CN223782396U - A water diversion device for water conservancy projects - Google Patents
A water diversion device for water conservancy projectsInfo
- Publication number
- CN223782396U CN223782396U CN202520670347.0U CN202520670347U CN223782396U CN 223782396 U CN223782396 U CN 223782396U CN 202520670347 U CN202520670347 U CN 202520670347U CN 223782396 U CN223782396 U CN 223782396U
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- Prior art keywords
- dredging
- pipe
- rotary
- rotating
- connecting pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
本实用新型公开了一种水利工程引流设备，包括车板、引流过滤机构、疏通调节机构和疏通辅助机构，所述引流过滤机构包括过滤箱、供入泵、供入管、吸出泵和连接管，所述疏通调节机构包括疏通管、旋转套、旋推块、推入簧、疏通片和旋块槽，引流过滤机构通过过滤箱、供入泵、吸出泵及管道结构，有效地将水流中的杂质过滤掉，这能够保证后续设备不被杂质阻塞，延长设备使用寿命，疏通调节机构利用旋推块、推入簧和旋转套的协同作用，能够通过旋转调整疏通片的位置，实现管道的有效疏通，这种设计可以在管道出现堵塞时，方便快速地进行疏通，保持设备的畅通。
This utility model discloses a water diversion device for water conservancy projects, including a platform, a diversion and filtration mechanism, a dredging and adjustment mechanism, and a dredging auxiliary mechanism. The diversion and filtration mechanism includes a filter box, an inlet pump, an inlet pipe, a suction pump, and a connecting pipe. The dredging and adjustment mechanism includes a dredging pipe, a rotating sleeve, a rotary push block, a push spring, a dredging plate, and a rotary block groove. The diversion and filtration mechanism effectively filters out impurities in the water flow through the filter box, inlet pump, suction pump, and pipe structure, which can ensure that subsequent equipment is not blocked by impurities and extend the service life of the equipment. The dredging and adjustment mechanism utilizes the synergistic effect of the rotary push block, push spring, and rotating sleeve to adjust the position of the dredging plate by rotation, thereby achieving effective dredging of the pipe. This design allows for convenient and rapid dredging when the pipe is blocked, keeping the equipment unobstructed.
Description
Technical Field
The utility model relates to the technical field of drainage, in particular to drainage equipment for hydraulic engineering.
Background
In existing hydraulic engineering drainage devices, the problem of blockage of the drainage pipe is a common and troublesome challenge. Once the drainage pipeline is blocked, the overall water flow efficiency can be affected, and a series of negative consequences such as equipment damage, environmental pollution and the like can be caused, so that the problem of blockage of the drainage pipeline and subsequent dredging is particularly important.
The drainage water flow contains a large amount of sediment, suspended matters or other impurities, and the substances can enter the pipeline and gradually accumulate along with the water flow to form blockage. Particularly in the region with higher sediment content, the inner wall of the pipeline is easily covered by sediment, and finally the pipeline is blocked, and the problems of corrosion, sediment increase and the like possibly occur in the pipeline along with the increase of service time, if the pipeline is cleaned and maintained in place regularly, the inner wall of the pipeline is easily attached by impurities, and the pipeline is blocked due to long-term accumulation.
Most of the existing dredging modes rely on manual cleaning, and part of equipment is usually required to be disassembled, and the pipeline is accessed to be manually operated. Especially when pipeline overall arrangement is complicated or be located the difficult position of contact, manual mediation not only wastes time and energy, probably has the potential safety hazard moreover, and traditional mediation mode often can only clear up through instruments such as mechanical shock, cleaning ball, mediation rope, but these methods often are difficult to effectively clear away deep, more intractable plug, and after the mediation, the pipeline can resume normal in the short term, but if impurity is not thoroughly cleared away, still probably takes place the jam again.
Disclosure of utility model
(One) solving the technical problems
Aiming at the problems in the prior art, the utility model provides hydraulic engineering drainage equipment for solving the technical problems that a drainage pipeline in the background art is easy to block, and dredging after the blockage is inconvenient and the like.
(II) technical scheme
The hydraulic engineering drainage device comprises a vehicle plate, a drainage filtering mechanism, a dredging adjusting mechanism and a dredging auxiliary mechanism, wherein the drainage filtering mechanism comprises a filtering box, a feeding pump, a feeding pipe, an aspiration pump and a connecting pipe, the filtering box is arranged at the top end of the vehicle plate, the feeding pipe and the connecting pipe are respectively arranged at two ends of the filtering box, the aspiration pump is arranged at one end of the connecting pipe, the feeding pump is arranged at one end of the feeding pipe, the dredging adjusting mechanism comprises a dredging pipe, a rotating sleeve, a rotary pushing block, a pushing spring, a dredging piece and a rotary block groove, the rotary sleeve is arranged on the outer wall of the dredging pipe in a limiting rotation mode, the rotary block groove is arranged on the inner wall of the rotating sleeve, the rotary pushing block is arranged in the rotary block groove in a rotating mode, the pushing spring is arranged between the rotary pushing block and the inner wall of the rotary block groove, the dredging piece is arranged on the side face of the rotary pushing block, the pushing spring can push the dredging piece on the rotary pushing block to move inwards, and the rotary sleeve is reversely rotated, so that the opening wall of the through pipe is pressed against the rotary pushing block to enable the rotary pushing block to retract into the rotary block groove.
The dredging auxiliary mechanism comprises an outer rotating ring, a first rotating tooth, a rotating rod, a first toothed ring, a second toothed ring and a second rotating tooth, wherein the outer rotating ring is installed on the outer wall of the dredging pipe in a limiting rotation mode, the first toothed ring is installed at the top end and the bottom end of the outer rotating ring, the first rotating tooth is connected with the first toothed ring in a meshing mode, two ends of the rotating rod are connected with the first rotating tooth and the second rotating tooth respectively, the second toothed ring is installed at one end of the rotating sleeve, and the second toothed ring is connected with the second rotating tooth in a meshing mode, so that the reciprocating rotation of the outer rotating ring drives the rotating sleeve to rotate in a reciprocating mode.
The utility model is further characterized in that the bottom end face of the sweep is provided with the bottom wheels at the periphery, the side face of the sweep is provided with the pushing handle, the bottom wheels improve the moving portability of the equipment, reduce the labor intensity of carrying and facilitate the pushing and positioning of the equipment by operators
The utility model is further arranged that one end of the suction pump is provided with a first external connecting pipe, and the other end of the first external connecting pipe is connected with subsequent equipment in a matching way.
The utility model is further arranged that a second outer connecting pipe is arranged at one end of the feeding pump, the second outer connecting pipe is fixed on the vehicle plate, the second outer connecting pipe is connected with an external drainage part in a matched mode, the first outer connecting pipe and the second outer connecting pipe are connected with external equipment, and the universality and the adaptability of the equipment are improved.
The utility model is further characterized in that the outer wall of the dredging pipe is fixedly provided with the double-layer plate, the first rotating teeth and the second rotating teeth are rotatably supported on the double-layer plate, and the double-layer plate provides support for the transmission part, so that the stability of the transmission system is improved.
The utility model is further characterized in that the two ends of the dredging pipe are provided with connecting plates, the connecting plates are connected with the connecting pipes in a matching way, and the connecting plates at the other ends are connected with one end of the sucking pump in a matching way.
The utility model is further provided with a plurality of groups of the rotary pushing blocks, wherein the rotary pushing blocks are symmetrically arranged up and down, and dredging sheets on the rotary pushing blocks which are symmetrically arranged up and down are arranged in opposite directions.
(III) beneficial effects
Compared with the prior art, the utility model provides hydraulic engineering drainage equipment, which comprises the following components
The beneficial effects are that:
The utility model is provided with the drainage filtering mechanism, the drainage filtering mechanism effectively filters impurities in water flow through the filtering box, the feeding pump, the sucking pump and the pipeline structure, can ensure that subsequent equipment is not blocked by the impurities, prolongs the service life of the equipment, and ensures that the feeding and discharging of the water flow can be effectively regulated, thereby ensuring the stability and stability of the filtering process and avoiding equipment faults caused by flow fluctuation.
The utility model is provided with the dredging adjusting mechanism, the dredging adjusting mechanism utilizes the synergistic effect of the rotary pushing block, the pushing spring and the rotary sleeve, and can realize effective dredging of the pipeline by rotating and adjusting the position of the dredging piece, the design can realize the effect that when the pipeline is blocked, the dredging piece can automatically move inwards or outwards as required when rotating, so that accumulated sundries can be cleaned automatically, and convenience and efficiency of use are improved.
The utility model is provided with the dredging auxiliary mechanism, the dredging auxiliary mechanism realizes the reciprocating rotation of the outer rotary ring through the transmission components such as the outer rotary ring, the rotary teeth and the rotary rods, and further drives the rotary sleeve to rotate.
Drawings
FIG. 1 is a schematic view of the whole structure of the device in the unused state;
FIG. 2 is a schematic view of the overall structure of the device in the present utility model from a side view;
FIG. 3 is a schematic view of the structure of the installation position of the dredging adjusting mechanism in the utility model;
FIG. 4 is a schematic view of the dredging adjusting mechanism and the dredging auxiliary mechanism according to the utility model;
FIG. 5 is a schematic view of the inside of the dredging adjusting mechanism and the dredging auxiliary mechanism according to the utility model.
In the figure, 1, a vehicle plate; 2, a filter box, 3, a feeding pump, 4, a feeding pipe, 5, an aspiration pump, 6, a connecting pipe, 7, a dredging pipe, 8, a rotary sleeve, 9, a rotary pushing block, 10, a push spring, 11, a dredging sheet, 12, a rotary block groove, 13, an outer rotary ring, 14, a first rotary tooth, 15, a rotary rod, 16, a first toothed ring, 17, a second toothed ring, 18, a second rotary tooth, 19, a bottom wheel, 20, a push handle, 21, a first outer connecting pipe, 22, a second outer connecting pipe, 23, a double-layer plate, 24 and a connecting plate.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally in the directions shown in the drawings or in the vertical, vertical or gravitational directions, and similarly, for convenience of understanding and description, the terms "left" and "right" are used generally in the directions shown in the drawings, and the terms "inner" and "outer" are used to refer to the inner and outer sides with respect to the outline of each component itself, but the terms of orientation are not intended to limit the present utility model.
Referring to fig. 1-5, a hydraulic engineering drainage device comprises a sweep 1, a drainage filtering mechanism, a dredging adjusting mechanism and a dredging auxiliary mechanism, wherein the drainage filtering mechanism comprises a filtering box 2, a feeding pump 3, a feeding pipe 4, a sucking pump 5 and a connecting pipe 6, the filtering box 2 is arranged at the top end of the sweep 1, the feeding pipe 4 and the connecting pipe 6 are respectively arranged at two ends of the filtering box 2, the sucking pump 5 is arranged at one end of the connecting pipe 6, the feeding pump 3 is arranged at one end of the feeding pipe 4, the dredging adjusting mechanism comprises a dredging pipe 7, a rotating sleeve 8, a rotary push block 9, a push-in spring 10, a dredging piece 11 and a rotary block groove 12, the rotary sleeve 8 is arranged on the outer wall of the dredging pipe 7 in a limiting and rotating way, the rotary block groove 12 is arranged on the inner wall of the rotating sleeve 8, the rotary push block 9 is rotatably arranged in the rotary block groove 12, the push-in spring 10 is arranged between the rotary push block 9 and the inner wall of the rotary block groove 12, the dredging piece 11 is arranged on the side surface of the rotary push block 9, the push-in the push spring 10 can push the rotary push piece 11 to move inwards the rotary push block 9, and the dredging piece 11 rotates inwards to enable the rotary push block 9 to open the rotary block 9 to be reversely opened, and the dredging groove 9 is closed.
In this embodiment, water flow is pumped from an external portion to be drained through the feeding pump 3, the water flow enters the filtering box 2 through the feeding pipe 4 to be filtered, the filtered water flow is conveyed to subsequent equipment through the connecting pipe 6 under the action of the suction pump 5, a complete drainage-filtering-conveying system is formed in the whole process, the rotary sleeve 8 rotates on the outer wall of the dredging pipe 7 to drive the internal rotary pushing block 9 to move, the dredging piece 11 on the rotary pushing block 9 stretches out inwards under the action of the pushing spring 10 to dredge the inner wall of the pipeline, when the dredging piece 11 needs to be retracted, the opening wall of the dredging pipe 7 is pressed to the rotary pushing block 9 through the reverse rotation of the rotary sleeve 8, so that the rotary pushing block 9 is retracted into the rotary block groove 12, and the two-way dredging effect can be achieved due to the fact that the rotary pushing block 9 is symmetrically arranged up and down and the direction of the dredging piece 11 is opposite.
The dredging auxiliary mechanism comprises an outer swivel 13, a first swivel tooth 14, a rotating rod 15, a first toothed ring 16, a second toothed ring 17 and a second swivel tooth 18, wherein the outer swivel 13 is mounted on the outer wall of the dredging pipe 7 in a limiting rotation mode, the first toothed ring 16 is mounted at the top end and the bottom end of the outer swivel 13, the first swivel tooth 14 is connected to the first toothed ring 16 in a meshing mode, two ends of the rotating rod 15 are connected with the first swivel tooth 14 and the second swivel tooth 18 respectively, the second toothed ring 17 is mounted at one end of the rotary sleeve 8, the second toothed ring 17 is connected with the second swivel tooth 18 in a meshing mode, and further the outer swivel 13 is rotated in a reciprocating mode to drive the rotary sleeve 8 to rotate in a reciprocating mode.
In this embodiment, the outer rotating ring 13 is mounted on the outer wall of the dredging pipe 7, the user operates the outer rotating ring 13 to rotate reciprocally, the first toothed ring 16 is meshed with the first rotating teeth 14 to drive the rotating rod 15 to rotate, the second rotating teeth 18 at the other end of the rotating rod 15 are meshed with the second toothed ring 17 at the end part of the rotating sleeve 8, so that the reciprocating rotation of the outer rotating ring 13 is transmitted to the rotating sleeve 8, the mechanical transmission dredging action is realized, and the whole transmission process is performed in a gear meshing mode, so that the stability and controllability of the motion are ensured.
Referring to fig. 1-5, as a supplementary embodiment of the hydraulic engineering drainage device for the drainage filtering mechanism, the dredging adjusting mechanism and the dredging auxiliary mechanism, a bottom wheel 19 is installed around the bottom end surface of the vehicle plate 1, a push handle 20 is installed on the side surface of the vehicle plate 1, a first outer connecting pipe 21 is installed at one end of the suction pump 5, the other end of the first outer connecting pipe 21 is connected with the subsequent device in a matched manner, a second outer connecting pipe 22 is installed at one end of the feeding pump 3, the second outer connecting pipe 22 is fixed on the vehicle plate 1, the second outer connecting pipe 22 is connected with the external drainage part in a matched manner, a double-layer plate 23 is fixedly installed on the outer wall of the dredging pipe 7, the first rotating teeth 14 and the second rotating teeth 18 are rotatably supported and installed on the double-layer plate 23, connecting plates 24 are installed at two ends of the dredging pipe 7, the connecting plates 24 are connected with the connecting pipe 6 in a matched manner, a plurality of groups of the rotary pushing blocks 9 are installed at the other ends in a matched manner, the rotary pushing blocks 9 are symmetrically arranged up and down, and the pieces 11 on the rotary pushing blocks 9 are symmetrically arranged in opposite directions.
More specifically, the equipment is moved to the assigned position through return pulley 19, operating personnel accessible pushes away the adjustment of handle 20, start the feeding pump 3, through the extraction of second takeover 22 follow drainage part, rivers carry out filtration treatment through rose box 2, the rivers after the filtration are carried to follow-up equipment through first takeover 21 under the suction pump 5 effect, when the pipeline appears blocking, operating personnel can start the mediation process through rotating outer swivel 13, the reciprocal rotation of outer swivel 13 drives rotatory cover 8 through gear drive system, rotatory cover 8 drives mediation piece 11 and dredges the clearance to the pipeline, after the mediation is accomplished, reverse rotation makes mediation piece 11 withdraw, resume normal drainage filtration work.
In summary, when the whole device is used or operated, when the drainage and filtration mechanism is required to operate, water flow is pumped from the external part to be drained through the feeding pump 3, enters the filter box 2 through the feeding pipe 4 for filtration, and is conveyed to the subsequent device through the connecting pipe 6 under the action of the suction pump 5, so that the whole process forms a complete drainage-filtration-conveying system.
When the dredging adjusting mechanism is required to operate, the rotary sleeve 8 rotates on the outer wall of the dredging pipe 7 to drive the internal rotary pushing block 9 to move, under the action of the pushing spring 10, the dredging sheet 11 on the rotary pushing block 9 stretches out inwards to dredge the inner wall of the pipeline, when the dredging sheet 11 is required to be withdrawn, the opening wall of the dredging pipe 7 is pressed towards the rotary pushing block 9 by rotating the rotary sleeve 8 reversely, so that the rotary pushing block 9 is withdrawn into the rotary block groove 12, and the direction of the dredging sheet 11 is opposite due to the fact that the rotary pushing block 9 is symmetrically arranged up and down, and the bidirectional dredging effect can be realized.
When the dredging auxiliary mechanism is required to operate, the outer rotating ring 13 is arranged on the outer wall of the dredging pipe 7, the outer rotating ring 13 is operated by a user to rotate in a reciprocating manner, the rotating rod 15 is driven to rotate through the engagement of the first toothed ring 16 and the first rotating teeth 14, the second rotating teeth 18 at the other end of the rotating rod 15 are engaged with the second toothed ring 17 at the end part of the rotating sleeve 8, so that the reciprocating rotary motion of the outer rotating ring 13 is transmitted to the rotating sleeve 8, the mechanical transmission dredging action is realized, and the whole transmission process is performed in a gear engagement manner, so that the stability and the controllability of the motion are ensured.
The equipment is moved to the assigned position through return pulley 19, operating personnel accessible pushes away the adjustment of handle 20, start the feeding pump 3, draw rivers from the part that needs to drain through second takeover 22, rivers are filtered through rose box 2, the rivers after the filtration are carried to follow-up equipment through first takeover 21 under the suction pump 5 effect, when the pipeline appears blocking up, operating personnel can start the mediation process through rotating outer swivel 13, the reciprocal rotation of outer swivel 13 drives rotatory cover 8 through gear drive system and rotates, rotatory cover 8 drives mediation piece 11 and dredges the clearance to the pipeline, after the mediation is accomplished, reverse rotation makes mediation piece 11 withdraw, resume normal drainage filtration work.
In all the above mentioned solutions, in which the connection between two components can be chosen according to the actual situation, a welded, bolt-and-nut-fitted connection, a bolt-or-screw connection or other known connection means, which are not described in detail herein, where reference is made to a written fixed connection, the preferred consideration is welding, although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that numerous variations, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.
Claims (8)
1. A hydraulic engineering drainage device comprises a vehicle plate (1), a drainage filtering mechanism, a dredging adjusting mechanism and a dredging auxiliary mechanism, and is characterized in that the drainage filtering mechanism comprises a filtering box (2), a feeding pump (3), a feeding pipe (4), a sucking pump (5) and a connecting pipe (6), the filtering box (2) is arranged at the top end of the vehicle plate (1), the feeding pipe (4) and the connecting pipe (6) are respectively arranged at two ends of the filtering box (2), the sucking pump (5) is arranged at one end of the connecting pipe (6), the feeding pump (3) is arranged at one end of the feeding pipe (4), the dredging adjusting mechanism comprises a dredging pipe (7), a rotating sleeve (8), a rotary pushing block (9), a pushing spring (10), a dredging piece (11) and a rotary block groove (12), the limiting rotation of the rotating sleeve (8) is arranged on the outer wall of the dredging pipe (7), the rotary pushing block groove (12) is arranged on the inner wall of the rotating sleeve (8), the rotary pushing block (9) is rotatably arranged in the rotary block groove (12), the pushing piece (10) is arranged on the inner wall of the rotary pushing block (9) and can be oppositely pushed to the rotary pushing piece (11) and can move to the inner wall (11), the opening wall of the dredging pipe (7) is pressed to the rotary pushing block (9), and the rotary pushing block (9) is retracted into the rotary block groove (12).
2. The hydraulic engineering drainage device according to claim 1, wherein the dredging auxiliary mechanism comprises an outer rotating ring (13), first rotating teeth (14), a rotating rod (15), a first toothed ring (16), a second toothed ring (17) and second rotating teeth (18), the outer rotating ring (13) is mounted on the outer wall of the dredging pipe (7) in a limiting rotation mode, the first toothed ring (16) is mounted at the top end and the bottom end of the outer rotating ring (13), the first rotating teeth (14) are connected to the first toothed ring (16) in a meshing mode, two ends of the rotating rod (15) are connected with the first rotating teeth (14) and the second rotating teeth (18) respectively, the second toothed ring (17) is mounted at one end of the rotating sleeve (8), and the second toothed ring (17) is connected with the second rotating teeth (18) in a meshing mode, so that the outer rotating ring (13) can drive the rotating sleeve (8) to rotate reciprocally.
3. The hydraulic engineering drainage device according to claim 1 is characterized in that bottom wheels (19) are arranged on the periphery of the bottom end face of the vehicle plate (1), and pushing handles (20) are arranged on the side face of the vehicle plate (1).
4. The hydraulic engineering drainage device according to claim 1, wherein a first outer connecting pipe (21) is arranged at one end of the suction pump (5), and the other end of the first outer connecting pipe (21) is connected with subsequent devices in a matching manner.
5. The hydraulic engineering drainage device according to claim 1, wherein a second outer connecting pipe (22) is arranged at one end of the feeding pump (3), the second outer connecting pipe (22) is fixed on the vehicle plate (1), and the second outer connecting pipe (22) is connected with an external drainage part in a matched mode.
6. The hydraulic engineering drainage device according to claim 2, wherein the outer wall of the dredging pipe (7) is fixedly provided with a double-layer plate (23), and the first rotating teeth (14) and the second rotating teeth (18) are rotatably supported and installed on the double-layer plate (23).
7. The hydraulic engineering drainage device according to claim 1, wherein connecting plates (24) are arranged at two ends of the dredging pipe (7), the dredging pipe is connected with the connecting pipe (6) in a matched mode through the connecting plates (24), and the dredging pipe is connected with one end of the suction pump (5) in a matched mode through the connecting plates (24) at the other end.
8. The hydraulic engineering drainage device according to claim 1, wherein a plurality of groups of the rotary pushing blocks (9) are arranged, the rotary pushing blocks (9) are arranged symmetrically up and down, and dredging sheets (11) on the rotary pushing blocks (9) which are arranged symmetrically up and down are arranged in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520670347.0U CN223782396U (en) | 2025-04-10 | 2025-04-10 | A water diversion device for water conservancy projects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520670347.0U CN223782396U (en) | 2025-04-10 | 2025-04-10 | A water diversion device for water conservancy projects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223782396U true CN223782396U (en) | 2026-01-09 |
Family
ID=98302652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520670347.0U Active CN223782396U (en) | 2025-04-10 | 2025-04-10 | A water diversion device for water conservancy projects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223782396U (en) |
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2025
- 2025-04-10 CN CN202520670347.0U patent/CN223782396U/en active Active
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