CN110306577B - Underground pipe gallery water supply and drainage equipment - Google Patents
Underground pipe gallery water supply and drainage equipment Download PDFInfo
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- CN110306577B CN110306577B CN201910592861.6A CN201910592861A CN110306577B CN 110306577 B CN110306577 B CN 110306577B CN 201910592861 A CN201910592861 A CN 201910592861A CN 110306577 B CN110306577 B CN 110306577B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- Hydrology & Water Resources (AREA)
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- Health & Medical Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Sewage (AREA)
Abstract
The invention relates to novel underground pipe gallery water supply and drainage equipment, which aims to solve the problem that the existing drainage equipment is easy to block and comprises an anti-blocking component arranged on a water pump, wherein a water outlet pipe is communicated and connected with the anti-blocking component through a connecting pipe; the invention has reasonable structural design, the equipment can not be blocked in the whole operation process, so that the equipment can work efficiently, the effect of saving time is achieved, meanwhile, the materials of all the components can be manufactured by common materials which are contacted daily, the effect of saving cost can be achieved, and the invention has higher commercial prospect.
Description
Technical Field
The invention relates to the technical field of drainage equipment, in particular to novel underground pipe gallery water supply and drainage equipment.
Background
The lower comprehensive pipe gallery is a public tunnel which is built under the city and is used for intensively laying municipal pipelines such as electric power, communication, broadcast television, water supply and the like, so that technicians can carry out rush repair, maintenance, expansion transformation and the like on various pipelines in the pipe gallery without repeatedly excavating road surfaces; meanwhile, the first-aid repair time of the pipeline is greatly shortened, and along with the development of the society, the application of the underground pipe gallery is increasingly extensive, so that the requirement on the water supply and drainage equipment of the underground pipe gallery is increasingly increased. Most underground pipe gallery's drainage equipment on the market does not possess complete anti-blocking facility, and the impurity that contains in the sewage during use causes the jam of inlet tube easily to influence the drainage efficiency that draws water of water pump, the sewage inboard can contain material such as plastics simultaneously, covers the pipe that absorbs water easily, and after the in-process equipment that uses blockked up, increased the cost of artificial repair, the use of the device of not being convenient for.
The patent application with publication number CN208328961U discloses a utility tunnel water supply and drainage equipment with prevent stifled function, this utility tunnel water supply and drainage equipment with prevent stifled function comprises following structure: the sewage treatment device comprises a water collecting tank, a water inlet pipe, a water pump, a water suction pipe, a fixing frame, an impeller, a connecting shaft, a lantern ring, a connecting rod, a sliding block, a fixed rod, a cam sliding block, a multi-groove cam, a filter screen, a scraper blade, a stop block, a drain pipe, a hoop, an a-sliding groove, a b-cam sliding groove and a c-connecting hole, wherein part of impurities contained in sewage can be filtered through the filter screen through the multi-groove cam, the fixed rod and the filter screen, and the fixed rod can be driven to reciprocate left and right through the rotation of the cam sliding block outside the multi-groove cam when the sewage treatment device is used for dredging the filter screen and preventing the filter screen from being blocked; the utility model discloses in, through impeller, dog and the scraper blade that sets up, can absorb water through the water pump, rivers pass the pipe that absorbs water, drive the impeller and rotate to make the connecting axle drive the scraper blade and rotate in the filter screen left side, utilize the scraper blade can effectually prevent that impurity from covering the filter screen, the circulation of the device of being convenient for has huge economic benefits and extensive market prospect, is worth using widely.
However, the underground pipe gallery water supply and drainage equipment with the anti-blocking function still has the following problems: in the process of anti-blocking, the anti-blocking structure is simple, and the anti-blocking effect still cannot be achieved; in this practicality simultaneously, the silt of jam is when handling, outside not discharging the header tank, and the condition that still can exist to plug up like this for a long time takes place, for we propose a novel underground pipe gallery water supply and drainage equipment.
Disclosure of Invention
(1) Technical problem to be solved
The invention aims to overcome the defects of the prior art, adapt to practical requirements, and provide novel underground pipe gallery water supply and drainage equipment to solve the problem that the existing drainage equipment is easy to block.
(2) Technical scheme
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:
a novel underground pipe gallery water supply and drainage device comprises a water collecting tank, a water outlet pipe, a water inlet pipe and a water pump, wherein the water outlet pipe is connected inside the water collecting tank through a first fixing part, the water inlet pipe is arranged on the side wall of the water collecting tank, the water pump is connected on the inner bottom plate of the water collecting tank, the novel underground pipe gallery water supply and drainage device also comprises an anti-blocking component arranged on the water pump, the water outlet pipe is communicated and connected with the anti-blocking component through a connecting pipe, the anti-blocking component comprises an anti-blocking pipe and a connecting rod, one end of the anti-blocking pipe is connected with the water pump, the other end of the anti-blocking pipe extends out of the water collecting tank, the connecting rod is arranged in the anti-blocking pipe and is connected with the water pump through a rotating shaft, a propeller is arranged on the connecting rod, one end of the connecting rod, the upper end and the lower end of the annular rack are both connected with a movable rod, the movable rod is inserted on the anti-blocking pipe, the free end of the annular rack is hinged with a push rod through a hinge rod, the push rod is arranged on a fixed plate, the fixed plate is fixedly connected on the inner bottom wall of the anti-blocking pipe, the free end of the push rod is connected in the middle of a push plate, a supporting block connected with the other end of the push plate is in contact connection with a sealing plate, the side wall of the sealing plate is connected with an inner top plate of the anti-blocking pipe through a first spring, the upper end of the sealing plate is hinged on the inner top plate of the anti-blocking pipe, the lower end of the sealing plate is in a sealing groove formed in a bottom plate in the anti-blocking pipe in a sliding manner, a blocking assembly is further arranged between the water pump and the water inlet pipe and comprises a first rotating rod, the first rotating rod is, the meshing of first bevel gear's upper end has second bevel gear, and second bevel gear's upper end middle part is connected with the second dwang, the second dwang rotates through the second mounting and connects on the outer panel of header tank, and the upper end of second dwang extends to in the discharge tube, the second dwang is located one section of discharge tube and is equipped with a plurality of puddlers, the discharge tube link up the setting with the inlet tube, and the inner tube of inlet tube is provided with the filter.
Further, the propeller is arranged right below the connecting pipe.
Furthermore, be provided with the filter screen on the connecting rod, and the quantity of filter screen is provided with two, two the filter screen sets up about the screw symmetry.
Further, still be provided with the stirring claw on the connecting rod, the quantity setting of stirring claw is two at least, and is the heliciform and distributes.
Further, the anti-blocking pipe is of a rectangular structure.
Further, the push pedal is kept away from one side lower extreme of fixed plate and has been seted up the spout, and sliding connection has the slider in the spout, the slider passes through the second spring coupling on the roof of spout, and the lower extreme of slider is connected with the scraper, the scraper matches the setting with the seal groove.
Furthermore, the side plate at one end, close to the sliding groove, of the soil scraping plate is connected with an anti-blocking block, and the upper end of the anti-blocking block is of an arc-shaped structure.
Further, the filter plate matches the setting with the discharge tube.
(3) Has the advantages that:
1. this novel underground pipe gallery water supply and drainage equipment through having set up and prevented stifled subassembly, will prevent stifled pipe setting in the subassembly and prevent outside the header tank, can directly arrange silt outside the header tank like this to prevented the condition of follow-up jam from taking place, simultaneously prevent a plurality of subassemblies synergism in the subassembly, can reach the effect that prevents silt deposit, thereby reach and prevent stifled effect.
2. The invention has reasonable structural design, the equipment can not be blocked in the whole operation process, so that the equipment can work efficiently, and the effect of saving time is achieved.
3. The novel underground pipe gallery water supply and drainage equipment is additionally provided with the blocking component, so that once filtering can be performed before water enters the water collecting tank, the possibility of blocking inside the water collecting tank is reduced, the high-efficiency anti-blocking effect can be achieved through multi-step measures, and the novel underground pipe gallery water supply and drainage equipment has high practical value in practical application.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the anti-clogging assembly;
FIG. 3 is a schematic sectional view taken along line A-A;
FIG. 4 is an enlarged view of the structure;
FIG. 5 is a schematic view of a barrier assembly.
The reference numbers are as follows:
the water collecting tank comprises a water collecting tank 1, a water outlet pipe 2, a first fixing piece 3, a water inlet pipe 4, a water pump 5, an anti-blocking assembly 6, a connecting pipe 7, a blocking assembly 8, an anti-blocking pipe 61, a rotating shaft 62, a connecting rod 63, a filter screen 64, a propeller 65, a stirring claw 66, a missing gear 67, an annular rack 68, a moving rod 69, a hinge rod 610, a push rod 611, a fixing plate 612, a push plate 613, a resisting block 614, a sealing plate 615, a first spring 616, a sealing groove 617, a sliding groove 618, a sliding block 619, a second spring 620, a soil scraping plate 621, an anti-clamping block 622, a first rotating rod 81, a first bevel gear 82, a second bevel gear 83, a second rotating rod 84, a second fixing piece 85, a discharging pipe 86.
Detailed Description
The invention will be further illustrated with reference to the following figures 1 to 5 and examples:
a novel underground pipe gallery water supply and drainage device comprises a water collecting tank 1, a water outlet pipe 2, a water inlet pipe 4 and a water pump 5, wherein the water outlet pipe 2 is connected inside the water collecting tank 1 through a first fixing part 3, the water inlet pipe 4 is arranged on the side wall of the water collecting tank 1, the water pump 5 is connected on the inner bottom plate of the water collecting tank 1, the novel underground pipe gallery water supply and drainage device also comprises an anti-blocking component 6 arranged on the water pump 5, the water outlet pipe 2 is communicated with the anti-blocking component 6 through a connecting pipe 7, the anti-blocking component 6 comprises an anti-blocking pipe 61 and a connecting rod 63, one end of the anti-blocking pipe 61 is connected with the water pump 5, the other end of the anti-blocking pipe 61 extends out of the water collecting tank 1, the connecting rod 63 is arranged inside the anti-blocking pipe 61, the connecting rod 63 is connected with the water pump 5 through a rotating shaft 62, a propeller 65 is arranged on the connecting rod 63, a gear 67 is sleeved, the upper end and the lower end of the annular rack 68 are both connected with a movable rod 69, the movable rod 69 is inserted on the anti-blocking pipe 61, the free end of the annular rack 68 is hinged with a push rod 611 through a hinge rod 610, the push rod 611 is arranged on a fixed plate 612, the fixed plate 612 is fixedly connected on the inner bottom wall of the anti-blocking pipe 61, the free end of the push rod 611 is connected at the middle part of a push plate 613, a supporting block 614 connected with the other end of the push plate 613 is connected with a sealing plate 615 in an abutting mode, the side wall of the sealing plate 615 is connected with the inner top plate of the anti-blocking pipe 61 through a first spring 616, the upper end of the sealing plate 615 is hinged on the inner top plate of the anti-blocking pipe 61, the lower end of the sealing plate 615 is slidably connected in a sealing groove 617 formed in the inner bottom plate of the anti-blocking pipe 61, the novel underground pipe gallery water supply and drainage equipment is provided with the anti-blocking assembly 6, the, thereby the condition of follow-up jam has been prevented from taking place, prevent a plurality of subassemblies synergism in stifled subassembly 6 simultaneously, can reach the effect that prevents the silt deposit, thereby reach and prevent stifled effect, in the actual work, water pump 5's work can be through connecting rod 63 area lack the gear 67 and rotate, lack the rotation of gear 67 can take annular rack 68 to reciprocate, the motion of annular rack 68 can be through hinge rod 610 and push rod 611 area push pedal 613 and remove about, thereby can play the pushing action, can withdraw from outside header tank 1 silt like this, the setting of closing plate 615, when working water pump 5, can pass through the promotion of push pedal 613, random motion, when water pump 5 is out of work, can play the sealed to preventing stifled pipe 61, thereby can prevent silt under the drive of rivers, get into in preventing stifled pipe 61.
In order to achieve a better anti-blocking effect, in the present embodiment, the connecting rod 63 is provided with two filter screens 64, and the two filter screens 64 are symmetrically arranged with respect to the propeller 65.
In order to prevent the sludge from depositing, in this embodiment, the connecting rod 63 is further provided with at least two stirring claws 66, the number of the stirring claws 66 is at least two, the stirring claws 66 are spirally distributed, the rotation of the connecting rod 63 drives the stirring claws 66 to rotate, the rotation of the stirring claws 66 drives the water flow to flow at an accelerated speed, and therefore the sludge deposition preventing effect can be achieved.
In order to achieve a better anti-blocking effect, in the present embodiment, the anti-blocking pipe 61 has a rectangular structure.
In order to prevent the sludge from depositing in the sealing groove 617, in this embodiment, a sliding groove 618 is formed at a lower end of one side of the pushing plate 613, which is far away from the fixing plate 612, a sliding block 619 is slidably connected in the sliding groove 618, the sliding block 619 is connected to a top wall of the sliding groove 618 through a second spring 620, a soil scraping plate 621 is connected to a lower end of the sliding block 619, the soil scraping plate 621 and the sealing groove 617 are arranged in a matching manner, in practical work, when the pushing plate 613 moves to above the sealing groove 617, the soil scraping plate 621 loses contact force, so that the pushing plate 620 moves downward under the pushing of the second spring 620 and enters the sealing groove 617, and along with the movement of the pushing plate 613, the soil.
In order to prevent the occurrence of the jamming, in this embodiment, an anti-jamming block 622 is connected to a side plate of the soil scraping plate 621 close to the sliding groove 618, and an upper end of the anti-jamming block 622 is configured to be a circular arc-shaped structure.
In order to achieve a better anti-blocking effect, in the embodiment, the blocking assembly 8 is further arranged between the water pump 5 and the water inlet pipe 4, and the blocking assembly 8 is further additionally arranged on the novel underground pipe gallery water supply and drainage device, so that a filtering effect can be performed once before water enters the water collecting tank 1, and the possibility of blocking inside the water collecting tank 1 is reduced.
In this embodiment, the blocking assembly 8 includes a first rotating rod 81, the first rotating rod 81 is connected to the rotating shaft of the water pump 5, the free end of the first rotating rod 81 extends out of the water collecting tank 1 and is connected to a first bevel gear 82, the upper end of the first bevel gear 82 is engaged with a second bevel gear 83, the middle part of the upper end of the second bevel gear 83 is connected to a second rotating rod 84, the second rotating rod 84 is rotatably connected to the outer side plate of the water collecting tank 1 through a second fixing member 85, the upper end of the second rotating rod 84 extends into a discharging pipe 86, a plurality of stirring rods 87 are disposed on a section of the second rotating rod 84 located in the discharging pipe 86, the discharging pipe 86 is communicated with the water inlet pipe 4, a filtering plate 88 is disposed on the inner pipe of the water inlet pipe 4, the filtering plate 88 is disposed to play a filtering role, when the water pump 5 works, the second rotating rod 84 is driven to rotate through the first rotating rod, the rotation of the second rotating rod 84 drives the stirring rod 87 to rotate, and the sludge deposited in the discharge pipe 86 can be taken out through the rotation of the stirring rod 87, so that the anti-blocking effect is achieved.
In this embodiment, the filter plates 88 are disposed to match the discharge pipe 86, thereby preventing sludge from being deposited in the inlet pipe 4.
The invention has the beneficial effects that:
this novel underground pipe gallery water supply and drainage equipment through having set up stifled subassembly 6, will prevent stifled pipe 61 in stifled subassembly 6 and set up outside header tank 1, can directly arrange silt outside header tank 1 like this to prevented the condition emergence of follow-up jam, prevented a plurality of subassemblies synergism in the stifled subassembly 6 simultaneously, can reach the effect that prevents the silt deposit, thereby reach and prevent stifled effect.
The invention has reasonable structural design, the equipment can not be blocked in the whole operation process, so that the equipment can work efficiently, and the effect of saving time is achieved.
This novel underground pipe gallery water supply and drainage equipment has still add and has blockked subassembly 8, can carry out once filtering action like this before water gets into header tank 1 to reduce the possibility of blockking up in header tank 1 is inside, and in the invention, can reach the high-efficient effect of preventing stifled through the multistep measure, in practical application, have very high practical value.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides an underground pipe gallery water supply and drainage equipment, includes header tank (1), outlet pipe (2), inlet tube (4) and water pump (5), outlet pipe (2) are connected in the inside of header tank (1) through first mounting (3), inlet tube (4) set up on the lateral wall of header tank (1), water pump (5) are connected on the interior bottom plate of header tank (1), its characterized in that still includes anti-blocking assembly (6) that sets up on water pump (5), outlet pipe (2) are through-connected with anti-blocking assembly (6) through connecting pipe (7), anti-blocking assembly (6) are including anti-blocking pipe (61) and connecting rod (63), anti-blocking pipe (61) one end is connected with water pump (5), and the other end of anti-blocking pipe (61) extends to outside header tank (1), connecting rod (63) set up in anti-blocking pipe (61), the connecting rod (63) is connected with the water pump (5) through a rotating shaft (62), a propeller (65) is arranged on the connecting rod (63), one end, far away from the water pump (5), of the connecting rod (63) is sleeved with a gear lacking wheel (67), the gear lacking wheel (67) is arranged in an annular rack (68) and is alternately meshed with two groups of parallel teeth in the annular rack (68), the upper end and the lower end of the annular rack (68) are both connected with a moving rod (69), the moving rod (69) is inserted in the anti-blocking pipe (61), the free end of the annular rack (68) is hinged with a push rod (611) through a hinge rod (610), the push rod (611) is arranged on a fixing plate (612), the fixing plate (612) is fixedly connected on the inner bottom wall of the anti-blocking pipe (61), the free end of the push rod (611) is connected to the middle of a push plate (613), and a butting block (614) connected to the other end of the push plate (613) is connected with, the side wall of the sealing plate (615) is connected with an inner top plate of the anti-blocking pipe (61) through a first spring (616), the upper end of the sealing plate (615) is hinged to the inner top plate of the anti-blocking pipe (61), the lower end of the sealing plate (615) is connected in a sealing groove (617) formed in the inner bottom plate of the anti-blocking pipe (61) in a sliding manner, a blocking assembly (8) is further arranged between the water pump (5) and the water inlet pipe (4), the blocking assembly (8) comprises a first rotating rod (81), the first rotating rod (81) is connected with a rotating shaft on the water pump (5), the free end of the first rotating rod (81) extends out of the water collecting tank (1) and is connected with a first bevel gear (82), the upper end of the first bevel gear (82) is meshed with a second bevel gear (83), and the middle part of the upper end of the second bevel gear (83) is connected with, second dwang (84) are rotated through second mounting (85) and are connected on the outer panel of header tank (1), and in the upper end of second dwang (84) extended to discharge tube (86), second dwang (84) are located one section of discharge tube (86) and are equipped with a plurality of puddlers (87), discharge tube (86) link up the setting with inlet tube (4), and the inner tube of inlet tube (4) is provided with filter (88).
2. The underground pipe gallery water supply and drainage apparatus of claim 1, wherein: the propeller (65) is arranged right below the connecting pipe (7).
3. The underground pipe gallery water supply and drainage apparatus of claim 1, wherein: be provided with filter screen (64) on connecting rod (63), and the quantity of filter screen (64) is provided with two, two filter screen (64) are around screw (65) symmetry setting.
4. The underground pipe gallery water supply and drainage apparatus of claim 1, wherein: still be provided with stirring claw (66) on connecting rod (63), the quantity setting of stirring claw (66) is two at least, and is the heliciform and distributes.
5. The underground pipe gallery water supply and drainage apparatus of claim 1, wherein: the anti-blocking pipe (61) is of a rectangular structure.
6. The underground pipe gallery water supply and drainage apparatus of claim 1, wherein: spout (618) have been seted up to one side lower extreme that fixed plate (612) was kept away from in push pedal (613), and spout (618) sliding connection has slider (619), slider (619) are connected on the roof of spout (618) through second spring (620), and the lower extreme of slider (619) is connected with scraper blade (621), scraper blade (621) and seal groove (617) match the setting.
7. The underground pipe gallery water supply and drainage apparatus of claim 6, wherein: the soil scraping plate (621) is connected with an anti-blocking block (622) on a side plate at one end close to the sliding groove (618), and the upper end of the anti-blocking block (622) is arranged to be of an arc-shaped structure.
8. The underground pipe gallery water supply and drainage apparatus of claim 1, wherein: the filter plates (88) are matched with the discharge pipe (86).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910592861.6A CN110306577B (en) | 2019-07-03 | 2019-07-03 | Underground pipe gallery water supply and drainage equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910592861.6A CN110306577B (en) | 2019-07-03 | 2019-07-03 | Underground pipe gallery water supply and drainage equipment |
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| CN110306577A CN110306577A (en) | 2019-10-08 |
| CN110306577B true CN110306577B (en) | 2021-02-02 |
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| CN201910592861.6A Active CN110306577B (en) | 2019-07-03 | 2019-07-03 | Underground pipe gallery water supply and drainage equipment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111705834B (en) * | 2020-06-19 | 2021-09-28 | 诸葛磊 | Underground pipe profile water supply and drainage device |
| CN111771499B (en) * | 2020-07-03 | 2021-12-28 | 中天水土治理科技(山东)股份有限公司 | Wisdom is thing networking liquid manure all-in-one for agricultural |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677214A (en) * | 2016-12-13 | 2017-05-17 | 南京联众建设工程技术有限公司 | Underground comprehensive pipe rack with steel structure water collecting pits |
| CN207760879U (en) * | 2018-01-05 | 2018-08-24 | 河南省建设工程施工图审查中心有限公司 | A kind of multifunctional comprehensive underground pipe gallery |
| CN207998861U (en) * | 2018-01-31 | 2018-10-23 | 西安交通大学 | A kind of prefabricated assembled tube-in-tube waterproof pipe gallery |
| CN108086386A (en) * | 2018-02-20 | 2018-05-29 | 南京埃塔斯智能科技有限公司 | A kind of wisdom piping lane maintained equipment with water removal and dredging |
| CN208328961U (en) * | 2018-05-15 | 2019-01-04 | 天津交通职业学院 | A kind of underground pipe gallery plumbing equipment with choke preventing function |
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Effective date of registration: 20210113 Address after: 325300 area B, 7th floor, headquarters economic building, 152 Chengdong Avenue, Dagao Town, Wencheng County, Wenzhou City, Zhejiang Province Applicant after: ZHEJIANG MINGRUN MUNICIPAL GARDEN Co.,Ltd. Address before: 230000 building 137, shigu Shuian company, Taohua Industrial Park, economic development zone, Hefei City, Anhui Province Applicant before: HEFEI TIANWO ENERGY TECHNOLOGY Co.,Ltd. |
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Address after: 325300 area B, 7th floor, headquarters economic building, 152 Chengdong Avenue, Dagao Town, Wencheng County, Wenzhou City, Zhejiang Province Patentee after: Zhejiang Mingrun Engineering Construction Co.,Ltd. Address before: 325300 area B, 7th floor, headquarters economic building, 152 Chengdong Avenue, Dagao Town, Wencheng County, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG MINGRUN MUNICIPAL GARDEN Co.,Ltd. |
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