CN108974092B - Folding children's barrow - Google Patents
Folding children's barrow Download PDFInfo
- Publication number
- CN108974092B CN108974092B CN201810766359.8A CN201810766359A CN108974092B CN 108974092 B CN108974092 B CN 108974092B CN 201810766359 A CN201810766359 A CN 201810766359A CN 108974092 B CN108974092 B CN 108974092B
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- joint
- rod
- rear wheel
- front wheel
- push rod
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- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 3
- 206010061258 Joint lock Diseases 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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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
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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 invention discloses a folding type child trolley, which comprises left and right grab rails (2, 4), a front wheel carrier (16), front wheels (17), left and right rear wheel rods (22), rear wheels (23), a hand push rod (18), a cushion (3) and a rotary joint assembly, wherein the rotary joint assembly comprises left and right end covers (7), left and right grab rail joints (5), a push rod joint (8), left and right rear wheel rod joints (10) and a front wheel carrier joint (13), and the left and right grab rail joints (5) and the push rod joint (8), the left and right rear wheel rod joints (10) and the front wheel carrier joint (13) are arranged on the left and right end covers (7) in parallel up and down; a handrail rod limiting block (6) and a push rod sliding groove (9) are arranged between the left handrail rod joint (5) and the right handrail rod joint (8); a rear wheel rod limiting block (11) and a front wheel frame sliding groove (14) are arranged between the left and right rear wheel rod joints (10) and the front wheel frame joint (13); the front wheel frame joint (13) locks the push rod joint (8) through a locking mechanism. After adopting above-mentioned structure, have simple structure, convenient operation, folding small, advantage such as portable.
Description
Technical Field
The invention relates to a children article, in particular to a folding type children handcart which is small in folding volume and convenient to carry and store.
Background
The folding child trolley is a transportation tool for parents to carry children to walk, go shopping and travel sightseeing, and not only needs to ensure the comfort and safety of the children when sitting, but also needs to be small in folding volume and convenient to carry and store. The existing folding stroller comprises a front wheel frame, front wheels arranged on the front wheel frame, left and right rear wheel rods and rear wheels arranged on the left and right rear wheels, wherein a hand push rod is fixedly connected on the front wheel frame, the left and right grab bars are connected with the left and right rear wheel rods into a whole, the hand push rod is mutually crossed and connected with the left and right rear wheel rods, a cushion is hinged on the left and right grab bars, the left and right grab bars are connected with a protective sleeve ring, and the hand push rod is a telescopic rod; when the cushion is used, the hand push rod and the left and right rear wheel rods are alternately unfolded, and the cushion is fixed on the hand push rod through the locking mechanism; when the bicycle is carried and stored, the lock catch mechanism is unlocked, the cushion is turned upwards, and the hand push rod and the left and right rear wheel rods are folded. This structure is folding simple, operation convenient to use, and after whole car is folding, the size of fore-and-aft direction had great the reducing, but the height can not diminish, consequently still has the great problem of folding back volume, can't fundamentally reduce the packing volume, and it is still inconvenient to carry in the journey. Aiming at the problems, many manufacturers and acquaintances develop and develop the products, but no satisfactory products come out.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the folding type child trolley which is simple and reasonable in structure, convenient to operate and use, firm and reliable in connection, small in folding volume and convenient to carry and store.
The invention creates the technical scheme adopted for solving the technical problems, and the device comprises a left handrail rod, a right handrail rod, a front wheel carrier, a front wheel, a left rear wheel rod, a right rear wheel rod, a rear wheel, a hand push rod, a cushion and a rotary joint assembly, wherein the rotary joint assembly comprises a left end cover, a right handrail rod joint, a left handrail rod joint, a right handrail rod joint, a push rod joint, a left rear wheel rod joint, a right rear wheel rod joint and a front wheel carrier joint; the left and right armrest rod joints and the push rod joints, the left and right rear wheel rod joints and the front wheel carrier joints are arranged on the left and right end covers in parallel up and down through the fixed shaft; the left handrail rod joint and the right handrail rod joint are symmetrically arranged at two sides of the push rod joint, and the left rear wheel rod joint and the right rear wheel rod joint are symmetrically arranged at two sides of the front wheel frame joint; a handrail rod limiting block and a push rod sliding groove for controlling the spreading angle of the left handrail rod and the right handrail rod and the push rod are correspondingly arranged between the left handrail rod joint and the right handrail rod joint and the push rod joint; a rear wheel rod limiting block and a front wheel frame sliding groove for controlling the supporting angle of the left rear wheel rod, the right rear wheel rod and the front wheel frame are correspondingly arranged between the left rear wheel rod joint, the right rear wheel rod joint and the front wheel frame joint; the front wheel frame joint can lock the push rod joint through the locking mechanism and cannot rotate.
According to the further scheme provided by the invention, the seat cushion is hinged to the left and right grab bars, the locking mechanism is arranged between the seat cushion and the hand push rod and comprises a fixed lock catch fixed on the seat cushion and an elastic lock catch seat arranged on the hand push rod and matched with the fixed lock catch, and the fixed lock catch is locked on the elastic lock catch seat to lock the seat cushion when the seat cushion is unfolded for use.
According to a further scheme of the invention, the locking mechanism comprises a front wheel frame fastener hinged on a front wheel frame joint and a push rod positioning buckle groove arranged on a push rod joint, and the front wheel frame fastener is locked on the push rod positioning buckle groove when the front wheel frame is unfolded for use.
According to the further scheme provided by the invention, a positioning mechanism is arranged between the left and right grab rail joints and the left and right rear wheel rod joints, the positioning mechanism comprises grab rail buckles arranged on the left and right grab rail joints and rear wheel rod clamping grooves arranged on the left and right rear wheel rod joints, and the grab rail buckles are buckled on the rear wheel rod clamping grooves when the grab rail is unfolded for use.
According to a further scheme of the invention, the left handrail rod and the right handrail rod are connected with a reversible protective ferrule.
In the further scheme of the invention, the pedal is fixed on the front wheel frame, at least one front wheel is arranged on the front wheel frame, and the rear wheels are rotatably arranged on the left rear wheel rod and the right rear wheel rod correspondingly.
According to the further scheme provided by the invention, the hand push rod is a telescopic rod with the length adjustable, and a hand push handle is fixed on the hand push rod.
After adopting above-mentioned structure, compared with prior art have following advantage and effect: when the folding seat is unfolded for use, the left and right rear wheel rods are rotated to enable the front wheel frame and the left and right rear wheel rods to be in a herringbone shape, the left and right grab bars and the hand push rod are unfolded, the grab bar buckles are automatically buckled on the rear wheel rod clamping grooves, the seat cushion is fixed with the hand push rod through the buckling mechanism, and the front wheel frame fastener is buckled on the push rod positioning buckling grooves, so that the folding seat can be used; when the folding chair is folded, the spanner of the elastic buckle seat is pulled to separate the fixed buckle of the cushion from the elastic buckle seat, the front wheel frame fastener is pulled to separate the push rod joint from the front wheel rod joint, the hand push rod is rotated to be folded with the left and right grab bars, and the front wheel frame is folded with the left and right rear wheel rods, so that the folding purpose can be achieved. And secondly, because the left and right grab bars, the hand push rod, the front wheel frame and the left and right rear wheel bars are connected with the rotating joint component, the folding stroller has low height after being folded, small packaging volume and convenient carrying and collection, and solves the problem of high folding height of the existing folding stroller. Thirdly, the cushion is fixedly connected with the hand push rod through a locking mechanism, a locking mechanism is arranged between the front wheel frame joint and the push rod joint, and a positioning mechanism is arranged between the left and right grab rail joint and the left and right rear wheel rod joint, so that reliable connection and stable use can be ensured.
Drawings
Fig. 1 is a schematic exploded view of the present invention.
Fig. 2 is a schematic perspective view of the present invention in use.
Fig. 3 is a schematic perspective view of another direction of the present invention in use.
Fig. 4 is a schematic view of the front view structure of the present invention in the use state.
Fig. 5 is a schematic perspective view of the locking mechanism of the present invention when separated.
Fig. 6 is a schematic view of the matching structure in the folding process of the invention.
Fig. 7 is a schematic view of the folded fitting structure of the present invention.
Fig. 8 is a schematic view of the matching structure of the invention when folding is completed.
The safety handle comprises a protective ring 1, a left grab rail 2, a cushion 3, a right grab rail 4, a grab rail joint 5, a grab rail limit block 6, an end cover 7, a push rail joint 8, a push rail chute 9, a rear wheel rail joint 10, a rear wheel rail limit block 11, a front wheel frame fastener 12, a front wheel frame joint 13, a front wheel frame chute 14, a pedal plate 15, a front wheel frame 16, a front wheel 17, a hand push rod 18, a torsion spring 19, an elastic buckle seat 20, a fixed shaft 21, a rear wheel rail 22, a rear wheel 23, a fixed buckle 24, a grab rail buckle 25, a rear wheel rail clamp groove 26 and a push rail positioning buckle groove 27.
Detailed Description
Fig. 1 to 8 show that the foldable stroller according to the present invention comprises left and right handle bars 2, 4, a front wheel frame 16, a front wheel 17, left and right rear wheel bars 22, a rear wheel 23, a hand push bar 18, a seat cushion 3, and a rotary joint assembly, wherein the rotary joint assembly comprises left and right end covers 7, left and right handle bar joints 5, a push rod joint 8, left and right rear wheel bar joints 10, and a front wheel frame joint 13, the left and right handle bars 2, 4 are correspondingly fixed on the left and right handle bar joints 5, the hand push bar 18 is fixed on the push rod joint 8, the left and right rear wheel bars 22 are correspondingly fixed on the left and right rear wheel bar joints 10, and the front wheel frame 16 is correspondingly fixed on the front wheel frame joint 13; the left and right handrail rod joints 5 and the push rod joint 8, the left and right rear wheel rod joints 10 and the front wheel frame joint 13 are arranged on the left and right end covers 7 in parallel up and down through a fixed shaft 21; the left and right grab rail joints 5 are symmetrically arranged at two sides of the push rod joint 8, and the left and right rear wheel rod joints 10 are symmetrically arranged at two sides of the front wheel frame joint 13; a handrail rod limiting block 6 and a push rod sliding groove 9 for controlling the spreading angle of the left and right handrail rods 2 and 4 and the hand push rod 18 are correspondingly arranged between the left and right handrail rod joints 5 and the push rod joint 8; a rear wheel rod limiting block 11 and a front wheel frame sliding groove 14 for controlling the supporting angle of the left and right rear wheel rods 22 and the front wheel frame 16 are correspondingly arranged between the left and right rear wheel rod joints 10 and the front wheel frame joint 13; the front wheel frame joint 13 can lock the push rod joint 8 by a locking mechanism and cannot rotate. The locking mechanism comprises a front wheel frame fastener 12 hinged on the front wheel frame joint 13 and a push rod positioning buckle groove 27 arranged on the push rod joint 8, and the front wheel frame fastener 12 is locked on the push rod positioning buckle groove 27 when the front wheel frame fastener is unfolded for use.
In order to guarantee to strut to connect reliably when using, cushion 3 articulate on controlling handrail pole 2, 4, be equipped with latch mechanism between cushion 3 and the handspike 18, latch mechanism including fixing fixed hasp 24 on cushion 3, setting on the handspike 18 and with fixed hasp 24 matched with elasticity knot seat 20, fixed hasp 24 lock joint locks cushion 3 on elasticity knot seat 20 when expanding the use. The left and right grab rail joints 5 and the left and right rear wheel rod joints 10 are provided with a positioning mechanism, the positioning mechanism comprises grab rail buckles 25 arranged on the left and right grab rail joints 5 and rear wheel rod clamping grooves 26 arranged on the left and right rear wheel rod joints 10, and the grab rail buckles 25 are buckled on the rear wheel rod clamping grooves 26 when the foldable bicycle is unfolded for use.
In order to ensure the use safety, the left and right grab bars 2, 4 are connected with a reversible protective ferrule 1. In order to ensure the stability of use, the pedal 15 is fixed on the front wheel frame 16, at least one front wheel 17 is arranged on the front wheel frame 16, and the rear wheels 23 are rotatably arranged on the left and right rear wheel rods 22 correspondingly.
In order to reduce the folding height, the hand push rod 18 is a telescopic rod with the length adjustable, and a hand push handle is fixed on the hand push rod 18.
When the invention is unfolded for use, the left and right rear wheel rods 22 are rotated, the left and right rear wheel rods 22 drive the left and right rear wheel rod joints 10 to rotate the limit angle of the front wheel frame sliding groove relative to the front wheel frame joint 13, so that the front wheel 16 frame and the left and right rear wheel rods 22 form a herringbone structure; the child stroller is characterized in that the protective ring 1 is turned over, the hand push rod 18 is pulled upwards, the hand push rod 18 drives the push rod joint 8 to rotate by the limit angle of the push rod sliding groove 9, the left and right handrail rod joints 5 are driven to rotate through the handrail rod limit blocks 6 until the handrail rod buckles 25 on the left and right handrail rod joints 5 are buckled to the rear wheel rod clamping grooves 26, the front wheel frame buckle 12 is pulled to be buckled into the push rod clamping grooves 27 for locking, finally the seat cushion 3 is turned over, the fixed buckle 24 on the seat cushion 3 is buckled to the elastic buckle seat 20 on the hand push rod 18, and the length of the hand push rod 18 is adjusted.
When the folding cushion is folded, firstly, the hand push rod 18 is contracted, the protective sleeve ring 1 is turned over, the wrench of the elastic buckle seat 20 is pulled to separate the fixed buckle 24 from the elastic buckle seat 20, and the buckle mechanism of the cushion 3 is released; then, the front wheel frame fastener 12 is pulled to separate the front wheel frame fastener 12 from the push rod clamping groove 27, and the locking of the front wheel frame joint 13 and the push rod joint 8 is released; then the hand push rod 18 is folded with the left and right grab bars 2, 4, the front wheel frame 16 and the left and right rear wheel bars 22 are folded, and then the whole is folded, as shown in fig. 7; finally, the turning protection ring 1 is sleeved on the hand push rod 18, as shown in fig. 8, thereby completing the folding created by the invention.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, and simple modifications, equivalent changes and modifications may be made without departing from the technical solutions of the present invention.
Claims (7)
1. The utility model provides a foldable children's handcart, includes about handrail pole (2, 4), front wheel carrier (16), front wheel (17), controls rear wheel pole (22), rear wheel (23), handspike (18), cushion (3), revolute joint subassembly, characterized by: the rotary joint assembly comprises a left end cover (7), a right end cover (7), a left handrail rod joint (5), a right handrail rod joint (5), a push rod joint (8), a left rear wheel rod joint (10), a right rear wheel rod joint (13), a left handrail rod (2), a right handrail rod (4) and a left rear wheel rod joint (5), a push rod (18) is fixed on the push rod joint (8), a right rear wheel rod (22) and a left rear wheel rod joint (10) are correspondingly fixed on the left rear wheel rod joint and the right rear wheel rod joint (10), and a front wheel frame (16) is correspondingly fixed on the front wheel frame joint (13; the left and right grab rail rod joints (5) and the push rod joint (8), the left and right rear wheel rod joints (10) and the front wheel carrier joint (13) are arranged on the left and right end covers (7) in parallel up and down through a fixed shaft (21); the left and right grab rail joints (5) are symmetrically arranged at two sides of the push rod joint (8), and the left and right rear wheel rod joints (10) are symmetrically arranged at two sides of the front wheel frame joint (13); a grab rail limit block (6) and a push rod chute (9) for controlling the spreading angle of the left and right grab rails (2, 4) and the hand push rod (18) are correspondingly arranged between the left and right grab rail joints (5) and the push rod joint (8); a rear wheel rod limiting block (11) and a front wheel frame sliding groove (14) for controlling the supporting angle of the left and right rear wheel rods (22) and the front wheel frame (16) are correspondingly arranged between the left and right rear wheel rod joints (10) and the front wheel frame joint (13); the front wheel frame joint (13) can lock the push rod joint (8) from rotating through a locking mechanism.
2. The foldable child cart of claim 1, wherein: cushion (3) articulate on controlling bar (2, 4), be equipped with latch mechanism between cushion (3) and handspike (18), latch mechanism including fixing fixed hasp (24) on cushion (3), set up on handspike (18) and detain seat (20) with fixed hasp (24) matched with elasticity, fixed hasp (24) lock joint locks cushion (3) on elasticity detains seat (20) when expanding the use.
3. The foldable child stroller of claim 1 or 2, wherein: the locking mechanism comprises a front wheel frame fastener (12) hinged on a front wheel frame joint (13) and a push rod positioning buckle groove (27) arranged on a push rod joint (8), and the front wheel frame fastener (12) is locked on the push rod positioning buckle groove (27) when the front wheel frame is unfolded for use.
4. The foldable child cart of claim 3, wherein: the left and right grab rail joints (5) and the left and right rear wheel rod joints (10) are provided with a positioning mechanism, the positioning mechanism comprises grab rail buckles (25) arranged on the left and right grab rail joints (5) and rear wheel rod clamping grooves (26) arranged on the left and right rear wheel rod joints (10), and the grab rail buckles (25) are buckled on the rear wheel rod clamping grooves (26) when the foldable bicycle is unfolded for use.
5. The foldable child cart of claim 4, wherein: the left and right grab bars (2, 4) are connected with a reversible protective ferrule (1).
6. The foldable child cart of claim 5, wherein: the front wheel frame (16) is fixed with a pedal (15), the front wheel frame (16) is provided with at least one front wheel (17), and the rear wheels (23) are rotatably arranged on the left and right rear wheel rods (22) correspondingly.
7. The foldable child cart of claim 6, wherein: the hand push rod (18) is a telescopic rod with the length adjustable, and a hand push handle is fixed on the hand push rod (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766359.8A CN108974092B (en) | 2018-07-12 | 2018-07-12 | Folding children's barrow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810766359.8A CN108974092B (en) | 2018-07-12 | 2018-07-12 | Folding children's barrow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108974092A CN108974092A (en) | 2018-12-11 |
| CN108974092B true CN108974092B (en) | 2020-09-15 |
Family
ID=64537924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810766359.8A Active CN108974092B (en) | 2018-07-12 | 2018-07-12 | Folding children's barrow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108974092B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1561667B1 (en) * | 2004-02-03 | 2011-05-25 | Wonderland Nurserygoods Co., Ltd. | Stroller |
| US9604660B1 (en) * | 2015-10-08 | 2017-03-28 | Dongguan Master Kids Products Co., Ltd. | Foldable stroller to form a trolley |
| CN105346648B (en) * | 2015-11-30 | 2018-02-27 | 迈古贸易（上海）有限公司 | Foldable baby carriage |
| CN207595166U (en) * | 2017-12-11 | 2018-07-10 | 东莞市豫哲信五金塑胶制品有限公司 | A Practical Twisting Cart With Convenient Adjustment |
-
2018
- 2018-07-12 CN CN201810766359.8A patent/CN108974092B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108974092A (en) | 2018-12-11 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200709 Address after: 321300 Da Fen Shan Keng, machetou village, Jiangnan street, Yongkang City, Jinhua City, Zhejiang Province Applicant after: Yongkang sudilo industry and Trade Co., Ltd Address before: 321300, Jinhua City, Zhejiang province Yongkang Jiangnan Street Ma head village Applicant before: Chen Zheng |
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| GR01 | Patent grant |