CN113175575A - Pipeline connecting device for water conservancy and hydropower construction - Google Patents
Pipeline connecting device for water conservancy and hydropower construction Download PDFInfo
- Publication number
- CN113175575A CN113175575A CN202110365247.3A CN202110365247A CN113175575A CN 113175575 A CN113175575 A CN 113175575A CN 202110365247 A CN202110365247 A CN 202110365247A CN 113175575 A CN113175575 A CN 113175575A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- pipe
- annular
- pipe box
- spring
- 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.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 14
- 238000007790 scraping Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 description 7
- 238000003780 insertion Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/1225—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using a retaining member the extremities of which, e.g. in the form of a U, engage behind a shoulder of both parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a pipeline connecting device for water conservancy and hydropower construction, which comprises pipe sleeves arranged between pipelines, wherein an impurity removing mechanism is arranged in each pipe sleeve, a mounting mechanism and a sealing mechanism are arranged at the joint of each pipe sleeve and each pipeline, each impurity removing mechanism comprises a motor, the motors are mounted on the outer sides of the pipe sleeves, the rotating shaft ends of the motors penetrate into the pipe sleeves and are provided with gears, the inner walls of the pipe sleeves are rotatably connected with toothed rings, the toothed rings are meshed with the gears, scraping plates are arranged on the inner walls of the toothed rings, frame bodies are arranged on the inner walls of the pipe sleeves, filter screens are arranged on the inner walls of the frame bodies, waste pipes are arranged at the bottom ends of the pipe sleeves, and valves are arranged on the waste pipes. The impurity removing mechanism is arranged, so that impurities contained in the pipeline can be conveniently filtered and collected, and the pipeline can be prevented from being blocked.
Description
Technical Field
The invention belongs to the technical field of pipeline connection, and particularly relates to a pipeline connecting device for water conservancy and hydropower construction.
Background
A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc.
At present, the pipeline is used in the hydraulic engineering construction, adopts the ring flange to connect, because inside does not have edulcoration mechanism, leads to intraductal easy emergence blocking phenomenon to the installation is dismantled comparatively trouble, and the leakproofness is relatively poor.
Disclosure of Invention
The invention aims to provide a pipeline connecting device for water conservancy and hydropower construction, which aims to solve the problem that a pipeline for water conservancy engineering construction is easy to block.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a pipeline connecting device for water conservancy water and electricity construction, is including setting up the pipe box between the pipeline, be equipped with edulcoration mechanism in the pipe box, the junction of pipe box and pipeline is equipped with installation mechanism and sealing mechanism, edulcoration mechanism includes the motor, the motor is installed in the pipe box outside, the pivot end of motor penetrates in the pipe box and is equipped with the gear, the inner wall rotation of pipe box is connected with the ring gear, the ring gear meshes with the gear mutually, the inner wall of ring gear is equipped with the scraper blade, the inner wall of pipe box is equipped with the framework, the inner wall of framework is equipped with the filter screen, the bottom of pipe box is equipped with the waste material pipe, be equipped with the valve on the waste material pipe.
Preferably, sealing mechanism includes first annular, second annular and third annular, first annular is seted up in the pipeline, the both sides of pipe box are seted up in the second annular, the tip of pipeline is seted up to the third annular, the inner wall fixed mounting of first annular has first spring, the one end of first spring is equipped with the limiting plate, be equipped with the plug ring on the limiting plate, the one end of plug ring runs through the third annular and is equipped with waterproof gasket.
Preferably, installation mechanism is including accepting the board, accept board fixed mounting on the pipeline, it is equipped with the second spring on the board to accept, the one end of second spring is equipped with the first in command, be equipped with the inserted bar on the first in command, be equipped with the third spring on the pipe box, the one end of third spring is equipped with the second handle, be equipped with the dead lever on the second handle, the one end of dead lever runs through the third annular, the slot has been seted up on the dead lever, the fixed slot has been seted up on the pipe box.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the impurity removing mechanism is arranged, so that impurities contained in the pipeline can be filtered and collected conveniently, and the pipeline is prevented from being blocked.
2. The invention achieves the purpose of conveniently detaching the pipeline by arranging the installation mechanism.
3. By arranging the sealing mechanism, the sealing performance between the pipelines is improved conveniently, and the use of the pipelines is facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the invention at A;
FIG. 3 is a schematic view of a conduit according to the present invention;
fig. 4 is a schematic view of the ring gear installation of the present invention.
In the figure: 10. pipe sleeve; 20. an installation mechanism; 21. a first handle; 22. fixing grooves; 23. a slot; 24. a second spring; 25. a bearing plate; 26. a second handle; 27. a third spring; 28. a plug rod; 29. fixing the rod; 30. an impurity removal mechanism; 31. a squeegee; 32. a motor; 33. a gear; 34. a toothed ring; 35. a waste pipe; 36. a frame body; 37. filtering with a screen; 40. a sealing mechanism; 41. a first ring groove; 42. a second ring groove; 43. a third ring groove; 44. a limiting plate; 45. a plug-in ring; 46. a waterproof gasket; 47. a first spring; 50. a pipeline.
Detailed Description
Referring to fig. 1-4, a pipe connecting device for water conservancy and hydropower construction comprises pipe sleeves 10 arranged between pipes 50, wherein an impurity removing mechanism 30 is arranged in the pipe sleeves 10, a mounting mechanism 20 and a sealing mechanism 40 are arranged at the joint of the pipe sleeves 10 and the pipes 50, the impurity removing mechanism 30 comprises a motor 32, the motor 32 is TCB 8024B 3, the motor 32 is arranged outside the pipe sleeves 10 to drive a gear 34 to rotate, the motor 32 is arranged outside the pipe sleeves 10, the rotating shaft end of the motor 32 penetrates into the pipe sleeves 10 and is provided with a gear 33, the inner wall of the pipe sleeves 10 is rotatably connected with a toothed ring 34, the toothed ring 34 is meshed with the gear 33, the gear 33 and the toothed ring 34 are arranged to drive a scraper 31 in the toothed ring 34 to do circular motion, the scraper 31 is arranged on the inner wall of the toothed ring 34, the scraper 31 is L-shaped, and the scraper 31 is arranged to facilitate scraping impurities attached to a filter screen 37, the inner wall of the pipe sleeve 10 is provided with a frame body 36, the frame body 36 is arranged to facilitate receiving of a filter screen 37, the inner wall of the frame body 36 is provided with the filter screen 37, the filter screen 37 is arranged to facilitate filtering of impurities in flowing liquid, the bottom end of the pipe sleeve 10 is provided with a waste pipe 35, the waste pipe 35 is arranged to facilitate storing and filtering of left-over impurities, and the waste pipe 35 is provided with a valve.
Referring to fig. 1, 2 and 3, the sealing mechanism 40 includes a first ring groove 41, a second ring groove 42 and a third ring groove 43, the first ring groove 41 is opened in the pipeline 50, the first ring groove 41 is provided to facilitate installation of a first spring 47, the second ring groove 42 is opened at two sides of the pipe sleeve 10, the second ring groove 42 is provided to facilitate insertion of the insertion ring 45, the third ring groove 43 is provided with an end portion of the pipeline 50 to facilitate insertion of the pipe sleeve 10, the inner wall of the first ring groove 41 is fixedly provided with the first spring 47, the first spring 47 is in a compressed state, the first spring 47 in the compressed state is provided to exert an acting force on the limit plate 44, one end of the first spring 47 is provided with the limit plate 44, the limit plate 44 is in a circular ring shape, the limit plate 44 is provided to play a role in limiting movement of the insertion ring 45, and also play a role in exerting an acting force of the first spring 47 on the limit ring 45, the limiting plate 44 is provided with an inserting ring 45, one end of the inserting ring 45 penetrates through the third annular groove 43 and is provided with a waterproof gasket 46, and the second annular groove 42 is convenient to insert and seal under the action force of the first spring 47 through the inserting ring 45 and the waterproof gasket 46.
Referring to fig. 1, 2 and 3, the mounting mechanism 20 includes a receiving plate 25 for receiving and mounting the second spring 24 by providing the receiving plate 25, the receiving plate 25 is fixedly mounted on the pipeline 50, the receiving plate 25 is provided with the second spring 24, the second spring 24 is provided for exerting an acting force on the inserting rod 28, one end of the second spring 24 is provided with a first handle 21 for pulling the inserting rod 28 by providing the first handle 21, the first handle 21 is provided with the inserting rod 28 for inserting into the slot 23 of the fixing rod 29 by providing the inserting rod 28, the pipe sleeve 10 is provided with a third spring 27, the third spring 27 is in a stretching state for exerting an acting force on the fixing rod 29 by providing the third spring 27, one end of the third spring 27 is provided with the second handle 26, by providing the second handle 26, be convenient for spur dead lever 29, be equipped with dead lever 29 on the second handle 26, the one end of dead lever 29 runs through third annular 43, through being provided with dead lever 29, be convenient for peg graft to the fixed slot 22 on the pipe box 10 on, reach the purpose of fixing pipe box 10 to the pipeline 50 on in the third annular 43, seted up slot 23 on the dead lever 29, slot 23 is cylindrical logical groove, the grafting of the peg 28 of being convenient for is seted up to the setting of slot 23 on the pipe box 10.
The working principle of the scheme is as follows: when the pipeline uses, starter motor 32, motor 32 drive gear 33 rotates, and gear 33 meshes with ring gear 34 mutually, drives scraper blade 31 through ring gear 34 and rotates, and scraper blade 31 contacts with filter screen 37, will scrape the impurity of attaching to on filter screen 37, prevents that filter screen 37 from taking place to block up to impurity after stirring will fall into waste pipe 35 and collect, prevents that the pipeline from taking place blocking phenomenon.
When the pipelines 50 on two sides need to be disassembled, the first handle 21 is pulled, one end of the insertion rod 28 leaves the first slot 23 on the fixed rod 29, then the second handle 26 is pulled, the fixed rod 29 rises along with the second handle 26 until the second slot 23 on the fixed rod 29 and the insertion rod 28 are in the same horizontal plane, the first handle 21 is loosened, the insertion rod 28 is inserted into the second slot 23 under the action of the second spring 24, the fixed rod 29 is fixed, one end of the fixed rod 29 leaves the fixed slot 22 on the pipe sleeve 10, then the operations are repeated, the rest of the fixed rod 29 is pulled out, the pipeline 50 can be taken down from the pipe sleeve 10, and the operation is simple and convenient.
When the pipelines 50 on two sides need to be connected and fixed, the fixing grooves 22 on the pipe sleeve 10 are aligned to the fixing rods 29, then the fixing rods are inserted into the third annular grooves 43 on one side of the pipelines 50, then the first handles 21 are pulled, one ends of the inserting rods 28 leave the inserting grooves 23 on the fixing rods 29, the fixing rods 29 are inserted into the fixing grooves 22 on the pipe sleeve 10 under the action of the third springs 27, then the rest of the first handles 21 are pulled repeatedly, and the purpose of the pipeline sleeve 10 and the pipelines 50 is completed.
Claims (3)
1. The utility model provides a pipeline connecting device for water conservancy water and electricity construction, is including setting up pipe box (10) between pipeline (50), its characterized in that: be equipped with edulcoration mechanism (30) in pipe box (10), the junction of pipe box (10) and pipeline (50) is equipped with installation mechanism (20) and sealing mechanism (40), edulcoration mechanism (30) include motor (32), install in pipe box (10) the outside motor (32), the pivot end of motor (32) penetrates in pipe box (10) and is equipped with gear (33), the inner wall of pipe box (10) rotates and is connected with ring gear (34), ring gear (34) and gear (33) mesh mutually, the inner wall of ring gear (34) is equipped with scraper blade (31), the inner wall of pipe box (10) is equipped with framework (36), the inner wall of framework (36) is equipped with filter screen (37), the bottom of pipe box (10) is equipped with waste pipe (35), be equipped with the valve on waste pipe (35).
2. The pipe connecting device for water conservancy and hydropower construction according to claim 1, wherein: sealing mechanism (40) include first annular (41), second annular (42) and third annular (43), first annular (41) are seted up in pipeline (50), the both sides in pipe box (10) are seted up in second annular (42), the tip of pipeline (50) is seted up in third annular (43), the inner wall fixed mounting of first annular (41) has first spring (47), the one end of first spring (47) is equipped with limiting plate (44), be equipped with on limiting plate (44) and peg graft ring (45), the one end of peg graft ring (45) runs through third annular (43) and is equipped with waterproof gasket (46).
3. The pipe connecting device for water conservancy and hydropower construction according to claim 1, wherein: installation mechanism (20) is including accepting board (25), accept board (25) fixed mounting on pipeline (50), be equipped with second spring (24) on accepting board (25), the one end of second spring (24) is equipped with the first in command (21), be equipped with peg graft pole (28) on the first in command (21), be equipped with third spring (27) on pipe box (10), the one end of third spring (27) is equipped with second in command (26), be equipped with dead lever (29) on second in command (26), third annular (43) are run through to the one end of dead lever (29), slot (23) have been seted up on dead lever (29), fixed slot (22) have been seted up on pipe box (10).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110365247.3A CN113175575A (en) | 2021-04-01 | 2021-04-01 | Pipeline connecting device for water conservancy and hydropower construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110365247.3A CN113175575A (en) | 2021-04-01 | 2021-04-01 | Pipeline connecting device for water conservancy and hydropower construction |
Publications (1)
Publication Number | Publication Date |
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CN113175575A true CN113175575A (en) | 2021-07-27 |
Family
ID=76922781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202110365247.3A Withdrawn CN113175575A (en) | 2021-04-01 | 2021-04-01 | Pipeline connecting device for water conservancy and hydropower construction |
Country Status (1)
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CN (1) | CN113175575A (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180043437A (en) * | 2016-10-19 | 2018-04-30 | 주식회사 이엠케이 | Metal strainer assembly for fluid filtration |
CN208845964U (en) * | 2018-06-07 | 2019-05-10 | 黄世国 | A kind of water pipeline for hydraulic engineering |
CN208978612U (en) * | 2018-09-30 | 2019-06-14 | 赣州芯创电子科技有限公司 | A kind of fixation device for the vehicle-mounted energy storage device of electric car |
CN111750186A (en) * | 2020-07-28 | 2020-10-09 | 宁波爱优易联管件有限公司 | Connecting device with self-locking sealing structure based on pipeline connection |
CN112044160A (en) * | 2020-09-11 | 2020-12-08 | 邱晨霞 | Sewage impurity removal device |
CN212361205U (en) * | 2020-04-21 | 2021-01-15 | 浙江吕丰暖通科技有限公司 | Plastic-aluminum pipe connection structure |
CN212455955U (en) * | 2020-04-30 | 2021-02-02 | 胡鹏鑫 | Water conservancy pipeline with prevent blockking up function |
-
2021
- 2021-04-01 CN CN202110365247.3A patent/CN113175575A/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180043437A (en) * | 2016-10-19 | 2018-04-30 | 주식회사 이엠케이 | Metal strainer assembly for fluid filtration |
CN208845964U (en) * | 2018-06-07 | 2019-05-10 | 黄世国 | A kind of water pipeline for hydraulic engineering |
CN208978612U (en) * | 2018-09-30 | 2019-06-14 | 赣州芯创电子科技有限公司 | A kind of fixation device for the vehicle-mounted energy storage device of electric car |
CN212361205U (en) * | 2020-04-21 | 2021-01-15 | 浙江吕丰暖通科技有限公司 | Plastic-aluminum pipe connection structure |
CN212455955U (en) * | 2020-04-30 | 2021-02-02 | 胡鹏鑫 | Water conservancy pipeline with prevent blockking up function |
CN111750186A (en) * | 2020-07-28 | 2020-10-09 | 宁波爱优易联管件有限公司 | Connecting device with self-locking sealing structure based on pipeline connection |
CN112044160A (en) * | 2020-09-11 | 2020-12-08 | 邱晨霞 | Sewage impurity removal device |
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SE01 | Entry into force of request for substantive examination | ||
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WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210727 |
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WW01 | Invention patent application withdrawn after publication |