CN112664794A - Supporting leg and supporting component - Google Patents

Supporting leg and supporting component Download PDF

Info

Publication number
CN112664794A
CN112664794A CN201910983697.1A CN201910983697A CN112664794A CN 112664794 A CN112664794 A CN 112664794A CN 201910983697 A CN201910983697 A CN 201910983697A CN 112664794 A CN112664794 A CN 112664794A
Authority
CN
China
Prior art keywords
lower joint
joint
support
locking portion
upper joint
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.)
Granted
Application number
CN201910983697.1A
Other languages
Chinese (zh)
Other versions
CN112664794B (en
Inventor
宁欢
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.)
Wonderland Switzerland AG
Original Assignee
Wonderland Switzerland AG
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 Wonderland Switzerland AG filed Critical Wonderland Switzerland AG
Priority to CN201910983697.1A priority Critical patent/CN112664794B/en
Priority to CN202311378017.6A priority patent/CN117432909A/en
Publication of CN112664794A publication Critical patent/CN112664794A/en
Application granted granted Critical
Publication of CN112664794B publication Critical patent/CN112664794B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention provides a supporting leg which comprises an upper joint, a lower joint and an elastic piece, wherein the lower joint is provided with a locking part, the upper joint is provided with a fixing shaft and a limiting groove for the locking part to extend into, the locking part is provided with a long groove for the fixing shaft to slide, the fixing shaft penetrates through the long groove and is in rotating connection with the long groove, the limiting groove is used for limiting the pivoting angle of the lower joint around the upper joint, one end of the elastic piece is installed on the upper joint, the other end of the elastic piece is installed on the lower joint, the elastic piece enables the locking part to be clamped in the limiting groove constantly, the lower joint is operated to overcome the elasticity of the elastic piece so that the locking part is separated from the limiting groove to reach a certain position, and the lower joint. The supporting legs can be folded, the occupied space is reduced, the transportation and the carrying are convenient, and the folding operation is very convenient. The application also provides a supporting component containing the supporting leg.

Description

Supporting leg and supporting component
Technical Field
The invention relates to the technical field of supporting legs, in particular to a supporting leg and a supporting assembly.
Background
In daily use, supporting legs need to be used for a lot of articles, however, the whole occupied space is large after the supporting legs are used, the transportation and the carrying are inconvenient, even if the foldable supporting legs are appeared, a screwdriver is needed to be adopted to fold up the supporting legs after the fixing screws in the supporting legs are unscrewed, and the supporting legs can not be folded up without the screwdriver, so that the user experience is poor, and the operation is complex.
Therefore, there is a need to provide a foldable and easy-to-operate support foot to solve the above problems.
Disclosure of Invention
One object of the present invention is to provide a foldable and easy-to-operate support foot.
Another object of the present invention is to provide a support assembly comprising the above-described support leg.
In order to achieve the above object, the present invention provides a supporting foot, which comprises an upper joint, a lower joint and an elastic member, wherein one of the lower joint and the upper joint is provided with a locking portion, the other of the lower joint and the upper joint is provided with a limiting groove for the locking portion to extend into, one end of the elastic member is installed on the upper joint, the other end of the elastic member is installed on the lower joint, the elastic member constantly enables the locking portion to be clamped in the limiting groove, the lower joint is operated to overcome the elastic force of the elastic member so as to enable the locking portion to be separated from the limiting groove to reach a certain position, the lower joint can rotate relative to the upper joint, and the lower joint can be folded relative to the upper.
Compared with the prior art, the locking part is extended into the limiting groove, the fixing shaft is connected with the long groove in a rotating mode, meanwhile, the elastic piece enables the locking part to be clamped in the limiting groove constantly, and the limiting groove is used for limiting the pivoting angle of the lower joint around the upper joint, so that the upper joint and the lower joint are mutually supported. And the fixing shaft can relatively slide in the long groove, the lower joint is operated to overcome the elasticity of the elastic piece and drive the long groove to move downwards, so that the locking part is separated from the limiting groove to reach a certain position, and at the position, the lower joint can be operated to pivot around the fixing shaft to rotate relative to the upper joint, so that the lower joint can be folded relative to the upper joint. Because the supporting legs can be folded, the occupied space is reduced, the transportation and the carrying are convenient, and the folding operation is very convenient.
Preferably, the locking part is provided with a long groove for a fixed shaft to slide, the fixed shaft passes through the long groove and is rotatably connected with the long groove, the limiting groove is used for limiting the pivoting angle of the lower joint around the upper joint, and the lower joint is operated to rotate around the fixed shaft.
Preferably, the locking part includes a first locking part and a second locking part, the long groove includes a first long groove provided in the first locking part and a second long groove provided in the second locking part, and the fixing shaft penetrates through the first long groove and the second long groove.
Preferably, a movable space of the elastic member is provided between the first locking part and the second locking part, one end of the elastic member is connected to the fixed shaft, and the other end of the elastic member is connected to the lower joint.
Preferably, the lower joint is provided with a fixing column, one end of the elastic piece is connected to the fixing shaft, and the other end of the elastic piece is connected to the fixing column.
Preferably, the lower joint is provided with a first limiting plate and a second limiting plate, and the first limiting plate, the second limiting plate and the fixed column enclose a moving space for the elastic part.
Preferably, the limiting groove is provided with an opening, the fixing shaft passes through the limiting groove, the locking part is separated from the limiting groove to reach a certain position, and the lower joint can be operated to be folded on the upper joint along the opening direction.
Correspondingly, this application still provides a supporting component, includes the above-mentioned supporting legs of at least 2 and connects the connecting portion between two supporting legs.
Preferably, the connecting portion is detachably connected to each of the supporting legs.
Preferably, the supporting legs are provided with first mounting holes, the connecting portions are provided with second mounting holes, spring pieces are arranged in the second mounting holes, and the connecting portions extend into the first mounting holes and are detachably connected with the first mounting holes through the spring pieces.
Preferably, the connecting portion has an arc-shaped structure.
Preferably, the support assembly includes four support legs and four connecting portions, each two support legs are connected to each other through the connecting portion, and the four connecting portions are connected to the four support legs to form a circular shape.
The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the invention.
Drawings
FIG. 1 is a schematic structural view of the support assembly of the present invention showing the support foot in use.
Fig. 2 is another structural schematic view of the support assembly of the present invention showing the support legs in a folded state.
FIG. 3 is a partially exploded view of the support assembly of the present invention.
FIG. 4 is a schematic structural view of a support foot of the support assembly of the present invention.
Fig. 5 is a schematic structural view of another state of the support leg of the support assembly of the present invention, showing a state where the locking portion is disengaged from the limiting groove.
Fig. 6 is a schematic structural view of a support leg of the support assembly of the present invention in another state, showing a state in which the locking portion is located in the limiting groove.
Fig. 7 is a cross-sectional view at BB of fig. 6.
Fig. 8 is a cross-sectional view at AA of fig. 5.
Fig. 9 is a cross-sectional view at CC of fig. 2.
Description of the element reference numerals
200 supporting components, 100 supporting feet, 101 a first mounting hole, 10 an upper joint, 11 a fixed shaft, 13 a limiting groove, 14 an opening, 30 a lower joint, 31 a locking part, 311 a first locking part, 313 a second locking part, 32 a fixed column, 33 a first limiting plate, 34 a second limiting plate, 35 a moving space, 36 a long groove, 361 a first long groove, 363 a second long groove, 50 an elastic part, 130 a connecting part and 131 a second mounting hole.
Detailed Description
Embodiments of the present invention will now be described with reference to the drawings, wherein like reference numerals represent like elements throughout.
Referring to fig. 1-3, the supporting assembly 200 of the present invention includes at least 2 supporting legs 100 and a connecting portion 130 connecting the two supporting legs 100. The supporting leg 100 can be folded to reduce the occupied volume of the supporting component 200, and the folding of the supporting leg 100 is very convenient and simple to operate. For ease of assembly, connecting portion 130 is removably connected to each support foot 100. Specifically, supporting legs 100 is equipped with first mounting hole 101, and connecting portion 130 is equipped with second mounting hole 131, is equipped with the spring leaf in the second mounting hole 131, and connecting portion 130 stretches into and can dismantle rather than realizing through the effect of spring leaf in first mounting hole 101 and be connected to convenient and fast assembles into supporting component 200 with connecting portion 130 and supporting legs 100. In this embodiment, the supporting assembly 200 is formed by four supporting legs 100 and four connecting portions 130, each two supporting legs 100 are connected by one connecting portion 130, the connecting portion 130 is an arc-shaped structure to increase the stress of the supporting assembly 200, and the four connecting portions 130 are circular after being connected with the four supporting legs 100.
Referring to fig. 4-9, the foot 100 includes an upper joint 10, a lower joint 30, and an elastic member 50. The first mounting hole 101 is provided in the upper joint 10. One of the lower joint 30 and the upper joint 10 has a locking portion 31, and the other of the lower joint 30 and the upper joint 10 has a stopper groove 13 into which the locking portion 31 extends. In the present embodiment, the locking portion 31 is provided in the lower joint 30, and the limit groove 13 is provided in the upper joint 10, but not limited thereto, and the limit groove 13 may be provided in the lower joint 30, and the locking portion 31 may be provided in the upper joint 10, and the effects of the present invention can be similarly achieved. The locking part 31 is provided with a long groove 36 for sliding the fixed shaft 11, the fixed shaft 11 passes through the long groove 36 and is connected with the long groove 36 in a rotating mode, the limiting groove 13 is used for limiting the pivoting angle of the lower joint 30 around the upper joint 10, and the lower joint 30 is operated to rotate around the fixed shaft 11. The fixing shaft 11 and the limiting groove 13 are disposed on the same side, and in this embodiment, the upper joint 10 is provided with the fixing shaft 11. One end of the elastic element 50 is mounted on the upper joint 10, the other end of the elastic element 50 is mounted on the lower joint 30, the elastic element 50 constantly enables the locking portion 31 to be clamped in the limiting groove 13, that is, the elastic element 50 provides elastic force to constantly move the locking portion 31 along the limiting groove 13, the lower joint 30 is operated to overcome the elastic force of the elastic element 50 to enable the locking portion 31 to be separated from the limiting groove 13 to reach a certain position, and the lower joint 30 can be operated to rotate around the fixed shaft 11 to enable the lower joint 30 to be folded relative to the upper joint 10. Therefore, when the supporting foot 100 is not needed, the lower joint 30 may be pulled to move in the arrow direction K (as shown in fig. 5), so that the lower joint 30 moves to a position, which may be designed according to actual conditions, and may reach a rotatable position, which is not limited herein. When the lower joint 30 moves to a position where the lower joint can rotate around the fixed shaft 11, the lower joint 30 is operated to fold inwards, so that the lower joint 30 is folded relative to the upper joint 10, and the folding process is convenient. And the folding of the supporting legs 100 reduces the occupied volume and facilitates transportation and carrying. In this embodiment, the elastic element 50 is a tension spring, and the elongated slot 36 is an oval structure, but not limited thereto.
Referring to fig. 5-6, locking portion 31 includes first locking portion 311 and second locking portion 313, elongated slot 36 includes first elongated slot 361 provided in first locking portion 311 and second elongated slot 363 provided in second locking portion 313, and fixed shaft 11 penetrates first elongated slot 361 and second elongated slot 363. By providing two locking portions 31, the stability of the pivoting and support of the lower joint 30 is improved. Further, a movable space 35 of the elastic member 50 is provided between the first locking part 311 and the second locking part 313, one end of the elastic member 50 is connected to the fixed shaft 11, the other end of the elastic member 50 is connected to the lower joint 30, and the elastic member 50 is provided between the first locking part 311 and the second locking part 313, thereby improving the stability of the support. In order to ensure the stability of the installation of the elastic member 50, the lower joint 30 has a fixing post 32, one end of the elastic member 50 is connected to the fixing shaft 11, and the other end of the elastic member 50 is connected to the fixing post 32. In particular, the lower joint 30 has a first limit plate 33 and a second limit plate 34, and the first limit plate 33, the second limit plate 34 and the fixed column 32 enclose a moving space 35 for the elastic member 50, so as to prevent the elastic member 50 from being separated.
Referring to fig. 5, the limiting groove 13 is provided with an opening 14, the fixing shaft 11 passes through the limiting groove 13, the locking portion 31 is separated from the limiting groove 13 to a certain position, and the lower joint 30 can be folded on the upper joint 10 along the direction of the opening 14. The opening 14 not only allows the leg 100 to be compact, but also allows the lower joint 30 to pivot about the fixed shaft 11 smoothly.
The working principle of the supporting foot 100 of the present application will be described in detail with reference to fig. 1 to 9.
When the supporting foot 100 is in a use state (as shown in fig. 1 or fig. 7), the top ends of the first locking portion 311 and the second locking portion 313 abut against the limiting groove 13, and the elastic member 50 constantly enables the first locking portion 311 and the second locking portion 313 to be clamped in the limiting groove 13, so that the upper joint 10 and the lower joint 30 are located on the same straight line in the vertical direction, and a supporting effect can be provided. When the supporting foot 100 is not needed to be used, the lower joint 30 is pulled downwards along the arrow direction K (as shown in fig. 5), the locking portion 31 is separated from the limiting groove 13 to a certain position, namely, a position (as shown in fig. 5 or fig. 8) capable of being folded along the direction of the opening 14, and then the lower joint 30 is operated to be folded on the upper joint 10 along the direction of the opening 14, so that the lower joint 30 is folded relative to the upper joint 10 (as shown in fig. 2 or fig. 9), and the folding is convenient.
Compared with the prior art, the locking portion 31 extends into the limiting groove 13, the fixing shaft 11 and the long groove 36 are in relative sliding and rotating connection, meanwhile, the elastic piece 50 enables the locking portion 31 to be clamped in the limiting groove 13 constantly, the limiting groove 13 is used for limiting the pivoting angle of the lower joint 30 around the upper joint 10, and the upper joint 10 and the lower joint 30 are enabled to support each other. And because the fixed shaft 11 can relatively slide in the long groove 36, the lower joint 30 is operated to overcome the elastic force of the elastic element 50, and the long groove 36 is driven to move downwards, so that the locking part 31 is separated from the limiting groove 13 to reach a certain position, and at the position, the lower joint 30 can be operated to pivot around the fixed shaft 11 so as to rotate relative to the upper joint 10, so that the lower joint 30 can be folded relative to the upper joint 10, and the folding is convenient.
The present invention has been described in connection with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, and is intended to cover various modifications, equivalent combinations, which are made in accordance with the spirit of the present invention.

Claims (12)

1. A supporting leg is characterized by comprising an upper joint, a lower joint and an elastic piece, wherein one of the lower joint and the upper joint is provided with a locking part, the other of the lower joint and the upper joint is provided with a limiting groove for the locking part to extend into, one end of the elastic piece is installed on the upper joint, the other end of the elastic piece is installed on the lower joint, the elastic piece enables the locking part to be clamped in the limiting groove, the lower joint is operated to overcome the elasticity of the elastic piece so that the locking part is separated from the limiting groove to reach a certain position, the lower joint can rotate relative to the upper joint, and the lower joint can be folded relative to the upper joint.
2. The support foot of claim 1, wherein the locking portion has an elongated slot for slidably moving a fixed shaft, the fixed shaft passing through the elongated slot and being rotatably coupled thereto, the limiting slot being configured to limit a pivoting angle of the lower joint about the upper joint, the lower joint being operable to rotate about the fixed shaft.
3. A support foot according to claim 2, wherein the locking portion comprises a first locking portion and a second locking portion, the elongate groove comprises a first elongate groove provided in the first locking portion and a second elongate groove provided in the second locking portion, and the fixed shaft extends through the first elongate groove and the second elongate groove.
4. A supporting foot according to claim 3, wherein a space for movement of the elastic member is provided between the first locking portion and the second locking portion, one end of the elastic member is connected to the fixed shaft, and the other end of the elastic member is connected to the lower joint.
5. The support foot according to claim 4, wherein the lower joint has a fixed post, one end of the elastic member is connected to the fixed shaft, and the other end of the elastic member is connected to the fixed post.
6. The support foot of claim 5, wherein the lower joint has a first limit plate and a second limit plate, and the first limit plate, the second limit plate and the fixed column enclose a movement space for the elastic member.
7. The support foot of claim 2, wherein the retaining groove defines an opening, the fixed shaft passes through the retaining groove, the locking portion is disengaged from the retaining groove to a position, and the lower joint is operable to be folded over the upper joint along the opening.
8. A support assembly comprising at least 2 support feet according to any one of claims 1 to 7 and a connecting portion connecting the two support feet.
9. The support assembly of claim 8, wherein the connecting portion is removably connected to each support foot.
10. The support assembly of claim 9, wherein the support foot defines a first mounting hole, the connecting portion defines a second mounting hole, and a spring tab is disposed in the second mounting hole, the connecting portion extending into the first mounting hole for releasable connection therewith via the spring tab.
11. The support assembly of claim 8, wherein the connecting portion is an arcuate structure.
12. The support assembly of claim 11, including four support legs and four connecting portions, wherein each two support legs are connected by the connecting portion, and the four connecting portions are connected to the four support legs to form a circular shape.
CN201910983697.1A 2019-10-16 2019-10-16 Supporting leg and supporting component Active CN112664794B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201910983697.1A CN112664794B (en) 2019-10-16 2019-10-16 Supporting leg and supporting component
CN202311378017.6A CN117432909A (en) 2019-10-16 2019-10-16 Supporting leg and supporting component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910983697.1A CN112664794B (en) 2019-10-16 2019-10-16 Supporting leg and supporting component

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202311378017.6A Division CN117432909A (en) 2019-10-16 2019-10-16 Supporting leg and supporting component

Publications (2)

Publication Number Publication Date
CN112664794A true CN112664794A (en) 2021-04-16
CN112664794B CN112664794B (en) 2023-11-10

Family

ID=75400676

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202311378017.6A Pending CN117432909A (en) 2019-10-16 2019-10-16 Supporting leg and supporting component
CN201910983697.1A Active CN112664794B (en) 2019-10-16 2019-10-16 Supporting leg and supporting component

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN202311378017.6A Pending CN117432909A (en) 2019-10-16 2019-10-16 Supporting leg and supporting component

Country Status (1)

Country Link
CN (2) CN117432909A (en)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023983A (en) * 1978-06-29 1980-01-09 Intrepid Sealey Ltd Folding handle and fishing reel incorporating it
US6058528A (en) * 1999-03-08 2000-05-09 Yang; Chih-Huang Playpen with detachable cot
US6076205A (en) * 1999-03-08 2000-06-20 Yang; Chih-Huang Playpen with detachable frame sections
CN2613415Y (en) * 2003-01-30 2004-04-28 中山市隆成日用制品有限公司 Joint structure for perambulator
US20080247746A1 (en) * 2007-04-05 2008-10-09 David Law Tripod Mounting, Stand, or Support Attachment, Accessory, or Mechanism for Cameras and Similar Devices or Objects
US7941927B1 (en) * 2007-12-10 2011-05-17 Cold Steel Folding knife lock
US20120056408A1 (en) * 2010-09-08 2012-03-08 Lerado (Zhong Shan) Industrial Co., Ltd Foldable stroller frame with an auto-extending wheel distance adjustment
CN202753989U (en) * 2012-08-22 2013-02-27 中山市隆成日用制品有限公司 Baby cart folding joint
CN103479133A (en) * 2012-06-07 2014-01-01 明门香港股份有限公司 Infant playpen apparatus provided with utility accessories
CN203394952U (en) * 2013-07-24 2014-01-15 北京思易特科技有限责任公司 Novel hidden folding mechanism
CN203633849U (en) * 2013-10-30 2014-06-11 好孩子儿童用品有限公司 Cradle
US20150167345A1 (en) * 2013-12-13 2015-06-18 NTH Innovations, LLC Connection Apparatus, System, and Methods for Collapsible Structures
JP2015163807A (en) * 2014-02-28 2015-09-10 鍋屋バイテック株式会社 hinge device
JP2016179156A (en) * 2015-03-23 2016-10-13 敏夫 小森谷 Support leg lock device
CN208799165U (en) * 2018-04-08 2019-04-30 浙江绍兴苏泊尔生活电器有限公司 Bendable connecting pipe

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023983A (en) * 1978-06-29 1980-01-09 Intrepid Sealey Ltd Folding handle and fishing reel incorporating it
US6058528A (en) * 1999-03-08 2000-05-09 Yang; Chih-Huang Playpen with detachable cot
US6076205A (en) * 1999-03-08 2000-06-20 Yang; Chih-Huang Playpen with detachable frame sections
CN2613415Y (en) * 2003-01-30 2004-04-28 中山市隆成日用制品有限公司 Joint structure for perambulator
US20080247746A1 (en) * 2007-04-05 2008-10-09 David Law Tripod Mounting, Stand, or Support Attachment, Accessory, or Mechanism for Cameras and Similar Devices or Objects
US7941927B1 (en) * 2007-12-10 2011-05-17 Cold Steel Folding knife lock
US20120056408A1 (en) * 2010-09-08 2012-03-08 Lerado (Zhong Shan) Industrial Co., Ltd Foldable stroller frame with an auto-extending wheel distance adjustment
CN103479133A (en) * 2012-06-07 2014-01-01 明门香港股份有限公司 Infant playpen apparatus provided with utility accessories
CN202753989U (en) * 2012-08-22 2013-02-27 中山市隆成日用制品有限公司 Baby cart folding joint
CN203394952U (en) * 2013-07-24 2014-01-15 北京思易特科技有限责任公司 Novel hidden folding mechanism
CN203633849U (en) * 2013-10-30 2014-06-11 好孩子儿童用品有限公司 Cradle
US20150167345A1 (en) * 2013-12-13 2015-06-18 NTH Innovations, LLC Connection Apparatus, System, and Methods for Collapsible Structures
JP2015163807A (en) * 2014-02-28 2015-09-10 鍋屋バイテック株式会社 hinge device
JP2016179156A (en) * 2015-03-23 2016-10-13 敏夫 小森谷 Support leg lock device
CN208799165U (en) * 2018-04-08 2019-04-30 浙江绍兴苏泊尔生活电器有限公司 Bendable connecting pipe

Also Published As

Publication number Publication date
CN112664794B (en) 2023-11-10
CN117432909A (en) 2024-01-23

Similar Documents

Publication Publication Date Title
US8051784B2 (en) Folding device for a tabletop
US9759242B2 (en) Hinge device
JP7114476B2 (en) folding table and seating device
WO2005032303A1 (en) The height-adjustable folding desk
CN216059577U (en) Table frame structure with adjustable panel length
JP2008291961A (en) Hinge mechanism
CN112664794A (en) Supporting leg and supporting component
KR200472125Y1 (en) Braket for fixing oblique line type leg of furniture and hinge by using the same
US7249563B2 (en) Mechanism for folding a table leg
CN211722220U (en) Folding lifting mechanism
US11607050B2 (en) Integrated folding foot rest and leg folding mechanism thereof
CN203041166U (en) Folding table leg device
CN207821378U (en) A kind of Simple folding table
KR101297844B1 (en) Folding hinge
KR100539466B1 (en) Foldable table
JP3047234U (en) Simple table leg folding fixation device
CN208339190U (en) Folding table
CN214759698U (en) Folding table
TW202202061A (en) Foldable table capable of operating more convenient and faster
KR20060090951A (en) Desk for lecture
KR101798608B1 (en) Multi-reading desk for portability
KR20060090952A (en) Desk for lecture
CN210144409U (en) Multifunctional clothes rack
KR20130000519U (en) Foldable Bracket of a Chair
KR20090007021U (en) Folding type desk

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant