Temporary sealing device for ship bulkhead hole

Abstract

According to the temporary sealing device for the ship bulkhead hole, a watertight cover is arranged on the side, where pressure is applied, of a bulkhead, and the watertight cover is detachably connected with the bulkhead through a plurality of fixing assemblies; the watertight cover comprises a cover body, a sealing ring is arranged on the side face, close to one side of the bulkhead hole, of the cover body and surrounds the bulkhead hole, the sealing ring is of a compression deformation structure, at least one set of plastic holes distributed in a circular mode are formed in the sealing ring from inside to outside in the radial direction of the sealing ring, and the plastic holes are communicated through air pipes. The plastic hole in the innermost ring is communicated with the outside through an air pipe; the attaching face of the sealing ring and the bulkhead is a honeycomb face, the thickness of the sealing ring is not changed in the radial direction, and the depths of a plurality of troughs on the honeycomb face are gradually increased from outside to inside in the radial direction. According to the watertight cover, the open hole is temporarily blocked by arranging the watertight cover on one side of the open hole, so that the temporary sealing requirement of a ship in the building process is met, and the building cost of the ship is reduced.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, and specifically relates to a temporary sealing device for a hole in a ship's bulkhead. Background Technology

[0002] During ship tightness testing and ship construction and assembly, temporary sealing of process holes, light-reducing holes, or manholes is often required. Existing temporary sealing methods mostly use welded temporary steel plates or recommended plugs, which have the following drawbacks: 1. Poor sealing reliability, especially when there is a pressure difference between the two sides of the bulkhead, which can easily lead to side leakage; 2. Low installation and dismantling efficiency, requiring a lot of labor and time costs; 3. The temporary sealing structure cannot adapt to different opening sizes and shapes, resulting in increased construction costs.

[0003] Therefore, there is an urgent need for a temporary sealing device for bulkhead holes that can be installed quickly, provides reliable sealing, and is reusable, in order to address the temporary sealing requirements during shipbuilding, reduce construction costs, and improve construction efficiency. Summary of the Invention

[0004] To address the above problems, the present invention provides a temporary sealing device for holes in ship bulkheads.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A temporary sealing device for a bulkhead hole in a ship includes a watertight cover and a fixing component. The watertight cover is located on the pressure-bearing side of the bulkhead, and the fixing component is located on the other side of the bulkhead hole. The watertight cover and the fixing component are detachably connected. The bulkhead wall surrounding the bulkhead hole is located between the fixing component and the watertight cover, and the fixing component and the watertight cover are tightly attached to the bulkhead wall surrounding the bulkhead hole.

[0006] Furthermore, the watertight cover includes a cover body, on the side of the cover body near the bulkhead hole, a sealing ring is provided around the bulkhead hole, the sealing ring is a compression deformation structure, and at least one set of circularly distributed plastic holes are provided inside the sealing ring along its radial direction from the outside to the inside, each set of plastic holes is connected to each other through an air pipe, and the plastic hole located in the innermost circle is connected to the outside through an air pipe; on the contact surface between the sealing ring and the bulkhead, there are a number of regularly arranged honeycomb-shaped plastic grooves, the valley depth of the honeycomb-shaped plastic grooves gradually increases radially from the outside to the inside, and the thickness of the sealing ring remains constant radially.

[0007] Furthermore, the fixing component is located on the other side of the bulkhead hole, opposite to the watertight cover. The fixing component is detachably connected to the cover, and the four sides of the fixing component are engaged with the bulkhead around the bulkhead hole.

[0008] Furthermore, the fixing component includes a fixing body, and the fixing body and the cover are symmetrically provided with multiple sets of connecting components through the opposite portions of the bulkhead holes.

[0009] Furthermore, the connecting assembly includes a connecting base, on which a connecting rod is connected and rotates up and down. The free end of the connecting rod passes through the fixing body and is detachably connected to the fixing body.

[0010] Furthermore, the connecting rod is a screw rod, which is connected to the fixing body through a nut and a fastening cap, and a washer is provided between the nut and the fastening cap.

[0011] Furthermore, the fixed base is a corner bracket that is fixed symmetrically and mirror-imagely to the side of the cover near the bulkhead. One end of the screw extends between the two corner brackets and is rotatably connected to the corner bracket by bolts.

[0012] Furthermore, the fixing body is either a fixing plate or a set of multiple support rods arranged in a crisscross pattern.

[0013] Furthermore, when the fixing body is composed of multiple support rods arranged vertically and horizontally, each support rod extends from both ends of the bulkhead hole. Each support rod is symmetrically provided with multiple long screw holes extending along its length direction. Each long screw hole is opposite to a connecting component located on the sealing cover. The connecting rod passes through the long screw hole. The inner width of the long screw hole is greater than or equal to 1.2 times the outer diameter of the screw rod, and the inner length is greater than or equal to 3 times the outer diameter of the screw rod. The ratio of the support rod length L to the bulkhead hole width D is 1.2~1.5:1.

[0014] Furthermore, a sealing sheet with an inner ring shape identical to its outer ring shape is fixed to the outer periphery of the cover. The outer surface of the sealing sheet is a concave arc surface, and the outer periphery of the inner surface of the sealing sheet is tightly fitted to the cabin wall.

[0015] Furthermore, the cover body is provided with intersecting reinforcing ribs on the side near the bulkhead hole.

[0016] The temporary sealing device for ship bulkhead openings of the present invention temporarily seals the opening by setting a watertight cover on one side of the opening, thereby meeting the temporary sealing needs of the ship during the construction process, reducing the ship construction cost, and is simple to operate and has prospects for widespread application. Attached Figure Description

[0017] Figure 1 This is a front view of the temporary sealing device for the ship bulkhead hole according to the present invention.

[0018] Figure 2This is a left view of the temporary sealing device for the ship bulkhead hole according to the present invention.

[0019] Figure 3 for Figure 2 View from the E direction.

[0020] Figure 4 This is the front view of the cover.

[0021] Figure 5 for Figure 4 Views in the CC and DD directions.

[0022] Figure 6 This is a schematic diagram of the longitudinal section of the sealing ring described in this invention.

[0023] Among them, 1-bulan, 2-cover, 3-sealing ring, 4-plastic hole, 5-angle bracket, 6-bolt, 7-waist plate, 8-nut, 9-fastening cap, 10-screw, 11-vertical support rod, 12-horizontal support rod, 13-reinforcing rib, 14-long screw hole, 15-manhole, 16-air pipe, 17-sealing plate, 18-handle, 19-honeycomb plastic groove, 20-pad block. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1-4 As shown, a temporary sealing device for a bulkhead hole of a ship includes a watertight cover and a fixing component. The watertight cover is located on the pressure-bearing side of the bulkhead, and the fixing component is located on the other side of the bulkhead hole. The watertight cover and the fixing component are detachably connected. The bulkhead wall around the bulkhead hole is located between the fixing component and the watertight cover, and the fixing component and the watertight cover are tightly attached to the bulkhead wall around the bulkhead hole.

[0026] The watertight cover is placed inside the compartment first, and then secured to the outside with fixing components, achieving single-sided operation to seal the opening in the empty compartment.

[0027] The watertight cover is located on the side of the bulkhead hole that experiences pressure from the opposite side. The watertight cover is detachably connected to the bulkhead 1 via multiple fixing components. The watertight cover includes a cover body 2. A sealing ring 3 is provided on the side of the cover body 2 near the bulkhead hole, surrounding the bulkhead hole. The sealing ring 3 is a compression deformation structure. Inside the sealing ring 3, at least one set of circularly distributed plastic holes 4 are provided radially from the outside to the inside. Each set of plastic holes 4 is connected to each other via an air pipe 16, and the innermost plastic hole 4 is connected to the outside via an air pipe 16. The contact surface between the sealing ring 3 and the bulkhead 1 is a corrugated surface. The thickness of the sealing ring 3 remains constant radially, and the depth of multiple troughs on the corrugated surface gradually increases radially from the outside to the inside.

[0028] Understandably, the sealing ring 3 can be made of soft rubber with several parallel plastic holes 4 inside. The holes are connected by rigid, ductile air pipes 16. When the sealing ring 3 is compressed, it deforms. The plastic holes 4 provide extension space for structural deformation, and the air pipes 16 are for venting the air inside the plastic holes 4. The side in contact with the bulkhead 1 has several regularly arranged honeycomb-shaped plastic grooves. The depth of the honeycomb-shaped plastic grooves gradually increases radially from the outside to the inside, and the thickness of the sealing ring remains constant radially. This is to balance the pressure, because the watertight cover deforms and bulges outward under the pressure of bolts and air / water pressure. Thus, the inner edge is subjected to greater force and the outer edge is subjected to less force, so the inner edge has a high trough and a small volume. This can minimize the difference in compression height between the inner and outer edges after deformation, and the force is evenly distributed to prevent edge warping and air leakage.

[0029] Furthermore, the fixing component is located on the other side of the bulkhead hole, opposite to the cover 2. The fixing component is detachably connected to the cover 2, and the four sides of the fixing component are engaged with the bulkhead 1 around the bulkhead hole.

[0030] In some embodiments, the fixing assembly includes a fixing body, and the fixing body and the cover 2 are symmetrically provided with multiple sets of connecting assemblies through the opposite portions of the bulkhead holes; the connecting assembly includes a connecting base, and a connecting rod that is rotatably disposed on the connecting base is connected to the connecting base, and the free end of the connecting rod passes through the fixing body and is detachably connected to the fixing body.

[0031] More specifically, the fixing body is a fixing plate or a combination of multiple support rods arranged in a crisscross pattern. For example... Figure 2As shown, when the fixing body is composed of multiple vertical support rods 11 and horizontal support rods 12 arranged in a vertical and horizontal pattern, the horizontal support rods 12 are placed outside the vertical support rods 11. Each support rod extends through the bulkhead hole at both ends. A hard rubber pad is provided between the ends of the horizontal support rods 12 and the bulkhead to keep the support rods on a horizontal plane. Each support rod has multiple elongated screw holes 14 extending along its length. Each elongated screw hole 14 is opposite to a connecting assembly located on the sealing cover. The connecting rod passes through the elongated screw hole 14. The connecting rod is a screw 10, which is connected to the fixing body via a nut 8 and a fastening cap 9. A washer 9 is provided between the nut 8 and the horizontal support rod 11. The fixing base is a bracket 5 fixed symmetrically and mirror-symmetrically on the side of the cover 2 near the bulkhead 1. One end of the screw 10 extends between two brackets 5 and is rotatably connected to the bracket 5 via a bolt 6. The inner width of the long screw hole 14 is greater than or equal to 1.2 times the outer diameter of the screw 10, and the inner length is greater than or equal to 3 times the outer diameter of the screw 10. The length L of the support rod and the width D of the bulkhead hole are 1.2~1.5:1.

[0032] Furthermore, a sealing sheet 17 with an inner ring shape that is the same as the outer ring shape is fixed on the outer periphery of the cover 2. The outer side of the sealing sheet 17 is a concave arc surface, and the outer periphery of the inner side of the sealing sheet 17 is tightly fitted to the bulkhead 1.

[0033] Understandably, the sealing sheet 17 can be a rigid rubber material, which is attached around the outer edge of the cover 2. The side in contact with the bulkhead 1 is coated with adhesive. When the cover is closed, the sealing sheet 17 is stuck to the bulkhead 1 and is tightly sealed to the bulkhead 1 under water / air pressure. Thus, an absolutely dry space is formed between the sealing sheet 17 and the sealing ring 3, which is a supplementary means of sealing.

[0034] Furthermore, the sealing cover is provided with intersecting reinforcing ribs 13 on the side near the bulkhead hole.

[0035] This design, with the addition of a grid-shaped reinforcing rib 13 to the sealing cover, is to prevent plastic deformation of the cover body 2, also known as permanent deformation. It is a protective measure to ensure that the sealing cover can be reused.

[0036] Furthermore, two pull rings are provided in both the horizontal and vertical directions of the cover to solve the problem of installation and disassembly.

[0037] Those skilled in the art should understand that the above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A temporary sealing device for a ship's bulkhead hole, characterized in that, The device includes a watertight cover and a fixing component. The watertight cover is located on the pressure side of the bulkhead, and the fixing component is located on the other side of the bulkhead hole. The watertight cover and the fixing component are detachably connected. The bulkhead wall around the bulkhead hole is located between the fixing component and the watertight cover, and the fixing component and the watertight cover are tightly attached to the bulkhead wall around the bulkhead hole.

2. The temporary sealing device for ship bulkhead holes according to claim 1, characterized in that, The watertight cover includes a cover body, on the side of the cover body near the bulkhead hole, a sealing ring is provided around the bulkhead hole, the sealing ring is a compression deformation structure, and at least one set of circularly distributed plastic holes are provided inside the sealing ring along its radial direction from the outside to the inside, adjacent plastic holes are connected by an air pipe, and the innermost set of plastic holes is connected to the outside through an air pipe; on the contact surface between the sealing ring and the bulkhead, there are several regularly arranged honeycomb-shaped plastic grooves, the valley depth of the honeycomb-shaped plastic grooves gradually increases radially from the outside to the inside, and the thickness of the sealing ring remains constant radially.

3. The temporary sealing device for ship bulkhead holes according to claim 2, characterized in that, The fixing component includes a fixing body, and the fixing body and the cover are symmetrically provided with multiple sets of connecting components through the opposite portions of the bulkhead holes.

4. The temporary sealing device for ship bulkhead holes according to claim 3, characterized in that, The connecting assembly includes a connecting base, on which a connecting rod is connected and rotates up and down. The free end of the connecting rod passes through the fixing body and is detachably connected to the fixing body.

5. The temporary sealing device for ship bulkhead holes according to claim 4, characterized in that, The connecting rod is a screw rod, which is connected to the fixing body through a nut and a fastening cap, and a washer is provided between the nut and the fastening cap.

6. The temporary sealing device for ship bulkhead holes according to claim 5, characterized in that, The fixed base is a corner bracket that is fixed to the side of the cover near the bulkhead at intervals and mirror symmetrically. One end of the screw extends between the two corner brackets and is rotatably connected to the corner bracket by bolts.

7. The temporary sealing device for ship bulkhead holes according to claims 3-6, characterized in that, The fixing body is either a fixing plate or a set of multiple support rods arranged in a vertical and horizontal direction.

8. The temporary sealing device for ship bulkhead holes according to claim 7, characterized in that, When the fixed body is composed of multiple support rods arranged in a vertical and horizontal pattern, each support rod extends from both ends of the bulkhead hole. Each support rod is symmetrically provided with multiple long screw holes extending along its length direction. Each long screw hole is opposite to a connecting component located on the sealing cover. The connecting rod passes through the long screw hole. The inner width of the long screw hole is greater than or equal to 1.2 times the outer diameter of the screw rod, and the inner length is greater than or equal to 3 times the outer diameter of the screw rod. The ratio of the support rod length L to the bulkhead hole width D is 1.2~1.5:

1.

9. The temporary sealing device for ship bulkhead holes according to claim 1, characterized in that, A sealing sheet with an inner ring shape that is the same as the outer ring shape is fixed on the outer periphery of the cover. The outer surface of the sealing sheet is a concave arc surface, and the outer periphery of the inner surface of the sealing sheet is tightly fitted to the cabin wall.

10. The temporary sealing device for ship bulkhead holes according to claim 1, characterized in that, The cover body has intersecting vertical and horizontal reinforcing ribs on the side near the bulkhead hole.

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