CN111648360A - Using method of manual rotation semi-recovery anchor rod - Google Patents
Using method of manual rotation semi-recovery anchor rod Download PDFInfo
- Publication number
- CN111648360A CN111648360A CN202010556511.7A CN202010556511A CN111648360A CN 111648360 A CN111648360 A CN 111648360A CN 202010556511 A CN202010556511 A CN 202010556511A CN 111648360 A CN111648360 A CN 111648360A
- Authority
- CN
- China
- Prior art keywords
- rod
- anchor
- rod body
- anchoring
- head
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the technical field of anchor rod support in geotechnical engineering, and discloses a use method of a manual rotation semi-recovery anchor rod, which comprises the following steps: s1, forming holes; s2, assembling the rod body and the anchoring cylinder; s3, grouting; s4, tensioning and locking; s5, recovering the rod body; the rod body can be rotated manually so that the linear rod head of the rod body and the linear hole in the anchor plate are respectively in a parallel state and a vertical state: when the anchor rod is vertical, the straight rod head is clamped in the groove on the anchor plate, so that the force on the rod body can be transmitted to the anchor plate through the straight rod head, and further transmitted to the rock-soil body through the anchor bodies on the periphery of the anchor plate; when parallel, can make a word pole head pass a word hole, and then can assemble or retrieve the body of rod to body of rod and an anchoring section of thick bamboo, consequently, need not to assemble or retrieve the stock body of rod with the help of mechanical equipment, labour saving and time saving, convenient high efficiency.
Description
Technical Field
The invention relates to the technical field of anchor rod support in geotechnical engineering, in particular to a using method of a manual rotation semi-recovery anchor rod.
Background
Currently, in various geotechnical engineering in China, such as slope stabilization engineering, underground chamber engineering, structural anti-floating engineering, deep foundation pit engineering, high-pressure water conveying pipeline engineering and the like, anchor rod supporting technology is rapidly developed and widely applied, and development of geotechnical engineering technology is greatly promoted. However, for temporary support projects using conventional anchor rods, after the construction is completed, a large number of anchor rods are buried in the ground and cannot be recovered, which not only occupies a large amount of underground space and forms underground garbage, but also causes the remaining anchor rods to interfere with the normal construction of subsequent projects and waste of a large amount of steel materials.
Therefore, a recoverable bolt is a necessary product of the development of bolt technology. The currently known recoverable anchor rod technology mainly comprises three types of mechanical recovery, mechanical recovery and chemical recovery, but the cost of the three recovery methods is not low: the mechanical type needs mechanical equipment, so that the construction is inconvenient and the process is complicated; mechanical recovery only needs to apply force to a recovery rod (cable), but the force is not very small, and a special jack or other equipment is needed; the hot melt or the explosion device need be installed in advance to the chemical formula is retrieved, starts hot melt device or explosion device during the recovery, and the body of rod material of fusing partly still can be retrieved with the help of mechanical equipment in addition. Others, such as: the recovery of the back spring-out non-bond steel strand rotary type recoverable enlarged head anchor rod, the recoverable plastic expansion sleeve type anchor rod and the like also needs to provide drawing force by means of mechanical equipment.
Therefore, the above-mentioned recoverable anchor rod recovery technology is not only tedious, but also time-consuming and labor-consuming, and compared with the anchor rod that needs to be recovered by mechanical equipment, the research and development work of the recoverable anchor rod technology that can be recovered by manpower alone is especially necessary.
Disclosure of Invention
In order to solve the existing technical problems, the invention provides a using method of a manual rotation semi-recovery anchor rod.
The invention is realized in this way, a method for using a manpower rotary semi-recovery anchor rod, the manpower rotary semi-recovery anchor rod comprises: the rod body comprises a rod body, an anchoring cylinder, an anchoring body, an anchorage device, an anchor backing plate and an anchor seat, wherein the rod body comprises a rod body, a connecting shaft and a linear rod head;
the method specifically comprises the following steps:
s1, forming holes: according to the parameters of geological conditions, anchor rod length and anchoring body diameter, adopting construction machinery to form a hole in the anchor rod hole;
s2, assembling the rod body and the anchoring cylinder: inserting the rod body into the anchor cylinder so that the linear rod head of the rod body is parallel to the linear hole in the anchor plate and penetrates through the linear hole, then rotating the rod body by 90 degrees around the central axis so that the linear rod head is perpendicular to the linear hole, pulling the rod body outwards so that the linear rod head is clamped in the groove in the anchor plate, and finally placing the assembled rod body and the anchor cylinder into the hole formed in the step S1;
s3, grouting: grouting outside the anchoring cylinder, and enabling the top of the anchoring body to be flush with or lower than the top of the anchoring cylinder;
s4, tensioning and locking: after the anchoring body is solidified, stretching and locking the rod body;
s5, recovering the rod body: when the temporary supporting engineering finishes anchor rod recovery, the anchor device and the anchor seat are firstly detached, then the rod body is pushed inwards, the rod head of the rod body extends out of the groove in the anchor plate, the rod body rotates around the central axis by 90 degrees, the rod head is parallel to the straight hole, and the rod body can be recovered by manually pulling the rod body.
Further, the inner diameter of the straight hole is larger than the diameter of the straight rod head.
Further, two the recess is in the perpendicular bisector direction in both sides of a word hole respectively.
Further, the peripheral rock-soil mass interacts with the anchor body to provide frictional resistance for the anchor body.
Further, the anchor interacts with the anchor barrel to provide a counter force to the anchor barrel.
Furthermore, the anchoring cylinder transmits the acting force to the connecting shaft and the rod body in sequence through the linear rod head clamped in the groove on the anchoring plate, and the rod body transmits the acting force to the anchor backing plate and the anchor seat in sequence through the anchorage device locked with the rod body.
Further, the rod body rotates in the straight hole on the anchor plate through the connecting shaft, and when the straight rod head is parallel to the straight hole, the rod body is pulled manually to recover the rod body.
Further, the rod body and the anchoring cylinder are made of steel.
Furthermore, the anchoring body, the anchorage device, the anchor backing plate and the anchor seat are designed and constructed according to the relevant standard requirements.
Further, the rod body is rotated manually so that the linear rod head of the rod body and the linear hole in the anchor plate are in parallel and perpendicular states, respectively: when the straight rod head is vertical, the straight rod head is clamped in the groove on the anchoring plate, the force on the rod body is transmitted to the anchoring plate through the straight rod head, and then transmitted to the rock-soil body through the anchoring body on the periphery of the anchoring plate; when the rod body and the anchoring cylinder are parallel, the rod body and the anchoring cylinder are assembled or recovered by enabling the rod body to penetrate through the linear hole.
Compared with the prior art, the use method of the manual rotation semi-recovery anchor rod has the following advantages: the rod body can be rotated manually so that the linear rod head of the rod body and the linear hole in the anchor plate are respectively in a parallel state and a vertical state: when the anchor rod is vertical, the straight rod head is clamped in the groove on the anchor plate, so that the force on the rod body can be transmitted to the anchor plate through the straight rod head, and further transmitted to the rock-soil body through the anchor bodies on the periphery of the anchor plate; when parallel, can make a word pole head pass a word hole, and then can assemble or retrieve the body of rod to body of rod and an anchoring section of thick bamboo, consequently, need not to assemble or retrieve the stock body of rod with the help of mechanical equipment, labour saving and time saving, convenient high efficiency.
Drawings
FIG. 1 is a flow chart of a method of using a manually rotated semi-recovered bolt of the present invention;
FIG. 2 is a transverse schematic view of a manually rotated semi-recoverable anchor of the present invention;
FIG. 3 is an axial view of an anchoring section of a manually rotated semi-recoverable anchor of the present invention;
FIG. 4 is a transverse view of a body of a manually rotated semi-retracted rock bolt of the present invention;
FIG. 5 is an axial view of a body of a manually rotated semi-retracted rock bolt of the present invention;
FIG. 6 is a transverse view of an anchoring cylinder of a manually rotated semi-retracted rock bolt of the present invention;
fig. 7 is an axial view of an anchoring cylinder of a manually rotated semi-recovery bolt of the present invention.
Wherein, 1, a rod body; 2. an anchoring cylinder; 3. an anchor; 4. an anchorage device; 5. an anchor backing plate; 6. an anchor block; 11. a shaft body; 12. a connecting shaft; 13. a linear rod head; 21. a rod body protecting cylinder; 22. an anchor sheet; 23. a head cover; 221. a straight hole; 222. and (4) a groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-7, preferred embodiments of the present invention are provided.
The using method of the manual rotation semi-recovery anchor rod provided by the embodiment can be used for anchor rod support of rock and soil construction, and certainly, the method can also be used for other building constructions, and is not limited to the application in the embodiment.
A use method of a manual rotation semi-recovery anchor rod comprises the following steps: the rod body 1 comprises a rod body 11, a connecting shaft 12 and a linear rod head 13, the anchoring body 3 comprises an anchorage device 4, an anchor backing plate 5 and an anchor seat 6, wherein the anchoring body 2 comprises a rod body protecting cylinder 21, an anchoring plate 22 and a rod head protecting cover 23, a linear hole 221 is formed in the center of the anchoring plate 22, and two grooves 222 for clamping the linear rod head 13 are formed in the linear hole 221;
the method specifically comprises the following steps:
s1, forming holes: according to the parameters of geological conditions, anchor rod length and diameter of the anchoring body 3, a construction machine is adopted to form a hole in the anchor rod hole;
s2, assembling the rod body 1 and the anchoring cylinder 2: inserting the stick body 1 into the anchor cylinder 2 so that the linear head 13 of the stick body 1 is parallel to the linear hole 221 of the anchor plate 22 and passes through the linear hole 221, then rotating the stick body 1 by 90 degrees around the central axis so that the linear head 13 is perpendicular to the linear hole 221, pulling the stick body 1 outwards so that the linear head 13 is clamped in the groove 222 of the anchor plate 22, and finally placing the assembled stick body 1 and anchor cylinder 2 into the hole formed in the step S1;
s3, grouting: grouting outside the anchoring cylinder 2, and enabling the top of the anchoring body 3 to be flush with the top of the anchoring cylinder 2 or lower than the top of the anchoring cylinder 2;
s4, tensioning and locking: after the anchoring body 3 is solidified, stretching and locking the rod body 1;
s5, recovering the rod body 1: when the temporary supporting engineering finishes and anchor rod is recovered, the anchor 4 and the anchor seat 6 are firstly removed, then the rod body 1 is pushed inwards, the rod head 13 of the rod body 1 extends out of the groove 222 on the anchoring plate 22, then the rod body 1 rotates for 90 degrees around the central axis, the rod head 13 is parallel to the straight hole 221, and the rod body 1 can be recovered by manually pulling the rod body 1.
The inner diameter of the linear hole 221 is larger than the diameter of the linear rod head 13.
The two grooves 222 are respectively located in the perpendicular bisector directions of the two sides of the linear hole 221.
Peripheral ground body and anchor body 3 interact, for anchor body 3 provides frictional resistance, anchor body 3 interacts with anchor section of thick bamboo 2 again, for anchor section of thick bamboo 2 provides reaction force, anchor section of thick bamboo 2 is through the one-line pole head 13 of card in recess 222 on anchor plate 22, transmits the effort for connecting axle 12 and pole body 11 in proper order, and pole body 11 rethread is rather than the ground tackle 4 of locking, transmits the effort for anchor backing plate 5 and anchor seat 6 in proper order to the effect of strutting is provided to the construction site.
The rod body 1 rotates in a straight hole 221 of the anchor plate 22 through the connecting shaft 12, and when the straight rod head 13 is parallel to the straight hole 221, the rod body 1 is manually pulled to recover the rod body 1.
The rod body 1 and the anchoring cylinder 2 are both made of steel.
The anchoring body 3, the anchorage device 4, the anchor backing plate 5 and the anchor seat 6 are designed and constructed according to the relevant standard requirements.
The stick body 1 is rotated by manual force so that the linear head 13 of the stick body 1 and the linear hole 221 of the anchor plate 22 are in two states of being parallel and perpendicular, respectively: when the anchor rod is vertical, the straight rod head 13 is clamped in the groove 222 on the anchor plate 22, the force on the rod body 1 is transmitted to the anchor plate 22 through the straight rod head 13, and then transmitted to the rock-soil body through the anchor body 3 on the periphery of the anchor plate 22; when parallel, the linear rod head 13 is made to pass through the linear hole 221, and then the rod body 1 and the anchoring cylinder 2 are assembled or the rod body 1 is recovered.
In summary, the present invention discloses a method for using a manually rotated semi-recycled anchor rod, which can make the linear rod head 13 of the rod body 1 and the linear hole 221 of the anchor plate 22 in parallel and perpendicular states respectively by manually rotating the rod body 1: when the anchor rod is vertical, the linear rod head 13 is clamped in the groove 222 on the anchor plate 22, so that the force on the rod body 1 can be transmitted to the anchor plate 22 through the linear rod head 13, and further transmitted to the rock-soil body through the anchor bodies 3 on the periphery of the anchor plate 22; when the rod body 1 and the anchoring cylinder 2 are parallel to each other, the rod head 13 can pass through the linear hole 221, and the rod body 1 and the anchoring cylinder 2 can be assembled or the rod body 1 can be recycled. Therefore, the anchor rod body can be assembled or recovered without mechanical equipment, and the method is time-saving, labor-saving, convenient and efficient.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The use method of the manual rotation semi-recovery anchor rod is characterized by comprising the following steps: the rod body comprises a rod body, an anchoring cylinder, an anchoring body, an anchorage device, an anchor backing plate and an anchor seat, wherein the rod body comprises a rod body, a connecting shaft and a linear rod head;
the method specifically comprises the following steps:
s1, forming holes: according to the parameters of geological conditions, anchor rod length and anchoring body diameter, adopting construction machinery to form a hole in the anchor rod hole;
s2, assembling the rod body and the anchoring cylinder: inserting the rod body into the anchor cylinder so that the linear rod head of the rod body is parallel to the linear hole in the anchor plate and penetrates through the linear hole, then rotating the rod body by 90 degrees around the central axis so that the linear rod head is perpendicular to the linear hole, pulling the rod body outwards so that the linear rod head is clamped in the groove in the anchor plate, and finally placing the assembled rod body and the anchor cylinder into the hole formed in the step S1;
s3, grouting: grouting outside the anchoring cylinder, and enabling the top of the anchoring body to be flush with or lower than the top of the anchoring cylinder;
s4, tensioning and locking: after the anchoring body is solidified, stretching and locking the rod body;
s5, recovering the rod body: when the temporary supporting engineering finishes anchor rod recovery, the anchor device and the anchor seat are firstly detached, then the rod body is pushed inwards, the rod head of the rod body extends out of the groove in the anchor plate, the rod body rotates around the central axis by 90 degrees, the rod head is parallel to the straight hole, and the rod body can be recovered by manually pulling the rod body.
2. The method of using a manually rotated semi-recoverable anchor rod according to claim 1, wherein the internal diameter of the slotted hole is greater than the diameter of the slotted rod head.
3. The method of claim 2, wherein the two grooves are respectively located in the direction of the perpendicular bisectors on both sides of the slotted hole.
4. The method of using a manually rotated semi-recoverable anchor rod according to claim 3, wherein the peripheral geotechnical masses interact with said anchors to provide frictional resistance to said anchors.
5. The method of using a manually rotated semi-recovery bolt of claim 4, wherein said anchor interacts with said anchor barrel to provide a counter force to said anchor barrel.
6. The method of claim 5, wherein the anchor cylinder sequentially transmits the acting force to the connecting shaft and the rod body through the linear rod head clamped in the groove of the anchor plate, and the rod body sequentially transmits the acting force to the anchor backing plate and the anchor seat through the anchor locked with the rod body.
7. The method of claim 6, wherein said rod is rotated in said slotted hole of said anchor plate by said connecting shaft, and when said slotted rod head is parallel to said slotted hole, said rod is manually pulled to retract said rod.
8. The method of using a manually rotated semi-recoverable anchor rod according to any one of claims 1 to 7, wherein the rod body and the anchoring barrel are both made of steel.
9. The method for using the manual rotation semi-recovery anchor rod as claimed in claim 8, wherein the anchoring body, the anchorage device, the anchor backing plate and the anchor seat are designed and constructed according to the relevant specification requirements.
10. The method of claim 9, wherein the manual rotation of the body of the bolt causes the head of the body of the bolt to be parallel to and perpendicular to the bore of the anchor plate: when the straight rod head is vertical, the straight rod head is clamped in the groove on the anchoring plate, the force on the rod body is transmitted to the anchoring plate through the straight rod head, and then transmitted to the rock-soil body through the anchoring body on the periphery of the anchoring plate; when the rod body and the anchoring cylinder are parallel, the rod body and the anchoring cylinder are assembled or recovered by enabling the rod body to penetrate through the linear hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010556511.7A CN111648360A (en) | 2020-06-17 | 2020-06-17 | Using method of manual rotation semi-recovery anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010556511.7A CN111648360A (en) | 2020-06-17 | 2020-06-17 | Using method of manual rotation semi-recovery anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111648360A true CN111648360A (en) | 2020-09-11 |
Family
ID=72351605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010556511.7A Pending CN111648360A (en) | 2020-06-17 | 2020-06-17 | Using method of manual rotation semi-recovery anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111648360A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2433272C1 (en) * | 2010-04-07 | 2011-11-10 | Учреждение Российской академии наук Институт горного дела Сибирского отделения РАН | Method to install anchor and device for its realisation |
| CN102605780A (en) * | 2012-04-17 | 2012-07-25 | 周治国 | Recyclable anchor rod for foundation pit support and construction method thereof |
| US20140105690A1 (en) * | 2012-10-11 | 2014-04-17 | Stephen C. Tadolini | Tension Cable Bolt |
| CN208088295U (en) * | 2018-03-21 | 2018-11-13 | 中国化学工程第十三建设有限公司 | Anchor pile |
| CN208201859U (en) * | 2017-11-22 | 2018-12-07 | 中国建筑股份有限公司 | A kind of recyclable anchor pole recycled of the slope reinforcement for widening of subgrade |
| CN110042835A (en) * | 2019-04-02 | 2019-07-23 | 泰安市岱宗机电科技开发有限公司 | It is bored certainly for native, layer of sand from anchor recoverable anchor rod and its anchoring process |
| CN210250351U (en) * | 2019-04-30 | 2020-04-07 | 圣路机械(嘉兴)制造有限公司 | Conveniently-detached center rod of sickbed wheel |
-
2020
- 2020-06-17 CN CN202010556511.7A patent/CN111648360A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2433272C1 (en) * | 2010-04-07 | 2011-11-10 | Учреждение Российской академии наук Институт горного дела Сибирского отделения РАН | Method to install anchor and device for its realisation |
| CN102605780A (en) * | 2012-04-17 | 2012-07-25 | 周治国 | Recyclable anchor rod for foundation pit support and construction method thereof |
| US20140105690A1 (en) * | 2012-10-11 | 2014-04-17 | Stephen C. Tadolini | Tension Cable Bolt |
| CN208201859U (en) * | 2017-11-22 | 2018-12-07 | 中国建筑股份有限公司 | A kind of recyclable anchor pole recycled of the slope reinforcement for widening of subgrade |
| CN208088295U (en) * | 2018-03-21 | 2018-11-13 | 中国化学工程第十三建设有限公司 | Anchor pile |
| CN110042835A (en) * | 2019-04-02 | 2019-07-23 | 泰安市岱宗机电科技开发有限公司 | It is bored certainly for native, layer of sand from anchor recoverable anchor rod and its anchoring process |
| CN210250351U (en) * | 2019-04-30 | 2020-04-07 | 圣路机械(嘉兴)制造有限公司 | Conveniently-detached center rod of sickbed wheel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5934836A (en) | Ground anchor device | |
| KR101584054B1 (en) | Micropile construction method for pretention | |
| CN110042835B (en) | Self-drilling and self-anchoring recoverable anchor rod for soil and sand layer and anchoring method thereof | |
| CN108442386B (en) | Detachable core expansion anchoring structure device and assembly construction method thereof | |
| CN212801514U (en) | Manpower rotating semi-recovery anchor rod | |
| CN112943255B (en) | Temporary supporting structure and method for recovery type round pipe-jacking working well | |
| EP1712685B1 (en) | Process for the consolidation of excavation faces by means of expansible tension member | |
| CN111648360A (en) | Using method of manual rotation semi-recovery anchor rod | |
| CN211547710U (en) | Recoverable central type anchor rope | |
| CN210917343U (en) | Can dismantle locking-type device of anchor rope | |
| CN111691416B (en) | Using method of manual push-pull semi-recovery anchor rod | |
| CN212801515U (en) | Manpower push-and-pull semi-recovery anchor rod | |
| CN108360514A (en) | A kind of double-layer nested dish-shaped enlarged footing anchor pole of rotary squeezing and its application method | |
| JP2021021235A (en) | Foundation pile and foundation pile driving method | |
| CN108612099A (en) | A kind of inclined cutout spiral tensioning head anchor pole and its application method | |
| CN202164599U (en) | Reinforcing pile enabling reinforcing rib body to be recycled | |
| CN206581314U (en) | Screw head muscle body posttension pile foundation | |
| CN212774354U (en) | Anchor rod for reinforcing tunnel construction | |
| CN113586112A (en) | Non-grouting anchor rod structure and construction method thereof | |
| JP2008025148A (en) | Large-sized composite pile composed of steel pipe and soil cement | |
| CN220394503U (en) | Rock-socketed pouring anti-pulling pile with embedded anchor rod | |
| CN217267501U (en) | Foundation pit supporting structure | |
| CN102359107B (en) | Stiffening pile for reclaiming reinforcing body | |
| CN218466548U (en) | Deep basal pit anchor bolt supporting construction | |
| CN218090830U (en) | Anti-floating anchor bolt structure |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200911 |
|
| RJ01 | Rejection of invention patent application after publication |