CN219118090U - Combined layered water taking gate - Google Patents
Combined layered water taking gate Download PDFInfo
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- CN219118090U CN219118090U CN202223223393.1U CN202223223393U CN219118090U CN 219118090 U CN219118090 U CN 219118090U CN 202223223393 U CN202223223393 U CN 202223223393U CN 219118090 U CN219118090 U CN 219118090U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The utility model provides a combined layered water taking gate, which comprises a plurality of gate components positioned at different heights; each gate assembly comprises a gate body, a door frame, a driving device, a first transmission structure and a second transmission structure, and the gate bodies are rotatably connected with the door frame; the driving device is fixedly connected with the door frame, and the second transmission structure is fixedly connected with the door body; the second transmission structure is circular or arc-shaped, and the circle center corresponding to the second transmission structure is positioned on the rotation axis of the door body; the driving device is connected with the first transmission structure and can drive the first transmission structure to rotate, and the first transmission structure is in transmission connection with the second transmission structure; the driving device drives the first transmission structure and the second transmission structure to move relatively, so that the door body is driven to rotate. The combined layered water taking gate provided by the utility model has a relatively simplified structure, is convenient to operate, runs stably and is convenient to install and detach.
Description
Technical Field
The utility model relates to the technical field of hydraulic engineering, in particular to a combined layered water taking gate.
Background
In large-scale hydraulic and hydroelectric engineering, because the water depth is great, the water of different degree of depth has different characteristics. In order to draw relatively suitable water bodies, layered water taking measures are often required.
The layered water taking gate of the traditional hydropower station generally adopts a structure of a stop log gate, and has the defects that: when water is taken in layers, one or more stop-beam doors are required to be installed or removed one by one, the operation is complex, and the water taking efficiency is low.
In addition, a layered water taking gate is developed in the prior art, and water is taken from water bodies with different water levels by arranging a plurality of rotatable gate blades. The gate has a complex overall structure, is inconvenient to operate, and requires a large driving force to achieve the purpose.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a combined layered water taking gate.
The combined layered water taking gate provided by the utility model comprises a plurality of gate assemblies positioned at different heights;
each gate assembly comprises a gate body, a door frame, a driving device, a first transmission structure and a second transmission structure, and the gate bodies are rotatably connected with the door frame;
the driving device is fixedly connected with the door frame, and the second transmission structure is fixedly connected with the door body; the second transmission structure is circular or arc-shaped, and the circle center corresponding to the second transmission structure is positioned on the rotation axis of the door body; the driving device is connected with the first transmission structure and can drive the first transmission structure to rotate, and the first transmission structure is in transmission connection with the second transmission structure; the driving device drives the first transmission structure and the second transmission structure to move relatively, so that the door body is driven to rotate.
According to the technical scheme, by adopting the structural design, when water is required to be taken, the door body can be opened from top to bottom or independently opened within a certain water depth range according to the requirement, so that layered water taking is realized, and the operation is more convenient; in addition, through setting up the centre of a circle of second transmission structure on the axis of rotation of the door body for the door body rotates the in-process, and the turning force arm is great and basically keeps unchanged, thereby makes drive arrangement only need continuously provide less driving force and can realize the steady rotation of the door body, and then has reduced drive arrangement's running power and energy consumption. The number of the driving devices, the first transmission structures and the second transmission structures can be set according to actual needs; the rotation direction of the door body can be set according to actual needs, for example, the door body can be set to rotate in the horizontal direction or rotate in the vertical direction; the transmission connection means that the first transmission structure can transmit the rotation process of the first transmission structure to the second transmission structure, so that the second transmission structure rotates along with the rotation of the first transmission structure.
Preferably, the first transmission structure and the second transmission structure are respectively provided with transmission teeth, and the first transmission structure and the second transmission structure are meshed with each other through the transmission teeth.
In the technical scheme, by adopting the structural design, the first transmission structure and the second transmission structure are meshed through the transmission teeth, and the structural design can enable the combined layered water taking gate provided by the utility model to run more stably. The position of the transmission teeth on the first transmission structure can be set according to practical situations, for example, the transmission teeth can be arranged on one side of the first transmission structure far away from the door body or near the door body.
Preferably, the first and second transmission structures are drivingly connected by a toothed pin.
In the technical scheme, by adopting the structural design, the first transmission structure and the second transmission structure are connected through the toothed pin in a transmission way, and the structural design can enable the combined layered water taking gate provided by the utility model to run more stably.
Preferably, the two sides of the combined layered water taking gate are provided with civil engineering structures, the civil engineering structures are provided with mounting grooves, and the door frame can be installed in or removed from the mounting grooves.
In this technical scheme, through adopting above structural design, can make the installation of gate subassembly more convenient to when need overhauling or changing partial gate subassembly, need not to dismantle other gate subassemblies, convenient operation.
Preferably, each gate assembly comprises at least two gate bodies and at least two door frames matched with the gate bodies, each gate body is respectively connected with the door frames in a rotating way, and the door frames are integrally arranged.
In the technical scheme, by adopting the structural design, when the combined layered water taking gate provided by the utility model is installed or overhauled, two or more groups of gate bodies and gate frames can be installed and disassembled simultaneously, so that the operation is convenient.
Preferably, the driving device comprises a worm and gear speed reducer, the worm and gear speed reducer drives the door body to rotate when in operation, and the door body is locked when the worm and gear speed reducer stops operating.
In this technical scheme, through adopting above-mentioned structural design, set up drive arrangement into the worm gear reducer that has the locking function, such structural design can make the door body keep in manger plate position or drainage position steadily. The arrangement positions of the worm and gear speed reducers can be arranged according to actual needs, for example, the worm and gear speed reducers can be arranged in a door frame, so that the required space is further reduced, the arrangement is convenient, and the driving device is prevented from being positioned in a river channel to block water.
Preferably, the driving device comprises a hydraulic motor with a locking function, the door body is driven to rotate when the hydraulic motor operates, and the door body is locked when the hydraulic motor stops operating.
In the technical scheme, by adopting the structural design, the driving device is set to be a hydraulic motor with a locking function, and the structural design can enable the door body to be stably kept at the water blocking position or the water draining position. The hydraulic motor can be arranged according to actual requirements, for example, the hydraulic motor can be arranged in a door frame, so that the required space is further reduced, the hydraulic motor is convenient to arrange, and the driving device is prevented from being positioned in a river channel to block water.
Preferably, each sluice assembly comprises at least two drives, at least two first transmissions and at least two second transmissions.
In this technical scheme, through adopting above-mentioned structural design, can further improve the operational stability of layering water intaking gate.
Preferably, the gate assembly further comprises a dirt blocking plate, wherein the dirt blocking plate is provided with a containing space for containing the first transmission structure and the second transmission structure, and when the gate body rotates, the first transmission structure and the second transmission structure move in the containing space.
In the technical scheme, by adopting the structural design, the dirt blocking plate with the accommodating space is arranged. The structure design can avoid blocking caused by movement of branches and other floaters to the vicinity of the second transmission structure, and influence the transmission process of the driving device, the first transmission structure and the second transmission structure, thereby ensuring the normal operation of the combined layered water taking gate.
Preferably, the door body is of a rectangular structure, the rotation axis of the door body is positioned on the symmetry axis of the door body, and the radius of the second transmission structure is not more than half of the length and/or width of the door body.
In this technical scheme, through adopting above structural design, can make the atress of door body rotation in-process more steady to can set up the size of second transmission structure according to actual conditions.
Preferably, the first transmission structure is a circular transmission gear.
In this technical scheme, through adopting above structural design, set up second transmission structure as drive gear to can realize the transmission process with comparatively simplified structure.
Preferably, the central angle corresponding to the second transmission structure is greater than or equal to 90 °.
In the technical scheme, through adopting the structural design, the central angle corresponding to the second transmission structure is set to be more than or equal to 90 degrees, so that the central angle corresponding to the second transmission structure can be set according to actual needs while water taking is ensured.
Preferably, the gate assembly further comprises a limiting structure, the limiting structure is arranged on the gate body, and the limiting structure is used for limiting the rotation range of the gate body.
In this technical scheme, through adopting above structural design, can further control the rotation of the door body through limit structure to satisfy the control requirement.
Preferably, the driving device adopts a waterproof structure.
In the technical scheme, by adopting the structural design, the combined layered water taking gate provided by the utility model has better waterproof performance.
A combined layered water gate comprises a plurality of gate components positioned at different heights;
each gate assembly comprises a gate body, a door frame, a driving device, a first transmission structure and a second transmission structure, and the gate bodies are rotatably connected with the door frame;
the driving device is fixedly connected with the door body, and the second transmission structure is fixedly connected with the door frame; the second transmission structure is circular or arc-shaped, and the circle center corresponding to the second transmission structure is positioned on the rotation axis of the door body; the driving device is connected with the first transmission structure and can drive the first transmission structure to rotate, and the first transmission structure is in transmission connection with the second transmission structure; the driving device drives the first transmission structure and the second transmission structure to move relatively, so that the door body is driven to rotate.
According to the technical scheme, by adopting the structural design, when water is required to be taken, the door body can be opened from top to bottom or independently opened within a certain water depth range according to the requirement, so that layered water taking is realized, and the operation is more convenient; in addition, through setting up the centre of a circle of second transmission structure on the axis of rotation of the door body for the door body rotates the in-process, and the turning force arm is great and basically keeps unchanged, thereby makes drive arrangement only need continuously provide less driving force and can realize the steady rotation of the door body, and then has reduced drive arrangement's running power and energy consumption.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the combined layered water taking gate provided by the utility model, the driving device, the first transmission structure and the circular or circular arc-shaped second transmission structure are arranged, and the circle center of the second transmission structure is arranged on the rotating shaft line of the gate body, so that the gate body is provided with a larger rotating force arm, and the size of the rotating force arm is kept relatively stable in the rotating process of the gate body, so that the driving device can realize stable rotation only by continuously providing smaller driving force, the running power of the driving device is further reduced, and the energy consumption is reduced;
2. the combined layered water taking gate provided by the utility model has the advantages of simple overall structure, lower cost and higher construction and production speeds;
3. the combined layered water taking gate provided by the utility model can adopt a driving device with smaller volume, can be arranged in a door frame, is convenient to arrange, and avoids water blocking caused by directly arranging the driving device in a river channel.
4. The combined layered water taking gate provided by the utility model has the advantages that the gate assembly and the door frame are detachably connected, so that the installation and the overhaul are convenient.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a first schematic view of embodiment 1 of the present utility model;
FIG. 2 is a second construction schematic of embodiment 1 of the present utility model;
FIG. 3 is a third construction schematic of embodiment 1 of the present utility model;
FIG. 4 is a fourth construction schematic of embodiment 2 of the present utility model;
FIG. 5 is a first schematic view of embodiment 3 of the present utility model;
FIG. 6 is a second construction schematic of embodiment 3 of the present utility model;
FIG. 7 is a schematic view of the structure of embodiment 5 of the present utility model;
fig. 8 is a schematic structural view of embodiment 6 of the present utility model.
The figure shows:
1-a door frame;
2-door body;
31-a driving device;
32-a first transmission structure;
33-a second transmission structure;
4-dirt blocking plate
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Further, all directional indications (such as up, down, left, right, front, rear, bottom …) in this application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular attitude (as shown in the drawings), and if the particular attitude is changed, the directional indication is changed accordingly. Further, the descriptions of "first," "second," etc. in the application are for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
Example 1
As shown in fig. 1 to 3, the present embodiment provides a combined layered water intake gate, which includes a plurality of gate assemblies located at different heights.
Specifically, each gate assembly includes a gate body 2, a door frame 1, a driving device 31, a first transmission structure 32 and a second transmission structure 33, and the gate body 2 is rotatably connected with the door frame 1.
The second transmission structure 33 is arc-shaped, the second transmission structure 33 is fixedly connected with the door body 2, and the circle center corresponding to the second transmission structure 33 is positioned on the rotation axis of the door body 2. In the specific form of the first transmission structure 32, the first transmission structure 32 in this embodiment is a transmission gear. The first transmission structure 32 and the second transmission structure 33 are respectively provided with a plurality of transmission teeth. The first transmission structure 32 and the second transmission structure 33 are engaged with each other by means of transmission teeth. The first transmission structure 32 is connected with the driving device 31, and the driving device 31 can drive the first transmission structure 32 to drive the second transmission structure 33 to rotate, so that the door body 2 is driven to rotate.
The rotation direction of the door body 2 may be set according to actual conditions. In this embodiment, the door body 2 is provided to rotate in the vertical direction, while in other embodiments, the door body 2 may be provided to rotate in the horizontal direction.
In terms of the rotation process of the door body 2, the driving device 31 drives the first transmission structure 32 to rotate, and the first transmission structure 32 drives the second transmission structure 33 to rotate through the transmission teeth, so that the door body 2 is driven to rotate along with the second transmission structure 33. In the actual operation process, when water is needed to be taken, the door body 2 can be opened from top to bottom or part of the door body 2 can be opened independently according to the requirement, so that water can be taken in a specific water depth range. The structural design ensures that the door bodies 2 with different heights can be independently opened or closed, so that the water body with specific depth can be taken according to actual needs, and the operation is more convenient; in addition, the center of the second transmission structure 33 is arranged on the rotation axis of the door body 2, so that the door body 2 has a larger rotation force arm, and the size of the rotation force arm can be kept relatively stable in the rotation process of the door body 2, so that the driving device 31 can realize stable rotation of the door body 2 only by continuously providing a smaller driving force, and the running power and the energy consumption of the driving device 31 are reduced.
Further, in the present embodiment, a mounting groove is formed in the civil engineering structure, and the door frame 1 of each gate assembly is detachably connected to the mounting groove by being fitted into the mounting groove. The gate assembly can be more conveniently installed by the aid of the structural design, and when part of gate assemblies are required to be overhauled or replaced, other gate assemblies are not required to be detached, so that the operation is more convenient.
Further, the driving device 31 is a worm gear reducer, when the reducer is running, the door body 2 can be driven to rotate, and when the reducer stops running, the door body 2 is locked to a certain position through the first transmission structure 32 and the second transmission structure 33. In this embodiment, the driving device 31 is a worm gear reducer, but in other embodiments, the driving device 31 may be configured in other structures, for example, the driving device 31 may be configured as a hydraulic motor having a locking function, when the hydraulic motor is operated, the door body 2 rotates relative to the door frame 1, and when the hydraulic motor stops operating, the door body 2 is locked. As for the position of the driving device 31, as shown in fig. 3, the driving device 31 is arranged in the door frame in this embodiment, and this structural design can make the space occupied by the combined layered water intake gate provided in this embodiment smaller, so that the arrangement is convenient, and water blocking is not caused.
Further, regarding the number of the driving device 31, the first transmission structure 32 and the second transmission structure 33, it may be set according to actual needs, and in this embodiment, the driving device 31, the first transmission structure 32 and the second transmission structure 33 are all provided as one and are disposed at one side of the door body. In other embodiments, the driving device 31, the first transmission structure 32 and the second transmission structure 33 may be provided in two or more.
Further, as for the structure of the first transmission structure 32, it can be set to different forms according to practical situations, and in this embodiment, the first transmission structure 32 is a transmission gear, and the transmission gear is meshed with the second transmission structure 33. Wherein, the size of the transmission gear can be different according to the different positions. For example, when the transmission gear is disposed near the edge of the door body 2, it has a small size to be engaged with the first transmission structure 32; when the transmission gear is disposed near the middle of the door body 2, a larger transmission gear is required to be engaged with the first transmission structure 32.
Example 2
As shown in fig. 4, the present embodiment provides a combined type layered water intake gate which is substantially the same as the combined type layered water intake gate of embodiment 1, except that in embodiment 1, the driving device 31, the first transmission structure 32, and the second transmission structure 33 are all provided as one. In the present embodiment, the driving device 31, the first transmission structure 32 and the second transmission structure 33 are two, and the dirt blocking plate 4 is also provided.
As for the specific structure of the dirt blocking plate 4, in this embodiment, the dirt blocking plate 4 is provided with a receiving space for receiving the first transmission structure 32 and the second transmission structure 33, and when the door body 2 rotates, the first transmission structure 32 and the second transmission structure 33 can move in the receiving space. The structural design can avoid blocking caused by movement of branches and other floaters to the vicinity of the second transmission structure 33, and influence the transmission process of the driving device 31, the first transmission structure 32 and the second transmission structure 33, so that the normal operation of the combined layered water gate provided by the utility model is ensured.
The position of the dirt blocking plate 4 can be set according to actual needs, and in this embodiment, the dirt blocking plate 4 is disposed between the second transmission structure 33 and the door body 2.
Example 3
As shown in fig. 5 to 6, the present embodiment provides a combined type layered water intake gate which is substantially the same as the combined type layered water intake gate of embodiment 1, except that in embodiment 1, the driving device 31, the first transmission structure 32 and the second transmission structure 33 are provided at one side of the gate body, and the driving device 31 is located at the inner side of the second transmission structure 32. In the present embodiment, the driving device 31, the first transmission structure 32 and the second transmission structure 33 are located at the middle of the door body, and the driving device 31 is located at the outer side of the second transmission structure 32.
Example 4
The present embodiment provides a combined type layered water intake gate, which is substantially the same as the combined type layered water intake gate in embodiment 1, and is different in that in embodiment 1, each gate assembly includes a gate body 2 and a door frame 1, i.e., each gate body 2 is disposed independently from each other.
In this embodiment, each gate assembly includes two door bodies 2 and two door frames 1 matched with the door bodies 2, the door bodies 2 are rotatably connected with the door frames 1, and the respective door frames 1 are integrally provided. The structural design can enable the door bodies 2 and the door frame 1 to be installed and detached simultaneously during installation and maintenance, and the operation is more convenient.
Example 5
As shown in fig. 7, the present embodiment provides a combined type layered water intake gate, which is substantially the same as the combined type layered water intake gate of embodiment 1, except that in embodiment 1, the second transmission structure 33 is circular, and in the present embodiment, the second transmission structure 33 is circular.
Example 6
As shown in fig. 8, this embodiment provides a combined type layered water intake gate, which is substantially the same as the combined type layered water intake gate in embodiment 1, except that in embodiment 1, the rotation axis of the door body 2 is located on the symmetry axis of the door body 2, and the radius of the second transmission structure 33 is half the width of the door body 2. In the present embodiment, the radius of the second transmission structure 33 is smaller than half the width of the door body 2.
While the present utility model has been described with reference to the above embodiments, it is apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit of the utility model.
Claims (15)
1. A combined layered water taking gate is characterized by comprising a plurality of gate assemblies positioned at different heights;
each gate assembly comprises a gate body (2), a door frame (1), a driving device (31), a first transmission structure (32) and a second transmission structure (33), and the gate bodies (2) are rotationally connected with the door frame (1);
the driving device (31) is fixedly connected with the door frame (1), and the second transmission structure (33) is fixedly connected with the door body (2); the second transmission structure (33) is circular or arc-shaped, and the circle center corresponding to the second transmission structure (33) is positioned on the rotation axis of the door body (2); the driving device (31) is connected with the first transmission structure (32) and can drive the first transmission structure (32) to rotate, and the first transmission structure (32) is in transmission connection with the second transmission structure (33); the driving device (31) drives the first transmission structure (32) and the second transmission structure (33) to move relatively, so that the door body (2) is driven to rotate.
2. The combined layered water gate according to claim 1, wherein the first transmission structure (32) and the second transmission structure (33) are respectively provided with transmission teeth, and the first transmission structure (32) and the second transmission structure (33) are meshed with each other through the transmission teeth.
3. The combined layered water gate according to claim 1, characterized in that the first transmission structure (32) and the second transmission structure (33) are connected by a toothed pin transmission.
4. The combined layered water gate according to claim 1, wherein the two sides of the combined layered water gate are provided with a civil structure, the civil structure is provided with a mounting groove, and the door frame (1) can be installed in or removed from the mounting groove.
5. The combined layered water gate according to claim 1, wherein each gate assembly comprises at least two gate bodies (2) and at least two door frames (1) matched with the gate bodies (2), each gate body (2) is respectively connected with the door frames (1) in a rotating way, and the door frames (1) are integrally arranged.
6. The combined layered water gate according to claim 1, wherein the driving device (31) comprises a worm gear reducer, the worm gear reducer drives the gate body (2) to rotate when running, and the gate body (2) is locked when the worm gear reducer stops running.
7. A combined layered water gate according to claim 1, characterized in that the driving means (31) comprises a hydraulic motor with locking function, which when operated drives the door body (2) to rotate, and when the hydraulic motor stops operating the door body (2) is locked.
8. A combined layered water gate according to claim 1, characterized in that each gate assembly comprises at least two drive means (31), at least two first transmission structures (32) and at least two second transmission structures (33).
9. The combined layered water gate according to claim 1, wherein the gate assembly further comprises a dirt blocking plate (4), the dirt blocking plate (4) is provided with a containing space for containing the first transmission structure (32) and the second transmission structure (33), and when the gate body rotates, the first transmission structure (32) and the second transmission structure (33) move in the containing space.
10. The combined layered water gate according to claim 1, wherein the gate body (2) has a rectangular structure, the rotation axis of the gate body (2) is located on the symmetry axis of the gate body (2), and the radius of the second transmission structure (33) is not greater than half the length and/or width of the gate body (2).
11. The combination stratification water gate of claim 1 wherein said first drive structure (32) is a circular drive gear.
12. The combined layered water gate according to claim 1, wherein the central angle corresponding to the second transmission structure (33) is greater than or equal to 90 °.
13. The combined layered water gate according to claim 1, wherein the gate assembly further comprises a limit structure disposed on the gate body (2), the limit structure being configured to limit rotation of the gate body (2).
14. A combined layered water gate according to claim 1, characterized in that the driving means (31) is of a watertight construction.
15. A combined layered water taking gate is characterized by comprising a plurality of gate assemblies positioned at different heights;
each gate assembly comprises a gate body (2), a door frame (1), a driving device (31), a first transmission structure (32) and a second transmission structure (33), and the gate bodies (2) are rotationally connected with the door frame (1);
the driving device (31) is fixedly connected with the door body (2), and the second transmission structure (33) is fixedly connected with the door frame (1); the second transmission structure (33) is circular or arc-shaped, and the circle center corresponding to the second transmission structure (33) is positioned on the rotation axis of the door body (2); the driving device (31) is connected with the first transmission structure (32) and can drive the first transmission structure (32) to rotate, and the first transmission structure (32) is in transmission connection with the second transmission structure (33); the driving device (31) drives the first transmission structure (32) and the second transmission structure (33) to move relatively, so that the door body (2) is driven to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223223393.1U CN219118090U (en) | 2022-12-01 | 2022-12-01 | Combined layered water taking gate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223223393.1U CN219118090U (en) | 2022-12-01 | 2022-12-01 | Combined layered water taking gate |
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| CN219118090U true CN219118090U (en) | 2023-06-02 |
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| CN202223223393.1U Active CN219118090U (en) | 2022-12-01 | 2022-12-01 | Combined layered water taking gate |
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