Underwater flexible curtain construction apparatus

Abstract

The application provides underwater flexible curtain construction equipment, which comprises a curtain installation mechanism and a curtain constraint mechanism, wherein the curtain installation mechanism is used for placing a folded flexible curtain, and the curtain constraint mechanism is used for supporting and constraining the curtain installation mechanism, and comprises a plurality of fixed steel sleeves, each of which is a split structure, the top of two side plates of each fixed steel sleeve is connected in a relative rotating mode, an opening and closing device is arranged at the bottom of the fixed steel sleeve, the opening and closing of the two side plates is controlled through the opening and closing device, when the two side plates are closed, the curtain installation mechanism is supported, and when the two side plates are opened, the curtain installation mechanism is released. In the application, the curtain installation mechanism and the curtain constraint mechanism are combined to work, the folded flexible curtain is firstly placed in position, and then the top beam of the curtain installation mechanism is pulled up to unfold the flexible curtain to position, so that the position precision and the construction convenience of the flexible curtain are improved.

Description

Technical Field

[0001] This invention belongs to the field of underwater curtain sinking construction, and in particular relates to an underwater flexible curtain construction equipment. Background Technology

[0002] Flexible curtain structures have been widely used in nearshore engineering. Their materials include impermeable fabric and permeable mesh, used to block water and intercept aquatic organisms, respectively. The top of the flexible curtain can be connected to a fixed offshore structure or a floating breakwater, while the bottom is fixed to the seabed. However, in areas with high wave and current speeds, deep water, or areas with significant soft seabed strata, the installation of flexible curtains remains challenging. If the top of the flexible curtain is first connected to an upper floating structure and then gradually lowered to the seabed, it may deform significantly during the lowering process due to waves and currents, deviating from its intended position. Similarly, during the construction of the bottom foundation structure to the seabed, problems may arise due to deformation of the flexible curtain or unevenness of the seabed, leading to weak connections. Summary of the Invention

[0003] In view of this, the present invention aims to provide an underwater flexible curtain construction equipment to facilitate the construction of flexible curtains and improve the accuracy of curtain sinking construction operations.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] An underwater flexible curtain construction equipment includes:

[0006] The curtain installation mechanism includes a bottom beam and a top beam. The flexible curtain is folded and stacked between the bottom beam and the top beam. The top edge of the flexible curtain is fixed to the top beam and the bottom edge is fixed to the bottom beam.

[0007] The curtain restraint mechanism includes several fixed steel sleeves fitted outside the curtain installation mechanism, and a support plate is provided on the side plate of the fixed steel sleeve to support the curtain installation mechanism;

[0008] The fixed steel sleeve is a split structure, with its two side plates rotatably connected at the top. An opening and closing device is set at the bottom of the fixed steel sleeve to control the opening and closing of the two side plates: when the two side plates are closed, they support the curtain installation mechanism; when the two side plates are open, they release the curtain installation mechanism onto the riverbed or seabed.

[0009] The fixed steel sleeve and the top beam are each connected to the upper structure set up on the water by mooring cables.

[0010] Furthermore, the opening and closing device includes:

[0011] A first spring is installed on the inner side of each of the two side plates, and the first spring is compressed between the bottom beam and the side plate;

[0012] The system includes a horizontal plate and a probe rod. The horizontal plate is located inside the fixed steel sleeve and directly below the bottom beam. Vertical rods are installed at the left and right ends of the horizontal plate, and limiting plates are installed on the inner sides of the two side plates corresponding to the rods. The rods move downwards and are inserted into the limiting plates. The probe rod is located below the fixed steel sleeve and is connected to the horizontal plate via a connecting rod.

[0013] Furthermore, a long bottom plate is provided at the bottom end of one of the side plates, and the connecting rod extends out of the long bottom plate;

[0014] A second spring is provided between the horizontal plate and the long bottom plate, and the second spring pulls down the horizontal plate so that it is tightly attached to the limiting plate.

[0015] Furthermore, the bottom surface of the long base plate is provided with an extended end, which is a U-shaped plate structure with the opening facing upward. Each of its two plate walls is movably fitted with a clamping plate. The two clamping plates are symmetrical, and a third spring is provided between the clamping plate and the inner side of the plate wall.

[0016] The top of the probe rod is inserted into the extended end. Two positioning plates are set at the top of the probe rod corresponding to the two clamping plates. The positioning plates are located below the clamping plates, and a push-up inclined surface structure is set between the positioning plates and the clamping plates.

[0017] Furthermore, several of the fixed steel sleeves are connected by stiffening rods.

[0018] Furthermore, the bottom beam is fixed to the seabed or riverbed by several suction bucket foundations arranged along its length.

[0019] Furthermore, the bottom beam is a split structure, comprising several bottom beam segments, each of which is equipped with a fixed steel sleeve and a suction bucket foundation.

[0020] Furthermore, two adjacent bottom beam sections are connected by four telescopic rods. The four telescopic rods are arranged in pairs, symmetrically on the left and right, at the opposite ends of the two bottom beam sections, with the two telescopic rods in each pair arranged one above the other.

[0021] The telescopic rod includes a sleeve and two extension rods. The two extension rods are respectively located on the front and rear sides of the sleeve, and the inner ends of the two extension rods are respectively movably inserted into the sleeve. The inner ends of the two extension rods are connected by a fourth spring, and the outer ends of the two extension rods are respectively installed on the two bottom beam sections through a ball joint structure.

[0022] Each of the two outriggers has a pier at one end that extends into the sleeve.

[0023] Furthermore, each pair of adjacent bottom beam segments is filled with flexible material in the area between the two sets of telescopic rods, and the flexible material connects the two bottom beam segments.

[0024] Furthermore, the top beam is a hollow structure: several water cavities are arranged along its length without being connected, each water cavity is filled with water, and each water cavity is independently matched with a drainage device; a level is installed on the top beam.

[0025] Compared with existing technologies, the underwater flexible curtain construction equipment described in this invention has the following advantages:

[0026] (1) In this invention, the curtain installation mechanism and the curtain restraint mechanism work together to first place the folded flexible curtain in place, and then pull up the top beam to unfold the flexible curtain, thereby improving the accuracy of the flexible curtain construction position and the convenience of construction.

[0027] (2) In this invention, the opening and closing device can open the curtain restraint mechanism to release the curtain installation mechanism. The setting of the second spring in the curtain restraint mechanism can prevent the probe rod from moving upward immediately due to accidental circumstances (under slight external force) and ensure that the probe rod can work effectively. At the same time, the clamping plate, positioning plate and the third spring work together to prevent the opening and closing device from being misoperated, which is a double insurance function.

[0028] (3) In this invention, several water cavities are set inside the top beam. When the flexible curtain is laid down, water is injected into the water cavities to increase the quantitative weight, improve the wind and wave resistance of the curtain installation mechanism, and ensure the accuracy of the placement position of the curtain installation mechanism. After the flexible curtain is laid down, the water in the water cavities is drained to reduce its own weight and make it easier to pull up the top beam to unfold the flexible curtain.

[0029] (4) In this invention, the bottom beam adopts a split structure, and each pair of adjacent bottom beams are connected by a telescopic rod to improve the fit between the bottom beam and the seabed or riverbed, that is, to ensure the fit between the bottom beam and the seabed or riverbed, so as to ensure the stability of the flexible curtain after construction. Attached Figure Description

[0030] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0031] Figure 1 This is a front view of an underwater flexible curtain construction equipment according to an embodiment of the present invention;

[0032] Figure 2 for Figure 1 AA view;

[0033] Figure 3 for Figure 1 BB view;

[0034] Figure 4 This is a schematic diagram of the opening and closing device in this invention;

[0035] Figure 5 This is a schematic diagram of the connection structure between the two bottom beam segments in this embodiment.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1-Upper structure; 2-Hanging cable; 3-Top beam; 4-Flexible curtain; 5-Drainage device; 6-Level; 7-Fixed steel sleeve; 71-Side plate; 72-Long bottom plate; 8-Holding rod; 9-Lifting lug; 10-Bottom beam; 11-Telescopic rod; 12-Flexible material; 13-Extended wing plate; 14-Cylinder; 15-Extended end; 16-First spring; 17-Limiting plate; 18-Probe rod; 19-Connecting rod; 20-Fixed wing plate; 21-Clamping plate; 22-Positioning plate; 23-Level plate; 24-Insertion rod; 25-Pin shaft; 26-Second spring; 27-Third spring; 28-Supporting plate; 29-Pushing inclined surface structure; 111-Sleeve; 112-Extended rod; 113-Ball head; 114-Ring; 115-Anchor rod. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, an underwater flexible curtain construction equipment is suitable for connecting flexible curtains (including but not limited to impermeable curtains or permeable netting) to floating breakwaters or fixed structures (hereinafter collectively referred to as superstructure 1) on the sea or river. The equipment includes a curtain installation mechanism and a curtain restraint mechanism. The curtain installation mechanism is used to place the folded and stacked flexible curtain 4. The curtain restraint mechanism supports and restrains the curtain installation mechanism, keeping the folded flexible curtain in a folded and stacked state during the sinking process of the curtain installation mechanism. After the curtain installation mechanism is sunk to the seabed or riverbed, it can be released.

[0040] The curtain installation mechanism includes a bottom beam 10 and a top beam 3. A flexible curtain 4 is folded and stacked between the top beam 3 and the bottom beam 10. The top edge of the flexible curtain 4 is connected and fixed to the top beam 3, and the bottom edge is connected and fixed to the bottom beam 10. The curtain restraint mechanism includes several fixed steel sleeves 7 fitted around the curtain installation mechanism. The fixed steel sleeves 7 restrain the bottom beam 10, the top beam 3, and the flexible curtain 4, forming a whole. The fixed steel sleeves 7 and the top beam 3 are each equipped with lifting lugs 9 for installing mooring cables. The fixed steel sleeves 7 and the top beam 3 are each connected to the upper structure above water via mooring cables 2. The curtain installation mechanism and the curtain restraint mechanism, which are restrained as a whole, are gradually lowered to the seabed by the upper structure 1 via the mooring cables 2. After the curtain installation mechanism is lowered into place and the curtain restraint mechanism releases the curtain installation mechanism, the top beam 3 is pulled up via the corresponding mooring cable 2 to unfold the folded flexible curtain 4. Preferably, the mooring cables 2 of the top beam 3 are arranged symmetrically on both sides.

[0041] In this invention, the top beam 3 preferably adopts a cuboid or cylindrical structure, with the same length as the upper structure 1. The top beam 3 can be a one-piece or segmented structure. If segmented connection is used, it is necessary to ensure that each connection node is a rigid connection to maintain the rigidity of the top beam during construction. The top beam 3 is hollow inside, with several non-connected water cavities arranged along its length. Each water cavity is filled with water, and each water cavity is independently matched with a drainage device 5. The water cavities are provided with corresponding water inlets and outlets. The water inlet is preferably located on the top surface of the top beam. Water is injected into the water cavity through the water inlet, which is matched with a plug. After water injection, the water inlet is sealed with the plug. The drainage device can be a drainage pump, which pumps the water in the water cavity out through the drainage outlet.

[0042] Multiple levels 6 are installed along the length of the top beam 3. These levels 6 are connected to a controller, which in turn is connected to a display. When the top beam is pulled up, the display shows the buoyancy of the top beam 3 in the water. Initially, the top beam 3 is filled with water, facilitating the overall submersion of the equipment to the seabed or riverbed. After construction is completed and the fixing steel sleeve 7 is retrieved, the liquid inside the top beam 3 can be drained through the drainage device 5, reducing its weight and making it easier to pull up. The upward movement of the top beam 3 will cause the flexible curtain 4 to unfold. During the upward movement of the top beam 3, the levels 6 transmit the measured inclination angle of the top beam to the controller, which controls the lifting speed of the mooring cables 2 in each area of ​​the top beam 3, aiming to keep the top beam 3 as level as possible during upward movement. For example, each mooring cable 2 is independently equipped with a winch for cable winding. Each winch is connected to a controller, as is the drainage system. Based on information from the level, the controller controls the drainage speed of the water chambers in different areas of the top beam 3 and the lifting speed of the mooring cables 2 to adjust the inclination of the top beam 3, ensuring it floats as horizontally as possible. Once the top beam 3 has risen close to the upper structure 1, it is connected and fixed to the upper structure 1, completing the construction of the flexible curtain.

[0043] The bottom beam 10 is a rectangular beam structure, which can be made of concrete or steel. To adapt to uneven seabeds or riverbeds, the bottom beam 10 preferably adopts a split structure, which includes several bottom beam segments, and each pair of adjacent bottom beam segments is connected by a telescopic rod 11 and a flexible material 12. Each bottom beam segment is connected to a flexible curtain 4, which is folded and stacked on the bottom beams. A fixing steel sleeve 7 is installed at the position of each bottom beam segment to ensure the constraint of the curtain installation mechanism.

[0044] The connection structure between each two adjacent bottom beam segments is as follows: Figure 5 , Figure 1 As shown, where Figure 5 The top view of the structure shows four telescopic rods 11, symmetrically arranged in pairs at the left and right ends of the opposite cross-sections of adjacent bottom beam sections. The four telescopic rods 11 are positioned between the four corner points of the opposite end faces of two adjacent bottom beam sections. Flexible material 12 is filled between the two sets of telescopic rods 11. The flexible material 12 can be bonded and fixed to the end faces of the bottom beam sections. Adjacent bottom beam sections are connected by the four telescopic rods and the flexible material 12. Preferably, the top surface and bottom surface of the flexible material 12 are flush with the top surface and bottom surface of the bottom beam 10. The flexible material 12 is preferably corrosion-resistant rubber, possessing good ductility, high tensile strength, and a certain degree of corrosion resistance.

[0045] The telescopic rod 11 includes a sleeve 111, two outriggers 112, a ball head 113, a collar 114, and an anchor rod 115. The two outriggers 112 are coaxial and located on the front and rear sides of the sleeve 111. The sleeve 111 is a cylindrical structure with both ends sealed by end plates. The inner ends of the two outriggers 112 are movably inserted into the sleeve 111 through the sealed ends of the sleeve. The inner ends of the two outriggers are connected by a fourth spring 116. The other ends of the two outriggers 112 are fixed to the corresponding bottom beam segments by ball joints, thus connecting the two bottom beam segments. The ball joint connection structure is a common connection structure. For example, the following structure can be used: the ball head 113 is fixedly connected to the outrigger 112. The ball head 113 is placed inside the collar 114. The collar 114 is a hollow hemisphere that allows the ball head 113 to rotate within it. The collar 114 is fixedly connected to the bottom beam 10 by the anchor rod 115.

[0046] In this telescopic rod structure, the inner ends of the two outriggers 112 are respectively provided with abutments. The abutment is a convex ring structure protruding from the circumference of the outrigger, and its diameter is larger than the diameter of the outrigger 112. The sleeve 111 constrains the rotational deformation between the outriggers 112 on the one hand, and limits the relative distance between the outriggers 112 on the other hand: when the distance between the outriggers is too large, the sealing plate of the sleeve 111 will restrict the displacement of the abutment.

[0047] The advantages of using the above-mentioned connection structure between two adjacent bottom beam segments are as follows: when the adjacent bottom beam segments rotate slightly or there is a vertical height difference, the corresponding telescopic rod 11 can extend / retract accordingly, preventing the bottom beam 10 from being damaged due to excessive force. Furthermore, the telescopic rod 11 has limiting and self-resetting functions, preventing a bottom beam 10 from being unable to self-reset due to temporary misalignment caused by construction errors.

[0048] Each bottom beam segment is equipped with a fixing structure to secure it to the riverbed or seabed. The fixing structure is preferably a suction bucket foundation, which includes a downward-facing cylindrical body 14. The top of the cylindrical body 14 is positioned inside the bottom beam 10. A groove is created on the bottom surface of the bottom beam 10, and the top of the cylindrical body 14 is fitted into the groove. A drainage outlet is provided at the top of the cylindrical body 14. Outer flanges 13 are provided on the side of the bottom beam, each with drainage holes. A drainage channel connects the outer flanges 13 and the bottom beam, linking the drainage holes of the outer flanges 13 to the drainage outlet of the cylindrical body 14. After the bottom beam 10 is lowered, a vacuum device can be used to drain the water from the cylindrical body 14, creating a negative pressure within it, causing it to sink to the seabed or riverbed and thus securing the bottom beam 10. The structure and principle of the suction bucket foundation are described in the current underwater construction suction pile technology and will not be detailed here.

[0049] The extended wing plate 13 can be integrally formed with the bottom beam 10 or it can be separate from the bottom beam 10, but a reliable connection between the bottom beam 10 and the extended wing plate 13 must be ensured.

[0050] The fixed steel sleeve 7 is a rectangular sleeve structure, including a top plate and two opposite side plates 71. Each side plate 71 has a base plate at its bottom end. The two base plates have different lengths, with the longer base plate being called the long base plate 72. Due to the different lengths of the two base plates, the joint between them is offset from the vertical plane containing the central axis of the fixed steel sleeve 7. The top plate of the fixed steel sleeve 7 abuts against the top beam 3 of the curtain installation mechanism. A support plate 28 is provided on the inner side of each of the two side plates 71. The curtain installation mechanism is supported by the two support plates 28. Figure 4 As shown, in the initial state, the fixed steel sleeve can fix the bottom beam 10, the top beam 3 and the folded flexible curtain 4 into a whole, which prevents the folded flexible curtain 4 from unfolding to the side during the sinking process, facilitates the sinking construction and improves the sinking position accuracy.

[0051] The tops of the two side plates 71 of the fixed steel sleeve 7 are each hinged to the top plate by a pin 25, as shown. Figure 1As shown, the two side panels 71 can rotate around their respective pins 25. When the two side panels 71 rotate upwards around their pins, they open, i.e., the fixing steel sleeve 7 opens, releasing the curtain installation mechanism. An opening and closing device is provided at the bottom of the fixing steel sleeve 7, controlling the opening and closing of the two side panels 71: when the two side panels are closed, the fixing steel sleeve 7 is closed to support and constrain the curtain installation mechanism; when the two side panels are open, the fixing steel sleeve 7 opens to release the curtain installation mechanism.

[0052] Opening and closing devices such as Figure 4 As shown, the system includes a first spring 16, a limiting plate 17, a probe rod 18, and a connecting rod 19. Two first springs 16 and two limiting plates 17 are respectively provided and fixed to the inner sides of two side plates 71. The first spring 16 is located above the limiting plate 17, and its position corresponds to the bottom beam 10. The limiting plate 17 is preferably a T-shaped plate, with its two flanges fixed to the side plates 71 and its web extending into the fixed steel sleeve 7. The probe rod 18 is located below the long bottom plate 72. The top of the probe rod 18 is connected to the connecting rod 19. The connecting rod 19 passes upward through the long bottom plate 72 and extends into the fixed steel sleeve 7. A horizontal plate 23 is provided at the top of the connecting rod 19. The bottom of the horizontal plate 23 is connected to the long bottom plate 72 via a second spring 26. The second spring 26 pulls down the horizontal plate 23, making it tightly adhere to the two limiting plates 17. When the probe rod 18 drives the connecting rod 19 to move upward, the second spring 26 provides a downward reaction force to prevent the opening and closing device from being triggered due to temporary contact.

[0053] The horizontal plate 23 has vertically downward-pointing insertion rods 24 on its left and right ends, with the insertion rods 24 and two limiting plates 17 facing each other. The limiting plates 17 have holes corresponding to the insertion rods 24, and the insertion rods 24 can be inserted into the holes of the limiting plates 17 to lock and fix the positions of the two side plates 71 of the fixing steel sleeve 7. At this time, the two side plates 71 are in a closed state, so that the fixing steel sleeve 7 constrains and fixes the curtain installation mechanism. At this time, the first spring 16 is compressed between the side plate 71 and the bottom beam 10.

[0054] The probe rod 18 can move up and down, triggering the opening and closing device when it is lifted to a specific height. During construction, when the suction bucket foundation and the bottom beam 10 sink to a certain position, the probe rod 18 contacts the seabed or riverbed; subsequently, as the bottom beam 10 gradually sinks, the probe rod 18 is gradually lifted, causing the horizontal plate 23 to move upward until the insertion rod 24 of the horizontal plate 23 disengages from the hole of the limiting plate, releasing its locking effect on the two side plates 71 of the fixed steel sleeve 7. Under the action of the first spring 16, the two side plates are sprung open, and the two side plates 71 rotate upward around their respective pins 25. The two side plates 71 open and disengage from the bottom beam 10 and the top beam 3, releasing their constraint on the curtain installation mechanism and releasing the curtain installation mechanism. Subsequently, the fixed steel sleeve 7 can be pulled up and retracted by the top tethering cable 2. After the fixed steel sleeve 7 is retracted, the drainage and floating process of the top beam 3 will begin: the drainage device 5 will drain the liquid inside the top beam 3 and control the top beam 3 to float up in conjunction with the tethering cable 2 of the top beam 3, so that the flexible curtain 4 will gradually unfold. After the top beam 3 is fixed to the upper structure 1, the installation of the flexible curtain 4 can be completed.

[0055] Stiffening rods 8 are arranged between the fixed steel sleeves 7. The fixed steel sleeves are connected and fixed by the stiffening rods 8. On the one hand, the constraint effect of the fixed steel sleeves 7 on the folding flexible curtain 4 is improved and the overall structural rigidity is increased. On the other hand, it can ensure that each fixed steel sleeve 7 opens and closes at the same time, which is convenient for the recycling of the fixed steel sleeves and can prevent a fixed steel sleeve from opening prematurely due to construction deviation / impact.

[0056] An extended end 15 is provided on the bottom surface of the long base plate 72. The extended end 15 is a U-shaped plate structure with the opening facing upwards. A retaining plate 21 is inserted into each of the two plate walls of the extended end 15. The two retaining plates 21 are symmetrical. Fixed wing plates 20 are provided on the upper and lower surfaces of the retaining plates 21. The fixed wing plates 20 are connected to the plate walls of the extended end by a third spring 27. The tip of the probe rod 18 extends into the extended end 15. Two positioning plates 22 are fixed to the tip of the probe rod 18. The two positioning plates 22 correspond to the two retaining plates 21 and are located below the retaining plates 21. The positioning plates 22 and retaining plates 21 cooperate to form a pushing inclined surface structure 29. The inclined surface of the positioning plate 22 is set upwards, while the inclined surface of the retaining plate 21 is set downwards. During the process of the probe rod 18 being lifted, the two positioning plates 22 rise simultaneously. Under the action of the pushing inclined surface structure 29, the two retaining plates 21 are gradually pushed outwards from the extended end 15. At this time, the third spring 27 is compressed. When the bottom surface of the positioning plate 22 moves to a position higher than the top surface of the clamping plate 21, the clamping plate 21 rebounds under the action of the third spring 27. At this time, the clamping plate 21 constrains the positioning plate 22 to move downward, which in turn constrains the probe rod 18 to move downward.

[0057] The advantages of the underwater flexible curtain construction equipment described in this embodiment are: it is the first to propose a bottom-up floating deployment scheme for flexible curtains and a first to propose a connection foundation for flexible curtains to uneven seabeds. Compared with traditional schemes, it can improve the degree of mechanization of construction, reduce the amount of manual labor, avoid large deviations and deformations of flexible curtains due to waves and ocean currents during installation, and significantly improve construction accuracy.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An underwater flexible curtain construction equipment, characterized in that: include: The curtain installation mechanism includes a bottom beam (10) and a top beam (3). The flexible curtain (4) is folded and stacked between the bottom beam (10) and the top beam (3). The top edge of the flexible curtain (4) is fixed to the top beam (3) and the bottom edge is fixed to the bottom beam (10). The curtain restraint mechanism includes several fixed steel sleeves (7) fitted outside the curtain installation mechanism, and a support plate (28) is provided on the side plate (71) of the fixed steel sleeve (7) to support the curtain installation mechanism; The fixed steel sleeve (7) is a split structure, with its two side plates (71) connected relative to each other at the top. The bottom of the fixed steel sleeve (7) is provided with an opening and closing device, which controls the opening and closing of the two side plates (71): when the two side plates are closed, the fixed steel sleeve (7) supports and constrains the curtain installation mechanism; when the two side plates are open, the fixed steel sleeve (7) releases the curtain installation mechanism. The fixed steel sleeve (7) and the top beam (3) are each connected to the upper structure set on the water by the mooring cable (2); The opening and closing device includes: A first spring (16) is provided on the inner side of each of the two side plates (71), and the first spring (16) is compressed between the bottom beam (10) and the side plate (71); A horizontal plate (23) and a probe rod (18) are provided. The horizontal plate (23) is located inside the fixed steel sleeve (7) and directly below the bottom beam (10). Insert rods (24) are vertically downward on the left and right ends of the horizontal plate (23). Limiting plates (17) are provided on the inner sides of the two side plates (71). The insert rods (24) are inserted downward into the limiting plates (17). The probe rod (18) is located below the fixed steel sleeve (7). The probe rod (18) is connected to the horizontal plate (23) through a connecting rod (19). One of the side plates (71) has a long base plate (72) at its bottom end, and the connecting rod (19) extends out of the long base plate (72); A second spring (26) is provided between the horizontal plate (23) and the long bottom plate (72), and the second spring (26) pulls down the horizontal plate (23) so that it is in close contact with the limiting plate (17); The bottom surface of the long base plate (72) is provided with an extended end (15). The extended end (15) is a U-shaped plate structure with the opening facing upward. Each of its two plate walls is movably fitted with a clamping plate (21). The two clamping plates (21) are symmetrical, and a third spring (27) is provided between the clamping plate (21) and the inner side of the plate wall. The top end of the probe rod (18) is inserted into the extended end (15). The top end of the probe rod (18) is provided with two positioning plates (22) corresponding to the two clamping plates (21). The positioning plates (22) are located below the clamping plates (21), and a push-up inclined structure (29) is provided between the positioning plates (22) and the clamping plates (21).

2. The underwater flexible curtain construction equipment according to claim 1, characterized in that: Several of the fixed steel sleeves (7) are connected to each other by stiffening rods (8).

3. The underwater flexible curtain construction equipment according to claim 1, characterized in that: The bottom beam (10) is provided with several suction bucket foundations along its length, and the bottom beam is fixed to the seabed or riverbed through the suction bucket foundations.

4. The underwater flexible curtain construction equipment according to claim 3, characterized in that: The bottom beam (10) is a split structure, including several bottom beam segments, each of which is equipped with a fixed steel sleeve (7) and a suction bucket foundation.

5. The underwater flexible curtain construction equipment according to claim 4, characterized in that: The two adjacent bottom beam sections are connected by four telescopic rods (11). The four telescopic rods (11) are arranged in pairs and symmetrically on the left and right sides of the two bottom beam sections, and the two telescopic rods in each pair are arranged one above the other. The telescopic rod includes a sleeve (111) and two extension rods (112). The two extension rods (112) are respectively located on the front and rear sides of the sleeve (111), and the inner ends of the two extension rods (112) are respectively movably inserted into the sleeve (111). The inner ends of the two extension rods (112) are connected by a fourth spring (116), and the outer ends of the two extension rods (112) are respectively installed on the two bottom beam sections through a ball joint structure. Two extension rods (112) are respectively provided with abutments at one end of the extension rods (111) that extend into the sleeve (111).

6. The underwater flexible curtain construction equipment according to claim 5, characterized in that: Each pair of adjacent bottom beam segments is filled with flexible material (12) between the two sets of telescopic rods, and the flexible material (12) connects the two bottom beam segments.

7. The underwater flexible curtain construction equipment according to claim 1, characterized in that: The top beam (3) is a hollow structure: several water cavities are set along its length without being connected. Each water cavity is filled with water, and each water cavity is independently matched with a drainage device. A level (6) is installed on the top beam (3).

Images