CN209873834U - Dyke danger removal and reinforcement combined movable cofferdam - Google Patents
Dyke danger removal and reinforcement combined movable cofferdam Download PDFInfo
- Publication number
- CN209873834U CN209873834U CN201920602499.1U CN201920602499U CN209873834U CN 209873834 U CN209873834 U CN 209873834U CN 201920602499 U CN201920602499 U CN 201920602499U CN 209873834 U CN209873834 U CN 209873834U
- Authority
- CN
- China
- Prior art keywords
- cofferdam
- fixedly connected
- frame
- cofferdam frame
- threaded rod
- 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- Withdrawn - After Issue
Links
Landscapes
- Revetment (AREA)
Abstract
The utility model discloses a dyke removes dangerous combination formula removal cofferdam that consolidates, which comprises a fixed base, the left surface fixedly connected with stopper of fixing base, first recess has been seted up to the right flank of fixing base, the first cofferdam frame of last fixed surface of fixing base is connected with, the interior diapire fixed mosaic of first cofferdam frame has symmetrical first bearing, symmetrical first gear has been placed to the inside of first cofferdam frame, the equal fixedly connected with threaded rod of inner circle of every first bearing, the top of every threaded rod all runs through every first gear and extends to the top of first gear, the surface of every threaded rod all with the inner wall fixed connection of first gear. The utility model relates to a rational in infrastructure, it can effectually support first cofferdam frame, has avoided first cofferdam frame to take place the phenomenon of collapsing at the in-process that bears pressure, can make spacing post inject the inside of third recess, has realized the fast assembly to first cofferdam frame, has realized the lift to second cofferdam frame.
Description
Technical Field
The utility model relates to a cofferdam technical field specifically is a combination formula removal cofferdam is consolidated to dyke removal danger.
Background
The cofferdam is a temporary enclosure structure constructed for constructing permanent water conservancy facilities in the water conservancy project construction, has the function of preventing water and soil from entering the construction position of a building so as to drain water in the cofferdam, excavate a foundation pit and construct the building, is generally mainly used in hydraulic buildings, is generally used as a part of a formal building, is generally dismantled after being used up, and has the height higher than the highest water level which can appear in the construction period.
The cofferdam is required to be used in the process of dike danger removal, the cofferdam at the current stage is large in size and difficult to construct under the interference of flood, corresponding emergency operation cannot be rapidly and safely carried out in water, the dangerous situation cannot be effectively restrained, the cofferdam is inconvenient to move, time and labor are wasted, at present, the cofferdam on the market does not lift, and influence is caused to the working efficiency.
SUMMERY OF THE UTILITY MODEL
One) technical problem to be solved
The utility model aims at providing a dyke removes dangerous reinforcement combination formula and removes cofferdam in order to compensate prior art not enough exactly.
II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a combined movable cofferdam for embankment danger elimination and reinforcement comprises a fixed seat, wherein a limiting block is fixedly connected to the left side surface of the fixed seat, a first groove is formed in the right side surface of the fixed seat, a first cofferdam frame is fixedly connected to the upper surface of the fixed seat, symmetrical first bearings are fixedly embedded in the inner bottom wall of the first cofferdam frame, symmetrical first gears are placed inside the first cofferdam frame, a threaded rod is fixedly connected to the inner ring of each first bearing, the top end of each threaded rod penetrates through each first gear and extends to the position above the first gear, the outer surface of each threaded rod is fixedly connected with the inner wall of the first gear, a second groove is formed in the inner bottom wall of the first cofferdam frame, a positive and negative motor is fixedly connected to the inner bottom wall of the second groove, and a second gear is fixedly connected to the outer surface of the output end of the positive and negative motor, each first gear is in transmission connection with each second gear through a toothed chain, a partition board is placed inside the first cofferdam frame, the left end and the right end of the partition board are fixedly connected with the inner side wall of the first cofferdam frame, symmetrical second bearings are fixedly embedded in the upper surface of the partition board, the top end of each threaded rod penetrates through the second bearings and extends to the upper portion of the partition board, the outer surface of each threaded rod is fixedly connected with the inner ring of each second bearing, a first through pipe is fixedly embedded in the inner top wall of the first cofferdam frame, a second cofferdam frame is placed inside the first cofferdam frame, the upper surface of the second cofferdam frame penetrates through the first through pipe and extends to the upper portion of the first cofferdam frame, symmetrical threaded pipes are fixedly embedded in the inner bottom wall of the second cofferdam frame, and the top end of each threaded rod penetrates through each threaded pipe and extends to the inside of the second cofferdam frame, the outer surface of each threaded rod is in threaded connection with the inner wall of each threaded pipe, the right side surface of the first cofferdam frame is provided with a third groove, the upper surface of the first cofferdam frame is provided with a cavity, the inner top wall of the cavity is fixedly embedded with a second through pipe, the inner bottom wall of the cavity is provided with a chute, the inside of the chute is clamped with a sliding block matched with the chute, the inner side wall of the cavity is fixedly connected with a spring, the left end of the spring is fixedly connected with the right side surface of the sliding block, the inner side wall of the cavity is fixedly embedded with a third through pipe, the left side surface of the sliding block is fixedly connected with a limiting column, the left end of the limiting column penetrates through the third through pipe and extends to the outer side of the first cofferdam frame, the upper surface of the sliding block is fixedly connected with a baffle, the top end of the baffle penetrates through the second through pipe and extends to the upper side of the first cofferdam frame, and the front and back surfaces of the first cofferdam frame and the second cofferdam frame are fixedly connected with protection plates.
Furthermore, the bottom surface of the fixing seat is fixedly connected with a balancing weight, and the bottom surface of the balancing weight is provided with anti-skid grains.
By adopting the technical scheme, the combined movable cofferdam for embankment danger removal and reinforcement can effectively support the first cofferdam frame, and the phenomenon that the first cofferdam frame collapses in the process of bearing pressure can be avoided.
Furthermore, symmetrical inclined plates are fixedly connected to the inner bottom wall of the first cofferdam frame, and one end, close to each other, of each inclined plate is fixedly connected with the outer surface of the positive and negative motor.
Through adopting above-mentioned technical scheme, make a dyke remove dangerous reinforcement combination formula and remove cofferdam can support positive and negative motor, can avoid positive and negative motor to take place the obscission.
Furthermore, every the equal fixedly connected with limiting plate in top of threaded rod, and the horizontal length value of limiting plate is greater than the horizontal length value of threaded rod.
By adopting the technical scheme, the combined movable cofferdam for embankment danger removal and reinforcement can avoid the falling-off phenomenon of the second cofferdam frame and improve the stability of the second cofferdam frame.
Further, the horizontal length value of the second cofferdam frame is smaller than that of the first through pipe, and the second cofferdam frame is located inside the first through pipe.
By adopting the technical scheme, the combined movable cofferdam for embankment danger removal and reinforcement can enable the second cofferdam frame to move up and down, and the phenomenon of blocking of the second cofferdam frame in the process of moving up and down can be avoided.
Furthermore, the vertical length value of the limiting column is smaller than that of the third three-way pipe, and the limiting column is located inside the third three-way pipe.
By adopting the technical scheme, the combined movable cofferdam for embankment danger removal and reinforcement can enable the limiting column to move left and right, and the phenomenon of blocking and stopping of the limiting column in the process of moving left and right can be avoided.
III) beneficial effects
Compared with the prior art, the combined movable cofferdam for embankment danger removal and reinforcement has the following beneficial effects:
firstly, the method comprises the following steps: the utility model discloses a balancing weight uses down with the cooperation of antiskid line, can effectually support first cofferdam frame, avoided first cofferdam frame to take place the phenomenon of collapsing at the in-process that bears pressure, the security of first cofferdam frame has been improved, utilize the stopper to use down with the cooperation of first recess simultaneously, can promote the stability of fixing base, stir the baffle simultaneously, utilize the pressure of spring, can make spacing post inject the inside of third recess, the fast assembly to first cofferdam frame has been realized, the work efficiency has been promoted, positive and negative motor is linked together with external power supply after that, can make the output of positive and negative motor rotate, utilize the rotation of positive and negative motor output, can drive the second gear rotation, utilize the toothed chain simultaneously, can drive the threaded rod and rotate.
Secondly, the method comprises the following steps: the utility model discloses an utilize under the cooperation of baffle and second bearing is used, can improve the stability of threaded rod, the phenomenon of threaded rod breaking takes place at the in-process of bearing pressure has been avoided, the stability of threaded rod is improved, utilize the screwed pipe to go up and down the second cofferdam frame simultaneously, the lift to the second cofferdam frame has been realized, utilize first siphunculus, can make the second cofferdam frame reciprocate, the in-process that has avoided the second cofferdam frame to reciprocate takes place the card pause phenomenon, under the use through the limiting plate, can avoid the second cofferdam frame to take place the obscission, the stability of second cofferdam frame has been promoted, utilize waterproof pad simultaneously, can avoid the water source from the cofferdam, cause the pollution to the water source.
Drawings
Fig. 1 is a sectional view of a first cofferdam frame of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;
fig. 3 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.
In the figure: 1. a first cofferdam frame; 2. a limiting block; 3. a fixed seat; 4. a balancing weight; 5. a first groove; 6. a waterproof pad; 7. a third groove; 8. a cavity; 9. a third pipe; 10. a limiting column; 11. a chute; 12. a baffle plate; 13. a second pipe; 14. a slider; 15. a spring; 16. a first through pipe; 17. a limiting plate; 18. a threaded rod; 19. a threaded pipe; 20. a second cofferdam frame; 21. a second gear; 22. a partition plate; 23. a second bearing; 24. a first gear; 25. a first bearing; 26. a positive and negative motor; 27. a second groove; 28. a sloping plate; 29. a toothed chain.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model provides a technical solution: a combined movable cofferdam for embankment danger elimination and reinforcement comprises a fixed seat 3, wherein the left side surface of the fixed seat 3 is fixedly connected with a limiting block 2, the right side surface of the fixed seat 3 is provided with a first groove 5, the upper surface of the fixed seat 3 is fixedly connected with a first cofferdam frame 1, the inner bottom wall of the first cofferdam frame 1 is fixedly embedded with symmetrical first bearings 25, symmetrical first gears 24 are placed inside the first cofferdam frame 1, the inner ring of each first bearing 25 is fixedly connected with a threaded rod 18, the top end of each threaded rod 18 penetrates through each first gear 24 and extends to the upper part of the first gear 24, the outer surface of each threaded rod 18 is fixedly connected with the inner wall of the first gear 24, the inner bottom wall of the first cofferdam frame 1 is provided with a second groove 27, the inner bottom wall of the second groove 27 is fixedly connected with a positive and negative motor 26, the outer surface of the output end of the positive and negative motor 26 is fixedly, each first gear 24 and each second gear 21 are in transmission connection through a toothed chain 29, a partition plate 22 is placed inside the first cofferdam frame 1, the left end and the right end of each partition plate 22 are fixedly connected with the inner side wall of the first cofferdam frame 1, symmetrical second bearings 23 are fixedly embedded in the upper surface of each partition plate 22, the top end of each threaded rod 18 penetrates through the second bearings 23 and extends to the upper side of the partition plate 22, the outer surface of each threaded rod 18 is fixedly connected with the inner ring of each second bearing 23, a first through pipe 16 is fixedly embedded in the inner top wall of the first cofferdam frame 1, a second cofferdam frame 20 is placed inside the first cofferdam frame 1, the upper surface of the second cofferdam frame 20 penetrates through the first through pipe 16 and extends to the upper side of the first cofferdam frame 1, symmetrical threaded pipes 19 are fixedly embedded in the inner bottom wall of the second cofferdam frame 20, the top end of each threaded rod 18 penetrates through each threaded pipe 19 and extends to the inside of the second cofferdam frame 20, the outer surface of each threaded rod 18 is in threaded connection with the inner wall of each threaded pipe 19, the right side surface of the first cofferdam frame 1 is provided with a third groove 7, the upper surface of the first cofferdam frame 1 is provided with a cavity 8, the inner top wall of the cavity 8 is fixedly embedded with a second through pipe 13, the inner bottom wall of the cavity 8 is provided with a chute 11, the inside of the chute 11 is clamped with a slide block 14 matched with the chute 11, the inner side wall of the cavity 8 is fixedly connected with a spring 15, the left end of the spring 15 is fixedly connected with the right side surface of the slide block 14, the inner side wall of the cavity 8 is fixedly embedded with a third through pipe 9, the left side surface of the slide block 14 is fixedly connected with a limit post 10, the left end of the limit post 10 penetrates through the third through pipe 9 and extends to the outer side of the first cofferdam frame 1, the upper surface of the slide block 14 is fixedly connected with a baffle plate 12, the top end of the baffle plate 12 penetrates through the second through pipe 13, both the front and the back of the first cofferdam frame 1 and the second cofferdam frame 20 are fixedly connected with protection plates.
Furthermore, the bottom surface of the fixing seat 3 is fixedly connected with a balancing weight 4, and the bottom surface of the balancing weight 4 is provided with anti-skid lines.
By adopting the technical scheme, the combined movable cofferdam for embankment danger removal and reinforcement can effectively support the first cofferdam frame 1, and the phenomenon that the first cofferdam frame 1 collapses in the process of bearing pressure can be avoided.
Further, symmetrical inclined plates 28 are fixedly connected to the inner bottom wall of the first cofferdam frame 1, and one end of each inclined plate 28, which is close to each other, is fixedly connected to the outer surface of the positive and negative motor 26.
By adopting the technical scheme, the combined movable cofferdam for embankment danger removal and reinforcement can support the positive and negative motors 26, and the falling-off phenomenon of the positive and negative motors 26 can be avoided.
Further, the top end of each threaded rod 18 is fixedly connected with a limiting plate 17, and the horizontal length value of the limiting plate 17 is larger than that of the threaded rod 18.
By adopting the technical scheme, the combined movable cofferdam for embankment danger removal and reinforcement can avoid the falling-off phenomenon of the second cofferdam frame 20 and improve the stability of the second cofferdam frame 20.
Further, the horizontal length of the second cofferdam frame 20 is smaller than that of the first through pipe 16, and the second cofferdam frame 20 is located inside the first through pipe 16.
By adopting the technical scheme, the combined movable cofferdam for embankment danger removal and reinforcement can enable the second cofferdam frame 20 to move up and down, and the phenomenon of blocking of the second cofferdam frame 20 in the process of moving up and down can be avoided.
Further, the vertical length value of the limiting column 10 is smaller than that of the third pipe 9, and the limiting column 10 is located inside the third pipe 9.
By adopting the technical scheme, the combined movable cofferdam for embankment danger removal and reinforcement can enable the limiting column 10 to move left and right, and the blocking phenomenon of the limiting column 10 in the process of moving left and right can be avoided.
The working principle is as follows: the first cofferdam frame 1 can be effectively supported by the matching of the balancing weight 4 and the anti-slip lines, the stability of the fixing seat 3 can be improved by the matching of the limiting block 2 and the first groove 5, the baffle 12 can be simultaneously shifted, the limiting column 10 can be inserted into the third groove 7 by the pressure of the spring 15, then the positive and negative motor 26 is communicated with an external power supply, the output end of the positive and negative motor 26 can be rotated, the second gear 21 can be driven to rotate by the rotation of the output end of the positive and negative motor 26, the threaded rod 18 can be driven to rotate by the toothed chain 29, the stability of the threaded rod 18 can be improved by the matching of the baffle 22 and the second bearing 23, the second cofferdam frame 20 can be lifted by the threaded pipe 19, the lifting of the second cofferdam frame 20 is realized, the first through pipe 16 is utilized, can make second cofferdam frame 20 reciprocate, avoid second cofferdam frame 20 to take place the stuck phenomenon at the in-process that reciprocates, under the use through limiting plate 17, can avoid second cofferdam frame 20 to take place the obscission, utilize waterproof pad 6 simultaneously, can avoid the water source to spill from the cofferdam, cause the pollution to the water source.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A dyke removes dangerous reinforcement combination formula and removes cofferdam, includes fixing base (3), its characterized in that: the left side surface of the fixed seat (3) is fixedly connected with a limiting block (2), the right side surface of the fixed seat (3) is provided with a first groove (5), the upper surface of the fixed seat (3) is fixedly connected with a first cofferdam frame (1), the inner bottom wall of the first cofferdam frame (1) is fixedly embedded with symmetrical first bearings (25), symmetrical first gears (24) are placed inside the first cofferdam frame (1), the inner ring of each first bearing (25) is fixedly connected with a threaded rod (18), the top end of each threaded rod (18) penetrates through each first gear (24) and extends to the upper side of the first gear (24), the outer surface of each threaded rod (18) is fixedly connected with the inner wall of the first gear (24), the inner bottom wall of the first cofferdam frame (1) is provided with a second groove (27), the inner bottom wall of the second groove (27) is fixedly connected with a positive and negative motor (26), the outer surface of the output end of the positive and negative motor (26) is fixedly connected with a second gear (21), each first gear (24) is in transmission connection with the second gear (21) through a toothed chain (29), a partition plate (22) is placed inside the first cofferdam frame (1), the left end and the right end of the partition plate (22) are fixedly connected with the inner side wall of the first cofferdam frame (1), symmetrical second bearings (23) are fixedly embedded on the upper surface of the partition plate (22), the top end of each threaded rod (18) penetrates through the second bearings (23) and extends to the upper side of the partition plate (22), the outer surface of each threaded rod (18) is fixedly connected with the inner ring of each second bearing (23), a first through pipe (16) is fixedly embedded on the inner top wall of the first cofferdam frame (1), and a second cofferdam frame (20) is placed inside the first cofferdam frame (1), the upper surface of the second cofferdam frame (20) penetrates through the first through pipe (16) and extends to the upper side of the first cofferdam frame (1), symmetrical threaded pipes (19) are fixedly embedded in the inner bottom wall of the second cofferdam frame (20), the top end of each threaded rod (18) penetrates through each threaded pipe (19) and extends to the inside of the second cofferdam frame (20), the outer surface of each threaded rod (18) is in threaded connection with the inner wall of each threaded pipe (19), a third groove (7) is formed in the right side surface of the first cofferdam frame (1), a cavity (8) is formed in the upper surface of the first cofferdam frame (1), a second through pipe (13) is fixedly embedded in the inner top wall of the cavity (8), a sliding groove (11) is formed in the inner bottom wall of the cavity (8), and a sliding block (14) matched with the sliding groove (11) is clamped in the sliding groove (11), the utility model discloses a cofferdam, including the inside wall fixedly connected with spring (15) of cavity (8), the left end of spring (15) and the right flank fixed connection of slider (14), the inside wall of cavity (8) is fixed to be inlayed and is had third tee pipe (9), the left surface fixedly connected with spacing post (10) of slider (14), the left end of spacing post (10) runs through third tee pipe (9) and extends to the outside of first cofferdam frame (1), the last fixed surface of slider (14) is connected with baffle (12), the top of baffle (12) runs through second siphunculus (13) and extends to the top of first cofferdam frame (1), the equal fixedly connected with waterproof pad (6) of the left and right sides face of first cofferdam frame (1), the equal fixedly connected with guard plate of the positive and negative face of first cofferdam frame (1) and second cofferdam frame (20).
2. A embankment-risk-removal-reinforcement combined type mobile cofferdam according to claim 1, wherein: the bottom surface of the fixing seat (3) is fixedly connected with a balancing weight (4), and the bottom surface of the balancing weight (4) is provided with anti-skid grains.
3. A embankment-risk-removal-reinforcement combined type mobile cofferdam according to claim 1, wherein: the inner bottom wall of the first cofferdam frame (1) is fixedly connected with symmetrical inclined plates (28), and one end, close to each other, of each inclined plate (28) is fixedly connected with the outer surface of the positive and negative motor (26).
4. A embankment-risk-removal-reinforcement combined type mobile cofferdam according to claim 1, wherein: every the equal fixedly connected with limiting plate (17) in top of threaded rod (18), and the horizontal length value of limiting plate (17) is greater than the horizontal length value of threaded rod (18).
5. A embankment-risk-removal-reinforcement combined type mobile cofferdam according to claim 1, wherein: the horizontal length value of the second cofferdam frame (20) is smaller than that of the first through pipe (16), and the second cofferdam frame (20) is positioned inside the first through pipe (16).
6. A embankment-risk-removal-reinforcement combined type mobile cofferdam according to claim 1, wherein: the vertical length value of the limiting column (10) is smaller than that of the third T-pipe (9), and the limiting column (10) is located inside the third T-pipe (9).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920602499.1U CN209873834U (en) | 2019-04-29 | 2019-04-29 | Dyke danger removal and reinforcement combined movable cofferdam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920602499.1U CN209873834U (en) | 2019-04-29 | 2019-04-29 | Dyke danger removal and reinforcement combined movable cofferdam |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209873834U true CN209873834U (en) | 2019-12-31 |
Family
ID=68962850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201920602499.1U Withdrawn - After Issue CN209873834U (en) | 2019-04-29 | 2019-04-29 | Dyke danger removal and reinforcement combined movable cofferdam |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209873834U (en) |
-
2019
- 2019-04-29 CN CN201920602499.1U patent/CN209873834U/en not_active Withdrawn - After Issue
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104234064B (en) | The construction method of a kind of bridge pier cofferdam ruggedized construction | |
CN211816540U (en) | Dredging device for water conservancy and hydropower dam | |
CN209873834U (en) | Dyke danger removal and reinforcement combined movable cofferdam | |
CN211774063U (en) | Dredging device for hydraulic engineering | |
CN112281888A (en) | Excavation supporting method for foundation pit caisson | |
CN107859057A (en) | A kind of retaining wall for hydraulic engineering | |
CN214613905U (en) | A gabion quick construction installing frame for preventing and treat quicksand | |
CN217104898U (en) | Flood control wall for water conservancy | |
CN214883760U (en) | Prefabricated assembled combination hydraulic cofferdam device | |
CN212801596U (en) | Plugging device is foldd to open sea side wall weir | |
CN211285762U (en) | Irrigation and water conservancy ditch silt cleaning device | |
CN113202119A (en) | Combined cofferdam for strong-flow sand-ground layer gabion construction of linear river channel and construction method thereof | |
CN113550318A (en) | Construction method of prefabricated caisson mold capable of replacing brick mold with mucky soil | |
CN204151806U (en) | A kind of bridge pier cofferdam ruggedized construction | |
CN217267576U (en) | Deep foundation pit dewatering device | |
CN216836865U (en) | Lifting device for stably lifting road and bridge | |
CN106480896A (en) | Open caisson preliminary sedimentation method when large-scale well-sinking sinks | |
CN216948131U (en) | Outlet flood control gate structure of drainage pumping station | |
CN218713187U (en) | Building foundation pit dewatering and drainage device | |
CN219261071U (en) | Culvert gate occupied cofferdam structure | |
CN214401849U (en) | Cofferdam structure for hydraulic engineering design | |
CN210482325U (en) | Prefabricated sump pit child mould | |
CN216839518U (en) | Cofferdam structure for hydraulic construction of hydraulic and hydroelectric engineering | |
CN215715376U (en) | Subway construction is with deep basal pit prevention of seepage plugging device | |
CN214530851U (en) | Drilling equipment for water conservancy construction |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
AV01 | Patent right actively abandoned | ||
AV01 | Patent right actively abandoned | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20191231 Effective date of abandoning: 20230427 |
|
AV01 | Patent right actively abandoned |
Granted publication date: 20191231 Effective date of abandoning: 20230427 |