CN212637616U - Children's barrow - Google Patents

Children's barrow Download PDF

Info

Publication number
CN212637616U
CN212637616U CN202021468487.3U CN202021468487U CN212637616U CN 212637616 U CN212637616 U CN 212637616U CN 202021468487 U CN202021468487 U CN 202021468487U CN 212637616 U CN212637616 U CN 212637616U
Authority
CN
China
Prior art keywords
rod
bracket
push rod
sliding
stroller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202021468487.3U
Other languages
Chinese (zh)
Inventor
李丰
吴传翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodbaby Child Products Co Ltd
Original Assignee
Goodbaby Child Products Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Goodbaby Child Products Co Ltd filed Critical Goodbaby Child Products Co Ltd
Priority to CN202021468487.3U priority Critical patent/CN212637616U/en
Application granted granted Critical
Publication of CN212637616U publication Critical patent/CN212637616U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a children's shallow, including the shallow frame, the shallow frame includes the bottom bracket subassembly, push rod assembly and the side connecting rod of being connected with push rod assembly rotation, the bottom bracket subassembly includes the fore-stock, the after-poppet, preceding connecting rod, seat pole and seat pole connecting rod, the fore-stock can rotate and slide with the after-poppet and be connected, push rod assembly and after-poppet rotate mutually and connect, preceding connecting rod rotates mutually with the after-poppet and connects, perhaps preceding connecting rod, push rod assembly and the three part looks coaxial rotation of after-poppet are connected, preceding connecting rod rotates with the fore-stock and is connected, the seat pole, two parts in side connecting rod and the three part of before-poppet rotate mutually and are connected, any part in third part and the aforesaid two parts rotates mutually and is connected, perhaps the three part looks coaxial rotation of above-mentioned three is connected, the seat pole connecting rod rotates with seat pole and preceding connecting rod respectively and is. The folding operation of this children's shallow is convenient, and folding back structure is small, portable and deposit.

Description

Children's barrow
Technical Field
The utility model relates to a children's articles for use technical field, concretely relates to children's shallow.
Background
The child stroller provides great convenience for adults to carry small children for outdoor activities, so that the child stroller gradually becomes a necessity for adults to carry children for outdoor activities. In order to facilitate the carrying and storage of the stroller, the stroller frame of the stroller can be folded. The existing children stroller has various types, different numbers of rod pieces of a stroller frame and different connecting positions among the rod pieces, so that the folding principle, the folding mode and the folding effect are different.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a modified children's shallow to not enough among the prior art.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a children's shallow, has expansion and fold condition, children's shallow includes the shallow frame, sets up the anterior front wheel subassembly in the end of shallow frame is in with the setting rear wheel subassembly at the end rear portion of shallow frame, the shallow frame includes the bottom bracket subassembly, can set up with rotating the push rod subassembly of bottom bracket top is in with connect the bottom bracket subassembly with side connecting rod between the push rod subassembly, the upper portion of side connecting rod with the push rod subassembly rotates mutually and connects, the bottom bracket subassembly includes:
the front bracket is arranged below the front bracket;
the rear wheel assembly is arranged below the rear bracket, the front bracket can rotate and is arranged on the rear bracket in a sliding manner along the length extension direction of the rear bracket, and the lower part of the push rod assembly is rotationally connected with the upper part of the rear bracket;
one end of the front connecting rod is rotatably connected with the upper part of the rear bracket, or one end of the front connecting rod, the lower part of the push rod assembly and the upper part of the rear bracket are rotatably connected in the same shaft, and the other end of the front connecting rod is rotatably connected with the front bracket;
a seat post, wherein two of the three parts of the rear end part of the seat post, the lower part of the side link and the upper part of the front bracket are rotationally connected, and the third part is rotationally connected with any one of the two parts, or the three parts are rotationally connected in the same shaft;
and two end parts of the seat rod connecting rod are respectively and rotatably connected with the front end part of the seat rod and the front connecting rod.
Preferably, the bottom bracket assembly further includes a first sliding member, the first sliding member is slidably disposed on the rear bracket along the length extending direction of the rear bracket, the front bracket is rotatably connected to the first sliding member, or the first sliding member is a rotating shaft rotatably connected to the front bracket and the rear bracket, the first sliding member is fixedly disposed on the upper portion of the front bracket, the first sliding member is rotatable relative to the rear bracket, and is slidably disposed on the rear bracket along the length extending direction of the rear bracket.
Preferably, the upper portion of the side link can also be arranged in a manner of sliding along the length extending direction of the push rod assembly relative to the push rod assembly, the push rod assembly has a forward using state extending obliquely upwards from the front to the back and a reverse using state extending obliquely upwards from the back to the front, and when the push rod assembly is switched between the forward using state and the reverse using state, the upper portion of the side link slides up and down along the length extending direction of the push rod assembly.
Furthermore, the cart frame further comprises a second sliding piece which can be arranged on the push rod assembly in a sliding mode along the length extending direction of the push rod assembly, and the upper portion of the side connecting rod is connected with the second sliding piece in a rotating mode.
Still further, the children's shallow still includes and is used for with bottom bracket component locks the first locking mechanism at the expansion state, works as the children's shallow is in the expansion state when push rod assembly switching-over, first locking mechanism is in the locking state, push rod assembly with the side connecting rod homoenergetic is relative bottom bracket component rotates, the second slider can be relative push rod assembly slides.
Furthermore, when the push rod assembly is in a forward use state, the stroller can be folded, and when the stroller is folded, the relative position between the second sliding piece and the push rod assembly is locked.
Preferably, the stroller further comprises a first locking mechanism for locking the bottom bracket assembly in the unfolded state, the push rod assembly comprises a lower push rod and an upper push rod, the lower portion of the upper push rod is rotatably connected with the upper portion of the lower push rod, the lower portion of the lower push rod is rotatably connected with the upper portion of the rear bracket, and when the stroller is folded, the upper push rod is overturned to be close to the lower push rod, the first locking mechanism is driven to unlock.
Preferably, one end of the front link, the lower part of the push rod assembly and the upper part of the rear bracket are connected in a same-axis rotating manner, and the rear end of the seat bar, the lower part of the side link and the upper part of the front bracket are connected in a same-axis rotating manner.
Preferably, the front bracket includes a front rod extending obliquely upward from front to back and an extension rod extending obliquely upward from an upper portion of the front rod, the upper portion of the front rod is rotatably and slidably disposed on the rear bracket along a length extending direction of the rear bracket, two of the three members of the rear end portion of the seat rod, the lower portion of the side link and the upper portion of the extension rod are rotatably connected, and the third member is rotatably connected to any one of the two members, or the three members are rotatably connected in the same axis.
Preferably, when the stroller is in the unfolded state, on the front connecting rod, the rotating connection position of the front connecting rod and the rear support, the rotating connection position of the front connecting rod and the seat rod connecting rod, and the rotating connection position of the front connecting rod and the front support are sequentially arranged from top to bottom, and the rotating connection position of the side connecting rod and the front support is located between the rotating connection position of the side connecting rod and the push rod assembly and the rotating connection position of the front support and the rear support.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a children's shallow simple structure, folding convenient operation, this children's shallow folding back structure is small moreover, portable and deposit.
Drawings
Fig. 1 is a perspective view of the stroller of the present invention in an unfolded state (the push rod assembly is in a forward use state);
fig. 2 is a side view of the stroller of the present invention in a deployed state (the push rod assembly is in a forward use state);
fig. 3 is a perspective view of the stroller of the present invention in a deployed state (the push rod assembly is in a reverse use state);
fig. 4 is a side view of the stroller of the present invention in a deployed state (the push rod assembly is in a reverse use state);
fig. 5 is a perspective view of the stroller of the present invention during folding (the upper push rod is turned forward and moved closer to the lower push rod to unlock the first locking mechanism);
fig. 6 is a side view of the stroller of the present invention during folding (the upper push rod is turned forward and moved closer to the lower push rod to unlock the first locking mechanism);
fig. 7 is a perspective view of the stroller of the present invention during the folding process;
fig. 8 is a side view of the stroller of the present invention during the folding process;
fig. 9 is a perspective view of the stroller of the present invention in a folded state;
fig. 10 is a side view of the stroller of the present invention in a folded position.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 10, the stroller of the present invention comprises a stroller frame, a front wheel assembly 50 disposed at the front portion of the bottom of the stroller frame, and a rear wheel assembly 60 disposed at the rear portion of the bottom of the stroller frame.
The cart frame comprises a bottom bracket component 1 positioned at the bottom, a push rod component 2 positioned above the bottom bracket component 1 and a side connecting rod 3 connected between the bottom bracket component 1 and the push rod component 2.
The bottom bracket assembly 1 includes a front bracket 11, a rear bracket 12, a first slider 13, a front link 14, a seat bar 15, and a seat bar link 16. The front wheel assembly 50 is disposed at a lower portion of the front bracket 11. The rear wheel assembly 60 is disposed at a lower portion of the rear bracket 12. The front bracket 11 is rotatably and slidably provided on the rear bracket 12 in the longitudinal extension direction of the rear bracket 12. The first sliding piece 13 is arranged on the rear bracket 12 in a manner of sliding along the length extension direction of the rear bracket 12, and the front bracket 11 is rotatably connected with the first sliding piece 13; or the first sliding part is a rotating shaft which is rotatably connected with the front bracket 11 and the rear bracket 12, the first sliding part is fixedly arranged at the upper part of the front bracket 11, and the first sliding part can rotate relative to the rear bracket 12 and is arranged on the rear bracket 12 in a manner of sliding along the length extending direction of the rear bracket 12. One end of the front link 14 is rotatably connected to the upper portion of the rear bracket 12, or one end of the front link 14, the upper portion of the rear bracket 12 and the lower portion of the push rod assembly 2 are rotatably connected to the same shaft, and the other end of the front link 14 is rotatably connected to the front bracket 11. Two of the three members of the rear end portion of the seatpost 15, the lower portion of the side link 3, and the upper portion of the front bracket 11 are rotatably connected, and the third member is rotatably connected to either one of the two members, or the three members are rotatably connected in the same axis.
The push rod assembly 2 comprises a lower push rod 21 and an upper push rod 22, wherein the lower part of the upper push rod 22 is rotatably connected with the upper part of the lower push rod 21, the upper part of the side connecting rod 3 is rotatably connected with the lower push rod 21, the lower part of the lower push rod 21 is rotatably connected with the upper part of the rear bracket 12, or one end part of the front connecting rod 14, the lower part of the lower push rod 21 and the upper part of the rear bracket 12 are rotatably connected in the same shaft.
In this embodiment, the end portion of the front link 14, the lower portion of the lower push rod 21, and the upper portion of the rear bracket 12 are coaxially and rotatably connected, and the rear end portion of the seat bar 15, the lower portion of the side link 3, and the upper portion of the front bracket 11 are coaxially and rotatably connected. Thus, a crank-slider mechanism is formed between the front bracket 11, the rear bracket 12, the first slider 13, and the front link 14, and a four-link mechanism is formed between the front bracket 11, the seatpost 15, the seatpost link 16, and the front link 14.
In the present embodiment, the front bracket 11 includes a front rod 111 extending obliquely upward from the front to the rear and an extension rod 112 extending obliquely upward from an upper portion of the front rod 111, an upper portion of the front rod 111 is rotatably connected to the first slider 13, and a rear end portion of the seat rod 15, a lower portion of the side link 3, and an upper portion of the extension rod 112 are rotatably connected in the same axis.
The upper portion of the side link 3 can also be slidably disposed with respect to the lower push rod 21. Specifically, the stroller frame further comprises a second sliding member 4 slidably disposed on the lower push rod 21 along the longitudinal extension direction of the lower push rod 21, and the upper portion of the side link 3 is rotatably connected to the second sliding member 4. Thus, the push rod assembly 2 can be rotated forward or backward relative to the bottom bracket assembly 1 while the bottom bracket assembly 1 remains stationary.
The child stroller further comprises a locking mechanism for locking the stroller frame in the unfolded state, the locking mechanism comprising a first locking mechanism for locking the bottom bracket assembly 1 in the unfolded state, a second locking mechanism for locking the push-up rod 22 and the push-down rod 21 in the unfolded state, and a third locking mechanism for locking the relative positions of the second slider 4 and the side link 3. In the present embodiment, the first locking mechanism is provided between the rear bracket 12 and the first slider 13. When the second locking mechanism is unlocked, the upper push rod 22 is forwards turned and is close to the lower push rod 21, the first locking mechanism can be driven to unlock, and therefore the first locking mechanism is unlocked without independent operation, and the folding operation of the stroller is convenient. The first locking mechanism, the second locking mechanism and the third locking mechanism can adopt the structure in the prior art.
When the stroller is in the deployed state, the first, second, and third locking mechanisms are in the locked state. The lower push rod 21 and the upper push rod 22 extend in the same linear direction. The first slider 13 is positioned on the rear bracket 12 at an upper portion of the rear bracket 12. On the front bracket 11, a rotational joint of the front bracket 11 and the side link 3, a rotational joint of the front bracket 11 and the first slider 13, and a rotational joint of the front bracket 11 and the front link 14 are arranged in this order from top to bottom. On the front link 14, the rotary joints of the front link 14 with the lower push rod 21 and the rear bracket 12, the rotary joints of the front link 14 with the seat bar link 16, and the rotary joints of the front link 14 with the front bracket 11 are arranged in this order from top to bottom. The rotary joint of the side link 3 and the front bracket 11 is located between the rotary joint of the side link 3 and the push rod assembly 2 and the rotary joint of the front bracket 11 and the rear bracket 12. The push rod assembly 2 has a forward use state and a reverse use state. When the push rod assembly 2 is in the forward use state, the push rod assembly 2, i.e., the lower push rod 21 and the upper push rod 22, each extend obliquely upward from front to back, as shown in fig. 1 and 2. When the push rod assembly 2 is in the reverse use state, the push rod assembly 2, i.e., the lower push rod 21 and the upper push rod 22, each extend obliquely upward from the rear to the front, as shown in fig. 3 and 4.
When the push rod assembly 2 is switched between the forward use state and the reverse use state, the first locking mechanism is in the locking state, that is, the positions of the components forming the bottom bracket assembly 1 are all in a relatively fixed state, the components cannot move relatively, and the whole bottom bracket assembly 1 is equivalent to a rigid integral structure. The second locking mechanism is also in a locked state, i.e. the position between the lower push rod 21 and the upper push rod 22 is relatively fixed, and no relative movement occurs between the two. The third locking mechanism is in an unlocked state such that a crank-slider mechanism is formed between the bottom bracket assembly 1, the push rod assembly 2, the second slide 4 and the side link 3. When the push rod assembly 2 is switched from a forward use state to a reverse use state, the push rod assembly 2 integrally rotates forwards around a rotary connection part with the rear support 12 and the front connecting rod 14, the side connecting rod 3 is driven to synchronously rotate forwards around the rotary connection part with the front support 11 and the seat rod 15 through a crank-slider mechanism formed among the bottom support assembly 1, the push rod assembly 2, the second sliding piece 4 and the side connecting rod 3, and the second sliding piece 4 slides downwards along the length extension direction of the lower push rod 21 until the push rod assembly 2 is in the reverse use state; when the push rod assembly 2 is switched from the reverse use state to the forward use state, the push rod assembly 2 integrally rotates backwards around the rotating connection part with the rear support 12 and the front connecting rod 14, the crank slider mechanism formed among the bottom support assembly 1, the push rod assembly 2, the second sliding piece 4 and the side connecting rod 3 drives the side connecting rod 3 to synchronously rotate backwards around the rotating connection part with the front support 11 and the seat rod 15, and the second sliding piece 4 slides upwards along the length extension direction of the lower push rod 21 until the push rod assembly 2 is in the forward use state.
When the push rod assembly 2 is in the forward use state, the stroller can be folded, and when the stroller is folded, the third locking mechanism is in the locking state, that is, the relative positions of the second slider 4 and the side link 3 are locked, and the two are equivalent to a whole body and do not move relatively. The second locking mechanism is unlocked, the upper push rod 22 is turned forward and downward to be close to the lower push rod 21, and the first locking mechanism is unlocked simultaneously in the process that the upper push rod 22 rotates relative to the lower push rod 21, as shown in fig. 5 and 6. The push rod assembly 2 is pressed downwards to be close to the rear support 12, the seat rod 15 is driven to turn backwards through the side connecting rod 3, the second sliding piece 13 slides downwards along the length extending direction of the rear support 12, the front support 11 and the rear support 12 rotate relatively to be close to each other, the folding process is as shown in fig. 7 and 8, until all the components forming the stroller frame are close to each other, and finally the stroller frame is folded as shown in fig. 9 and 10. Under final folding state, front wheel subassembly 50 and rear wheel subassembly 60 prop jointly and stand on ground, and whole children's shallow is the platykurtic, compact structure, and the volume is less, makes things convenient for children's shallow daily accomodating and carrying the use.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides a children's shallow, has expansion and fold condition, children's shallow includes the shallow frame, sets up the anterior front wheel subassembly in the end of shallow frame is in with the setting the rear wheel subassembly at the end rear portion of shallow frame, its characterized in that: shallow frame includes the end bracket subassembly, can set up with rotating the push rod subassembly of end bracket top is in with connecting the end bracket subassembly with side connecting rod between the push rod subassembly, the upper portion of side connecting rod with the push rod subassembly rotates mutually to be connected, the end bracket subassembly includes:
the front bracket is arranged below the front bracket;
the rear wheel assembly is arranged below the rear bracket, the front bracket can rotate and is arranged on the rear bracket in a sliding manner along the length extension direction of the rear bracket, and the lower part of the push rod assembly is rotationally connected with the upper part of the rear bracket;
one end of the front connecting rod is rotatably connected with the upper part of the rear bracket, or one end of the front connecting rod, the lower part of the push rod assembly and the upper part of the rear bracket are rotatably connected in the same shaft, and the other end of the front connecting rod is rotatably connected with the front bracket;
a seat post, wherein two of the three parts of the rear end part of the seat post, the lower part of the side link and the upper part of the front bracket are rotationally connected, and the third part is rotationally connected with any one of the two parts, or the three parts are rotationally connected in the same shaft;
and two end parts of the seat rod connecting rod are respectively and rotatably connected with the front end part of the seat rod and the front connecting rod.
2. The stroller of claim 1, wherein: the bottom bracket component further comprises a first sliding part, the first sliding part can be arranged on the rear bracket in a sliding mode in the length extending direction of the rear bracket, the front bracket is connected with the first sliding part in a rotating mode, or the first sliding part is a rotating shaft connected with the front bracket and the rear bracket in a rotating mode, the first sliding part is fixedly arranged on the upper portion of the front bracket, the first sliding part can rotate relative to the rear bracket, and the first sliding part can be arranged on the rear bracket in a sliding mode in the length extending direction of the rear bracket.
3. The stroller of claim 1, wherein: the upper portion of side connecting rod can also be relative push rod assembly follows push rod assembly's length extending direction sets up with sliding, push rod assembly has the forward user state that extends from the forward backward tilt up and the backward user state that extends from the backward forward tilt up, works as when push rod assembly interconverts between forward user state and the backward user state, the upper portion of side connecting rod is followed push rod assembly's length extending direction slides from top to bottom.
4. The stroller of claim 3, wherein: the cart frame further comprises a second sliding piece which can be arranged on the push rod assembly in a sliding mode along the length extending direction of the push rod assembly, and the upper portion of the side connecting rod is connected with the second sliding piece in a rotating mode.
5. The stroller of claim 4, wherein: the child cart further comprises a first locking mechanism used for locking the bottom bracket component in the unfolding state, the child cart is in the unfolding state, when the push rod component is reversed, the first locking mechanism is in the locking state, the push rod component and the side connecting rods can be opposite to the bottom bracket component, and the second sliding component can be opposite to the push rod component in a sliding mode.
6. The stroller of claim 4, wherein: when the push rod assembly is in a forward using state, the stroller can be folded, and when the stroller is folded, the relative position between the second sliding piece and the push rod assembly is locked.
7. The stroller of claim 1, wherein: the child stroller further comprises a first locking mechanism used for locking the bottom bracket component in an unfolded state, the push rod component comprises a lower push rod and an upper push rod, the lower portion of the upper push rod is rotatably connected with the upper portion of the lower push rod, the lower portion of the lower push rod is rotatably connected with the upper portion of the rear bracket, and when the child stroller is folded, the upper push rod overturns to be close to the lower push rod, the first locking mechanism is driven to unlock.
8. The stroller of claim 1, wherein: the seat rod is characterized in that one end part of the front connecting rod, the lower part of the push rod assembly and the upper part of the rear support are in the same shaft rotating connection, and the rear end part of the seat rod, the lower part of the side connecting rod and the upper part of the front support are in the same shaft rotating connection.
9. The stroller of claim 1, wherein: the front support comprises a front support rod extending upwards in an inclined mode from front to back and an extension rod extending upwards in an inclined mode from the upper portion of the front support rod, the upper portion of the front support rod can rotate and is arranged on the rear support rod in a sliding mode along the length extending direction of the rear support rod, two of the three components of the rear end portion of the seat rod, the lower portion of the side connecting rod and the upper portion of the extension rod are connected in a rotating mode, the third component is connected with any one of the two components in a rotating mode, or the three components are connected in a rotating mode through the same shaft.
10. The stroller of claim 1, wherein: when the children's shallow is in the expansion state on the preceding connecting rod, preceding connecting rod with the rotation junction of after-poppet preceding connecting rod with the rotation junction of seat pole connecting rod preceding connecting rod with the rotation junction of before-poppet sets up from the top down in proper order, the side connecting rod with the rotation junction of before-poppet is located the side connecting rod with the rotation junction of push rod subassembly with the before-poppet with between the rotation junction of after-poppet.
CN202021468487.3U 2020-07-23 2020-07-23 Children's barrow Active CN212637616U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021468487.3U CN212637616U (en) 2020-07-23 2020-07-23 Children's barrow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021468487.3U CN212637616U (en) 2020-07-23 2020-07-23 Children's barrow

Publications (1)

Publication Number Publication Date
CN212637616U true CN212637616U (en) 2021-03-02

Family

ID=74763556

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021468487.3U Active CN212637616U (en) 2020-07-23 2020-07-23 Children's barrow

Country Status (1)

Country Link
CN (1) CN212637616U (en)

Similar Documents

Publication Publication Date Title
CN212637616U (en) Children's barrow
CN111874077A (en) Children's barrow
CN212637615U (en) Children's barrow
CN213534820U (en) Children's barrow
CN213292401U (en) Children's barrow
CN213799848U (en) Novel baby carriage
CN213948548U (en) Novel baby carriage
CN212637604U (en) Double children's barrow
CN212828626U (en) Children's barrow
CN212828625U (en) Children's barrow
CN213168252U (en) Foldable baby carriage
CN213948549U (en) Novel infant's shallow
CN213292408U (en) Children's barrow
CN213292405U (en) Children's barrow
CN212637619U (en) Children's barrow
CN213831843U (en) Children's barrow
CN211001523U (en) Foldable baby carriage frame
CN112009547A (en) Double children's barrow
CN214524006U (en) Children's barrow
CN214396912U (en) Baby carriage frame
CN212556453U (en) Foldable infant stroller
CN211442450U (en) Foldable support and baby carriage frame with same
CN209904853U (en) Children's barrow
CN211391422U (en) Children's barrow
CN213534815U (en) Children's barrow

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant