CN214989508U - Arrange can promote pump-washing pipeline rinse-system in high-rise elevator well - Google Patents
Arrange can promote pump-washing pipeline rinse-system in high-rise elevator well Download PDFInfo
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- CN214989508U CN214989508U CN202120742864.6U CN202120742864U CN214989508U CN 214989508 U CN214989508 U CN 214989508U CN 202120742864 U CN202120742864 U CN 202120742864U CN 214989508 U CN214989508 U CN 214989508U
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Abstract
The utility model provides an arrange pump washing pipeline rinse-system that can promote in high-rise elevator well, lift platform including regularization elevator well, regularization elevator well handling frame, upper portion movable pipeline subassembly, lower part fixed drainage pipe and the tertiary sedimentation tank of regularization, regularization elevator well handling frame sets up on regularization elevator well lift platform, the tertiary sedimentation tank of regularization sets up in the elevartor shaft bottom, the fixed drainage pipe lower extreme of lower part stretches into in the tertiary sedimentation tank of regularization, upper portion movable pipeline subassembly upper end is passed regularization elevator well lifting platform and fixed connection on regularization elevator well handling frame, the lower part of upper portion movable pipeline subassembly stretches into in the upper end of the fixed drainage pipe of lower part. The utility model is simple in operation, solved and washed the pump line and promote the construction difficult problem that washes, in high-rise or super high-rise structure construction, the safety and stability can have enough to meet the need the use, washes recoverable waste water ground dust fall etc. through the filtration of sedimentation tank, has green's meaning.
Description
Technical Field
The utility model belongs to the technical field of the construction, concretely relates to arrange pump washing pipeline rinse-system that can promote in high-rise elevator well.
Background
High-rise or super high-rise residential building structural concrete is generally poured by a distributing machine, and the distributing machine is usually a hydraulic type, a common plate surface support, a lower layer support type or a construction platform integrated by a building machine.
The beginning of the main structure concrete pouring requires washing the pump pipe with water and wetting the pump pipe with pump-wetting mortar. After concrete pouring is finished, the distributing machine needs to be washed clean, and collection and drainage of pump wetting mortar, pump washing water and the like are difficult to construct.
The traditional discharge modes include several modes, one mode is that the waste materials are directly discharged into the elevator shaft without an organization, and then the waste materials of the elevator shaft are manually cleaned; secondly, manufacturing a hopper, discharging the waste materials and the waste water to the hopper, and finally lifting the hopper away and cleaning; thirdly, a PVC pipe is arranged at the opening of the floor for discharging, and the technical problem existing in the discharging through the pipeline is how to lift the drainage pipeline together with the construction progress.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide one kind and arrange the pump washing pipeline rinse-system that can promote in the high-rise elevator well, this system promotes conveniently, and the installation is simple, and the cost is lower, can collect waste material and the pump washing water in the concrete pump pipe and recycle, realizes green's target.
In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an arrange pump washing pipeline rinse-system that can promote in high-rise elevator well, lift platform including regularization elevator well, regularization elevator well handling frame, upper portion movable pipeline subassembly, lower part fixed drainage pipe and the tertiary sedimentation tank of regularization, regularization elevator well handling frame sets up on regularization elevator well lift platform, the tertiary sedimentation tank of regularization sets up in the elevartor shaft bottom, the fixed drainage pipe lower extreme of lower part stretches into in the tertiary sedimentation tank of regularization, upper portion movable pipeline subassembly upper end is passed regularization elevator well lifting platform and fixed connection on regularization elevator well handling frame, the lower part of upper portion movable pipeline subassembly stretches into in the upper end of the fixed drainage pipe of lower part.
The whole of the shaped elevator shaft lifting platform is of a right-angled triangular frame structure.
The shaped elevator shaft operating frame comprises four upright posts which are vertically arranged, the vertical projection of the four upright posts is positioned on four vertexes of a square, any two adjacent upright posts are connected through a transverse stay bar and an inclined stay bar, the lower ends of the four upright posts are fixedly connected on a shaped elevator shaft lifting platform, the upper ends of the four upright posts are horizontally provided with a rectangular frame, two longitudinal beams are arranged in the rectangular frame along the front-back direction, two cross beams are arranged in the rectangular frame along the left-right direction, nine through square holes are formed among the rectangular frame, the two longitudinal beams and the two cross beams, a ladder stand is vertically arranged below one square hole at one corner of the rectangular frame, one upright post of the ladder stand is one of the upright posts, the other upright post of the ladder stand is connected with the transverse stay bar and the inclined stay bar which are adjacent to one side, one square hole at the other corner of the rectangular frame is connected with a funnel which is in a rectangular pyramid cylinder structure with a big top and a small bottom, the lower end of the funnel is connected with the upper end of the upper movable pipeline assembly, and reinforcing steel bar protection supporting net sheets for shielding seven other square holes are paved on the rectangular frame, the two longitudinal beams and the two cross beams.
The upper portion movable pipeline subassembly includes the quarter butt, bellows and slot type reducing pipe, and the quarter butt is connected with end opening under the funnel, and the quarter butt lower extreme is connected with the end opening of slot type reducing pipe, and the end opening of slot type reducing pipe has the slot ring flange through slot clamp connection, and the slot ring flange is connected with PE flange cover 19 through bolt assembly, bellows upper end and 19 sub-unit connections in the PE flange cover, and the bellows lower extreme stretches into in the upper end of the fixed drainage pipe in lower part.
A rectangular turning plate is rotatably arranged around the rectangular frame respectively and connected with the rectangular frame through a hinge, and supporting angle steel is arranged at the bottom of the turning plate; when the upper surface of the turning plate is level with the top of the rectangular frame, the inner end of the supporting angle steel is in top pressing fit with the outer side edge of the rectangular frame.
Adopt above-mentioned technical scheme, the utility model discloses in the function of each part do:
1. the design elevator shaft lifting platform is fixed in the elevator shaft on the (N-1) th floor (N is a natural number, the Nth floor is a floor under construction), and used as a supporting platform in the elevator shaft and lifted upwards layer by layer along with the construction progress of a floor structure.
2. The lower end of the regularization elevator shaft operating frame is supported on a regularization elevator shaft lifting platform and located on the Nth layer, and the regularization elevator shaft operating frame is used for providing a safe operating surface for an elevator shaft template installer, a steel reinforcement worker and concrete. The stand adopts the square tube, and horizontal brace and diagonal brace adopt the angle steel, and the square tube forms the skeleton with the angle steel welding, hangs to put on stereotyped elevator shaft lift platform, and the workman's ligature reinforcing bar, erection template and the concreting of being convenient for provide operation platform for the operation workman. Regularization elevator well handling frame height equals standard layer height and adds 600mm, regularization elevator well handling frame length and width equal elevator well net width subtract 600mm, stand that four square tube were made is placed on the main joist of regularization elevator well lift platform, it has the cat ladder to weld just to elevator well gate one side on the regularization elevator well handling frame, the workman accesss to on the rectangular frame of regularization elevator well handling frame upper end through the cat ladder, rectangular frame, nine square holes are cut apart into to two longerons and two crossbeams, just do not set up reinforcing bar protection support net piece to the square hole of cat ladder top, just also do not set up reinforcing bar protection support net piece to a square hole in funnel top, lay the reinforcing bar protection support net piece that the workman stood the effect on seven remaining square holes. Hinge welding all around on the rectangular frame of regularization elevator well handling frame upper end, hinge connection has the rotatory board that turns over, turns over the board and can turn over outside upset horizontal condition elevator well wall body contact all around to this seals closely with the peripheral space of regularization elevator well handling frame and the elevartor shaft wall of a well, guarantees operation workman's construction safety.
The funnel lower part is welded with the rectangular frame as an organic whole through the angle steel, and the port welds firmly with the short steel tube upper end under the funnel, and upper portion movable pipeline subassembly upper end just is connected as an organic wholely with stereotyped elevator shaft way handling frame like this, together upwards promotes.
3. The upper movable pipeline component pipeline mainly functions to realize the conversion connection among pipelines made of different materials and having different pipe diameters. The reason that the upper end adopts the short steel pipe is because the higher impact force that can prevent the concrete of intensity of steel pipe causes the pipeline to destroy to the short steel pipe can be welded to regularization elevator well handling frame, and the bellows is adopted to the lower part because the bellows has certain flexibility and the diameter is less than the fixed drainage pipe in lower part, can stretch into the fixed drainage pipe in lower part below, makes things convenient for the bellows to move up in the fixed drainage pipe in lower part in the lifting process. The upper end of the short steel pipe is connected with the lower port of the funnel, and the lower end of the short steel pipe is connected with the upper end (thicker end) of the groove type reducing pipe. The lower end of the groove type reducing pipe is connected with the groove clamp. The lower end of the groove hoop is connected with a groove flange, and the groove flange is used for realizing the conversion connection of the PE flange sleeve 19. The lower end of the PE flange sleeve 19 is connected with the corrugated pipe.
4. The fixed drainage pipe in lower part adopts many galvanized steel pipes welding to form, and single galvanized steel pipe length equals the floor height of elevartor shaft, and along with the ascending lift one deck that makes progress of construction, just upwards welds a galvanized steel pipe, and the galvanized steel pipe and the elevartor shaft wall of each layer adopt angle steel support fixed to it is firm with M12 expansion bolts fixed. And after the lower fixed drainage pipeline is communicated with the elevator shaft at the first floor, the outlet part at the lower end of the lower fixed drainage pipeline is discharged into a sizing three-stage sedimentation tank arranged at the first floor, and the pump washing water is discharged to the outside after being filtered by three-stage sedimentation.
5. The utility model discloses a concrete construction operation process does: after the completion of the pouring of the concrete of the Nth layer of elevator shaft, the vertical template is dismantled, the wall column reinforcement and the vertical template installation of the (N + 1) th layer of construction are started, after the vertical template installation is completed, the steel wire rope firstly penetrates through the lifting rings welded at the tops of the upright posts of the regularized elevator shaft operating frames, the regularized elevator shaft operating frames are temporarily lifted to the structural plate surface through the tower crane, then the steel wire rope is penetrated through the tower crane to lift the regularized elevator shaft lifting platform to the Nth layer, then the regularized elevator shaft operating frames are lifted to the upside of the regularized elevator shaft lifting platform to be fixed firmly, the regularized elevator shaft operating frames are located at the (N + 1) th layer at the moment, then the lower part fixing drainage pipe of the Nth layer of elevator shaft is installed, and finally the corrugated pipe is stretched into the lower part fixing drainage pipe of the Nth layer. After the concrete spreader finishes the concrete pouring operation, the spreader hose faces the upper port of the funnel, all the residual pump washing water and waste materials are poured into the funnel and are discharged into a sizing three-stage sedimentation tank of a front chamber of the first elevator shaft layer by layer along an upper movable pipeline assembly and a lower fixed drainage pipeline, and the sedimentation tank is provided with a discharge port which can discharge or recycle the waste water after sedimentation and filtration.
To sum up, the utility model is simple in operation, solved and washed the pump line and promote the construction difficult problem that washes. Through the conversion of short steel pipe and bellows, the bellows inserts in the fixed drainage pipe of lower part again, divide into two parts with whole, breaks off from top to bottom, and it is convenient to peg graft each other, does not influence each other. This system popularization nature is strong, can be used to in high-rise or super high-rise structure construction, and its safety and stability can have enough to meet the need the use, and the filtration through the sedimentation tank will wash the stone in the pump line and filter and finish to recoverable waste water washes ground dust fall etc. has green's meaning. The utility model discloses the practicality is strong, low in cost, and all materials all can drop into once to turn to a plurality of monomers or tower and use, have fine economic benefits. The utility model provides an innovation and simple promotion mode with the help of elevator well operation platform's promotion, has realized that this system keeps unanimous purpose with the construction progress, has fine popularization effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the modular elevator shaft lift platform of FIG. 1;
fig. 3 is an enlarged view of the stylized elevator hoistway handling frame of fig. 1;
FIG. 4 is an enlarged view of the upper movable conduit assembly of FIG. 1;
fig. 5 is an exploded view of the components of fig. 4.
Detailed Description
As shown in fig. 1-5, the utility model discloses a arrange pump washing pipeline rinse-system that can promote in high-rise elevator well, including regularization elevator well lift platform 1, regularization elevator well handling frame 2, upper portion movable pipeline subassembly 3, lower part fixed drainage pipe 4 and regularization tertiary sedimentation tank 5, regularization elevator well handling frame 2 sets up on regularization elevator well lift platform 1, regularization tertiary sedimentation tank 5 sets up in the elevartor shaft bottom, the fixed drainage pipe 4 lower extreme of lower part stretches into in the regularization tertiary sedimentation tank 5, regularization elevator well lift platform 1 and fixed connection are passed to upper portion movable pipeline subassembly 3 upper end on regularization elevator well handling frame 2, the lower part of upper portion movable pipeline subassembly 3 stretches into in the upper end of the fixed drainage pipe 4 of lower part.
The whole of the shaped elevator shaft lifting platform 1 is of a right-angled triangular frame structure.
The regularization elevator well handling frame 2 includes four stands 6 that set up perpendicularly, the vertical projection of four stands 6 is located four summits of square, all connect through spreader bar 7 and diagonal brace 8 between two arbitrary adjacent stands 6, four stand 6 lower extreme fixed connection are on regularization elevator well hoisting platform 1, four stand 6 upper end levels are equipped with rectangular frame 9, be equipped with two longerons 10 along the fore-and-aft direction in the rectangular frame 9, be equipped with two crossbeams 11 along the left-and-right direction in the rectangular frame 9, form nine through square holes from top to bottom between two longerons 10 and two crossbeams 11, a square hole below one of rectangular frame 9 an angle department is vertical to be equipped with a cat ladder 12, a ladder of cat ladder 12 adopts one of them stand 6, another cat ladder 12's another ladder is connected with adjacent one side's spreader bar 7 and diagonal brace 8, a square hole of another angle department of rectangular frame 9 is connected with a funnel that is four pyramid section of thick bamboo structures big end to end (picture) Not shown), the lower end opening of the funnel is connected with the upper end of the upper movable pipeline component 3, and reinforcing steel bar protection supporting net pieces 13 for shielding seven other square holes are paved on the rectangular frame 9, the two longitudinal beams 10 and the two cross beams 11.
Upper portion activity pipeline assembly 3 includes short steel pipe 14, bellows 15 and slot type reducing pipe 16, the 14 upper ends of short steel pipe are connected with the end opening under the funnel, the 14 lower extremes of short steel pipe are connected with the end opening of slot type reducing pipe 16, the lower end opening of slot type reducing pipe 16 is connected with slot ring flange 18 through slot clamp 17, slot ring flange 18 is connected with PE flange cover 19 through bolt assembly, 15 upper ends of bellows and the 19 sub-unit connections of PE flange cover, 15 lower extremes of bellows stretch into in the upper end of the fixed drainage pipe 4 in lower part.
A rectangular turning plate 20 is rotatably arranged around the rectangular frame 9 respectively, the turning plate 20 is connected with the rectangular frame 9 through a hinge, and the bottom of the turning plate 20 is provided with a support angle steel 21; when the upper surface of the turning plate 20 is flush with the top of the rectangular frame 9, the inner end of the supporting angle steel 21 is in press fit with the outer side edge of the rectangular frame 9.
The utility model discloses the function effect and the whole working process of well each part do:
1. the design elevator shaft lifting platform 1 is fixed in an elevator shaft on the (N-1) th layer (N is a natural number, the Nth layer is a floor under construction), and used as a supporting platform in the elevator shaft and lifted upwards layer by layer along with the construction progress of a floor structure.
2. The lower end of the regularization elevator shaft operating frame 2 is supported on the regularization elevator shaft lifting platform 1 and is located on the Nth layer, and the function of the regularization elevator shaft operating frame 2 is to provide a safe operating surface for an elevator shaft template installer, a steel reinforcement worker and concrete. The stand 6 adopts the square tube, and the horizontal brace 7 and the diagonal brace 8 adopt the angle steel, and the square tube forms the skeleton with the angle steel welding, hangs to put on stereotyped elevator shaft lift platform 1, and the workman's ligature reinforcing bar, installation template and the concreting of being convenient for provide operation platform for the operation workman. The height of the regularization elevator well operation frame is equal to the height of a standard layer plus 600mm, the length and the width of the regularization elevator well operation frame are equal to the net width of an elevator well minus 600mm, stand columns 6 made of four square channels are placed on a main keel of a regularization elevator well lifting platform 1, a ladder stand 12 is welded on the regularization elevator well operation frame just facing one side of the elevator well, a worker leads to a rectangular frame 9 at the upper end of the regularization elevator well operation frame through the ladder stand 12, the rectangular frame 9, two longitudinal beams 10 and two cross beams 11 are divided into nine square holes, a reinforcing steel bar protection support net sheet 13 is not arranged just facing the square holes above the ladder stand 12, a reinforcing steel bar protection support net sheet 13 is not arranged just facing one square hole above a funnel, and a reinforcing steel bar protection support net sheet 13 for standing operation is laid on seven remaining square holes. Hinge welding all around on regularization elevator well handling frame upper end rectangular frame 9, hinge connection has rotatory board 20 that turns over, turns over board 20 and can turn over outside upset horizontal condition elevator well wall body contact all around to this will stereotype elevator well handling frame and the peripheral space of the elevartor shaft wall of a well and seal closely knit, guarantee operation workman's construction safety.
The lower part of the funnel is welded with the rectangular frame 9 into a whole through angle steel, the lower end of the funnel is firmly welded with the upper end of the short steel pipe 14, and thus the upper end of the upper movable pipeline component 3 is connected with the standardized elevator shaft operating frame into a whole and lifted upwards together.
3. The main function of the upper movable pipeline component 3 is to realize the conversion connection between pipelines of different materials and different pipe diameters. The reason why the short steel pipe 14 is used at the upper end is that the pipe can be prevented from being damaged by the impact force of concrete due to the high strength of the steel pipe, the short steel pipe 14 can be welded to the shaped elevator shaft operating frame 2, and the bellows 15 is used at the lower end is that the bellows 15 has certain flexibility and the diameter is smaller than that of the lower fixed drainage pipeline 4, and can extend into the lower fixed drainage pipeline 4 below, so that the bellows 15 can move upwards in the lower fixed drainage pipeline 4 in the lifting process. The upper end of the short steel pipe 14 is connected with the lower port of the funnel, and the lower end of the short steel pipe 14 is connected with the upper end (thicker end) of the groove type reducing pipe 16. The lower end of the groove type reducing pipe 16 is connected with a groove clamp 17. The lower end of the groove clamp 17 is connected with a groove flange 18, and the groove flange 18 is used for realizing the conversion connection of the PE flange sleeve 19. The lower end of the PE flange sleeve 19 is connected with the corrugated pipe 15.
4. The fixed drainage pipe 4 in lower part adopts many galvanized steel pipes to weld and forms, and single galvanized steel pipe length equals the floor height of elevartor shaft, and along with the ascending lift one deck of construction, just upwards welds a galvanized steel pipe, and the galvanized steel pipe and the elevartor shaft wall of each layer adopt angle steel support fixed to it is firm with M12 expansion bolts fixed. After the lower fixed drainage pipeline 4 leads to the elevator shaft of the first floor, the outlet part at the lower end of the lower fixed drainage pipeline is discharged into a sizing three-level sedimentation tank 5 arranged on the first floor, and pump washing water is discharged to the outside after being filtered by three-level sedimentation.
5. The utility model discloses a concrete construction operation process does: after the completion of Nth floor elevator shaft concrete pouring, demolish vertical formwork, begin to construct wall post reinforcement and the vertical formwork installation on N +1 layer, after vertical formwork installation is accomplished, pass 2 stands of regularization elevator shaft handling frame 6 top welded rings with wire rope earlier, hang regularization elevator shaft handling frame 2 to the structure face temporarily through the tower crane, then wear the wire rope with the tower crane and will stereotype elevator shaft hoisting platform 1 to the Nth floor, it is fixed firm to hang regularization elevator shaft handling frame 2 to regularization elevator shaft hoisting platform 1 top after that, regularization elevator shaft handling frame 2 is located N +1 layer this moment, install the fixed 4 in lower part of Nth floor elevator shaft after that, stretch into bellows 15 in the fixed drainage pipe 4 in lower part on Nth floor at last. After the concrete spreader finishes the concrete pouring operation, the spreader hose faces the upper port of the funnel, all the residual pump washing water and waste materials are poured into the funnel and are discharged into a sizing three-stage sedimentation tank 5 of a front chamber of a first-layer elevator shaft layer by layer along an upper movable pipeline assembly 3 and a lower fixed drainage pipeline 4, and the sedimentation tank is provided with a discharge port which can discharge or recycle the waste water after sedimentation and filtration.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (5)
1. A pump-wash conduit flushing system arranged for lifting in a hoistway of a high rise elevator, characterized by: including regularization elevator well lift platform, regularization elevator well handling frame, upper portion activity pipeline subassembly, the fixed drainage pipe in lower part and the tertiary sedimentation tank of regularization, regularization elevator well handling frame sets up on regularization elevator well lift platform, the tertiary sedimentation tank of regularization sets up in the elevartor shaft bottom, the fixed drainage pipe lower extreme in lower part stretches into in the tertiary sedimentation tank of regularization, regularization elevator well lift platform and fixed connection are passed to upper portion activity pipeline subassembly upper end on regularization elevator well handling frame, the lower part of upper portion activity pipeline subassembly stretches into in the upper end of the fixed drainage pipe in lower part.
2. A liftable wash pump pipe flushing system arranged in a high-rise elevator hoistway according to claim 1, characterized in that: the whole of the shaped elevator shaft lifting platform is of a right-angled triangular frame structure.
3. A pump-washer conduit flushing system arranged in a high-rise elevator hoistway as claimed in claim 1 or 2, characterized in that: the shaped elevator shaft operating frame comprises four upright posts which are vertically arranged, the vertical projection of the four upright posts is positioned on four vertexes of a square, any two adjacent upright posts are connected through a transverse stay bar and an inclined stay bar, the lower ends of the four upright posts are fixedly connected on a shaped elevator shaft lifting platform, the upper ends of the four upright posts are horizontally provided with a rectangular frame, two longitudinal beams are arranged in the rectangular frame along the front-back direction, two cross beams are arranged in the rectangular frame along the left-right direction, nine through square holes are formed among the rectangular frame, the two longitudinal beams and the two cross beams, a ladder stand is vertically arranged below one square hole at one corner of the rectangular frame, one upright post of the ladder stand is one of the upright posts, the other upright post of the ladder stand is connected with the transverse stay bar and the inclined stay bar which are adjacent to one side, one square hole at the other corner of the rectangular frame is connected with a funnel which is in a rectangular pyramid cylinder structure with a big top and a small bottom, the lower end of the funnel is connected with the upper end of the upper movable pipeline assembly, and reinforcing steel bar protection supporting net sheets for shielding seven other square holes are paved on the rectangular frame, the two longitudinal beams and the two cross beams.
4. A liftable wash pump pipe flushing system arranged in a high-rise elevator hoistway according to claim 3, characterized in that: the upper portion movable pipeline subassembly includes the quarter butt, bellows and slot type reducing pipe, and the quarter butt is connected with end opening under the funnel, and the quarter butt lower extreme is connected with the end opening of slot type reducing pipe, and the end opening of slot type reducing pipe has the slot ring flange through slot clamp connection, and the slot ring flange is connected with PE flange cover 19 through bolt assembly, bellows upper end and 19 sub-unit connections in the PE flange cover, and the bellows lower extreme stretches into in the upper end of the fixed drainage pipe in lower part.
5. A liftable wash pump pipe flushing system arranged in a high-rise elevator hoistway according to claim 3, characterized in that: a rectangular turning plate is rotatably arranged around the rectangular frame respectively and connected with the rectangular frame through a hinge, and supporting angle steel is arranged at the bottom of the turning plate; when the upper surface of the turning plate is level with the top of the rectangular frame, the inner end of the supporting angle steel is in top pressing fit with the outer side edge of the rectangular frame.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120742864.6U CN214989508U (en) | 2021-04-13 | 2021-04-13 | Arrange can promote pump-washing pipeline rinse-system in high-rise elevator well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120742864.6U CN214989508U (en) | 2021-04-13 | 2021-04-13 | Arrange can promote pump-washing pipeline rinse-system in high-rise elevator well |
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| CN214989508U true CN214989508U (en) | 2021-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215344A (en) * | 2021-12-21 | 2022-03-22 | 上海建工四建集团有限公司 | Temporary fire-fighting pipe for integrally lifting formwork and construction method |
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2021
- 2021-04-13 CN CN202120742864.6U patent/CN214989508U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215344A (en) * | 2021-12-21 | 2022-03-22 | 上海建工四建集团有限公司 | Temporary fire-fighting pipe for integrally lifting formwork and construction method |
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