CN219343464U - Hydraulic downward opening type weir gate with dredging function - Google Patents

Hydraulic downward opening type weir gate with dredging function Download PDF

Info

Publication number
CN219343464U
CN219343464U CN202320378993.0U CN202320378993U CN219343464U CN 219343464 U CN219343464 U CN 219343464U CN 202320378993 U CN202320378993 U CN 202320378993U CN 219343464 U CN219343464 U CN 219343464U
Authority
CN
China
Prior art keywords
weir
weir gate
plate
hydraulic
cavity
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.)
Active
Application number
CN202320378993.0U
Other languages
Chinese (zh)
Inventor
朱珑珑
孙波
崔林生
周应伟
陈辉辉
田继飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guhong Shanghai Environmental Protection Engineering Equipment Co ltd
Original Assignee
Guhong Shanghai Environmental Protection Engineering Equipment Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guhong Shanghai Environmental Protection Engineering Equipment Co ltd filed Critical Guhong Shanghai Environmental Protection Engineering Equipment Co ltd
Priority to CN202320378993.0U priority Critical patent/CN219343464U/en
Application granted granted Critical
Publication of CN219343464U publication Critical patent/CN219343464U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Barrages (AREA)

Abstract

The utility model discloses a hydraulic downward opening type weir gate with a dredging function, which comprises a weir gate frame, a weir plate, a sealing device, a dredging system, a weir plate box culvert cavity, a hydraulic driving system and a civil engineering installation base, wherein the weir gate frame is arranged in the civil engineering installation base; the utility model has the beneficial effects that: the sludge cleaning can be carried out on the civil engineering cavity at the bottom of the weir gate, the sludge cleaning work can be carried out without dismantling and lifting the weir gate, the civil engineering is not damaged, the normal operation work of the weir gate is not affected, the cleaning is not needed manually, and the manpower resource and cost investment are reduced.

Description

Hydraulic downward opening type weir gate with dredging function
Technical Field
The utility model relates to the technical field of water channel control, in particular to a hydraulic downward opening type weir gate with a dredging function.
Background
On a intercepting well at the middle end of a confluence pipe network, a drainage port at the tail end of the pipe network and a primary rain pipe network, intercepting equipment is often required to be used for diversion or current limiting. And wherein the down-opening weirs are important shut-off, flow regulating and anti-backflow devices. The weir gate is used as a gate arranged at the weir gate for adjusting the height of the weir, is widely applied to various production technical fields, is widely applied to pipelines, box culverts or channels, can play roles in flushing, preventing backflow and adjusting water flow, the downward opening type weir gate can be controlled to descend to be in an open state by controlling the weir gate, and water flow can be discharged from the top of the weir gate to play a role in adjusting the water level before the weir; when the water level of the external river is higher than the water level in the pipe network, the external river is in a closed state by controlling the rising of the weir gate, and the backflow preventing function is achieved. The lower open type weir gate can prevent sludge deposited at the bottom from entering a downstream pipeline or a river channel to a certain extent, and can solve the problem of insufficient installation space at the top end of equipment compared with the upper open type weir gate or the gate, so that the lower open type weir gate is increasingly widely applied in urban drainage pipeline systems.
However, the existing downward opening type weir gate is usually sealed by adopting a flexible rubber sealing strip, so that fine impurities and soil mixtures in sewage cannot be completely guaranteed not to enter a civil cavity at the bottom of the downward opening type weir gate in the lifting process of the weir gate, when the fine impurities and soil mixtures in sewage enter the civil cavity at the bottom of the weir gate and gradually settle into sludge, the opening and closing of the weir gate can be influenced when the sludge is settled to a certain thickness, and the weir gate is blocked by the sludge and cannot descend or ascend, so that the weir gate cannot normally run, and serious disasters such as water pollution, river water backflow and the like are finally caused; when the existing downward opening type weir gate is blocked by silt and cannot run, if the existing downward opening type weir gate needs to be cleaned by the silt, the whole weir gate is lifted out of civil engineering, the civil engineering is damaged, the cleaned silt is completely required to be cleaned manually, operations such as water shutoff and emptying are required to be carried out during cleaning, adverse effects are caused on the safety and operation of operators, cumbersome operations such as reinstallation and glue sealing are required to be carried out on the weir gate after the dredging is completed, time and labor are wasted, the maintenance cost of the weir gate is greatly increased, the silt of the weir gate needs to be cleaned many times in one year, and the required manpower and material resources are greatly increased, so that the existing downward opening type weir gate cannot be finally discarded due to overhigh maintenance cost and cannot normally run, and investment waste is caused.
Disclosure of Invention
(one) solving the technical problems
The utility model aims to solve the technical problems that: the sediment of the silt can influence the opening and closing of the weir gate, so that the weir gate is blocked by the silt and cannot descend or ascend, and therefore the weir gate cannot operate, and serious disasters such as water pollution, river backflow and the like are finally caused; the sludge cleaning work is complicated, the whole weir gate needs to be integrally lifted out of the civil engineering, the civil engineering is damaged, the sludge is cleaned completely by manual cleaning and water shutoff and emptying operations are carried out, and hidden danger is caused to the safety and operation of operators; after sludge is cleaned, the weir gate needs to be reinstalled, the process is time-consuming and labor-consuming, and the maintenance cost of the weir gate is greatly increased; the sludge of the weir gate needs to be cleaned for many times every year, a large amount of manpower and material resources are needed to be input, and the maintenance cost is too high.
(II) technical scheme
In order to solve the problems, the utility model provides the following technical scheme:
the hydraulic downward opening type weir gate with dredging function comprises a weir gate frame, a weir plate, a sealing device, a dredging system, a weir plate box cavity, a hydraulic driving system and a civil engineering installation base, wherein the weir gate frame is arranged in the civil engineering installation base, the weir plate is arranged in the weir gate frame, the weir plate is a concave box body, reinforcing ribs are arranged in the weir plate, weir plate connecting seats are arranged on two sides of the weir plate, the sealing device is integrally U-shaped, is inlaid on the front side and the rear side of the weir gate frame and is in contact with the weir plate, the dredging system comprises a stainless steel hollow steel pipe, a high-pressure suction water pump and a connecting pipe, wherein the stainless steel hollow steel pipe is connected with the high-pressure suction water pump through the connecting pipe, a weir plate box culvert cavity is of a saddle-shaped cavity structure, the weir plate box culvert cavity is arranged in a civil engineering installation base cavity, the upper end of the weir plate box culvert cavity is fixedly connected with a weir gate frame through a bolt, and the hydraulic driving system comprises a hydraulic driving oil cylinder, a hydraulic oil cylinder fixing seat and a hydraulic pipe connecting flange, and the hydraulic oil cylinder fixing seat is fixedly connected with the inner wall of the civil engineering installation base.
Further, the weir gate frame is U-shaped, concave guide grooves are formed in two ends of the weir gate frame, a plurality of second reinforcing ribs are distributed at the outer ends of the guide grooves, connecting holes are formed in the upper ends of the guide grooves, the hydraulic driving oil cylinder is placed in the guide grooves, pin shafts are arranged in the connecting holes, and telescopic ends of the hydraulic driving oil cylinder are fixedly connected with the weir plate connecting seat through the pin shafts.
Further, the top of the weir gate frame is provided with a transverse fixed bending piece, the transverse fixed bending piece is an L-shaped bending piece, a plurality of bolt connection holes are formed in two ends of the transverse fixed bending piece, the transverse fixed bending piece is connected with two ends of the weir gate frame through bolts, and the inner wall of the weir gate frame is provided with a mounting hole cover plate.
Furthermore, the bottom of the weir gate frame is fixedly connected with the civil engineering installation base through a chemical bolt.
Furthermore, the weir plate is of a box-type structure made of stainless steel metal, and an upper opening of the weir plate is U-shaped.
Further, the sealing device comprises a P-type rubber sealing strip and PE plates, and the sealing device is inlaid in the inner walls of the two sides of the guide groove of the weir gate frame.
Furthermore, one end of the stainless steel hollow steel pipe extends into the cavity of the weir plate box culvert, the other end of the stainless steel hollow steel pipe is fixedly connected with the connecting pipe through a fixed flange plate, and the high-pressure suction water pump is arranged at the top of the civil engineering installation base.
Further, the oil cylinder fixing seat comprises a fixing plate and an ear seat, wherein a flange plate fixing hole is formed in the fixing plate, the ear seat is fixed on the fixing plate in a welding mode, and a lifting lug is further arranged on the fixing plate, and the connecting flange is fixed on the fixing plate through bolts.
(III) beneficial effects
The beneficial effects of the utility model are as follows:
1. the sludge can be cleaned up on the civil engineering cavity at the bottom of the weir gate, so that the weir gate is normally opened and closed, and serious disasters such as water pollution, river backflow and the like are avoided.
2. The sludge cleaning work can be performed without disassembling and lifting the weir gate, the civil construction cannot be damaged, normal operation of the weir gate is not affected, manual cleaning is not needed, human resources and cost investment are reduced, and potential safety hazards during manual disassembly and assembly are avoided.
3. Only needs to be installed for life, and the dredging work is not needed to be carried out on the weir gate by repeated disassembly and assembly, so that the installation cost and the complicated work caused by repeated disassembly and assembly are saved.
4. The automatic cleaning can be carried out regularly, the safety is greatly increased, the investment of manpower and material resources is not required, and the later maintenance cost is reduced.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is an enlarged view of part A;
FIG. 3 is a top view of the present utility model;
FIG. 4 is a cross-sectional view A-A;
FIG. 5 is an enlarged view of part B;
FIG. 6 is a sectional view B-B;
FIG. 7 is an enlarged view of part C;
FIG. 8 is a schematic view of a seal arrangement;
the marks in the figure: 1-weir door frame, 2-weir plate, 3-sealing device, 4-dredging system, 5-weir plate box culvert cavity, 6-hydraulic drive system, 7-civil engineering installation base, 8-transverse fixed bending piece, 9-mounting hole cover plate, 10-lug, 1 a-pin roll, 2 a-reinforcing rib, 2 b-weir plate connecting seat, 3a-P type rubber sealing strip, 3b-PE plate, 4 a-stainless steel hollow steel tube, 4 b-high pressure suction water pump, 4 c-connecting tube, 6 a-hydraulic drive cylinder, 6 b-hydraulic cylinder fixing seat, 6 c-hydraulic pipe connecting flange, 6 ba-fixed plate and 6 bb-ear seat.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-8, the hydraulic lower opening type weir gate with dredging function comprises a weir gate frame 1, a weir plate 2, a sealing device 3, a dredging system 4, a weir plate box culvert cavity 5, a hydraulic driving system 6 and a civil engineering installation base 7, wherein the weir gate frame 1 is arranged in the civil engineering installation base 7, the weir plate 2 is arranged in the weir gate frame 1, the weir plate 2 is in a concave-shaped box body, reinforcing ribs 2a are arranged in the weir plate 2, weir plate connecting seats 2b are arranged on two sides of the weir plate 2, the sealing device 3 is integrally U-shaped and embedded on the front side and the rear side of the weir gate frame 1 and is in contact with the weir plate 2, the dredging system 4 comprises a stainless steel hollow steel pipe 4a, a high-pressure suction water pump 4b and a connecting pipe 4c, the stainless steel hollow steel pipe 4a is connected with the high-pressure suction water pump 4b through the connecting pipe 4c, the weir plate box culvert cavity 5 is in a saddle-shaped cavity structure, the weir plate box culvert cavity 5 is arranged in the civil engineering installation base 7 cavity, the upper end of the weir plate box cavity 5 is fixedly connected with the gate frame 1 through bolts and comprises a hydraulic driving system 6b and a hydraulic driving flange 6b and a hydraulic driving pipe 6b, and a hydraulic cylinder fixing base 6b is fixedly connected with the inner wall of the hydraulic driving system 6b and a hydraulic cylinder base 6b is fixedly connected with the hydraulic cylinder base 6 b.
Referring to fig. 1, a U-shaped weir gate frame 1 is provided, concave guide grooves are formed at two ends of the weir gate frame 1, a plurality of second reinforcing ribs are distributed at outer ends of the guide grooves for reinforcing the weir gate frame 1, connecting holes are formed at upper ends of the guide grooves, pin shafts 1a are arranged in the connecting holes, a hydraulic driving oil cylinder 6a is placed in the guide grooves, a telescopic end of the hydraulic driving oil cylinder 6a is fixedly connected with a weir plate connecting seat 2b through the pin shafts 1a, namely, a telescopic end of the hydraulic driving oil cylinder 6a is fixedly connected with a weir plate 2 through the weir plate connecting seat 2b, and the hydraulic driving oil cylinder 6a drives the weir plate 2 to move up and down in the weir gate frame to control opening and closing of the weir gate.
The top of the weir door frame 1 is provided with a transverse fixed bending piece 8, the transverse fixed bending piece 8 is an L-shaped bending piece, a plurality of bolt connection holes are formed in two ends of the transverse fixed bending piece 8, the transverse fixed bending piece 8 is connected with two ends of the weir door frame 1 through bolts, the transverse fixed bending piece 8 is used for reinforcing stability and firmness of the weir door frame 1, and the inner wall of the weir door frame 1 is provided with a mounting hole cover plate 9, so that follow-up maintenance and inspection maintenance are facilitated.
The bottom of the weir gate frame 1 is fixedly connected with a civil engineering installation base 7 through a chemical bolt.
Referring to fig. 4, the weir plate 2 is a box-type structure made of stainless steel metal, and the upper opening of the weir plate 2 is U-shaped.
Referring to fig. 8, the sealing device 3 includes a P-type rubber sealing strip 3a and a PE plate 3b, and the sealing device 3 is embedded in inner walls of two sides of the guide groove of the weir gate frame 1.
Referring to fig. 1 and 6, one end of a stainless steel hollow steel pipe 4a extends into a slice box culvert cavity 5, the other end of the stainless steel hollow steel pipe 4a is fixedly connected with a connecting pipe 4c through a fixed flange, a high-pressure suction water pump 4b is arranged at the top of a civil engineering installation base 7, and an automatic control system and a driving dredging system 4 are used for regularly cleaning sludge in the slice box culvert cavity 5 by high-pressure water flow and pumping out a mud-water mixture, so that the effect of timely cleaning culvert sludge in the slice box culvert cavity 5 is achieved, and a guarantee is provided for long-term stable operation of a downward opening type slice gate.
Referring to fig. 2 and 5, the cylinder fixing base 6b is configured to provide a supporting force for the hydraulic driving cylinder 6a, and is connected with the hydraulic driving cylinder 6b through the lug base 6bb, so that the hydraulic driving cylinder 6a is fixed in concave guide grooves on two sides of the weir gate frame 1 and is connected with the weir plate 2, the weir plate 2 is driven to move up and down through movement of a telescopic end of the hydraulic driving cylinder 6a, the cylinder fixing base 6b includes a fixing plate 6ba and the lug base 6bb, a flange plate fixing hole is formed in the fixing plate 6ba, the lug base 6bb is fixed on the fixing plate 6ba in a welding manner, a lifting lug 10 is further arranged on the fixing plate, the lifting lug 10 is configured to hoist and mount the hydraulic driving cylinder, and is detachable, a hydraulic pipe connecting flange 6c is fixed on the fixing plate 6ba through a bolt, a hydraulic pipe passing hole is formed in the middle of the hydraulic pipe connecting flange 6c, and the hydraulic pipe of the hydraulic driving cylinder 6a passes through the hydraulic pipe passing through the hole, and oil pressure is provided for the hydraulic driving cylinder 6a through the hydraulic pipe.
The specific working principle is as follows: the weir plate 2 moves up and down in the weir gate frame 1 under the drive of the hydraulic drive oil cylinder 6a, thereby playing a role in opening and closing the downward opening type weir gate: the special saddle-shaped weir plate box culvert cavity 5 is arranged in the civil engineering cavity at the bottom of the weir gate frame 1, hollow stainless steel pipes 4a which directly reach the low-lying parts at the two sides of the weir plate box culvert cavity 5 are arranged at the two sides of the weir plate 2, and the other ends of the stainless steel hollow steel pipes 4a are connected with a high-pressure suction water pump 4b for cleaning and pumping sewage. The sludge in the slice box culvert cavity 5 is cleaned by high-pressure water flow and the mud-water mixture is pumped out periodically through the automatic control system, so that the effect of timely cleaning the slice box culvert sludge is achieved, and a guarantee is provided for long-term stable operation of the downward opening type slice gate.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (8)

1. A hydraulic downward opening type weir gate with dredging function is characterized in that: including weir door frame (1), weir plate (2), sealing device (3), desilting system (4), weir plate box culvert cavity (5), hydraulic drive system (6) and civil engineering installation base (7), weir door frame (1) is located in civil engineering installation base (7), weir plate (2) are located in weir door frame (1), weir plate (2) are the concave box, inside strengthening rib (2 a) that is equipped with of weir plate (2), weir plate (2) both sides are equipped with weir plate connecting seat (2 b), sealing device (3) wholly are the U type, inlay in both sides around weir plate frame (1) and with weir plate (2) contact, desilting system (4) include stainless steel hollow steel pipe (4 a), high-pressure suction pump (4 b) and connecting pipe (4 c), stainless steel hollow steel (4 a) with high-pressure suction pump (4 b) are passed through connecting pipe (4 c), weir plate (2) are equipped with strengthening rib (2 a), sealing device (3) wholly are U type, seal device (3) wholly are in the side of being equipped with in the body (6) of the hydraulic drive system (6), the cavity (6) is arranged in the body (6) is arranged in the cavity (6) of the body, the cavity (6) is arranged in the cavity (5) is arranged in the cavity (6) is arranged in the cavity (5) side (5) to the body (5) The hydraulic oil cylinder fixing seat (6 b) is fixedly connected with the inner wall of the civil engineering mounting base (7), and the hydraulic oil cylinder fixing seat (6 b) is connected with the hydraulic pipe fitting connecting flange (6 c).
2. A hydraulic downward opening type weir gate with dredging function as claimed in claim 1, wherein: the novel weir gate comprises a weir gate frame (1), wherein the weir gate frame (1) is U-shaped, concave guide grooves are formed in the two ends of the weir gate frame (1), a plurality of second reinforcing ribs are distributed at the outer ends of the guide grooves, connecting holes are formed in the upper ends of the guide grooves, pin shafts (1 a) are arranged in the connecting holes, a hydraulic driving oil cylinder (6 a) is placed in the guide grooves, and telescopic ends of the hydraulic driving oil cylinder (6 a) are fixedly connected with a weir plate connecting seat (2 b) through the pin shafts (1 a).
3. A hydraulic downward opening type weir gate with dredging function as claimed in claim 2, wherein: the novel weir gate frame is characterized in that a transverse fixed bending piece (8) is arranged at the top of the weir gate frame (1), the transverse fixed bending piece (8) is an L-shaped bending piece, a plurality of bolt connection holes are formed in two ends of the transverse fixed bending piece (8), the transverse fixed bending piece (8) is connected with two ends of the weir gate frame (1) through bolts, and a mounting hole cover plate (9) is arranged on the inner wall of the weir gate frame (1).
4. A hydraulic downward opening type weir gate with dredging function as claimed in claim 1, wherein: the bottom of the weir gate frame (1) is fixedly connected with the civil engineering mounting base (7) through a chemical bolt.
5. A hydraulic downward opening type weir gate with dredging function as claimed in claim 1, wherein: the weir plate (2) is of a box-type structure made of stainless steel metal, and an upper opening of the weir plate (2) is U-shaped.
6. A hydraulic downward opening type weir gate with dredging function as claimed in claim 1, wherein: the sealing device (3) comprises a P-type rubber sealing strip (3 a) and a PE plate (3 b), and the sealing device (3) is inlaid on the inner walls of the two sides of the guide groove of the weir gate frame (1).
7. A hydraulic downward opening type weir gate with dredging function as claimed in claim 1, wherein: one end of the stainless steel hollow steel pipe (4 a) extends into the weir plate box culvert cavity (5), the other end of the stainless steel hollow steel pipe (4 a) is fixedly connected with the connecting pipe (4 c) through a fixed flange, and the high-pressure suction water pump (4 b) is arranged at the top of the civil engineering mounting base (7).
8. A hydraulic downward opening type weir gate with dredging function as claimed in claim 1, wherein: the oil cylinder fixing seat (6 b) comprises a fixing plate (6 ba) and an ear seat (6 bb), a flange plate fixing hole is formed in the fixing plate (6 ba), the ear seat (6 bb) is fixedly connected with the fixing plate (6 ba) in a welding mode, a lifting lug (10) is further arranged on the fixing plate, and a hydraulic pipe fitting connecting flange (6 c) is fixed onto the fixing plate (6 ba) through bolts.
CN202320378993.0U 2023-03-03 2023-03-03 Hydraulic downward opening type weir gate with dredging function Active CN219343464U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320378993.0U CN219343464U (en) 2023-03-03 2023-03-03 Hydraulic downward opening type weir gate with dredging function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320378993.0U CN219343464U (en) 2023-03-03 2023-03-03 Hydraulic downward opening type weir gate with dredging function

Publications (1)

Publication Number Publication Date
CN219343464U true CN219343464U (en) 2023-07-14

Family

ID=87113210

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320378993.0U Active CN219343464U (en) 2023-03-03 2023-03-03 Hydraulic downward opening type weir gate with dredging function

Country Status (1)

Country Link
CN (1) CN219343464U (en)

Similar Documents

Publication Publication Date Title
KR101577977B1 (en) Floodgate using hydraulic cylinder
CN113605331B (en) Modular quick-assembly water retaining cofferdam for flood discharge runner maintenance and construction method thereof
KR101324671B1 (en) Gate Pump
CN110607837A (en) Sewage intercepting well and application
CN219343464U (en) Hydraulic downward opening type weir gate with dredging function
KR20100010477U (en) Construction of Floodgate
CN116043991A (en) Hydraulic downward opening type weir gate with dredging function
CN210318581U (en) Double-gate hydraulic gate valve for land dredging
CN214423534U (en) Intelligent sewage intercepting well of overturning weir
CN212641711U (en) Prevent flowing backward rainwater box culvert and cut dirty pump station
CN210857138U (en) Water stopping device for hydraulic engineering construction
KR102646119B1 (en) Steel pipe with sluice valve chamber
CN211690702U (en) Sewage intercepting well
KR20180011907A (en) Ascent-Type HDPE Sluice
CN218175765U (en) Manual two-way cut-off equipment
CN220364952U (en) Gate frame fixing mechanism for sluice construction
CN113323117A (en) Hydraulic cyclone separation type sewage intercepting well and construction method
CN219033104U (en) Assembled canal structure for hydraulic engineering
CN219100279U (en) Water inlet safety gate well suitable for gravity flow and gravity flow underground sewage treatment plant
CN212426996U (en) Hydraulic pressure downward opening weir gate
CN218027537U (en) Hydraulic hoist for lower horizontal door
CN111042166A (en) Spiral plugging device and method for deep foundation pit dewatering well
CN215948100U (en) Underdrain reinforcing combination system
CN216275530U (en) Two-way water-stop gate
CN218814279U (en) Hydraulic drainage device, intercepting well and drainage system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant