Marine watertight cover

Abstract

The utility model discloses a marine watertight cover, which relates to the technical field of marine sealing, and comprises an alloy cover body, a negative pressure sucker and a vacuum pump, one side of the alloy cover body is connected with toughened glass in a penetrating manner, the upper side and the lower side of the alloy cover body are respectively provided with a handle, and the outer side of the alloy cover body is provided with a distance adjusting mechanism. The distance adjusting mechanism controls the distance and the number of the negative pressure suction cups according to the width of a test part of the ship, the adsorption stability of the alloy cover body is improved, a test mechanism is arranged on one side of the alloy cover body, the test mechanism conducts vacuumizing treatment on the seal welding part of the ship, and then the sealing performance of the welding part is detected. In the using process, the distance between the negative pressure suction cups is adjusted according to the size and area of the welding seam of the ship, then the stability of equipment fixing and butt joint before equipment is started is ensured, the equipment is very easy to obtain in a segmented building workshop, and the welding seam of the steel plate of the whole ship can be vacuumized in small segments for leakage detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ship sealing, in particular to marine watertight cover. BACKGROUND

[0002] In shipbuilding, the pre-tightness test of the section has great significance for shortening the construction period, quality, safety, cost, painting and other aspects. The pre-tightness test of the ship section mainly includes: angle welding seam inflation test, vacuum test, coloring and magnetic particle detection, etc. The vacuum test is a simple, efficient and fast pre-tightness test method.

[0003] The watertight patch is irregular in structure, and the existing technology does not use the vacuum test method to detect its pre-tightness, and the specifications of the ship exist differences. In the use process of the watertight cover, it is difficult to adjust the positioning range of the watertight cover according to the positioning demand, which affects the stability of the equipment positioning before the test of the watertight cover. SUMMARY

[0004] The utility model discloses a marine watertight cover to solve the above defects caused by the prior art.

[0005] The marine watertight cover comprises an alloy cover body, a negative pressure suction disc and a vacuum pump, one side of the alloy cover body is connected with toughened glass in penetration, the upper and lower sides of the alloy cover body are provided with handles, the outer side of the alloy cover body is provided with a pitch adjusting mechanism, the pitch adjusting mechanism controls the spacing and quantity of the negative pressure suction disc according to the width of the test part of the ship, increases the stability of the alloy cover body adsorption, one side of the alloy cover body is provided with a test mechanism, the test mechanism carries out vacuum treatment to the sealed welding part of the ship, and then detects the sealing performance of the welding part.

[0006] Preferably, the pitch adjusting mechanism comprises a guide rail, a fastening hole, a positioning seat, a negative pressure suction disc and a fastener, the guide rail is symmetrically arranged on the outer side of the alloy cover body, the outer side of the guide rail is provided with fastening holes at equal intervals, the outer side of the guide rail is symmetrically provided with a positioning seat, the outer side of the positioning seat is connected with the negative pressure suction disc, and one side of the positioning seat is connected with the fastener in penetration.

[0007] Preferably, the negative pressure suction disc is connected with the outer side of the guide rail through the positioning seat arranged on one side.

[0008] Preferably, the guide rail is connected with one side of the positioning seat through the fastener arranged in penetration on one side.

[0009] Preferably, the testing mechanism comprises a vacuum pump, an air exhaust pipe, an air inlet valve, rubber pads, an air outlet valve and a pressure gauge, the vacuum pump is installed on one side of the alloy cover, the one side of the alloy cover is connected with the air inlet valve, the outer side of the vacuum pump is provided with the air outlet valve, the extraction end of the vacuum pump is connected with the air exhaust pipe, the rubber pads are distributed in a rectangular shape on one side of the alloy cover, and the one side of the vacuum pump is connected with the pressure gauge.

[0010] Preferably, the vacuum pump is communicated with the inside of the alloy cover through the air exhaust pipe connected on one side.

[0011] Compared with the prior art, the alloy cover has the following advantages:

[0012] 1、In the use process, the distance of the negative pressure suction disc is adjusted according to the size and area of the welding seam of the ship, so that the stability of the equipment is ensured before the equipment is started, and the equipment is fixed and docked, which is easy to achieve in a segmented construction workshop, the negative pressure suction disc can stably maintain the adsorption state of the object, and the stability of the vacuum pump arranged on one side of the alloy cover during operation is ensured.

[0013] 2、The alloy cover is provided with rubber pads on one side, the surface contact degree of the ship is increased, when the internal pressure of the alloy cover increases, the rubber pads are tightly adsorbed on the ship body or the T-shaped material under the action of vacuum pressure, a T-shaped material watertight patch is formed, a certain liquid is applied to directly monitor the welding seam, the test method is simple and reliable, the quality is easy to control, and the working efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a whole three-dimensional structure schematic view of the utility model.

[0015] Fig. 2 It is a structure schematic view of the alloy cover itself in the utility model.

[0016] Fig. 3 It is a front view structure schematic view of the alloy cover in the utility model.

[0017] Fig. 4 It is a top view structure schematic view of the alloy cover in the utility model.

[0018] Among them:

[0019] 1, alloy cover;2, tempered glass;3, guide rail;4, handle;5, fastening hole;6, positioning seat;7, negative pressure suction disc;8, distance adjusting mechanism;9, vacuum pump;10, air exhaust pipe;11, air inlet valve;12, rubber pad;13, air outlet valve;14, testing mechanism;15, pressure gauge;16, fastener. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] As shown in Figs. 1 to 4 The utility model relates to a marine watertight cover, including alloy cover body 1, negative pressure sucking disc 7 and vacuum pump 9, one side of alloy cover body 1 is connected with toughened glass 2, the upper and lower sides of alloy cover body 1 are all provided with handle 4, the outside of alloy cover body 1 is provided with distance adjusting mechanism 8, distance adjusting mechanism 8 controls the interval and quantity of negative pressure sucking disc 7 according to the width of the test part of the ship, increases the stability of alloy cover body 1 adsorption, one side of alloy cover body 1 is provided with test mechanism 14, test mechanism 14 carries out vacuumizing treatment to the sealed welding part of the ship, and then detects the sealing property of the welding part.

[0022] In the embodiment, the distance adjusting mechanism 8 includes guide rails 3, fastening holes 5, positioning seats 6, negative pressure sucking discs 7 and fasteners 16, the guide rails 3 are symmetrically arranged on the outer side of the alloy cover body 1, the fastening holes 5 are equidistantly arranged on the outer side of the guide rails 3, the positioning seats 6 are symmetrically arranged on the outer side of the guide rails 3, the negative pressure sucking discs 7 are connected to the outer side of the positioning seats 6, and the fasteners 16 are connected to one side of the positioning seats 6.

[0023] In the embodiment, the negative pressure sucking disc 7 is connected to the outer side of the guide rail 3 through the positioning seat 6 arranged on one side, and the positioning seat 6 and the negative pressure sucking disc 7 are quickly positioned and assembled through the guide rail 3.

[0024] In the embodiment, the guide rail 3 is connected to one side of the positioning seat 6 through the fastener 16 arranged on one side, and the positioning seat 6 is positioned through the fastener 16 arranged on the outer side of the guide rail 3.

[0025] In the embodiment, the test mechanism 14 includes a vacuum pump 9, an air suction pipe 10, an air inlet valve 11, rubber pads 12, an air outlet valve 13 and a pressure gauge 15, the vacuum pump 9 is installed on one side of the alloy cover body 1, the air inlet valve 11 is connected to one side of the alloy cover body 1, the air outlet valve 13 is arranged on the outer side of the vacuum pump 9, the air suction pipe 10 is connected to the vacuum pump 9, the rubber pads 12 are arranged on one side of the alloy cover body 1 in a rectangular shape, and the pressure gauge 15 is connected to one side of the vacuum pump 9.

[0026] In the embodiment, the vacuum pump 9 is communicated with the inside of the alloy cover body 1 through the air suction pipe 10 connected to one side, and the inside gas is extracted through the air suction pipe 10 to form a vacuum environment.

[0027] The marine watertight cover includes the following working contents when actually applied.

[0028] Step 1: clean the hull structure, remove the dirt and sundries on the surface, so as to avoid affecting the test results, apply a certain amount of foam liquid on the welding seam of the ship, then select the alloy cover body 1 with the corresponding size according to the welding area, hold the alloy cover body 1 by the handle 4, adjust the distance between the groups of negative pressure suction discs 7 by pushing the positioning seat 6 to slide on the outside of the guide rail 3, and then place the ship body to be adsorbed on the surface of the negative pressure suction disc 7.

[0029] Step 2: insert the fastener 16 into the fastening hole 5, position the outside of the positioning seat 6 and the guide rail 3, then place the ship body to be adsorbed on the surface of the negative pressure suction disc 7, due to the existence of negative pressure, air is gradually sucked away from the surface of the negative pressure suction disc 7, forming a vacuum state, so that the groups of negative pressure suction discs 7 adsorb the outside of the alloy cover body 1, the operator can open the power supply end of the vacuum pump 9, and observe the inside cover of the alloy cover body 1 through the tempered glass 2.

[0030] Step 3: start the vacuum pump 9 to start pumping, and observe the reading change of the pressure gauge 15. During the pumping process, the vacuum pump 9 extracts the air in the alloy cover body 1 through the air suction pipe 10 arranged on one side, and discharges the air in the alloy cover body 1 through the exhaust valve 13 arranged on one side of the vacuum pump 9. The pumping speed should be kept stable, and the reading of the pressure gauge 15 should be observed at all times to ensure the accuracy and safety of the test.

[0031] Step 4: when the reading of the pressure gauge 15 reaches the predetermined vacuum degree, close the pressure gauge 15 and keep for a period of time to observe whether the hull structure leaks, carefully check the hull structure, and observe whether there are bubbles, water seepage and other abnormal phenomena. If abnormal conditions are found, they should be recorded and marked in detail for subsequent maintenance, then open the air inlet valve 11 to restore the internal pressure of the alloy body 1.

[0032] Therefore, the above disclosed embodiments are only examples and are not the only ones. All changes within the scope of the present application or within the scope equivalent to the present application are included in the present application.

Claims

1. A watertight cover for a ship, characterized in that: Including alloy cover (1), negative pressure suction cup (7) and vacuum pump (9), one side of alloy cover (1) is connected through toughened glass (2), both upper and lower sides of alloy cover (1) are provided with handle (4), the outer side of alloy cover (1) is provided with distance adjusting mechanism (8), the distance adjusting mechanism (8) controls the spacing and quantity of negative pressure suction cup (7) according to the width of the test site of the ship, increases the stability of alloy cover (1) adsorption, one side of alloy cover (1) is provided with test mechanism (14), the test mechanism (14) carries out vacuumizing treatment to the sealed welding part of the ship, and then detects the sealing property of the welding part.

2. A marine watertight cover according to claim 1, characterised in that: The distance adjusting mechanism (8) comprises guide rails (3), fastening holes (5), positioning seats (6), negative pressure suction cups (7) and fasteners (16), the guide rails (3) are symmetrically arranged on the outer side of the alloy cover (1), the fastening holes (5) are equidistantly formed on the outer side of the guide rail (3), the positioning seats (6) are symmetrically arranged on the outer side of the guide rail (3), the negative pressure suction cups (7) are connected to the outer side of the positioning seat (6), and the fasteners (16) are connected to one side of the positioning seat (6).

3. A marine watertight cover according to claim 2, characterised in that: The negative pressure suction cup (7) is connected to the outer side of the guide rail (3) through the positioning seat (6) arranged on one side.

4. A marine watertight cover according to claim 2, characterised in that: The guide rail (3) is connected to one side of the positioning seat (6) through the fastener (16) arranged on one side.

5. The marine watertight cover of claim 1, wherein: The test mechanism (14) comprises a vacuum pump (9), an air suction pipe (10), an air inlet valve (11), a rubber pad (12), an air outlet valve (13) and a pressure gauge (15), the vacuum pump (9) is installed on one side of the alloy cover (1), one side of the alloy cover (1) is connected through the air inlet valve (11), the outer side of the vacuum pump (9) is provided with the air outlet valve (13), the vacuum pump (9) is connected with the air suction pipe (10), the rubber pad (12) is arranged on one side of the alloy cover (1) in a rectangular shape, and the vacuum pump (9) is connected with the pressure gauge (15) on one side.

6. A marine watertight cover according to claim 4, characterised in that: The vacuum pump (9) is communicated with the inside of the alloy cover (1) through the air suction pipe (10) connected on one side.

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