CN208340242U - A kind of water process sewage filter device - Google Patents

A kind of water process sewage filter device Download PDF

Info

Publication number
CN208340242U
CN208340242U CN201820584963.4U CN201820584963U CN208340242U CN 208340242 U CN208340242 U CN 208340242U CN 201820584963 U CN201820584963 U CN 201820584963U CN 208340242 U CN208340242 U CN 208340242U
Authority
CN
China
Prior art keywords
work box
plate
interior
web plate
cleaning 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.)
Expired - Fee Related
Application number
CN201820584963.4U
Other languages
Chinese (zh)
Inventor
黄春兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201820584963.4U priority Critical patent/CN208340242U/en
Application granted granted Critical
Publication of CN208340242U publication Critical patent/CN208340242U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Filtration Of Liquid (AREA)

Abstract

The utility model relates to the technical fields of water process can enhance filter effect more particularly to a kind of water process sewage filter device;The discharge effect of sewage is improved simultaneously, enhances usability;And conveniently web plate is cleaned, improve use reliability;Including work box, pedestal, bracket, web plate, input pipe and efferent duct, control valve is provided on efferent duct;It further include filter plate, the first connecting plate and the first in command, the first connecting plate is fixedly connected on the left of filter plate, and the first in command is fixedly mounted on the first connecting plate left end;It further include the second connecting plate, second handle, the first cleaning device and the second cleaning device, the second connecting plate right end perimeter is contacted with work box left end upper half area, and the first cleaning device and the second cleaning device bottom end are contacted with filter plate and web plate respectively;It further include discharge bucket and holder, discharge bucket is fixedly mounted on delivery outlet, and efferent duct is arranged on the downside of discharge bucket rear end, and holder is placed on pedestal top.

Description

A kind of water process sewage filter device
Technical field
The utility model relates to the technical fields of water process, more particularly to a kind of water process sewage filter device.
Background technique
It is well known that water process is a kind of for being filtered in sewage disposal process to sewage with sewage filter device Processing, so as to the subsequent auxiliary device purified to it, is widely used in environment protection field;Existing water process It include work box, pedestal, bracket, web plate, input pipe and efferent duct with sewage filter device, bracket is set on the base, work Case is arranged on bracket, and working chamber is provided in work box, and input pipe setting is arranged in work box top, efferent duct in work box On the downside of rear end, control valve is provided on efferent duct, web plate is arranged in working chamber;Existing water process is made with sewage filter device Sewage need to be only input in work box by the used time by input pipe, be filtered later by web plate to the rubbish in sewage, most Filtered sewage is exported by efferent duct afterwards;Existing water process discovery web plate in sewage filter device use Rubbish in sewage can be filtered, filter effect is limited;And filtered sewage has part and still stays in work box In inner bottom wall, discharge effect is limited, limited so as to cause its usability;And inconvenience cleans web plate, so as to cause it Use reliability is poor.
Utility model content
In order to solve the above technical problems, the utility model, which provides one kind, can enhance filter effect;The row of sewage is improved simultaneously Effect out enhances usability;And conveniently web plate is cleaned, improve the water process sewage filter device of use reliability.
A kind of water process sewage filter device of the utility model, including work box, pedestal, bracket, web plate, input pipe And efferent duct, bracket are set on the base, work box is arranged on bracket, and working chamber, input pipe setting are provided in work box On work box top, control valve is provided on efferent duct, web plate is arranged in working chamber;It further include filter plate, the first connecting plate And the first in command, be provided with the first port on the work box left end lower half region, front side wall lower half region in work box, it is interior after Fixing groove and first right side are solid after fixing groove, first before being provided with first respectively at side wall lower half region and interior right side wall lower half region Determine slot, the filter plate right end passes through the first port and is inserted into the first right fixing groove, and filter plate rear and front end is inserted into respectively Before to first after fixing groove and first in fixing groove, and filter plate left end lateral wall and the first port inner sidewall are in close contact, institute It states the first connecting plate to be fixedly connected on the left of filter plate, and the first connecting plate right end perimeter is contacted with work box left end, institute It states the first in command and is fixedly mounted on the first connecting plate left end;It further include the second connecting plate, second handle, the first cleaning device and second Cleaning device is provided with the second port on the upper half area of the work box left end, front side wall upper half area, interior rear wall in work box Fixing groove and the second right fixation after fixing groove, second before being respectively arranged with second at upper half area and interior right side wall upper half area Slot, the web plate right end pass through the second port and are inserted into the second right fixing groove, and web plate rear and front end is inserted into second respectively After preceding fixing groove and second in fixing groove, and web plate left end lateral wall and the second port inner sidewall are in close contact, and described second connects Fishplate bar is fixedly connected on the left of web plate, and the second connecting plate right end perimeter is contacted with work box left end upper half area, described Second handle is fixedly mounted on the second connecting plate left end, and first cleaning device and the second cleaning device are arranged in work box, And first cleaning device and the second cleaning device bottom end contacted respectively with filter plate and web plate;It further include discharge bucket and holder, it is described Work box bottom end is provided with delivery outlet, and discharge bucket is fixedly mounted on delivery outlet, and door is equipped on discharge bucket output end, described Efferent duct is arranged on the downside of discharge bucket rear end, and holder is placed on pedestal top, and holder top is provided with placing groove.
A kind of water process sewage filter device of the utility model, the bracket include fixed frame and four groups of pillars, institute It states fixed frame to be sleeved on work box, and fixed frame inner sidewall is fixedly connected with the overseas side wall of work box bottom half, described four groups Pillar is separately positioned in fixed frame bottom end front left side, left rear side, forward right side and right lateral side, and four groups of pillar bottom ends respectively with bottom The left front region in seat top, left back region, right forefoot area are connected with right rear region.
A kind of water process sewage filter device of the utility model, first cleaning device includes first baffle and first Brush board, the first baffle rear and front end are connect with front side wall left area in work box and interior rear wall left area respectively, And first baffle top and bottom end are contacted with web plate bottom end left area and filter plate top left area respectively, first brush Plate rear and front end is connect on the left of front side wall in work box and on the left of interior rear wall respectively, and the first brush board top and web plate bottom end Left area contact, the first brush board left and right ends are connect on the upside of left side wall in work box and first baffle left end respectively, described First brush board bottom end is provided with the first bristle, and the first bristle is contacted with filter plate top left area.
A kind of water process sewage filter device of the utility model, second cleaning device includes second baffle and second Brush board, the second baffle rear and front end are connect with front side wall top left region in work box and interior rear wall top left region respectively, And second baffle top and bottom end are contacted with work box inner roof wall left area and web plate top left area respectively, described second Brush board rear and front end is connect with front side wall upper left side in work box and interior rear wall upper left side respectively, and the second brush board top and work Make case inner roof wall left contact, the second brush board left and right ends are respectively and on the upside of left side wall upper end in work box and second baffle left end Connection, second brush board bottom end is provided with the second bristle, and the second bristle is contacted with web plate top left area.
A kind of water process sewage filter device of the utility model, further includes three groups of transparent baffles, before the work box It is provided with installing port on end upper half area, middle part and lower half region, three groups of transparent baffles are separately positioned on three groups of installing ports.
A kind of water process sewage filter device of the utility model further includes two groups of knobs, two groups of knobs difference It is arranged on holder rear and front end.
Compared with prior art the utility model has the following beneficial effects: secondary filter can be carried out to sewage by filter plate, To enhance filter effect;Sewage can be made to fall into discharge bucket output simultaneously, and be discharged by the efferent duct on discharge bucket, from And the discharge effect of sewage is improved, enhance usability;And can by hold second handle and by the second connecting plate together with web plate from It is pulled out in work box, so that convenient clean web plate, improves use reliability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the portion the A partial enlarged view of Fig. 1;
It is attached marked in the figure: 1, work box;2, pedestal;3, bracket;4, web plate;5, input pipe;6, efferent duct;7, filter plate; 8, the first connecting plate;9, the first in command;10, the second connecting plate;11, second handle;12, the first cleaning device;13, discharge bucket;14, Holder;15, fixed frame;16, pillar;17, first baffle;18, the first brush board;19, second baffle;20, the second bristle;21, Transparent baffle;22, it shakes hands.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
As shown in Figure 1 to Figure 3, a kind of water process sewage filter device of the utility model, including work box 1, pedestal 2, bracket 3, web plate 4, input pipe 5 and efferent duct 6, bracket is set on the base, and work box is arranged on bracket, is set in work box It is equipped with working chamber, input pipe setting is provided with control valve on work box top, efferent duct, and web plate is arranged in working chamber;Also Including filter plate 7, the first connecting plate 8 and the first in command 9, work box left end is provided with the first port, work box on lower half region Fixing groove before being provided with first respectively at interior front side wall lower half region, interior rear wall lower half region and interior right side wall lower half region, Fixing groove and the first right fixing groove after first, filter plate right end pass through the first port and are inserted into the first right fixing groove, filter Before plate rear and front end is inserted into first respectively after fixing groove and first in fixing groove, and filter plate left end lateral wall and the first port Inner sidewall is in close contact, and the first connecting plate is fixedly connected on the left of filter plate, and the first connecting plate right end perimeter and work The contact of case left end, the first in command are fixedly mounted on the first connecting plate left end;It further include the second connecting plate 10, second handle 11, One cleaning device 12 and the second cleaning device are provided with the second port on the upper half area of work box left end, front side wall upper half in work box Fixing groove after fixing groove, second before being respectively arranged with second at region, interior rear wall upper half area and interior right side wall upper half area With the second right fixing groove, web plate right end passes through the second port and is inserted into the second right fixing groove, and web plate rear and front end is inserted respectively After entering to fixing groove before second and second in fixing groove, and web plate left end lateral wall and the second port inner sidewall are in close contact, the Two connecting plates are fixedly connected on the left of web plate, and the second connecting plate right end perimeter is contacted with work box left end upper half area, Second handle is fixedly mounted on the second connecting plate left end, and the first cleaning device and the second cleaning device are arranged in work box, and the One cleaning device and the second cleaning device bottom end are contacted with filter plate and web plate respectively;It further include discharge bucket 13 and holder 14, work Bottom end is provided with delivery outlet, and discharge bucket is fixedly mounted on delivery outlet, and door is equipped on discharge bucket output end, and efferent duct is set It sets on the downside of discharge bucket rear end, holder is placed on pedestal top, and holder top is provided with placing groove;It can pass through filtering Plate carries out secondary filter to sewage, to enhance filter effect;Sewage can be made to fall into discharge bucket output simultaneously, and by going out Efferent duct discharge on hopper enhances usability to improve the discharge effect of sewage;And it can be by holding second handle and inciting somebody to action Second connecting plate is pulled out out of work box together with web plate, so that convenient clean web plate, improves use reliability.
A kind of water process sewage filter device of the utility model, bracket include fixed frame 15 and four groups of pillars 16, Gu Determine frame to be sleeved on work box, and fixed frame inner sidewall is fixedly connected with the overseas side wall of work box bottom half, four groups of pillar difference It is arranged in fixed frame bottom end front left side, left rear side, forward right side and right lateral side, and four groups of pillar bottom ends are left with pedestal top respectively Forefoot area, left back region, right forefoot area are connected with right rear region, caused by can reduce bracket when holder is placed and is taken out It influences, improves usability.
A kind of water process sewage filter device of the utility model, the first cleaning device include first baffle 17 and the first brush Plate 18, first baffle rear and front end are connect with front side wall left area in work box and interior rear wall left area respectively, and the One baffle top and bottom end are contacted with web plate bottom end left area and filter plate top left area respectively, two before and after the first brush board End is connect on the left of front side wall in work box and on the left of interior rear wall respectively, and the first brush board top and web plate bottom end left area Contact, the first brush board left and right ends are connect on the upside of left side wall in work box and first baffle left end respectively, the first brush board bottom end It is provided with the first bristle, and the first bristle is contacted with filter plate top left area;It can be when pulling out filter plate by the One baffle releases the dirt on filter plate, and secondary to the dirt progress on filter plate by the first bristle on the first brush board Cleaning improves usability.
A kind of water process sewage filter device of the utility model, the second cleaning device include second baffle 19 and the second brush Plate, second baffle rear and front end are connect with front side wall top left region in work box and interior rear wall top left region respectively, and second Baffle top and bottom end are contacted with work box inner roof wall left area and web plate top left area respectively, two before and after the second brush board End is connect with front side wall upper left side in work box and interior rear wall upper left side respectively, and the second brush board top and work box inner roof wall Left contact, the second brush board left and right ends are connect on the upside of left side wall upper end in work box and second baffle left end respectively, and second Brush board bottom end is provided with the second bristle 20, and the second bristle is contacted with web plate top left area;It can be when pulling out web plate It is released by second baffle by the rubbish on web plate is crossed, and the rubbish on web plate is carried out by the second bristle on the second brush board Secondary cleaning improves usability.
A kind of water process sewage filter device of the utility model further includes three groups of transparent baffles 21, work box front end Installing port is provided on upper half area, middle part and lower half region, three groups of transparent baffles are separately positioned on three groups of installing ports;It can It is convenient that the case where work box inner case and filter plate and web plate is checked, improve usability.
A kind of water process sewage filter device of the utility model, further includes two groups of knobs 22, and two groups of knobs are set respectively It sets on holder rear and front end, can facilitate and movement of taking is carried out to holder, improve usability.
A kind of water process sewage filter device of the utility model, when in use only need to be defeated by input pipe by sewage Enter into work box, the rubbish in sewage is filtered by web plate later, two then are carried out to sewage by filter plate again Secondary filtering exports the sewage fallen into discharge bucket finally by efferent duct;To be cleaned to filter plate and web plate, It then first holds the first in command and pulls out the first connecting plate out of work box together with filter plate, pass through first baffle during pulling out Dirt on filter plate is released, and secondary cleaning is carried out by the first bristle on the first brush board, is then held again second Hand simultaneously pulls out the second connecting plate together with web plate out of work box, will cross the rubbish on web plate by second baffle during pulling out It releases, and secondary cleaning is carried out by the second bristle on the second brush board, the dirt and rubbish of release can be fallen in discharge bucket, Opening at this time door and falls on dirt and rubbish in holder, finally carries out cleaning to the web plate of taking-up and filter plate and to putting The rubbish and dirt set in box are handled.
A kind of water process sewage filter device of the utility model, transparent baffle, web plate and filter plate with work There are sealing mechanisms between case.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change It also should be regarded as the protection scope of the utility model into modification.

Claims (6)

1. a kind of water process sewage filter device, including work box (1), pedestal (2), bracket (3), web plate (4), input pipe (5) it is arranged on pedestal (2) with efferent duct (6), bracket (3), work box (1) is arranged on bracket (3), sets in work box (1) It is equipped with working chamber, input pipe (5) setting is provided with control valve on work box (1) top, efferent duct (6), and web plate (4) setting exists In working chamber;It is characterized in that, further including filter plate (7), the first connecting plate (8) and the first in command (9), the work box (1) The first port, work box (1) interior front side wall lower half region, interior rear wall lower half region and the interior right side are provided on the lower half region of left end Fixing groove and the first right fixing groove, the filter plate (7) after fixing groove, first before being provided with first respectively at side wall lower half region Right end passes through the first port and is inserted into the first right fixing groove, and filter plate (7) rear and front end is fixed before being inserted into first respectively After slot and first in fixing groove, and filter plate (7) left end lateral wall and the first port inner sidewall are in close contact, first connection Plate (8) is fixedly connected on the left of filter plate (7), and the first connecting plate (8) right end perimeter is contacted with work box (1) left end, The first in command (9) is fixedly mounted on the first connecting plate (8) left end;Further include the second connecting plate (10), second handle (11), First cleaning device (12) and the second cleaning device are provided with the second port, work box on work box (1) the left end upper half area (1) fixed before being respectively arranged with second at interior front side wall upper half area, interior rear wall upper half area and interior right side wall upper half area Fixing groove and the second right fixing groove after slot, second, web plate (4) right end pass through the second port and are inserted into the second right fixing groove It is interior, before web plate (4) rear and front end is inserted into second respectively after fixing groove and second in fixing groove, and web plate (4) left end lateral wall It is in close contact with the second port inner sidewall, second connecting plate (10) is fixedly connected on the left of web plate (4), and the second connecting plate (10) right end perimeter is contacted with work box (1) left end upper half area, and the second handle (11) is fixedly mounted on the second company Fishplate bar (10) left end, first cleaning device (12) and the second cleaning device are arranged in work box (1), and the first cleaning device (12) it is contacted respectively with filter plate (7) and web plate (4) with the second cleaning device bottom end;It further include discharge bucket (13) and holder (14), work box (1) bottom end is provided with delivery outlet, and discharge bucket (13) is fixedly mounted on delivery outlet, and discharge bucket (13) is defeated Door is installed, on the downside of discharge bucket (13) rear end, holder (14) is placed on pedestal for efferent duct (6) setting in outlet (2) top, and holder (14) top is provided with placing groove.
2. a kind of water process sewage filter device as described in claim 1, which is characterized in that the bracket (3) includes solid Determine frame (15) and four groups of pillars (16), the fixed frame (15) is sleeved on work box (1), and fixed frame (15) inner sidewall and work Make the overseas side wall of case (1) bottom half to be fixedly connected, four groups of pillars (16) be separately positioned on fixed frame (15) bottom end front left side, In left rear side, forward right side and right lateral side, and four groups of pillar (16) bottom ends respectively with the left front region in pedestal (2) top, left back region, Right forefoot area is connected with right rear region.
3. a kind of water process sewage filter device as claimed in claim 2, which is characterized in that first cleaning device (12) Including first baffle (17) and the first brush board (18), first baffle (17) rear and front end respectively with work box (1) in front side Wall left area is connected with interior rear wall left area, and first baffle (17) top and bottom end are left with web plate (4) bottom end respectively Half region and filter plate (7) top left area contact, the first brush board (18) rear and front end respectively with work box (1) in front of It is connected on the left of side wall and on the left of interior rear wall, and the first brush board (18) top is contacted with web plate (4) bottom end left area, the first brush Plate (18) left and right ends are connect on the upside of the interior left side wall of work box (1) and first baffle (17) left end respectively, first brush board (18) bottom end is provided with the first bristle, and the first bristle is contacted with filter plate (7) top left area.
4. a kind of water process sewage filter device as claimed in claim 3, which is characterized in that second cleaning device includes Second baffle (19) and the second brush board, second baffle (19) rear and front end respectively with work box (1) interior front side wall upper left area Domain is connected with interior rear wall top left region, and second baffle (19) top and bottom end respectively with work box (1) inner roof wall left half-court Domain and web plate (4) top left area contact, second brush board rear and front end respectively with the interior front side wall upper left side of work box (1) It is connected with interior rear wall upper left side, and the second brush board top and work box (1) inner roof wall left contact, the second brush board left and right ends It is connect respectively on the upside of the interior left side wall upper end of work box (1) and second baffle (19) left end, second brush board bottom end is provided with Second bristle (20), and the second bristle (20) is contacted with web plate (4) top left area.
5. a kind of water process sewage filter device as claimed in claim 4, which is characterized in that further include three groups of transparent baffles (21), installing port, three groups of transparent baffles are provided on work box (1) the front end upper half area, middle part and lower half region (21) it is separately positioned on three groups of installing ports.
6. a kind of water process sewage filter device as claimed in claim 5, which is characterized in that further include two groups of knobs (22), two groups of knobs (22) are separately positioned on holder (14) rear and front end.
CN201820584963.4U 2018-04-23 2018-04-23 A kind of water process sewage filter device Expired - Fee Related CN208340242U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820584963.4U CN208340242U (en) 2018-04-23 2018-04-23 A kind of water process sewage filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820584963.4U CN208340242U (en) 2018-04-23 2018-04-23 A kind of water process sewage filter device

Publications (1)

Publication Number Publication Date
CN208340242U true CN208340242U (en) 2019-01-08

Family

ID=64886938

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820584963.4U Expired - Fee Related CN208340242U (en) 2018-04-23 2018-04-23 A kind of water process sewage filter device

Country Status (1)

Country Link
CN (1) CN208340242U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109589661A (en) * 2019-01-24 2019-04-09 王卓俊 One kind is filtered for industrial waste material smashs recycling equipment to pieces
CN109990453A (en) * 2019-04-11 2019-07-09 沧州沃盛源节能电器设备有限公司 A kind of instant electric water heater with residual neat recovering system
CN110386688A (en) * 2019-07-03 2019-10-29 盐城致尚物业管理有限公司 Sewage-treatment plant is used in a kind of maintenance of environment
CN110898596A (en) * 2019-12-13 2020-03-24 四川德胜集团钒钛有限公司 Quick lime water smoke dust collector
CN112441344A (en) * 2019-08-28 2021-03-05 江苏察克润滑科技有限公司 Temporary storage equipment for preparing cleaning agent

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109589661A (en) * 2019-01-24 2019-04-09 王卓俊 One kind is filtered for industrial waste material smashs recycling equipment to pieces
CN109990453A (en) * 2019-04-11 2019-07-09 沧州沃盛源节能电器设备有限公司 A kind of instant electric water heater with residual neat recovering system
CN110386688A (en) * 2019-07-03 2019-10-29 盐城致尚物业管理有限公司 Sewage-treatment plant is used in a kind of maintenance of environment
CN112441344A (en) * 2019-08-28 2021-03-05 江苏察克润滑科技有限公司 Temporary storage equipment for preparing cleaning agent
CN110898596A (en) * 2019-12-13 2020-03-24 四川德胜集团钒钛有限公司 Quick lime water smoke dust collector

Similar Documents

Publication Publication Date Title
CN208340242U (en) A kind of water process sewage filter device
CN108903781A (en) A kind of hand held cleaner
CN208990358U (en) A kind of sanitary sewage filter device
CN108403016B (en) Intelligent cleaning robot
CN214017427U (en) Full-automatic floor cleaning machine with detachable chassis
CN209828602U (en) Waste gas treatment device with dust removal function
CN211582943U (en) Automatic water tank for intelligent wet-mopping floor-sweeping robot
CN213380450U (en) Numerical control lathe is used in processing of pump accessory
CN208229630U (en) A kind of atmosphere denitration device
CN210045657U (en) Medical instrument belt cleaning device
CN210189202U (en) Bicycle frame rear fork tapping machine with cleaning device
CN213191328U (en) A vomitus processing apparatus for nursing
CN208725630U (en) A kind of hand held cleaner
CN206509272U (en) Movable grain washing and filtering device
CN210228012U (en) Side-open type dust box
CN218691963U (en) Cleaning machine for fume exhauster
CN209107171U (en) A kind of hand-held cleaners
CN218653446U (en) Dust removal device for bin top
CN208975417U (en) A kind of multi-functional off-gas cleaning equipment of the processing containing organic gases
CN219189499U (en) Dust removal cleaning device of processing machine tool
CN208345887U (en) A kind of water process purification device
CN206540249U (en) Toilet's self-cleaning type binding dust disk device
CN104405018B (en) A kind of slop pail device of defecation automatic treatment equipment
CN215201919U (en) Maintenance tool box
CN210208043U (en) Dust suppression device for teaching green plate

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190108

Termination date: 20210423