CN111425497A - Quick connector and assembling method thereof - Google Patents
Quick connector and assembling method thereof Download PDFInfo
- Publication number
- CN111425497A CN111425497A CN202010218494.6A CN202010218494A CN111425497A CN 111425497 A CN111425497 A CN 111425497A CN 202010218494 A CN202010218494 A CN 202010218494A CN 111425497 A CN111425497 A CN 111425497A
- Authority
- CN
- China
- Prior art keywords
- quick
- female end
- annular groove
- middle sleeve
- female
- 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
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003780 insertion Methods 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
- F16B7/182—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements for coaxial connections of two rods or tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/20—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using bayonet connections
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a quick connector and an assembling method thereof, wherein the quick connector comprises: the quick-insertion female end, the connecting end and the middle sleeve are arranged on the outer side of the shell; one end of the connecting end is connected with equipment, and the middle sleeve is sleeved at the other end of the connecting end in an interference fit manner; one end of the quick-insert female end is fixed with the quick-insert male end through a U-shaped card, and the other end of the quick-insert female end is sleeved on the middle sleeve in a clearance fit manner; the quick-insertion female end and the middle sleeve are rotatably connected and are relatively fixed in the axial direction. According to the quick connector and the assembling method thereof, the quick-inserting type female end is rotatably sleeved on the middle sleeve, so that the influence of the connecting end on the position of the quick-inserting type female end is not required to be considered during assembling, and the assembling difficulty is reduced. The U-shaped card can always keep the opening downward, so that the fastening performance is improved, and falling is avoided. And because the quick-plugging female end freely rotates, the quick-plugging connector keeps the consistency of the appearance under any condition.
Description
Technical Field
The invention relates to the technical field of connecting equipment, in particular to a quick connector and an assembling method thereof.
Background
The quick connector is used for realizing the connection between pipelines, is a convenient plug-and-play connection mode and is widely applied to the industrial field.
The structure of a quick connector provided by the prior art is shown in figure 1, one end of the quick connector is a quick-insertion female end, the other end of the quick connector is an external thread end, and the whole quick connector is of a straight-through type. When the quick connector is used, the external thread end is in threaded connection with a pipeline, a combined gasket is arranged between the end part of the pipeline and the external thread end in order to improve the sealing effect, and the combined gasket is tightly pressed after the quick connector and the pipeline are screwed, so that the quick connector and the pipeline are connected. Insert formula female end soon and insert formula male end soon and insert the back each other, the through-hole that radially sets up on both aligns, inserts the through-hole after aligning with U type checkpost, carries out axial fixed.
The inventor finds that the prior art has at least the following problems:
the quick connector needs the integral rotation in order to screw up when being connected with the pipeline, and the female end of inserting soon may be difficult to aim at with the through-hole on the male end of inserting soon in rotatory process, and the risk that U type checkpost opening upwards and drop can take place.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a quick connector. The specific technical scheme is as follows:
in a first aspect, a quick connector is provided, which includes: the quick-insertion female end, the connecting end and the middle sleeve are arranged on the outer side of the shell; one end of the connecting end is connected with equipment, and the middle sleeve is sleeved at the other end of the connecting end in an interference fit manner; one end of the quick-insert female end is fixed with the quick-insert male end through a U-shaped card, and the other end of the quick-insert female end is sleeved on the middle sleeve in a clearance fit manner; the quick-insertion female end and the middle sleeve are rotatably connected and are relatively fixed in the axial direction.
In a possible design, the outer wall of the middle sleeve is provided with an annular groove, the inner wall of the other end of the quick-insertion female end is provided with a hole stopper, the hole stopper is limited in the annular groove, and the width of the annular groove is larger than the diameter of the hole stopper.
In a possible design, a through hole communicated with the annular groove is formed in the middle sleeve, and the hole stopper penetrates through the through hole and the annular groove to be inserted into the inner wall of the quick-insertion female end.
In one possible design, a plurality of jacks which are uniformly distributed at intervals along the circumferential direction are arranged on the quick-insertion female end and/or the quick-insertion male end.
In one possible embodiment, the quick-insertion female end, the connecting end and the intermediate sleeve are made of hardened and tempered 45 # steel.
In one possible design, one end of the connecting end is provided with an external thread.
In a second aspect, there is provided a method of assembling a quick connector as claimed in any preceding claim, the method comprising:
connecting and fixing the connecting end with the equipment; rotating the female end of the quick-inserting type until the opening of the U-shaped card is inserted downwards; the U-shaped card is inserted to connect the quick-inserting female end with the quick-inserting male end.
In one possible design, before the connecting end is connected and fixed with the equipment, the intermediate sleeve is aligned with the quick-insertion type female end, one end of the hole stopper passes through the through hole in the intermediate sleeve and the annular groove to be inserted into the inner wall of the quick-insertion type female end, and the other end of the hole stopper is positioned in the annular groove to complete the assembly of the intermediate sleeve and the quick-insertion type female end; then the middle sleeve is sleeved on the connecting end in an interference fit mode.
The technical scheme of the invention has the following main advantages:
according to the quick connector and the assembling method thereof, the quick-inserting type female end is rotatably sleeved on the middle sleeve, so that the influence of the connecting end on the position of the quick-inserting type female end is not required to be considered during assembling, and the assembling difficulty is reduced. The U-shaped card can always keep the opening downward, so that the fastening performance is improved, and falling is avoided. And because the quick-plugging female end freely rotates, the quick-plugging connector keeps the consistency of the appearance under any condition.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a quick connector provided in the prior art;
fig. 2 is a schematic structural diagram of a quick connector according to an embodiment of the present invention.
Description of reference numerals:
1-fast inserting type female end, 2-connecting end, 3-middle sleeve and 4-hole block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
In a first aspect, an embodiment of the present invention provides a quick connector, as shown in fig. 2, including: the fast-inserting female end 1, the connecting end 2 and the middle sleeve 3; one end of the connecting end 2 is connected with equipment, and the middle sleeve 3 is sleeved at the other end of the connecting end 2 in an interference fit manner; one end of the fast-inserting type female end 1 is fixed with the fast-inserting type male end through a U-shaped card, and the other end is sleeved on the middle sleeve 3 in a clearance fit mode; the quick-insertion female end 1 and the middle sleeve 3 are rotatably connected and are relatively fixed in the axial direction.
The working principle of the quick connector provided by the embodiment of the invention is explained as follows:
when in use, the connecting end 2 is connected and fixed with equipment (the equipment is to be connected and can be pipelines, rubber pipes and the like). Rotating the quick-inserting female end 1 until the opening of the U-shaped card is inserted downwards; the inserted U-shaped card connects the quick-inserting female end 1 with the quick-inserting male end.
Therefore, according to the quick connector provided by the embodiment of the invention, the quick-plugging type female end 1 is rotatably sleeved on the middle sleeve 3, so that the influence of the connecting end 2 on the position of the quick-plugging type female end 1 is not required to be considered during assembly, and the assembly difficulty is reduced. The U-shaped card can always keep the opening downward, so that the fastening performance is improved, and falling is avoided. And because the quick-plugging female end 1 freely rotates, the appearance of the quick-plugging connector is consistent under any conditions.
In particular, how the quick-connect female end 1 can be rotatably mounted on the intermediate sleeve 3 is exemplified below:
as an example, the outer wall of the middle sleeve 3 is provided with an annular groove, the inner wall of the other end of the quick-insertion female end 1 is provided with a hole stop 4, the hole stop 4 is limited in the annular groove, and the width of the annular groove is larger than the diameter of the hole stop 4. So set up, hole fender 4 plays the spacing effect of axial, makes middle cover 3 and the female end 1 of formula of inserting soon can not produce relative displacement in the axial, and hole fender 4 can be at the ring channel internal rotation, and then makes the female end 1 of formula of inserting soon to rotate around middle cover 3.
Further, in this example, the inner wall of the fast-insertion female end 1 may be provided with a plug hole in interference fit with the hole stopper 4, and the intermediate sleeve 3 is provided with a through hole communicated with the annular groove, so that the hole stopper 4 is inserted into the inner wall of the fast-insertion female end 1 through the through hole and the annular groove. According to the arrangement, firstly, the intermediate sleeve 3 is aligned with the quick-inserting type female end 1, one end of the hole stopper 4 penetrates through the through hole and the annular groove in the intermediate sleeve 3 to be inserted into the inner wall of the quick-inserting type female end 1, and the other end of the hole stopper is positioned in the annular groove, so that the assembly of the intermediate sleeve 3 and the quick-inserting type female end 1 is completed; then, the middle sleeve 3 is sleeved on the connecting end 2 in an interference fit mode, the assembling of the quick connector is completed, and the assembling process is convenient to operate, simple, rapid and high in reliability.
As another example, in a mirror image manner to the above example, the quick-insertion female end 1 may be provided with an annular groove and a through hole connected with the annular groove, and the hole stopper 4 is fixed on the intermediate sleeve 3 through the through hole and the annular groove and is limited in the annular groove, and the similar technical effects as the above example are also achieved.
Or, the quick-insertion female end 1 and the intermediate sleeve 3 can be relatively rotated on the basis of axial fixation realized by other modes such as a bearing or embedded connection, and the embodiments of the invention are not illustrated.
In the embodiment of the invention, the quick-insertion type female end 1 and the quick-insertion type male end realize quick-insertion connection through the U-shaped card, and in order to install the U-shaped card, a plurality of jacks uniformly distributed at intervals along the circumferential direction are arranged on the quick-insertion type female end 1 and/or the quick-insertion type male end along the circumferential direction. So set up, the U type card can have more direction of insertion to select, and needs the pivoted angle to diminish when aiming at every turn, improves assembly efficiency. Further, in order to make the U-shaped card completely penetrate the quick-insertion female terminal 1 and the quick-insertion male terminal, the number of the jacks is 2n, n is a natural number, that is, the jacks are always arranged in pairs.
In order to ensure the integral strength, the quick-insertion female end 1, the connecting end 2 and the middle sleeve 3 can be made of No. 45 steel materials subjected to quenching and tempering treatment. The dimensions and specific structure of the various components can be seen in the dimensional labels of fig. 2.
In the embodiment of the invention, the connecting end 2 is in threaded connection with equipment, and one end of the connecting end 2 is provided with an external thread. For example, it may be an M27 · 1.5 gauge external thread, i.e., a plain fine-pitch external thread having a nominal diameter of 27mm and a pitch of 1.5 mm.
In a second aspect, an embodiment of the present invention provides a method for assembling a quick connector according to any one of the above items, the method including:
connecting and fixing the connecting end 2 with equipment;
rotating the quick-inserting female end 1 until the opening of the U-shaped card is inserted downwards;
the inserted U-shaped card connects the quick-inserting female end 1 with the quick-inserting male end.
According to the assembling method of the quick connector, the quick-inserting type female end 1 is rotatably sleeved on the middle sleeve 3, the influence of the connecting end 2 on the position of the quick-inserting type female end 1 does not need to be considered during assembling, and the assembling difficulty is reduced. The U-shaped card can always keep the opening downward, so that the fastening performance is improved, and falling is avoided. And because the quick-plugging female end 1 freely rotates, the appearance of the quick-plugging connector is consistent under any conditions.
Before the connecting end 2 is connected and fixed with equipment, firstly, the intermediate sleeve 3 is aligned with the fast-inserting type female end 1, one end of the hole stopper 4 penetrates through the through hole and the annular groove on the intermediate sleeve 3 to be inserted into the fast-inserting type female end 1, and the other end is positioned in the annular groove, so that the assembly of the intermediate sleeve 3 and the fast-inserting type female end 1 is completed; and then assembling the middle sleeve 3 and the connecting end 2 together in an interference fit manner to complete the self-assembling of the quick connector. So set up, each part can be processed respectively and warehousing and transportation etc. reduces the processing degree of difficulty, and the equipment is more convenient.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A quick-connect coupling, comprising: the quick-insertion female end, the connecting end and the middle sleeve are arranged on the outer side of the shell;
one end of the connecting end is connected with equipment, and the middle sleeve is sleeved at the other end of the connecting end in an interference fit manner;
one end of the quick-insert female end is fixed with the quick-insert male end through a U-shaped card, and the other end of the quick-insert female end is sleeved on the middle sleeve in a clearance fit manner;
the quick-insertion female end and the middle sleeve are rotatably connected and are relatively fixed in the axial direction.
2. The quick connector according to claim 1, wherein the outer wall of the intermediate sleeve is provided with an annular groove, the inner wall of the other end of the female end of the quick connector is provided with a hole stopper, the hole stopper is limited in the annular groove, and the width of the annular groove is larger than the diameter of the hole stopper.
3. The quick connector as claimed in claim 2, wherein the intermediate sleeve is provided with a through hole communicating with the annular groove for inserting the hole stopper into the inner wall of the female end of the quick connector through the through hole and the annular groove.
4. The quick connector according to claim 1, wherein the quick-insertion female end and/or the quick-insertion male end are provided with a plurality of insertion holes which are uniformly distributed at intervals along the circumferential direction.
5. The quick-connect coupling according to claim 1, wherein the female end, the connecting end and the intermediate sleeve are made of hardened and tempered 45-gauge steel.
6. The quick connect coupling of claim 1 wherein one end of said connecting end is externally threaded.
7. A method of assembling a quick connector as claimed in any one of claims 1 to 6, the method comprising:
connecting and fixing the connecting end with the equipment;
rotating the female end of the quick-inserting type until the opening of the U-shaped card is inserted downwards;
the U-shaped card is inserted to connect the quick-inserting female end with the quick-inserting male end.
8. The method of assembling a quick connector as claimed in claim 7, wherein, prior to connecting and securing the connecting end to the device,
firstly, aligning the intermediate sleeve with the quick-inserting type female end, inserting one end of the hole stopper into the inner wall of the quick-inserting type female end through the through hole and the annular groove on the intermediate sleeve, and positioning the other end of the hole stopper in the annular groove to complete the assembly of the intermediate sleeve and the quick-inserting type female end;
then the middle sleeve is sleeved on the connecting end in an interference fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218494.6A CN111425497A (en) | 2020-03-25 | 2020-03-25 | Quick connector and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218494.6A CN111425497A (en) | 2020-03-25 | 2020-03-25 | Quick connector and assembling method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111425497A true CN111425497A (en) | 2020-07-17 |
Family
ID=71548668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010218494.6A Pending CN111425497A (en) | 2020-03-25 | 2020-03-25 | Quick connector and assembling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111425497A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1834522A (en) * | 2005-03-18 | 2006-09-20 | 郭文礼 | Tap joint structure |
| EP2799751A1 (en) * | 2013-05-03 | 2014-11-05 | Mahle International GmbH | Fluid line coupling |
| CN204403639U (en) * | 2014-12-01 | 2015-06-17 | 林新德 | Multifunctional quick joint |
| GB2504537B (en) * | 2012-08-02 | 2015-08-05 | Alpha Fry Ltd | Connection device |
| CN207893304U (en) * | 2017-12-19 | 2018-09-21 | 山东同创汽车散热装置股份有限公司 | A kind of fast-assembling attachment device of radiator inlet and outlet pipes |
| CN208651881U (en) * | 2018-07-17 | 2019-03-26 | 浙江中房建筑设计研究院有限公司 | A kind of supplying drainage pipeline connecting structure |
| CN109838636A (en) * | 2017-11-29 | 2019-06-04 | 德国诺玛公司 | Pipe connector |
-
2020
- 2020-03-25 CN CN202010218494.6A patent/CN111425497A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1834522A (en) * | 2005-03-18 | 2006-09-20 | 郭文礼 | Tap joint structure |
| GB2504537B (en) * | 2012-08-02 | 2015-08-05 | Alpha Fry Ltd | Connection device |
| EP2799751A1 (en) * | 2013-05-03 | 2014-11-05 | Mahle International GmbH | Fluid line coupling |
| CN204403639U (en) * | 2014-12-01 | 2015-06-17 | 林新德 | Multifunctional quick joint |
| CN109838636A (en) * | 2017-11-29 | 2019-06-04 | 德国诺玛公司 | Pipe connector |
| CN207893304U (en) * | 2017-12-19 | 2018-09-21 | 山东同创汽车散热装置股份有限公司 | A kind of fast-assembling attachment device of radiator inlet and outlet pipes |
| CN208651881U (en) * | 2018-07-17 | 2019-03-26 | 浙江中房建筑设计研究院有限公司 | A kind of supplying drainage pipeline connecting structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101459304A (en) | RF coaxial connector capable of slight bias insertion | |
| US20090170364A1 (en) | Electrical connector | |
| US4378124A (en) | Hydraulic coupling device | |
| CA2442357A1 (en) | Threaded connection | |
| JP2024012603A (en) | Fitting for connecting to tubular element, tubing connection, and method for connecting fitting to tubular element | |
| KR20120083266A (en) | Push-fit pipe fitting system with support sleeve | |
| CN103591160B (en) | Oil and gas pipes defect internal detector universal joint | |
| CN201774114U (en) | Coaxial connector with automatic guide structure | |
| CN113585984A (en) | Improved torque shoulder for a connection | |
| CN111425497A (en) | Quick connector and assembling method thereof | |
| US11506233B2 (en) | Spring element | |
| CN109340228A (en) | A kind of carbon fiber pipe connection structure | |
| US7270575B2 (en) | Circuit board and socket assembly | |
| CN212584461U (en) | Metal connecting piece | |
| US9531125B2 (en) | Plug and connector with the same | |
| CN211958100U (en) | Circular connector with anti-loosening structure | |
| CN210599723U (en) | Pipe plug connecting device capable of freely rotating | |
| CN209430626U (en) | It is a kind of convenient for fixed Hooke's joint axle sleeve | |
| CN111288241A (en) | Rotary quick-insertion type high-pressure rubber hose female joint | |
| CN207269077U (en) | A kind of straight radio frequency connector of boundling | |
| CN208472981U (en) | A kind of connector | |
| CN207149802U (en) | A kind of cluster connector | |
| CN205226071U (en) | Plate shaft holds subassembly | |
| KR20140109996A (en) | Exhaust-gas turbocharger | |
| CN104487752A (en) | Pipe fitting |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200717 |