Temporary protection device for sewage well hole of cargo hold

By combining the design of the cover plate and the suction port device, the problem of incomplete water suction from the sludge well holes in the cargo hold was solved, achieving efficient and safe sludge well cleaning, improving work efficiency and reducing safety risks.

CN223982653UActive Publication Date: 2026-03-10YANGZHOU DAYANG SHIPBUILDING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In the existing technology, the temporary protective measures for the sewage well holes in the cargo hold have problems such as water accumulation and leakage and incomplete pumping, resulting in high workload, low efficiency and safety hazards.

Method used

A protective device including a cover plate and a suction port was designed. The cover plate has a through hole in the center and a float plate and a connector below it. The float plate has a suction port, which is connected to the water pumping pipe through the connector. The design of the float plate and the pressure ring makes the suction port close to the bottom of the tank, so as to achieve efficient pumping of accumulated water.

Benefits of technology

It effectively intercepts most of the garbage, ensures that the pumping pipe can be close to the bottom of the tank, improves the discharge efficiency of water accumulated in the sewage well, reduces the need for manual cleaning, and reduces safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cargo hold sewage well hole temporary protection device which comprises a cover plate, a circle of bolt holes are evenly distributed along the edge of the cover plate, a through hole is formed in the center of the cover plate, a suction port device is arranged below the cover plate and comprises a floating plate matched with the section of a sewage well, and a suction port is formed in the center of the floating plate. The upper surface of the floating plate is fixedly connected with an annular-table-shaped connector along the outer edge of the suction port, two protruding blocks are symmetrically arranged on the periphery of the connector, gaps are reserved between the bottom faces of the protruding blocks and the top face of the floating plate, the width of the gaps is larger than the thickness of the cover plate, a through hole in the center of the cover plate is provided with two grooves allowing the protruding blocks to penetrate through, and the inner wall of the connector is provided with internal threads used for being in butt joint with a water pumping pipe. A pressing ring concentric with the suction opening is arranged on the upper surface of the floating plate. By using the device, accumulated water in the sewage well can be conveniently and efficiently sucked, and the purpose of draining sewage can be achieved.
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Description

Technical Field

[0001] This utility model relates to the field of ship auxiliary construction technology, specifically to a temporary protective device for sewage well holes in cargo holds. Background Technology

[0002] During ship construction, the openings in the cargo hold septic tanks pose a safety hazard, as construction workers are at risk of falling. Therefore, temporary safety protection measures are needed for the openings in the cargo hold septic tanks.

[0003] Currently, the temporary protective measures for cargo hold septic tank openings typically involve installing temporary covers. However, even with these covers, water from the cargo hold or rainwater can still seep into the septic tanks, forming stagnant water. During ship completion and acceptance, the septic tanks must be clean and dry, necessitating periodic pumping out the water. To facilitate pumping, through holes are made in the temporary covers to allow suction pipes to be inserted. However, when using suction pipes, a gap of at least 4-8 cm must be maintained between the suction inlet and the bottom of the septic tank, making it difficult to completely remove the water from the bottom. To ensure the septic tanks meet acceptance standards, manual scooping is the only option to drain the water from the bottom, resulting in high workload, low efficiency, and safety hazards.

[0004] Therefore, it is necessary to provide a temporary protective device for the sewage well hole in the cargo hold to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a temporary protective device for cargo hold sewage well holes, which can conveniently and efficiently pump out the accumulated water in the sewage well.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A temporary protective device for a sewage well hole in a cargo hold includes a cover plate with a ring of bolt holes evenly distributed along its edge. A through hole is located in the center of the cover plate. A suction device is located below the cover plate. The suction device includes a float plate adapted to the cross-section of the sewage well. A suction port is located in the center of the float plate. A truncated ring-shaped connector is fixed to the upper surface of the float plate along the outer edge of the suction port. Two protrusions are symmetrically arranged on the outer periphery of the connector. A gap is left between the bottom surface of the protrusions and the top surface of the float plate, the gap being wider than the thickness of the cover plate. The through hole in the center of the cover plate has two grooves for the protrusions to pass through. The inner wall of the connector has internal threads for connecting a pumping pipe. A pressure ring concentric with the suction port is located on the upper surface of the float plate.

[0008] Preferably, the top surface of the cover plate is provided with a pair of handles.

[0009] Preferably, the float is a circular float, and the pressure ring is a ring with buoyancy.

[0010] Preferably, the outer diameter of the connector is smaller than the inner diameter of the through hole.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] 1. It can intercept most garbage, except for sewage, outside the sewage well, and prevent domestic waste from clogging the sewage well and sewage pipe.

[0013] 2. When it is necessary to pump out the water in the sewage well, connect the pipe head of the pumping pipe to the connector of the suction device. With the help of the float plate, the suction port is brought as close as possible to the bottom of the sewage well to achieve the purpose of cleaning out the sewage. No manual cleaning is required afterward, which greatly improves the efficiency of operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the water absorption device;

[0015] Figure 2 This is a cross-sectional view of the water absorption device;

[0016] Figure 3 This is a top view of the cover plate;

[0017] Among them, 1-cover plate, 2-bolt hole, 3-through hole, 301-groove, 4-float plate, 5-joint, 6-protrusion, 7-pressure ring, 8-handle Detailed Implementation

[0018] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixed connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this utility model, terms such as "upper", "lower", "bottom", and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0021] like Figures 1 to 3 As shown, a temporary protective device for a sewage well hole in a cargo hold includes a cover plate 1, with a ring of bolt holes 2 evenly distributed along the edge of the cover plate, a through hole 3 in the center of the cover plate, and a suction device below the cover plate. The suction device includes a circular float plate 4 adapted to the cross-section of the sewage well, with a suction port in the center of the float plate. A truncated ring-shaped connector 5 is fixedly connected to the upper surface of the float plate along the outer edge of the suction port. Two protrusions 6 are symmetrically arranged on the outer periphery of the connector. A gap is left between the bottom surface of the protrusions and the top surface of the float plate, and the gap width is greater than the thickness of the cover plate. The through hole in the center of the cover plate has two grooves 301 for the protrusions to pass through. The outer diameter of the connector is smaller than the inner diameter of the through hole to facilitate smoother passage of the connector through the through hole. The inner wall of the connector has an internal thread for connecting a pumping pipe. A pressure ring 7 concentric with the suction port is installed on the upper surface of the float plate. The pressure ring is a ring with buoyancy. A pair of handles 8 are installed on the top surface of the cover plate.

[0022] The principle and usage of a temporary protective device for a sewage well hole in a cargo hold: First, pass the connector of the suction device through the through hole of the cover plate. When passing through, the protrusion on the outer periphery of the connector needs to be aligned with the groove of the through hole. After the connector has completely passed through the through hole, rotate the cover plate so that the groove of the through hole and the protrusion are misaligned and the bottom surface of the protrusion abuts against the top surface of the cover plate, so that the suction device is fixed and locked in place and will not fall into the sewage well. Use countersunk bolts to lock and fix the cover plate to the edge of the sewage well.

[0023] When it is necessary to pump out the water in the sewage well, screw the end of the pumping pipe into the internal thread of the connector, rotate the pumping pipe and the connector until the protrusion on the outer circumference of the connector is aligned with the groove of the through hole, so that the pumping pipe and the suction device fall into the sewage well together. The float plate is attached to the sewage surface of the sewage well. Under the action of the pressure ring, the float plate will not shake much. Under the suction of the sewage pump, the sewage is discharged outward from the suction port of the float plate through the pumping pipe. Under the gravity of the float plate and the pressure ring, even if the sewage surface is close to the bottom of the sewage well, the sewage can still be sucked out, thereby achieving the purpose of draining the sewage.

[0024] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A temporary protection device for a cargo hold bilge hole, characterized in that: The utility model relates to a sewage well cover, comprising a cover plate (1), a circle of bolt holes (2) is uniformly distributed along the cover plate edge, a through hole (3) is set up in the center of the cover plate, a suction device is arranged below the cover plate, the suction device comprises a floating plate (4) matched with the section of the sewage well, a suction port is set up in the center of the floating plate, a ring table type joint (5) is fixedly connected along the outer edge of the suction port on the upper surface of the floating plate, two protrusions (6) are symmetrically arranged on the outer periphery of the joint, a gap is left between the bottom surface of the protrusion and the top surface of the floating plate, the gap width is greater than the thickness of the cover plate, two grooves (301) for the protrusion to pass through are set up in the through hole in the center of the cover plate, internal threads for butt jointing a water suction pipe are set up on the inner wall of the joint, and a compression ring (7) concentric with the suction port is arranged on the upper surface of the floating plate.

2. A temporary cargo hold bilge hole protection device according to claim 1, characterized in that: A pair of handles (8) are arranged on the top surface of the cover plate.

3. A temporary cargo hold sump hole protection device according to claim 1, characterized in that: The floating plate is a circular floating plate, and the compression ring is a ring body with buoyancy.

4. A temporary cargo hold sump hole protection device according to claim 1, characterized in that: The outer diameter of the joint is smaller than the inner diameter of the through hole.