High pressure flushing port sealing cap for boats

Abstract

The present invention relates to a high-pressure flushing port sealing cap for ships, comprising a sealing cap body and a fastener installed on the body, wherein the sealing cap body comprises a brim and a cap body made of polyurethane material, the brim is coaxially formed on the top of the cap body, the brim protrudes from the cap body, the bottom of the cap body is coaxially formed with a buffer groove protruding into the cap, the bottom of the buffer groove is a disc, a splicing seam is formed on the disc, and a ring groove is formed on the inner side wall of the cap body near the bottom of the cap body; the fastener is a fastening ring formed by a fastening ring sheet and a bolt threaded connection. The present invention uses a fastener with adjustable fastening strength to be installed on the sealing cap, which not only makes the sealing cap more firmly installed, but also greatly improves the sealing effect.

Description

Technical Field

[0001] The invention belongs to the field of shipbuilding, relates to sealing technology, and in particular to a sealing cap for a high-pressure flushing port of a ship. Background Art

[0002] The high-pressure flushing port of a scow is a thrust drainage port for pushing the scow forward. When not flushing, the high-pressure flushing port needs to be sealed and connected with a sealing cap to prevent water, mud, sand and gravel from flowing back into the scow from the flushing port and causing the scow to sink. The sealing caps in the prior art generally only simply adopt interference fit with the joints through tooling to achieve good sealing performance. With such a simple seal, water will still enter from the narrow gap between the sealing cap and the flushing port. Moreover, even if external reinforcement is adopted, spring reinforcement is generally adopted. The disadvantage of spring reinforcement is that the reinforcing force given by the spring is limited, and the spring is easy to fall off due to the pressure of water. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a high-pressure flushing port sealing cap for boats which has a simple structure, good sealing effect and is firmly installed.

[0004] The present invention solves the technical problem by adopting the following technical solutions:

[0005] A sealing cap for a high-pressure flushing port of a ship comprises a sealing cap body and a fastener installed on the body, wherein the sealing cap body comprises a brim and a cap body made of polyurethane material, the brim is coaxially formed on the top of the cap body, the brim protrudes from the cap body, a buffer groove protruding into the cap is coaxially formed on the bottom of the cap body, the bottom of the buffer groove is a round piece, a joint seam is formed on the round piece, and an annular groove is formed on the inner side wall of the cap body near the bottom position in the cap body; the fastener is a fastening ring formed by threaded connection of a fastening ring piece and a bolt.

[0006] Moreover, the two ends of the fastening ring are integrally bent outward and welded to form a fastening hole, a connecting column is fixed in the fastening hole, a threaded hole is integrally formed in the middle of the connecting column, and a bolt threadably connects the two threaded holes to form a fastening ring.

[0007] Moreover, an arc-shaped stopper is welded on the inner side wall at the position of the fastening hole of the fastening ring plate, and an upper limit plate and a lower limit plate are symmetrically formed at the upper and lower ends of the arc-shaped stopper to form an arc-shaped limit groove.

[0008] Moreover, the angle between the joints is 60°.

[0009] The advantages and positive effects of the present invention are:

[0010] 1. The present invention uses a fastener with adjustable fastening strength to be installed on the sealing cap, which not only makes the sealing cap more firmly installed, but also greatly improves the sealing effect.

[0011] 2. The present invention has an arc-shaped stopper welded on the inner wall of the fastening hole of the fastening ring plate, and the upper and lower ends of the arc-shaped stopper are symmetrically provided with upper limit plates and lower limit plates, so that the arc-shaped stopper forms an arc-shaped limit groove to prevent the bolt from wearing the cap body during rotation, thereby protecting the sealing cap body and extending the service life.

[0012] 3. The upper surface of the upper limit plate of the present invention is in close contact with the small surface of the brim of the hat to realize the positioning of the entire fastener. The lower limit plate cooperates with the upper limit plate to realize the limiting of the two ends of the fastening ring plate, so that they are connected to form a complete pressure ring. The pressure of each pressure point of the ring is the same, thereby greatly improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the sealing cap body structure of the present invention;

[0015] Figure 3 It is a schematic diagram of the fastener structure of the present invention. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and through specific embodiments. The following embodiments are only illustrative and not restrictive, and the protection scope of the present invention cannot be limited thereto.

[0017] A high-pressure flushing port sealing cap for a ship, comprising a sealing cap body 3 and a fastener 6 mounted on the body, the sealing cap body comprising a brim 5 and a cap body 7 made of polyurethane material, the bottom of the cap body being coaxially provided with a buffer groove protruding into the cap, the groove wall thickness of the buffer groove being the same as the thickness of the cap body, the bottom of the buffer groove being a disc 1, with the center of the disc as the midpoint, a joint seam 2 being formed on the disc at the bottom, the angle between the joint seams being 60°, when high-pressure flushing is started, the joint seam of the disc at the bottom of the buffer groove is flushed open by high-pressure water, causing water to flow out of the flushing The cap body is flushed out from the high-pressure flushing port. When the flushing stops, the joint seam of the disc is restored and spliced ​​into a sealed disc to prevent the impact of mud, sand and gravel; a ring groove 4 is formed on the inner wall of the cap body near the bottom position in the cap body, and a sealing ring is embedded in the ring groove. The sealing ring can be an O-ring; the brim is coaxially formed on the top of the cap body, and the brim protrudes from the cap body by 1-3 cm. In order to make the sealing cap better cover the high-pressure flushing port, a fastener is coaxially installed on the outer edge of the cap body near the brim. The fastening strength of the fastener can be adjusted to fix the sealing strength of the sealing cap;

[0018] The fastener is a fastening ring formed by a fastening ring piece and a bolt threaded connection. The two ends of the fastening ring piece are integrally bent outward and welded to form a fastening hole 8. A connecting column 10 is fixed in the fastening hole, and a threaded hole is formed in the middle of the connecting column. The bolt 9 is rotated through the two threaded holes to adjust the fastening strength of the outer sleeve on the outer edge of the cap body. In order to prevent the bolt from wearing the cap body during rotation, an arc-shaped stopper 11 is welded on the inner side wall of the fastening hole position of the fastening ring piece. The upper and lower ends of the arc-shaped stopper are symmetrically provided with an upper limit plate 12 and a lower limit plate 13, so that the arc-shaped stopper forms an arc-shaped limit groove. The other end of the fastening ring piece is first embedded in the arc-shaped limit groove, and then the tightness of the fastener in the limit ring groove is adjusted by the bolt. Further, the upper surface of the upper limit plate is tightened and is close to the small surface of the brim to realize the position positioning of the entire fastener. The lower limit plate cooperates with the upper limit plate to realize the limiting of the two ends of the fastening ring piece, so that they are connected to form an adjustable and complete fastening ring.

[0019] When in use, first install the fastener on the cap body, then put the sealing cap on the high-pressure flushing port, when the pipe mouth of the flushing port presses against the bottom of the cap, rotate the bolt to tighten the cap body on the high-pressure flushing port to achieve sealing.

[0020] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A high pressure flushing port sealing cap for a ship, characterized in that: The invention comprises a sealing cap body and a fastener installed on the body, wherein the sealing cap body comprises a brim and a cap body made of polyurethane material, the brim is coaxially formed on the top of the cap body, the brim protrudes from the cap body, a buffer groove protruding into the cap is coaxially formed on the bottom of the cap body, the bottom of the buffer groove is a round piece, a splicing seam is formed on the round piece, and a ring groove is formed on the inner side wall of the cap body near the bottom of the cap body; the fastener is a fastening ring formed by threading a fastening ring piece and a bolt; The two ends of the fastening ring are integrally bent outward and welded to form a fastening hole, in which a connecting column is fixed, and a threaded hole is formed in the middle of the connecting column, and a bolt threadably connects the two threaded holes to form a fastening ring; an arc-shaped stopper is welded to the inner wall of the fastening hole of the fastening ring, and an upper limit plate and a lower limit plate are symmetrically formed at the upper and lower ends of the arc-shaped stopper to form an arc-shaped limit groove; the angle between the splicing seams is 60°.

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