A hydraulic hatch cover watertight pressure device and test method

Abstract

A hydraulic hatch cover watertight pressure device and test method, the hatch coaming top is hinged to the hatch cover by a hinge, a sealing cover is fixed on the outer surface of the hatch cover, the sealing cover is hollow inside, a connecting joint with a stop valve is fixed on the outer surface of the sealing cover, a drain valve is provided at the end of the bottom of the sealing cover away from the hinge, and a locking mechanism and an opening and closing mechanism are fixed on the inner surface of the hatch cover. Water is poured into the sealing cover and pressurized, the hatch cover is opened by the opening and closing mechanism and the locking mechanism, and the hatch cover is subjected to watertightness, water pressure and action tests. The test device structure of the present invention can test the action and watertightness pressure at the same time by one device, and the action test can be carried out in stages and effectively, the overall action is disassembled, and the watertightness and water pressure test and the action test are carried out simultaneously, which reduces the number of tests and reduces the difficulty and cost of operation.

Description

Technical Field

[0001] The present invention relates to the field of hatch cover testing devices, in particular to a device and method for conducting watertight pressure testing on a hydraulic hatch cover. Background Art

[0002] After the hydraulic hatch cover is built, it is necessary to test the tightness of the hatch cover, and the pressure required is 1 bar. Due to the pressure requirement, it is different from ordinary hatch covers, which only need to be tested for tightness by flushing test, but require an overall test and action test. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a hydraulic hatch cover watertight pressure device and test method, aiming to provide a test device and method that can perform both sealing test and action test. The technical solution adopted is:

[0004] A hydraulic hatch cover watertight pressure device, the hatch coaming top is hinged to the hatch cover by a hinge, a sealing cover is fixed on the outer surface of the hatch cover, the sealing cover is hollow inside, a connecting joint with a stop valve is fixed on the outer surface of the sealing cover, a drain valve is arranged at one end of the bottom of the sealing cover away from the hinge, and a locking mechanism and an opening and closing mechanism are fixed on the inner surface of the hatch cover.

[0005] The opening and closing mechanism has a supporting connecting rod and a hydraulic cylinder. One end of the supporting connecting rod is connected to the first hydraulic cylinder body and the hatch enclosure through a bottom plate. The other end of the supporting connecting rod and the telescopic rod of the first hydraulic cylinder are fixed to the inner surface of the hatch cover.

[0006] The locking mechanism has a second hydraulic cylinder, the cylinder body of the second hydraulic cylinder is connected to the first locking rod of the first locking pin, the telescopic rod of the second hydraulic cylinder is connected to the second locking rod of the second locking pin, the rod body of the first locking rod is connected to the third locking rod of the third locking pin through a triangular linkage component, the third locking rod is perpendicular to the first locking rod, the first locking rod, the second locking rod and the third locking rod are respectively fixed to the inner surface of the hatch cover through the first fixing seat, the second fixing seat and the third fixing seat. The locking mechanism has three locking pins, and the three locking pins are respectively located in three different directions of the hatch cover, locking the hatch cover in three directions, and the hatch cover can be fully sealed by only one component.

[0007] The above-mentioned hydraulic hatch cover watertight pressure device further has a sealing cover covering the hatch cover to wrap the hatch cover.

[0008] The above-mentioned hydraulic hatch cover watertight pressure device further has one end of the connecting joint communicated with the inside of the sealing cover, and the other end communicated with the external water pipe.

[0009] The above-mentioned hydraulic hatch cover watertight pressure device, further, the bottom plate is a long strip plate, the end of the supporting connecting rod and the hydraulic cylinder body are welded to the bottom plate, and the bottom plate is welded to the hatch coaming.

[0010] The above-mentioned hydraulic hatch cover watertight pressure device, further, has round holes formed at the hatch coaming corresponding to the first locking rod, the second locking rod and the third locking rod, and the ends of the first locking rod, the second locking rod and the third locking rod are inserted into the round holes.

[0011] The above-mentioned hydraulic hatch cover watertight pressure device, further, the fixing fixture has an L-shaped connecting plate, one end of the connecting plate is fixed to the fixed tire frame, and the other end is fixed with a nut, and the screw is inserted into the nut and pressed against the hatch coaming base.

[0012] The above-mentioned hydraulic hatch cover watertight pressure device, further, the hatch coaming is fixed to the fixed tire frame by a fixing clamp.

[0013] The test method using the above hydraulic hatch cover watertight pressure device is as follows:

[0014] S1: The hatch cover equipped with an opening and closing mechanism and a locking mechanism is connected to the hatch coaming through a hinge.

[0015] S2: Start the opening and closing mechanism, first open the hatch cover to 5°, check whether the components interfere with each other or fail, if there is interference or failure, repair the failure or interference, if there is no interference or failure, continue to open the hatch cover to 45°, check again whether the components interfere with each other or fail, if there is interference or failure, repair the failure or interference, if there is no interference or failure, continue to open the hatch cover to the maximum angle of 91°, then confirm whether the supporting link is fully extended, after confirming that it is correct, close the hatch cover, and the locking mechanism locks the hatch cover and the hatch enclosure. In this step, an opening action is disassembled, and the action of "opening the hatch cover" is divided into multiple stages for testing, which can comprehensively and effectively test whether the hatch cover meets the requirements during the opening process.

[0016] S3: Weld the sealing cover to the hatch cover, connect the joint to the water pipe, open the stop valve, add water to the sealing cover and pressurize it. When the pressure reaches the test pressure, close the stop valve and maintain the pressure for 10 minutes. After 10 minutes, if the pressure value drops or water seepage is found, find the water seepage point and repair it, then repeat steps S1 and S2. If the pressure remains stable after 10 minutes, open the drain valve to drain the water and remove the sealing cover. Watertightness and water pressure are tested at the same time.

[0017] S4: After removing the sealing cover, repeat the operation in S2. This step is to recheck the hatch cover to avoid failure of the hatch cover during the water pressure and watertightness test and ensure that the hatch cover is finally qualified.

[0018] The test device structure of the present invention can test the action and watertight pressure at the same time through one device, and can effectively perform the action test in stages, disassemble the overall action, and perform the watertight water pressure test and the action test at the same time, thereby reducing the number of tests and reducing the difficulty and cost of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the test device of the present invention;

[0020] Figure 2 is a structural schematic diagram of the locking mechanism;

[0021] Figure 3 It is a structural schematic diagram of the opening and closing mechanism;

[0022] Figure 4 is a schematic diagram of the fixing fixture structure;

[0023] Figure 5 This is a schematic diagram of the hatch cover opened to the maximum angle;

[0024] Wherein: 1-hatch cover, 2-hatch enclosure, 3-sealing cover, 4-opening and closing mechanism, 5-locking mechanism, 6-connecting joint, 7-stop valve, 8-drain valve, 9-fixed tire frame, 11-fixed clamp, 12-support connecting rod, 13-first locking rod, 14-second locking rod, 15-third locking rod, 16-first fixing seat, 17-second fixing seat, 18-third fixing seat, 19-connecting plate, 20-nut, 21-screw, 22-first hydraulic cylinder, 23-triangular linkage member, 24-second hydraulic cylinder, 25-bottom plate. DETAILED DESCRIPTION

[0025] The present invention will be further described in conjunction with the accompanying drawings.

[0026] like Figure 1 A hydraulic hatch cover watertight pressure device as shown, Figure 1 As shown, there is a hatch cover, which is connected to the hatch coaming by a hinge, and the hatch coaming is fixed to the fixed tire frame by a fixing clamp, and the fixing clamp has an L-shaped connecting plate (such as Figure 4 As shown in the figure, one end of the connecting plate is fixed on the fixed tire frame, and a nut is welded on the other end. The inner thread of the nut is connected with a screw rod. The screw rod is tightened, and the screw rod presses against the base of the hatch coaming to fix the hatch coaming on the fixed tire frame. A sealing cover is fixed on the hatch cover, which completely wraps the hatch cover and covers the outer surface of the hatch cover. The sealing cover is hollow inside, and a connecting joint with a stop valve is arranged on the outer surface. The connecting joint is connected to the water pipe. A drain valve is also arranged at the end of the bottom of the sealing cover away from the hinge to drain the water inside the sealing cover.

[0027] The inner surface of the hatch cover is fixed with an opening and closing mechanism and a locking mechanism, such as Figure 2 As shown, the locking mechanism has a second hydraulic cylinder, the cylinder body of the second hydraulic cylinder is connected to the first locking rod of the first locking pin, the telescopic rod of the second hydraulic cylinder is connected to the second locking rod of the second locking pin, the third locking rod of the third locking pin is connected to the first locking rod through a triangular linkage component, and the third locking rod is perpendicular to the first locking rod. The first locking rod, the second locking rod, and the third locking rod are respectively fixed to the inner surface of the hatch cover through the first fixing seat, the second fixing seat, and the third fixing seat. The hatch enclosure is provided with circular holes corresponding to the first locking rod, the second locking rod, and the third locking rod. The first locking rod, the second locking rod, and the third locking rod are all inserted into the circular holes, and are in a locked state at this time. This locking mechanism drives the first locking pin, the second locking pin, and the third locking pin to be locked or unlocked at the same time through the telescopic movement between the telescopic rod of the second hydraulic cylinder and the cylinder body of the second hydraulic cylinder, and the operation of the triangular linkage component.

[0028] like Figure 3 As shown, the opening and closing mechanism has a first hydraulic cylinder and a supporting connecting rod. The cylinder body of the first hydraulic cylinder and one end of the supporting connecting rod are fixed on the bottom plate, the bottom plate is welded to the hatch coaming, and the other end of the supporting connecting rod and the telescopic rod of the first hydraulic cylinder are fixed on the inner surface of the hatch cover. The use of this opening and closing mechanism helps the test device to decompose an action when performing an action test, and effectively test the action of "opening the hatch cover".

[0029] The steps for testing the hydraulic hatch cover watertight pressure device are as follows:

[0030] S1: The hatch cover equipped with an opening and closing mechanism and a locking mechanism is connected to the hatch coaming through a hinge.

[0031] S2: Start the opening and closing mechanism, first open the hatch cover to 5°, check whether the components interfere with each other or fail, if there is interference or failure, repair the failure or interference, if there is no interference or failure, continue to open the hatch cover to 45°, check again whether the components interfere with each other or fail, if there is interference or failure, repair the failure or interference, if there is no interference or failure, continue to open the hatch cover to the maximum angle of 91°, then confirm whether the supporting link is fully extended, after confirming that it is correct, close the hatch cover, and the locking mechanism locks the hatch cover and the hatch enclosure. In this step, an opening action is disassembled, and the action of "opening the hatch cover" is divided into multiple stages for testing, which can comprehensively and effectively test whether the hatch cover meets the requirements during the opening process.

[0032] S3: Weld the sealing cover to the hatch cover, connect the joint to the water pipe, open the stop valve, add water to the sealing cover and pressurize it. When the pressure reaches the test pressure, close the stop valve and maintain the pressure for 10 minutes. After 10 minutes, if the pressure value drops or water seepage is found, find the water seepage point and repair it, then repeat steps S1 and S2. If the pressure remains stable after 10 minutes, open the drain valve to drain the water and remove the sealing cover. Watertightness and water pressure are tested at the same time.

[0033] S4: After removing the sealing cover, repeat the operation in S2. This step is to recheck the hatch cover to avoid failure of the hatch cover during the water pressure and watertightness test and ensure that the hatch cover is qualified in the end. Figure 5 As shown, the hatch cover is in the state when it is opened to the maximum angle.

[0034] The test device structure of the present invention can test the action and watertight pressure at the same time through one device, and can effectively perform the action test in stages, disassemble the overall action, and perform the watertight water pressure test and the action test at the same time, thereby reducing the number of tests and reducing the difficulty and cost of operation.

Claims

1. A method for testing a hydraulic hatch cover watertight pressure device, characterized in that: The test steps are as follows: S1: Connecting a hatch cover equipped with an opening and closing mechanism and a locking mechanism to a hatch coaming through a hinge; S2: Start the opening and closing mechanism, first open the hatch cover to 5°, check whether the components interfere with each other or fail, if so, repair the failure or interference, if not, continue to open the hatch cover to 45°, check again whether the components interfere with each other or fail, if so, repair the failure or interference, if not, continue to open the hatch cover to the maximum angle of 91°, then confirm whether the supporting link is fully extended, after confirming that it is correct, close the hatch cover, and the locking mechanism locks the hatch cover and the hatch coaming; S3: Weld and fix the sealing cover to the hatch cover, connect the joint to the water pipe, open the stop valve, add water to the sealing cover and pressurize it. When the pressure reaches the test pressure, close the stop valve and maintain the pressure for 10 minutes. After 10 minutes, if the pressure value drops or water seepage is found, find the water seepage point and repair it, then repeat steps S1 and S2. If the pressure remains stable after 10 minutes, open the drain valve to drain the water and remove the sealing cover. S4: After removing the sealing cover, repeat the operation in S2; The top of the hatch coaming (2) is hinged to the hatch cover (1) through a hinge, a sealing cover (3) is fixed on the outer surface of the hatch cover, the sealing cover is hollow inside, a connecting joint (6) with a stop valve (7) is fixed on the outer surface of the sealing cover, a drain valve (8) is arranged at the end of the bottom of the sealing cover away from the hinge, and a locking mechanism (5) and an opening and closing mechanism (4) are fixed through the inner surface of the hatch cover; The opening and closing mechanism comprises a supporting connecting rod (12) and a first hydraulic cylinder (22), one end of the supporting connecting rod and a cylinder body of the first hydraulic cylinder are connected to the hatch coaming via a bottom plate (25), and the other end of the supporting connecting rod and a telescopic rod of the first hydraulic cylinder are fixed to the inner surface of the hatch cover; The locking mechanism has a second hydraulic cylinder (24), the cylinder body of the second hydraulic cylinder is connected to the first locking rod (13) of the first locking pin, the telescopic rod of the second hydraulic cylinder is connected to the second locking rod (14) of the second locking pin, the rod body of the first locking rod is connected to the third locking rod (15) of the third locking pin through a triangular linkage component (23), the third locking rod is perpendicular to the first locking rod, and the first locking rod, the second locking rod and the third locking rod are fixed to the inner surface of the hatch cover through a first fixing seat (16), a second fixing seat (17) and a third fixing seat (18) respectively.

2. A method for testing a hydraulic hatch cover watertight pressure device according to claim 1, characterized in that: The sealing cover covers the hatch cover and wraps the hatch cover.

3. A method for testing a hydraulic hatch cover watertight pressure device according to claim 1, characterized in that: One end of the connecting joint is communicated with the interior of the sealing cover, and the other end is communicated with the external water pipe.

4. A method for testing a hydraulic hatch cover watertight pressure device according to claim 1, characterized in that: The bottom plate is a long strip plate, the end of the supporting connecting rod and the hydraulic cylinder body are welded to the bottom plate, and the bottom plate is welded to the hatch coaming.

5. The method for testing a hydraulic hatch cover watertight pressure device according to claim 1, characterized in that: Round holes are provided at the hatch coaming corresponding to the first locking rod, the second locking rod and the third locking rod, and the ends of the first locking rod, the second locking rod and the third locking rod are inserted into the round holes.

6. A method for testing a hydraulic hatch cover watertight pressure device according to claim 1, characterized in that: The hatch coaming is fixed on the fixed tire frame (9) through a fixing clamp (11).

7. A method for testing a hydraulic hatch cover watertight pressure device according to claim 6, characterized in that: The fixing fixture has an L-shaped connecting plate (19), one end of which is fixed on the fixing frame, and the other end of which is fixed with a nut (20), and a screw rod (21) is inserted into the nut and pressed against the hatch coaming base.

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