CN108327768A - It is a kind of to be convenient for upper perambulator downstairs - Google Patents
It is a kind of to be convenient for upper perambulator downstairs Download PDFInfo
- Publication number
- CN108327768A CN108327768A CN201810121785.6A CN201810121785A CN108327768A CN 108327768 A CN108327768 A CN 108327768A CN 201810121785 A CN201810121785 A CN 201810121785A CN 108327768 A CN108327768 A CN 108327768A
- Authority
- CN
- China
- Prior art keywords
- groups
- shaft
- car body
- hole
- downstairs
- 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.)
- Pending
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
- B62B9/02—Accessories or details specially adapted for children's carriages or perambulators providing for travelling up or down a flight of stairs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
- B62B2301/20—Resilient wheel suspension using springs
Abstract
The present invention relates to the technical fields of daily necessities auxiliary equipment, being convenient for upper perambulator downstairs more particularly to a kind of, go downstairs in convenience, save adult's muscle power；And the comfort of baby's seating is improved, practicability is improved；Including car body, the top of car body is provided with holding tank；It further include supply unit, motor, shaft and control switch, the output end of motor is provided with driving gear, the front left side and left rear side of car body bottom end are respectively arranged with front shoe and rear fixed plate, the front and back front through hole penetrated through and rear through-hole are respectively arranged in the middle part of front shoe and rear fixed plate, the inside of front through hole and rear through-hole is installed with preceding ball bearing and rear ball bearing respectively, driven gear is provided in the middle part of shaft, the front-end and back-end of shaft are both provided with Stair climbing device, Stair climbing device includes three groups of support devices and three groups of idler wheels, support device includes pillar and the casing that both ends are all closed, casing is internally provided with tube chamber, limiting plate and the first spring are provided in tube chamber.
Description
Technical field
The present invention relates to the technical fields of daily necessities auxiliary equipment, more particularly to a kind of convenient for upper baby downstairs
Vehicle.
Background technology
It is well known that perambulator be it is a kind of providing the convenient tool car designed for baby's outdoor activities, it is daily
It is widely used in a variety of applications in the field of life；Existing perambulator includes car body, and the top of car body is provided with holding tank, car body
Front left side, left rear side, forward right side and the right lateral side of bottom end are both provided with idler wheel, and the right end of car body is provided with push rod；Existing baby
Youngster's vehicle pushes car body by the cooperation of idler wheel and push rod in use, baby is placed in the holding tank of car body；It is existing
It is found in perambulator use, brings larger inconvenience to adult when upper go downstairs, cause use reliability relatively low；And
It compares during moving jolts, and influences the comfort of baby's seating, causes practicability relatively low.
Invention content
In order to solve the above technical problems, in a kind of convenience of present invention offer downstairs, saving adult's muscle power, raising uses reliable
Property；And the comfort for improving baby's seating improves the upper perambulator downstairs of being convenient for of practicability.
The a kind of of the present invention is provided with holding tank convenient for upper perambulator downstairs, including car body, the top of car body；Further include
Supply unit, motor, shaft and control switch, the supply unit and motor are installed in the bottom end of car body, and in motor
Output end is provided with driving gear, and the front left side and left rear side of the car body bottom end are respectively arranged with front shoe and fix afterwards
Plate, and the front and back front through hole penetrated through and rear through-hole, the front through hole are respectively arranged in the middle part of front shoe and rear fixed plate
It is installed with preceding ball bearing and rear ball bearing respectively with the inside of rear through-hole, the front end of the shaft is from front shoe
Rear end passes through preceding ball bearing to the front end of front shoe, and the rear end of shaft passes through rear ball bearing extremely from the front end of rear fixed plate
The rear end of rear fixed plate, and driven gear is provided in the middle part of shaft, the driven gear and driving gear engagement, shaft
Front-end and back-end are both provided with Stair climbing device, and the Stair climbing device includes three groups of support devices and three groups of idler wheels, three groups of branch
One end of support arrangement is mounted in the circumferential direction of shaft, and the other end of three groups of support devices is connect with three groups of idler wheels respectively, three groups of branch
Support arrangement is located on same perpendicular, and the angle between every two groups of support devices is 120 °, the control switch peace
It mounted in the right end of car body, and controls switch and motor is electrically connected with supply unit, and controls switch and be electrically connected with motor；
The support device includes pillar and the casing that both ends are all closed, and one end of described sleeve pipe is connect with shaft, described sleeve pipe it is interior
Portion is provided with tube chamber, and limiting plate and the first spring are provided in tube chamber, and first spring one end is with tube chamber adjacent to shaft
One end connection, the other end of the first spring connect with limiting plate adjacent to one end of shaft, and the one end of casing far from shaft is arranged
Have a mounting hole, the pillar stretched in tube chamber across mounting hole adjacent to one end of shaft and with the one end of limiting plate far from shaft
Connection, the idler wheel are mounted on the one end of pillar far from shaft.
The present invention's is a kind of convenient for upper perambulator downstairs, and the forward right side and front left side of the car body bottom end are both provided with branch
Leg, and it is both provided with universal wheel in the bottom end of two groups of supporting legs.
The a kind of of the present invention further includes two groups of outer tubes and two groups of supporting rods convenient for upper perambulator downstairs, outside described two groups
The right side and the right side at the top of rear end that pipe is separately mounted to car body front top, the left end of two groups of supporting rods are inserted into respectively
Inside the right end of two groups of outer tubes, and the right side between two groups of supporting rods is provided with push rod in the front-back direction, the inner roof wall of outer tube
On be provided with regulating tank, and adjustable plate is provided in regulating tank, it is logical that the top of outer tube is provided with pressing of being communicated with regulating tank
Hole, and bar is pressed pressing to be provided in through-hole, the bottom end for pressing bar stretch in regulating tank and with the top of adjustable plate
Middle part connects, and spaced set has several limit chambers inside the top of the supporting rod, and the second bullet is provided in limit chamber
Spring and baffle, the top and bottom end of the second spring are connect with the inner bottom wall of the bottom end of baffle and limit chamber respectively, supporting rod
Top spaced set there are several limiting slots, several limiting slots to be communicated respectively with several limit chambers, and in several limits
Tool is both provided with gag lever post in slot, and the bottom end of the gag lever post stretches in limit chamber and connect with the top of baffle, wherein one
The top of group gag lever post stretches in regulating tank and is contacted with the bottom end of adjustable plate.
The present invention's is a kind of convenient for upper perambulator downstairs, and the size of the adjustable plate is more than the size for pressing through-hole, institute
The size for stating baffle is more than the size of limiting slot, and the top of the gag lever post is arc surface.
The a kind of of the present invention further includes the first connect band and the second connect band convenient for upper perambulator downstairs, and described first
With push rod slidable connection, the other end of the first connect band is provided with magic notice for one end of connect band and the second connect band
Patch, the other end of the second connect band are provided with velcro female patch.
The a kind of of the present invention further includes sky shade convenient for upper perambulator downstairs, the both ends of the sky shade respectively with vehicle
It is flexibly connected on the left of the front end of body and on the left of rear end.
Beneficial effects of the present invention are compared with prior art：By above-mentioned setting, when needing to climb building, opened by control
Motor is moved in start or stop, and motor drives driving gear rotation, driving gear to drive driven gear rotation, driven gear that shaft is driven to turn
Dynamic, shaft drives the radial rotating of three groups of support devices around the shaft, realizes automatic stari creeping, goes downstairs in convenience, saves adult's muscle power,
Improve use reliability；Usually realize the movement of car body by idler wheel rotation, and matching by limiting plate and the first spring
It closes and carries out damping, can play damping during car body is mobile and climbs building, improve the comfort that baby takes, carry
High practicability.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention；
Fig. 2 is the positive structure diagram of Stair climbing device of the present invention；
Fig. 3 is the left view structural representation of the present invention；
Fig. 4 is the structural schematic diagram of outer tube and supporting rod of the present invention access section；
It is marked in attached drawing：1, car body；2, motor；3, shaft；4, control switch；5, driving gear；6, front shoe；7, preceding ball
Bearing；8, driven gear；9, idler wheel；10, support device；11, pillar；12, casing；13, tube chamber；14, limiting plate；15, first
Spring；16, supporting leg；17, universal wheel；18, outer tube；19, supporting rod；20, push rod；21, regulating tank；22, adjustable plate；23, it presses
Bar；24, second spring；25, baffle；26, gag lever post；27, the first connect band；28, the second connect band；29, sky shade.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
As shown in Figures 1 to 4, of the invention a kind of to be set convenient for upper perambulator downstairs, including car body 1, the top of car body
It is equipped with holding tank；Further include supply unit, motor 2, shaft 3 and control switch 4, supply unit and motor are installed in car body
Bottom end, and the output end of motor is provided with driving gear 5, the front left side and left rear side of car body bottom end are respectively arranged with preceding fixation
Plate 6 and rear fixed plate, and the front and back front through hole penetrated through and rear through-hole are respectively arranged in the middle part of front shoe and rear fixed plate,
The inside of front through hole and rear through-hole is installed with preceding ball bearing 7 and rear ball bearing respectively, and the front end of shaft is from preceding fixation
The rear end of plate passes through preceding ball bearing to the front end of front shoe, and the rear end of shaft passes through rear ball axis from the front end of rear fixed plate
It holds to the rear end of rear fixed plate, and is provided with driven gear 8 in the middle part of shaft, driven gear and driving gear engagement, shaft
Front-end and back-end be both provided with Stair climbing device, Stair climbing device includes three groups of support devices 9 and three groups of idler wheels 10, three groups of supports dresses
The one end set is mounted in the circumferential direction of shaft, and the other end of three groups of support devices is connect with three groups of idler wheels respectively, three groups of support dresses
It it is 120 ° setting in the angle on same perpendicular, and between every two groups of support devices, control switch is mounted on car body
Right end, and control switch and motor is electrically connected with supply unit, and control switch and be electrically connected with motor；Support device
Including the casing 12 that pillar 11 and both ends are all closed, one end of casing is connect with shaft, and casing is internally provided with tube chamber 13, and
Limiting plate 14 and the first spring 15 are provided in tube chamber, the first spring one end is connect with tube chamber adjacent to one end of shaft, and first
The other end of spring is connect with limiting plate adjacent to one end of shaft, and the one end of casing far from shaft is provided with mounting hole, and pillar is adjacent
One end of nearly shaft stretches in tube chamber across mounting hole and is connect with the one end of limiting plate far from shaft, and idler wheel is mounted on pillar
One end far from shaft；By above-mentioned setting, when needing to climb building, start motor by controlling to switch, motor drives driving tooth
Wheel rotation, driving gear drive driven gear rotation, driven gear to drive shaft rotation, shaft that three groups of support devices is driven to rotate
The radial rotating of axis realizes automatic stari creeping, goes downstairs in convenience, saves adult's muscle power, improve use reliability；Usually pass through idler wheel
Rotation carries out damping to realize the movement of car body by the cooperation of limiting plate and the first spring, in car body movement and climbs building
During can play damping, improve the comfort that baby takes, improve practicability.
The present invention's is a kind of convenient for upper perambulator downstairs, and the forward right side and front left side of car body bottom end are both provided with supporting leg
16, and it is both provided with universal wheel 17 in the bottom end of two groups of supporting legs；By above-mentioned setting, it is moved through in car body by the way that universal wheel is convenient
It is turned in journey, improves practicability.
The a kind of of the present invention further includes two groups of outer tubes 18 and two groups of supporting rods 19 convenient for upper perambulator downstairs, outside two groups
The right side and the right side at the top of rear end that pipe is separately mounted to car body front top, the left end of two groups of supporting rods are inserted into two groups respectively
Inside the right end of outer tube, and the right side between two groups of supporting rods is provided with push rod 20 in the front-back direction, on the inner roof wall of outer tube
It is provided with regulating tank 21, and is provided with adjustable plate 22 in regulating tank, the top of outer tube is provided with pressing of being communicated with regulating tank
Through-hole, and bar 23 is pressed pressing to be provided in through-hole, the bottom end for pressing bar stretch in regulating tank and with the top of adjustable plate
Middle part connects, and spaced set has several limit chambers inside the top of supporting rod, and second spring 24 is provided in limit chamber
With baffle 25, the top and bottom end of second spring are connect with the inner bottom wall of the bottom end of baffle and limit chamber respectively, the top of supporting rod
End spaced set has several limiting slots, several limiting slots to be communicated respectively with several limit chambers, and has in several limiting slots
It is provided with gag lever post 26, the bottom end of gag lever post stretches in limit chamber and connect with the top of baffle, one of which gag lever post
Top stretches in regulating tank and is contacted with the bottom end of adjustable plate；By above-mentioned setting, it is inserted into and is adjusted by the top of gag lever post
It in slot, is fixed between outer tube and supporting rod, bar is pressed by pushing, the bottom end for pressing bar pushes down on adjustable plate, adjusts
Section plate push gag lever post move down and gag lever post released into regulating tank, so as to be slided to supporting rod, to push rod with
The distance between car body is adjusted, and improves use reliability.
The present invention's is a kind of convenient for upper perambulator downstairs, and the size of adjustable plate is more than the size for pressing through-hole, baffle
Size is more than the size of limiting slot, and the top of gag lever post is arc surface；By above-mentioned setting, the top of gag lever post is arranged to justify
Cambered surface facilitates gag lever post to enter in the tube chamber of outer tube, improves use reliability.
The a kind of of the present invention further includes the first connect band 27 and the second connect band 28 convenient for upper perambulator downstairs, and first
With push rod slidable connection, the other end of the first connect band is provided with magic notice for one end of connect band and the second connect band
Patch, the other end of the second connect band are provided with velcro female patch；By above-mentioned setting, the first connect band and second can be connected
Band is entangled in the waist of adult, and makes the by the velcro female patch bonding of the magic notice of the first connect band patch and the second connect band
One connect band and the second connection band connection, it is convenient that the rear end of car body is supported when climbing building, improve practicability.
The a kind of of the present invention further includes sky shade 29 convenient for upper perambulator downstairs, the both ends of sky shade respectively with car body
Front end on the left of and rear end on the left of flexible connection；The baby in holding tank is hidden by sky shade pair by above-mentioned setting
Sun improves practicability.
The present invention's is a kind of convenient for upper perambulator downstairs, at work, when needing to climb building, is opened by controlling switch
Dynamic motor, motor drive driving gear rotation, driving gear that driven gear rotation, driven gear is driven to drive shaft rotation, turn
Axis drives the radial rotating of three groups of support devices around the shaft, realizes automatic stari creeping, goes downstairs in convenience, saves adult's muscle power, usually
Turned by idler wheel and the rotation of universal wheel is to realize the movement of car body, and is subtracted by the cooperation of limiting plate and the first spring
Shake can play damping during car body is mobile and climbs building, improve the comfort that baby takes, and improve practical
Property.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of convenient for upper perambulator downstairs, including car body（1）, car body（1）Top be provided with holding tank；Its feature exists
In further including supply unit, motor（2）, shaft（3）It is switched with control（4）, the supply unit and motor（2）It is installed in
Car body（1）Bottom end, and in motor（2）Output end be provided with driving gear（5）, the car body（1）The front left side of bottom end and
Left rear side is respectively arranged with front shoe（6）And rear fixed plate, and in front shoe（6）It is respectively set in the middle part of rear fixed plate
The inside of the front through hole penetrated through before and after having and rear through-hole, the front through hole and rear through-hole is installed with preceding ball bearing respectively
（7）With rear ball bearing, the shaft（3）Front end from front shoe（6）Rear end pass through preceding ball bearing（7）To preceding fixation
Plate（6）Front end, shaft（3）Rear end from the front end of rear fixed plate pass through rear ball bearing to the rear end of rear fixed plate, and
Shaft（3）Middle part be provided with driven gear（8）, the driven gear（8）And driving gear（5）Engagement, shaft（3）Front end
It is both provided with Stair climbing device with rear end, the Stair climbing device includes three groups of support devices（10）With three groups of idler wheels（9）, described three groups
Support device（10）One end be mounted on shaft（3）Circumferential direction on, three groups of support devices（10）The other end respectively with three groups of rollings
Wheel（9）Connection, three groups of support devices（10）On same perpendicular, and every two groups of support devices（10）Between angle
It is 120 °, the control switch（4）Mounted on car body（1）Right end, and control switch（4）And motor（2）And power supply
Device is electrically connected, and controls switch（4）With motor（2）Electrical connection；The support device（10）Including pillar（11）The both ends and
The casing being all closed（12）, described sleeve pipe（12）One end and shaft（3）Connection, described sleeve pipe（12）Be internally provided with tube chamber
（13）, and in tube chamber（13）Inside it is provided with limiting plate（14）With the first spring（15）, first spring（15）One end and tube chamber
（13）Neighbouring shaft（3）One end connection, the first spring（15）The other end and limiting plate（14）Neighbouring shaft（3）One end connect
It connects, casing（12）Far from shaft（3）One end be provided with mounting hole, the pillar（11）Neighbouring shaft（3）One end pass through it is solid
Determine hole and stretches to tube chamber（13）Interior and and limiting plate（14）Far from shaft（3）One end connection, the idler wheel（9）Mounted on pillar
（11）Far from shaft（3）One end.
2. as described in claim 1 a kind of convenient for upper perambulator downstairs, which is characterized in that the car body（1）The right side of bottom end
Front side and front left side are both provided with supporting leg（16）, and in two groups of supporting legs（16）Bottom end be both provided with universal wheel（17）.
3. as claimed in claim 2 a kind of convenient for upper perambulator downstairs, which is characterized in that further include two groups of outer tubes（18）With
Two groups of supporting rods（19）, two groups of outer tubes（18）It is separately mounted to car body（1）The right side and the right side at the top of rear end of front top
Side, two groups of supporting rods（19）Left end be inserted into two groups of outer tubes respectively（18）Right end inside, and in two groups of supporting rods
（19）Between right side be provided with push rod in the front-back direction（20）, outer tube（18）Inner roof wall on be provided with regulating tank（21）, and
In regulating tank（21）Inside it is provided with adjustable plate（22）, outer tube（18）Top be provided with and regulating tank（21）Pressing for communicating is logical
Hole, and press bar pressing to be provided in through-hole（23）, described to press bar（23）Bottom end stretch to regulating tank（21）It is interior and with
Adjustable plate（22）Top middle portion connection, the supporting rod（19）Top inside spaced set have several limit chambers, and
Second spring is provided in limit chamber（24）And baffle（25）, the second spring（24）Top and bottom end respectively with baffle
（25）Bottom end connected with the inner bottom wall of limit chamber, supporting rod（19）Top spaced set have several limiting slots, if described
Dry limiting slot is communicated with several limit chambers respectively, and tool is both provided with gag lever post in several limiting slots（26）, the gag lever post
（26）Bottom end stretch in limit chamber and and baffle（25）Top connection, one of which gag lever post（26）Top stretch to
Regulating tank（21）Interior and and adjustable plate（22）Bottom end contact.
4. as claimed in claim 3 a kind of convenient for upper perambulator downstairs, which is characterized in that the adjustable plate（22）Size
More than the size for pressing through-hole, the baffle（25）Size be more than limiting slot size, the gag lever post（26）Top be
Arc surface.
5. as claimed in claim 4 a kind of convenient for upper perambulator downstairs, which is characterized in that further include the first connect band（27）
With the second connect band（28）, first connect band（27）With the second connect band（28）One end and push rod（20）Slidably connect
It connects, the first connect band（27）The other end be provided with magic notice patch, the second connect band（28）The other end be provided with velcro
Female patch.
6. as claimed in claim 5 a kind of convenient for upper perambulator downstairs, which is characterized in that further include sky shade（29）, institute
State sky shade（29）Both ends respectively with car body（1）Front end on the left of and rear end on the left of flexible connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121785.6A CN108327768A (en) | 2018-02-07 | 2018-02-07 | It is a kind of to be convenient for upper perambulator downstairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121785.6A CN108327768A (en) | 2018-02-07 | 2018-02-07 | It is a kind of to be convenient for upper perambulator downstairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108327768A true CN108327768A (en) | 2018-07-27 |
Family
ID=62927296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810121785.6A Pending CN108327768A (en) | 2018-02-07 | 2018-02-07 | It is a kind of to be convenient for upper perambulator downstairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108327768A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112208611A (en) * | 2020-11-05 | 2021-01-12 | 夏江华 | Baby stroller |
| CN112623009A (en) * | 2021-01-04 | 2021-04-09 | 安徽小龙仔儿童用品有限公司 | Effectual perambulator of shock attenuation |
| EP3943365A3 (en) * | 2020-07-21 | 2022-04-20 | Veronika Keller | Running gear for a trolley and trolley |
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| CN200942812Y (en) * | 2006-08-07 | 2007-09-05 | 董祥 | Special-shaped wheel |
| CN201580424U (en) * | 2010-02-10 | 2010-09-15 | 中山乐美达日用制品有限公司 | Adjusting structure of telescopic handlebar of baby carriage |
| CN202156447U (en) * | 2011-06-30 | 2012-03-07 | 王灿章 | Dolly capable of automatically climbing up and down stairs |
| CN103661545A (en) * | 2012-09-19 | 2014-03-26 | 余鸿祥 | Baby carriage convenient for climbing stairs |
| CN106364543A (en) * | 2016-08-30 | 2017-02-01 | 苏州爱安奇婴儿用品有限公司 | Baby carriage capable of climbing stairs |
| CN107628091A (en) * | 2017-10-10 | 2018-01-26 | 温州翔宇教育科技有限公司 | A kind of electric car Stair climbing device |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505364Y (en) * | 2001-10-15 | 2002-08-14 | 王庆文 | Multi-purpose going upstairs baby carriage |
| CN200942812Y (en) * | 2006-08-07 | 2007-09-05 | 董祥 | Special-shaped wheel |
| CN201580424U (en) * | 2010-02-10 | 2010-09-15 | 中山乐美达日用制品有限公司 | Adjusting structure of telescopic handlebar of baby carriage |
| CN202156447U (en) * | 2011-06-30 | 2012-03-07 | 王灿章 | Dolly capable of automatically climbing up and down stairs |
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| CN107628091A (en) * | 2017-10-10 | 2018-01-26 | 温州翔宇教育科技有限公司 | A kind of electric car Stair climbing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3943365A3 (en) * | 2020-07-21 | 2022-04-20 | Veronika Keller | Running gear for a trolley and trolley |
| CN112208611A (en) * | 2020-11-05 | 2021-01-12 | 夏江华 | Baby stroller |
| CN112208611B (en) * | 2020-11-05 | 2022-04-05 | 青岛市妇女儿童医院 | Baby stroller |
| CN112623009A (en) * | 2021-01-04 | 2021-04-09 | 安徽小龙仔儿童用品有限公司 | Effectual perambulator of shock attenuation |
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Application publication date: 20180727 |
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| RJ01 | Rejection of invention patent application after publication |