CN216631845U - Part cleaning device for machining main shaft and auxiliary shaft - Google Patents
Part cleaning device for machining main shaft and auxiliary shaft Download PDFInfo
- Publication number
- CN216631845U CN216631845U CN202122466581.6U CN202122466581U CN216631845U CN 216631845 U CN216631845 U CN 216631845U CN 202122466581 U CN202122466581 U CN 202122466581U CN 216631845 U CN216631845 U CN 216631845U
- Authority
- CN
- China
- Prior art keywords
- shell
- fixed connection
- main shaft
- cleaning
- auxiliary shaft
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- 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.)
- Expired - Fee Related
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 91
- 238000003754 machining Methods 0.000 title claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000001914 filtration Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 abstract description 28
- 239000002699 waste material Substances 0.000 abstract description 23
- 239000010865 sewage Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 6
- 239000002351 wastewater Substances 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000252254 Catostomidae Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Cleaning In General (AREA)
Abstract
The utility model relates to the technical field of cleaning devices, in particular to a part cleaning device for processing a main shaft and an auxiliary shaft, which is characterized in that a supporting component is connected with a shell, a cleaning mechanism is connected with the shell, the shell is provided with a water inlet and a water outlet, a filter plate is connected with the shell, the filter plate is provided with a first filter hole, an air cylinder is connected with the shell, a piston rod is connected with the air cylinder, a cleaning plate is connected with a piston rod, a cleaning brush is connected with the cleaning plate, a waste collecting box is connected with the shell, the waste collecting box is connected with the filter plate, the waste collecting box is provided with a second filter hole, waste water is discharged from the water outlet, impurities are blocked on the filter plate by the first filter hole on the filter plate, the air cylinder drives the cleaning plate on the piston rod to push the impurities on the filter plate into the waste collecting box for storage, and residual sewage in the impurities is discharged from the second filter hole of the waste collecting box, so that the impurities in the part cleaning device for processing the main shaft and the auxiliary shaft can be removed, the water outlet is easy to be blocked in the discharging process.
Description
Technical Field
The utility model relates to the technical field of cleaning devices, in particular to a part cleaning device for machining a main shaft and an auxiliary shaft.
Background
Impurities are easy to adhere to the main shaft and the auxiliary shaft in the machining process, and the impurities on the main shaft and the auxiliary shaft need to be cleaned subsequently and then can be installed next step;
the existing part cleaning device for processing the main shaft and the auxiliary shaft utilizes ultrasonic waves to clean through a cleaning mechanism in a shell;
impurities contained in the cleaned sewage easily cause water outlet blockage in the discharge process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a part cleaning device for machining a main shaft and an auxiliary shaft, and aims to solve the problem that impurities in sewage after the main shaft and the auxiliary shaft are cleaned by the part cleaning device for machining the main shaft and the auxiliary shaft are easy to cause water outlet blockage in a discharging process.
In order to achieve the aim, the utility model provides a part cleaning device for machining a main shaft and an auxiliary shaft, which comprises an installation mechanism, a cleaning mechanism and a drainage mechanism;
the cleaning mechanism is fixedly connected with the shell and positioned in the shell, and the shell is provided with a water inlet and a water outlet;
drainage mechanism includes filter, cylinder, piston rod, clearance board, cleaning brush and collection useless box, the filter with shell fixed connection, and be located inside the shell, the filter has a plurality of first filtration pores of crossing, the cylinder with shell fixed connection, and be located inside the shell, the piston rod with cylinder output end fixed connection, the clearance board with piston rod fixed connection, and be located keep away from one side of cylinder, the cleaning brush with clearance board fixed connection, and be located the clearance board with between the filter, collect useless one side of box with the shell is dismantled and is connected, and is located inside the shell, collect useless opposite side of box with the filter is dismantled and is connected, the useless box of collection has a plurality of second filtration pores.
And wastewater is discharged from the water outlet of the shell, impurities are blocked on the filter plate by the first filter holes on the filter plate, the air cylinder drives the cleaning plate on the piston rod to push the impurities on the filter plate into the waste collecting box for storage, and residual sewage in the impurities flows to the water outlet from the second filter holes of the waste collecting box for discharge.
Wherein, installation mechanism still includes inlet valve, inlet tube, outlet valve and outlet pipe, the inlet valve with shell fixed connection, and be located inlet port department, the inlet tube with inlet valve fixed connection, and be located keep away from one side of shell, the outlet valve with shell fixed connection, and be located outlet port department, the outlet pipe with outlet valve fixed connection, and be located keep away from one side of shell.
When the main shaft and the auxiliary shaft are cleaned, the water outlet valve is in a closed state, the water inlet valve on the water inlet pipe is opened, clean water and cleaning liquid are injected into the shell from the water inlet pipe on the water inlet, when the cleaning mechanism works, the water inlet valve is closed, after cleaning is finished, the water outlet valve on the water outlet pipe is opened, and sewage in the shell is discharged from the water outlet pipe on the water outlet.
The mounting mechanism further comprises a drainage plate, and the drainage plate is fixedly connected with the shell and is positioned inside the shell.
The drainage plate can drain the sewage at the bottom of the shell to the water outlet, so that the sewage is prevented from being accumulated at the bottom of the shell.
The mounting mechanism further comprises a box door and a handle, the box door is rotatably connected with the shell and is positioned at one side close to the water inlet pipe, and the handle is fixedly connected with the box door and is positioned at one side far away from the shell.
The waste collecting box in the shell can be detached by applying force to the handle to open the box door on the shell, and impurities stored in the waste collecting box are cleaned.
The mounting mechanism further comprises a sealing ring, and the sealing ring is fixedly connected with the box door and is positioned around the box door.
The sealing ring is used for filling a gap between the box door and the shell, and water is prevented from overflowing from the gap between the shell and the box door when the cleaning mechanism in the shell works again.
The mounting mechanism further comprises a transparent plate, and the transparent plate is fixedly connected with the box door and penetrates through the box door.
The cleaning conditions of the cleaning mechanism inside the casing on the main shaft and the auxiliary shaft can be observed through the transparent plate on the box door.
The supporting assembly comprises a supporting leg and a sucker, the supporting leg is fixedly connected with the shell and is positioned at one side far away from the water inlet pipe, and the sucker is fixedly connected with the supporting leg and is positioned at one side far away from the shell.
The supporting legs of the supporting assembly provide stability for the cleaning mechanism and the drainage mechanism inside the shell, and the suckers increase the contact area of the supporting legs and a placing surface, so that the stability of the supporting legs is improved.
Wherein, wiper mechanism includes supersonic generator, air pump and gas-supply pipe, supersonic generator with shell fixed connection, and be located inside the shell, the air pump with shell fixed connection, and be located keep away from one side of outlet pipe, the gas-supply pipe with air pump output end fixed connection, and run through the shell.
The ultrasonic generator of the cleaning mechanism cleans the main shaft and the auxiliary shaft in the shell by ultrasonic waves, and the air pump conveys air into the shell through the air conveying pipe, so that the clean water and the cleaning liquid in the shell are shaken due to the injection of the air, and the cleaning effect on the main shaft and the auxiliary shaft is improved.
According to the part cleaning device for machining the main shaft and the auxiliary shaft, waste water is discharged from the water outlet of the shell, impurities are blocked on the filter plate through the first filter holes in the filter plate, the air cylinder drives the cleaning plate on the piston rod to push the impurities on the filter plate into the waste collection box to be stored, and sewage remaining in the impurities flows to the water outlet from the second filter holes in the waste collection box to be discharged, so that the problem that the water outlet is easily blocked in the discharging process due to the impurities in the sewage after the main shaft and the auxiliary shaft are cleaned by the part cleaning device for machining the main shaft and the auxiliary shaft is solved.
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 drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a part cleaning device for machining a main shaft and an auxiliary shaft, provided by the utility model;
FIG. 2 is a plan view of a part cleaning apparatus for machining a main shaft and an auxiliary shaft according to the present invention;
FIG. 3 is a sectional view of a part cleaning apparatus for machining a main shaft and an auxiliary shaft according to the present invention;
FIG. 4 is a schematic view of the filter plate and the first filter holes;
fig. 5 is a schematic structural diagram of the waste collecting box and the second filtering hole.
1-mounting mechanism, 2-housing, 3-supporting component, 4-cleaning mechanism, 5-drainage mechanism, 6-filter plate, 7-first filter hole, 8-cylinder, 9-piston rod, 10-cleaning plate, 11-cleaning brush, 12-waste collecting box, 13-second filter hole, 14-water inlet valve, 15-water inlet pipe, 16-water outlet valve, 17-water outlet pipe, 18-drainage plate, 19-box door, 20-handle, 21-sealing ring, 22-transparent plate, 23-supporting leg, 24-suction cup, 25-ultrasonic generator, 26-air pump, 27-air pipe, 28-water inlet, 29-water outlet.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 5, the present invention provides a part cleaning apparatus for processing a main shaft and an auxiliary shaft, including an installation mechanism 1, a cleaning mechanism 4 and a drainage mechanism 5;
the mounting mechanism 1 comprises a shell 2 and four supporting components 3, the four supporting components 3 are respectively and fixedly connected with the shell 2 and are all positioned at one side of the shell 2, the cleaning mechanism 4 is fixedly connected with the shell 2 and is positioned inside the shell 2, and the shell 2 is provided with a water inlet 28 and a water outlet 29;
the drainage mechanism 5 comprises a filter plate 6, an air cylinder 8, a piston rod 9, a cleaning plate 10, a cleaning brush 11 and a waste collection box 12, the filter plate 6 is fixedly connected with the shell 2, and is positioned inside the shell 2, the filter plate 6 is provided with a plurality of first filter holes 7, the cylinder 8 is fixedly connected with the shell 2, and is positioned in the shell 2, the piston rod 9 is fixedly connected with the output end of the air cylinder 8, the cleaning plate 10 is fixedly connected with the piston rod 9, and is positioned at one side far away from the cylinder 8, the cleaning brush 11 is fixedly connected with the cleaning plate 10, and is positioned between the cleaning plate 10 and the filter plate 6, one side of the waste collecting box 12 is detachably connected with the shell 2, and is positioned in the shell 2, the other side of the waste collecting box 12 is detachably connected with the filter plate 6, and the waste collecting box 12 is provided with a plurality of second filter holes 13.
In this embodiment, firstly, the main and auxiliary shafts are placed on the filter plate 6 of the drainage mechanism 5 in the housing 2 of the mounting mechanism 1, then clean water and cleaning liquid are injected into the housing 2 from the water inlet 28 according to a certain proportion until the clean water and the cleaning liquid submerge the main and auxiliary shafts on the filter plate 6, the cleaning mechanism 4 in the housing 2 cleans the main and auxiliary shafts by using ultrasonic waves, the main and auxiliary shafts are taken out from the housing 2 after cleaning is completed, then the waste water is discharged from the water outlet 29 of the housing 2, impurities are blocked on the filter plate 6 by the first filter holes 7 on the filter plate 6, the air cylinder 8 drives the cleaning plate 10 on the piston rod 9 to push the impurities on the filter plate 6 into the waste collecting box 12 for storage, and the impurities and the waste water are prevented from being discharged together to block the water outlet 29, the cleaning brush 11 moves along with the cleaning plate 10 to clean the first filtering holes 7 on the filtering plate 6, so that impurities are prevented from blocking the first filtering holes 7, the bottom of the waste collecting box 12 is inclined, residual sewage in the impurities can be guided to the second filtering holes 13 to be discharged, the supporting component 3 provides stability for the work of the cleaning mechanism 4 and the drainage mechanism 5 inside the shell 2, and the problem that the impurities in the sewage after the main and auxiliary shafts are cleaned by the part cleaning device for processing the main and auxiliary shafts easily cause the blockage of the water outlet 29 in the discharging process is solved.
Further, the mounting mechanism 1 further comprises a water inlet valve 14, a water inlet pipe 15, a water outlet valve 16 and a water outlet pipe 17, wherein the water inlet valve 14 is fixedly connected with the housing 2 and located at the water inlet 28, the water inlet pipe 15 is fixedly connected with the water inlet valve 14 and located at one side far away from the housing 2, the water outlet valve 16 is fixedly connected with the housing 2 and located at the water outlet 29, and the water outlet pipe 17 is fixedly connected with the water outlet valve 16 and located at one side far away from the housing 2; the mounting mechanism 1 further comprises a drainage plate 18, wherein the drainage plate 18 is fixedly connected with the shell 2 and is positioned inside the shell 2; the installation mechanism 1 further comprises a box door 19 and a handle 20, the box door 19 is rotatably connected with the shell 2 and is positioned at one side close to the water inlet pipe 15, and the handle 20 is fixedly connected with the box door 19 and is positioned at one side far away from the shell 2; the mounting mechanism 1 further comprises a sealing ring 21, and the sealing ring 21 is fixedly connected with the box door 19 and is positioned around the box door 19; the installation mechanism 1 further comprises a transparent plate 22, wherein the transparent plate 22 is fixedly connected with the box door 19 and penetrates through the box door 19; support assembly 3 includes supporting leg 23 and sucking disc 24, supporting leg 23 with shell 2 fixed connection to be located keep away from one side of inlet tube 15, sucking disc 24 with supporting leg 23 fixed connection is located keep away from one side of shell 2.
In this embodiment, when the main and auxiliary shafts are cleaned, the outlet valve 16 is in a closed state, the inlet valve 14 on the inlet pipe 15 is opened, clean water and cleaning solution are injected into the housing 2 from the inlet pipe 15 on the inlet 28, when the cleaning mechanism 4 is in operation, the inlet valve 14 is closed, after cleaning is completed, the outlet valve 16 on the outlet pipe 17 is opened, the sewage in the housing 2 is discharged from the outlet pipe 17 on the outlet 29, the drainage plate 18 can drain the sewage at the bottom of the housing 2 to the outlet 29, so as to prevent the sewage from accumulating at the bottom of the housing 2, and the door 19 on the housing 2 is opened by applying force to the handle 20, so that the waste collecting box 12 in the housing 2 can be removed, and the impurities stored in the waste collecting box 12 can be cleaned, the sealing ring 21 is used for filling a gap between the box door 19 and the shell 2, so that when the cleaning mechanism 4 in the shell 2 works again, water overflows from the gap between the shell 2 and the box door 19, the cleaning condition of the cleaning mechanism 4 on the main shaft and the auxiliary shaft in the shell 2 can be observed through the transparent plate 22 on the box door 19, the supporting leg 23 of the supporting component 3 provides stability for the working of the cleaning mechanism 4 and the drainage mechanism 5 in the shell 2, and the contact area of the supporting leg 23 and a placing surface is increased through the sucker 24, so that the stability of the supporting leg 23 is increased.
Further, wiper mechanism 4 includes supersonic generator 25, air pump 26 and air supply pipe 27, supersonic generator 25 with shell 2 fixed connection, and be located inside shell 2, air pump 26 with shell 2 fixed connection, and be located keep away from one side of outlet pipe 17, air supply pipe 27 with air pump 26 output fixed connection, and run through shell 2.
In this embodiment, the ultrasonic generator 25 of the cleaning mechanism 4 cleans the main shaft and the auxiliary shaft inside the housing 2 by using ultrasonic waves, and the air pump 26 delivers air into the housing 2 through the air delivery pipe 27, so that the clean water and the cleaning liquid inside the housing 2 are shaken due to the injection of the air, thereby increasing the cleaning effect on the main shaft and the auxiliary shaft.
The utility model relates to a part cleaning device for processing a main shaft and an auxiliary shaft, which is characterized in that the main shaft and the auxiliary shaft are firstly placed on a filter plate 6 of a drainage mechanism 5 in a shell 2 of an installation mechanism 1, then clear water and cleaning liquid are injected into the shell 2 from a water inlet 28 according to a certain proportion until the clear water and the cleaning liquid submerge the main shaft and the auxiliary shaft on the filter plate 6, a cleaning mechanism 4 in the shell 2 cleans the main shaft and the auxiliary shaft by utilizing ultrasonic waves, the main shaft and the auxiliary shaft are taken out from the shell 2 after the cleaning is finished, then waste water is discharged from a water outlet 29 of the shell 2, impurities are blocked on the filter plate 6 by a first filter hole 7 on the filter plate 6, and an air cylinder 8 drives a cleaning plate 10 on a piston rod 9 to push the impurities on the filter plate 6 into a waste collection box 12 for storage, the cleaning brush 11 moves along with the cleaning plate 10 to clean the first filtering holes 7 on the filtering plate 6, so that the first filtering holes 7 are prevented from being blocked by impurities, the bottom of the waste collecting box 12 is inclined, the residual sewage in the impurities can be guided to the second filtering holes 13 to be discharged, the supporting component 3 provides stability for the work of the cleaning mechanism 4 and the drainage mechanism 5 in the shell 2, and the problem that the water outlet 29 is easily blocked by the impurities in the sewage after the main and auxiliary shaft processing part cleaning device cleans the main and auxiliary shafts in the discharge process is solved.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. A part cleaning device for machining a main shaft and an auxiliary shaft is characterized by comprising an installation mechanism, a cleaning mechanism and a drainage mechanism;
the cleaning mechanism is fixedly connected with the shell and positioned in the shell, and the shell is provided with a water inlet and a water outlet;
drainage mechanism includes filter, cylinder, piston rod, clearance board, cleaning brush and collection useless box, the filter with shell fixed connection, and be located inside the shell, the filter has a plurality of first filtration pores of crossing, the cylinder with shell fixed connection, and be located inside the shell, the piston rod with cylinder output end fixed connection, the clearance board with piston rod fixed connection, and be located keep away from one side of cylinder, the cleaning brush with clearance board fixed connection, and be located the clearance board with between the filter, collect useless one side of box with the shell is dismantled and is connected, and is located inside the shell, collect useless opposite side of box with the filter is dismantled and is connected, the useless box of collection has a plurality of second filtration pores.
2. The parts cleaning apparatus for working a main shaft and an auxiliary shaft according to claim 1,
installation mechanism still includes inlet valve, inlet tube, outlet valve and outlet pipe, inlet valve with shell fixed connection, and be located inlet port department, the inlet tube with inlet valve fixed connection, and be located keep away from one side of shell, outlet valve with shell fixed connection, and be located outlet port department, the outlet pipe with outlet valve fixed connection, and be located keep away from one side of shell.
3. The parts cleaning apparatus for working a main shaft and an auxiliary shaft according to claim 1,
the mounting mechanism further comprises a drainage plate, and the drainage plate is fixedly connected with the shell and is positioned inside the shell.
4. The parts cleaning apparatus for working a main shaft and an auxiliary shaft according to claim 2,
the installation mechanism further comprises a box door and a handle, the box door is rotatably connected with the shell and is positioned at one side close to the water inlet pipe, and the handle is fixedly connected with the box door and is positioned at one side far away from the shell.
5. The parts cleaning apparatus for working a main shaft and an auxiliary shaft according to claim 4,
the mounting mechanism further comprises a sealing ring, and the sealing ring is fixedly connected with the box door and is positioned around the box door.
6. The parts cleaning apparatus for working a main shaft and an auxiliary shaft according to claim 4,
the installation mechanism further comprises a transparent plate, and the transparent plate is fixedly connected with the box door and penetrates through the box door.
7. The parts cleaning apparatus for working a main shaft and an auxiliary shaft according to claim 2,
the supporting assembly comprises a supporting leg and a sucker, the supporting leg is fixedly connected with the shell and is positioned at one side far away from the water inlet pipe, and the sucker is fixedly connected with the supporting leg and is positioned at one side far away from the shell.
8. The parts cleaning apparatus for working a main shaft and an auxiliary shaft according to claim 2,
the wiper mechanism includes supersonic generator, air pump and gas-supply pipe, supersonic generator with shell fixed connection to be located inside the shell, the air pump with shell fixed connection to be located and keep away from one side of outlet pipe, the gas-supply pipe with air pump output end fixed connection, and run through the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122466581.6U CN216631845U (en) | 2021-10-13 | 2021-10-13 | Part cleaning device for machining main shaft and auxiliary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122466581.6U CN216631845U (en) | 2021-10-13 | 2021-10-13 | Part cleaning device for machining main shaft and auxiliary shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216631845U true CN216631845U (en) | 2022-05-31 |
Family
ID=81731085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122466581.6U Expired - Fee Related CN216631845U (en) | 2021-10-13 | 2021-10-13 | Part cleaning device for machining main shaft and auxiliary shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216631845U (en) |
-
2021
- 2021-10-13 CN CN202122466581.6U patent/CN216631845U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220531 |