Full-automatic offshore floating ball collecting and releasing device and working method thereof

Abstract

The invention discloses a full-automatic offshore floating ball collecting and releasing device and a working method thereof, and belongs to the technical field of offshore floating ball transferring. The device comprises an electric roller way, a laying platform, a motor, a supporting frame and the like, the electric roller way can be driven by the motor to rotate forwards and backwards, and full-automatic laying, recycling and transportation of floating balls are achieved in cooperation with the laying platform under the condition that manpower assistance is not needed. The whole electric roller way is designed to be in a spiral upward shape, and more floating balls are stored in a limited space. Large floating balls can be fully automatically recycled and stably stored in an ocean platform environment, and the speed and the position of the floating balls can be controlled without human assistance, so that the floating balls are safely transported to a release position and are sequentially released.

Description

Technical Field

[0001] The invention relates to a fully automatic offshore floating ball retracting and deploying device and a working method thereof, and belongs to the technical field of offshore floating ball transportation. Background Art

[0002] Offshore buoys play a vital role in marine engineering and construction. They can be used to mark construction sites and determine the driving points for foundation piles, providing an accurate positioning reference for construction. They can also serve as mooring buoys, securing offshore platforms, ships, buoys, cables, and other objects, keeping them stable at sea and protecting them from wind, waves, and currents.

[0003] Deploying and recovering buoys at sea requires the use of vessels and other means of transportation, as well as specialized operators and equipment, resulting in high transportation and labor costs. Deployment and recovery are particularly challenging and costly in deep or remote waters. During the recovery process, operator safety must be ensured to avoid accidents. Use appropriate tools and equipment, such as winches and cranes, and strictly follow operating procedures. When retrieving the buoy by hooking the cable, pay attention to force and direction to prevent cable breakage or loss of control of the buoy.

[0004] The "heart"-shaped buoy on the offshore platform structure is made of elastic material, with a diameter of about 1 meter. Its shape is not a regular circle, but a "heart" shape, with a hook ring on the tip of the buoy. Due to the shape restrictions of this type of irregular circular buoy, and the limited size of the offshore platform placement site, the humid and shaking marine environment, etc., conventional transportation methods are difficult to achieve the deployment, transportation and recovery of this type of buoy. Summary of the Invention

[0005] In response to the above problems, the present invention provides a fully automatic offshore buoyancy collection and release device, which can realize the storage and smooth and orderly release of large buoys on the offshore platform under the condition that the main body has no power, and can also achieve fully automatic recovery.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] The fully automatic offshore floating ball retracting and releasing device includes a support frame that supports an electric roller conveyor. The electric roller conveyor includes a straight roller conveyor, a spiral roller conveyor, and a flat roller conveyor. The roller conveyor head end is arranged at one end of the straight roller conveyor, and the other end of the straight roller conveyor is connected to the spiral roller conveyor. The spiral roller conveyor spirally rises from low to high. The other end of the spiral roller conveyor is connected to one end of the flat roller conveyor, and the other end of the flat roller conveyor is the roller conveyor tail end. The height of the roller tail end is higher than the height of the roller head end. A floating ball placement platform is arranged at the center of the spiral roller conveyor. The inclination angle of the straight roller conveyor is 4°-7°, the helix angle of the spiral roller conveyor is 4°-7°, and the flat roller conveyor is arranged horizontally without an inclination angle.

[0008] The straight roller, spiral roller and flat roller all adopt a roller structure. In the roller structure, two roller brackets are symmetrically arranged on the roller keel. A chute for the float to move is formed between the two roller brackets. Roller rollers driven by a motor are evenly distributed on the roller brackets. The roller brackets are inclined at 120°-150° with the bottom surface of the roller.

[0009] A float placing platform is provided at the head end of the roller conveyor, an intermittent placing plate is provided on the platform bottom plate through a placing platform support, the intermittent placing plate is provided on the placing platform support through a placing platform rotating shaft, one side of the placing platform rotating shaft is a limiting end, and the other side is a placing end; the weight of the limiting end is greater than the weight of the placing end, and the weight of the placing end and the float carrier with the float is greater than the weight of the limiting end; the intermittent placing plate rotates around the axis according to the different weights on both sides of the placing platform rotating shaft to realize intermittent placing of the float; an adjusting plate support is provided on the back side of the adjusting plate in the placing end, and a placing inclined surface is provided on the outer end of the adjusting plate; a platform roller is provided on the adjusting plate;

[0010] The device also includes a floating ball carrier for transporting the floating ball, and the inclined surface of the carrier at the bottom acts on the roller of the roller table.

[0011] Roller side guardrails for limiting floating balls are arranged on both sides of the straight roller conveyor, spiral roller conveyor and flat roller conveyor; and top steel pipes are arranged above the straight roller conveyor, spiral roller conveyor and flat roller conveyor.

[0012] A deceleration curtain for reducing the speed of the floating ball is arranged above the electric roller.

[0013] A roller conveyor head end straight stop bar and a roller conveyor head end U-shaped stop bar are arranged at the roller conveyor head end.

[0014] The carrier oblique section of the float carrier is covered with rubber, and the inclination angle of the carrier oblique section is the same as the inclination angle of the roller of the roller table.

[0015] The working method of the fully automatic offshore floating ball retracting and deploying device includes the following steps:

[0016] S1. Automatically stacking the float ball:

[0017] Place the floats in the float carrier and put it into the device from the lowest roller head end of the straight roller conveyor. The carrier's beveled surface fits on the roller of the roller conveyor. Turn on the motor to reverse the direction to make the roller of the roller conveyor rotate in the opposite direction. The floats will be transported to the tail end of the spiral roller conveyor along with the carrier and stacked in sequence until all the floats are stacked.

[0018] S2. Storage of float:

[0019] The floating balls are stored on the straight roller and spiral roller. When storing, the straight stop bar at the head end of the roller and the U-shaped stop bar at the head end of the roller are closed.

[0020] S3. Transportation of float:

[0021] During transportation, first open the roller conveyor head end straight stop lever at the roller conveyor head end, start the motor, and make the rollers arranged on the roller bracket rotate smoothly, so that the floats are transported downward in sequence along with the float carrier to the float placement platform;

[0022] S4. Float deployment:

[0023] After the float carrier is transported to the float placement platform, it continues to be pushed by the roller to cross the limit end and the placement platform shaft. When the float carrier moves to the placement end, the sum of the weight of the float carrier with the float and the placement end is greater than the weight of the limit end. The limit end automatically tilts up, reaches the upper limit position and presses against the next float carrier to stop it from moving; turns off the motor, and the U-shaped baffle at the head end of the roller stops the float carrier and the float from moving; the staff adjusts the position of the float carrier by adjusting the platform roller on the plate to complete the connection between the float and the target object, lifts the U-shaped baffle at the head end of the roller, tilts the carrier toward the downstream direction, and the float falls into the water. The float carrier is removed and stored for standby use; then the limit end falls freely, contacts the inner surface of the roller keel, and reaches the lower limit position; repeats the above float placement steps to complete the placement of all floats.

[0024] Specifically, the decoration includes a support frame, a straight roller and a spiral roller. The spiral roller extends upward in a spiral shape at a fixed angle. There are two layers in total. In order to control the overall height of the device, the tail end of the upper roller no longer rises and is designed as a horizontal roller. The straight roller is set at the tail end of the lower roller of the spiral roller.

[0025] The straight roller conveyor and spiral roller conveyor both adopt a roller conveyor structure. In the roller conveyor structure, two roller brackets are symmetrically arranged on the roller keel. A chute for the floating ball carrier to move is formed between the two roller brackets. Rollers are evenly distributed on the roller brackets, and the roller brackets are inclined at 120°-150° with the horizontal plane.

[0026] A floating ball placing platform is provided at the head end of the straight roller conveyor. The placing platform support of the floating ball placing platform is provided on the platform plate. The limiting end and the placing end are fixed as one body. The two ends of the placing platform rotating shaft are provided in the placing platform support. The limiting end and the placing end rotate with the placing platform rotating shaft as the axis. The weight of the limiting end is greater than the weight of the placing end, and the weight of the limiting end is less than the sum of the weight of the placing end and one floating ball.

[0027] The roller conveyor head end is provided with a roller conveyor head end straight stop bar and a roller conveyor head end U-shaped stop bar;

[0028] The device also includes a float ball carrier for transporting the float ball.

[0029] Furthermore, a top steel pipe is provided above the straight roller conveyor and the spiral roller conveyor, and the top steel pipe is provided on the top of the support frame. The side walls of the straight roller conveyor and the spiral roller conveyor are provided with roller side guardrails for limiting floating balls.

[0030] Furthermore, a deceleration curtain is provided on the straight roller conveyor and the spiral roller conveyor.

[0031] Furthermore, a float ball placement platform is provided at the head end of the straight roller conveyor, an adjustment plate is provided above the float ball placement platform at the head end of the straight roller conveyor, and a platform roller is provided on the adjustment plate.

[0032] Furthermore, the float carrier is made of a lightweight hollow material, the bottom shape fits the angle of the roller, and the bottom layer is covered with rubber, which can increase the friction with the roller surface.

[0033] The beneficial effects of the present invention are:

[0034] The device includes an electric roller conveyor, a float placing platform, a support frame and a float carrier. The electric roller conveyor is equipped with rollers and cooperates with the float carrier to perform fully automatic transportation of the float under electric drive.

[0035] The floats are placed in a float carrier and lowered into the device from the lowest end of the straight roller conveyor. The carrier's beveled surface fits against the rollers. The motor is turned in reverse, causing the rollers to rotate in the opposite direction. The floats are then transported along the carrier to the tail end of the spiral roller conveyor, where they are stacked sequentially until all the floats are stacked. This method allows for the recovery of floats over one meter tall, eliminating the need for overhead tools such as winches and cranes, ensuring operator safety.

[0036] The coordination of the roller in this device with the top steel pipe, roller side guardrail, U-shaped guardrail at the head end of the roller, and straight guardrail at the head end of the roller ensures that the float is safe and does not fall during transportation. In order to prevent the float from accidentally rolling out of the electric roller during storage and transportation, roller side guardrails are installed on both sides of the electric roller. In addition, in order to facilitate adjustments when the system is not running smoothly, the roller side guardrails are set in different areas and are easy to disassemble. Considering the waves and bumps during sea voyages, a top steel pipe is installed on the electric roller to prevent the float from jumping out from above. During transportation, the staff can adjust the float carrier that may be stuck in the roller through the float placement platform in the center of the support frame to assist in the smooth transportation of the float.

[0037] The device also uses an intermittent deployment plate to achieve intermittent deployment of floats, which rotates around the axis according to the different weights on both sides of the deployment platform's rotation axis to achieve intermittent deployment; the present invention can automatically recover and stably store large floats in an offshore platform environment, control the speed and position of the floats, and ensure that the floats are transported smoothly and safely to the release position and released in sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of a fully automatic offshore floating ball retracting and deploying device.

[0039] Figure 2 It is a schematic diagram of the forward structure of a fully automatic offshore buoy retracting and deploying device.

[0040] Figure 3 It is a schematic diagram of the back structure of a fully automatic offshore buoy retracting and deploying device.

[0041] Figure 4 It is a structural diagram of the electric roller conveyor.

[0042] Figure 5 It is a structural diagram of the float placement platform.

[0043] Figure 6 This is a structural diagram of the float deployment platform.

[0044] Figure 7 This is a structural diagram of the float carrier.

[0045] Figure 8 It is a cross-sectional view of the float carrier on the electric roller conveyor.

[0046] In the figure: 1. Electric roller, 1a. Straight roller, 1b. Spiral roller, 1c. Head end of roller, 1d. Tail end of roller, 1e. Roller bracket, 1f. Roller keel, 1g. Roller roller, 1h. Flat roller, 2. Motor, 3. Top steel pipe, 4. Roller side guardrail, 5. U-shaped guard bar at the head end of roller, 5a. Straight guard bar at the head end of roller, 6. Float placing platform, 6a. Limit end, 6b. Placing end, 6c. Placing platform shaft, 6d. Placing platform support, 6e. Platform roller, 6f. Adjustment plate, 6g. Adjustment plate support, 6h. Placing inclined plane, 6i. Platform bottom plate, 7. Speed ​​reduction curtain, 8. Support frame, 9. Float carrier, 9a. Carrier oblique section, 10. Float placement platform. DETAILED DESCRIPTION

[0047] The technical solution of the present invention will be described clearly and completely below, with reference to the accompanying drawings. The following examples are illustrative only and not restrictive, and should not be construed as limiting the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplification of the present invention. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific manner, and therefore should not be construed as limiting the present invention. In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, for example, to mean fixed, removable, or integral; mechanical, direct, or indirect through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0048] Figures 1 to 8 The figure shows a fully automatic offshore buoyancy device, which includes a support frame 8. The device includes a straight roller 1a and a spiral roller 1b. The straight roller 1a is arranged in the lower layer of the spiral roller 1b and is connected to it. The straight roller 1a and the spiral roller 1b both adopt a roller structure. Two roller brackets 1e are symmetrically arranged on the roller keel 1f of the roller structure. A slide groove for the movement of the buoy carrier is formed between the two roller brackets 1e. Roller rollers 1g are evenly distributed on the roller bracket 1e. The roller bracket 1e is inclined at 135° to the horizontal plane. The inclination angle of the straight roller 1a is 5°, and the spiral angle of the spiral roller 1b is also 5°. The tail end of the spiral roller 1b is connected to a horizontally arranged flat roller 1h.

[0049] A float placing platform 6 is provided at the roller head end 1c of the straight roller conveyor 1a, and a placing platform support 6d in the float placing platform 6 is provided on the platform bottom plate 6i, the limiting end 6a and the placing end 6b are fixed as a whole, and both ends of the placing platform rotating shaft 6c are provided in the placing platform support 6d, and the limiting end 6a and the placing end 6b rotate around the placing platform rotating shaft 6c; the weight of the limiting end 6a is greater than the weight of the placing end 6b, and the weight of the limiting end 6a is less than the sum of the weight of the placing end 6b, a float and the float carrier 9.

[0050] The roller head end 1c of the straight roller conveyor 1a is provided with a roller head end straight stop bar 5a and a roller head end U-shaped stop bar 5. The device also includes a float carrier 9 for transporting float balls.

[0051] In some embodiments, a top steel pipe 3 is provided above the straight roller conveyor 1 a and the spiral roller conveyor 1 b , and the top steel pipe 3 is provided on the top of the support frame 8 .

[0052] In some embodiments, roller side guardrails 4 for limiting floating balls are provided on the side walls of the straight roller conveyor 1a and the spiral roller conveyor 1b.

[0053] In some embodiments, deceleration curtains 7 are provided at appropriate positions of the straight roller conveyor 1a and the spiral roller conveyor 1b.

[0054] In some embodiments, an adjustment plate 6f is provided in front of the float placement platform 6 at the head end of the straight roller conveyor 1a, and a platform roller 6e is provided on the adjustment plate 6f.

[0055] When the above technical solution is used, the following steps are included:

[0056] S1. Automatically stacking the float ball:

[0057] Place the floats in the float carrier 9, and insert it into the device from the roller head end 1c of the straight roller 1a at the lowest point of the device. The carrier's beveled surface 9a has a cutting angle that fits the angle of the roller 1g of the roller. Turn on the motor 2 to reverse the roller 1g, and the floats will be transported to the top of the spiral roller 1b along with the carrier to complete the stacking of all the floats.

[0058] S2. Storage of float:

[0059] The floating balls are stored on the straight roller conveyor 1a and the spiral roller conveyor 1b, and the barrier rods are closed during storage;

[0060] S3. Transportation of float:

[0061] During transportation, first open the straight stop lever 5a at the roller head end 1c of the straight roller conveyor 1a, turn on the motor 2, and make the roller 1g arranged on the roller bracket 1e rotate smoothly, so that the floats are transported downward in sequence along with the float carrier 9 to the float placement platform 6;

[0062] S4. Float deployment:

[0063] When the float carrier 9 with the float arrives at the float placement platform 6 and is transported to the float placement platform 6, it continues to be pushed by the roller 1g to pass the limit end 6a and the placement platform shaft 6c. In the initial state of the float placement platform 6, the limit end 6a falls freely, contacts the inner surface of the roller keel 1f, and reaches the lower limit position; the float carrier 9 is pushed by the roller 1g to pass the limit end 6a and the placement platform shaft 6c. When the float carrier 9 moves to the placement end 6b, the sum of the weight of the float carrier 9 with the float and the placement end 6b is greater than the weight of the limit end 6a, and the limit end 6a automatically tilts up to reach the upper limit Position and press against the next float carrier 9 to stop it from moving; when the float moves to the float placement platform 6 at the end of the straight roller 1a, it is blocked by the U-shaped baffle 5 at the head end of the roller, and the float carrier 9 stops moving with the float; when the staff completes the connection between the float and the target object, lift the U-shaped baffle 5 at the head end of the roller, and after adjusting the posture of the platform roller 6e on the adjustment plate 6f, tilt the float carrier 9 toward the downstream direction to let the float fall into the water, remove the float carrier 9 and store it for future use; then the limit end 6a falls freely; repeat the above float placement steps to complete the placement of all floats. During transportation, the staff can adjust the float carrier 9 that may be stuck in the roller 1 through the float placement platform 10 in the center of the support frame 8 to assist in the smooth transportation of the float.

[0064] The device consists of an electric roller table 1, a motor 2, a top steel pipe 3, a roller side guardrail 4, a barrier rod 5, a float placement platform 6, a deceleration curtain 7, a support frame 8, and a float carrier 9. Its structure is as follows Figure 1 As shown, the system can store a total of 26 floats.

[0065] The structure of electric roller table 1 is as follows Figure 4 As shown, rollers 1g are evenly distributed on each side of the roller bracket 1e to transport the floats. Since the floats are heart-shaped, they are deployed, retrieved, and transported using float carriers 9 with a 135-degree angle on both sides. To facilitate stacking, a motorized roller conveyor with a suspended center section is used.

[0066] When retrieving the float balls, the float balls and float ball carriers 9 are manually placed into the device from the lowest straight roller head end 1c. The device's motor 2 is turned on and reversed, causing the rollers 1g to rotate and transport the float ball carriers 9 along the rollers into the device. All carriers containing float balls are placed in sequence, ensuring that the carriers are tightly attached to each other. Finally, all the float balls are recovered and stacked.

[0067] The storage of the float depends on the electric roller conveyor 1. Figure 5 The straight blocking rod 5a at the head end of the straight roller conveyor is shown to be closed and can be pulled out horizontally when it needs to be opened.

[0068] To prevent the float from accidentally rolling off the electric roller table 1 during storage or transportation, roller side guardrails 4 are installed on both sides of the electric roller table 1. To facilitate adjustments when the system is not running smoothly, the roller side guardrails 4 are divided into sections for easy removal. Considering the rough sea conditions, a top steel pipe 3 is installed on the electric roller table 1 to prevent the float from jumping out.

[0069] Final note: The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully automatic offshore floating ball retracting and deploying device, comprising a support frame (8), characterized in that: The support frame (8) supports the electric roller (1), which includes a straight roller (1a), a spiral roller (1b) and a flat roller (1h). The roller head end (1c) is arranged at one end of the straight roller (1a), and the other end of the straight roller (1a) is connected to the spiral roller (1b). The spiral roller (1b) rises in a spiral from low to high. The other end of the spiral roller (1b) is connected to one end of the flat roller (1h), and the other end of the flat roller (1h) is the roller tail end (1d); the height of the roller tail end (1d) is higher than the height of the roller head end (1c); the straight roller (1a) has an inclination angle of 4°-7°, the spiral roller (1b) has a helical angle of 4°-7°, and the flat roller (1h) is arranged horizontally without an inclination angle; The straight roller (1a), spiral roller (1b) and flat roller (1h) all adopt a roller structure, wherein two roller brackets (1e) are symmetrically arranged on the roller keel (1f) of the roller structure, a slide groove for the movement of the float is formed between the two roller brackets (1e), rollers (1g) driven by the motor (2) are evenly distributed on the roller brackets (1e), and the roller brackets (1e) are inclined at 120°-150° with the bottom surface of the roller; A float placing platform (6) is provided at the head end (1c) of the roller conveyor, an intermittent placing plate is provided on the platform bottom plate (6i) via a placing platform support (6d), the intermittent placing plate is provided on the placing platform support (6d) via a placing platform rotating shaft (6c), one side of the placing platform rotating shaft (6c) is a limiting end (6a), and the other side is a placing end (6b); the weight of the limiting end (6a) is greater than the weight of the placing end (6b), and the weight of the placing end (6b) and the float carrier (9) with the float is greater than the weight of the limiting end (6a); the intermittent placing plate rotates around the axis according to the difference in weight on both sides of the placing platform rotating shaft (6c), thereby realizing intermittent placing of the float; an adjusting plate support (6g) is provided on the back side of the adjusting plate (6f) in the placing end (6b), and a placing inclined surface (6h) is provided on the outer end of the adjusting plate (6f); a platform roller (6e) is provided on the adjusting plate (6f); A float placement platform (10) is provided at the center of the spiral roller (1b); the device also includes a float carrier (9) for transporting the floats, and the carrier's oblique section (9a) at the bottom acts on the roller (1g).

2. The fully automatic offshore floating ball retracting and deploying device according to claim 1, characterized in that: Roller side guardrails (4) for limiting floating balls are provided on both sides of the straight roller conveyor (1a), spiral roller conveyor (1b) and flat roller conveyor (1h); and top steel pipes (3) are provided above the straight roller conveyor (1a), spiral roller conveyor (1b) and flat roller conveyor (1h).

3. The fully automatic offshore floating ball retracting and deploying device according to claim 1, characterized in that: A deceleration curtain (7) for reducing the speed of the floating ball is provided above the electric roller conveyor (1).

4. The fully automatic offshore floating ball retracting and deploying device according to claim 1, characterized in that: A roller conveyor head end straight stop bar (5a) and a roller conveyor head end U-shaped stop bar (5) are provided at the roller conveyor head end (1c).

5. The fully automatic offshore floating ball retracting and deploying device according to claim 1, characterized in that: The carrier bevel surface (9a) of the float carrier (9) is covered with rubber, and the inclination angle of the carrier bevel surface (9a) is the same as the inclination angle of the roller (1g).

6. The working method of the fully automatic offshore floating ball retracting and releasing device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Automatically stacking the float: The float is placed in the float carrier (9), and is placed into the device from the lowest roller head end (1c) of the straight roller (1a), with the carrier bevel surface (9a) being attached to the roller (1g). The motor (2) is turned on and reversed, causing the roller (1g) to rotate in the opposite direction. The float is transported along with the carrier to the roller tail end (1d) at the top of the spiral roller (1b), and is stacked and arranged in sequence until all the floats are stacked. S2. Storage of float: The floating balls are stored on the straight roller conveyor (1a) and the spiral roller conveyor (1b), and when storing, the straight blocking rod (5a) at the roller conveyor head end and the U-shaped blocking rod (5) at the roller conveyor head end (1c) are closed; S3. Transportation of float: During transportation, first open the roller conveyor head end straight stop rod (5a) at the roller conveyor head end (1c), start the motor (2), and make the roller conveyor roller (1g) arranged on the roller bracket (1e) rotate smoothly, so that the float is transported downward in sequence along with the float carrier (9) to the float placement platform (6); S4. Float deployment: After the float carrier (9) is transported to the float placement platform (6), it continues to be pushed by the roller (1g) to cross the limit end (6a) and the placement platform shaft (6c). When the float carrier (9) moves to the placement end (6b), the weight of the float carrier (9) with the float and the placement end (6b) is greater than the weight of the limit end (6a). The limit end (6a) automatically tilts up, reaches the upper limit position and presses against the next float carrier (9) to stop it from moving. Turn off the motor (2), and the U-shaped stop bar (5) at the head end of the roller is turned off. ) blocks the float carrier (9) and the float to stop moving; the staff adjusts the position of the float carrier (9) by adjusting the platform roller (6e) on the plate (6f) to complete the connection between the float and the target object, lifts the U-shaped baffle (5) at the head end of the roller, tilts the carrier toward the downstream direction, and the float falls into the water, removes the float carrier (9) and stores it for future use; then the limit end (6a) falls freely, contacts the inner surface of the roller keel (1f), and reaches the lower limit position; repeats the above float placement steps to complete the placement of all floats.

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