CN109774772A - A kind of perambulator - Google Patents
A kind of perambulator Download PDFInfo
- Publication number
- CN109774772A CN109774772A CN201910098139.7A CN201910098139A CN109774772A CN 109774772 A CN109774772 A CN 109774772A CN 201910098139 A CN201910098139 A CN 201910098139A CN 109774772 A CN109774772 A CN 109774772A
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- CN
- China
- Prior art keywords
- seat
- handrail
- gear
- seat assembly
- joint
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a kind of perambulators, comprising: vehicle frame is provided with frame connecting seat on the vehicle frame；Seat assembly, connection structure is provided on the seat assembly or frame connecting seat, the seat assembly is installed in the frame connecting seat by the connection structure, the seat assembly has the first lock state and the first unlocked state, by controlling the movement of the connection structure so that the seat assembly can switch to the first unlocked state by the first lock state, when the seat assembly is in the first unlocked state, the seat assembly can be rotated relative to the frame connecting seat, its seat assembly is rotatable, can satisfy the use demand of different user.
Description
Technical field
The present invention relates to a kind of perambulators, belong to baby strollers technical field.
Background technique
In the related technology, perambulator has become indispensable product during infant growth.Existing perambulator generally has
Have vehicle frame and seat assembly, seat assembly is installed on vehicle frame, but due to seat assembly be it is fixed, cannot be by seat
Hyte part rotates so that baby towards user, is not able to satisfy the use needs of part user.
Therefore, the present invention is based on above deficiency and generates.
Summary of the invention
The present invention is directed to one of solve the problems, such as present in existing the relevant technologies at least to a certain extent, for this purpose, this hair
Bright to propose a kind of perambulator, seat assembly is rotatable, can satisfy the use demand of different user.
Above-mentioned purpose is achieved by the following technical solution:
A kind of perambulator, comprising:
Vehicle frame is provided with frame connecting seat on the vehicle frame；
Seat assembly, is provided with connection structure on the seat assembly or frame connecting seat, and the seat assembly is logical
It crosses the connection structure to be installed in the frame connecting seat, the seat assembly has the first lock state and the first unlock shape
State, by controlling the movement of the connection structure so that the seat assembly can be switched to the first unlock shape by the first lock state
State, when the seat assembly is in the first unlocked state, the seat assembly can be rotated relative to the frame connecting seat.
In some embodiments, the seat assembly includes seat plate, seat tubes and handrail, wherein in the seat plate
Two sides are respectively arranged with linkage mechanism, and the two sides rear end of the seat tubes is connect with the linkage mechanism respectively, the handrail
Two sides rear end is connect with the linkage mechanism respectively, and the handrail has the second lock state and the second unlocked state, when described
When the angle that seat tubes are rotated up is more than the first preset threshold, the handrail switches to the second unlock shape by the second lock state
State.
In some embodiments, the linkage mechanism includes that seat joint is female, seat joint is male, handrail connection sheet and tooth
Wheel, wherein the seat joint mother is set on the seat plate, the seat joint, which is postulated, to be placed on the seat joint mother
And it is connect with the seat tubes, the handrail connection sheet is set between the female and described seat joint Gongzhi in the seat joint simultaneously
And connect with the handrail, the gear is set between the female and described handrail connection sheet in the seat joint, the gear, institute
State handrail connection sheet and the seat joint public affairs interoperation.
In some embodiments, the linkage mechanism further includes spring, and the spring is against the gear and described
Between the mother of seat joint, it is provided with central axis on the seat joint mother, the gear has centre bore, and the central axis is worn
In the centre bore；
Opened up on the side wall of the centre bore fluted, the groove has groove inclined-plane, public in the seat joint
On be provided with convex block, the convex block extend into inside the groove and cooperates with the groove inclined-plane；
It is provided with link block on the gear, connecting hole is offered in the handrail connection sheet, the link block is stretched
Enter to the connecting hole the inside so that the gear and the handrail connection sheet to link together.
In some embodiments, the seat assembly further includes backing tube, the two sides lower end of the backing tube respectively with
The linkage mechanism connection, when the angle that the backing tube rotates forward is more than the second preset threshold, the handrail is by second
Lock state switches to the second unlocked state.
In some embodiments, backrest attachment base, the backrest are respectively arranged in the two sides lower end of the backing tube
Attachment base includes annulus and the linking arm that is set on the annulus, and the linking arm is connect with the lower end of the backing tube,
It is provided with annular convex platform on the seat joint mother, the annulus is sheathed on outside the annular convex platform, is connected in the backrest
It is provided with adjusting block on seat, spring is provided between the adjusting block and the backrest attachment base, on the annular convex platform
Multiple regulating tanks being spaced apart are provided with, backrest is provided on the backing tube and pulls button, the backrest pulls button and the tune
Locking nub connection pulls button by the backrest and controls the adjusting block movement so that the adjusting block is inserted into the different adjustings
Inside slot.
In some embodiments, the linkage mechanism further includes slider, and the slider is set to the handrail and connects
Between contact pin and the gear, the slider has arcuate projection, and sliding shoe, the sliding are provided on the annulus
Block and the arcuate projection interoperation；
Card slot is offered on the gear, the card slot has card slot inclined-plane, is provided with fixture block on the slider,
The fixture block has a fixture block inclined-plane, and the fixture block is extend into inside the card slot and the fixture block inclined-plane and the card slot inclined-plane
Cooperation.
In some embodiments, further include locking mechanism, the seat tubes two sides by the locking mechanism with it is described
Seat plate is detachably connected.
In some embodiments, the locking mechanism includes the fastener or bayonet being set in the seat tubes, and
The bayonet or fastener being set on the seat plate.
In some embodiments, the connection structure includes that the shaft for being set to the seat assembly bottom and activity are set
The connecting plate being placed in the frame connecting seat offers annular groove in the shaft, opens up in the frame connecting seat
There is through-hole, connector is offered on the connecting plate, the shaft lower end is inserted into the connector through the through-hole, institute
The inner sidewall and the annular groove for stating connector cooperate.
Compared with prior art, the present invention at least having the effect that
1, perambulator of the invention, when seat assembly is in the first unlocked state, seat assembly can be connected relative to vehicle frame
Seat rotation, to meet the use demand of different user.
Detailed description of the invention
Fig. 1 is a stereoscopic schematic diagram of perambulator provided in an embodiment of the present invention；
Fig. 2 is another stereoscopic schematic diagram of perambulator provided in an embodiment of the present invention；
Fig. 3 is first decomposition diagram of seat assembly provided in an embodiment of the present invention；
Fig. 4 is second decomposition diagram of seat assembly provided in an embodiment of the present invention；
Fig. 5 is the third decomposition diagram of seat assembly provided in an embodiment of the present invention；
Fig. 6 is the 4th decomposition diagram of seat assembly provided in an embodiment of the present invention；
Fig. 7 is the stereoscopic schematic diagram after perambulator overturning provided in an embodiment of the present invention；
Fig. 8 is the partial enlarged view of part A in Fig. 7；
Fig. 9 is the stereoscopic schematic diagram that perambulator provided in an embodiment of the present invention loads onto infanette；
Figure 10 is the folded state schematic diagram of perambulator provided in an embodiment of the present invention.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment one: as shown in Figures 1 to 8, the present embodiment provides a kind of perambulators, comprising:
Vehicle frame 1 is provided with frame connecting seat 2 on the vehicle frame 1, specifically, frame connecting seat 2 is set to the vehicle frame
1 middle position；
Seat assembly 3 is provided with connection structure, the seat assembly on the seat assembly 3 or frame connecting seat 2
3 are installed in the frame connecting seat 2 by the connection structure, and the seat assembly 3 has the first lock state and first
Unlocked state, by controlling the movement of the connection structure so that the seat assembly 3 can be switched to the by the first lock state
One unlocked state, when the seat assembly 3 is in the first unlocked state, the seat assembly 3 can connect relative to the vehicle frame
Joint chair 2 rotates, and when the seat assembly 3 is in the first lock state, the seat assembly 3 is fixed.
The perambulator of the present embodiment, when seat assembly 3 is in the first unlocked state, seat assembly 3 can connect relative to vehicle frame
Joint chair 2 rotates, and to meet the use demand of different user, can especially rotate seat assembly 3 so that baby is towards user,
So that baby is in always in the range of visibility of user, the safety used is thus improved.
Further, the seat assembly 3 includes seat plate 31, seat tubes 32 and handrail 33, wherein in the seat plate
31 two sides are respectively arranged with linkage mechanism 4, and the two sides rear end of the seat tubes 32 is connect with the linkage mechanism 4 respectively, described
The two sides rear end of handrail 33 is connect with the linkage mechanism 4 respectively, and the handrail 33 has the second lock state and the second unlock
State, when the angle that the seat tubes 32 are rotated up is more than the first preset threshold, the handrail 33 is by the second lock state
The second unlocked state is switched to, second lock state refers to that the handrail 3 turns forward and is arranged and is fixed, described second
Unlocked state refers to that the handrail 3 can forward or rotate backward to be folded, and thus flap(up) seat component 3 is the seat
The rotation of component 3 provides space.
Further, the linkage mechanism 4 includes seat joint mother 41, seat joint male 42, handrail connection sheet 43 and tooth
Wheel 44, wherein the seat joint mother 41 is set on the seat plate 31, seat joint public affairs 42 are set to the seat
It is connect on joint mother 41 and with the seat tubes 32, the handrail connection sheet 43 is set to seat joint mother 41 and described
It is connect between seat joint public affairs 42 and with the handrail 33, the gear 44 is set to seat joint mother 41 and described helps
Between hand connection sheet 43, public 42 interoperations in the gear 44, the handrail connection sheet 43 and the seat joint.By described
Public 42 interoperations in gear 44, the handrail connection sheet 43 and the seat joint make the handrail 33 have the second locking shape
State and the second unlocked state, simple in sturcture, ingenious in design, reasonable, use reliability is high.
Specifically, the linkage mechanism 4 further includes spring, the spring is against the gear 44 and the seat joint
Between mother 41, the reset by the spring of setting for gear 44 provides power, is provided with center on the seat joint mother 41
Axis 410, the gear 44 have centre bore 440, and the central axis 410 is arranged in the centre bore 440, and gear 44 can be in
Mandrel 410 rotates；
Fluted 441 are opened up on the side wall of the centre bore 440, the groove 441 has groove inclined-plane 442, in institute
State and be provided with convex block 421 in seat joint public affairs 42, the convex block 421 extend into 441 the inside of the groove and with the groove
Inclined-plane 442 cooperates, in the present embodiment, when 42 rotation of seat joint public affairs drives the convex block 421 rotation, the convex block
421 with 442 interoperation of groove inclined-plane gear 44 to be pushed toward female 41 directions in the seat joint；
It is provided with link block 443 on the gear 44, connecting hole 431, institute are offered in the handrail connection sheet 43
It states link block 443 and extend into 431 the inside of connecting hole so that the gear 44 and the handrail connection sheet 43 to link together.
In the present embodiment, the design of linkage mechanism 4 is reasonable, ingenious, using reliable.Specifically, under normal circumstances, due to
The cooperation of each part in the inside of linkage mechanism 4 is so that the handrail 33 turns forward is arranged and is fixed, i.e., in the second locking
State.And when being rotated up the seat tubes 32, the seat tubes 32 drive the seat joint public affairs 42 to rotate, while described
Public affairs 42 rotation in seat joint drives the convex block 421 to rotate, and the convex block 421 and 442 interoperation of groove inclined-plane will be with will
Gear 44 is pushed toward female 41 directions in the seat joint, on final link block 443 and handrail connection sheet 43 when on gear 44
When connecting hole 431 is detached from, handrail 33 switches to the second unlocked state by the second lock state.And when the seat that stops operating
When pipe 32, since the elastic force of spring keeps gear 44 mobile toward 43 direction of handrail connection sheet, the final link block 443 when on gear 44
When the connecting hole 431 being inserted into handrail connection sheet 43, handrail 33 switches to the second lock state by the second unlocked state.
Further, the seat assembly 3 further includes backing tube 34, the two sides lower end of the backing tube 34 respectively with it is described
Linkage mechanism 4 connects, and when the angle that the backing tube 34 rotates forward is more than the second preset threshold, the handrail 33 is by second
Lock state switches to the second unlocked state, and structure is simple, can be further reduced by turning folding forward for backing tube 34
The volume of seat assembly 3 provides space with the rotation for the seat assembly 3.
Further, backrest attachment base 35, the backrest connection are respectively arranged in the two sides lower end of the backing tube 34
Seat 35 includes annulus 351 and the linking arm 352 being set on the annulus 351, the linking arm 352 and the backing tube 34
Lower end connection, is provided with annular convex platform 411, the annulus 351 is sheathed on the annular convex platform on the seat joint mother 41
411 outsides, are provided with adjusting block 353 on the backrest attachment base 35, in the adjusting block 353 and the backrest attachment base 35
Between be provided with spring, multiple regulating tanks 4110 being spaced apart are provided on the annular convex platform 411, in the backing tube
It is provided with backrest on 34 and pulls button 354, the backrest is pulled button 354 and connect with the adjusting block 353, pulls button 354 by the backrest
The adjusting block 353 is controlled to act so that the adjusting block 353 is inserted into different 4110 the insides of the regulating tank, it is adjustable with this
Save the tilt angle of backing tube 34.In use, pressing backrest pulls button 354, backrest pulls button 354 and pulls adjusting block 353 so as to adjust
Block 353 is detached from current regulating tank 4110, the tilt angle of backing tube 34 is then adjusted, when the inclination of backing tube 34
Angular adjustment to it is suitable when, unclamp backrest pull button 354, due to spring elastic force act on, spring push adjusting block 353 be inserted into phase
The 4110 the inside the inside of regulating tank answered, thus fixes backing tube 34 and realizes the connection between backing tube 34 and linkage mechanism 4.
Further, the linkage mechanism 4 further includes slider 45, and the slider 45 is set to the handrail connection sheet
Between 43 and the gear 44, the slider 45 has arcuate projection 450, is provided with sliding shoe on the annulus 351
46, the sliding shoe 46 and 450 interoperation of arcuate projection；
Card slot 444 is offered on the gear 44, the card slot 444 has card slot inclined-plane 445, in the slider 45
On be provided with fixture block 451, the fixture block 451 has fixture block inclined-plane 452, and the fixture block 451 extend into 444 the inside of card slot simultaneously
And the fixture block inclined-plane 452 cooperates with the card slot inclined-plane 445.
In the present embodiment, the design of linkage mechanism 4 is reasonable, ingenious, using reliable.Specifically, under normal circumstances, due to
The cooperation of each part in the inside of linkage mechanism 4 is so that the handrail 33 turns forward is arranged and is fixed, i.e., in the second locking
State.And when rotating the backing tube 34 forward, the backing tube 34 drives the backrest attachment base 35 to rotate, while described
The rotation of backrest attachment base 35 drives the sliding shoe 46 to rotate, due to sliding shoe 46 and 450 interoperation of arcuate projection, sliding
Block 46 rotate when by push slider 45 move up, when slider 45 moves up, due to the fixture block inclined-plane 452 with it is described
The cooperation on card slot inclined-plane 445 can push gear 44 toward female 41 directions in the seat joint, the final link block when on gear 44
443 with the connecting hole 431 in handrail connection sheet 43 when being detached from, and handrail 33 by the second lock state switches to the second unlock shape
State.And when stop operating the backing tube 34 when, since the elastic force of the spring of linkage mechanism 4 makes gear 44 toward handrail connection sheet 43
Direction is mobile, and finally when the link block 443 on gear 44 is inserted into the connecting hole 431 in handrail connection sheet 43, handrail 33 is
Second lock state is switched to by the second unlocked state.
It preferably, further include locking mechanism 5,32 two sides of seat tubes pass through the locking mechanism 5 and the seat plate
31 are detachably connected.The safety that perambulator uses can be improved by the locking mechanism 5 of setting, specifically, when being not switched on
When locking mechanism 5, seat tubes 32 cannot be rotated up.
Further, the locking mechanism 5 includes the fastener 51 or bayonet being set in the seat tubes 32, and setting
In bayonet 52 or fastener on the seat plate 31, structure is simple, designs reasonable, ingenious, use reliability height.Ordinary circumstance
Under, the locking mechanism 5 is in the lock state, i.e., seat tubes 32 cannot be rotated up.In the present embodiment, when by the seat tubes
32 are pulled along, and the locking mechanism 5 is disengaged, on the fastener 51 or bayonet in the seat tubes 32 and the seat plate 31
Bayonet 52 or fastener be detached from, thus can be rotated up the seat tubes 32.Certainly, other tools can be used in the locking mechanism 5
The structure type of body, this is not restricted, as long as being detachably connected and improving use for seat tubes 32 and seat plate 31 can be realized
The purpose of safety.
Specifically, the connection structure includes being set to the shaft 61 of 3 bottom of seat assembly and being movably set in institute
The connecting plate 62 in frame connecting seat 2 is stated, offers annular groove 610 in the shaft 61, is opened in the frame connecting seat 2
Equipped with through-hole 200, connector 620 is offered on the connecting plate 62,61 lower end of shaft is inserted into through the through-hole 200
In the connector 620, the inner sidewall of the connector 620 and the annular groove 610 cooperate.In the present embodiment, connecting plate 62
Reset element is provided between frame connecting seat 2, under normal circumstances, since the effect of reset element is so that connector 620
Inner sidewall is clamped on 610 the inside of annular groove, so that the seat assembly 3 is in the first lock state, i.e., the described group of seats
Part 3 is fixed.When control connecting plate 62 overcomes the effect of reset element so that the inner sidewall of connector 620 is in annular groove 610
Emaciated face from so that the seat assembly 3 switches to the first unlocked state by the first lock state, i.e., the described seat assembly 3
It can be rotated relative to frame connecting seat 2.Certainly, other specific structures can be used in connection structure, and this is not restricted, as long as can
Realize the purpose of the connection and locking, unlock between seat assembly 3 and frame connecting seat 2.In addition, can by seat tubes 32 with
Connection structure linkage is got up, and the opening and closing of connection structure is driven by the rotation of seat tubes 32.
Referring specifically to shown in Fig. 9, seat assembly 3 can be disassembled from frame connecting seat 2, install infanette 7, by
This can meet the use demand of different user.Certainly, fixed structure can be designed for fixing infanette 7, when infanette 7 is installed on
When in frame connecting seat 2, fixed structure connects infanette 7 and frame connecting seat 2, for infanette 7 is fixed.
Referring specifically to shown in Figure 10, the perambulator of the present embodiment has unfolded state and folded state, when in folded state
When, can volume compact, occupy little space, be convenient for carrying.In the present embodiment, by the way that iron plate is arranged to drive entire child in vehicle frame 1
The folding of vehicle is shunk, and structure is simple, using reliable.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (10)
1. a kind of perambulator characterized by comprising
Vehicle frame is provided with frame connecting seat on the vehicle frame；
Seat assembly, is provided with connection structure on the seat assembly or frame connecting seat, and the seat assembly passes through institute
Connection structure to be stated to be installed in the frame connecting seat, the seat assembly has the first lock state and the first unlocked state,
By controlling the movement of the connection structure so that the seat assembly can switch to the first unlocked state by the first lock state,
When the seat assembly is in the first unlocked state, the seat assembly can be rotated relative to the frame connecting seat.
2. a kind of perambulator according to claim 1, which is characterized in that the seat assembly include seat plate, seat tubes and
Handrail, wherein be respectively arranged with linkage mechanism in the seat plate two sides, the two sides rear end of the seat tubes respectively with it is described
The connection of motivation structure, the two sides rear end of the handrail are connect with the linkage mechanism respectively, and the handrail has the second lock state
With the second unlocked state, when the angle that the seat tubes are rotated up is more than the first preset threshold, the handrail is by the second lock
Determine state and switches to the second unlocked state.
3. a kind of perambulator according to claim 2, which is characterized in that the linkage mechanism includes seat joint mother, seat
Joint public affairs, handrail connection sheet and gear, wherein the seat joint mother is set on the seat plate, the seat joint is postulated
It is upper and connect with the seat tubes to be placed in the seat joint mother, the handrail connection sheet be set to the seat joint mother with
It is connect between the seat joint Gongzhi and with the handrail, the gear is set to the seat joint mother and the handrail connects
Between contact pin, the gear, the handrail connection sheet and the seat joint public affairs interoperation.
4. a kind of perambulator according to claim 3, which is characterized in that the linkage mechanism further includes spring, the spring
It is against between the gear and seat joint mother, central axis, the gear tool is provided on the seat joint mother
There is centre bore, the central axis is arranged in the centre bore；
Opened up on the side wall of the centre bore it is fluted, the groove have groove inclined-plane, set in the seat joint Gongshang
It is equipped with convex block, the convex block extend into inside the groove and cooperates with the groove inclined-plane；
It is provided with link block on the gear, connecting hole is offered in the handrail connection sheet, the link block is extend into
The gear and the handrail connection sheet to link together inside the connecting hole.
5. a kind of perambulator according to claim 4, which is characterized in that the seat assembly further includes backing tube, described to lean on
The two sides lower end of penstock is connect with the linkage mechanism respectively, when the angle that the backing tube rotates forward is more than the second default threshold
When value, the handrail switches to the second unlocked state by the second lock state.
6. a kind of perambulator according to claim 5, which is characterized in that be respectively arranged in the two sides lower end of the backing tube
Backrest attachment base, the backrest attachment base include annulus and the linking arm that is set on the annulus, the linking arm with it is described
The lower end of backing tube connects, and is provided with annular convex platform on the seat joint mother, the annulus is sheathed on the annular convex platform
Outside is provided with adjusting block on the backrest attachment base, is provided with bullet between the adjusting block and the backrest attachment base
Spring is provided with multiple regulating tanks being spaced apart on the annular convex platform, and backrest is provided on the backing tube and pulls button, institute
It states backrest and pulls button and connect with the adjusting block, button is pulled by the backrest and controls adjusting block movement so that the adjusting block is slotting
Enter to inside the different regulating tanks.
7. a kind of perambulator according to claim 6, which is characterized in that the linkage mechanism further includes slider, the cunning
Movable plate is set between the handrail connection sheet and the gear, and the slider has arcuate projection, on the annulus
It is provided with sliding shoe, the sliding shoe and the arcuate projection interoperation；
Card slot is offered on the gear, the card slot has card slot inclined-plane, fixture block is provided on the slider, described
Fixture block has fixture block inclined-plane, and the fixture block is extend into inside the card slot and the fixture block inclined-plane is matched with the card slot inclined-plane
It closes.
8. according to a kind of any perambulator of claim 2 to 7, which is characterized in that it further include locking mechanism, the seat tubes
Two sides are detachably connected by the locking mechanism and the seat plate.
9. a kind of perambulator according to claim 8, which is characterized in that the locking mechanism includes being set to the seat tubes
On fastener or bayonet, and the bayonet or fastener that are set on the seat plate.
10. a kind of perambulator according to any one of claims 1 to 7, which is characterized in that the connection structure includes being set to institute
The shaft of seat assembly bottom and the connecting plate being movably set in the frame connecting seat are stated, offers ring in the shaft
Shape slot offers through-hole in the frame connecting seat, connector is offered on the connecting plate, the shaft lower end is through institute
It states through-hole to be inserted into the connector, the inner sidewall of the connector and the annular groove cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098139.7A CN109774772A (en) | 2019-01-31 | 2019-01-31 | A kind of perambulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098139.7A CN109774772A (en) | 2019-01-31 | 2019-01-31 | A kind of perambulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109774772A true CN109774772A (en) | 2019-05-21 |
Family
ID=66502980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910098139.7A Pending CN109774772A (en) | 2019-01-31 | 2019-01-31 | A kind of perambulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109774772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044096A (en) * | 2021-03-31 | 2021-06-29 | 广东乐美达集团有限公司 | Large seat changing structure and baby stroller |
-
2019
- 2019-01-31 CN CN201910098139.7A patent/CN109774772A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044096A (en) * | 2021-03-31 | 2021-06-29 | 广东乐美达集团有限公司 | Large seat changing structure and baby stroller |
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