CN209742018U - rainwater collecting and utilizing device with multiple filtering and purifying functions - Google Patents
rainwater collecting and utilizing device with multiple filtering and purifying functions Download PDFInfo
- Publication number
- CN209742018U CN209742018U CN201822093157.XU CN201822093157U CN209742018U CN 209742018 U CN209742018 U CN 209742018U CN 201822093157 U CN201822093157 U CN 201822093157U CN 209742018 U CN209742018 U CN 209742018U
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- China
- Prior art keywords
- fixed
- rainwater
- filter screen
- pipe
- cylinder
- 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
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000010865 sewage Substances 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 8
- 238000000746 purification Methods 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims description 17
- 238000010030 laminating Methods 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000002781 deodorant agent Substances 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 24
- 238000000034 method Methods 0.000 description 4
- 239000013049 sediment Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a rainwater is collected and is utilized device with multiple filtration and purification performance, including the well seat, be equipped with the well lid in the well seat, in the standing groove was put in the well lid embedding well seat, a plurality of inlet opening has been seted up to the fixed on the well lid. Through the setting at swash plate and its lower extreme magnet piece, doped ironwork in can effectual absorption live the rainwater, because the setting of lug on the swash plate, the lug can effectually hold back by adsorbed ironwork, prevents to be washed away by the rainwater to the swash plate also can play the effect of filter screen, prevents that the large granule grit of adulteration from pounding the filter screen in the rainwater. Through the setting of orifice plate and filter screen, effectually prevented that silt from getting into in the storage water tank. Through the setting of first filter screen and active carbon particle, further promotion rainwater purifying effect, active carbon particle can effectually play deodorant effect moreover. Through the arrangement of the auger in the sewage discharge barrel, the purpose of conveniently cleaning silt is effectively achieved. And through the setting of pull board, change third filter screen that can be convenient.
Description
Technical Field
The utility model relates to a rainwater is collected and is utilized the field, concretely relates to rainwater is collected and is utilized device with multiple filtration and purification performance.
Background
Drainage systems in municipal works are divided into rainwater drainage systems and sewage drainage systems, rainwater in the rainwater drainage systems is continuously discharged to rivers, and rainwater in rainwater drainage systems in coastal cities is discharged to the sea. These water resources are not fully utilized and wasted. Therefore, the urban rainwater collecting device is very necessary to be designed, and when the existing rainwater is collected, because silt doped in the rainwater cannot be sufficiently separated and removed, a large amount of silt is easily collected in the water storage tank, the rainwater collecting capacity is seriously influenced, and the rainwater collecting device is difficult to clean.
SUMMERY OF THE UTILITY MODEL
In order to solve the existing problem, the utility model provides a rainwater with multiple filtration and purification performance is collected and is utilized device.
The utility model discloses a realize through following technical scheme:
A rainwater collecting and utilizing device with multiple filtering and purifying functions comprises a well base, wherein a well cover is arranged in the well base, the well cover is embedded into a placing groove in the well base, a plurality of water inlet holes are fixedly formed in the well cover, the top end of the well cover is flush with the top end of the well base, a cylinder is fixedly connected to the bottom end of the well base, an inclined plate is arranged in the cylinder, one end of the inclined plate is fixedly connected with the inner wall of the cylinder, a plurality of convex blocks are fixed on the top surface of the inclined plate, a magnet block is fixedly embedded into the bottom end of the inclined plate, a pore plate is fixedly installed in the cylinder at the lower end of the inclined plate in an inclined mode, filter screens are fixedly attached to the top surface of the pore plate in a fixed mode, the inclination angles of the pore plate and the inclined plate are opposite, a net rack is transversely and fixedly, the bottom end of the cylinder is fixedly connected with a water storage tank, the cylinder is communicated and connected with the water storage tank, a submersible pump is fixedly arranged at the bottom end of the water storage tank, a water outlet of the submersible pump is fixedly connected with a water discharge pipe, the top end of the water discharge pipe penetrates through the inner top end of the water storage tank and extends out of the water storage tank, a support plate is fixed at the top end of one side of the water storage tank, a dirt discharge barrel is fixed on the top surface of the support plate, an inclined pipe is arranged at the bottom end of one side of the dirt discharge barrel, which is close to the cylinder, the other end of the inclined pipe is fixedly connected with the side wall of the cylinder, the two ends of the inclined pipe are respectively communicated with the interior of the cylinder and the dirt discharge barrel, the joint of the inclined pipe and the cylinder is arranged between the top end and the bottom end of the pore plate, a guide, the sewage discharging barrel is fixedly attached with a second filter screen on the side wall provided with the through hole, the central part of the bottom end in the sewage discharging barrel is rotatably connected with a rotating block, the central part of the top end of the sewage discharging barrel is fixedly provided with a motor, the sewage discharging barrel is internally provided with an auger, the outer side wall of the auger is in fit and rotation connection with the inner wall of the sewage discharging barrel, the surface of the auger is provided with a plurality of pores, the bottom end of a rotating shaft of the auger is fixedly connected with the top end of the rotating block, the top end of the rotating shaft of the auger penetrates through the top end in the sewage discharging barrel and is fixedly connected with the output end of the motor, the sewage discharging barrel is fixedly provided with an inclined pipe, the top end of the same side wall of the inclined pipe is fixedly provided with an L-shaped discharging pipe, the L-shaped discharging pipe is obliquely arranged and is communicated with the inside of the sewage discharging barrel, the sewage discharging barrel is fixedly provided with a plurality of first through holes at the, the radian of arc shelves is unanimous with blowdown bucket lateral wall radian, and the laminating has the arc frame between two arc shelves and the blowdown bucket lateral wall, fixed mounting has the third filter screen in the arc frame, the laminating of third filter screen and blowdown bucket lateral wall, the arc frame top is fixed with the pull board, pull board and blowdown bucket lateral wall laminating sliding connection, the pull board top pierces through the internal top of cover and passes through bolt and blowdown bucket lateral wall fixed connection, cover body one side bottom department fixedly connected with aqueduct, aqueduct and the internal intercommunication of cover.
Preferably, the well seat and the cylinder are fixedly connected by welding.
Preferably, the submersible pump and the motor are respectively electrically connected with an external power supply through leads.
Compared with the prior art, the beneficial effects of the utility model are that: through the setting at swash plate and its lower extreme magnet piece, doped ironwork in can effectual absorption live the rainwater, because the setting of lug on the swash plate, the lug can effectually hold back by adsorbed ironwork, prevents to be washed away by the rainwater to the swash plate also can play the effect of filter screen, prevents that the large granule grit of adulteration from pounding the filter screen in the rainwater. Through the setting of orifice plate and filter screen, effectually prevented that silt from getting into in the storage water tank. Through the setting of first filter screen and active carbon particle, further promotion rainwater purifying effect, active carbon particle can effectually play deodorant effect moreover. Through the arrangement of the auger in the sewage discharge barrel, the purpose of conveniently cleaning silt is effectively achieved. And through the setting of pull board, change third filter screen that can be convenient.
Drawings
FIG. 1 is a block diagram of the structure of the present invention;
Fig. 2 is a cross-sectional view a-a of the structure of fig. 1 according to the present invention.
In the figure: well seat 1, well lid 2, drum 3, swash plate 4, lug 5, magnet piece 6, orifice plate 7, filter screen 8, rack 9, first filter screen 10, inlet opening 11, active carbon granule 12, storage water tank 13, immersible pump 14, drain pipe 15, pipe chute 16, blowdown bucket 17, backup pad 18, through-hole 19, second filter screen 20, pipe 21, motor 22, auger 23, pore 24, rotatory piece 25, first through-hole 26, arc frame 27, third filter screen 28, the cover body 29, pull board 30, bolt 31, arc shelves strip 32, aqueduct 33, L type row material pipe 34.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
As shown in fig. 1 and 2, a rainwater collecting and utilizing device with multiple filtering and purifying functions comprises a well base 1, wherein a well lid 2 is arranged in the well base 1, the well lid 2 is embedded in a placing groove in the well base 1, a plurality of water inlet holes 11 are fixedly arranged on the well lid 2, the top end of the well lid 2 is flush with the top end of the well base 1, a cylinder 3 is fixedly connected to the bottom end of the well base 1, an inclined plate 4 is arranged in the cylinder 3, one end of the inclined plate 4 is fixedly connected with the inner wall of the cylinder 3, a plurality of convex blocks 5 are fixed on the top surface of the inclined plate 4, a magnet block 6 is fixedly embedded at the bottom end of the inclined plate 4, a pore plate 7 is fixedly arranged in the cylinder 3 at the lower end of the inclined plate 4 in an inclined manner, a filter screen 8 is fixedly attached to the top surface of the pore plate 7, the inclination angle of the, two first filter screens 10 are fixedly installed in the net rack 9 in parallel, activated carbon particles 12 are arranged in the net rack 9 between the two first filter screens 10, a water storage tank 13 is fixedly connected to the bottom end of the cylinder 3, the cylinder 3 is communicated with the water storage tank 13, a submersible pump 14 is fixedly arranged at the bottom end of the water storage tank 13, a drain pipe 15 is fixedly connected to a water outlet of the submersible pump 14, the top end of the drain pipe 15 penetrates through the top end of the water storage tank 13 and extends out of the water storage tank 13, a supporting plate 18 is fixed at the top end of one side of the water storage tank 13, a sewage discharge barrel 17 is fixed on the top surface of the supporting plate 18, an inclined pipe 16 is arranged at the bottom end of one side of the cylinder 3 and close to the sewage discharge barrel 17, the other end of the inclined pipe 16 is fixedly connected with the side wall of the cylinder 3, two ends of the inclined pipe 16 are, the other side bottom department of blowdown bucket 17 is fixed with pipe 21, pipe 21 other end and storage water tank 13 lateral wall top department fixed connection, pipe 21 communicates with each other with storage water tank 13 is inside to be connected, a plurality of through-hole 19 has been seted up on the wall of blowdown bucket 17 and pipe 21 junction, fixed the having second filter screen 20 of pasting on the lateral wall that blowdown bucket 17 was equipped with through-hole 19 department, bottom central department swivelling joint has a rotatory piece 25 in blowdown bucket 17, blowdown bucket 17 top central department is fixed with motor 22, be equipped with auger 23 in the blowdown bucket 17, auger 23 lateral wall and blowdown bucket 17 inner wall laminating swivelling joint, auger 23 has seted up a plurality of pores 24 on the surface, auger 23's pivot bottom and swivelling block 25 top fixed connection, auger 23's pivot top pierces through blowdown bucket 17 interior top and motor 22 output fixed connection, the sewage discharging barrel 17 is fixed with an inclined pipe 16, an L-shaped discharging pipe 34 is fixed at the top end of the same side wall, the L-shaped discharging pipe 34 is arranged obliquely and communicated with the inside of the sewage discharging barrel 17, the sewage discharging barrel 17 is fixed with a guide pipe 21, a plurality of first through holes 26 are fixed at the center of the same side wall, a cover body 29 is fixedly covered at the position of the first through hole 26 on the side wall of the sewage discharging barrel 17, arc-shaped baffles 32 are symmetrically fixed at the positions, close to the side wall of the sewage discharging barrel 17, of the top end and the inner bottom end in the cover body 29 respectively, the radian of each arc-shaped baffle 32 is consistent with the radian of the side wall of the sewage discharging barrel 17, an arc-shaped frame 27 is attached between the two arc-shaped baffles 32 and the side wall of the sewage discharging barrel 17, a third filter screen 28 is fixedly installed in the arc-shaped frame 27, the third filter screen 28 is attached to the side wall of the sewage, the top end of the pull plate 30 penetrates through the top end in the cover body 29 and is fixedly connected with the side wall of the pollution discharge barrel 17 through a bolt 31, the bottom end of one side of the cover body 29 is fixedly connected with a water guide pipe 33, and the water guide pipe 33 is communicated with the interior of the cover body 29.
The well seat 1 and the cylinder 3 are fixedly connected by welding.
The submersible pump 14 and the motor 22 are respectively electrically connected with an external power supply through wires.
The working principle is as follows: the utility model discloses when using, as shown in fig. 1, at first bury this device underground below the earth's surface that the rainwater was easily gathered to will make well seat 1 and well lid 2 and ground surface parallel and level set up, also expose subaerially drain pipe 15 and blowdown bucket 17 top simultaneously. When raining like this, the rainwater can fall on the swash plate 4 in the drum 3 through inlet opening 11 on the well lid 2, when the rainwater falls on swash plate 4, swash plate 4 passes through the setting of magnet piece 6, can effectually adsorb the ironwork of living adulteration in the rainwater, like little bolt, steel nail etc., and because the setting of lug 5 on swash plate 4, lug 5 can effectually hold back by the adsorbate spare, prevent to be washed away by the rainwater, and swash plate 4 also can play the effect of filter screen 8 on the protection swash plate 4, prevent that the filter screen 8 is pounded bad to the large granule grit of adulteration in the rainwater. Then when rainwater flows onto the pore plate 7 through the inclined plate 4, silt in the rainwater can be effectively separated due to the arrangement of the filter screen 8 on the pore plate 7, the silt is effectively prevented from entering the water storage tank 13, the filtered rainwater can flow into the water storage tank 13 after being purified again through the first filter screen 10 and the activated carbon particles 12, the activated carbon particles 12 can effectively play a role in deodorization, and due to the inclined arrangement of the pore plate 7, the separated silt directly rolls into the sewage discharging barrel 17 through the inclined pipe 16 under the impact of the rainwater, after the rainwater and the silt enter the sewage discharging barrel 17, the rainwater can enter the water storage tank 13 from the guide pipe 21 through the through hole 19 and the second filter screen 20, and when the sediment in the sewage discharging barrel 17 is more, the motor 22 is started, so that the motor 22 drives the auger 23 to rotate, and the auger 23 discharges the silt at the inner bottom end of the sewage discharging barrel 17 through the L-shaped discharge pipe 34, due to the arrangement of the fine holes 24 on the packing auger 23, in the process of conveying the sediment by the packing auger 23, the rainwater doped in the sediment flows down through the fine holes 24, so that the rainwater in the sewage drainage barrel 17 is effectively prevented from being discharged by the packing auger 23. After rainwater in the water storage tank 13 is fully collected, the rainwater can be discharged into the water guide pipe 33 through the first through hole 26, the third filter screen 28 and the cover body 29 in sequence, the water guide pipe 33 discharges the rainwater into a sewer well, and in the process, due to the arrangement of the third filter screen 28, silt in the sewage discharge barrel 17 is effectively prevented from entering the cover body 29 through the first through hole 26 in the conveying process. When silt in the blowdown bucket 17 of third filter screen 28 is damaged by the extrusion in the transfer process, unscrew bolt 31 and pull out the change to third filter screen 28 through pull board 30 can, effectual convenient change third filter screen 28's that has realized purpose. When the rainwater in the water storage tank 13 needs to be used, the submersible pump 14 is started to utilize the rainwater in the water storage tank 13 through the drain pipe 15.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a rainwater is collected and is utilized device with multiple filtration and purification performance, includes well seat (1), its characterized in that: the improved manhole cover is characterized in that a manhole cover (2) is arranged in the manhole base (1), the manhole cover (2) is embedded into the manhole base (1) and is placed in a groove, a plurality of water inlet holes (11) are fixedly formed in the manhole cover (2), the top end of the manhole cover (2) is flush with the top end of the manhole base (1), a cylinder (3) is fixedly connected with the bottom end of the manhole base (1), an inclined plate (4) is arranged in the cylinder (3), one end of the inclined plate (4) is fixedly connected with the inner wall of the cylinder (3), a plurality of convex blocks (5) are fixed on the top surface of the inclined plate (4), a magnet block (6) is embedded into the bottom end of the inclined plate (4), a pore plate (7) is fixedly installed in the cylinder (3) at the lower end of the inclined plate (4), a filter screen (8) is fixedly attached to the top surface of the pore plate (7), the pore plate (7) is opposite to the inclination angle, the device is characterized in that two first filter screens (10) are fixedly arranged in parallel in the net rack (9), activated carbon particles (12) are arranged in the net rack (9) between the two first filter screens (10), a water storage tank (13) is fixedly connected to the bottom end of the cylinder (3), the cylinder (3) is communicated with the water storage tank (13), a submersible pump (14) is fixedly arranged at the inner bottom end of the water storage tank (13), a drain pipe (15) is fixedly connected to the water outlet of the submersible pump (14), the top end of the drain pipe (15) penetrates through the inner top end of the water storage tank (13) and extends out of the water storage tank (13), a supporting plate (18) is fixed to the top end of one side of the water storage tank (13), a sewage discharge barrel (17) is fixed to the top surface of the supporting plate (18), the sewage discharge barrel (17) is close to an inclined pipe (16) at the bottom end of one side, the two ends of the inclined pipe (16) are respectively communicated with the inside of the cylinder (3) and the sewage discharge barrel (17), the joint of the inclined pipe (16) and the cylinder (3) is arranged between the top end of the pore plate (7) and the bottom end, the bottom end of the other side of the sewage discharge barrel (17) is fixed with a guide pipe (21), the other end of the guide pipe (21) is fixedly connected with the top end of the side wall of the water storage tank (13), the guide pipe (21) is communicated with the inside of the water storage tank (13), a plurality of through holes (19) are formed in the wall of the joint of the sewage discharge barrel (17) and the guide pipe (21), a second filter screen (20) is fixedly attached to the side wall of the sewage discharge barrel (17) provided with the through holes (19), a rotary block (25) is rotatably connected with the center of the inner bottom end of the sewage discharge barrel (17), a motor (22) is fixed at the center of the top end of the sewage discharge, packing auger (23) lateral wall and blowdown bucket (17) inner wall laminating swivelling joint, packing auger (23) have seted up a plurality of pores (24) on the surface, the pivot bottom and rotatory piece (25) top fixed connection of packing auger (23), the pivot top of packing auger (23) pierces through in blowdown bucket (17) top and motor (22) output fixed connection, blowdown bucket (17) are fixed with slope pipe (16) same lateral wall top department and are fixed with L type row material pipe (34), L type row material pipe (34) slope setting and with blowdown bucket (17) inside intercommunication, blowdown bucket (17) are fixed with pipe (21) same lateral wall central department and are fixed and are equipped with a plurality of first through-holes (26), be equipped with first through-hole (26) department on blowdown bucket (17) lateral wall and be fixed with cover body (29), cover body (29) interior top and interior bottom end do not are fixed with arc shelves strip (32) symmetrically near blowdown bucket (17) lateral wall department, the radian of arc shelves strip (32) is unanimous with blowdown bucket (17) lateral wall radian, and the laminating has arc frame (27) between two arc shelves strip (32) and blowdown bucket (17) lateral wall, fixed mounting has third filter screen (28) in arc frame (27), third filter screen (28) and blowdown bucket (17) lateral wall laminating, arc frame (27) top is fixed with pull board (30), pull board (30) and blowdown bucket (17) lateral wall laminating sliding connection, pull board (30) top pierces through cover body (29) interior top and through bolt (31) and blowdown bucket (17) lateral wall fixed connection, cover body (29) one side bottom department fixedly connected with aqueduct (33), aqueduct (33) and cover body (29) inside intercommunication.
2. A rainwater collecting and utilizing device with multiple filtering and purifying functions as claimed in claim 1, wherein: the well seat (1) and the cylinder (3) are fixedly connected by welding.
3. A rainwater collecting and utilizing device with multiple filtering and purifying functions as claimed in claim 1, wherein: the submersible pump (14) and the motor (22) are respectively electrically connected with an external power supply through leads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822093157.XU CN209742018U (en) | 2018-12-13 | 2018-12-13 | rainwater collecting and utilizing device with multiple filtering and purifying functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822093157.XU CN209742018U (en) | 2018-12-13 | 2018-12-13 | rainwater collecting and utilizing device with multiple filtering and purifying functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209742018U true CN209742018U (en) | 2019-12-06 |
Family
ID=68703511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822093157.XU Expired - Fee Related CN209742018U (en) | 2018-12-13 | 2018-12-13 | rainwater collecting and utilizing device with multiple filtering and purifying functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209742018U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549887A (en) * | 2020-06-04 | 2020-08-18 | 陈志峰 | Intelligence municipal administration inspection shaft drainage system |
| CN111926905A (en) * | 2020-09-15 | 2020-11-13 | 潍坊宏图环保设备有限公司 | Underground sewage dredging treatment equipment |
| CN112252381A (en) * | 2020-10-26 | 2021-01-22 | 张家港宏昌钢板有限公司 | Valve table transformation device and transformation method |
| CN113417506A (en) * | 2021-06-16 | 2021-09-21 | 泰贻建设集团有限公司 | Mounting structure of pre-buried guardrail and construction method thereof |
-
2018
- 2018-12-13 CN CN201822093157.XU patent/CN209742018U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549887A (en) * | 2020-06-04 | 2020-08-18 | 陈志峰 | Intelligence municipal administration inspection shaft drainage system |
| CN111926905A (en) * | 2020-09-15 | 2020-11-13 | 潍坊宏图环保设备有限公司 | Underground sewage dredging treatment equipment |
| CN111926905B (en) * | 2020-09-15 | 2021-03-02 | 潍坊宏图环保设备有限公司 | Underground sewage dredging treatment equipment |
| CN112252381A (en) * | 2020-10-26 | 2021-01-22 | 张家港宏昌钢板有限公司 | Valve table transformation device and transformation method |
| CN113417506A (en) * | 2021-06-16 | 2021-09-21 | 泰贻建设集团有限公司 | Mounting structure of pre-buried guardrail and construction method thereof |
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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: 20191206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |