Underwater leveling mechanism

Abstract

The utility model relates to the technical field of underwater foundation bed construction, in particular to an underwater leveling mechanism which comprises a leveling frame, a material distributing device and a discharging rod, the discharging rod is installed on the material distributing device, the material distributing device moves on the leveling frame so as to drive the discharging rod to move in the leveling frame, stone enters the leveling frame through the discharging rod, and the leveling frame is driven by the discharging rod to move. The device further comprises an elevation adjusting mechanism, the elevation adjusting mechanism comprises a casing pipe and a telescopic rod, the casing pipe is arranged at a discharging port of the discharging rod in a sleeving mode, the telescopic rod drives the casing pipe to move in the length direction of the discharging rod, and therefore the height of the discharging port of the discharging rod is adjusted. And the height of the stone layer is adjusted by adjusting the height of the discharging opening, so that the stone layer paving machine is suitable for paving the stone layers with different design elevations, is simple and convenient to operate and high in efficiency, and also avoids potential safety hazards of underwater operation of personnel.

Description

Technical Field

[0001] This utility model relates to the field of underwater foundation construction technology, and in particular to an underwater leveling mechanism. Background Technology

[0002] In underwater immersed tunnel and caisson projects, leveling the stone foundation is a crucial construction step. Currently, the main leveling equipment can be categorized into submersible underwater leveling machines, platform-type leveling vessels (machines), and floating leveling vessels. Platform-type leveling vessels (machines) are typically large, with high manufacturing, transportation, and maintenance costs. Furthermore, their outriggers require stringent foundation conditions during construction; in complex geological conditions or uneven surfaces, the stability of the outriggers is difficult to guarantee, easily affecting the accuracy and efficiency of the leveling operation. Floating leveling vessels, on the other hand, are severely constrained by the hydrological environment. Waves and frequent water level fluctuations cause the vessel to sway, making equipment positioning and leveling accuracy control extremely challenging during construction, increasing construction difficulty and risk, and failing to meet the demands of high-precision construction.

[0003] Currently used underwater leveling machines, such as the Chinese invention patent with publication number CN114991158A, disclose an underwater foundation leveling method. First, a leveling frame is laid underwater, and then stones are transported into the leveling frame through a feeding funnel. Then, divers are dispatched to level the stone layer in the leveling frame with a scraper. However, when multiple stone layer areas with different design elevations need to be laid, the above-mentioned method of leveling with a scraper is cumbersome and inefficient. Utility Model Content

[0004] The purpose of this utility model is to provide an underwater leveling mechanism to address the technical problem in the background art where the method of leveling with a scraper is cumbersome and inefficient when laying multiple stone layers at different design elevations.

[0005] This utility model provides an underwater leveling mechanism, including a leveling frame, a material spreading device, and a material feeding rod. The material feeding rod is installed on the material spreading device, and the material spreading device can move on the leveling frame.

[0006] It also includes an elevation adjustment mechanism, which includes a sleeve and a telescopic rod. The sleeve is fitted onto the discharge port of the feeding rod, and the telescopic rod is installed on the feeding rod. The telescopic rod is used to drive the sleeve to move along the length of the feeding rod.

[0007] The underwater leveling mechanism described in this application includes a leveling frame, a material placing device, and a material feeding rod. The material feeding rod is installed on the material placing device. The material placing device moves on the leveling frame, thereby driving the material feeding rod to move within the leveling frame. Stone material enters the leveling frame through the material feeding rod, and the material feeding rod moves within the leveling frame to lay stone layers. Furthermore, it also includes an elevation adjustment mechanism, which includes a sleeve and a telescopic rod. The sleeve is fitted at the outlet of the material feeding rod, and the telescopic rod drives the sleeve to move up and down along the length of the material feeding rod, thereby adjusting the height of the outlet of the material feeding rod. By adjusting the height of the outlet, the height of the stone layer can be adjusted to adapt to laying stone layers at different design elevations. It is simple to operate, highly efficient, and avoids the safety hazards of underwater operations for personnel.

[0008] Preferably, the elevation adjustment mechanism further includes a stroke sensor for measuring the extension and retraction of the telescopic rod.

[0009] The extension and retraction of the telescopic rod is measured by a stroke sensor, thereby monitoring the movement of the sleeve and accurately controlling the height of the discharge port to ensure that the height of the laid stone layer remains within the error range. This effectively controls the flatness of the stone layer. Based on the elevation benchmark and design requirements of different construction areas, the laying height and flatness of the stone layer are precisely controlled.

[0010] Preferably, the number of telescopic rods is not less than two.

[0011] Preferably, the stroke sensor is located between the two telescopic rods.

[0012] Preferably, it also includes telescopic outriggers, which are connected to the bottom of the leveling frame.

[0013] Preferably, the feeding rod includes a funnel, an assembly rod, and a discharge rod arranged from top to bottom;

[0014] The funnel is connected to the top of the assembly rod, the discharge rod is fixed on the fabric feeding device, and the bottom of the assembly rod is inserted into the top of the discharge rod.

[0015] Preferably, the fabric-making device includes a transverse moving trolley and a longitudinal moving trolley, the transverse moving trolley being mounted on the leveling frame and capable of moving laterally along the length of the leveling frame;

[0016] The longitudinal trolley is mounted on the transverse trolley, and the longitudinal trolley can move longitudinally along the length direction of the transverse trolley;

[0017] The feeding rod is mounted on the longitudinal trolley.

[0018] Preferably, the leveling frame is provided with a transverse track along its length, and the end of the transverse trolley is provided with a first traveling wheel, which is mounted on the transverse track.

[0019] Preferably, the transverse trolley is provided with a longitudinal track along its length, and the end of the longitudinal trolley is provided with a second traveling wheel, which is mounted on the longitudinal track.

[0020] Preferably, the transverse trolley is provided with a longitudinal groove, and the longitudinal track is located on both sides of the longitudinal groove;

[0021] The longitudinal trolley is located within the longitudinal groove, and the discharge port of the feeding rod passes through the longitudinal groove and extends downward.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] The underwater leveling mechanism described in this application includes a leveling frame, a material placing device, and a material feeding rod. The material feeding rod is installed on the material placing device. The material placing device moves on the leveling frame, thereby driving the material feeding rod to move within the leveling frame. Stone material enters the leveling frame through the material feeding rod, and the material feeding rod moves within the leveling frame to lay stone layers. Furthermore, it also includes an elevation adjustment mechanism, which includes a sleeve and a telescopic rod. The sleeve is fitted at the outlet of the material feeding rod, and the telescopic rod drives the sleeve to move up and down along the length of the material feeding rod, thereby adjusting the height of the outlet of the material feeding rod. By adjusting the height of the outlet, the height of the stone layer can be adjusted to adapt to laying stone layers at different design elevations. It is simple to operate, highly efficient, and avoids the safety hazards of underwater operations for personnel. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of the underwater leveling mechanism.

[0025] Figure 2 This is a longitudinal sectional view of the underwater leveling mechanism.

[0026] Figure 3 yes Figure 1 A magnified view of part A.

[0027] Figure 4 This is a schematic diagram of the elevation adjustment mechanism on the feed rod.

[0028] Figure 5 This is a top view of the underwater leveling mechanism.

[0029] Figure 6 yes Figure 5 A magnified view of section B.

[0030] Figure 7 yes Figure 5 A magnified view of a portion of point C.

[0031] Figure 8 This is a schematic diagram of the airtight drainage chamber of the leveling frame.

[0032] Marked in the image:

[0033] 1-Leveling frame, 11-Crossbeam, 12-Longitudinal beam, 2-Material distribution device, 21-Transverse trolley, 211-First traveling wheel, 212-Longitudinal groove, 22-Longitudinal trolley, 221-Second traveling wheel, 3-Discharge rod, 31-Function funnel, 32-Assembly rod, 33-Discharge rod, 34-Cover plate, 35-Baffle, 4-Elevation adjustment mechanism, 41-Sleeve, 42-Telescopic rod, 43-Stroke sensor, 6-Transverse track, 7-Longitudinal track, 8-Telescopic outrigger, 9-Measuring tower, 100-Air-sealed drainage chamber. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0035] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0037] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0038] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0039] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0040] Example 1

[0041] like Figures 1-7 As shown, an underwater leveling mechanism includes a leveling frame 1, a material placing device 2, and a material feeding rod 3. The material feeding rod 3 is mounted on the material placing device 2, and the material placing device 2 can move on the leveling frame 1.

[0042] It also includes an elevation adjustment mechanism 4, which includes a sleeve 41 and a telescopic rod 42. The sleeve 41 is fitted at the discharge port of the feeding rod 3, and the telescopic rod 42 is installed on the feeding rod 3. The telescopic rod 42 is used to drive the sleeve 41 to move along the length of the feeding rod 3.

[0043] like Figure 1As shown, the material feeding device 2 moves on the leveling frame 1, thereby driving the material feeding rod 3 to move within the leveling frame 1. Stone material enters the leveling frame 1 through the material feeding rod 3, and the material feeding rod 3 moves within the leveling frame 1 to lay the stone layer. Further, as... Figure 3 , Figure 4 As shown, the elevation adjustment mechanism 4 includes a sleeve 41 and a telescopic rod 42. The sleeve 41 is fitted at the discharge port of the feeding rod 3. The telescopic rod 42 drives the sleeve 41 to move up and down along the length of the feeding rod 3, thereby adjusting the height of the discharge port of the feeding rod 3. In turn, the height of the stone layer is adjusted by adjusting the height of the discharge port to adapt to the laying of stone layers at different design elevations. It is easy to operate, highly efficient, and avoids the safety hazards of underwater operations.

[0044] In this embodiment, the extension and retraction of the telescopic rod 42 drives the sleeve 41 to move, so that the sleeve 41 can move up and down in the length direction of the feed rod 3, thereby adjusting the discharge port height of the feed rod 3.

[0045] In an optional implementation, the number of telescopic rods 42 is not less than two.

[0046] In an optional embodiment, the telescopic rod 42 is a hydraulic cylinder. The base of the hydraulic cylinder is connected to the feed rod 3, and the piston rod of the hydraulic cylinder is connected to the sleeve 41. The extension and retraction of the piston rod drives the sleeve 41 to move.

[0047] In one or more embodiments, the elevation adjustment mechanism 4 further includes a stroke sensor 43, which is used to measure the extension and retraction of the telescopic rod 42.

[0048] The extension and retraction of the telescopic rod 42 is measured by the stroke sensor 43, thereby controlling the movement of the sleeve 41 and precisely adjusting the height of the discharge port to ensure that the height of the laid stone layer is kept within the error range, thus effectively controlling the flatness of the stone layer. Based on the elevation benchmark and design requirements of different construction areas, the laying height and flatness of the stone layer are precisely controlled.

[0049] In an optional embodiment, the stroke sensor 43 is disposed inside the telescopic rod 42. The body of the stroke sensor 43 is installed inside the telescopic rod 42, and the measuring end of the stroke sensor 43 is connected to the extended end of the telescopic rod 42. When the telescopic rod 42 is a hydraulic cylinder, the electronic housing of the stroke sensor 43 is installed inside the hydraulic cylinder, the measuring shaft of the stroke sensor 43 is slidably disposed inside the piston rod, and the magnetic ring of the stroke sensor 43 is installed on the piston of the piston rod.

[0050] In an optional implementation, the stroke sensor 43 is a hydraulic cylinder stroke sensor.

[0051] In an alternative embodiment, the stroke sensor 43 is located between the two telescopic rods 42.

[0052] In an optional embodiment, the stroke of the telescopic rod 42 can be selected as -500mm to +500mm, that is, the adjustment range of the telescopic rod 42 is -500mm to +500mm, and its model can be HSG-63 / 45-1000.

[0053] In one or more implementations, such as Figure 2 As shown, it also includes telescopic support legs 8, which are connected to the bottom of the leveling frame 1.

[0054] The height of the leveling frame 1 can be adjusted by setting telescopic outriggers 8. When carrying out underwater construction, or when diving and sitting on the bottom, the leveling frame 1 is placed on the bottom of the water. The telescopic outriggers 8 can flexibly adjust the support height and angle according to the underwater terrain and foundation conditions to ensure that the leveling frame 1 is stably placed on the bottom of the water.

[0055] Furthermore, the leveling frame 1 has a rectangular structure, and telescopic support legs 8 are provided at the four right corners of the leveling frame 1. The above design can effectively adapt to different geological conditions, distribute the weight of the leveling frame 1, reduce the pressure of the leveling frame 1 on the bottom foundation, and enhance the construction stability of the leveling frame 1.

[0056] In this embodiment, the telescopic outrigger 8 is a hydraulic outrigger, meaning that a hydraulic cylinder is installed inside the outrigger. The height of the outrigger is adjusted by the hydraulic cylinder. In this embodiment, the hydraulic outrigger configuration is as follows: the leveling frame 1 is equipped with 4 sets of hydraulic outriggers, with a rated load of 50t for each hydraulic cylinder and a stroke of 1.2m. During construction, the hydraulic outriggers can flexibly adjust the support height and angle according to the underwater terrain and foundation conditions, ensuring that the leveling frame 1 is stably placed on the underwater surface. Due to its strong load-bearing capacity and reasonable stroke design, it can effectively adapt to different geological conditions, distribute the weight of the leveling frame 1, reduce the pressure on the bottom foundation, and enhance the construction stability of the leveling frame 1.

[0057] In optional implementations, such as Figure 1 , Figure 2 As shown, it also includes a measuring tower 9, which is set at the four right angles of the leveling frame 1, and a GPS is installed on the top of the measuring tower 9.

[0058] During the leveling process of leveling frame 1, measuring tower 9 continuously monitors the attitude changes of leveling frame 1 and feeds them back to the control system to ensure that leveling frame 1 remains stable and level in complex underwater terrain and water flow environment, and meets the construction flatness requirements.

[0059] In one or more embodiments, as shown in 1, the feeding rod 3 includes a funnel 31, an assembly rod 32, and a discharge rod 33 arranged from top to bottom;

[0060] The funnel 31 is connected to the top of the assembly rod 32, the discharge rod 33 is fixed on the material distribution device 2, and the bottom of the assembly rod 32 is inserted into the top of the discharge rod 33.

[0061] Stones are received through funnel 31. After passing through funnel 31, assembly rod 32 and discharge rod 33, the stones enter the leveling frame 1. The assembly rod 32 is assembled from multiple single rod sections. When facing different water depths, the number and combination of rod sections can be flexibly adjusted to adapt to complex and ever-changing underwater construction environments, effectively improving the equipment's versatility and construction convenience.

[0062] The plug-in assembly method of the assembly rod 32 and the discharge rod 33 facilitates the installation and replacement of the assembly rod 32.

[0063] Furthermore, such as Figure 3 As shown, the bottom of the assembly rod 32 has a cover plate 34, and the top of the discharge rod 33 has a baffle 35. After the assembly rod 32 is inserted into the top of the discharge rod 33, the cover plate 34 and the baffle 35 abut against each other, thereby limiting the distance between the assembly rod 32 and the discharge rod 33.

[0064] In this embodiment, the discharge port of the feeding rod 3 is the bottom outlet of the feeding rod 33. Furthermore, the sleeve 41 is sleeved on the feeding rod 33, and the sleeve 41 moves up and down along the feeding rod 33 under the drive of the telescopic rod 42.

[0065] In this embodiment, the discharge port size of the feeding rod 3 is: The maximum height of the unloading rod 3 reaches 26.2m, which precisely meets the requirements for operations in water depths of up to 25m. Furthermore, the assembly rod 32 adopts a detachable multi-segment structure, which can flexibly adjust the number and combination of segments when facing different water depths, making it easy to adapt to complex and ever-changing underwater construction environments and effectively improving the equipment's versatility and construction convenience.

[0066] Example 2

[0067] like Figures 5-7 As shown, based on Embodiment 1, the underwater leveling mechanism described in this embodiment includes a material spreading device 2 comprising a transverse moving trolley 21 and a longitudinal moving trolley 22. The transverse moving trolley 21 is mounted on the leveling frame 1 and can move laterally along the length of the leveling frame 1.

[0068] The longitudinal trolley 22 is mounted on the transverse trolley 21, and the longitudinal trolley 22 can move longitudinally along the length of the transverse trolley 21;

[0069] The feeding rod 3 is installed on the longitudinal trolley 22.

[0070] Since the transverse trolley 21 can move laterally along the length of the leveling frame 1 and the longitudinal trolley 22 can move longitudinally along the length of the transverse trolley 21, and the unloading rod 3 is installed on the longitudinal trolley 22, the unloading rod 3 can move laterally and longitudinally along the leveling frame 1 under the combined drive of the transverse trolley 21 and the longitudinal trolley 22, so as to lay the stone layer.

[0071] In an optional embodiment, in this application, "lateral" refers to the length direction of the leveling frame 1, and "longitudinal" refers to the width direction of the leveling frame 1.

[0072] In optional implementations, such as Figure 5 As shown, the leveling frame 1 is provided with a transverse track 6 along its length, and the end of the transverse trolley 21 is provided with a first traveling wheel 211, which is installed on the transverse track 6.

[0073] In optional implementations, such as Figure 6 , Figure 7 As shown, the transverse trolley 21 is provided with a longitudinal track 7 along its length, and the longitudinal trolley 22 is provided with a second traveling wheel 221 at its end, which is mounted on the longitudinal track 7.

[0074] Both the transverse trolley 21 and the longitudinal trolley 22 are equipped with hydraulic motors, which drive the first traveling wheel 211 and the second traveling wheel 221 to roll. During construction, a crane ship is used to hoist the leveling frame 1. A hydraulic pump is installed on the crane ship. The hydraulic pump is connected to the hydraulic motor through hydraulic pipelines and supplies hydraulic oil to the hydraulic motor to drive the hydraulic motor to rotate.

[0075] Furthermore, such as Figure 5 As shown, the leveling frame 1 includes interconnected crossbeams 11 and longitudinal beams 12, and the transverse track 6 is set on the crossbeams 11;

[0076] In optional implementations, such as Figure 7 As shown, a longitudinal groove 212 is provided on the transverse trolley 21, and the longitudinal track 7 is located on both sides of the longitudinal groove 212;

[0077] The longitudinal trolley 22 is located within the longitudinal groove 212, and the discharge port of the feed rod 3 passes through the longitudinal groove 212 and extends downward.

[0078] The discharge port of the feeding rod 3 passes through the longitudinal groove 212 and extends downward into the leveling frame 1, so that the stone material is carried into the leveling frame 1 through the feeding rod 3 to implement the laying of the stone layer.

[0079] In an optional embodiment, the crossbeam 11 is selected The steel pipes and longitudinal beams 12 are made of steel pipes. The steel pipes, of which the length of the crossbeam 11 is 37720mm and the length of the longitudinal beam 12 is 18500mm. After the crossbeam 11 and the longitudinal beam 12 are assembled into the leveling frame 1, its transverse leveling length is 32800mm and its longitudinal leveling length is 14000mm.

[0080] Furthermore, the transverse trolley 21 moves freely laterally within the leveling frame 1, while the longitudinal trolley 22 moves flexibly longitudinally within the transverse trolley 21. The two work together to achieve a maximum leveling area of ​​32.8m × 14m per workstation, efficiently covering a large construction area, reducing the number of times equipment needs to be moved, and improving construction efficiency.

[0081] In an optional embodiment, the transverse track 6 has an arched section in the middle. The transverse track 6 installed on the crossbeam 11 is designed to be arched with an arch height of 40mm. During the material laying process, the crossbeam 11 will generate a slight disturbance due to the change in the weight distribution of the material. The arched transverse track 6 can cleverly partially offset this disturbance, ensuring that the transverse trolley 21 moves smoothly and steadily, reducing equipment wear and energy consumption, and improving the accuracy and efficiency of material laying.

[0082] Furthermore, the arching section is located in the middle of the transverse track 6, and the length of the arching section is designed according to actual needs.

[0083] In optional implementations, such as Figure 8 As shown, the leveling frame 1 includes a crossbeam 11 and a longitudinal beam 12, and both the crossbeam 11 and the longitudinal beam 12 are equipped with an airtight drainage chamber 100.

[0084] Three airtight drainage chambers 100 are arranged on a single crossbeam 11, and two airtight drainage chambers 100 are arranged on a single longitudinal beam 12, for a total of 10 airtight drainage chambers 100 in the entire leveling frame 1. Each airtight drainage chamber 100 has two drainage outlets at the bottom and one exhaust valve at the top. During the launching and lifting of the leveling frame 1, the airtight drainage chambers 100 can effectively adjust buoyancy and drainage performance, facilitating the sinking and recovery of the leveling frame 1, and improving construction safety and convenience. Furthermore, a crane boat is set up on the water surface, and an air compressor is installed in the crane boat. The air compressor is connected to the airtight drainage chambers 100 through air pipes. The air pressure of the airtight drainage chambers 100 is adjusted by the air compressor to adjust the drainage volume of the airtight drainage chambers 100, thereby adjusting the buoyancy of the airtight drainage chambers 100.

[0085] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An underwater leveling mechanism, characterized in that, It includes a leveling frame (1), a fabric spreading device (2) and a feeding rod (3), wherein the feeding rod (3) is mounted on the fabric spreading device (2) and the fabric spreading device (2) is movable on the leveling frame (1); It also includes an elevation adjustment mechanism (4), which includes a sleeve (41) and a telescopic rod (42). The sleeve (41) is sleeved at the discharge port of the feed rod (3), and the telescopic rod (42) is installed on the feed rod (3). The telescopic rod (42) is used to drive the sleeve (41) to move along the length of the feed rod (3).

2. The underwater leveling mechanism according to claim 1, characterized in that, The elevation adjustment mechanism (4) also includes a stroke sensor (43) for measuring the extension and retraction of the telescopic rod (42).

3. The underwater leveling mechanism according to claim 2, characterized in that, The number of telescopic rods (42) shall not be less than two.

4. The underwater leveling mechanism according to claim 3, characterized in that, The stroke sensor (43) is located between the two telescopic rods (42).

5. The underwater leveling mechanism according to claim 1, characterized in that, The feeding rod (3) includes a funnel (31), an assembly rod (32), and a discharge rod (33) arranged from top to bottom; The funnel (31) is connected to the top of the assembly rod (32), the discharge rod (33) is fixed on the fabric distribution device (2), and the bottom of the assembly rod (32) is inserted into the top of the discharge rod (33).

6. The underwater leveling mechanism according to claim 5, characterized in that, The assembly rod (32) has a cover plate (34) at the bottom and the discharge rod (33) has a baffle (35) at the top. The cover plate (34) and the baffle (35) abut against each other.

7. The underwater leveling mechanism according to claim 6, characterized in that, The sleeve (41) is fitted onto the discharge rod (33).

8. An underwater leveling mechanism according to any one of claims 1-7, characterized in that, The fabric device (2) includes a transverse trolley (21) and a longitudinal trolley (22). The transverse trolley (21) is mounted on the leveling frame (1) and can move laterally along the length of the leveling frame (1). The longitudinal trolley (22) is mounted on the transverse trolley (21), and the longitudinal trolley (22) can move longitudinally along the length direction of the transverse trolley (21); The feeding rod (3) is installed on the longitudinal trolley (22).

9. An underwater leveling mechanism according to claim 8, characterized in that, The leveling frame (1) is provided with a transverse track (6) along its length, and the transverse trolley (21) is provided with a first traveling wheel (211), which is mounted on the transverse track (6). The transverse trolley (21) is provided with a longitudinal track (7) along its length, and the longitudinal trolley (22) is provided with a second traveling wheel (221), which is mounted on the longitudinal track (7).

10. An underwater leveling mechanism according to claim 9, characterized in that, The transverse trolley (21) is provided with a longitudinal groove (212), and the longitudinal track (7) is located on both sides of the longitudinal groove (212); The longitudinal trolley (22) is partially located in the longitudinal groove (212), and the discharge port of the feed rod (3) passes through the longitudinal groove (212) and extends downward.

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