Bow thruster tunnel cover

Abstract

The application belongs to the field of ship design, and particularly relates to a bow side thrust grid cover. The cover comprises a bow side thrust grid cover, a metal rod piece, a cylinder, a base A, a base B, and a base C. The bow side thrust grid cover is fixedly connected by the metal rod piece A. The metal rod piece of the bow side thrust grid cover is connected with the base A, the base B, and the base C. The base A, the base B, and the base C are fixedly connected with the cylinder. Compared with the prior art, the semicircular grid in the bow direction can block most marine organisms and ice pieces from entering the cylinder during normal navigation. The semicircular grid cover avoids the accumulation of marine organisms or ice pieces at the grid cover to the greatest extent, thereby avoiding the risk of failure or damage of the bow side thrust device due to poor water flow during operation. The grid cover is detachably connected with the cylinder through bolts, which is beneficial to maintenance. The grid cover uses a waterline as a reference line, which is more consistent with the direction of water flow, and improves the efficiency of preventing marine organisms and ice pieces.

Description

Technical Field

[0001] This invention belongs to the field of ship design, and specifically relates to a bow thrust hatch cover. Background Technology

[0002] Due to maneuverability requirements, ships are usually equipped with bow thrusters at the bottom of the bow for more flexible adjustment of direction or positioning operations. The bow thrusters are installed in the hull, with openings at both ends of the hull directly connected to the seawater.

[0003] During normal navigation, the bow thrusters are usually stopped.

[0004] When there are a large number of marine organisms in the ocean, or when sailing in polar regions, marine organisms or ice fragments pushed out by the bow thruster can easily enter the bow thruster hull as the water flows. Seaweed and other organisms can become entangled in the propeller, and ice fragments can impact and wear down the propeller blades, causing damage to the bow thruster.

[0005] Typically, some ships use methods such as installing grating covers to prevent marine life and large pieces of ice from entering the hull, or to reduce the speed of ice fragments after they enter, thereby reducing their impact on the propeller blades.

[0006] However, the existing grid cover technology also has significant drawbacks. When marine life is too dense or too much ice fragments enter the cylinder, if the bow thruster needs to be activated at the same time, the ice fragments and marine life can easily clog the grid cover, blocking the water flow, causing the bow thruster to fail or even be damaged, posing a great risk to navigation safety.

[0007] Therefore, there is a need to provide a bow-side pushgate hatch to solve the problems existing in the prior art. Summary of the Invention

[0008] The purpose of this invention is to provide a bow thruster hatch cover that can provide some protection against marine life and ice debris, and can also prevent extreme situations such as bow thruster failure and damage. It can be widely used in various types of marine vessels, especially for vessels navigating ice-covered areas and icebreakers.

[0009] Technical solution to achieve the purpose of this invention:

[0010] A bow thrust grid hatch cover, the hatch cover comprising a bow thrust grid cover, a metal rod, a cylinder, a base A, a base B, and a base C;

[0011] The bow-side push grid cover is fixedly connected by metal rods A. The metal rods of the bow-side push grid cover are connected to bases A, B, and C. Bases A, B, and C are fixedly connected to the cylinder.

[0012] The aforementioned bow-side thrust grille cover is a semi-circular or fan-shaped structure welded together from several metal rods A.

[0013] The metal rods of the bow-side pusher grille cover are connected to base A, base B and base C by bolts.

[0014] The bases A, B, and C are connected to the cylinder by welding.

[0015] There are two bases A, which are symmetrically arranged at both ends of the cylindrical body, and the line connecting them forms a 90° angle with the waterline.

[0016] The line connecting the base B and the center of the circle is parallel to the waterline and is located on one side of the bow of the center of the ship.

[0017] The waterline plane has a certain angle with the parallel line to the bottom of the ship.

[0018] There are several bases C, which are evenly distributed or arranged at fixed intervals between bases A and base B.

[0019] The bow-side pusher grille cover covers the circular surface formed by 1 / 2 of the cylinder.

[0020] A pair of bases D are set on the stern side of base A. One end of metal rod B is welded to metal rod A connected to base A, and the other end is bolted to base D, making the entire bow-side pusher grille cover structure more stable. Base A, base B, base C, and base D are formed by corner welding of pads and uprights. The pads are welded to the inside of the cylinder. The uprights have bolt holes and are bolted to metal rod A or metal rod B.

[0021] The beneficial technical effects of this invention are as follows:

[0022] 1) Compared with the prior art, the semi-circular grille in the bow direction of the present invention effectively protects the bow thrust device during normal navigation, that is, when the water flows from the bow to the stern relative to the hull, and can block most marine organisms, ice fragments and other debris from entering the cylinder.

[0023] 2) Compared with the prior art, the semi-circular grid cover of the present invention avoids the accumulation of marine organisms or ice fragments at the grid cover to the greatest extent, thereby avoiding the risk of failure or damage to the bow thruster due to poor water flow during operation;

[0024] 3) Compared with the prior art, the grid cover and the cylinder are connected by bolts, which is detachable and facilitates maintenance;

[0025] 4) Compared with the prior art, the grating cover of the present invention uses the waterline as the reference line, which is more in line with the direction of water flow and improves the efficiency of preventing marine organisms and ice fragments. Attached Figure Description

[0026] Figure 1 A schematic diagram of a bow-side thrust rack hatch provided by the present invention;

[0027] Figure 2 A schematic diagram of a bow-side thrust rack cover base provided by the present invention;

[0028] In the diagram: 01-Bow side thrust grid cover; 02-Metal rod A; 03-Cylinder; 04-Waterline; 05-Board parallel line; 06-Base A; 07-Base B; 08-Base C; 09-Base D; 10-Metal rod B; 11-Plate; 12-Upright plate; 13-Bolt. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments described in the present invention without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1 As shown, the present invention provides a bow thrust grid hatch cover, which includes a bow thrust grid cover 01, a metal rod A02, a cylinder 03, a waterline surface 04, a base A06, a base B07, a base C08, a base D09, and a metal rod B10.

[0031] The bow-side push grid cover 01 is a semi-circular or fan-shaped structure formed by fixed connection of metal rods A02. The metal rods A02 of the bow-side push grid cover 01 are connected to the bases A06, B07 and C08. The bases A06, B07 and C08 are fixedly connected to the cylinder 03.

[0032] The bow side pusher grille cover 01 is a semi-circular or fan-shaped structure welded together from several metal rods A02.

[0033] Steel rods A02 are typically round or square steel.

[0034] The metal rod A02 of the bow side pusher grille cover 01 is connected to the base A06, base B07 and base C08 by bolts.

[0035] Base A06, base B07, and base C08 are connected to cylinder 03 by welding.

[0036] There are two bases A06, symmetrically arranged at both ends of the circular cylinder 03, and the line connecting them forms a 90° angle with the waterline 04.

[0037] The line connecting the base B07 and the center of the circle is parallel to the waterline plane 04 and is located on one side of the bow of the center of the ship.

[0038] The waterline 04 and the parallel line 05 of the ship's bottom form a certain angle.

[0039] There are several bases C08, which are evenly distributed or arranged at fixed intervals between bases A06 and B07.

[0040] The bow-side pusher grille cover 01 covers the circular surface formed by 1 / 2 of the cylindrical body 03;

[0041] A pair of bases D09 are installed on one side of the stern of base A06.

[0042] One end of the metal rod B10 is welded to the metal rod A02 of the connecting base A06, and the other end is bolted to the base D09, making the entire bow side pusher grille cover 01 structure more stable.

[0043] like Figure 2 As shown, base A06, base B07, base C08, and base D09 are formed by corner welding of pad 11 and upright plate 12. Pad 11 is welded to the inside of cylinder 03. Upright plate 12 has bolt holes and is connected to metal rod A02 or metal rod B10 by bolts 13.

[0044] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. All contents not described in detail in the present invention can be derived from existing technologies.

Claims

1. A bow side thrust bay cover, characterized in that: The hatch includes a bow side thrust grille cover (01), metal rod A (02), cylinder (03), base A (06), base B (07), and base C (08); The bow thrust grid cover (01) is fixedly connected by metal rods A (02). The metal rods A (02) of the bow thrust grid cover (01) are connected to bases A (06), B (07) and C (08). Bases A (06), B (07) and C (08) are fixedly connected to the cylinder (03). The bow thrust grid cover (01) is a semi-circular or fan-shaped structure welded from several metal rods A (02). The bow thrust grid cover (01) covers the circular surface formed by 1 / 2 of the cylinder (03). The line connecting the base B (07) and the center of the circle is parallel to the waterline (04) and is arranged on one side of the bow of the center of the circle.

2. The bow side thrust hatch according to claim 1, characterized in that: The metal rod A (02) of the bow side pusher grille cover (01) is connected to the base A (06), base B (07) and base C (08) by bolts.

3. A bow-side pushgate hatch according to claim 2, characterized in that: The base A (06), base B (07), base C (08) are connected to the cylinder (03) by welding.

4. A bow-side pushgate hatch according to claim 3, characterized in that: There are two bases A (06), which are symmetrically arranged at both ends of the circular cylinder (03), and the line connecting them forms a 90° angle with the waterline (04).

5. A bow-side pushgate hatch according to claim 4, characterized in that: The waterline (04) has a certain angle with the parallel line (05) of the ship's bottom.

6. A bow-side pushgate hatch according to claim 5, characterized in that: There are several bases C (08), which are evenly distributed or arranged at a fixed distance between bases A (06) and bases B (07).

7. A bow-side pushgate hatch according to claim 6, characterized in that: A pair of bases D (09) are set on the stern side of base A (06). One end of metal rod B (10) is welded to metal rod A (02) connecting base A (06), and the other end is bolted to base D (09), making the entire bow side push grid cover (01) structure more stable. Base A (06), base B (07), base C (08), and base D (09) are formed by fillet welding of pad (11) and upright plate (12). Pad (11) is welded to the inside of cylinder (03). Upright plate (12) has bolt holes and is connected to metal rod A (02) or metal rod B (10) by bolts (13).

Images