A prefabricated algae blocking structure for river channel entrance

Abstract

The application provides an assembled algae blocking building for an inlet and outlet of a river, which comprises algae blocking facilities crossing the inlet and outlet of the river and at least one water passing channel for separating the algae blocking facilities; the algae blocking facilities comprise a plurality of supporting piers and a plurality of rotating algae blocking screens supported by the supporting piers; each rotating algae blocking screen comprises a rotating shaft, a first driving device and an algae blocking screen body for separating water bodies, the algae blocking screen body is connected with the rotating shaft and horizontally arranged between two adjacent supporting piers, and the first driving device is connected with the rotating shaft and capable of driving the rotating shaft to rotate. The assembled algae blocking building for the inlet and outlet of the river has the advantages of compact structure, reliable operation, convenient construction, low cost and wide applicability, and has basic functions of closing the algae blocking screen body to separate water bodies in the high algae period, opening the algae blocking screen body to drain water in the flood season and navigation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water conservancy and municipal separate water bodies, water diversion and drainage, navigation, in particular to a fabricated algae blocking structure for river mouth. BACKGROUND

[0002] The diversion and drainage river connected with large water bodies such as lakes and reservoirs undertakes the functions of water diversion, drainage, navigation, etc. In recent years, the cyanobacterial pollution of large water bodies is increasingly serious. The cyanobacterial density of some lakes is at a high level for a long time. The water quality index of some water bodies deteriorates from Class III to Class V. If the polluted water directly flows into the diversion and drainage river, the pollutants will accumulate in the water body due to long-time retention, which may cause the black and smelly phenomenon of some rivers, and overturn the achievements of water environment governance in many years.

[0003] In view of the current situation, the main treatment measures at present are to build algae blocking facilities and algae control facilities at the mouth of the diversion and drainage river. The algae blocking facilities are used to separate the large water body from the water body of the diversion and drainage river during the high algae period, so that the raw water with high algae content can only flow through the pre-established water passage. The water passage is provided with algae control facilities such as algae elimination well, so that the raw water with high algae content is treated by the algae control facilities before being introduced into the diversion and drainage river, thereby providing water guarantee for urban industry and residents' life.

[0004] In the prior art, the algae blocking facilities at the mouth of the diversion and drainage river mainly use the existing gate station or newly built water gate. The investment of the newly built water gate is large, and it is limited by objective factors such as ecological red line, basic farmland protection and navigation. It is difficult to build a water gate at some river mouths. The algae blocking facilities at the mouths of some local rivers use the algae blocking screen composed of PVC cloth hung under the oil containment boom. The algae blocking screen is difficult to completely separate the lower water body, and it is completely laid by manual operation, which takes a long time and affects the flood season and navigation. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the present application is to provide a fabricated algae blocking structure for river mouth, which has the advantages of compact structure, reliable operation, convenient construction, low cost and wide applicability, and has the basic functions of closing the algae blocking screen body to separate the water body during the high algae period, and opening the algae blocking screen body to drain water and navigate during the flood season.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] A fabricated algae blocking structure for river mouth, comprising an algae blocking facility across the mouth of the diversion and drainage river and at least one water passage separating the algae blocking facility; the algae blocking facility comprises a plurality of piers and a plurality of rotating algae blocking screens supported by the piers;

[0008] Each rotating algae barrier includes a rotating shaft, a first driving device, and an algae barrier body for isolating water. The algae barrier body is connected to the rotating shaft and is horizontally installed between two adjacent supports. The first driving device is connected to the rotating shaft and can drive the rotating shaft to rotate.

[0009] In this technical solution, by adopting the structural design described above, the first driving device can drive the rotating shaft to rotate, thereby causing the algae-blocking screen body to rotate. This switches the water isolation state and the water discharge / navigation state of the algae-blocking screen body, enabling the algae-blocking structure provided by this technical solution to have the basic functions of closing the algae-blocking screen body to isolate the water during the high algae season and opening the algae-blocking screen body to drain water or allow navigation during the flood season. The structural design is simple and easy to promote. The first driving device can be various types of gate openers, such as hydraulic gate openers, wire rope winch gate openers, electric screw gate openers, etc. The water treated by the algae control facility is introduced into the drainage channel through the water passage, thereby ensuring the water supply for urban industry and residents. At the same time, the water passage can also be further used for navigation, meeting the navigation needs of the river.

[0010] Preferably, the algae-blocking screen body includes a partition structure located below the normal water level and a hollow structure located above the normal water level.

[0011] In this technical solution, by adopting the above-described structural design, the algae-blocking screen body is divided into a partition structure (i.e., a non-perforated structure) located below the normal water level and a perforated structure located above the normal water level, with the normal water level as the dividing line. This ensures the water-blocking effect of the algae-blocking screen body on the one hand, and reduces wind load on the other hand, increasing the overall stability and service life of the algae-blocking facility.

[0012] Preferably, the rotating shaft is horizontally mounted on two adjacent supports, with the upper end of the algae barrier body connected to the rotating shaft and the lower end in contact with the bottom of the river channel.

[0013] In this technical solution, by adopting the above-described structural design, the rotating shaft is horizontally mounted on two adjacent supports, and the algae barrier body is located between the two adjacent supports. The upper end of the algae barrier body is connected to the rotating shaft. Compared with the structural design of placing the rotating shaft at the bottom of the river, this design is simpler and does not require special sealing measures for the bottom shaft, thus simplifying construction.

[0014] Preferably, the lower end of the algae-blocking screen body adopts a flexible rubber plate structure.

[0015] In this technical solution, by adopting the above-described structural design, the lower end of the algae barrier body contacts the bottom of the river through a flexible rubber plate structure, ensuring that it can completely isolate the lower water body.

[0016] Preferably, the prefabricated algae-blocking structure at the inlet of the drainage channel is arranged in an arc shape, with the convex surface of the arc facing upstream.

[0017] In this technical solution, by adopting the above-described structural design, the arc-shaped arrangement can reduce the impact of water on the algae-blocking facility, reduce the damage to the algae-blocking screen body and other structures caused by the impact of water, thereby increasing the overall service life of the algae-blocking facility.

[0018] Preferably, the pier includes several pile foundations embedded in the bottom soil layer of the river channel, pier columns supported on the upper part of each pile foundation, and cap beams erected on the pier columns.

[0019] In this technical solution, by adopting the structural design described above, the algae-blocking structure provided by this technical solution is easy to construct.

[0020] Preferably, the pile foundation is constructed using underwater pile driving.

[0021] In this technical solution, by adopting the above-described structural design, the pile foundation of the pier is constructed by underwater pile driving, which is simple in structural design, convenient in construction, and has a short construction period.

[0022] Preferably, the pier column includes a pier column body and a protective casing fitted outside the pier column body, wherein the pier column body is formed by pouring concrete using the protective casing as a template.

[0023] In this technical solution, by adopting the above-described structural design, the pier column uses a protective casing as a formwork for pouring concrete. The structural design is simple, the construction is convenient, and the construction period is short.

[0024] Preferably, the piers located on both sides of the algae barrier body are waist-shaped piers, and the outer periphery of the waist-shaped piers has a straight section that serves as a side water-stop seat plate for the algae barrier body.

[0025] In this technical solution, by adopting the structural design described above, the sealing performance on both sides of the algae barrier body can be improved, thereby ensuring the isolation effect on the water body.

[0026] Preferably, a first driving device is connected to both sides or one side of the rotating shaft.

[0027] In this technical solution, by adopting the above-described structural design, the user can select the number of first drive devices to use according to actual needs. When the shaft length is long, one first drive device can be arranged on each side of the shaft; when the shaft length is short, one first drive device can be arranged on either side of the shaft, thereby reducing the demand for first drive devices and making the structural design simpler.

[0028] Preferably, the first drive device is simultaneously connected to the ends of two adjacent rotating shafts.

[0029] In this technical solution, by adopting the above-described structural design, the first driving device can drive two rotating shafts to rotate simultaneously, thereby reducing the demand on the first driving device, making the structural design simpler, and lowering the economic cost.

[0030] Preferably, the first driving device is a hydraulic gate hoist, and the piston rod of the hydraulic gate hoist is connected to the rotating shaft via a transmission arm.

[0031] In this technical solution, by adopting the above-described structural design, the first driving device is a hydraulic gate hoist. The piston rod of the hydraulic gate hoist is connected to the rotating shaft via a transmission arm. The structural design is simple and the operation is convenient.

[0032] Preferably, it also includes a locking mechanism, which locks the algae-blocking screen body in the desired position by locking the transmission arm.

[0033] In this technical solution, by adopting the above-described structural design, the algae-blocking screen body is locked in the required position by the locking mechanism, thereby reducing the burden on the drive device and making the algae-blocking structure more stable and reliable in the required state.

[0034] Preferably, the locking mechanism includes a second driving device and a locking seat. The second driving device is connected to the transmission arm and is connected to a locking pin. The locking seat is provided with a locking hole that cooperates with the locking pin. The second driving device can drive the locking pin to insert into the locking hole to lock the transmission arm.

[0035] In this technical solution, by adopting the above-described structural design, when it is necessary to lock the algae barrier screen body in the required position, it is only necessary to control the second driving device to drive the locking pin to insert into the locking hole. The structure is simple and the operation is convenient.

[0036] Preferably, the locking seat is provided with a first locking hole and a second locking hole. When the locking pin is inserted into the first locking hole, the algae barrier body is locked in the water isolation state. When the locking pin is inserted into the second locking hole, the algae barrier body is locked in the water discharge / navigation state.

[0037] In this technical solution, by adopting the above-described structural design, and utilizing the design of the first locking hole and the second locking hole, the algae barrier body is locked in the state of water isolation and the state of water discharge / navigation. The structural design is simple and the operation is convenient.

[0038] Preferably, a sightseeing bridge is erected on several of the piers.

[0039] In this technical solution, by adopting the structural design described above, the algae-blocking structure provided by this technical solution fully considers the needs of landscape creation and is ecologically beautiful.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel provided by the present invention has a compact structure, reliable operation, convenient construction, low cost and wide applicability. It has basic functions such as closing the algae-blocking screen to isolate the water body during the high algae season, opening the algae-blocking screen to drain water during the flood season, and allowing navigation.

[0042] 2. The prefabricated algae-blocking structure at the inlet of the drainage channel provided by this invention can adopt pile foundations constructed by underwater pile driving, and the superstructure adopts prefabricated components, which is convenient to construct, has a short construction period, and the overall layout of the structure fully considers the needs of landscape creation, making it ecologically beautiful. Attached Figure Description

[0043] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0044] Figure 1 This is a top view of the prefabricated algae-blocking structure at the outlet of the drainage channel as described in Example 1;

[0045] Figure 2 This is a side view of the prefabricated algae-blocking structure at the outlet of the drainage channel as described in Example 1;

[0046] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0047] Figure 4 This is a partial front view of the prefabricated algae-blocking structure at the outlet of the drainage channel as described in Example 1;

[0048] Figure 5 for Figure 1 A magnified view of a portion of the image;

[0049] Figure 6 This is a partial top view of the prefabricated algae-blocking structure at the outlet of the drainage channel described in Example 3;

[0050] Figure 7 This is a partial front view of the prefabricated algae-blocking structure at the outlet of the drainage channel as described in Example 3.

[0051] The diagram shows:

[0052] 10-Buttress;

[0053] 11-Pile foundation;

[0054] 12-piers;

[0055] 12a - Waist-shaped pier;

[0056] D - Line segment;

[0057] 12b - Circular pier;

[0058] 13-Cap Beam;

[0059] 20-Rotating algae-blocking screen;

[0060] 21-Hydraulic gate hoist;

[0061] 22-Drive arm;

[0062] 23-Shaft;

[0063] 24 - Algae-blocking screen body;

[0064] 24a - Partition structure;

[0065] 24b - Hollowed-out structure;

[0066] 25-Locking seat;

[0067] 25a - First locking hole;

[0068] 25b - Second locking hole;

[0069] 40 - Water passage;

[0070] 50 - Sightseeing Bridge;

[0071] 200-Algae Control Facilities Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0073] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0074] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, all directional indications (such as up, down, left, right, front, back, bottom, etc.) in this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, descriptions involving "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0075] Example 1

[0076] like Figure 1 As shown, this embodiment provides a prefabricated algae-blocking structure for the inlet gate of a drainage channel. The structure includes six piers 10 installed at the inlet gate of the drainage channel and four rotating algae-blocking screens 20 supported by these six piers 10. A water passage 40 is provided between the four rotating algae-blocking screens 20.

[0077] Among them, four rotating algae-blocking screens 20 and six support piers 10 together form an algae-blocking facility that separates large water bodies from the water bodies of the diversion and discharge channels during the high algae season. Due to the obstruction of the algae-blocking facility, raw water with a high algae content can only flow through the opened water passage 40. An algae control facility 200 is set up on the upstream side of the water passage 40. The raw water with a high algae content is treated by the algae control facility 200 before it is introduced into the diversion and discharge channels through the water passage 40, thereby ensuring the water supply for urban industry and residential use.

[0078] Specifically, such as Figure 2 As shown, each of the piers 10 includes three pile foundations 11 embedded in the bottom soil layer of the river channel. The pile foundations 11 are constructed by underwater pile driving. Each pile foundation 11 is supported by a pier column 12. The pier column 12 includes the pier column body and the protective casing fitted outside the pier column body. The pier column body is formed by pouring concrete with the protective casing as a template. The three pier columns 12 are supported by cap beams 13.

[0079] Regarding the rotating algae-blocking screen 20, for example... Figure 2 As shown, each rotating algae barrier 20 includes a rotating shaft 23, a first driving device, and an algae barrier body 24 for isolating water. The first driving device is a hydraulic hoist 21, which is mounted on a support, which is supported on a cap beam 13. The piston rod of the hydraulic hoist 21 is connected to the rotating shaft 23 via a transmission arm 22. Figure 4As shown, the pivot 23 is horizontally mounted on the cap beam 13 of two adjacent piers 10, and the algae barrier body 24 is horizontally mounted between the two adjacent piers 10. Its upper end is connected to the pivot 23, and its lower end is in contact with the bottom of the river.

[0080] The hydraulic gate hoist 21 drives the rotating shaft 23 to rotate through the transmission arm 22, thereby causing the algae barrier body 24 to rotate. This switches the water isolation state and the water discharge / navigation state of the algae barrier body 24. Thus, the algae barrier structure provided in this embodiment has the basic functions of closing the algae barrier body 24 to isolate the water during the high algae season and opening the algae barrier body 24 to drain water or allow navigation during the flood season. The structure is simple in design and easy to promote.

[0081] Furthermore, to ensure the water isolation effect of the rotating algae barrier 20, the lower end of the barrier body 24 adopts a flexible rubber plate structure, thereby ensuring that when it is in the water isolation state, the bottom is in complete contact with the riverbed; furthermore, such as Figure 5 As shown, the pier 12 connecting to the algae barrier body 24 is designed as a waist-shaped pier 12a, while the other two piers 12 can be designed as conventional circular piers 12b. The waist-shaped pier 12a has a straight line segment D on its outer periphery, which serves as a side water-stop plate for the algae barrier body 24, thereby ensuring that the algae barrier body 24 is sealed and leak-proof on both sides when it is in a water-blocking state.

[0082] Furthermore, to improve the service life of the algae-blocking structure provided in this embodiment, such as... Figure 1 As shown, the algae-blocking facilities are arranged in an arc shape at the inlet of the drainage channel, with the convex side of the arc facing upstream, i.e., the side with the large water body. This reduces the impact force of the water body on the algae-blocking facilities and minimizes damage to the algae-blocking screen body 24 and other structures caused by the impact of the water body; simultaneously, as Figure 4 As shown, the algae barrier body 24 is divided into a partition structure 24a (i.e., a non-perforated structure) located below the normal water level and a perforated structure 24b located above the normal water level, with the normal water level as the dividing line. This ensures the water barrier effect of the algae barrier body 24 on the one hand, and reduces the wind load on the other hand, improving the overall stability of the algae barrier facility.

[0083] During application, the algae-blocking screen 24 has at least two states: a vertical water barrier state installed in the river channel during the high algae season, and a water discharge / navigation state lying on the water surface during the flood season. Both states may be maintained for a relatively long time. Therefore, if Figure 3 As shown, the rotating algae barrier 20 is also equipped with a locking mechanism, which locks the algae barrier body 24 in the state of water isolation or water discharge / navigation through the locking transmission arm 22.

[0084] Specifically, the locking mechanism includes a second driving device and a locking seat 25. The second driving device is a locking cylinder, which is fixed to the transmission arm 22. The piston rod of the locking cylinder is connected to a locking pin. The locking seat 25 is provided with a first locking hole 25a and a second locking hole 25b that cooperate with the locking pin. When it is desired to lock the algae barrier body 24 in the water isolation state, the locking cylinder drives the locking pin to insert into the first locking hole 25a provided on the locking seat 25. When it is desired to lock the algae barrier body 24 in the water discharge or navigation state, the locking cylinder drives the locking pin to insert into the second locking hole 25b provided on the locking seat 25.

[0085] Furthermore, to take into account the needs of landscape design, this embodiment also erects a sightseeing bridge 50 on the cap beam 13 of the six piers 10. Of course, users can also choose to erect a traffic bridge on the cap beam 13 of the six piers 10.

[0086] The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel provided in this embodiment is compact in structure, reliable in operation, convenient in construction, low in cost, and widely applicable. It possesses basic functions such as closing the algae-blocking screen 24 during high algae blooms to isolate the water body, and opening the screen 24 during flood season for drainage and navigation. The foundation of the structure adopts a pile foundation constructed with underwater driven piles, and the superstructure uses prefabricated components, making construction convenient and shortening the construction period. Furthermore, the overall layout of the structure provided in this embodiment fully considers landscape design requirements, resulting in an ecologically aesthetically pleasing design.

[0087] Example 2

[0088] This embodiment provides a prefabricated algae-blocking structure for a drainage channel inlet, which is structurally similar to the prefabricated algae-blocking structure for a drainage channel inlet described in the first embodiment. The difference lies in that, in the first embodiment, as... Figure 1 As shown, each of the two ends of each rotating shaft 23 is driven by an independent hydraulic hoist 21, so that the four rotating algae-blocking screens 20 use a total of eight hydraulic hoists 21.

[0089] In this embodiment, the ends of the two rotating shafts 23 mounted on the same cap beam 13 are synchronously driven to rotate by the same hydraulic hoist 21. This means that only six hydraulic hoists 21 are needed for the four rotating algae-blocking screens 20. When the river channel is relatively wide and the number of rotating algae-blocking screens 20 is large, this structural design can greatly reduce the demand for hydraulic hoists 21 and correspondingly reduce the demand for structures such as transmission arms 22 and locking mechanisms. As a result, the prefabricated algae-blocking structure at the river inlet gate provided in this embodiment has a simpler structural design and lower economic cost.

[0090] 3rd Embodiment

[0091] This embodiment provides a prefabricated algae-blocking structure for a drainage channel inlet, which is structurally similar to the prefabricated algae-blocking structure for a drainage channel inlet described in the first embodiment. The difference lies in that, in the first embodiment, as... Figure 1 As shown, each of the two ends of each rotating shaft 23 is driven by an independent hydraulic hoist 21, so that the four rotating algae-blocking screens 20 use a total of eight hydraulic hoists 21.

[0092] In this embodiment, such as Figure 6 and Figure 7 As shown, each pivot 23 is equipped with a hydraulic hoist 21 on only one side. Therefore, the prefabricated algae-blocking structure at the inlet of the drainage channel provided in this embodiment only requires four hydraulic hoists 21, even if each pivot 23 is equipped with an independent hydraulic hoist 21. The structure is simple and reliable, which not only reduces the need for hydraulic hoists 21, transmission arms 22, locking mechanisms, etc., but also eliminates the need for a dual-cylinder synchronous control device.

[0093] Based on this, when the ends of the two rotating shafts 23 mounted on the same cap beam 13 are synchronously driven to rotate by the same hydraulic hoist 21, the four rotating algae barrier screens 20 only need to use two hydraulic hoists 21, which makes the advantages even more obvious.

[0094] It should be noted that the number of support piers 10, rotating algae-blocking screens 20, and water passages 40 in the above embodiments are merely exemplary. If applicable to wider waterways, the algae-blocking facilities may include more support piers 10 and rotating algae-blocking screens 20, and more water passages 40 may be provided between the rotating algae-blocking screens 20.

[0095] The specific embodiments of the present invention have been described above. Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention.

Claims

1. A prefabricated algae-blocking structure for a river inlet, characterized in that, It includes at least one water passage (40) for algae-blocking facilities that span the entrance of the drainage channel and for isolating algae-blocking facilities; the algae-blocking facilities include several piers (10) and several rotating algae-blocking screens (20) supported by the piers (10). Each rotating algae barrier (20) includes a rotating shaft (23), a first driving device, and an algae barrier body (24) for isolating water. The algae barrier body (24) is connected to the rotating shaft (23) and is horizontally positioned between two adjacent supports (10). The first driving device is connected to the rotating shaft (23) and can drive the rotating shaft (23) to rotate. The algae-blocking screen body (24) includes a partition structure (24a) located below the normal water level and a hollow structure (24b) located above the normal water level. The first drive device is connected to either side of the rotating shaft (23).

2. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 1, characterized in that, The pivot (23) is horizontally mounted on two adjacent supports (10). The upper end of the algae barrier body (24) is connected to the pivot (23), and the lower end is in contact with the bottom of the river.

3. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 1, characterized in that, The lower end of the algae-blocking screen body (24) adopts a flexible rubber plate structure.

4. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 1, characterized in that, The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel is arranged in an arc shape, with the convex side of the arc facing upstream.

5. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 1, characterized in that, The pier (10) includes several pile foundations (11) embedded in the bottom soil layer of the river channel, pier columns (12) supported on the top of each pile foundation (11), and cap beams (13) erected on the pier columns (12).

6. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 5, characterized in that, The pile foundation (11) is constructed by underwater pile driving.

7. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 5, characterized in that, The pier (12) includes a pier body and a protective sleeve fitted outside the pier body. The pier body is formed by pouring concrete using the protective sleeve as a template.

8. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 7, characterized in that, The pillars (12) located on both sides of the algae barrier body (24) are waist-shaped pillars (12a), and the outer periphery of the waist-shaped pillars (12a) has a straight section (D) that serves as a side water-stop seat plate of the algae barrier body (24).

9. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 1, characterized in that, The first driving device is a hydraulic gate opener (21), and the piston rod of the hydraulic gate opener (21) is connected to the rotating shaft (23) via the transmission arm (22).

10. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 9, characterized in that, The rotating algae-blocking screen (20) also includes a locking mechanism, which locks the algae-blocking screen body (24) in the desired position by locking the transmission arm (22).

11. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 10, characterized in that, The locking mechanism includes a second driving device and a locking seat (25). The second driving device is connected to the transmission arm (22) and a locking pin is connected to the second driving device. The locking seat (25) is provided with a locking hole that cooperates with the locking pin. The second driving device can drive the locking pin to insert into the locking hole to lock the transmission arm (22).

12. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 11, characterized in that, The locking seat (25) is provided with a first locking hole (25a) and a second locking hole (25b). When the locking pin is inserted into the first locking hole (25a), the algae barrier body (24) is locked in the state of blocking water. When the locking pin is inserted into the second locking hole (25b), the algae barrier body (24) is locked in the state of water discharge or navigation.

13. The prefabricated algae-blocking structure at the inlet of the diversion and drainage channel according to claim 5, characterized in that, Traffic bridges or sightseeing bridges (50) are erected on several of the aforementioned cap beams (13).

Images