CN110816633A - Children's barrow - Google Patents
Children's barrow Download PDFInfo
- Publication number
- CN110816633A CN110816633A CN201911301391.XA CN201911301391A CN110816633A CN 110816633 A CN110816633 A CN 110816633A CN 201911301391 A CN201911301391 A CN 201911301391A CN 110816633 A CN110816633 A CN 110816633A
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- CN
- China
- Prior art keywords
- rear wheel
- frame
- front wheel
- supporting rod
- stroller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
- B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
- B62B7/083—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis the wheel axes being moved from each other during folding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
- B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
- B62B7/086—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis becoming smaller in all three dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
- B62B7/10—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by folding down the body to the wheel carriage or by retracting projecting parts into the box-shaped body
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The utility model provides a child cart, including the chassis, form the last frame structure in chassis top, the chassis includes end bed frame, only can connect the rear wheel branch on the subbase frame around the first axle that extends around rotating, only can set up the front wheel branch on rear wheel branch around the straight line slides, be provided with between the rear portion of front wheel branch and the subbase frame and drive the lazy turn lazytongs of relative pivoted when displacement around both, the front wheel subassembly sets up in the front portion of front wheel branch, the rear wheel subassembly sets up in the rear portion of rear wheel branch. The front wheel supporting rod and the rear wheel supporting rod are shortened from front to back, namely, the front wheel supporting rod, the rear wheel supporting rod and the bottom base frame are shortened from front to back, under the matching action of the slip synchronizing mechanism, the front wheel supporting rod and the rear wheel supporting rod are enabled to synchronously rotate relative to the bottom base frame, the original standing front wheel assembly and rear wheel assembly are enabled to be shortened in front-back distance, the front wheel assembly and the rear wheel assembly on the left side and the right side are respectively rotated and folded in opposite directions, and the folding size of the cart frame is more compact and flat.
Description
Technical Field
The invention relates to a baby stroller.
Background
A stroller in the prior art generally includes a stroller frame having an unfolding position and a folding position, a seat mechanism disposed on the stroller frame, a locking mechanism for locking the stroller frame to the whole stroller at the unfolding position, a front wheel assembly, a rear wheel assembly, and the like. The stroller frames are various in types, but most of the stroller frames are only folded, and the front wheel assemblies and the rear wheel assemblies are not folded, so that the folded size is relatively large.
Disclosure of Invention
The invention aims to provide a baby stroller.
In order to solve the technical problems, the invention adopts the technical scheme that: a children's cart comprises a cart frame with an unfolding position and a folding position, a seat device, a front wheel assembly, a rear wheel assembly and a frame locking mechanism for locking the cart frame at the unfolding position, wherein the cart frame comprises side brackets positioned at the left side and the right side,
the side brackets of each side include:
the device comprises a bottom frame and an upper frame structure formed above the bottom frame;
the chassis includes:
the front wheel support rod is arranged at the front part of the front wheel support rod;
the rear wheel support rod is arranged at the rear part of the rear wheel support rod, and the front wheel support rod and the rear wheel support rod can only be linearly arranged in a sliding manner back and forth;
a bottom base frame, one of the rear wheel support rod and the front wheel support rod is connected on the bottom base frame in a way of rotating around a bottom shaft extending forwards and backwards,
the other of the rear wheel supporting rod and the front wheel supporting rod and the bottom base frame can linearly slide back and forth and can be rotationally arranged, and a sliding and rotating synchronizing mechanism which drives the two to rotate relatively when the two move back and forth is arranged between the rear wheel supporting rod and the bottom base frame.
That is, one of the rear wheel supporting rod and the front wheel supporting rod only rotates relative to the bottom base frame, the other one of the rear wheel supporting rod and the front wheel supporting rod can slide and rotate relative to the bottom base frame, and when the rear wheel supporting rod and the front wheel supporting rod slide relatively, the rear wheel supporting rod and the front wheel supporting rod can synchronously rotate relative to the bottom base frame.
In some embodiments, the upper frame structure of each side includes:
a front stay bar;
the upper part of the rear support rod is connected with the upper part of the front support rod through an upper shaft pivot extending left and right;
the lower part of the connecting piece is only connected to the other of the rear wheel supporting rod and the front wheel supporting rod in a rotating mode around a bottom biaxial extending forwards and backwards, the bottom biaxial and the bottom axial extend along the same straight line direction, the bottom base frames of the connecting piece are arranged in tandem, the former of the bottom base frames of the connecting piece is in pivot connection with the lower part of the front supporting rod around an upper triaxial extending leftwards and rightwards, and the latter of the bottom base frames of the connecting piece is in pivot connection with the lower part of the rear supporting rod around an upper biaxial extending leftwards and rightwards.
In some embodiments, the upper frame structure of each side further comprises:
the front stay bar is arranged on the front stay bar in a sliding manner along the length direction of the rod piece of the front stay bar;
the driving connecting rod is connected with the upper four-axis pivot extending from left to right of the front stay piece, and the driving connecting rod is connected with the upper five-axis pivot extending from left to right of the rear stay piece.
In some embodiments, the upper frame structure of each side further comprises:
the push rod assembly is arranged on the front supporting rod in a sliding mode along the length direction of a rod piece of the front supporting rod, a sliding linkage mechanism is arranged between the lower portion of the push rod assembly and the front supporting slide piece, and when the push rod assembly slides upwards or downwards relative to the front supporting rod, the sliding linkage mechanism enables the front supporting slide piece to slide upwards or downwards.
In some embodiments, the frame locking mechanism includes a full car lock mechanism disposed between the lower portion of the push rod assembly and the front strut.
In some embodiments, the push rod assembly includes a lower push rod located at the lower portion, and an upper push rod located at the upper portion and telescopically arranged with the lower push rod up and down, and the frame locking mechanism includes a push rod locking mechanism arranged between the upper push rod and the lower push rod.
In some embodiments, the rear wheel strut is rotatably connected to the bottom base frame around the bottom axis, the front wheel strut and the bottom base frame are capable of sliding linearly back and forth and being rotatably disposed, and the rear wheel strut, the front wheel strut and the bottom base frame are mutually sleeved.
In some embodiments, the front wheel strut can be inserted into the rear wheel strut in a front-back linear sliding manner, the bottom base frame can be sleeved on the rear wheel strut in a rotating manner around the bottom shaft, the front wheel strut is provided with a convex positioning pin, the rear wheel strut is provided with a straight groove extending front and back, the positioning pin is inserted into the straight groove, the sliding synchronization mechanism comprises a guide groove arranged on the bottom base frame and the positioning pin, the positioning pin is inserted into the guide groove, the guide groove at least comprises a spiral groove section extending in a spiral manner, and in the process of sliding of the positioning pin in the spiral groove section, the front wheel strut and the rear wheel strut rotate synchronously relative to the bottom base frame.
In some embodiments, the left and right chassis are symmetrically disposed, and the distance between the front wheel assembly and the rear wheel assembly when the stroller frame is in the unfolded position is greater than the distance between the front wheel assembly and the rear wheel assembly when the stroller frame is in the folded position; when the stroller frame is in the folded position, the front wheel assemblies on the left side and the right side and the rear wheel assemblies on the left side and the right side respectively rotate in opposite directions and are folded towards each other.
In some embodiments, the stroller frame further comprises a plurality of cross bars fixedly connected between the left and right side brackets to form a rigid stroller frame.
The scope of the present invention is not limited to the specific combinations of the above-described features, and other embodiments in which the above-described features or their equivalents are arbitrarily combined are also intended to be encompassed. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the front wheel supporting rod and the rear wheel supporting rod of the chassis can only relatively slide, one of the front wheel supporting rod and the rear wheel supporting rod can only rotate relative to the chassis frame, the other one can synchronously realize rotation and sliding through the slip synchronization mechanism, in the process of folding the stroller frame, the front wheel supporting rod and the rear wheel supporting rod are shortened front and back, namely, the front wheel supporting rod, the rear wheel supporting rod and the chassis frame are shortened front and back, under the matching action of the slip synchronization mechanism, the front wheel supporting rod and the rear wheel supporting rod are enabled to synchronously rotate relative to the chassis frame, namely, after the stroller frame is folded, the original standing front wheel assembly and rear wheel assembly not only shorten the front and back distance, but also the front wheel assembly and the rear wheel assembly on the left side and the right side are respectively rotated and folded in opposite directions, so that the volume of the stroller after.
Drawings
FIG. 1 is a first schematic perspective view of a stroller in an extended position according to an embodiment;
FIG. 2 is a perspective view of the stroller in the second deployed position according to the first embodiment;
FIG. 3 is a schematic top view of an embodiment of a stroller in a deployed position;
FIG. 4 is a front schematic view of a stroller in an extended position according to an embodiment;
FIG. 5 is a first schematic view of the stroller in a folding process according to the first embodiment;
FIG. 6 is a schematic view of a stroller in a folding process according to the first embodiment;
FIG. 7 is a perspective view of the stroller in a collapsed position according to an embodiment;
FIG. 8 is an exploded view of the undercarriage;
FIG. 9 is a perspective view of the assembled chassis (with the bottom chassis housing omitted);
FIG. 10 is a perspective view of the assembled chassis;
wherein, P1, side bracket; p2, cross bar; w1, front wheel assembly; w2, rear wheel assembly;
1. a chassis; 11. a bottom pedestal; 111. a guide groove; 12. a front wheel strut; 121. positioning pins; 13. a rear wheel strut; 131. a straight groove; x11, bottom axis; x12, bottom biaxial;
2. an upper frame structure; 21. a front stay bar; 22. a rear stay bar; 23. a connecting member; 24. a front stay; 25. a drive link; 26. a push rod assembly; 261. a lower push rod;
262. a push rod is arranged; x21, upper axis; x22, upper two-axis; x23, upper three axes; x24, upper four-axis; x25, upper five axes.
Detailed Description
Embodiment one, as shown in FIGS. 1-10.
A stroller includes a stroller frame having an unfolded position and a folded position, a seating arrangement, a front wheel assembly W1, a rear wheel assembly W2, and a frame locking mechanism for locking the stroller frame in the unfolded position. As shown in fig. 1-7, the stroller frame includes side supports P1 at the left and right sides, and a plurality of cross bars P2, wherein the cross bars P2 are fixedly connected between the left and right side supports P1 to form a rigid stroller frame.
As shown in fig. 4, each side stand P1 includes: the vehicle comprises a chassis 1 and an upper frame structure 2 formed above the chassis 1.
As shown in fig. 1, 2, 8-10, the chassis 1 comprises:
a base frame 11;
a rear wheel strut 13, the rear wheel strut 13 being rotatably connected to the base frame 11 only about a front-rear extending base axis X11, the rear wheel assembly W2 being provided at the rear of the rear wheel strut 13;
the front wheel strut 12, the front wheel strut 12 and the rear wheel strut 13 are only arranged in a manner of being capable of sliding linearly back and forth, the front wheel strut 12 and the bottom base 11 are arranged in a manner of being capable of sliding linearly along a bottom axis X11 and rotating around a bottom axis X11, a sliding and rotating synchronizing mechanism which drives the front wheel strut 12 and the bottom base 11 to rotate relatively when the front wheel strut 12 and the bottom base are displaced back and forth is arranged between the rear part of the front wheel strut 12 and the bottom base 11, and a front wheel assembly W1 is arranged at the front part of the front.
The underframe 1 on the left side and the right side are symmetrically arranged, and the distance between the front wheel assembly W1 and the rear wheel assembly W2 when the stroller frame is in the unfolded position is larger than the distance between the front wheel assembly W1 and the rear wheel assembly W2 when the stroller frame is in the folded position; when the stroller frame is in the unfolded position, the front wheel assemblies W1 and the rear wheel assemblies W2 respectively extend downwards to stand, and when the stroller frame is in the folded position, the front wheel assemblies W1 on the left and right sides and the rear wheel assemblies W2 on the left and right sides respectively rotate in opposite directions and are folded towards each other.
As shown in fig. 8-10, in detail, the underframe 1 realizes that the rear wheel strut 13, the front wheel strut 12 and the bottom underframe 11 are sleeved with each other, and the central line of the front wheel strut 12 extending forwards and backwards coincides with a bottom axis X11. The front wheel strut 12 can be inserted into the rear wheel strut 13 in a front-back linear sliding manner, the bottom base 11 can be sleeved on the rear wheel strut 13 in a rotating manner around a bottom axis X11, the front wheel strut 12 is provided with a convex positioning pin 121, the rear wheel strut 13 is provided with a straight groove 131 extending front and back, and the positioning pin 121 is inserted into the straight groove 131.
As shown in fig. 8, the bottom chassis 11 includes a bottom chassis body, and a bottom chassis housing fixedly secured to the bottom chassis body, and both are integrally formed. The slip synchronization mechanism includes a guide groove 111 formed on the bottom base frame body of the bottom base frame 11, and a positioning pin 121 on the front wheel strut 12, and the positioning pin 121 is inserted in the guide groove 111. The guide groove 111 includes a spiral groove section extending spirally and a straight groove section extending forward and backward, and when the positioning pin 121 is in the straight groove section, the front wheel strut 12 can only slide and extend forward and backward relative to the bottom pedestal 11 and the rear wheel strut 13. Locating pin 121 is at the gliding in-process of spiral groove section, and front wheel branch 12 just can drive rear wheel branch 13 relative end bed frame 11 and rotate in step, in this embodiment, has rotated 90 through the processing to the spiral groove section, and front wheel branch 12 can rotate 90 with rear wheel branch 13 relative end bed frame 11 promptly, can make the front wheel subassembly and the rear wheel subassembly of the left and right sides respectively rotate folding to approximate coplanar in opposite directions during folding, and the folding back volume of children's shallow is compacter, and is more flat.
Alternatively, the chassis 1 may be realized such that the front wheel stays are fitted over the rear wheel stays so as to be slidable back and forth, not shown. The positions of the positioning pin and the guide groove are interchanged, namely the positioning pin is arranged on the bottom base frame 11, and the guide groove is arranged on the front wheel supporting rod.
The upper frame structure 2 theoretically only needs to be able to cause the front wheel strut 12 to perform telescopic sliding movement relative to the rear wheel strut 13. In this embodiment, as shown in FIGS. 1 to 7. The upper frame structure 2 of each side includes:
a front stay 21;
a rear stay 22, the upper part of the rear stay 22 is pivotally connected with the upper part of the front stay 21 around an upper axis X21 extending left and right, and the lower part of the rear stay 22 is pivotally connected with the upper two axes X22 extending left and right of the bottom base frame 11;
in this embodiment, the lower portion of the link 23 is rotatably fitted around the front wheel strut 12 only about a bottom biaxial X12 extending forward and backward, the bottom biaxial X12 coincides with a center line extending forward and backward of the front wheel strut 12, and the bottom biaxial X12 and the bottom axial X11 extend in the same linear direction. The upper part of the link 23 is pivotally connected to the lower part of the front stay 21 about an upper three axis X23 extending from side to side. The link 23 and the front wheel stay 12 are integrated with each other so as to be able to rotate and slide in the front-rear and vertical planes, and thus, they are formed to be retractable in the front-rear direction with respect to the base frame 11, and constitute a deformable large triangular mechanism with the front stay 21 and the rear stay 22. The connection of the above-mentioned connecting piece 23 is based on the front wheel strut 12 sliding back and forth relative to the bottom base frame 11 and rotating set up, the rear wheel strut 13 is installed and set up relative to the bottom base frame 11 on the premise of rotating connection. If the underframe is not shown in the drawing, the front wheel strut 12 can only rotate relative to the bottom base frame 11, the rear wheel strut 13 can slide back and forth relative to the bottom base frame 11 and can also rotate, the lower part of the connecting piece 23 is connected to the rear wheel strut 13 in a manner of rotating around a bottom two-axis X12, the bottom base frame 11 is positioned in the front, the connecting piece 23 is positioned in the rear, the lower part of the front stay 21 is pivotally connected with the bottom base frame 11 around an upper three-axis X23 extending from left to right, and the lower part of the rear stay 22 is pivotally connected with the connecting piece 23 around an upper two-axis X22 extending from left to right.
In the process that the front wheel supporting rod 12 retracts into the rear wheel supporting rod 13, namely retracts and slides relative to the bottom base frame 11, under the matching action of the sliding and rotating synchronizing mechanism, the front wheel supporting rod 12 is enabled to rotate relative to the bottom base frame 11, so that the rear wheel supporting rod 13 is driven to rotate relative to the bottom base frame 11, namely, after the stroller frame is folded, the same underframe is folded, the front wheel assembly W1 and the rear wheel assembly W2 which stand originally are drawn together front and back, the distance is shortened, the front wheel assemblies W1 on the left side and the right side and the rear wheel assemblies W2 on the left side and the right side are respectively rotated and folded in opposite directions to be approximately the same plane, and the volume of.
In order to make the operation of the above-mentioned large triangle mechanism smoother, and ensure that when the stroller frame is folded, the front wheel strut 12 retracts relative to the bottom base frame 11, the upper frame structure 2 on each side further comprises:
a front stay 24, the front stay 24 being slidably provided on the front stay 21 along a rod length direction of the front stay 21;
a driving link 25, the driving link 25 is pivotally connected with the front stay 24 around an upper four-axis X24 extending leftwards and rightwards, and the driving link 25 is pivotally connected with the rear stay 22 around an upper five-axis X25 extending leftwards and rightwards;
the push rod assembly 26 is slidably disposed on the front stay 21 along the length direction of the rod of the front stay 21, and a sliding linkage mechanism is disposed between the lower portion of the push rod assembly 26 and the front stay 24, in this embodiment, the sliding linkage mechanism is a matching of a sliding slot and a pin, when the push rod assembly 26 slides upward relative to the front stay 21, the pin hooks the upper end surface of the sliding slot, so that the front stay 24 also slides upward, and when the push rod assembly 26 slides downward relative to the front stay 21, the pin hooks the lower end surface of the sliding slot, so that the front stay 24 also slides downward. The sliding linkage may therefore be achieved by a pin on the lower portion of the push rod assembly 26 cooperating with two stops provided on the front stay slide 24.
The front stay 24 and the front stay 21 constitute a telescopic rod, and together with the rear stay 22 and the drive link 25, a deformable small triangular mechanism is constituted. The small triangular mechanism plays a role in assisting in rigidity enhancement and folding of the large triangular mechanism. When folding is assisted, the push rod component 26 is arranged on the front support rod 21 in a sliding mode, so that the small triangular mechanism is started to deform, the large triangular mechanism is driven to deform, and the large triangular mechanism is unfolded and folded quickly.
In order to make the folded volume smaller, the push rod assembly 26 is a telescopic rod, and includes a lower push rod 261 located at the lower portion, and an upper push rod 262 located at the upper portion and extending and contracting up and down with the lower push rod 261.
In this embodiment, the frame locking mechanism includes a whole vehicle locking mechanism disposed between the lower portion of the push rod assembly 26 and the front stay 21, and a push rod locking mechanism disposed between the upper push rod 262 and the lower push rod 261. The whole vehicle lock mechanism and the push rod lock mechanism are common necessary mechanisms in the field of carts, and the specific structures are not repeated.
The axis of the bottom shaft X11, the axis of the bottom shaft X12 and the center line of the front wheel strut 12 tilt upwards from the front part to the back part, and form an included angle a with the horizontal plane, and the included angle a is 3 degrees. The chassis 1 is inclined by 3 degrees, so that the center of gravity of the unfolded position of the cart frame is more stable, and the front wheel supporting rod 12 can be conveniently retracted relative to the bottom base frame 11 when the cart frame is folded.
The second embodiment is not shown in the drawings, and the second embodiment is different from the first embodiment in that the upper frame structure comprises a front stay, a push rod assembly, a rear stay and a connecting piece, wherein the lower end of the push rod assembly is connected with the upper end of the front stay through a shaft pivot extending left and right, the upper end of the rear stay is connected with the push rod assembly through a shaft pivot extending left and right, the connecting piece is directly rotatably sleeved at the front part of the front wheel supporting rod along a shaft extending front and back, the front stay is connected with the connecting piece through a shaft pivot extending left and right, and the lower end of the rear stay is connected with the bottom base frame through a shaft pivot extending left and right. When the folding stroller is folded, the push rod assembly is forwards turned, the rear support rod is dragged to move forwards, the front wheel assembly and the rear wheel assembly of the same underframe can be drawn together forwards and backwards, the front wheel assembly and the rear wheel assembly on the left side and the right side respectively rotate in opposite directions and are folded to be approximate to the same plane, and the folding stroller is more compact in size and flatter after being folded.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A stroller comprising a stroller frame having an unfolded position and a folded position, a seat unit, a front wheel assembly (W1), a rear wheel assembly (W2), a frame locking mechanism for locking the stroller frame in the unfolded position, the stroller frame comprising side brackets (P1) at both left and right sides,
the method is characterized in that:
the side brackets (P1) of each side include:
the device comprises a bottom frame (1) and an upper frame structure (2) formed above the bottom frame (1);
the chassis (1) comprises:
a front wheel strut (12), the front wheel assembly (W1) being disposed forward of the front wheel strut (12);
a rear wheel strut (13), the rear wheel assembly (W2) being disposed at the rear of the rear wheel strut (13), the front wheel strut (12) and the rear wheel strut (13) being disposed so as to be linearly slidable only forward and backward;
one of the base frame (11), the rear wheel strut (13) and the front wheel strut (12) is connected to the base frame (11) only in a rotatable manner about a base axis (X11) extending in the front-rear direction,
the other of the rear wheel support rod (13) and the front wheel support rod (12) and the bottom base frame (11) can linearly slide back and forth and can also be rotatably arranged, and a sliding and rotating synchronous mechanism which drives the relative rotation when the rear wheel support rod and the bottom base frame (11) move back and forth is arranged between the rear wheel support rod and the front wheel support rod.
2. The stroller of claim 1, wherein: the upper frame structure (2) of each side comprises:
a front stay (21);
a rear stay (22), the upper part of the rear stay (22) is pivotally connected with the upper part of the front stay (21) around an upper shaft (X21) extending leftwards and rightwards;
a connecting member (23), the lower part of the connecting member (23) is rotatably connected to the other of the rear wheel strut (13) and the front wheel strut (12) only around a bottom biaxial (X12) extending forwards and backwards, the bottom biaxial (X12) and the bottom axial (X11) extend in the same linear direction, the connecting member (23) is arranged in tandem with the bottom base frame (11), the former of the connecting member (23) and the bottom base frame (11) is pivotally connected with the lower part of the front strut (21) around an upper triaxial (X23) extending leftwards and rightwards, and the latter of the connecting member (23) and the bottom base frame (11) is pivotally connected with the lower part of the rear strut (22) around an upper biaxial (X22) extending leftwards and rightwards.
3. The stroller of claim 2, wherein: the upper frame structure (2) of each side further comprises:
a front stay slider (24), the front stay slider (24) is arranged on the front stay (21) in a sliding manner along the length direction of the rod of the front stay (21);
a drive link (25), the drive link (25) is pivotally connected with the front stay (24) around an upper four-axis (X24) extending left and right, and the drive link (25) is pivotally connected with the rear stay (22) around an upper five-axis (X25) extending left and right.
4. The stroller of claim 3, wherein:
the upper frame structure (2) of each side further comprises:
the push rod assembly (26), push rod assembly (26) follow the member length direction of preceding vaulting pole (21) sets up with sliding on preceding vaulting pole (21), push rod assembly (26) lower part with be provided with the slip link gear between preceding vaulting pole (24), when push rod assembly (26) are relative when preceding vaulting pole (21) upwards or slide downwards, the slip link gear makes preceding vaulting pole (24) also upwards or slide downwards.
5. The stroller of claim 4, wherein: the frame locking mechanism comprises a whole vehicle locking mechanism arranged between the lower part of the push rod assembly (26) and the front support rod (21).
6. The stroller of claim 4, wherein: push rod subassembly (26) including be located the lower part push rod (261), be located upper portion with push rod (261) is down the last push rod (262) of flexible setting, frame locking mechanical system including set up in last push rod (262) with push rod latch mechanism between push rod (261) down.
7. Child stroller according to any one of claims 1-6, characterized in that: the rear wheel supporting rod (13) is rotatably connected to the bottom base frame (11) around the bottom shaft (X11), the front wheel supporting rod (12) and the bottom base frame (11) can linearly slide back and forth and can be rotatably arranged, and the rear wheel supporting rod (13), the front wheel supporting rod (12) and the bottom base frame (11) are mutually sleeved.
8. The stroller of claim 7, wherein: the front wheel supporting rod (12) can be inserted into the rear wheel supporting rod (13) in a front-back linear sliding way, the bottom base frame (11) can be sleeved on the rear wheel support rod (13) in a rotating way around the bottom shaft (X11), the front wheel supporting rod (12) is provided with a convex positioning pin (121), the rear wheel supporting rod (13) is provided with a straight groove (131) extending forwards and backwards, the positioning pin (121) is inserted in the straight groove (131), the sliding and rotating synchronous mechanism comprises a guide groove (111) arranged on the bottom base frame (11) and the positioning pin (121), the positioning pin (121) is inserted in the guide groove (111), the guide groove (111) at least comprises a spirally extending spiral groove section, and in the process that the positioning pin (121) slides in the spiral groove section, the front wheel supporting rod (12) and the rear wheel supporting rod (13) synchronously rotate relative to the bottom base frame (11).
9. Child stroller according to any one of claims 1-6, characterized in that: the underframe (1) at the left side and the right side are symmetrically arranged, and the distance between the front wheel assembly (W1) and the rear wheel assembly (W2) when the trolley frame is in the unfolding position is larger than the distance between the front wheel assembly (W1) and the rear wheel assembly (W2) when the trolley frame is in the folding position; when the stroller frame is in the unfolded position, the front wheel assemblies (W1) and the rear wheel assemblies (W2) respectively extend downwards to stand, and when the stroller frame is in the folded position, the front wheel assemblies (W1) on the left side and the rear wheel assemblies (W2) on the right side and the left side respectively rotate in opposite directions and are folded towards each other.
10. Child stroller according to any one of claims 1-6, characterized in that: the trolley frame further comprises a plurality of cross rods (P2), and the cross rods (P2) are fixedly connected between the left side bracket (P1) and the right side bracket (P1) to form a rigid trolley frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911301391.XA CN110816633A (en) | 2019-12-17 | 2019-12-17 | Children's barrow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911301391.XA CN110816633A (en) | 2019-12-17 | 2019-12-17 | Children's barrow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110816633A true CN110816633A (en) | 2020-02-21 |
Family
ID=69546029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911301391.XA Pending CN110816633A (en) | 2019-12-17 | 2019-12-17 | Children's barrow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110816633A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114852157A (en) * | 2022-04-21 | 2022-08-05 | 福建欧仕儿童用品股份有限公司 | Cart capable of being converted into automobile safety seat base |
| CN115320693A (en) * | 2022-08-19 | 2022-11-11 | 广东乐美达集团有限公司 | Adjustable track frame for children's cycle |
| WO2023155462A1 (en) * | 2022-02-18 | 2023-08-24 | 昆山爱儿佳儿童用品有限公司 | Stroller |
-
2019
- 2019-12-17 CN CN201911301391.XA patent/CN110816633A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155462A1 (en) * | 2022-02-18 | 2023-08-24 | 昆山爱儿佳儿童用品有限公司 | Stroller |
| CN114852157A (en) * | 2022-04-21 | 2022-08-05 | 福建欧仕儿童用品股份有限公司 | Cart capable of being converted into automobile safety seat base |
| CN114852157B (en) * | 2022-04-21 | 2024-05-03 | 福建欧仕儿童用品股份有限公司 | Cart convertible into automobile safety seat base |
| CN115320693A (en) * | 2022-08-19 | 2022-11-11 | 广东乐美达集团有限公司 | Adjustable track frame for children's cycle |
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