Simple repairing device and method for underwater plate defects

Abstract

The application relates to the technical field of ship maintenance, and discloses a simple underwater plate defect repairing device and method. The simple underwater plate defect repairing device comprises a protective cover and an air valve mechanism. The protective cover comprises a sealing rubber strip and an organic glass plate. The sealing rubber strip is arranged on one side of the organic glass plate, and the sealing rubber strip surrounds a closed area along the edge of the organic glass plate. An installation hole is arranged on the organic glass plate. The air valve mechanism is arranged on the side of the organic glass plate away from the sealing rubber strip. The air valve mechanism is installed on the installation hole. The air valve mechanism is connected with an air compressor, so that the air and liquid in the protective cover can be discharged. The device has the advantages of simple structure, low cost and convenient operation. The application also provides a simple underwater plate defect repairing method. The method has simple construction procedures, can reduce construction time, save construction cost, and reduce the safety hidden danger of construction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship maintenance, in particular to a simple repair device and method for underwater plate defects. BACKGROUND

[0002] At present, in the actual operation of the ship, the underwater plate may be damaged due to some special reasons, such as simple welding leakage, local small defects, etc. The conventional treatment measure is to put the ship into the dry dock, empty the water in the dock to make the plate dry, and then repair it. Such construction and repair method causes large construction cost and cycle, and consumes a lot of manpower, material resources and financial resources. SUMMARY

[0003] The technical problem to be solved by the present application is how to overcome the defects of the prior art, such as construction trouble and large investment of manpower and material resources.

[0004] In order to solve the above technical problems, the present application provides a simple repair device for underwater plate defects, comprising:

[0005] A protective cover, the protective cover comprises a sealing rubber strip and an organic glass plate, the sealing rubber strip is arranged on one side of the organic glass plate, and the sealing rubber strip surrounds a closed area along the edge of the organic glass plate, and the organic glass plate is provided with a mounting hole; and

[0006] A gas valve mechanism, the gas valve mechanism is arranged on the side of the organic glass plate away from the sealing rubber strip, the gas valve mechanism is installed in the mounting hole, and the gas valve mechanism is used for being connected with an air compressor to discharge the gas and liquid in the protective cover.

[0007] Further preferably, the gas valve mechanism comprises:

[0008] A three-way valve, the three-way valve comprises an air inlet, a discharge port and a gas-liquid inlet, and the air inlet and the discharge port are in the same straight line;

[0009] A compressed gas inlet valve core, one end of which is sealed and extends into the air inlet;

[0010] A pipe joint bolt, which is arranged in the mounting hole and forms a watertight between the pipe joint bolt and the organic glass plate; and

[0011] A three-way joint, the first end of the three-way joint is sealed and connected with the pipe joint bolt, the second end of the three-way joint is sealed and connected with the gas-liquid inlet, and the third end of the three-way joint is provided with a gas pressure gauge.

[0012] Further preferably, a step is arranged on the inner wall of the three-way valve close to the air inlet, so that the diameter of the air inlet is smaller than the diameter of the discharge port.

[0013] Further preferably, the end of the compressed gas inlet valve core extending into the gas inlet port is formed as a tapered structure, and the diameter of the tapered structure is tapered from the gas inlet port to the discharge port.

[0014] Further preferably, the tapered structure extends to the gas-liquid inlet through the edge of the step, and a negative pressure area is formed between the tapered structure and the gas-liquid inlet.

[0015] Further preferably, a nut is further arranged on the side of the organic glass plate facing the sealing rubber strip, the nut corresponds to the mounting hole, and the nut is connected with the pipe joint bolt.

[0016] Further preferably, a gasket is further arranged between the nut and the organic glass plate.

[0017] Further preferably, a rubber gasket is further sleeved on the pipe joint bolt, and the rubber gasket abuts against the side of the organic glass plate away from the sealing rubber strip.

[0018] A simple repair method for underwater outer plate defects is realized based on the simple repair device for underwater outer plate defects, and comprises the following steps:

[0019] Confirming the defect position of the ship outer plate, and manually installing the air valve mechanism on the protective cover;

[0020] Using an underwater operating robot to install the protective cover at the defect position of the ship outer plate;

[0021] Connecting the compressed gas inlet valve core to the air compressor, starting the air compressor, so that a vacuum state is formed in the protective cover to be adsorbed on the ship outer plate;

[0022] Rapidly welding and repairing the defect position of the ship outer plate inside the ship.

[0023] Further preferably, the specific steps of connecting the compressed gas inlet valve core to the air compressor, starting the air compressor, so that a vacuum state is formed in the protective cover to be adsorbed on the ship outer plate are as follows:

[0024] After starting the air compressor, high-pressure gas flows to the discharge port through the compressed gas inlet valve core, a negative pressure state is formed in the negative pressure area, so that the water and air in the protective cover are discharged to form a vacuum state.

[0025] The simple repair device and method for underwater outer plate defects provided by the present application have the following beneficial effects compared with the prior art:

[0026] The protective cover can be fixed to different outer plates by arranging sealing rubber strips on one side of the organic glass plate to enclose a closed area, and the gas valve mechanism can be installed on the organic glass plate through the installation hole to facilitate the discharge of gas and liquid in the protective cover, which is beneficial to subsequent repair work; the simple structure and low manufacturing cost of the protective cover are convenient to operate, and the protective cover can be directly used on the ship outer plate underwater, avoiding the problems of construction trouble and large investment of manpower and material resources caused by the original docking repair method; the ship outer plate defect site is quickly welded and repaired in the ship through the negative pressure vacuum method, the method has simple construction process, can reduce construction time and save construction cost, and has high operation safety, compared with the original docking repair method, the safety hidden danger of construction is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the assembly schematic view of the protective cover and the ship outer plate.

[0028] Figure 2 is the structural schematic view of the simple repair device for underwater outer plate defects.

[0029] Figure 3 is the bottom view of the protective cover.

[0030] Figure 4 is the enlarged schematic view of C in the present application. Figure 2

[0031] Figure 5 is the assembly schematic view of the three-way valve and the compressed gas inlet valve core.

[0032] In the figure:

[0033] 10, protective cover;

[0034] 11, sealing rubber strip;

[0035] 12, organic glass plate;

[0036] 13, installation hole;

[0037] 14, gas valve mechanism; 141, three-way valve; 1411, gas inlet; 1412, discharge port; 1413, gas-liquid inlet; 1414, step; 142, compressed gas inlet valve core; 1421, conical surface structure; 143, three-way joint; 144, pipe joint bolt; 145, nut; 146, rubber gasket; 147, gasket; 148, connecting piece; 149, air pressure gauge;

[0038] 20, ship outer plate;

[0039] A, ship outer plate defect site; B, underwater part of ship outer side.​ DETAILED DESCRIPTION

[0040] The specific embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but are not intended to limit the scope of the present application.

[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", "one end", "the other end", "between", "towards", "away from", "edge" and the like in the present application are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0042] The terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] As Figures 1-5 shown, the present embodiment provides a simple underwater plate defect repair device, which comprises a protective cover 10 and a gas valve mechanism 14, and has simple structure and convenient operation.

[0044] In the specific embodiment, the protective cover 10 comprises a sealing rubber strip 11 and a plexiglass plate 12, the sealing rubber strip 11 is arranged on one side of the plexiglass plate 12, and the sealing rubber strip 11 surrounds a closed area along the edge of the plexiglass plate 12, and the plexiglass plate 12 is provided with a mounting hole 13; the air valve mechanism 14 is arranged on the side of the plexiglass plate 12 away from the sealing rubber strip 11, the air valve mechanism 14 is mounted in the mounting hole 13, and the air valve mechanism 14 is used to be connected with the air compressor to enable the gas and liquid in the protective cover 10 to be discharged. By arranging the sealing rubber strip 11 surrounding the closed area on one side of the plexiglass plate 12, the sealing rubber strip 11 can be rubber or silicone. Since the sealing rubber strip has a little elasticity, the protective cover 10 can be matched with different outer plates for close fitting and fixing, which is beneficial to subsequent repair work. By providing the mounting hole 13 on the plexiglass plate 12, the air valve mechanism 14 is facilitated to be installed, so that the gas and liquid in the protective cover 10 can be discharged, which is beneficial to subsequent repair work. The device has the advantages of simple structure, low manufacturing cost, convenient operation, and can be directly used underwater for ship outer plate, avoiding the problems of construction trouble and large investment of manpower and material resources caused by the original docking repair method.

[0045] Exemplarily, the air valve mechanism 14 comprises a three-way valve 141, a compressed gas inlet valve core 142, a pipe joint bolt 144 and a three-way joint 143.

[0046] Specifically, referring to Figure 4 and Figure 5 , the three-way valve 141 comprises an air inlet 1411, a discharge port 1412 and a gas-liquid inlet 1413, wherein the air inlet 1411 and the discharge port 1412 are on the same straight line, and the flow direction of the gas-liquid inlet 1413 is perpendicular to the flow direction of the air inlet 1411.

[0047] In the above example, the compressed gas inlet valve core 142 is sealed at one end and extends into the air inlet 1411, and the end of the compressed gas inlet valve core 142 extending into the air inlet 1411 forms a conical surface structure 1421, and the diameter of the conical surface structure 1421 is gradually reduced from the air inlet 1411 to the discharge port 1412. In this way, the conical surface structure 1421 facilitates the insertion of the compressed gas inlet valve core 142 into the air inlet 1411, while the outer wall of the compressed gas inlet valve core 142 has a gap with the gas-liquid inlet 1413, avoiding affecting the medium flow of the gas-liquid inlet 1413.

[0048] In the above example, the three-way valve 141 is provided with a step 1414 near the inner wall of the air inlet 1411, so that the diameter of the air inlet 1411 is smaller than the diameter of the discharge port 1412; the taper structure 1421 extends to the gas-liquid inlet 1413 through the edge of the step 1414, and a negative pressure area is formed between the taper structure 1421 and the gas-liquid inlet 1413; when the compressed air flows to the discharge port 1412 through the compressed gas inlet valve core 142, a low pressure area, i.e. a negative pressure area, is formed between the taper structure 1421 and the gas-liquid inlet 1413 due to the high gas flow rate, under the action of the negative pressure, the air and moisture in the protective cover 20 enter the three-way valve 141 through the gas-liquid inlet 1413, and finally are discharged through the discharge port 1412, thereby forming a vacuum drying area in the protective cover 20.

[0049] It should be noted that in the above example, after the pressure in the protective cover 20 is reduced, a significant water absorption or air absorption phenomenon will occur in the interior of the ship at the damaged position; during the repair process, the moisture in the construction area should be treated clean in advance to form a dry space inside and outside the damaged area, but a significant air absorption phenomenon will occur in the interior of the ship at the damaged position, therefore, the vacuum drying area formed in the protective cover 20 is a relative vacuum state, rather than an absolute vacuum state.

[0050] In some embodiments, the pipe joint bolt 144 is arranged in the mounting hole 13, and a water-tight is formed between the pipe joint bolt 144 and the organic glass plate 12, so that the protective cover 20 can form a vacuum drying area under the action of the air compressor; the first end of the three-way joint 143 is in sealed connection with the pipe joint bolt 144, the second end of the three-way joint 143 is in sealed connection with the gas-liquid inlet 1413, and the third end of the three-way joint 143 is provided with a gas pressure gauge 149, through which the air pressure in the protective cover 20 can be observed and controlled, to facilitate the repair work.

[0051] In some embodiments, a nut 145 is further arranged on the side of the organic glass plate 12 facing the sealing rubber strip 11, the nut 145 corresponds to the mounting hole 13, and the nut 145 is connected with the pipe joint bolt 144; a gasket 147 is further arranged between the nut 145 and the organic glass plate 12, and a rubber gasket 146 is further sleeved on the pipe joint bolt 144, and the rubber gasket 146 abuts against the side of the organic glass plate 12 away from the sealing rubber strip 11; under the action of the gasket 147 and the rubber gasket 146, when the pipe joint bolt 144 and the nut 145 are tightened with each other, a water-tight is formed at the mounting hole 13, i.e. the inside and outside of the protective cover 20 are not communicated, so that a vacuum drying area can be formed in the protective cover 20.

[0052] As shown in Figures 1-5 The present embodiment further provides a simple repair method for underwater outer plate defects, which is realized based on the simple repair device for underwater outer plate defects and includes the following steps:

[0053] Step 1: Identify defect A on the ship's outer plating and manually install the air valve mechanism 14 onto the protective cover 10;

[0054] Step 2: Use an underwater robot to install the protective cover 10 at the defective location A on the ship's outer hull;

[0055] Step 3: Connect the compressed gas inlet valve core 142 to the air compressor, start the air compressor, so that a vacuum is formed inside the protective cover 10 and it is adsorbed onto the ship's outer plate 20;

[0056] Step 4: Quickly weld and repair the defective part A on the outer plate of the ship from inside the ship.

[0057] In the example above, such as Figure 1 As shown, a defect A appears on the outer plating 20 of the ship, and this defect A is located on the underwater part B on the outer side of the ship. Therefore, in this embodiment, a protective cover 10 is used to protect the area of ​​the outer plating 20 that needs repair, and the air and moisture inside the protective cover 20 are extracted to create a dry space inside the protective cover 20. Then, the repair is carried out at the damaged location inside the ship. This method is simple to operate and has a low cost.

[0058] In a specific implementation, the steps of connecting the compressed gas inlet valve core to the air compressor in step three, and starting the air compressor to create a vacuum inside the protective cover and adsorb onto the ship's outer plating, are as follows: After starting the air compressor, high-pressure gas flows through the compressed gas inlet valve core 142 to the vent 1412, creating a negative pressure in the negative pressure area, thus expelling water and air from the protective cover 10 and creating a vacuum. By utilizing this negative pressure vacuum method to quickly weld and repair defects on the ship's outer plating inside the vessel, this method has a simple construction process, reduces construction time and costs, and offers high operational safety. Compared to the original docking repair method, it reduces construction safety hazards.

[0059] In summary, the simple repairing device and method for underwater outer plate defects provided by the present application has the sealing rubber strip 11 arranged on one side of the organic glass plate 12 to form a closed area, so that the protective cover 10 can be matched with different outer plates for fixation, and the mounting hole 13 is arranged on the organic glass plate 12 to facilitate the installation of the air valve mechanism 14, so as to facilitate the discharge of gas and liquid in the protective cover 10, which is beneficial to subsequent repair work; the present application has the advantages of simple structure, low manufacturing cost, convenient operation, and can be directly used on the ship outer plate underwater, avoiding the problems of construction trouble and large investment of manpower and material resources caused by the original docking repair method; the present application uses negative pressure vacuum method to quickly weld and repair the defective part of the ship outer plate inside the ship, which has the advantages of simple construction process, reduced construction time, saved construction cost, high operation safety, and reduced construction safety hazards compared with the original docking repair method.

[0060] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the art, several improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application. The above shows and describes the basic principles, main features and advantages of the present application, and it is obvious for those skilled in the art that the present application is not limited to the details of the above preferred embodiments, the embodiments should be considered as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application.

[0061] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A simple repair device for underwater hull defects, characterized in that, The utility model relates to a protective cover for ship hull defect repair, comprising: a protective cover, which comprises a sealing rubber strip and a plexiglass plate, the sealing rubber strip is arranged on one side of the plexiglass plate, and the sealing rubber strip surrounds a closed area along the edge of the plexiglass plate, and a mounting hole is formed in the plexiglass plate; and a gas valve mechanism, which is arranged on the side of the plexiglass plate away from the sealing rubber strip, the gas valve mechanism is mounted in the mounting hole, and the gas valve mechanism is used to be connected with an air compressor to discharge gas and liquid in the protective cover; wherein the gas valve mechanism comprises a three-way valve, a compressed gas inlet valve core, a pipe joint bolt and a three-way joint, the three-way valve comprises an air inlet, a discharge port and a gas-liquid inlet, the air inlet and the discharge port are in the same straight line, one end of the compressed gas inlet valve core is sealed and extends into the air inlet, the pipe joint bolt is arranged in the mounting hole, and a watertight space is formed between the pipe joint bolt and the plexiglass plate, the first end of the three-way joint is sealed and connected with the pipe joint bolt, the second end of the three-way joint is sealed and connected with the gas-liquid inlet, and the third end of the three-way joint is provided with a gas pressure gauge; a step is arranged on the inner wall of the three-way valve close to the air inlet, so that the diameter of the air inlet is smaller than the diameter of the discharge port; the end of the compressed gas inlet valve core extending into the air inlet is provided with a conical surface structure, and the diameter of the conical surface structure is gradually reduced from the air inlet to the discharge port; the conical surface structure extends to the gas-liquid inlet through the edge of the step, and a negative pressure area is formed between the conical surface structure and the gas-liquid inlet.

2. A simple repair device for underwater hull defects according to claim 1, characterized in that, a nut is further arranged on the side of the plexiglass plate facing the sealing rubber strip, the nut corresponds to the mounting hole, and the nut is connected with the pipe joint bolt.

3. A simple repair device for underwater hull defects according to claim 2, characterized in that, a gasket is further arranged between the nut and the plexiglass plate.

4. The simple repair device for underwater hull defects according to claim 1, characterized in that, a rubber gasket is further sleeved on the pipe joint bolt, and the rubber gasket abuts against the side of the plexiglass plate away from the sealing rubber strip.

5. A method for repairing a defect of a underwater hull plate based on the device for repairing a defect of a underwater hull plate according to any one of claims 1-4, characterized in that, The utility model relates to a protective cover for ship hull defect repair, comprising: confirming the defect position of the ship hull, manually installing the gas valve mechanism on the protective cover; installing the protective cover on the defect position of the ship hull by using an underwater operating robot; connecting the compressed gas inlet valve core to the air compressor, starting the air compressor, so that the protective cover forms a vacuum state and is adsorbed on the ship hull; quickly welding and repairing the defect position of the ship hull inside the ship.

6. A simple method of repairing defects in underwater hull plating as claimed in claim 5, wherein, The specific steps of connecting the compressed gas inlet valve core to the air compressor, starting the air compressor, so that the protective cover forms a vacuum state and is adsorbed on the ship hull are as follows: after starting the air compressor, high-pressure gas flows to the discharge port through the compressed gas inlet valve core, a negative pressure state is formed in the negative pressure area, so that water and air in the protective cover are discharged to form a vacuum state.

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