A method of drift buoy recovery

Abstract

The present application relates to a kind of methods for recycling drift buoy, comprising: the position of fixed rope is selected;Fixed rope;Loosen the rope;Tighten the rope;Salvage drift buoy.The present application uses a cross river rope fixed at one end on the opposite bank, utilizes the inclination angle between rope and water flow, repeatedly tightens and relaxes the rope, under the action of water flow and tension, without personnel diving and salvage by ship, easily gradually draws the drift buoy in the center of river to the bank and salvages on shore.The equipment used in the method is very simple, only a rope can float on water surface, without any mechanical equipment can recycle drift buoy, low cost, safe and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to a method for recovering a floating buoy, which is an auxiliary method for hydraulics research and a method for recovering a research floating object in a river. BACKGROUND

[0002] In the research of rivers by hydraulics, various floating buoys are often used to float with the water flow. When the floating buoy is in the central part of the river where the relative flow velocity of the water flow is relatively large, the floating buoy needs to be recovered for some reason (adjustment, battery replacement, troubleshooting, etc.), which will cause embarrassment in recovery. Directly recovering the floating buoy by manual diving has certain risks. After all, in the wild, if the equipment is not fully prepared and the underwater conditions are not fully understood, it is dangerous to dive recklessly. If a ship is used for recovery, it is not convenient to carry due to its large size, and there are many problems in finding a ship on site. Therefore, how to use only simple equipment to quickly and safely recover the floating buoy in the wild is a problem to be solved. SUMMARY

[0003] In order to overcome the problems of the prior art, the present application provides a method for recovering a floating buoy. The method uses a rope that crosses the river to repeatedly tighten and relax the rope by the inclination angle between the rope and the water flow, so that the floating buoy in the central part of the river can be easily pulled to the shore and salvaged without the need for personnel to dive and a ship.

[0004] The purpose of the present application is achieved by a method for recovering a floating buoy, wherein the equipment used is a rope that can float on the water surface, and the steps of the method are as follows:

[0005] Step 1: Select the position of the fixed rope: select a river section with relatively stable water flow and relatively parallel river banks on both sides of the river as a salvage point where the floating buoy passes;

[0006] Step 2: Fix the rope: fix one end of the rope at a position close to the water surface on the opposite bank of the salvage point, and select a rope control position on the bank of the salvage point, which moves a distance downstream so that the rope is in a straight line when it is tightened, and the rope forms an acute angle with the direction of the water flow in the river;

[0007] Step 3: Relax the rope: when the floating buoy approaches the salvage point, relax the rope so that the rope floats on the water surface, and the rope forms an arch under the impact of the water flow, and the floating buoy collides with the curved rope along the water flow;

[0008] Step 4: Tighten the rope: gradually tighten the rope, and under the push of the rope, the floating buoy moves in the opposite direction of the water flow, and under the action of the friction force of the rope, the floating buoy also produces a displacement towards the bank of the river.

[0009] Step 5: Salvaging the floating buoy: Steps 3 and 4 are repeated to gradually bring the floating buoy closer to the river bank, and finally the floating buoy is brought to the river bank to complete the salvage of the floating buoy.

[0010] Further, the acute angle between the rope and the direction of the water flow in the river is 30-70 degrees. α

[0011] The advantages and beneficial effects of the present application are: the present application uses a rope fixed at one end to the opposite bank of the river, and uses the acute angle between the rope and the water flow to repeatedly tighten and relax the rope. Under the action of the water flow and the tension force, the floating buoy in the center of the river is gradually brought closer to the bank and salvaged without the need for personnel to get into the water or use a boat. The method uses very simple equipment, only a rope that can float on the water surface, and can recover the floating buoy without any mechanical equipment, with low cost and safety and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0012] The present application will be further described below in conjunction with the drawings and examples.

[0013] Figure 1 is a schematic diagram of the method of embodiment one of the present application;

[0014] Figure 2 is a flowchart of the method of embodiment one of the present application. DETAILED DESCRIPTION

[0015] Embodiment one:

[0016] This embodiment is a method for recovering a floating buoy, and the principle of salvaging the floating buoy is as shown in Figure 1 .

[0017] This embodiment is mainly used for salvaging unpowered floating buoys floating in the river, and can safely bring the floating buoy floating in the center of the water flow closer to the bank without the need for personnel to get into the water or use other salvage tools. The basic method of this embodiment is to use an inclined rope, i.e. a rope fixed at one end to the opposite bank of the river, and constantly tighten and relax the rope on the other side of the river bank. The rope is transversely across the river and forms an angle with the direction of the water flow in the river. The angle between the friction force of the rope and the impact direction of the water flow forms a force that brings the floating buoy closer to the river bank. Through repeated relaxation-tightening-relaxation-tightening, the floating buoy is salvaged.

[0018] This embodiment not only recovers the floating buoy, but also recovers any floating object similar to the floating buoy on the water surface.

[0019] ​The basic equipment used in the method described in this embodiment is a rope that can float on the water surface. The rope can be a lightweight chemical fiber rope with a specific gravity less than water, or a grass rope obtained from the local area for field operation. The key is that the rope must be able to float on the water surface. This is because the drift buoy is an object floating on the water surface with a shallow draft, so the rope mainly blocks the part of the drift buoy close to the water surface. To increase the probability of blocking the drift buoy, plastic pieces that can float on the water surface can be used to form a chain by standing up in series. The chain of plastic pieces can more effectively block the drift buoy. The thickness of the rope mainly depends on the size of the salvaged drift buoy and the width of the river. If the drift buoy has a larger size and the river is wider, a thicker rope needs to be used, and vice versa.

[0020] The specific steps of the method described in this embodiment are as follows:

[0021] Step 1: Select the position of the fixed rope. Select a river section with relatively stable water flow and relatively parallel banks as the salvage point where the drift buoy passes.

[0022] The ideal salvage point river section is relatively parallel on both banks, so that the water flow will not produce turbulence due to changes in the bank, and the stable water flow will facilitate the salvage operation and reduce labor intensity.

[0023] Step 2: Fix the rope. Select a position close to the water surface on the opposite bank of the salvage point to fix one end of the rope. Select a rope control position on the bank of the salvage point, which moves a certain distance downstream so that the rope is taut as a straight line (as shown by the thick dashed line), and the rope forms an acute angle with the direction of the water flow in the river (as shown by the hollow arrow). Figure 1 Figure 1 α ;

[0024] The angle between the taut rope and the direction of the water flow is very critical. It is this angle that allows the rope to bring the drift buoy closer to the bank and salvage it on the bank during repeated tensioning and relaxation. α

[0025] After the end of the rope is fixed, the rope should be suspended in the air when there is no drift buoy approaching the salvage point to avoid intercepting useless floating objects on the water surface. The stretching position of the rope can be a manually pulled position, or a rotating shaft fixed to the ground to change the stretching direction of the rope. When a larger stretching force is needed, a pulley can be installed on the rotating shaft. The stretching of the rope can be manual or mechanical, such as a winch machine or a winch of an off-road vehicle.

[0026] ​​​It should be noted that, for the convenience of description, the river bank where the fixed rope is located is referred to as "the opposite bank of the river", and the river bank where the rope is used to pull up the floating buoy is referred to as "the bank of the river".

[0027] Step 3, loosening the rope: when the floating buoy approaches the fishing point, the rope is loosened so that the rope floats on the water surface, and the rope forms an arch under the impact of the water flow, and the floating buoy collides with the curved rope under the water flow;

[0028] Since the design of the floating buoy requires that the floating buoy should be relatively stable in the water flow with a large flow rate, and the large flow rate in the river usually occurs in the center of the river, therefore, the floating buoy usually appears in the center of the water flow during the floating process, approximately at the position of the maximum arch of the arch, as shown in the figure. Figure 1 The position of the floating buoy is indicated by a solid line.

[0029] Step 4, tightening the rope: the rope is gradually tightened, and under the pushing of the rope, the floating buoy moves in the opposite direction of the water flow, and at the same time, under the action of the friction with the rope, the floating buoy also generates a displacement towards the bank of the river, as shown in the figure. Figure 1 The displacement promotes the movement of the floating buoy towards the bank of the river.

[0030] Step 5, fishing the floating buoy: steps 3 and 4 are repeated to make the floating buoy continuously approach the bank of the river, as shown in the figure. Figure 1 Finally, the floating buoy is made to be close to the bank of the river, and the fishing of the floating buoy is completed.

[0031] The process of fishing the floating buoy is simple and easy to operate. In the actual process, the pulley and winch are repeatedly reversed to make the rope loosen-tighten-loosen-tighten. By correctly controlling the degree of loosening and tightening, the floating buoy can be quickly fished successfully.

[0032] Example 2

[0033] This embodiment is an improvement of the above-mentioned embodiment, which is a refinement of the acute angle between the rope and the direction of the water flow in the river, and the acute angle between the rope and the direction of the water flow in the river is 30-70 degrees.

[0034] The smaller the angle between the rope and the water flow, the faster the floating buoy can approach the bank. However, a small angle requires a longer rope, and the increase in the length of the rope increases the process of loosening and tightening at a time. When the water surface is relatively wide, the time cost of the long rope is particularly obvious, therefore, the acute angle between the rope and the direction of the water flow in the river should be selected according to the actual situation.

[0035] Finally, it should be noted that the above merely serves to illustrate the technical solutions of the present application and is not intended to be limiting. Although the present application has been described in detail with reference to the preferred arrangement, those skilled in the art should understand that modifications or equivalent replacements can be made to the technical solutions of the present application (such as the form of the rope, the state of the river, the order of the steps, etc.) without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A method for retrieving a drift buoy, the method using equipment in the form of a rope which is capable of floating on the surface of the water, characterised in that, The steps of the method are as follows: Step 1, selecting the position of the fixed rope: selecting a river section with relatively stable water flow and relatively parallel river banks on both sides of the river as the fishing point in the river section passed by the floating buoy; Step 2, fixing the rope: selecting a position close to the water surface on the opposite bank of the fishing point to fix one end of the rope, and selecting a rope control position on the bank of the fishing point, the rope control position moving a distance downstream, so that the rope is in tension and forms a straight line, and the rope forms an acute angle with the direction of the water flow in the river; Step 3, relaxing the rope: relaxing the rope when the floating buoy approaches the fishing point, so that the rope floats on the water surface, and the rope forms an arc under the impact of the water flow, and the floating buoy collides with the curved rope under the water flow; Step 4, tightening the rope: gradually tightening the rope, and under the push of the rope, the floating buoy moves in the opposite direction of the water flow, and under the action of the friction with the rope, the floating buoy also produces a displacement towards the bank of the river; Step 5, fishing the floating buoy: repeatedly performing steps 3 and 4 to make the floating buoy continuously approach the bank of the river, and finally make the floating buoy lean against the bank of the river, completing the fishing of the floating buoy.

2. The method of claim 1, wherein, The acute angle of the rope with the direction of the flow of water in the river α is 30-70 degrees.

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