CN112444362A - Rigidity test device - Google Patents
Rigidity test device Download PDFInfo
- Publication number
- CN112444362A CN112444362A CN202011244991.XA CN202011244991A CN112444362A CN 112444362 A CN112444362 A CN 112444362A CN 202011244991 A CN202011244991 A CN 202011244991A CN 112444362 A CN112444362 A CN 112444362A
- Authority
- CN
- China
- Prior art keywords
- loading
- stabilizer bar
- assembly
- fixing
- testing device
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
- G01M5/0058—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems of elongated objects, e.g. pipes, masts, towers or railways
Abstract
The invention discloses a rigidity testing device which comprises an installation seat, a fixing assembly, a supporting assembly and a loading assembly, wherein the fixing assembly is arranged on the installation seat and is used for being connected with one end of a stabilizer bar, the supporting assembly is arranged on the installation seat and is provided with a first installation hole for the stabilizer bar to penetrate through, and the loading assembly comprises a loading support and a balancing weight, wherein the loading support is used for being connected with one end of the stabilizer bar, which is far away from the fixing assembly, and the balancing weight is used for loading the loading support. According to the invention, the deformation of one end of the stabilizer bar close to the loading assembly can be measured and recorded in the process of continuously loading the loading support by the balancing weight, and the rigidity value of the stabilizer bar can be calculated according to the loading weight of the balancing weight and the corresponding deformation, so that the aim of effectively evaluating the rigidity of the stabilizer bar can be achieved.
Description
Technical Field
The invention relates to the technical field of automobile part detection, in particular to a rigidity testing device.
Background
The stabilizer bar is also called anti-roll bar and balance bar, and is an auxiliary elastic element in the automobile suspension. The stabilizer bar is a torsion bar spring made of spring steel, is U-shaped and is transversely arranged at the front end and the rear end of the automobile. The stabilizer bar has the function of providing additional roll angle rigidity for the whole vehicle and reducing the roll angle rigidity of the vehicle body when the vehicle body rolls. However, in practical production application, because the stabilizer bar belongs to a special-shaped rod, no test device can test the rigidity of the special-shaped rod of the stabilizer bar at present, and the rigidity of the stabilizer bar cannot be effectively evaluated.
In view of the above, there is a need for a stiffness testing apparatus that overcomes or alleviates at least the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention mainly aims to provide a rigidity test device, and aims to solve the technical problem that the rigidity of a stabilizer bar cannot be effectively evaluated.
In order to achieve the above object, the present invention provides a rigidity testing device, wherein the rigidity testing device includes an installation seat, a fixing component, a supporting component and a loading component, the fixing component is disposed on the installation seat, the fixing component is used for connecting with one end of a stabilizer bar, the supporting component is disposed on the installation seat, a first installation hole for the stabilizer bar to penetrate through is disposed on the supporting component, and the loading component includes a loading bracket for connecting with one end of the stabilizer bar far away from the fixing component, and a balancing weight for loading the loading bracket.
Optionally, a plurality of accommodating spaces are formed in the loading support at intervals, the number of the balancing weights is multiple, and the balancing weights are used for being placed in the accommodating spaces one by one in a one-to-one correspondence manner so as to gradually load the stabilizer bar.
Optionally, the loading support includes a first connecting rod and a loading box, the first connecting rod is hinged to one end of the stabilizer bar, which is away from the fixing assembly, the loading box is suspended on the first connecting rod, and the loading box is provided with a plurality of accommodating spaces at intervals.
Optionally, the first connecting rod includes a rod body and two hinged portions, the rod body is connected to the loading box, the two hinged portions are both disposed at one end of the rod body away from the loading box, and the two hinged portions are disposed at opposite intervals, and the loading assembly further includes a connecting member, the connecting member is disposed through the two hinged portions and one end of the stabilizer bar away from the fixing assembly, and limits one end of the stabilizer bar away from the fixing assembly between the two hinged portions.
Optionally, the support assembly is movably disposed on the mount.
Optionally, a sliding groove is formed in the mounting seat, a sliding piece is arranged on the supporting component, and the sliding piece extends into the sliding groove and is abutted to the inner wall of the sliding groove.
Optionally, the supporting component includes first amalgamation piece and second amalgamation piece, first amalgamation piece sets up on the mount pad, the second amalgamation piece with first amalgamation piece amalgamation is connected, just first amalgamation piece with second amalgamation piece amalgamation forms first mounting hole.
Optionally, the number of the support assemblies is two, and the two support assemblies are arranged on the mounting seat at intervals.
Optionally, the fixing assembly comprises a fixing block arranged on the mounting seat and a second connecting rod arranged on the fixing block, and one end, far away from the fixing block, of the second connecting rod is used for being hinged to one end, far away from the loading assembly, of the stabilizer bar.
Optionally, the rigidity testing device further comprises a displacement measuring assembly, and the displacement measuring assembly is used for measuring the deformation of the stabilizer bar.
In the technical scheme of the invention, the provided rigidity test device comprises a mounting seat, a fixing component, a supporting component and a loading component, wherein the fixing component is used for being connected with one end of the stabilizer bar, the supporting component is used for supporting the stabilizer bar, the loading support of the loading component is connected with the other end of the stabilizer bar, and the loading support can be continuously loaded through the counterweight block, namely, in the process of continuously loading the loading support through the counterweight block, the deformation of one end of the stabilizer bar close to the loading component can be measured and recorded, and the rigidity value of the stabilizer bar can be calculated according to the loading weight of the counterweight block and the corresponding deformation, so that the aim of effectively evaluating the rigidity of the stabilizer bar can be achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of a rigidity testing apparatus and a stabilizer bar according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
fig. 3 is a schematic structural diagram of a loading assembly and a connecting member according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
11 | Sliding groove |
| 2 | Fixing assembly | 21 | Fixed block |
| 22 | Second connecting |
3 | Support assembly |
| 31 | First split block | 32 | Second split block |
| 33 | Sliding part | 34 | First mounting hole |
| 4 | Loading |
41 | Loading |
| 411 | Containing |
42 | First connecting |
| 421 | |
422 | Hinge |
| 43 | Connecting piece | 5 | Stabilizer bar |
Detailed Description
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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the invention provides a rigidity testing device, wherein the rigidity testing device comprises an installation base 1, a fixing component 2, a supporting component 3 and a loading component, the fixing component 2 is arranged on the installation base 1, the fixing component 2 is used for being connected with one end of a stabilizer bar 5, the supporting component 3 is arranged on the installation base 1, a first installation hole 34 for the stabilizer bar 5 to penetrate through is formed in the supporting component 3, and the loading component comprises a loading support 4 and a balancing weight, wherein the loading support 4 is used for being connected with one end, far away from the fixing component 2, of the stabilizer bar 5, and the balancing weight is used for loading the loading support 4.
In the technical scheme of the invention, the provided rigidity test device comprises a mounting seat 1, a fixing component 2, a supporting component 3 and a loading component, wherein the fixing component 2 is used for being connected with one end of a stabilizer bar 5, the supporting component 3 is used for supporting the stabilizer bar 5, a loading support 4 of the loading component is connected with the other end of the stabilizer bar 5, and the loading support 4 can be continuously loaded through a balancing weight, namely in the process of continuously loading the loading support 4 through the balancing weight, the deformation of one end, close to the loading component, of the stabilizer bar 5 can be measured and recorded, and the rigidity value of the stabilizer bar 5 can be calculated according to the loading weight of the balancing weight and the corresponding deformation, so that the aim of effectively evaluating the rigidity of the stabilizer bar 5 can be achieved.
In an embodiment, the loading bracket 4 has a plurality of accommodating spaces 411 formed at intervals, the number of the weight blocks is a plurality, and the weight blocks are disposed in the accommodating spaces 411 one by one in a one-to-one correspondence manner to gradually load the stabilizer bar 5. The number of the balancing weights can be n (n is a positive integer), the gravity values of the n balancing weights are t, the n balancing weights are placed in the accommodating spaces 411 one by one in a one-to-one correspondence mode to load the stabilizer bar 5 for n times, the deformation of the stabilizer bar 5 after the n times of loading can be measured and obtained and is a1, a2 and a3.. K ═ t/a1+ t/a2+ t/a3+ -. + -. + t/an)/n. The number of the accommodating space 411 and the number of the balancing weights can be set correspondingly according to actual requirements. Meanwhile, in the invention, the gravity values of the balancing weights can be different, namely, each time of loading, the balancing weight with larger gravity value can be replaced to load.
Specifically, the loading bracket 4 includes a first connecting rod 42 and a loading box 41, the first connecting rod 42 is used for being hinged to one end of the stabilizer bar 5 away from the fixing component 2, the loading box 41 is suspended on the first connecting rod 42, and a plurality of accommodating spaces 411 are spaced on the loading box 41. That is, one end of the first connection rod 42 is movably hinged to the stabilizer bar 5, the loading box 41 is suspended at the end of the first connection rod 42 far away from the stabilizer bar 5, and the plurality of accommodating spaces 411 on the loading box 41 can be sequentially arranged at intervals along the gravity direction, and the plurality of accommodating spaces 411 all penetrate through the two opposite ends of the loading box 41, the first connection rod 42 is connected with the middle position of the top of the loading box 41, thereby ensuring the stability of the suspension of the loading box 41
More specifically, referring to fig. 1 and 3, the first connecting rod 42 includes a rod body 421 and two hinge portions 422, the rod body 421 is connected to the loading box 41, the two hinge portions 422 are respectively disposed at an end of the rod body 421 away from the loading box 41, the two hinge portions 422 are oppositely disposed at intervals, the loading assembly further includes a connecting member 43, and the connecting member 43 is configured to penetrate through the two hinge portions 422 and an end of the stabilizer bar 5 away from the fixing assembly 2, and limit an end of the stabilizer bar 5 away from the fixing assembly 2 between the two hinge portions 422. The distance between the two hinge parts 422 can be used for the stabilizer bar 5 to stretch into the end away from the fixing component 2, the end of the stabilizer bar 5 away from the fixing component 2 is preset with a first connecting hole, the two hinge parts 422 can also be respectively provided with corresponding second connecting holes, the connecting piece 43 can comprise a connecting bolt and a connecting nut, the connecting bolt can sequentially pass through the second connecting hole on the first hinge part 422, the first connecting hole on the stabilizer bar 5 and the second connecting hole on the second hinge part 422, and then the connecting nut is sleeved on the connecting bolt to fix the connecting bolt, so that the end of the stabilizer bar 5 away from the fixing component 2 is limited between the two hinge parts 422, thereby reliably realizing the movable hinge between the stabilizer bar 5 and the first connecting rod 42, and facilitating the disassembly and assembly of the stabilizer bar 5.
In an embodiment, the support assembly 3 is movably arranged on the mount 1. Namely, the position of the supporting component 3 on the mounting seat 1 can be adjusted to adapt to the stabilizer bars 5 with different specifications and sizes, and the universality of the rigidity testing device is improved.
Further, referring to fig. 1 and 2, a sliding groove 11 is formed in the mounting base 1, a sliding member 33 is arranged on the support component 3, and the sliding member 33 extends into the sliding groove 11 and abuts against the inner wall of the sliding groove 11. The sliding part 33 can include a sliding bolt and a sliding nut, the head of the sliding bolt is accommodated in the sliding groove 11 and is abutted against the inner wall of the sliding groove 11, the rod part of the sliding bolt extends out of the sliding groove 11 and penetrates through the supporting component 3 to be connected with the sliding nut, so that the position of the supporting component 3 can be adjusted by loosening the sliding nut, and the position of the supporting component 3 can be fixed by tightening the sliding nut. Meanwhile, the sliding groove 11 may penetrate the mounting base 1 along the moving direction of the supporting component 3, thereby facilitating the mounting and dismounting of the supporting component 3 on the mounting base 1. The quantity of the sliding grooves 11 can be two, the two sliding grooves 11 are arranged at intervals, the quantity of the sliding pieces 33 is two, and the two sliding pieces 33 are respectively arranged at two ends of the supporting component 3 and are respectively arranged in one-to-one correspondence with the two sliding grooves 11.
In an embodiment, the supporting assembly 3 includes a first split block 31 and a second split block 32, the first split block 31 is disposed on the mounting base 1, the second split block 32 is connected to the first split block 31 in a split manner, and the first split block 31 and the second split block 32 are split to form a first mounting hole 34. Specifically, the side that first piece 31 and second piece 32 carry out the amalgamation is one side that mount pad 1 was kept away from for first piece 31, and first piece 31 and second piece 32 are for dismantling the connection, can be convenient for stabilizer bar 5's installation. The first mounting hole 34 may be a circular hole that is fitted to the middle section of the stabilizer bar 5, or may be a square hole.
Further, the number of the supporting components 3 is two, and the two supporting components 3 are arranged on the mounting seat 1 at intervals. That is, two different positions on the middle section of the stabilizer bar 5 can be respectively supported by the two support assemblies 3, so as to improve the stability of the stabilizer bar 5.
In one embodiment, the fixing assembly 2 includes a fixing block 21 disposed on the mounting base 1, and a second connecting rod 22 disposed on the fixing block 21, wherein an end of the second connecting rod 22 away from the fixing block 21 is used for being hinged to an end of the stabilizer bar 5 away from the loading assembly. Specifically, the fixing block 21 and the supporting component 3 may be respectively disposed at two adjacent sides of the mounting base 1, for example, when the mounting base 1 is horizontally placed on a certain plane, the supporting component 3 may be located at an upper side of the mounting base 1, and the fixing block 21 may be located at a front side of the mounting base 1, so as to facilitate connection of one end of the stabilizer bar 5. Meanwhile, in the present invention, the structure of the second connecting rod 22 may be the same as that of the first connecting rod 42, and will not be described herein.
Furthermore, the fixing block 21 is provided with a second mounting hole (not labeled), and the second connecting rod 22 is movably disposed in the second mounting hole. Namely, the distance between the fixing block 21 and one end of the stabilizer bar 5 far away from the loading assembly can be adjusted through the second connecting rod 22, so that the stabilizer bar 5 with different specifications and sizes can be adapted, and the universality of the rigidity testing device is further improved.
In one embodiment, the stiffness testing apparatus further includes a displacement measuring assembly (not shown) for measuring a deformation amount of the stabilizer bar 5. The displacement measuring assembly may comprise a position transmitter arranged on the loading carriage 4 and a position receiver arranged on the mounting 1. Of course, the present invention is not limited to this, and the amount of deformation of the stabilizer bar 5 may be measured by directly providing a measuring scale on the mount 1.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A stiffness testing device, comprising:
a mounting seat;
the fixing assembly is arranged on the mounting seat and is used for being connected with one end of the stabilizer bar;
the supporting assembly is arranged on the mounting seat, and a first mounting hole for the stabilizer bar to penetrate through is formed in the supporting assembly;
the loading assembly comprises a loading support and a balancing weight, wherein the loading support is connected with one end, far away from the fixing assembly, of the stabilizing rod, and the balancing weight is used for loading the loading support.
2. The rigidity testing device according to claim 1, wherein a plurality of accommodating spaces are formed at intervals on the loading support, the number of the balancing weights is multiple, and the balancing weights are used for being placed in the accommodating spaces one by one in a one-to-one correspondence manner so as to gradually load the stabilizer bar.
3. The rigidity testing device according to claim 2, wherein the loading bracket includes a first connecting rod and a loading box, the first connecting rod is hinged to an end of the stabilizer bar, the end of the stabilizer bar is away from the fixing component, the loading box is suspended on the first connecting rod, and a plurality of accommodating spaces are spaced on the loading box.
4. The stiffness testing device according to claim 3, wherein the first connecting rod includes a rod body and two hinge portions, the rod body is connected to the loading box, the two hinge portions are disposed at an end of the rod body away from the loading box, and the two hinge portions are disposed at opposite intervals, and the loading assembly further includes a connecting member for passing through the two hinge portions and an end of the stabilizer bar away from the fixing assembly and restraining an end of the stabilizer bar away from the fixing assembly between the two hinge portions.
5. A stiffness testing device according to any of claims 1-4, wherein the support assembly is movably arranged on the mounting seat.
6. The rigidity test device according to claim 5, wherein a sliding groove is formed in the mounting seat, a sliding member is arranged on the support component, and the sliding member extends into the sliding groove and abuts against the inner wall of the sliding groove.
7. The rigidity test device according to any one of claims 1 to 4, wherein the support assembly comprises a first split block and a second split block, the first split block is arranged on the mounting seat, the second split block is connected with the first split block in a split mode, and the first split block and the second split block are combined to form the first mounting hole.
8. The rigidity testing device according to any one of claims 1 to 4, wherein the number of the supporting assemblies is two, and the two supporting assemblies are arranged on the mounting seat at intervals.
9. The rigidity testing device according to any one of claims 1 to 4, wherein the fixing assembly comprises a fixing block arranged on the mounting seat, and a second connecting rod arranged on the fixing block, wherein one end of the second connecting rod, which is far away from the fixing block, is used for being hinged with one end of the stabilizing rod, which is far away from the loading assembly.
10. The rigidity testing device according to any one of claims 1 to 4, further comprising a displacement measuring assembly for measuring a deformation amount of the stabilizer bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011244991.XA CN112444362A (en) | 2020-11-10 | 2020-11-10 | Rigidity test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011244991.XA CN112444362A (en) | 2020-11-10 | 2020-11-10 | Rigidity test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112444362A true CN112444362A (en) | 2021-03-05 |
Family
ID=74736731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011244991.XA Pending CN112444362A (en) | 2020-11-10 | 2020-11-10 | Rigidity test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112444362A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202141644U (en) * | 2011-07-05 | 2012-02-08 | 蒂森克虏伯富奥辽阳弹簧有限公司 | Rigidity detecting device for stabilizer bar |
| CN105699205A (en) * | 2016-03-24 | 2016-06-22 | 安徽机电职业技术学院 | Stabilization rod rigidity testing device |
| CN106482918A (en) * | 2016-11-21 | 2017-03-08 | 安徽江淮汽车集团股份有限公司 | A kind of automobile stabilizer bar stiffness measurement device |
| CN209754970U (en) * | 2019-03-07 | 2019-12-10 | 中国汽车技术研究中心有限公司 | Clamping device for rigidity measurement of stabilizer bar |
-
2020
- 2020-11-10 CN CN202011244991.XA patent/CN112444362A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202141644U (en) * | 2011-07-05 | 2012-02-08 | 蒂森克虏伯富奥辽阳弹簧有限公司 | Rigidity detecting device for stabilizer bar |
| CN105699205A (en) * | 2016-03-24 | 2016-06-22 | 安徽机电职业技术学院 | Stabilization rod rigidity testing device |
| CN106482918A (en) * | 2016-11-21 | 2017-03-08 | 安徽江淮汽车集团股份有限公司 | A kind of automobile stabilizer bar stiffness measurement device |
| CN209754970U (en) * | 2019-03-07 | 2019-12-10 | 中国汽车技术研究中心有限公司 | Clamping device for rigidity measurement of stabilizer bar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9250158B2 (en) | Bush component force detection device | |
| US20140331757A1 (en) | Bush component force detection device | |
| CN112182697B (en) | High-precision dynamic measurement method for system tension of damping suspender | |
| US9243980B2 (en) | Bush component force detection device | |
| CN110715810B (en) | Suspension part multi-axis bench test device | |
| CN112444362A (en) | Rigidity test device | |
| Kurdi et al. | Optimization of heavy duty truck chassis design by considering torsional stiffness and mass of the structure | |
| US20150084303A1 (en) | Vehicle suspension mounting system | |
| CN214748380U (en) | Industrial vehicle removes weighing system | |
| JP5649900B2 (en) | Weight weighing device | |
| CN111122173A (en) | Restraint device for loading white body of cab | |
| CN210242960U (en) | Truck scale stabilising arrangement | |
| CN207502190U (en) | The semi-independent suspension Road Simulation Test fixture of vehicle | |
| CN109682616B (en) | Test bed for testing magnetic suspension assembly | |
| CN113865881A (en) | Rigidity test device | |
| CN113336140A (en) | Industrial vehicle removes weighing system | |
| CN219608421U (en) | Automobile torsion beam lateral endurance test detection device | |
| CN217111521U (en) | Decoupling testing device for high-speed magnetic suspension frame | |
| CN111964825A (en) | Load collection system and load collection method | |
| CN219064859U (en) | Frequency response method testing device | |
| Polisetti et al. | Comparative analysis of strain based fatigue life obtained from uni-axial and multi-axial loading of an automotive twist beam | |
| CN201152774Y (en) | Load-weight sensor for automobile | |
| Talingthaisong et al. | Influence of suspension parameters on a tilt angle of passenger bus for the stability test | |
| CN216621420U (en) | Weighing structure of carriage | |
| CN211764784U (en) | Suspension system and have its vehicle |
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: 20210305 |