CN109442111A - Underwater concreting conduit docking structure - Google Patents
Underwater concreting conduit docking structure Download PDFInfo
- Publication number
- CN109442111A CN109442111A CN201811527491.XA CN201811527491A CN109442111A CN 109442111 A CN109442111 A CN 109442111A CN 201811527491 A CN201811527491 A CN 201811527491A CN 109442111 A CN109442111 A CN 109442111A
- Authority
- CN
- China
- Prior art keywords
- docking
- opposing
- slot
- sleeve
- butt section
- 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- Withdrawn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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
-
- 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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
-
- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The present invention relates to the technical fields of conduit docking structure, disclose underwater concreting conduit docking structure, including two opposing pipes, connection cutting and resilient sleeve, the end of opposing pipe has Butt Section, the end of Butt Section has docking end face, the butt end face docking of two opposing pipes；The appearance that the end of docking end face is deviateed in Butt Section faces outwardly projection connecting plate, and through slot is equipped in connecting plate, and connection cutting passes through the through slot of the connecting plate of two opposing pipes, fixes docking between two opposing pipes；Sleeve covers the periphery in the Butt Section of two opposing pipes, and at the docking of two opposing pipes of covering；The inner surface of sleeve bears against the outer surface of Butt Section, and connection cutting bears against the outer surface of sleeve；The application of sleeve and connecting plate can limit the flow range of concrete or mud well, avoid concrete or mud from attaching and condense on docking end face, guarantee the leakproofness of underwater concrete conduit docking structure, promote docking effect.
Description
Technical field
The invention patent relates to the technical fields of conduit docking structure, in particular to underwater concreting conduit
Docking structure.
Background technique
Underwater concreting technology is usually used in building cofferdam, concrete cut, pile foundation and submerged structure bottom
The engineerings such as portion's repairing.
Currently, the method for underwater concreting has very much, there are commonly tremie method, mud jacking and packed methods, wherein with
Tremie method is most widely used；Tremie method, as the term suggests it is exactly to be transmitted by conduit to concrete, when the distance for needing to transmit is super
Out when the length range of conduit, at this time just need to dock multiple conduits, to meet construction requirement.
In the prior art, underwater concrete conduit is attached by supravasal screw thread, but in actual operation, Chang Yin
It attaches and is condensed on screw thread for concrete or mud, mistake is easy when causing manually to tighten extremely, influences the disassembly and connection of conduit
Effect is unfavorable for the control of construction quality.
Summary of the invention
The purpose of the present invention is to provide underwater concreting conduit docking structures, it is intended to solve in the prior art, to mix
Solidifying native or mud is attached and is condensed on the screw thread of opposing pipe, is easy when causing manually to tighten wrong dead, conduit disassembly inconvenience
Problem.
The invention is realized in this way underwater concreting conduit docking structure, including two opposing pipes, connection are inserted
The sleeve of item and elasticity, the end of the opposing pipe have Butt Section, and the end of the Butt Section, which has, docks end face, and two
It docks in the butt end face of a opposing pipe；The appearance that the end of the docking end face is deviateed in the Butt Section faces outwardly projection
Connecting plate is equipped with through slot in the connecting plate, and the connection cutting passes through the through slot of the connecting plate of described two opposing pipes, will
It docks and fixes between two opposing pipes；The sleeve covers the periphery in the Butt Section of two opposing pipes, and covers
At the docking of two opposing pipes of lid；The inner surface of the sleeve bears against the outer surface of the Butt Section, the connection
Cutting bears against the outer surface of the sleeve.
Further, the docking end face of the opposing pipe is formed with step structure, the opposing pipe of two docking
Step structure misplace arrangement, when two opposing pipes dock, the step structure of two opposing pipes mutually blocks
Button.
Further, the inner surface of the sleeve is sticked flexible sealing ring, and the sealing ring is led around the docking
Around arrangement, the sealing ring has towards the face that compresses of the opposing pipe peripheral ring of pipe, it is described compress face and compress be covered on
At the docking of two opposing pipes.
Further, the face that compresses of the sealing ring is provided with multiple slot sticks, and the slot stick has towards described right
The slot opening of conduit is connect, and the slot stick arranges that multiple slot sticks are along right around the periphery of the opposing pipe
Connect the axially spaced-apart arrangement of conduit.
Further, the slot stick is in the small big shape of opening in bottom, the opening along the bottom of the slot stick to slot stick
Direction extends, and the width of the slot stick is gradually increased.
Further, the both ends of the inner surface of the sleeve are convexly equipped with respectively around the embedding of opposing pipe periphery arrangement
Enter ring, the outer surface of the Butt Section of two opposing pipes is equipped with insertion annular groove, and the embedded rings grooved ring is led around the docking
The periphery of pipe arranges that the embedded rings are embedded in the insertion annular groove；The insertion annular groove it is neighbour the connecting plate.
Further, the sleeve has been internally embedded multiple springs, and multiple ring springs are around the opposing pipe
Periphery arrangement, the spring are in preloading condition.
Further, the spring is respectively distributed to the over and under at the docking of two opposing pipes, along certainly
Outer and interior direction, the spring is towards being in tilted layout at the docking of two opposing pipes.
Further, the buttcover plate forms ring flat-plate shape around the peripheral ring of the Butt Section around arrangement；The buttcover plate
It is equipped with through-hole, the through-hole is in arc strip, is extended along the circular direction of the buttcover plate；One end tool of the connection cutting
There is docking end, the docking end is pressed on the buttcover plate, and the other end of the connection cutting passes through the buttcover plate,
With the linkage section extended to outside the buttcover plate, the periphery of the linkage section is equipped with card slot, and the card slot is along the docking
The circular direction of plate extends, and the linkage section of the connection cutting is connected with fixture block, the accommodating with upper end opening in the fixture block
The upper end opening of slot, top towards the accommodation groove of the two side walls of the fixture block is protruded, and two cards arranged in opposite directions are formed
Item has gap between two strips, and the linkage section of the connection cutting is placed in the accommodation groove, two strips
Be partly embedded in the card slot, and another part of the strip abuts the buttcover plate.
Further, there is gap, the strip between the Butt Section of the connection cutting and the bottom of the accommodation groove
One end and the side wall of fixture block connect, the other end of the strip is tilted towards the buttcover plate and is arranged.
Compared with prior art, underwater concreting conduit docking structure provided by the invention, by being arranged in docking
The Butt Section of catheter proximal end is docked, and then again covers sleeve in the outer surface of Butt Section, meanwhile, Butt Section outer surface also
It is provided with connecting plate, connecting plate is equipped with through slot and connection cutting, further applies to Butt Section by adjusting connection cutting and presses
Power provides one layer of guarantee, and soft and flexible sleeve to butt end face pressure be obtained tighter for the sealing of conduit
It is soft and there is elasticity, therefore even if thering is concrete or mud to condense in sleeve surface, also easily cleaning, in addition,
Since Butt Section is under the package of sleeve, the flow range of concrete or mud can be limited well, is avoided the occurrence of
Concrete or mud attach and condense in Butt Section and docks the situation on end face, to promote underwater concreting conduit
The leakproofness of docking structure, and easy cleaning and disassembly.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of underwater concreting conduit docking structure provided in an embodiment of the present invention；
Fig. 2 is the vertical view signal of the buttcover plate of underwater concreting conduit docking structure provided in an embodiment of the present invention
Figure；
Fig. 3 is the stereoscopic schematic diagram of the sleeve of underwater concreting conduit docking structure provided in an embodiment of the present invention；
Fig. 4 is the vertical view signal of the sealing ring of underwater concreting conduit docking structure provided in an embodiment of the present invention
Figure；
Fig. 5 is the connection cutting of underwater concreting conduit docking structure provided by the invention and cuing open for fixture block junction
Face schematic diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Realization of the invention is described in detail below in conjunction with specific embodiment.
The same or similar label correspond to the same or similar components in the attached drawing of the present embodiment；In description of the invention
In, it is to be understood that if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right" for based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore describe the use of positional relationship in attached drawing
Language only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term is understood as the case may be.
It is preferred embodiment provided by the invention referring to Fig.1 shown in -5.
Underwater concreting conduit docking structure provided by the invention can be used for conduit docking and pipeline docking.
Underwater concreting conduit docking structure, the set including two opposing pipes 15, connection cutting 10 and elasticity
Cylinder 11, the end of opposing pipe 15 have Butt Section 12, and the end of Butt Section 12 has docking end face 13, two opposing pipes 15
Docking end face 13 dock；The appearance that the end of docking end face 13 is deviateed in Butt Section 12 faces outwardly projection connecting plate 14, connecting plate
In 14 be equipped with through slot, connection cutting 10 pass through two opposing pipes 15 connecting plate 14 through slot, by two opposing pipes 15 it
Between dock fix；11 sets of the sleeve peripheries in the Butt Section of two opposing pipes 15 12, and cover pair of two opposing pipes 15
Meet place；The inner surface of sleeve 11 bears against the outer surface of Butt Section 12, and connection cutting 10 bears against the outer surface of sleeve 11.
The underwater concreting conduit docking structure of above-mentioned offer, by the Butt Section for being arranged in 15 front end of opposing pipe
12 are docked, then again by 11 sets of the sleeve outer surfaces in Butt Section 12, meanwhile, company is additionally provided in 12 outer surface of Butt Section
Fishplate bar 14, connecting plate 14 are equipped with through slot and connection cutting 10, further apply to Butt Section 12 by adjusting connection cutting 10
Pressure provides one layer of guarantee to press docking end face 13 tighter for the sealing of conduit, and soft and flexible
Sleeve 11 is soft and has elasticity, therefore even if having concrete or mud to condense in 11 surface of sleeve, also easily clear
Reason, in addition, the flowing model of concrete or mud can be limited well since Butt Section 12 is under the package of sleeve 11
It encloses, avoids the occurrence of concrete or mud attaches and condenses in Butt Section 12 and docks the situation on end face 13, to promote water
The leakproofness of lower concreting conduit docking structure, and easy cleaning and disassembly.
The docking end face 13 of opposing pipe 15 is formed with step structure 16, the step structure of the opposing pipe 15 of two docking
16 dislocation arrangements, when two opposing pipes 15 dock, the step structure 16 of two opposing pipes 15 is mutually buckled, in this way, logical
The buckle of step structure 16 is crossed, docking end face 13 can tightly be fit together, concrete or silt can be effectively prevented
It is docked into two in the gap between end face 13, to guarantee the compactness that butt end face paste is closed.
In addition, the inner surface of sleeve 11, which is sticked, sealing ring 17, sealing ring 17 has good elasticity, and sealing ring 17 is surround
The peripheral ring of opposing pipe 15 is around arrangement, and sealing ring 17, which has, compresses face towards conduit 15, and the face of compressing, which compresses, to be covered on
At the docking of two opposing pipes 15；During tremie is docked under water, the sleeve 11 with favorable elasticity
The outer surface of Butt Section 12 can be tightly wrapped in, while sleeve 11 has the advantages that good waterproof and dampproof, can effectively limit
Concrete or silt processed enter at docking, to realize to the double shield at docking.
The face that compresses of sealing ring 17 is provided with multiple slot sticks 30, and there is slot stick 30 groove towards conduit 15 to open
Mouthful, and slot stick 30 around opposing pipe 15 periphery arrange, multiple slot sticks 30 along opposing pipe 15 axially spaced-apart cloth
It sets, in this way, the top of slot stick 30 is also pressed on opposing pipe 15 when sealing ring 17 is when compressing face and compressing at docking,
And under the effect of the pressure, the shape of slot stick 30 can change with the shape of opposing pipe 15, in this way, to seal
Ring has relatively good moulding ability, even closer with being bonded for opposing pipe 15.
In the small big shape of opening in bottom, the opening direction along the bottom of slot stick 30 to slot stick 30 extends slot stick 30, recessed
The width of groove bar 30 is gradually increased, when the different slot stick 30 of width is fitted on opposing pipe 15, can will compress face with it is right
The space obstacle of the outer surface formation of conduit 15 is connect at the space of multiple independent closeds of different sizes, in this way, even if having part
The space that slot stick 30 obstructs is not close, nor affects on the whole sealing effect of sealing ring 17.
Furthermore the both ends of the inner surface of sleeve 11 are convexly equipped with embedded rings respectively, and embedded rings are around 15 periphery cloth of opposing pipe
It sets, the outer surface of the Butt Section 12 of two opposing pipes 15 is equipped with insertion annular groove, and embedded rings grooved ring is around the periphery of opposing pipe 15
Arrangement, embedded rings are embedded in insertion annular groove；Be embedded in annular groove it is neighbour connecting plate 14, when sleeve 11 is set in opposing pipe 15
When Butt Section 12, the embedded rings of 11 inner surface of sleeve setting are embedded into the insertion annular groove of 12 outer surface of Butt Section, thus by sleeve
11 both ends are firmly stuck on Butt Section 12, to limit the position of sleeve 11, guarantee the stability of sleeve 11.
Sleeve 11 has been internally embedded multiple springs, and multiple ring springs arrange that spring is in around the periphery of opposing pipe 15
Preloading condition, in this way, the both ends of spring are pressed on the inner surface of sleeve 11 and the outer surface of opposing pipe 15 respectively, sleeve 11 is more
Add and is less likely to occur to slide.
Spring is equipped at the docking of two opposing pipes 15, spring is respectively distributed to the over and under at docking,
In addition, spring is towards inclination arrangement at the docking of two opposing pipes 15, from upper and lower both direction pair along direction from outer to inner
Sleeve 11 is supported, and elastic force can be made to be evenly distributed, to guarantee situations such as sleeve 11 is not in inclination, dislocation.
In addition, the periphery of Butt Section 12 is surrounded with buttcover plate 18, buttcover plate 18 forms ring flat-plate shape；It is set on buttcover plate 18
There is through-hole 19, through-hole 19 is in arc strip, is extended along the circular direction of buttcover plate 18；The one end for connecting cutting 10 has butt end
Head, docking end are pressed on buttcover plate 18, and the other end of connection cutting 10 passes through buttcover plate 18, are had and are extended to buttcover plate 18
Outer linkage section, the periphery of linkage section are equipped with card slot, and card slot extends along the circular direction of buttcover plate 18, connect the company of cutting 10
It connects section and is connected with fixture block 20, the accommodation groove 22 with upper end opening in fixture block 20, the top direction of the two side walls 23 of fixture block 20
The upper end opening of accommodation groove 22 is protruded, and forms two strips 21 arranged in opposite directions, has gap between two strips 21, connection is inserted
The linkage section of item 10 is placed in accommodation groove 22, and two strips 21 are partly embedded in card slot, and another part of strip abuts
Buttcover plate 18, in this way, being arranged on Butt Section after the Butt Section of opposing pipe 15 12 is docked to one piece with sealing ring 17
Resilient sleeve 11, then, the buttcover plate 18 of the periphery of Butt Section 12 is under the fixation of connection cutting 10, further to Butt Section 12
It presses, provides double shield to dock the fitting of end face 13.
Connecting has gap between the Butt Section 12 of cutting 10 and the bottom of accommodation groove 22, one end of strip 21 and fixture block 20
Side wall 23 connect, the other end of strip 21 is tilted towards plate 18 and is arranged, in this way, the strip of the arrangement to stick up can compress
Onto connection cutting 10, and then the position of connection cutting is limited, further promotes the fixed effect of connection cutting 10.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. underwater concreting conduit docking structure, which is characterized in that including two opposing pipes, connection cutting and elasticity
Sleeve, the end of the opposing pipe has Butt Section, and the end of the Butt Section has docking end face, two docking
It docks in the butt end face of conduit；The appearance that the end of the docking end face is deviateed in the Butt Section faces outwardly projection connecting plate, institute
It states and is equipped with through slot in connecting plate, the connection cutting passes through the through slot of the connecting plate of described two opposing pipes, described in two
It docks and fixes between opposing pipe；The sleeve covers the periphery in the Butt Section of two opposing pipes, and covers two institutes
It states at the docking of opposing pipe；The inner surface of the sleeve bears against the outer surface of the Butt Section, and the connection cutting compresses
The outer surface of the sleeve.
2. underwater concreting conduit docking structure as described in claim 1, which is characterized in that pair of the opposing pipe
Contact surface is formed with step structure, and the step structure of the opposing pipe of two docking, which misplaces, to be arranged, when two docking
When conduit docks, the step structure of two opposing pipes is mutually buckled.
3. underwater concreting conduit docking structure as claimed in claim 2, which is characterized in that the inner surface of the sleeve
Be sticked flexible sealing ring, and the sealing ring surround the peripheral ring of the opposing pipe around arrangement, and the sealing ring has court
To the face that compresses of the opposing pipe, it is described compress face and compress be covered at the docking of two opposing pipes.
4. underwater concreting conduit docking structure as claimed in claim 3, which is characterized in that the sealing ring compresses
Face is provided with multiple slot sticks, and the slot stick has the slot opening towards the opposing pipe, and the slot stick is surround
The periphery of the opposing pipe arranges that multiple slot sticks are arranged along the axially spaced-apart of opposing pipe.
5. underwater concreting conduit docking structure as claimed in claim 4, which is characterized in that the slot stick is in bottom
The small big shape of opening, the opening direction along the bottom of the slot stick to slot stick extend, and the width of the slot stick is gradually increased.
6. the underwater concreting conduit docking structure as described in claim 1-5 any one, which is characterized in that the set
The both ends of the inner surface of cylinder are convexly equipped with the embedded rings around opposing pipe periphery arrangement respectively, two opposing pipes
The outer surface of Butt Section is equipped with insertion annular groove, and the embedded rings grooved ring is arranged around the periphery of the opposing pipe, the embedded rings
It is embedded in the insertion annular groove；The insertion annular groove it is neighbour the connecting plate.
7. the underwater concreting conduit docking structure as described in claim 1-5 any one, which is characterized in that the set
Cylinder has been internally embedded multiple springs, and multiple ring springs are arranged around the periphery of the opposing pipe, and the spring is in pre-
Pressure condition.
8. underwater concreting conduit docking structure as claimed in claim 7, which is characterized in that the spring is distributed respectively
Over and under at the docking of two opposing pipes, along direction from outer to inner, the spring is towards described in two
It is in tilted layout at the docking of opposing pipe.
9. the underwater concreting conduit docking structure as described in claim 1-5 any one, which is characterized in that described right
Fishplate bar surround the peripheral ring of the Butt Section around arrangement, forms ring flat-plate shape；The buttcover plate is equipped with through-hole, and the through-hole is in arc
Strip extends along the circular direction of the buttcover plate；One end of the connection cutting has docking end, the docking end
It is pressed on the buttcover plate, the other end of the connection cutting passes through the buttcover plate, has and extends to outside the buttcover plate
Linkage section, the periphery of the linkage section is equipped with card slot, circular direction extension of the card slot along the buttcover plate, the company
The linkage section for patching item is connected with fixture block, has the accommodation groove of upper end opening in the fixture block, the two side walls of the fixture block
The upper end opening of top towards the accommodation groove is protruded, and forms two strips arranged in opposite directions, has between two strips
The linkage section in gap, the connection cutting is placed in the accommodation groove, and two strips are partly embedded in the card slot,
And another part of the strip abuts the buttcover plate.
10. underwater concreting conduit docking structure as claimed in claim 9, which is characterized in that the connection cutting
There is gap, one end of the strip and the side wall of fixture block connect, the strip between Butt Section and the bottom of the accommodation groove
The other end towards the buttcover plate tilt arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811527491.XA CN109442111A (en) | 2018-12-13 | 2018-12-13 | Underwater concreting conduit docking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811527491.XA CN109442111A (en) | 2018-12-13 | 2018-12-13 | Underwater concreting conduit docking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109442111A true CN109442111A (en) | 2019-03-08 |
Family
ID=65558211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811527491.XA Withdrawn CN109442111A (en) | 2018-12-13 | 2018-12-13 | Underwater concreting conduit docking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109442111A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350893A (en) * | 2020-03-08 | 2020-06-30 | 中国路桥工程有限责任公司 | Connecting type conduit device for underwater concrete pouring |
| CN114893639A (en) * | 2022-05-20 | 2022-08-12 | 深圳市天健棚改投资发展有限公司 | Local quick-freezing plant suitable for water pipeline is maintained |
-
2018
- 2018-12-13 CN CN201811527491.XA patent/CN109442111A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350893A (en) * | 2020-03-08 | 2020-06-30 | 中国路桥工程有限责任公司 | Connecting type conduit device for underwater concrete pouring |
| CN114893639A (en) * | 2022-05-20 | 2022-08-12 | 深圳市天健棚改投资发展有限公司 | Local quick-freezing plant suitable for water pipeline is maintained |
| CN114893639B (en) * | 2022-05-20 | 2024-05-03 | 深圳市天健棚改投资发展有限公司 | Local quick-freezing device suitable for water pipeline maintenance |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190308 |