular to the extension direction of the sixth guide wheel.
  • the rotation axis, the second traction rope includes a first section of the second traction rope and a second section of the second traction rope, one end of the first section of the second traction rope is fixed to the front part of the slider connection, the other end sequentially bypasses the sixth guide wheel and the seventh guide wheel and is fixedly connected to the upper end of the right rear bracket, and one end of the second section of the second traction cable is connected to the upper end of the right rear bracket.
  • the front part of the sliding member is fixedly connected, and the other end sequentially bypasses the eighth guide wheel, the ninth guide wheel and the tenth guide wheel and is connected to the upper end of the right rear bracket.
  • the second traction rope of the first section and the second traction rope of the second section are respectively arranged independently, or the second traction rope of the first section and the second traction rope of the second section are fixedly connected.
  • the two traction ropes are connected end to end to form a closed structure.
  • the tenth guide wheel is located at the front of the right guide rail, and the seventh guide wheel is located at the rear of the right guide rail.
  • the seat frame is plate-shaped and has an upper surface and a lower surface.
  • a receiving cavity extending in the front-to-back direction is opened between the upper surface and the lower surface, and at least part of the sliding member located in the accommodation cavity.
  • the rear end of the sliding member is pivotally connected to the lower end of the push rod frame.
  • the sliding member slides toward the front end of the seat frame, and the rear end of the seat frame is in contact with the push rod frame.
  • the distance between the lower ends gradually decreases.
  • the sliding member slides toward the rear end of the seat frame, and the rear end of the seat frame is in contact with the push rod.
  • the distance between the lower ends of the rack gradually increases.
  • the left sliding rod and the right sliding rod are arranged symmetrically with respect to the virtual plane and extend in the front and rear directions respectively.
  • the sliding member also includes a transverse connecting rod extending in the left and right direction, and the transverse connecting rod extends in the left and right direction. Both ends of the connecting rod are fixedly connected to the left sliding rod and the right sliding rod respectively, and the rear end of the linkage rod is pivotally connected to the middle part of the transverse connecting rod.
  • the left sliding rod and the right sliding rod are located in the accommodation cavity.
  • part of the sliding member extends rearwardly from the seat frame.
  • the push rod frame is turned forward and downward to move closer to the seat frame, and the front bracket is turned backward and upward to be closer to the seat frame.
  • Seat rack Folding or unfolding of the entire vehicle can be completed by operating only the push rod frame. Since the front and rear wheels are always supported on the ground during folding, the front and rear wheels can roll during folding, making folding easy.
  • the front wheel assembly when the vehicle frame is in a folded state, the front wheel assembly is located in the middle position between the left rear wheel assembly and the right rear wheel assembly.
  • the folded vehicle has a small volume and is convenient for storage. and transportation.
  • the contact point of the front wheel assembly, the contact point of the left rear wheel assembly, and the contact point of the right rear wheel assembly together form a support plane, and the support plane is used to support all
  • the vehicle frame described above has a small volume after being folded and can stand stably on a level ground.
  • the contact point of the front wheel assembly, the contact point of the left rear wheel assembly, and the contact point of the right rear wheel assembly are on the same straight line, and the front wheel assembly
  • the contact point, the contact point of the left rear wheel assembly, the straight line of the contact point of the right rear wheel assembly and the contact point of the slider and/or the push rod frame together form a On the support plane supporting the vehicle frame, the folded vehicle can stand stably on the horizontal ground.
  • the present invention has the following advantages compared with the prior art: when the stroller of the present invention is folded, the rear wheel assembly can be close to the seat frame in the front and rear directions and the left and right directions at the same time, and the folded structure is more compact , smaller in size.
  • Figure 1 is a perspective view of the stroller of this embodiment when the frame is in an unfolded state
  • Figure 2 is a rear view of the stroller of this embodiment when the frame is in an unfolded state
  • Figure 3 is a perspective view of the stroller of this embodiment when the frame is in a half-folded state
  • Figure 4 is a side view of the stroller of this embodiment when the frame is in a half-folded state
  • Figure 5 is a perspective view of the stroller of this embodiment when the frame is in a folded state
  • Figure 6 is a side view of the stroller of this embodiment when the frame is in a folded state
  • Figure 7 is a side view of the stroller of this embodiment when the frame is in the unfolded state (the left rear bracket and the left rear wheel assembly are not shown, and the seat frame is shown in a cross-sectional view);
  • Figure 8 is a side view of the stroller of this embodiment when the frame is in a semi-folded state (the left rear bracket and the left rear wheel assembly are not shown, and the seat frame is shown in a cross-sectional view);
  • Figure 9 is a side view of the stroller of this embodiment when the frame is in a folded state (the left rear bracket and left rear wheel assembly are not shown, and the seat frame is shown in a cross-sectional view);
  • Figure 10 is a side view of the partial structure of the stroller of this embodiment (showing the upper end of the seat frame and the left rear wheel bracket) when the frame is in the unfolded state;
  • Figure 11 is a bottom view of Figure 10
  • Figure 12 is a cross-sectional view along A-A of Figure 10.
  • Figure 13 is a cross-sectional view along B-B in Figure 10;
  • Figure 14 is a side view of the partial structure of the stroller of this embodiment (showing the upper end of the seat frame and the left rear wheel bracket) when the frame is in a folded state;
  • Figure 15 is a bottom view of Figure 14;
  • Figure 16 is a cross-sectional view along C-C of Figure 14;
  • Figure 17 is an exploded view of the partial structure shown in Figure 10;
  • Figure 18 is an exploded view of the partial structure shown in Figure 10 from another perspective;
  • Figure 19 is a perspective view of the left linkage mechanism in Figure 17;
  • the terms “front”, “rear”, “left” and “right” are all based on the fact that when the frame of the stroller is in an unfolded state, the child faces forward when riding the stroller.
  • the observed directions are defined by reference only to facilitate the description of the present invention and simplify the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Limitations on the invention.
  • the terms “first” and “second” are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.
  • the rotation axis of the guide wheel and the extension direction of the guide rail are generally perpendicular to each other. It means that the angle between the rotation axis of the guide wheel and the extension direction of the guide rail is in the range of 80° to 100°. Within this angle range Basically the same effect can be achieved.
  • the slidable connection between the upper end of the rear bracket and the seat frame includes one of the following three situations: the first situation is that a chute is provided below the seat frame, and the upper end of the rear bracket is inserted into In the chute and slidingly connected with it; in the second case, a sliding piece is pivotally connected to the upper end of the rear bracket, especially a sliding sleeve, and the sliding piece is slidingly connected to the seat frame; in the third case, in The upper end of the rear bracket is pivotally connected with rollers, and the rollers are slidingly connected along the tracks on the seat frame.
  • the embodiment provides a preferred implementation of a stroller.
  • the stroller in this embodiment is specifically a running bicycle.
  • the stroller includes a frame 1 with an unfolded state and a folded state, and a front wheel assembly 2 located under the front of the frame 1 , the left rear wheel assembly 3 is located on the lower left side of the rear of the frame 1, and the right rear wheel assembly 4 is located on the lower right side of the rear of the frame 1.
  • the frame 1 has a virtual plane 100, and the virtual plane 100 is perpendicular to the horizontal plane. , the left rear wheel assembly 3 and the right rear wheel assembly 4 are arranged symmetrically with respect to the virtual plane 100 .
  • the vehicle frame 1 includes a seat frame 11, a front bracket 12, a rear bracket, a sliding member 15, a push rod frame 16, a side link and a linkage rod 18.
  • the seat frame 11 When the vehicle frame 1 is in the unfolded state, the seat frame 11 extends in the front-to-back direction, and is used to connect the seat for children; the front bracket 12 extends upward from front to back, and the upper end of the front bracket 12 is connected to the seat frame 11 The front ends are rotationally connected, and the front wheel assembly 2 is arranged at the lower part of the front bracket 12; the rear bracket includes a left rear bracket 13 and a right rear bracket 14 that are symmetrically arranged relative to the virtual plane 100.
  • the left rear bracket 13 and the right rear bracket 14 are respectively connected from the front Extending obliquely backward and downward, the upper ends of the left rear bracket 13 and the right rear bracket 14 are slidingly connected to the bottom of the seat frame 11 respectively.
  • the left rear wheel assembly 3 is provided at the lower part of the left rear bracket 13, and the right rear wheel assembly 4 is provided At the lower part of the right rear bracket 14;
  • the sliding member 15 is slidably disposed on the seat frame 11 along the front and rear directions of the seat frame 11;
  • the push rod frame 16 extends upward obliquely from front to back, and the lower end of the push rod frame 16 is in contact with the sliding member 15
  • the rear end of the side link is rotatably connected to the middle part of the push rod frame 16, the front end of the side link is rotatably connected to the front of the seat frame 11, and the upper end of the front bracket 12 is rotatably connected to The front end of the seat frame 11 is rotationally connected.
  • the rotational connection relationship between the front end of the side link, the front end of the seat frame 11 and the upper end of the front bracket 12 can be adjusted, so that Two of the three front ends of the side link, the front end of the seat frame 11 and the upper end of the front bracket 12 are rotationally connected, and the third one is rotationally connected to one of the above two; the linkage rod 18
  • the front end is rotatably connected to the middle part of the front bracket 12, and the rear end is rotatably connected to the slider 15.
  • the upper end of the left rear bracket 13 and the upper end of the right rear bracket 14 respectively slide forward and in a direction close to the virtual plane 100 , and the The left rear wheel assembly 3 and the right rear wheel assembly 4 located at the lower part of the right rear bracket 14 also move forward and toward the virtual plane 100 respectively.
  • the push rod frame 16 has a left push rod 161 and a right push rod 162 respectively located on the left and right sides.
  • the left push rod 161 and the right push rod 162 respectively include a lower push rod and an upper push rod.
  • the left push rod 161 It includes a lower left push rod 1611 and an upper left push rod 1612 that are rotationally connected.
  • the right push rod 162 includes a lower right push rod 1621 and an upper right push rod that is rotationally connected.
  • the lower end of the lower push rod on each side is connected to the rear end of the slider 15 Partial phase rotation connection.
  • the side link includes a left link 171 and a right link 172 respectively located on the left and right sides.
  • the front end of the left link 171 is rotatably connected to the front left side of the seat frame 11, and the rear end of the left link 171 is connected to the front left side of the seat frame 11.
  • the end is rotatably connected to the middle part of the left lower push rod 1611; the front end of the right connecting rod 172 is rotatably connected to the front right side of the seat frame 11, and the rear end of the right connecting rod 172 is connected to the right lower push rod 1621.
  • the middle phase is connected by rotation.
  • the seat frame 11 is plate-shaped and has an upper surface and a lower surface.
  • An accommodation cavity 111 extending in the front-to-back direction is opened between the upper surface and the lower surface. At least part of the slider 15 is located in the accommodation cavity 111. .
  • the left guide rail 51 and the right guide rail 52 are symmetrically arranged on the seat frame 11 relative to the virtual plane 100. The distance between the left guide rail 51 and the right guide rail 52 in the left-right direction gradually becomes smaller from back to front.
  • the upper end of the left rear bracket 13 is in contact with the left
  • the guide rail 51 is slidably connected, and the upper end of the right rear bracket 14 is slidably connected with the right guide rail 52 .
  • the sliding member 15 when the frame 1 is in the unfolded state, the sliding member 15 extends in the front-rear direction, and the rear end of the sliding member 15 is pivotally connected to the lower end of the push rod frame.
  • the left guide rail 51 and the right guide rail 52 are both provided at the bottom of the seat frame 11 .
  • the pivotal connection between the sliding member 15 and the push rod frame 16 exposes the receiving cavity 111 of the seat frame 11 , and the lower end of the push rod frame 16 is close to the rear end of the seat frame 11 .
  • the push rod frame 16 When the frame 1 is transformed from the unfolded state to the folded state, the push rod frame 16 is flipped forward and downward to move closer to the seat frame 11, the sliding member 15 extends backward toward the seat frame 11, and the front bracket 12 is flipped backward and upward to move closer to the seat frame 11.
  • the stroller further includes a left linkage mechanism 61 provided between the sliding member 15 and the left rear bracket 13 , and a right linkage mechanism 62 provided between the sliding member 15 and the right rear bracket 14 .
  • the sliding member 15 slides backward along the seat frame 11, and the left linkage mechanism 61 drives the upper end of the left rear bracket 13 to slide forward along the left guide rail 51, and the right linkage mechanism 61
  • the mechanism 62 drives the upper end of the right rear bracket 14 to slide forward along the right guide rail 52; in the process of converting the frame 1 from the folded state to the unfolded state, the sliding member 15 slides forward along the seat frame 11, and the left linkage mechanism 61
  • the upper end of the left rear bracket 13 is driven to slide backward along the left guide rail 51
  • the right linkage mechanism 62 drives the upper end of the right rear bracket 14 to slide backward along the right guide rail 52 .
  • the left linkage mechanism 61 and the right linkage mechanism 62 are arranged symmetrically with respect to the virtual plane 100 .
  • the left linkage mechanism 61 includes a first traction cable and a third linkage pivoted on the seat frame 11 .
  • a set of guide wheels, the first traction rope is wound around the first set of guide wheels, and the sliding member 15 and the left rear bracket 13 are respectively fixedly connected to the first traction rope;
  • the right linkage mechanism 62 includes a second traction rope and a pivot setting
  • the second set of guide wheels on the seat frame 11, the second traction cable is wound around the second set of guide wheels, and the sliding member 15 and the right rear bracket 14 are fixedly connected to the second traction cable respectively.
  • the first traction cable and the second traction cable are always in a tightened state.
  • the first set of guide wheels includes a first guide wheel 613 and a second guide wheel 614 located on the rear left side of the seat frame 11 , and a third guide wheel 615 located on the front left side of the seat frame 11 , the fourth guide wheel 616 and the fifth guide wheel 617, the rotation axis of the first guide wheel 613, the rotation axis of the third guide wheel 615 and the rotation axis of the fourth guide wheel 616 respectively extend in the up and down direction, and the second guide wheel 614
  • the rotation axis and the rotation axis of the fifth guide wheel 617 are respectively approximately perpendicular to the extension direction of the left guide rail 51 and are respectively approximately perpendicular to the rotation axis of the first guide wheel 613.
  • the first traction cable includes a first section of the first traction cable 611 and The second first traction rope 612, one end of the first section of the first traction rope 611 is fixedly connected to the front of the sliding member 15, and the other end sequentially bypasses the first guide wheel 613 and the second guide wheel 614 to the rear and left
  • the upper end of the bracket 13 is fixedly connected, one end of the second section of the first traction cable 612 is fixedly connected to the front of the sliding member 15, and the other end goes around the third guide wheel 615, the fourth guide wheel 616 and the fifth guide wheel in sequence.
  • the wheel 617 is fixedly connected to the upper end of the left rear bracket 13.
  • the fifth guide wheel 617 is located at the front of the left guide rail 51
  • the second guide wheel 614 is located at the rear of the left guide rail 51 .
  • the first section of the first traction rope 611 and the second section of the first traction rope 612 are arranged independently of each other. In other embodiments, the first section of the first traction rope 611 and the second section of the first traction rope 612 can also be arranged end to end. connected to form a closed structure.
  • the second set of guide wheels includes a sixth guide wheel 623 and a seventh guide wheel 624 provided on the rear right side of the seat frame 11 , and an eighth guide wheel 625 provided on the front right side of the seat frame 11 , the ninth guide wheel 626 and the tenth guide wheel 627, the rotation axis of the sixth guide wheel 623, the rotation axis of the eighth guide wheel 625 and the rotation axis of the ninth guide wheel 626 respectively extend in the up and down direction, and the seventh guide wheel 624
  • the rotation axis of the tenth guide wheel 627 and the rotation axis of the tenth guide wheel 627 are respectively substantially perpendicular to the extension direction of the right guide rail 52 and respectively substantially perpendicular to the sixth guide wheel 623.
  • the second traction cable includes a first section, a second traction cable 621 and a second section.
  • the second traction cable 622 has one end of the first section of the second traction cable 621 fixedly connected to the front of the sliding member 15, and the other end of the second traction cable 622, which is connected to the right rear bracket 14 after sequentially bypassing the sixth guide wheel 623 and the seventh guide wheel 624.
  • the upper end is fixedly connected, one end of the second section of the second traction cable 622 is fixedly connected to the front of the sliding member 15, and the other end is sequentially bypassed by the eighth guide wheel 625, the ninth guide wheel 626 and the tenth guide wheel 627. Fixedly connected to the upper end of the right rear bracket 14.
  • the tenth guide wheel 627 is located at the front of the right guide rail 52
  • the seventh guide wheel 624 is located at the rear of the right guide rail 52 .
  • the first section of the second traction rope 621 and the second section of the second traction rope 622 are arranged independently of each other. In other embodiments, the first section of the second traction rope 621 and the second section of the second traction rope 622 They can also be connected end to end to form a closed structure.
  • the sliding member 15 includes a left sliding rod 151 and a right sliding rod 152 that are symmetrically arranged relative to the virtual plane 100 and extend in the front and rear directions respectively.
  • the left sliding rod 151 and the right sliding rod 152 are located in the accommodation cavity 111 .
  • the sliding member 15 also includes a horizontal connecting rod 153 extending in the left and right direction. Both ends of the horizontal connecting rod 153 are fixedly connected to the left sliding rod 151 and the right sliding rod 152 respectively.
  • the front bracket 12 includes a left front bracket and a right front bracket arranged on the left and right sides of the front wheel assembly 2.
  • the upper end of the left front bracket is rotationally connected to the left front end of the seat frame 11, and the upper end of the right front bracket is connected to the right front end of the seat frame 11.
  • the front bracket 12 also includes a step plate fixedly arranged between the left front bracket and the right front bracket.
  • the linkage rod 18 is arranged on the virtual plane 100.
  • the front end of the linkage rod 18 is pivotally connected to the step plate.
  • the linkage rod 18 is pivotally connected to the step plate.
  • the rear end of the rod 18 is pivotally connected to the middle part of the cross-link 153.
  • the movements of the right rear brackets 14 do not interfere with each other.
  • the first traction cable is arranged between the left sliding rod 151 and the left rear bracket 13.
  • One end of the first traction cable 611 is fixedly connected to the front of the left sliding rod 151, and the other end goes around the first guide wheel 613.
  • the second guide wheel 614 is fixedly connected to the upper end of the left rear bracket 13.
  • One end of the second section of the first traction cable 612 is fixedly connected to the front of the left sliding rod 151, and the other end is in turn around the third guide wheel. 615.
  • the fourth guide wheel 616 and the fifth guide wheel 617 are fixedly connected to the upper end of the left rear bracket 13.
  • the second traction cable is arranged between the right sliding rod 152 and the right rear bracket 14.
  • the seventh guide wheel 624 is fixedly connected to the upper end of the right rear bracket 14.
  • One end of the second section of the second traction cable 622 is fixedly connected to the front of the right sliding rod 152, and the other end goes around the eighth guide wheel in turn. 625.
  • the ninth guide wheel 626 and the tenth guide wheel 627 are fixedly connected to the upper end of the right rear bracket 14.
  • the sliding member 15 passes through the linkage mechanism
  • the upper parts of the left rear bracket 13 and the right rear bracket 14 are respectively driven to slide forward from the rear end of the seat frame 11 on the seat frame 11 and in a direction close to the virtual plane 100, so that the left rear wheel assembly 3 and the right rear wheel assembly 4
  • the vehicle frame 1 approaches the seat frame 11 in both the front-rear direction and the left-right direction.
  • the front wheel assembly 2 When the vehicle frame 1 is in the folded state, the front wheel assembly 2 is located in the middle position between the left rear wheel assembly 3 and the right rear wheel assembly 4.
  • the contact points of the front wheel assembly 2, the contact points of the left rear wheel assembly 3, and the right rear wheel assembly are The contact points of the wheel assemblies 4 together form a support plane, which is used to support the frame 1 so that the folded stroller can stand stably on a horizontal ground.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

一种童车，包括具有展开状态与折叠状态的车架（1）、前轮组件（2）、左后轮组件（3）、右后轮组件（4），车架具有一个垂直于水平面的虚拟平面（100），左后轮组件（3）和右后轮组件（4）相对于虚拟平面（100）对称设置，车架（1）还包括相对于虚拟平面对称设置的左后支架（13）和右后支架（14），左后轮组件（3）设于左后支架（13）的下部，右后轮组件（4）设于右后支架（14）的下部，左后支架（13）和右后支架（14）的上端部分别与座位架（11）相滑动连接，在车架（1）由展开状态向折叠状态转换的过程中，左后支架（13）的上端部和右后支架（14）的上端部分别向前且向靠近虚拟平面的方向滑动，带动左后轮组件（3）和右后轮组件（4）也分别向前且向靠近虚拟平面的方向移动。该童车折叠后的结构更加紧凑，体积更小，携带更方便。

Description

一种童车 技术领域
本发明属于儿童用品技术领域，具体涉及一种童车。
背景技术
市面上有一款童车，其具有一个前轮和两个后轮，可为儿童进行户外活动提供很大的便利。但是该童车折叠后结构不够紧凑，包装运输体积较大，且不太方便携带。
发明内容
本发明的目的是提供一种折叠后结构更加紧凑的童车。
为达到上述目的，本发明采用的技术方案是：
一种童车，包括具有展开状态与折叠状态的车架、设于所述的车架前部下方的前轮组件、设于所述的车架后部下方左侧的左后轮组件、设于所述的车架后部下方右侧的右后轮组件，所述的车架具有一个虚拟平面，所述的虚拟平面垂直于水平面，所述的左后轮组件和所述的右后轮组件相对于所述的虚拟平面对称设置，所述的车架在展开状态下包括：座位架，用于连接供儿童乘坐的座位；前支架，所述的前轮组件设置于所述的前支架的下部；后支架，所述的后支架包括相对于所述的虚拟平面对称设置的左后支架和右后支架，所述的左后轮组件设置于所述的左后支架的下部，所述的右后轮组件设置于所述的右后支架的下部，所述的左后支架和所述的右后支架的上端部分别与所述的座位架相滑动连接；滑动件，所述的滑动件沿所述的座位架的前后方向可滑动地设置在所述的座位架上；推杆架，所述的推杆架的下端部与所述的滑动件相转动连接；侧连杆，所述的侧连杆的后端部与所述的推杆架相转动连接，所述的侧连杆的前端部、所述的座位架的前端部、所述的前支架的上端部三个部件中，其中一个部件与另一个部件枢轴转动连接，第三个部件与所述的两个部件中的至少一个部件也枢轴转动连接；联动杆，所述的联动杆的前端部与所述的前支架相转动连接，所述的联动杆的后端部与所述的滑动件相转动连接。
在所述的车架由展开状态向折叠状态转换的过程中，所述的左后支架的上端部和所述的右后支架的上端部分别向前且向靠近所述的虚拟平面的方向滑动，位于左后支架下部的左后轮组件和位于右后支架下部的右后轮组件也分别向前且向靠近所述的虚拟平面的方向移动。
本发明的童车折叠时，后轮组件在前后方向和左右方向上同时向座位架靠拢，使童车折叠后的结构更加紧凑，相比现有技术，折叠后的整车体积可以做到更小，便于携带。
优选地，所述的滑动件沿所述的虚拟平面相平行的方向可滑动地设置在所述的座位架上。
优选地，所述的滑动件包括左滑动杆和右滑动杆，所述的推杆架包括左推杆和右推杆，所述的左推杆的下端部与所述的左滑动杆相转动连接，所述的右推杆的下端部与所述的右滑 动杆相转动连接；所述的左滑动杆与所述的右滑动杆分别相对于所述的座位架可滑动地设置，所述的左滑动杆与所述的右滑动杆的滑动方向分别平行于所述的虚拟平面。
优选地，所述的座位架上分别设有左导轨和右导轨，所述的左导轨和所述的右导轨相对于所述的虚拟平面对称设置，所述的左导轨与所述的右导轨之间在左右方向上的距离自后向前逐渐变小，所述的左后支架的上端部与所述的左导轨相滑动连接，所述的右后支架的上端部与所述的右导轨相滑动连接。
进一步优选地，所述的左导轨和所述的右导轨分别设置于所述的座位架的底部。
进一步优选地，所述的童车还包括设置在所述的滑动件与所述的左后支架之间的左联动机构、以及设置在所述的滑动件与所述的右后支架之间的右联动机构。
在所述的车架由展开状态向折叠状态转换的过程中，所述的滑动件沿着所述的座位架向后滑动，所述的左联动机构和所述的右联动机构分别带动所述的左后支架的上端部及所述的右后支架的上端部沿着所述的左导轨和右导轨向前滑动。
在所述的车架由折叠状态向打开状态转换的过程中，所述的滑动件沿着所述的座位架向前滑动，所述的左联动机构带动所述的左后支架的上端部沿着所述的左导轨向前滑动，所述的右联动机构带动所述的右后支架的上端部沿着所述的右导轨向后滑动。
进一步优选地，所述的左联动机构和所述的右联动机构相对于所述的虚拟平面对称设置。
更进一步优选地，所述的左联动机构包括第一牵引索和通过枢轴转动设置于所述的座位架上的第一组导向轮，所述的第一牵引索绕设在所述的第一组导向轮上，所述的滑动件和所述的左后支架分别与所述的第一牵引索相固定连接；所述的右联动机构包括第二牵引索和通过枢轴转动设置于所述的座位架上的第二组导向轮，所述的第二牵引索绕设在所述的第二组导向轮上，所述的滑动件和所述的右后支架分别与所述的第二牵引索相固定连接。
在所述的滑动件和所述的左后支架相对运动，以及所述的滑动件和所述的右后支架相对运动的过程中，所述的第一牵引索和所述的第二牵引索始终处于拉紧的状态。
再进一步优选地，所述的第一组导向轮包括设于所述的座位架的后部左侧的第一导向轮和第二导向轮、以及设于所述的座位架的前部左侧的第三导向轮、第四导向轮和第五导向轮，所述的第一导向轮的转动轴线、所述的第三导向轮的转动轴线和所述的第四导向轮的转动轴线分别沿上下方向延伸，所述的第二导向轮的转动轴线和所述的第五导向轮的转动轴线分别大致垂直于所述的左导轨的延伸方向且分别大致垂直于所述的第一导向轮的转动轴线，所述的第一牵引索包括第一段第一牵引索和第二段第一牵引索，所述的第一段第一牵引索的一端与所述的滑动件的前部相固定连接，另一端依次绕过所述的第一导向轮和所述的第二导向轮后与所述的左后支架的上端部相固定连接，所述的第二段第一牵引索的的一端与所述的滑动 件的前部相固定连接，另一端依次绕过所述的第三导向轮、所述的第四导向轮和所述的第五导向轮后与所述的左后支架的上端部相固定连接，所述的第一段第一牵引索和所述的第二段第一牵引索分别独立地设置，或所述的第一段第一牵引索和所述的第二段第一牵引索首尾相连形成封闭结构。
更进一步优选地，所述的第五导向轮位于所述的左导轨的前部，所述的第二导向轮位于所述的左导轨的后部。
再进一步优选地，所述的第二组导向轮包括设置在所述的座位架的后部右侧的第六导向轮和第七导向轮、以及设置在所述的座位架的前部右侧的第八导向轮、第九导向轮和第十导向轮，所述的第六导向轮的转动轴线、所述的第八导向轮的转动轴线和所述的第九导向轮的转动轴线分别沿上下方向延伸，所述的第七导向轮的转动轴线和所述的第十导向轮的转动轴线分别大致垂直于所述的右导轨的延伸方向且分别大致垂直于所述的第六导向轮的转动轴线，所述的第二牵引索包括第一段第二牵引索和第二段第二牵引索，所述的第一段第二牵引索的一端与所述的滑动件的前部相固定连接，另一端依次绕过所述的第六导向轮和所述的第七导向轮后与所述的右后支架的上端部相固定连接，所述的第二段第二牵引索的一端与所述的滑动件的前部相固定连接，另一端依次绕过所述的第八导向轮、所述的第九导向轮和所述的第十导向轮后与所述的右后支架的上端部相固定连接，所述的第一段第二牵引索和所述的第二段第二牵引索分别独立地设置，或所述的第一段第二牵引索和所述的第二段第二牵引索首尾相连形成封闭结构。
更进一步优选地，所述的第十导向轮位于所述的右导轨的前部，所述的第七导向轮位于所述的右导轨的后部。
优选地，所述的座位架为板状，其具有上表面和下表面，所述的上表面和所述的下表面之间开有沿前后方向延伸的容纳腔，至少部分所述的滑动件位于所述的容纳腔中。
进一步优选地，所述的滑动件的后端部与所述的推杆架的下端部相枢轴转动连接。在所述的车架由折叠状态向展开状态转换的过程中，所述的滑动件向所述的座位架的前端部滑动，所述的座位架的后端部和与所述的推杆架的下端部之间的距离逐渐减小。在所述的车架由展开状态向折叠状态转换的过程中，所述的滑动件向所述的座位架的后端部滑动，所述的座位架的后端部和与所述的推杆架的下端部之间的距离逐渐增大。
进一步优选地，所述的左滑动杆和右滑动杆相对于所述的虚拟平面对称设置并分别沿前后方向延伸，所述的滑动件还包括沿左右方向延伸的横连杆，所述的横连杆的两端分别与所述的左滑动杆和所述的右滑动杆相固定连接，所述的联动杆的后端部与所述的横连杆的中部相枢轴连接，此设置能够在童车的折叠过程中，避免联动杆的运动阻碍左后支架和右后支架 在座位架上的滑动。
再进一步优选地，所述的左滑动杆和所述的右滑动杆都位于所述的容纳腔内。
优选地，在所述的车架由展开状态向折叠状态转换的过程中，部分所述的滑动件向后伸出所述的座位架。
优选地，在所述的车架由展开状态向折叠状态转换的过程中，所述的推杆架向前下方翻转靠拢所述的座位架，所述的前支架向后上方翻转靠拢所述的座位架。整车折叠或打开的操作仅操作推杆架即可完成，由于折叠时前轮和后轮始终支撑于地面上，折叠时前后轮可以滚动，折叠轻松。
优选地，在所述的车架处于折叠状态时，所述的前轮组件位于所述的左后轮组件和所述的右后轮组件之间的中间位置整车折叠后体积小，方便收纳和运输。在一些实施例中，所述的前轮组件的触地点、所述的左后轮组件的触地点、所述的右后轮组件的触地点共同构成一个支撑平面，该支撑平面用于支撑所述的车架，整车折叠后体积小且可稳定地立于水平地面上。在另一些实施例中，所述的前轮组件的触地点、所述的左后轮组件的触地点、所述的右后轮组件的触地点在同一直线上，且所述的前轮组件的触地点、所述的左后轮组件的触地点、所述的右后轮组件的触地点所在的直线和所述的滑动件和/或所述的推杆架的触地点共同构成一个用于支撑所述的车架的支撑平面，使折叠后的整车可稳定地立于水平地面上。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：本发明的童车在折叠时，后轮组件能够同时在前后方向上和左右方向上与座位架靠拢，折叠后的结构更加紧凑，体积更小。
附图说明
图1为本实施例的童车在车架处于展开状态时的立体图；
图2为本实施例的童车在车架处于展开状态时的后视图；
图3为本实施例的童车在车架处于半折叠状态时的立体图；
图4为本实施例的童车在车架处于半折叠状态时的侧视图；
图5为本实施例的童车在车架处于折叠状态时的立体图；
图6为本实施例的童车在车架处于折叠状态时的侧视图；
图7为本实施例的童车在车架处于展开状态时的侧视图(左后支架和左后轮组件未显示，座位架显示剖视图)；
图8为本实施例的童车在车架处于半折叠状态时的侧视图(左后支架和左后轮组件未显示，座位架显示剖视图)；
图9为本实施例的童车在车架处于折叠状态时的侧视图(左后支架和左后轮组件未显示， 座位架显示剖视图)；
图10为本实施例的童车在车架处于展开状态时的局部结构(显示座位架和左后轮支架的上端部)的侧视图；
图11为图10的仰视图；
图12为图10沿A-A的剖视图；
图13为图10沿B-B的剖视图；
图14为本实施例的童车在车架处于折叠状态时的局部结构(显示座位架和左后轮支架的上端部)的侧视图；
图15为图14的仰视图；
图16为图14沿C-C的剖视图；
图17为图10所示的局部结构的爆炸图；
图18为图10所示的局部结构在另一视角下的爆炸图；
图19为图17中的左联动机构的立体图；
以上附图中，
100、虚拟平面；
1、车架；11、座位架；111、容纳腔；12、前支架；13、左后支架；14、右后支架，15、滑动件；151、左滑动杆；152、右滑动杆；153、横连杆；16、推杆架；161、左推杆；1611、左下推杆；1612、左上推杆；162、右推杆；1621、右下推杆；1622、右上推杆；171、左侧连杆；172、右侧连杆；18、联动杆；
2、前轮组件；
3、左后轮组件；
4、右后轮组件；
51、左导轨；52、右导轨；
61、左联动机构；611、第一段第一牵引索；612、第二段第一牵引索；613、第一导向轮；614、第二导向轮；615、第三导向轮；616、第四导向轮；617、第五导向轮；62、右联动机构；621、第一段第二牵引索；622、第二段第二牵引索；623、第六导向轮；624、第七导向轮；625、第八导向轮；626、第九导向轮；627、第十导向轮。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“前”、“后”、“左”、“右”均是按照该童车的车架处于展开状态下，儿童乘坐该童车时，面朝前所观察到的方向予以参考定义的，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，导向轮的转动轴线和导轨的延伸方向大致垂直是指：导向轮的转动轴线和导轨的延伸方向的夹角的角度在80°～100°范围内，在此角度范围内基本能够达到相同的效果。
在本发明的描述中，后支架的上端部与座位架的可滑动连接包括下列三种情形之一：第一种情形是，在座位架的下方设置有滑槽，后支架的上端部插在滑槽中并与之相滑动连接；第二种情形是，在后支架的上端部枢轴连接有滑动件，特别是选用滑套，滑动件与座位架滑动连接；第三种情形是，在后支架的上端部枢轴连接有滚轮，滚轮沿着座位架上的轨道相滑动连接。
在本发明的描述中，如无特殊的说明，均是以车架1处于展开状态时进行描述的。
实施例提供一种童车的优选实施方式，本实施例中的儿童车具体为跑步车，该童车包括具有展开状态与折叠状态的车架1、设于车架1前部下方的前轮组件2、设于车架1后部下方左侧的左后轮组件3、设于车架1后部下方右侧的右后轮组件4，车架1具有一个虚拟平面100，虚拟平面100垂直于水平面，左后轮组件3和右后轮组件4相对于虚拟平面100对称设置。
参见图1至图9，车架1包括座位架11、前支架12、后支架、滑动件15、推杆架16、侧连杆以及联动杆18。在车架1处于展开状态时，座位架11沿前后方向延伸，座位架11用于连接供儿童乘坐的座位；前支架12自前向后向上倾斜延伸，前支架12的上端部与座位架11的前端部相转动连接，前轮组件2设置于前支架12的下部；后支架包括相对于虚拟平面100对称设置的左后支架13和右后支架14，左后支架13和右后支架14分别自前向后向下倾斜延伸，左后支架13和右后支架14的上端部分别与座位架11的底部相滑动连接，左后轮组件3设置于左后支架13的下部，右后轮组件4设置于右后支架14的下部；滑动件15沿座位架11的前后方向可滑动地设置在座位架11上；推杆架16自前向后向上倾斜延伸，推杆架16的下端部与滑动件15的后端部相转动连接；侧连杆的后端部与推杆架16的中部相转动连接，侧连杆的前端部与座位架11的前部相转动连接，前支架12的上端部与座位架11的前端部相转动连接，在其他实施例中，侧连杆的前端部、座位架11的前端部、前支架12的上端部这三者之间的转动连接关系可进行调整，使得侧连杆的前端部、座位架11的前端部、前支架12的上端部这三者中的两者相转动连接，且第三者与前述两者中的一者相转动连接；联动杆18的前端部与前支架12的中部相转动 连接，后端部与滑动件15相转动连接。
在车架1由展开状态向折叠状态转换的过程中，左后支架13的上端部和右后支架14的上端部分别向前且向靠近虚拟平面100的方向滑动，位于左后支架13下部的左后轮组件3和位于右后支架14下部的右后轮组件4也分别向前且向靠近所述的虚拟平面100的方向移动。
本实施例中，推杆架16具有分设于左右两侧的左推杆161和右推杆162，左推杆161和右推杆162分别包括下推杆和上推杆，其中左推杆161包括转动连接的左下推杆1611与左上推杆1612，右推杆162包括转动连接的右下推杆1621与右上推杆1622，每侧的下推杆的下端部均与滑动件15的后端部相转动连接。侧连杆包括分设于左右两侧的左侧连杆171和右侧连杆172，左侧连杆171的前端部与座位架11的前部左侧相转动连接，左侧连杆171的后端部与左下推杆1611的中部相转动连接；右侧连杆172的前端部与座位架11的前部右侧相转动连接，右侧连杆172的后端部与右下推杆1621的中部相转动连接。
具体地，参见图8，座位架11为板状，其具有上表面和下表面，上表面和下表面之间开有沿前后方向延伸的容纳腔111，至少部分滑动件15位于容纳腔111中。在车架1由展开状态向折叠状态转换的过程中，滑动件15向后滑动使该部分滑动件15向后伸出座位架11。座位架11上相对虚拟平面100对称设置左导轨51和右导轨52，左导轨51与右导轨52之间在左右方向上的距离自后向前逐渐变小，左后支架13的上端部与左导轨51相滑动连接，右后支架14的上端部与右导轨52相滑动连接。
本实施例中，参见图7至图9，车架1在展开状态时，滑动件15沿前后方向延伸，滑动件15的后端部与推杆架的下端部枢轴连接。左导轨51和右导轨52均设置在座位架11的底部。在车架1处于展开状态时，滑动件15与推杆架16的枢轴连接部位露出座位架11的容纳腔111，推杆架16的下端部与座位架11的后端部靠近。车架1由展开状态向折叠状态转换的过程中，推杆架16向前下方翻转靠拢座位架11，滑动件15向后伸出座位架11，前支架12向后上方翻转靠拢座位架11。
具体地，童车还包括设置在滑动件15与左后支架13之间的左联动机构61、以及设置在滑动件15与右后支架14之间的右联动机构62。在车架1由展开状态向折叠状态转换的过程中，滑动件15沿着座位架11向后滑动，左联动机构61带动左后支架13的上端部沿着左导轨51向前滑动，右联动机构62带动右后支架14的上端部沿着右导轨52向前滑动；在车架1由折叠状态向展开状态转换的过程中，滑动件15沿着座位架11向前滑动，左联动机构61带动左后支架13的上端部沿着左导轨51向后滑动，右联动机构62带动右后支架14的上端部沿着右导轨52向后滑动。
在本实施例中，参见图11至图19，左联动机构61和右联动机构62相对于虚拟平面100对称设置，左联动机构61包括第一牵引索和枢轴设置于座位架11上的第一组导向轮，第一牵引索 绕设在第一组导向轮上且滑动件15和左后支架13分别与第一牵引索相固定连接；右联动机构62包括第二牵引索和枢轴设置于座位架11上的第二组导向轮，第二牵引索绕设在第二组导向轮上且滑动件15和右后支架14分别与第二牵引索相固定连接，在滑动件15和左后支架13相对运动的过程中，第一牵引索和第二牵引索始终处于拉紧的状态。
更具体地，第一组导向轮包括设于座位架11的后部左侧的第一导向轮613和第二导向轮614、以及设于座位架11的前部左侧的第三导向轮615、第四导向轮616和第五导向轮617，第一导向轮613的转动轴线、第三导向轮615的转动轴线和第四导向轮616的转动轴线分别沿上下方向延伸，第二导向轮614的转动轴线和第五导向轮617的转动轴线分别大致垂直于左导轨51的延伸方向且分别大致垂直于第一导向轮613的转动轴线，第一牵引索包括第一段第一牵引索611和第二条第一牵引索612，第一段第一牵引索611的一端与滑动件15的前部相固定连接，另一端依次绕过第一导向轮613和第二导向轮614后与左后支架13的上端部相固定连接，第二段第一牵引索612的一端与滑动件15的前部相固定连接，另一端依次绕过第三导向轮615、第四导向轮616和第五导向轮617后与左后支架13的上端部相固定连接。本实施例中，第五导向轮617位于左导轨51的前部，第二导向轮614位于左导轨51的后部。本实施例中，第一段第一牵引索611和第二段第一牵引索612相互独立地设置，在其他实施方式中，第一牵引索611和第二段第一牵引索612也可以首尾相连形成封闭结构。
更具体地，第二组导向轮包括设置在座位架11的后部右侧的第六导向轮623和第七导向轮624、以及设置在座位架11的前部右侧的第八导向轮625、第九导向轮626和第十导向轮627，第六导向轮623的转动轴线、第八导向轮625的转动轴线和第九导向轮626的转动轴线分别沿上下方向延伸，第七导向轮624的转动轴线和第十导向轮627的转动轴线分别大致垂直于右导轨52的延伸方向且分别大致垂直于第六导向轮623，第二牵引索包括第一段第二牵引索621和第二段第二牵引索622，第一段第二牵引索621的一端与滑动件15的前部相固定连接，另一端依次绕过第六导向轮623和第七导向轮624后与右后支架14的上端部相固定连接，第二段第二牵引索622的一端与滑动件15的前部相固定连接，另一端依次绕过第八导向轮625、第九导向轮626和第十导向轮627后与右后支架14的上端部相固定连接。本实施例中，第十导向轮627位于右导轨52的前部，第七导向轮624位于右导轨52的后部。本实施例中，第一段第二牵引索621和第二段第二牵引索622相互独立地设置，在其他实施方式中，第一段第二牵引索621和第二段第二牵引索622也可以首尾相连形成封闭结构。
本实施例中，参见图13、图15、图16～图18，滑动件15包括相对于虚拟平面100对称设置并分别沿前后方向延伸的左滑动杆151和右滑动杆152，左滑动杆151和右滑动杆152都位于容纳腔111内。滑动件15还包括沿左右方向延伸的横连杆153，横连杆153的两端部分别与左滑动 杆151和右滑动杆152相固定连接。前支架12包括设置在前轮组件2的左右两侧的左前支架和右前支架，左前支架的上端部与座位架11的左前端部相转动连接，右前支架的上端部与座位架11的右前端部相转动连接，前支架12还包括固定设置在左前支架和右前支架之间的踏脚板，联动杆18设置于虚拟平面100上，联动杆18的前端部与踏脚板相枢轴转动连接，联动杆18的后端部与横连杆153的中部相枢轴连接，车架11在展开状态和折叠状态之间相互转换时，联动杆18始终在虚拟平面100上运动，与左后支架13和右后支架14的运动互不干涉。第一牵引索设置在左滑动杆151和左后支架13之间，第一段第一牵引索611的一端与左滑动杆151的前部相固定连接，另一端依次绕过第一导向轮613和第二导向轮614后与左后支架13的上端部相固定连接，第二段第一牵引索612的一端与左滑动杆151的前部相固定连接，另一端依次绕过第三导向轮615、第四导向轮616和第五导向轮617后与左后支架13的上端部相固定连接。第二牵引索设置在右滑动杆152和右后支架14之间，第一段第二牵引索621的一端与右滑动杆152的前部相固定连接，另一端依次绕过第六导向轮623和第七导向轮624后与右后支架14的上端部相固定连接，第二段第二牵引索622的一端与右滑动杆152的前部相固定连接，另一端依次绕过第八导向轮625、第九导向轮626和第十导向轮627后与右后支架14的上端部相固定连接。本实施例中，当车架1处于展开状态时，横连杆153处于座位架11的容纳腔111中且处于座位架11的中部，当车架1处于折叠状态时，横连杆153露出座位架11的后端部。
实施例的童车的折叠原理：
当车架1由展开状态向折叠状态转换时，先将上推杆向后下方翻转与下推杆靠拢，然后将下推杆的上部向前下方翻转，带动滑动件15相对座位架11向后滑动，滑动件15带动联动杆18相对座位架11向后滑动，联动杆18带动前支架12向后上方翻转，使前轮组件2向座位架11的下方靠拢，同时，滑动件15通过联动机构分别带动左后支架13和右后支架14的上部在座位架11上自座位架11的后端部向前且向靠近虚拟平面100的方向滑动，使左后轮组件3和右后轮组件4在车架1的前后方向和左右方向上均向座位架11靠近。
在车架1处于折叠状态时，前轮组件2位于左后轮组件3和右后轮组件4之间的中间位置，前轮组件2的触地点、左后轮组件3的触地点、右后轮组件4的触地点共同构成一个支撑平面，该支撑平面用于支撑车架1，使折叠后的童车稳定地立于水平地面上。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (15)

  1. 一种童车，包括具有展开状态与折叠状态的车架、设于所述的车架前部下方的前轮组件、设于所述的车架后部下方左侧的左后轮组件、设于所述的车架后部下方右侧的右后轮组件，所述的车架具有一个虚拟平面，所述的虚拟平面垂直于水平面，所述的左后轮组件和所述的右后轮组件相对于所述的虚拟平面对称设置，其特征在于：所述的车架在展开状态下包括：
    座位架，用于连接供儿童乘坐的座位；
    前支架，所述的前轮组件设置于所述的前支架的下部；
    后支架，所述的后支架包括相对于所述的虚拟平面对称设置的左后支架和右后支架，所述的左后轮组件设置于所述的左后支架的下部，所述的右后轮组件设置于所述的右后支架的下部，所述的左后支架和所述的右后支架的上端部分别与所述的座位架相滑动连接；
    滑动件，所述的滑动件沿所述的座位架的前后方向可滑动地设置在所述的座位架上；
    推杆架，所述的推杆架的下端部与所述的滑动件相转动连接；
    侧连杆，所述的侧连杆的后端部与所述的推杆架相转动连接，所述的侧连杆的前端部、所述的座位架的前端部、所述的前支架的上端部三个部件中，其中一个部件与另一个部件枢轴转动连接，第三个部件与其余的两个部件中的至少一个部件也枢轴转动连接；
    联动杆，所述的联动杆的前端部与所述的前支架相转动连接，所述的联动杆的后端部与所述的滑动件相转动连接；
    在所述的车架由展开状态向折叠状态转换的过程中，所述的左后支架的上端部和所述的右后支架的上端部分别向前且向靠近所述的虚拟平面的方向滑动，位于左后支架下部的左后轮组件和位于右后支架下部的右后轮组件也分别向前且向靠近所述的虚拟平面的方向移动。
  2. 根据权利要求1所述的童车，其特征在于：所述的滑动件沿所述的虚拟平面相平行的方向可滑动地设置在所述的座位架上。
  3. 根据权利要求1所述的童车，其特征在于：所述的滑动件包括左滑动杆和右滑动杆，所述的推杆架包括左推杆和右推杆，所述的左推杆的下端部与所述的左滑动杆相转动连接，所述的右推杆的下端部与所述的右滑动杆相转动连接；所述的左滑动杆与所述的右滑动杆分别相对于所述的座位架可滑动地设置，所述的左滑动杆与所述的右滑动杆的滑动方向分别平行于所述的虚拟平面。
  4. 根据权利要求1所述的童车，其特征在于：所述的座位架上分别设有左导轨和右导轨，所述的左导轨和所述的右导轨相对于所述的虚拟平面对称设置，所述的左导轨与所述的右导轨之间在左右方向上的距离自后向前逐渐变小，所述的左后支架的上端部与所述的左导轨相滑动连接，所述的右后支架的上端部与所述的右导轨相滑动连接。
  5. 根据权利要求4所述的童车，其特征在于：所述的左导轨和所述的右导轨分别设置于所述的座位架的底部。
  6. 根据权利要求4所述的童车，其特征在于：所述的童车还包括设置在所述的滑动件与所述的左后支架之间的左联动机构、以及设置在所述的滑动件与所述的右后支架之间的右联动机构；在所述的车架由展开状态向折叠状态转换的过程中，所述的滑动件沿着所述的座位架向后滑动，所述的左联动机构带动所述的左后支架的上端部沿着所述的左导轨向前滑动，所述的右联动机构带动所述的右后支架的上端部沿着所述的右导轨向前滑动；在所述的车架由折叠状态向打开状态转换的过程中，所述的滑动件沿着所述的座位架向前滑动，所述的左联动机构带动所述的左后支架的上端部沿着所述的左导轨向后滑动，所述的右联动机构带动所述的右后支架的上端部沿着所述的右导轨向后滑动。
  7. 根据权利要求6所述的童车，其特征在于：所述的左联动机构包括第一牵引索和通过枢轴转动设置于所述的座位架上的第一组导向轮，所述的第一牵引索绕设在所述的第一组导向轮上，所述的滑动件和所述的左后支架分别与所述的第一牵引索相固定连接；所述的右联动机构包括第二牵引索和通过枢轴转动设置于所述的座位架上的第二组导向轮，所述的第二牵引索绕设在所述的第二组导向轮上，所述的滑动件和所述的右后支架分别与所述的第二牵引索相固定连接。
  8. 根据权利要求7所述的童车，其特征在于：所述的左联动机构和所述的右联动机构相对于所述的虚拟平面对称设置；在所述的滑动件和所述的左后支架相对运动以及所述的滑动件和所述的右后支架相对运动的过程中，所述的第一牵引索和所述的第二牵引索分别始终处于拉紧的状态。
  9. 根据权利要求7所述的童车，其特征在于：所述的第一组导向轮包括设于所述的座位架的后部左侧的第一导向轮和第二导向轮、以及设于所述的座位架的前部的第三导向轮、第四导向轮和第五导向轮，所述的第一导向轮的转动轴线、所述的第三导向轮的转动轴线和所述的第四导向轮的转动轴线分别沿上下方向延伸，所述的第二导向轮的转动轴线和所述的第五导向轮的转动轴线分别大致垂直于所述的左导轨的延伸方向且分别大致垂直于所述的第一导向轮的转动轴线，所述的第一牵引索包括第一段第一牵引索和第二段第一牵引索，所述的第一段第一牵引索的一端与所述的滑动件的前部相固定连接，另一端依次绕过所述的第一导向轮和所述的第二导向轮后与所述的左后支架的上端部相固定连接，所述的第二段第一牵引索的一端与所述的滑动件的前部相固定连接，另一端依次绕过所述的第三导向轮、所述的第四导向轮和所述的第五导向轮后与所述的左后支架的上端部相固定连接，所述的第一段第一牵引索和所述的第二段第一牵引索分别独立地设置，或所述的第一段第一牵引索和所述的第 二段第一牵引索首尾相连形成封闭结构；
    所述的第二组导向轮包括设置在所述的座位架的后部右侧的第六导向轮和第七导向轮、以及设置在所述的座位架的前部的第八导向轮、第九导向轮和第十导向轮，所述的第六导向轮的转动轴线、所述的第八导向轮的转动轴线和所述的第九导向轮的转动轴线分别沿上下方向延伸，所述的第七导向轮的转动轴线和所述的第十导向轮的转动轴线分别大致垂直于所述的右导轨的延伸方向且分别大致垂直于所述的第六导向轮的转动轴线，所述的第二牵引索包括第一段第二牵引索和第二段第二牵引索，所述的第一段第二牵引索的一端与所述的滑动件的前部相固定连接，另一端依次绕过所述的第六导向轮和所述的第七导向轮后与所述的右后支架的上端部相固定连接，所述的第二段第二牵引索的一端与所述的滑动件的前部相固定连接，另一端依次绕过所述的第八导向轮、所述的第九导向轮和所述的第十导向轮后与所述的右后支架的上端部相固定连接，所述的第一段第二牵引索和所述的第二段第二牵引索分别独立地设置，或所述的第一段第二牵引索和所述的第二段第二牵引索首尾相连形成封闭结构。
  10. 根据权利要求1所述的童车，其特征在于：所述的座位架为板状，其具有上表面和下表面，所述的上表面和所述的下表面之间开有沿前后方向延伸的容纳腔，至少部分所述的滑动件位于所述的容纳腔中。
  11. 根据权利要求10所述的童车，其特征在于：所述的滑动件的后端部与所述的推杆架的下端部相枢轴转动连接。
  12. 根据权利要求3所述的童车，其特征在于：所述的左滑动杆和所述的右滑动杆相对于所述的虚拟平面对称设置并分别沿前后方向延伸，所述的滑动件还包括沿左右方向延伸的横连杆，所述的横连杆的两端分别与所述的左滑动杆和所述的右滑动杆相固定连接，所述的联动杆的后端部与所述的横连杆的中部相枢轴转动连接。
  13. 根据权利要求1所述的童车，其特征在于：在所述的车架由展开状态向折叠状态转换的过程中，部分所述的滑动件向后伸出所述的座位架。
  14. 根据权利要求1所述的童车，其特征在于：在所述的车架由展开状态向折叠状态转换的过程中，所述的推杆架向前下方翻转靠拢所述的座位架，所述的前支架向后上方翻转靠拢所述的座位架。
  15. 根据权利要求1所述的童车，其特征在于：在所述的车架处于折叠状态时，所述的前轮组件位于所述的左后轮组件和所述的右后轮组件之间的中间位置。
PCT/CN2022/134955 2022-06-13 2022-11-29 一种童车 WO2023240932A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210660528.6 2022-06-13
CN202210660528.6A CN115158434B (zh) 2022-06-13 2022-06-13 一种童车

Publications (1)

Publication Number Publication Date
WO2023240932A1 true WO2023240932A1 (zh) 2023-12-21

Family

ID=83484909

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/134955 WO2023240932A1 (zh) 2022-06-13 2022-11-29 一种童车

Country Status (2)

Country Link
CN (1) CN115158434B (zh)
WO (1) WO2023240932A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115158434B (zh) * 2022-06-13 2023-12-29 好孩子儿童用品有限公司 一种童车

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006335355A (ja) * 2003-04-30 2006-12-14 Matthew Golias 折りたたみ可能な支持構造
US20150076776A1 (en) * 2013-09-13 2015-03-19 Lerado (Zhong Shan) Industrial Co., Ltd. Jogging stroller frame with a front wheel automatic flattening folding mechanism
CN106515829A (zh) * 2016-12-14 2017-03-22 好孩子儿童用品有限公司 一种儿童推车
CN106891982A (zh) * 2015-12-19 2017-06-27 明门瑞士股份有限公司 婴儿推车
CN107128352A (zh) * 2016-02-29 2017-09-05 明门瑞士股份有限公司 婴儿车框架
CN108297925A (zh) * 2017-12-22 2018-07-20 好孩子儿童用品有限公司 一种儿童推车
WO2019007196A1 (zh) * 2017-07-06 2019-01-10 昆山森夏儿童用品有限公司 一种儿童推车的车轮支架收拢机构及车架
EP3747730A1 (en) * 2019-06-05 2020-12-09 Thule Sweden AB Foldable frame assembly and stroller
CN115158434A (zh) * 2022-06-13 2022-10-11 好孩子儿童用品有限公司 一种童车

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB593863A (en) * 1945-06-18 1947-10-28 Harold Pitts Improvements in or relating to folding push chairs
US4256325A (en) * 1977-01-13 1981-03-17 Henry Fleischer Collapsible frames for baby carriers
JP3416329B2 (ja) * 1994-10-20 2003-06-16 アップリカ▲葛▼西株式会社 子供用座席装置
JP3764515B2 (ja) * 1994-11-25 2006-04-12 コンビ株式会社 折りたたみ式の着座装置
NL1020099C2 (nl) * 2002-03-01 2003-09-02 V O F Wf Trading Internat De uitvinding heeft betrekking op een kinderwagen.
CN102001350B (zh) * 2010-10-27 2012-11-07 好孩子儿童用品有限公司 儿童推车
JP2014136057A (ja) * 2013-01-17 2014-07-28 Honoka Tamura ゴルフ練習兼用のトレーニング用具
CN104401380B (zh) * 2014-12-02 2016-10-26 好孩子儿童用品有限公司 一种可折叠儿童伞把车
CN104192195B (zh) * 2014-08-13 2016-08-24 好孩子儿童用品有限公司 可双向折叠的儿童伞把车
CN208344304U (zh) * 2018-05-15 2019-01-08 好孩子儿童用品有限公司 双向折叠推车
CN109178077A (zh) * 2018-09-29 2019-01-11 好孩子儿童用品有限公司 折叠婴儿推车
CN211167037U (zh) * 2019-09-25 2020-08-04 好孩子儿童用品有限公司 一种折叠推车

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006335355A (ja) * 2003-04-30 2006-12-14 Matthew Golias 折りたたみ可能な支持構造
US20150076776A1 (en) * 2013-09-13 2015-03-19 Lerado (Zhong Shan) Industrial Co., Ltd. Jogging stroller frame with a front wheel automatic flattening folding mechanism
CN106891982A (zh) * 2015-12-19 2017-06-27 明门瑞士股份有限公司 婴儿推车
CN107128352A (zh) * 2016-02-29 2017-09-05 明门瑞士股份有限公司 婴儿车框架
CN106515829A (zh) * 2016-12-14 2017-03-22 好孩子儿童用品有限公司 一种儿童推车
WO2019007196A1 (zh) * 2017-07-06 2019-01-10 昆山森夏儿童用品有限公司 一种儿童推车的车轮支架收拢机构及车架
CN108297925A (zh) * 2017-12-22 2018-07-20 好孩子儿童用品有限公司 一种儿童推车
EP3747730A1 (en) * 2019-06-05 2020-12-09 Thule Sweden AB Foldable frame assembly and stroller
CN115158434A (zh) * 2022-06-13 2022-10-11 好孩子儿童用品有限公司 一种童车

Also Published As

Publication number Publication date
CN115158434B (zh) 2023-12-29
CN115158434A (zh) 2022-10-11

Similar Documents

Publication Publication Date Title
CN210680883U (zh) 折叠儿童推车
EP2138376B1 (en) Stroller
JP2020521669A (ja) ベビーカー
US10501141B2 (en) Folding tricycle
WO2023240932A1 (zh) 一种童车
TWM312478U (en) Foldable baby stroller frame
CN103802877B (zh) 可折叠婴儿车
SG174441A1 (en) Stroller
WO2006133143A1 (en) A folding bicycle
CN110723191A (zh) 折叠儿童推车
CN100588582C (zh) 一种可折叠儿童推车
CN110116746B (zh) 一种儿童推车
CN101352607B (zh) 折叠式高尔夫球手推车
CN207790800U (zh) 一种婴儿车
CN201313571Y (zh) 可折叠儿童推车
CN210502824U (zh) 折叠儿童推车
CN103121460A (zh) 婴儿车架
CN213921189U (zh) 一种可折叠推车车架及可折叠推车
CN104973112A (zh) 可收合婴儿车架
CN113247163A (zh) 折叠车
CN218400682U (zh) 一种儿童车
CN213262554U (zh) 可收合车架及婴儿车
CN218055333U (zh) 一种一体式手把锁的婴儿手推车
CN217554097U (zh) 折叠车
CN209336788U (zh) 一种婴儿推车的折叠车架

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22946598

Country of ref document: EP

Kind code of ref document: A1