CN107226121B - Foldable baby carriage frame - Google Patents
Foldable baby carriage frame Download PDFInfo
- Publication number
- CN107226121B CN107226121B CN201710572435.7A CN201710572435A CN107226121B CN 107226121 B CN107226121 B CN 107226121B CN 201710572435 A CN201710572435 A CN 201710572435A CN 107226121 B CN107226121 B CN 107226121B
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- CN
- China
- Prior art keywords
- joint block
- rod
- seat
- central shaft
- stopper
- 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
- B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
- B62B2205/003—Hand-propelled vehicles or sledges being foldable or dismountable when not in use with actuation mechanisms which drive the folding or unfolding operation
Abstract
The invention discloses a foldable baby carriage frame, which comprises a front foot rod, a rear foot rod, a seat supporting rod, a multi-stage telescopic hand push rod and a folding joint, wherein the front foot rod is connected with the rear foot rod through the seat supporting rod; the folding joint comprises a front foot rod joint block, a rear foot rod joint block, a seat rod joint block, a hand push rod joint block and a central shaft; the front foot bar joint block and the seat bar joint block are fixedly connected with a central shaft, the rear foot bar joint block is rotatably arranged on the central shaft, the hand push bar joint block is rotatably arranged on the central shaft, the central shaft is rotatably connected with a clamping and locking assembly capable of simultaneously locking the rear foot bar joint block, the seat bar joint block and the hand push bar joint block, and the central shaft is also provided with an unlocking push rod for driving the clamping and locking assembly to move and unlock; after the push rod unlocking device is unlocked, the secondary telescopic rod retracts into the primary telescopic rod, so that the unlocking push rod is driven to drive the clamping and locking assembly to move, and the rear foot rod joint block, the seat rod joint block and the hand push rod joint block are unlocked; has the advantages of simple structure, less folding steps and low manufacturing cost.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a stroller frame for assembling a stroller, in particular to a foldable stroller frame.
[ background of the invention ]
Most of the existing foldable baby carriers generally comprise a front foot rod, a front wheel component, a rear foot rod, a rear wheel component, a hand push rod and a plurality of connecting rods, a multi-connecting-rod type folding mechanism is adopted, the number of folded parts is large, the structure is complex, the time is long, the looseness and the shaking are easy, so that the whole baby carrier is unstable, and the multi-connecting-rod type folding mechanism has multiple operation steps and is not tidy.
The invention is researched and proposed aiming at the defects of the prior art.
[ summary of the invention ]
The invention aims to provide a foldable baby carrier frame which is simple in joint structure, few in folding steps and low in manufacturing cost.
In order to solve the technical problem, the invention provides a foldable baby carriage frame, which comprises:
the lower end of the front foot rod is provided with a front wheel component;
the lower end of the rear foot rod is provided with a rear wheel assembly;
the seat support rod is used for mounting the seat frame;
the multi-stage telescopic hand push rod comprises a multi-stage telescopic rod group and a hand push rod arranged at the tail end of the multi-stage telescopic rod group, the multi-stage telescopic rod group comprises a first-stage telescopic rod, a second-stage telescopic rod is connected in the first-stage telescopic rod in a sliding mode, and the hand push rod is provided with a push rod unlocking device capable of enabling the second-stage telescopic rod to be unlocked relative to the first-stage telescopic rod;
the folding joint comprises a front foot rod joint block fixedly connected with the upper end of the front foot rod, a rear foot rod joint block fixedly connected with the upper end of the rear foot rod, a seat rod joint block fixedly connected with the lower end of the seat supporting rod, a hand push rod joint block fixedly connected with the lower end of the primary telescopic rod and a central shaft; the front foot bar joint block and the seat bar joint block are fixedly connected with a central shaft, the rear foot bar joint block is rotatably arranged on the central shaft and is positioned between the front foot bar joint block and the seat bar joint block, the hand push bar joint block is rotatably arranged on the central shaft and is tightly attached to the seat bar joint block, the central shaft is rotatably connected with a clamping and locking assembly capable of simultaneously locking the rear foot bar joint block, the seat bar joint block and the hand push bar joint block, the central shaft is also provided with an unlocking push rod for driving the clamping and locking assembly to unlock, and the unlocking push rod extends into the primary telescopic rod;
after the push rod unlocking device unlocks, the second-stage telescopic rod retracts into the first-stage telescopic rod, and then the unlocking push rod is driven to drive the clamping and locking assembly to move so as to unlock the rear foot rod joint block, the seat rod joint block and the hand push rod joint block.
The foldable baby carriage frame comprises a clamping ring body which is rotatably connected with a central shaft and can axially slide along the central shaft, a first limiting block, a second limiting block and a third limiting block which are different in length are axially arranged on the outer circumferential surface of the clamping ring body, a first limiting groove which is always meshed with the first limiting block is formed in the rear foot rod joint block, a second limiting structure matched with the second limiting block is arranged on the seat rod joint block, a third limiting structure matched with the third limiting block is arranged on the hand push rod joint block, and a driving spring which drives the second limiting block and the third limiting block on the clamping ring body to be respectively inserted into the second limiting structure and the third limiting structure is arranged between the rear foot rod joint block and the clamping ring body to fix the rear foot rod joint block and the hand push rod joint block relative to the central shaft.
The central shaft is hollow, the unlocking push rod is connected in the central shaft in a sliding manner, and the unlocking push rod is provided with a positioning jacking pin for jacking the clamping ring body; the unlocking push rod is provided with a guide inclined plane which is matched with the secondary telescopic rod.
According to the foldable baby carriage frame, the fan-shaped limiting block is arranged on one side of the rear foot rod joint block, and the fan-shaped limiting groove matched with the fan-shaped limiting block to limit the rotating range of the unlocked rear seat rod joint block is formed in the seat rod joint block.
According to the foldable baby carriage frame, the other side of the rear foot rod joint block is provided with the clamping and locking groove, the front foot rod joint block is provided with the clamping and locking block which is inserted into the clamping and locking groove after the rear foot rod is folded and the spring for driving the clamping and locking block to act, and the front foot rod joint block is further provided with the clamping and locking button for driving the clamping and locking block to withdraw from the clamping and locking groove.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the front foot rod, the rear foot rod, the seat supporting rod and the primary telescopic rod are simultaneously connected at the folding joint, and when the baby carriage is unfolded, the rear foot rod joint block and the hand push rod joint block are simultaneously locked with the seat rod joint block fixed on the central shaft, so that the stability and the safety of the baby carriage frame in an unfolded state are ensured, and the integral structure of the baby carriage frame is simplified.
2. Through unblock second grade telescopic link, and then with back foot bar joint piece and the unblock of handspike joint piece, then can fold up back foot bar and multistage scalable handspike, the step of unblock is few and the unblock step is simple.
3. The rear foot bar joint block is provided with a fan-shaped limiting block on one side, and the seat bar joint block is provided with a fan-shaped limiting groove matched with the fan-shaped limiting block, so that the shearing force of the clamping and locking ring body when the frame of the baby carriage is unfolded can be reduced, and the rotating range of the unlocked rear seat bar joint block can be limited.
4. The other side of the rear foot bar joint block is provided with a clamping lock groove, the front foot bar joint block is provided with a clamping lock block inserted into the clamping lock groove after the rear foot bar is folded and a spring driving the clamping lock block to move, the front foot bar joint block is also provided with a clamping lock key driving the clamping lock block to withdraw from the clamping lock groove, the rear foot bar of the baby carriage frame can be prevented from rotating randomly under a folding state, the rear foot bar can be restored to a free rotating state again when needed, and the clamping lock key is only required to be pressed down to enable the clamping lock block to withdraw from the clamping lock groove.
[ description of the drawings ]
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic view of the present invention in an expanded state;
FIG. 2 is an enlarged view of portion A labeled in FIG. 1;
FIG. 3 is a side view of the connection of the folding joint with the front foot bar, the rear foot bar, the seat support bar and the primary telescoping bar of the present invention;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 5 is an enlarged view of portion C labeled in FIG. 4;
FIG. 6 is an exploded view of a folding joint according to the present invention;
FIG. 7 is a second exploded view of the folding joint of the present invention;
FIG. 8 is an enlarged view of portion D labeled in FIG. 7;
FIG. 9 is a perspective sectional view of a folding joint of the present invention;
FIG. 10 is a partial schematic view of a seat bar joint block and latch ring body of the present invention;
fig. 11 is a folded state view of the present invention.
[ detailed description ] embodiments
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 7, a foldable stroller frame in the present embodiment includes: the lower end of the front foot rod 100 is provided with a front wheel assembly 101; the lower end of the rear foot rod 200 is provided with a rear wheel component 201; a seat support rod 300 for mounting the seat frame 500; the multi-stage telescopic hand push rod 400 comprises a multi-stage telescopic rod group 401 and a hand push rod 402 arranged at the tail end of the multi-stage telescopic rod group 401, wherein the multi-stage telescopic rod group 401 comprises a first-stage telescopic rod 4011, a second-stage telescopic rod 4012 is connected in the first-stage telescopic rod 4011 in a sliding mode, and a push rod unlocking device 403 capable of enabling the second-stage telescopic rod 4012 to be unlocked relative to the first-stage telescopic rod 4011 is arranged on the hand push rod 402; the folding joint comprises a front foot rod joint block 1 fixedly connected with the upper end of a front foot rod 100, a rear foot rod joint block 2 fixedly connected with the upper end of a rear foot rod 200, a seat rod joint block 3 fixedly connected with the lower end of a seat supporting rod 300, a hand push rod joint block 4 fixedly connected with the lower end of a primary telescopic rod 4011 and a central shaft 5; the front foot bar joint block 1 and the seat bar joint block 3 are fixedly connected with a central shaft 5, the rear foot bar joint block 2 is rotatably arranged on the central shaft 5 and is positioned between the front foot bar joint block 1 and the seat bar joint block 3, the hand push bar joint block 4 is rotatably arranged on the central shaft 5 and is tightly attached to the seat bar joint block 3, the central shaft 5 is rotatably connected with a latch assembly 6 capable of simultaneously locking the rear foot bar joint block 2, the seat bar joint block 3 and the hand push bar joint block 4, the central shaft 5 is also provided with an unlocking push rod 7 for driving the latch assembly 6 to unlock, and the unlocking push rod 7 extends into the 4014014014011; after the push rod unlocking device 403 is unlocked, the second-stage telescopic rod 4012 retracts into the first-stage telescopic rod 4011, and then the unlocking push rod 7 is driven to drive the locking assembly 6 to move, so that the rear foot rod joint block 2, the seat rod joint block 3 and the hand push rod joint block 4 are unlocked. According to the invention, the front foot bar, the rear foot bar, the seat support bar and the first-stage telescopic bar are simultaneously connected at the folding joint, when the baby carriage is unfolded, the rear foot bar joint block 2 and the hand push bar joint block 4 are simultaneously locked with the seat bar joint block 3 fixed on the central shaft, so that the stability and the safety of the baby carriage frame in the unfolded state are ensured, the overall structure of the baby carriage frame is simplified, the rear foot bar joint block 2 and the hand push bar joint block 4 are unlocked by unlocking the second-stage telescopic bar 4012, and then the rear foot bar 200 and the multi-stage telescopic hand push bar 400 can be folded, so that the unlocking steps are few and are simple.
As shown in fig. 5 to 10, the locking assembly 6 includes a locking ring body 61 rotatably connected to the central shaft 5 and capable of sliding axially along the central shaft 5, a first stopper 611, a second stopper 612, and a third stopper 613 which are different in length are axially disposed on an outer circumferential surface of the locking ring body 61, a first limit groove 21 which is engaged with the first stopper 611 all the time is disposed on the rear foot bar joint block 2, a second limit structure 31 which is engaged with the second stopper 612 is disposed on the seat bar joint block 3, a third limit structure 41 which is engaged with the third stopper 613 is disposed on the hand push bar joint block 4, and a driving spring 62 which drives the second stopper 612 and the third stopper 613 disposed on the locking ring body 61 to be inserted into the second limit structure 31 and the third limit structure 41 respectively is disposed between the rear foot bar joint block 2 and the locking ring body 61, so as to fix the rear foot bar joint block 2 and the hand push bar joint block 4 relative to the central shaft 5; because the front foot rod joint block 1 and the seat rod joint block 3 are fixedly connected with the central shaft 5; when the second limiting block 612 and the third limiting block 613 on the latch ring body 61 are inserted into the second limiting structure 31 and the third limiting structure 41, respectively, the front foot bar, the rear foot bar, the seat supporting bar and the primary telescopic bar cannot rotate relatively, i.e. are in a locked state, and the angles among the front foot bar, the rear foot bar, the seat supporting bar and the primary telescopic bar in the locked state can be easily designed to meet the overall layout of the stroller; when the second stopper 612 and the third stopper 613 on the latch ring body 61 exit from the second stopper structure 31 and the third stopper structure 41 simultaneously and are unlocked, the rear leg rod and the first-stage telescopic rod can freely rotate around the central axis, that is, the stroller can be folded, as shown in fig. 11.
The central shaft 5 is hollow, the unlocking push rod 7 is connected in the central shaft 5 in a sliding manner, and the unlocking push rod 7 is provided with a positioning jacking pin 71 for jacking the locking ring body 61; the unlocking push rod 7 is provided with a guide inclined surface 72 which is matched with the secondary telescopic rod 4012. The guide inclined surface 72 is used for pressing the guide inclined surface 72 to drive the unlocking push rod 7 to drive the locking ring body 61 to move for unlocking after the secondary telescopic rod 4012 is unlocked and then retracts into the primary telescopic rod 4011.
The back foot rod joint block 2 is provided with a fan-shaped limiting block 22 on one side, and the seat rod joint block 3 is provided with a fan-shaped limiting groove 32 which is matched with the fan-shaped limiting block 22 to limit the rotation range of the unlocked back seat rod joint block 3. Meanwhile, in order to reduce the shearing force applied to the latch ring body 61 when the stroller frame is unfolded, the limiting block 22 just protrudes to the limit position at one side of the limiting groove 32 when the stroller frame is in the unfolded state.
In order to prevent the rear foot bar 200 of the baby carriage frame from rotating randomly in a folded state, the other side of the rear foot bar joint block 2 is provided with a clamping and locking groove 23, the front foot bar joint block 1 is provided with a clamping and locking block 11 which is inserted into the clamping and locking groove 23 after the rear foot bar 200 is folded and a spring 12 driving the clamping and locking block 11 to move, and the front foot bar joint block 1 is also provided with a clamping and locking button 13 driving the clamping and locking block 11 to withdraw from the clamping and locking groove 23. When the rear foot lever is required to restore to the free rotation state, the locking button 13 is only required to be pressed down to enable the locking block to withdraw from the locking groove.
The steps of the folded and re-unfolded stroller will now be briefly described:
a. the multistage telescopic hand push rod 400 is pulled open, that is, the two-stage telescopic rod 4012 extends out of the one-stage telescopic rod 4011, and the unlocking push rod 7 is prevented from being propped against by the two-stage telescopic rod 4012;
b. when the rear leg bar and the multi-stage retractable hand push bar 400 are rotated to the extended positions, the second stopper 612 and the third stopper 613 of the latch ring body 61 are inserted into the second stopper structure 31 and the third stopper structure 41 under the action of the driving spring 62, so as to achieve the locked state.
Claims (4)
1. A foldable stroller frame, comprising: the lower end of the front foot rod (100) is provided with a front wheel assembly (101);
the rear leg rod (200), the lower end of the rear leg rod (200) is provided with a rear wheel component (201);
a seat support bar (300) for mounting the seat frame (500);
the multi-stage telescopic hand push rod (400) comprises a multi-stage telescopic rod group (401) and a hand push rod (402) arranged at the tail end of the multi-stage telescopic rod group (401), the multi-stage telescopic rod group (401) comprises a first-stage telescopic rod (4011), a second-stage telescopic rod (4012) is connected in the first-stage telescopic rod (4011) in a sliding mode, and a push rod unlocking device (403) capable of enabling the second-stage telescopic rod (4012) to be unlocked relative to the first-stage telescopic rod (4011) is arranged on the hand push rod (402);
the folding joint comprises a front foot rod joint block (1) fixedly connected with the upper end of a front foot rod (100), a rear foot rod joint block (2) fixedly connected with the upper end of a rear foot rod (200), a seat rod joint block (3) fixedly connected with the lower end of a seat supporting rod (300), a hand push rod joint block (4) fixedly connected with the lower end of a primary telescopic rod (4011) and a central shaft (5); the front foot bar joint block (1) and the seat bar joint block (3) are fixedly connected with a central shaft (5), the rear foot bar joint block (2) is rotatably arranged on the central shaft (5) and is positioned between the front foot bar joint block (1) and the seat bar joint block (3), the hand push bar joint block (4) is rotatably arranged on the central shaft (5) and is tightly attached to the seat bar joint block (3), the central shaft (5) is rotatably connected with a locking assembly (6) capable of simultaneously locking the rear foot bar joint block (2), the seat bar joint block (3) and the hand push bar joint block (4), the central shaft (5) is further provided with an unlocking push rod (7) for driving the locking assembly (6) to unlock, and the unlocking push rod (7) extends into a primary telescopic rod (4011); after the push rod unlocking device (403) is unlocked, the secondary telescopic rod (4012) retracts into the primary telescopic rod (4011), and then the unlocking push rod (7) is driven to drive the clamping and locking assembly (6) to move so as to unlock the rear foot rod joint block (2), the seat rod joint block (3) and the hand push rod joint block (4); the central shaft (5) is hollow, and the unlocking push rod (7) is connected in the central shaft (5) in a sliding manner.
2. A foldable stroller frame according to claim 1, wherein the latch assembly (6) comprises a latch ring body (61) rotatably connected to the central shaft (5) and axially slidable along the central shaft (5), the latch ring body (61) has an outer circumferential surface provided with a first stopper (611), a second stopper (612) and a third stopper (613) of different lengths along the axial direction, the rear foot bar joint block (2) is provided with a first stopper groove (21) engaged with the first stopper (611) all the time, the seat bar joint block (3) is provided with a second stopper (31) engaged with the second stopper (612), the handle bar joint block (4) is provided with a third stopper (41) engaged with the third stopper (613), the second stopper (612) and the third stopper (613) provided on the drive latch ring body (61) between the rear foot bar joint block (2) and the latch ring body (61) are respectively inserted into the second stopper (31) and the third stopper (613) to fix the handle bar (4) relative to the central shaft (5).
3. A foldable stroller frame according to any one of claims 1 to 2, wherein a fan-shaped stopper (22) is provided at one side of the rear leg joint (2), and a fan-shaped stopper groove (32) cooperating with the fan-shaped stopper (22) to limit the rotation range of the unlocked rear seat joint (3) is provided on the seat joint (3).
4. A foldable stroller frame according to claim 3, wherein the other side of the rear leg joint block (2) is provided with a latch groove (23), the front leg joint block (1) is provided with a latch block (11) inserted into the latch groove (23) after the rear leg (200) is folded and a spring (12) for driving the latch block (11) to move, and the front leg joint block (1) is further provided with a latch button (13) for driving the latch block (11) to withdraw from the latch groove (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710572435.7A CN107226121B (en) | 2017-07-14 | 2017-07-14 | Foldable baby carriage frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710572435.7A CN107226121B (en) | 2017-07-14 | 2017-07-14 | Foldable baby carriage frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107226121A CN107226121A (en) | 2017-10-03 |
| CN107226121B true CN107226121B (en) | 2023-04-07 |
Family
ID=59957002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710572435.7A Active CN107226121B (en) | 2017-07-14 | 2017-07-14 | Foldable baby carriage frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107226121B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107757688A (en) * | 2017-11-20 | 2018-03-06 | 中山恒之宝婴童用品有限公司 | A kind of perambulator |
| GB2591211B (en) * | 2018-09-18 | 2022-04-27 | Jijibaba Ltd | A push chair |
| CN114516361A (en) * | 2020-11-18 | 2022-05-20 | 明门瑞士股份有限公司 | Frame of baby carriage |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828119B (en) * | 2015-04-10 | 2018-01-02 | 好孩子儿童用品有限公司 | Children trolley |
| CN205769517U (en) * | 2016-05-10 | 2016-12-07 | 好孩子儿童用品有限公司 | Children trolley |
| CN106004969B (en) * | 2016-06-23 | 2018-10-02 | 中山莱瑞科技有限公司 | A kind of infant's vehicle frame |
| CN205819297U (en) * | 2016-06-30 | 2016-12-21 | 浙江晨辉婴宝儿童用品有限公司 | The baby card folding structure improved and stroller |
| CN106864534B (en) * | 2017-03-06 | 2023-05-05 | 宋立新 | Three-fold stroller frame |
| CN206968743U (en) * | 2017-07-14 | 2018-02-06 | 张发辉 | A kind of foldable stroller vehicle frame |
-
2017
- 2017-07-14 CN CN201710572435.7A patent/CN107226121B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107226121A (en) | 2017-10-03 |
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