Splash-proof cover plate of drain pipe for ship

By designing splash guards that can be adapted to different diameter discharge pipes, and combining bolt and clamp connections with ventilated semi-circular holes, the limitations of single-specification covers in existing technologies have been overcome. This has enabled multi-specification applicability and efficient flow discharge, reducing cleaning workload and spare parts costs.

CN120926337APending Publication Date: 2025-11-11DALIAN COSCO KHI SHIP ENG
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Patent Information

Application Number
CN202511411519.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2025-11-11

AI Technical Summary

Technical Problem

Existing splash guards for drain pipes are only suitable for drain pipes of a single diameter. When the flow rate is high, they can easily cause liquid splashing and make cleaning difficult. Furthermore, they cannot meet the installation requirements of narrow spaces on ships.

Method used

A multifunctional splash guard was designed, comprising a first cover plate structure, a second cover plate structure, a bolt structure, a liner structure, and a clip structure. It is connected by a combination of bolts and clips to accommodate drain pipes of different diameters, and a ventilated semi-circular hole is provided in the cover plate structure to prevent liquid splashing and overflow.

Benefits of technology

It achieves applicability to various pipe specifications, reduces spare parts costs, facilitates installation and disassembly, avoids liquid splashing and overflow, improves flow discharge efficiency, and reduces cleaning workload.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a splash-proof cover plate of a discharge pipe for a ship, and belongs to the technical field of ship engineering. The cover plate comprises a first cover plate structure, a second cover plate structure, a bolt structure, a lining plate structure and a clamping piece structure, the bolt structure and the lining plate structure are arranged on the first cover plate structure, and the clamping piece structure is arranged on the second cover plate structure; the bolt structure and the clamping piece structure are matched to connect the first cover plate structure and the second cover plate structure. During installation, the lining plate structure of the first cover plate structure is inserted into the cavity of the second cover plate structure, the stud penetrates into the open long-strip groove and locks the nut, and the diameter of the preformed hole can be adjusted through different cooperation of the stud and the open long-strip groove. The device not only can adapt to discharge pipes with different diameters through split type insertion and bolt locking design, reduces the cost of spare parts, is convenient to mount and dismount in a narrow space of a ship, but also can realize splash-proof protection and avoid potential safety hazards and structural damage caused by liquid splashing by virtue of a double-fit sealing structure and a ventilation semicircular hole.
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Description

Technical Field

[0001] This invention relates to a splash guard for a ship's vent pipe, which belongs to the technical field of marine engineering. Background Technology

[0002] Ship vent pipes are functional pipelines in a ship's piping system specifically designed for discharging fluids, removing impurities, balancing pressure, or monitoring the state of the medium. They are widely distributed in core areas of a ship's power, fuel, lubricating oil, water, and ballast systems, and are crucial auxiliary components ensuring the normal operation of ship equipment and navigational safety. Splash guards are generally installed above the vent pipe opening. In some areas such as engine rooms and pump rooms, where vent pipes are primarily used to discharge liquids such as lubricating oil and cooling water, splash guards are installed horizontally at a short distance above the vent pipe opening. This way, when liquid is discharged from the vent pipe, the splash guard directly prevents the liquid from splashing upwards, guiding it to disperse in all directions and preventing it from splashing onto surrounding equipment or personnel.

[0003] On ships, some vent pipes experience large liquid flows during discharge, which can easily cause liquid splashing. Shipboard vent pipes come in various specifications with significant differences (generally, engine room vent pipes are below 100A). Existing splash guards for vent pipes are all specialized covers, requiring only one cover per pipe. Furthermore, at high flow rates, liquid may overflow from above the splash guard, resulting in a significant amount of cleaning work. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a splash guard for ship vent pipes, which can be used for vent pipes of different diameters, and is equipped with a ventilated semi-circular hole to prevent the vented fluid from overflowing.

[0005] The technical solution adopted in this invention is as follows: a splash guard for a ship's discharge pipe, comprising a first cover structure, a second cover structure, a bolt structure, a liner structure, and a clamping structure. The bolt structure and the liner structure are disposed on the first cover structure, and the clamping structure is disposed on the second cover structure. The bolt structure and the clamping structure cooperate to connect the first cover structure and the second cover structure. The first cover plate structure uses a first annular cover plate connected to a first arc-shaped vertical plate to form a cavity structure; the bolt structure includes studs and nuts, with the studs located on the upper surfaces at both ends of the first annular cover plate; the liner plate structure uses a liner plate top plate and a liner plate arc plate connected together, with the liner plate top plate fixedly connected to the lower surface of the first annular cover plate and the liner plate arc plate fixedly connected to the inner surface of the first arc-shaped vertical plate. The second cover plate structure uses a second annular cover plate connected to a second arc-shaped vertical plate to form a cavity structure; the clamping plate structure includes a clamping plate fixing plate and an open elongated groove, and the clamping plate fixing plate is fixed to the upper surface of the second annular cover plate; The liner structure in the first cover plate structure is inserted into the cavity structure of the second cover plate structure, the stud is inserted into the open long groove of the liner structure and locked with a nut, thereby connecting the first cover plate structure and the second cover plate structure into one piece, forming a reserved hole for placing the drain pipe in the middle.

[0006] Furthermore, a first fixing eye plate is provided on the first arc-shaped upright plate, and a second fixing eye plate is provided on the second arc-shaped upright plate.

[0007] Furthermore, the first and second fixing eye plates are connected to the fixing flat steel eye plate of the fixing flat steel to fix the splash guard.

[0008] Furthermore, the bottom ends of the first and second arc-shaped vertical plates are provided with ventilation semi-circular holes.

[0009] Furthermore, the stud and the open elongated groove are fitted at different positions to form a reserved hole that can accommodate drain pipes of different diameters.

[0010] A method for using a splash guard on a ship's vent pipe includes the following steps: a. Apply the first cover plate structure to the discharge pipe, then insert the second cover plate structure into the first cover plate structure, insert the liner structure into the cavity structure of the second cover plate structure, insert the entire top plate of the liner into the bottom of the second annular cover plate, and insert the entire arc plate of the liner into the interior of the second arc-shaped vertical plate. b. Insert the studs at both ends of the first annular cover plate into the root of the open long slot at both ends of the second annular cover plate, and use nuts to tighten them onto the studs. c. Then connect the first and second fixed eye plates to the fixed flat steel eye plate, and weld the non-perforated end of the fixed flat steel to the surrounding components. d. When the drain pipe is draining, the first cover plate structure and the second cover plate structure prevent the drained fluid from splashing. The vent semi-circular hole at the bottom is used for outflow of the drained fluid to prevent the drained fluid from overflowing from above the splash guard.

[0011] A method for using a splash guard on a ship's vent pipe includes the following steps: a. Apply the first cover plate structure to the discharge pipe, then insert the second cover plate structure into the first cover plate structure, insert the liner structure into the cavity structure of the second cover plate structure, insert the top plate of the liner into the bottom of the second annular cover plate, and insert the arc plate of the liner into the interior of the second arc-shaped vertical plate. b. Insert the studs at both ends of the first annular cover plate into the open long slots at both ends of the second annular cover plate, and use nuts to tighten them onto the studs. c. Then connect the first and second fixed eye plates to the fixed flat steel eye plate, and weld the non-perforated end of the fixed flat steel to the surrounding components. d. When the drain pipe is draining, the first cover plate structure and the second cover plate structure prevent the drained fluid from splashing. The vent semi-circular hole at the bottom is used for outflow of the drained fluid to prevent the drained fluid from overflowing from above the splash guard.

[0012] Compared with existing technologies, the present invention has the following advantages: The splash guard includes a first cover plate structure connected to a first arc-shaped vertical plate to form a cavity, and a second cover plate structure connected to a second arc-shaped vertical plate to form a cavity. During installation, the liner structure of the first cover plate structure is inserted into the cavity of the second cover plate structure, the stud is inserted into the open elongated slot and the nut is tightened, and the diameter of the reserved hole can be adjusted by different fits between the stud and the open elongated slot. This device can not only adapt to different diameter discharge pipes through the split plug-in and bolt locking design, reducing spare parts costs and facilitating installation and disassembly in the narrow space of a ship, but also achieve splash protection through the double-fit sealing structure and the ventilated semi-circular hole, avoiding safety hazards and structural damage caused by liquid splashing.

[0013] This device can be used as a splash guard for venting pipes up to 100A, accommodating various pipe specifications. Furthermore, a single splash guard can be used in multiple locations within the engine room (as multiple venting pipes in the engine room typically do not vent simultaneously), significantly reducing cover procurement costs. Simultaneously, the bottom of the first and second arc-shaped vertical plates features venting semi-circular holes (i.e., square-toothed designs) to increase the flow rate of the venting pipes, while preventing liquid from overflowing from above the splash guard (ship venting pipe openings are generally located in the low corners of the cofferdam, above floor drains; liquid overflowing from below the splash guard will flow into the floor drain, minimizing its impact on the cleanliness around the splash guard). This single cover can be used in different locations on the ship, significantly reducing cover procurement costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view of the split structure of a splash guard for a ship's vent pipe.

[0016] Figure 2 This is a side view of a split structure of a splash guard for a ship's vent pipe.

[0017] Figure 3 This is a front view of a splash guard for a ship's vent pipe.

[0018] Figure 4 This is a schematic diagram of the fit between the clip structure and the bolt structure.

[0019] Figure 5 This is a side view of a splash guard for a ship's vent pipe.

[0020] Figure 6 This is a structural diagram of the fixed flat steel.

[0021] Figure 7 This is a working diagram showing the adjustment position of a splash guard cover for a ship's vent pipe.

[0022] In the figure: 1. First annular cover plate, 2. First arc-shaped vertical plate, 3. Stud, 4. Liner top plate, 5. Liner arc plate, 6. First fixing eye plate, 7. Second annular cover plate, 8. Second arc-shaped vertical plate, 9. Second fixing eye plate, 10. Clip fixing plate, 11. Opening long slot, 12. Nut, 13. Reserved hole, 14. Vent semi-circular hole, 15. Drain pipe, 16. Fixing flat steel, 17. Fixing flat steel hole. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0027] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0028] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0029] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0030] Figures 1 to 7A splash guard for a ship's vent pipe is shown, comprising a first cover structure, a second cover structure, a bolt structure, a liner structure, and a clamping structure. The bolt structure and the liner structure are disposed on the first cover structure, and the clamping structure is disposed on the second cover structure. The bolt structure and the clamping structure cooperate to connect the first cover structure and the second cover structure. The first cover plate structure uses a first annular cover plate 1 connected to a first arc-shaped vertical plate 2 to form a cavity structure; the bolt structure includes studs 3 and nuts 12, with studs 3 set on the upper surfaces of both ends of the first annular cover plate 1; the liner structure uses a liner top plate 4 and a liner arc plate 5 connected, with the liner top plate 4 fixedly connected to the lower surface of the first annular cover plate 1, and the liner arc plate 5 fixedly connected to the inner surface of the first arc-shaped vertical plate 2.

[0031] The second cover plate structure uses a second annular cover plate 7 connected to a second arc-shaped vertical plate 8 to form a cavity structure; the clamping plate structure includes a clamping plate fixing plate 10 and an open elongated groove 11, with the clamping plate fixing plate 10 fixed to the upper surface of the second annular cover plate 7.

[0032] A first fixing eye plate 6 is provided on the first arc-shaped upright plate 2, and a second fixing eye plate 9 is provided on the second arc-shaped upright plate 8. The first fixing eye plate 6 and the second fixing eye plate 9 are connected to the fixing flat steel eye plate 17 of the fixing flat steel 16 to fix the splash cover. A ventilated semi-circular hole 14 is provided at the bottom end of the first arc-shaped upright plate 2 and the second arc-shaped upright plate 8.

[0033] The liner structure in the first cover plate structure is inserted into the cavity structure of the second cover plate structure, the stud 3 is inserted into the open long groove 11 of the liner structure and locked with the nut 12, thereby connecting the first cover plate structure and the second cover plate structure into one piece, forming a reserved hole 13 for placing the drain pipe in the middle.

[0034] The stud 3 and the open elongated groove 11 are matched at different positions to form a reserved hole 13 that can be adapted to discharge pipes of different diameters.

[0035] In use, place the end of the drain pipe between the left and right parts. Secure the right half of the clamp to the left half of the stud with bolts. Weld the end of the fixing flat steel (without holes) to the surrounding components, and connect the perforated end to the splash guard fixing eye plate with bolts and nuts. If the drain pipe is larger than the pre-drilled hole in the center of the splash guard, the position of the clamp and stud can be adjusted within a certain range to achieve the splash guard function.

[0036] Figure 3 This is a schematic diagram showing the liner structure fully inserted. When using this method, the following steps are included: a. Apply the first cover plate structure to the discharge pipe, then insert the second cover plate structure into the first cover plate structure, insert the liner structure into the cavity structure of the second cover plate structure, insert the entire liner top plate 4 into the bottom of the second annular cover plate 7, and insert the entire liner arc plate 5 into the interior of the second arc-shaped vertical plate 8. b. The studs 3 above both ends of the first annular cover plate 1 are inserted into the root of the open long groove 11 above both ends of the second annular cover plate 7, and the nuts 12 are applied to the studs 3 and locked. c. Then connect the first fixing eye plate 6 and the second fixing eye plate 9 to the fixing flat steel eye plate 17, and weld the holeless end of the fixing flat steel 16 to the surrounding components. d. When the drain pipe 15 is draining, the first cover plate structure and the second cover plate structure prevent the drained fluid from splashing. The vent semi-circular hole 14 at the bottom is used for outflow of the drained fluid to prevent the drained fluid from overflowing from above the splash guard.

[0037] Figure 7 This is a schematic diagram showing the insertion of the liner structure. When using this method, the following steps are included: a. Apply the first cover plate structure to the discharge pipe, then insert the second cover plate structure into the first cover plate structure, insert the liner structure into the cavity structure of the second cover plate structure, insert part of the top plate 4 of the liner into the bottom of the second annular cover plate 7, and insert part of the arc plate 5 of the liner into the interior of the second arc-shaped vertical plate 8. b. The studs 3 above both ends of the first annular cover plate 1 are inserted into the open long slots 11 above both ends of the second annular cover plate 7, and the nuts 12 are applied to the studs 3 and locked. c. Then connect the first fixing eye plate 6 and the second fixing eye plate 9 to the fixing flat steel eye plate 17, and weld the holeless end of the fixing flat steel 16 to the surrounding components. d. When the drain pipe 15 is draining, the first cover plate structure and the second cover plate structure prevent the drained fluid from splashing. The vent semi-circular hole 14 at the bottom is used for outflow of the drained fluid to prevent the drained fluid from overflowing from above the splash guard.

[0038] The device features evenly distributed semi-circular perforations at its bottom, creating a concave-convex flow-guiding structure that increases the flow area between the drain pipe and the outside environment. Compared to traditional, relatively regular pipe openings with smaller flow areas, the increased number of semi-circular perforations allows for faster liquid discharge through more channels, thereby increasing the flow rate of the drain pipe and enabling more efficient liquid discharge from the pipe.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A splash guard for a ship's vent pipe, characterized in that, It includes a first cover plate structure, a second cover plate structure, a bolt structure, a liner structure, and a clamping structure. The bolt structure and the liner structure are installed on the first cover plate structure, and the clamping structure is installed on the second cover plate structure. The bolt structure and the clamping structure work together to connect the first cover plate structure and the second cover plate structure. The first cover plate structure uses a first annular cover plate (1) to connect a first arc-shaped vertical plate (2) to form a cavity structure; the bolt structure includes studs (3) and nuts (12), with studs (3) set on the upper surfaces of both ends of the first annular cover plate (1); the liner structure uses a liner top plate (4) and a liner arc plate (5) to connect, with the liner top plate (4) fixedly connected to the lower surface of the first annular cover plate (1), and the liner arc plate (5) fixedly connected to the inner surface of the first arc-shaped vertical plate (2); The second cover plate structure uses a second annular cover plate (7) to connect a second arc-shaped vertical plate (8) to form a cavity structure; the clamping plate structure includes a clamping plate fixing plate (10) and an open elongated groove (11), and the clamping plate fixing plate (10) is fixed to the upper surface of the second annular cover plate (7); Insert the liner structure in the first cover plate structure into the cavity structure of the second cover plate structure, insert the stud (3) into the open long slot (11) of the liner structure, and lock it with a nut (12), thereby connecting the first cover plate structure and the second cover plate structure into one piece, forming a reserved hole (13) for placing the drain pipe in the middle.

2. A splash guard for a ship's vent pipe according to claim 1, characterized in that, The first arc-shaped vertical plate (2) is provided with a first fixed eye plate (6), and the second arc-shaped vertical plate (8) is provided with a second fixed eye plate (9).

3. A splash guard for a ship's vent pipe according to claim 2, characterized in that, The first fixing eye plate (6) and the second fixing eye plate (9) are connected to the fixing flat steel eye plate (17) of the fixing flat steel (16) to fix the splash cover.

4. A splash guard for a ship's vent pipe according to claim 3, characterized in that, The bottom ends of the first arc-shaped vertical plate (2) and the second arc-shaped vertical plate (8) are provided with ventilation semi-circular holes (14).

5. A splash guard for a ship's vent pipe according to claim 4, characterized in that, The stud (3) and the open elongated groove (11) are matched at different positions to form a reserved hole (13) that can be adapted to drain pipes of different diameters.

6. The working method of a splash guard for a ship's vent pipe according to claim 5, characterized in that, Includes the following steps: a. Apply the first cover plate structure to the discharge pipe, then insert the second cover plate structure into the first cover plate structure, insert the liner structure into the cavity structure of the second cover plate structure, insert the entire top plate (4) of the liner into the bottom of the second annular cover plate (7), and insert the entire arc plate (5) of the liner into the interior of the second arc-shaped vertical plate (8). b. The studs (3) above both ends of the first annular cover plate (1) are inserted into the root of the open long slot (11) above both ends of the second annular cover plate (7), and the nuts (12) are applied to the studs (3) and locked. c. Then connect the first fixed eye plate (6) and the second fixed eye plate (9) to the fixed flat steel eye plate (17), and weld the holeless end of the fixed flat steel (16) to the surrounding components. d. When the drain pipe (15) is draining, the first cover plate structure and the second cover plate structure prevent the drained fluid from splashing. The ventilated semi-circular hole (14) at the bottom is used for draining outflow to prevent the drained fluid from overflowing from above the splash guard.

7. The working method of a splash guard for a ship's vent pipe according to claim 5, characterized in that, Includes the following steps: a. Apply the first cover plate structure to the discharge pipe, then insert the second cover plate structure into the first cover plate structure, insert the liner structure into the cavity structure of the second cover plate structure, insert part of the liner top plate (4) into the bottom of the second annular cover plate (7), and insert part of the liner arc plate (5) into the interior of the second arc-shaped vertical plate (8). b. The studs (3) above both ends of the first annular cover plate (1) are inserted into the open long slots (11) above both ends of the second annular cover plate (7), and nuts (12) are applied to the studs (3) and locked in place. c. Then connect the first fixed eye plate (6) and the second fixed eye plate (9) to the fixed flat steel eye plate (17), and weld the holeless end of the fixed flat steel (16) to the surrounding components. d. When the drain pipe (15) is draining, the first cover plate structure and the second cover plate structure prevent the drained fluid from splashing. The ventilated semi-circular hole (14) at the bottom is used for draining outflow to prevent the drained fluid from overflowing from above the splash guard.