Drainage non-return mechanism for deck of ro-ro passenger ship

Abstract

The utility model relates to the technical field of drainage accessories of ro-ro passenger ships, in particular to a deck drainage non-return mechanism of a ro-ro passenger ship, which is provided with a water receiving part and a drainage non-return part, the water receiving part is connected with a deck, a drainage water inlet at the upper end of the drainage non-return part is connected with the water receiving part, and a drainage water outlet at the lower end of the drainage non-return part is connected with the drainage non-return part. The drainage non-return part comprises a first outer cylinder, a first inner cylinder and an annular non-return plate, the inner wall of the upper end of the first outer cylinder is fixedly connected with the annular non-return plate, the upper end of the first inner cylinder is fixedly connected with the middle of the plate face of the annular non-return plate, and the inner ring of the annular non-return plate extends to the first inner edge; a non-return water inlet is formed in the cylinder bottom of the lower end of the first inner cylinder, a drainage water outlet is formed in the side wall of the first inner cylinder, a floating body is arranged in the first inner cylinder and is in a plate shape, an annular non-return plate is blocked through the floating body, and the filter has the advantages of being simple in structure, good in non-return effect and filtering effect, convenient to clean and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of ro-ro passenger ship drainage accessories, in particular to a ro-ro passenger ship deck drainage non-return mechanism with simple structure, good non-return effect, good filtering effect and convenient cleaning. Background Art

[0002] As is known to all, a drainage system must be provided at the bottom of the bilge in the vehicle cabin of a ro-ro passenger ship, and a check valve must be installed between the deck and the ground at the bottom of the bilge to prevent water from flowing back to the vehicle cabin above when the cabin is damaged, causing the ship to lose buoyancy and tip over. When the height between the deck and the ground is greater than 200mm, the existing plate check valve can be used. However, when the height between the deck and the ground is less than 200mm, the plate check valve cannot be installed. The plate check valve can only be installed at a position where the height between the deck and the ground is greater than 200mm. Moreover, when the installation height of the plate check valve is not appropriate, the plate check valve is generally welded directly under the deck, which increases the difficulty of later maintenance of the plate check valve. Once blocked, it cannot be cleaned. Summary of the invention

[0003] The utility model aims to solve the above-mentioned deficiencies of the prior art and provide a ro-ro passenger ship deck drainage check mechanism which has a simple structure, good check effect, good filtering effect and is easy to clean.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A passenger and vehicle ferry deck drainage check mechanism comprises a water receiving part and a drainage check part, wherein the water receiving part is connected to the deck, and the upper drainage inlet of the drainage check part is connected to the water receiving part, and the drainage check part comprises a first outer cylinder, a first inner cylinder, and an annular check plate, the upper inner wall of the first outer cylinder is fixedly connected to the annular check plate, the upper end of the first inner cylinder is fixedly connected to the middle part of the plate surface of the annular check plate, the inner circle of the annular check plate extends to the first inner edge, the lower end bottom of the first inner cylinder is provided with a check inlet, the side wall of the first inner cylinder is provided with a drainage outlet, a float is provided inside the first inner cylinder, the float is in the shape of a plate, the thickness of the float is less than the distance from the drainage outlet to the bottom of the inner cylinder, the diameter of the float is greater than the inner diameter of the annular check plate, and the annular check plate is sealed by the float.

[0006] The water receiving part described in the utility model includes a filter cylinder, a second outer cylinder, a closing plate, an annular filter plate, and an annular flange plate. The second outer cylinder is sleeved on the outside of the filter cylinder, the diameter of the second outer cylinder is larger than the diameter of the first outer cylinder, the bottom of the second outer cylinder is fixedly connected to the upper end of the first outer cylinder via an annular connecting plate, the upper end of the filter cylinder is connected to the closing plate, the lower end of the filter cylinder is in contact with the annular connecting plate, an annular filter plate is provided between the outer side of the upper end of the filter cylinder and the upper end of the second outer cylinder, the outer end of the annular filter plate is fixedly connected to the second outer cylinder, the inner end of the annular filter plate is in contact with the outer wall of the upper end of the filter cylinder, the outer wall of the upper end of the second outer cylinder is connected to the annular flange plate, the drainage passes through the annular filter plate into the drainage gap between the second outer cylinder and the filter cylinder, and enters the drainage check portion for drainage after being filtered by the filter cylinder.

[0007] The upper end of the inner wall of the first outer cylinder described in the utility model is provided with an annular plate, a threaded hole is provided on the annular plate, and a through hole is provided on the annular check plate. The locking bolt passes through the through hole and is connected with the threaded hole on the annular plate, thereby realizing the detachable connection between the annular check plate, the first inner cylinder and the first outer cylinder, and then the float, the annular check plate and the first inner cylinder can be replaced.

[0008] The bottom of the lower end of the first outer cylinder of the utility model is provided with a drainage port, through which water is discharged.

[0009] The upper end of the closing plate described in the utility model is provided with a receiving groove, and a handle is provided in the receiving groove. The handle is hinged to the groove wall of the receiving groove, and the handle can be received in the receiving groove. The filter cartridge can be pulled out by the handle to inspect the drainage check part or clean the water connection part.

[0010] The utility model has the advantages of simple structure, good non-return effect, good filtering effect, convenient cleaning, etc. due to the adoption of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a structural schematic diagram of the drainage process of the utility model.

[0013] Figure 3 It is a structural schematic diagram of the non-return process of the utility model. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings:

[0015] As shown in the accompanying drawings, a deck drainage check mechanism for a passenger and vehicle ship is provided with a water receiving portion and a drainage check portion, wherein the water receiving portion is connected to the deck, and the upper drainage inlet of the drainage check portion is connected to the water receiving portion, and the drainage check portion comprises a first outer tube 1, a first inner tube 2, and an annular check plate 3, wherein the upper inner wall of the first outer tube 1 is fixedly connected to the annular check plate 3, the upper end of the first inner tube 2 is fixedly connected to the middle of the plate surface of the annular check plate 3, the inner circle of the annular check plate 3 extends to the first inner edge, a check inlet 4 is provided on the lower end bottom of the first inner tube 2, a drainage outlet 5 is provided on the side wall of the first inner tube 2, a float 6 is provided inside the first inner tube 2, the float 6 is set in a plate shape, the thickness of the float 6 is less than the distance from the drainage outlet 5 to the bottom of the inner tube, the diameter of the float 6 is greater than the inner diameter of the annular check plate 3, and the annular check plate 3 is blocked by the float 6.

[0016] Furthermore, the water receiving part includes a filter cylinder 7, a second outer cylinder 8, a closing plate 9, an annular filter plate 10, and an annular flange plate 11. The second outer cylinder 8 is sleeved on the outside of the filter cylinder 7. The diameter of the second outer cylinder 8 is larger than the diameter of the first outer cylinder 1. The bottom of the second outer cylinder 8 is fixedly connected to the upper end of the first outer cylinder 1 via an annular connecting plate 12. The upper end of the filter cylinder 7 is connected to the closing plate 9. The lower end of the filter cylinder 7 contacts the annular connecting plate 12. An annular filter plate 10 is provided between the outer side of the upper end of the filter cylinder 7 and the upper end of the second outer cylinder 8. The outer end of the annular filter plate 10 is fixedly connected to the second outer cylinder 8. The inner end of the annular filter plate 10 contacts the outer wall of the upper end of the filter cylinder 7. The outer wall of the upper end of the second outer cylinder 8 is connected to the annular flange plate 11. The drainage enters the drainage gap between the second outer cylinder 8 and the filter cylinder 7 through the annular filter plate 10, and enters the drainage check portion for drainage after being filtered by the filter cylinder 7.

[0017] Furthermore, an annular plate 13 is provided at the upper end of the inner wall of the first outer cylinder 1, and a threaded hole is provided on the annular plate 13. A through hole is provided on the annular check plate 3, and a locking bolt 14 passes through the through hole and is connected to the threaded hole on the annular plate 13, thereby realizing a detachable connection between the annular check plate 3, the first inner cylinder 2 and the first outer cylinder 1, and then the float 6, the annular check plate 3 and the first inner cylinder 2 can be replaced.

[0018] Furthermore, a drain port is provided at the bottom of the lower end of the first outer tube 1, through which water is discharged.

[0019] Furthermore, a receiving groove 15 is provided at the upper end of the closing plate 9, and a handle 16 is provided in the receiving groove 15. The handle 16 is hinged to the groove wall of the receiving groove 15, and the handle 16 can be received in the receiving groove 15. The filter cartridge 7 can be pulled out by the handle 16 to inspect the drainage check part or clean the water connection part.

[0020] When the utility model is used, the annular flange plate 11 connected to the second outer cylinder 8 is directly welded to the through hole opened on the deck, and the drainage port at the bottom of the lower end of the first outer cylinder 1 is connected to the external pipeline through a drainage pipe. Since the filter cylinder 7 is provided, the area of ​​​​filtered water can be increased, and secondary filtration can also be performed to increase the drainage volume. The drainage process is: the drainage enters the second outer cylinder 8 through the annular filter plate 10, and then enters the first inner cylinder 2 through the filter cylinder 7. The drainage outlet 5 of the first inner cylinder 2 discharges the water into the first outer cylinder 1, and then finally discharged through the drainage port. The non-return process is that after the water enters the first outer cylinder 1 through the drainage port, the water enters the first inner cylinder 2 through the non-return water inlet 4 at the bottom of the first inner cylinder 2. An inner tube 2, the buoyancy of water moves the float 6 of the first inner tube 2 upward, and the float 6 blocks the annular check plate 3, finally achieving a check effect. At the same time, when the drainage check mechanism is inspected and repaired, the filter cartridge 7 can be directly lifted out through the handle on the closing plate 9. After being lifted out, the annular check plate 3 can be disassembled, and then the first inner tube 2 and the float 6 can be replaced. At the same time, after taking out the filter cartridge 7, the impurities filtered between the filter cartridge 7 and the second outer tube 8 can be cleaned. The design of this structure ensures the check effect while facilitating maintenance without damaging the deck. Due to the adoption of the above-mentioned structure, the utility model has the advantages of simple structure, good check effect, good filtering effect, and convenient cleaning.

Claims

1. A non-return mechanism for drainage on a ro-ro passenger ship deck, comprising a water receiving portion and a non-return mechanism for drainage, characterized in that The water receiving part is connected to the deck, and the upper drainage inlet of the drainage check part is connected to the water receiving part. The drainage check part includes a first outer cylinder, a first inner cylinder, and an annular check plate. The upper inner wall of the first outer cylinder is fixedly connected to the annular check plate, and the upper end of the first inner cylinder is fixedly connected to the middle of the plate surface of the annular check plate. The inner circle of the annular check plate extends to the first inner edge. A check inlet is provided on the bottom of the lower end of the first inner cylinder, and a drainage outlet is provided on the side wall of the first inner cylinder. A float is provided inside the first inner cylinder. The float is in the shape of a plate, and the thickness of the float is smaller than the distance from the drainage outlet to the bottom of the inner cylinder. The diameter of the float is larger than the inner diameter of the annular check plate, and the annular check plate is sealed by the float.

2. The ro-ro passenger ship deck drainage check mechanism according to claim 1, characterized in that The water receiving part includes a filter cylinder, a second outer cylinder, a closing plate, an annular filter plate, and an annular flange plate. The second outer cylinder is sleeved on the outside of the filter cylinder. The diameter of the second outer cylinder is larger than the diameter of the first outer cylinder. The bottom of the second outer cylinder is fixedly connected to the upper end of the first outer cylinder via an annular connecting plate. The upper end of the filter cylinder is connected to the closing plate. The lower end of the filter cylinder contacts the annular connecting plate. An annular filter plate is provided between the outer side of the upper end of the filter cylinder and the upper end of the second outer cylinder. The outer end of the annular filter plate is fixedly connected to the second outer cylinder. The inner end of the annular filter plate contacts the outer wall of the upper end of the filter cylinder. The outer wall of the upper end of the second outer cylinder is connected to the annular flange plate. The drainage passes through the annular filter plate into the drainage gap between the second outer cylinder and the filter cylinder, and enters the drainage check part for drainage after being filtered by the filter cylinder.

3. The non-return mechanism for the deck drainage of a ro-ro passenger ship according to claim 1, characterized in that An annular plate is provided at the upper end of the inner wall of the first outer cylinder, and a threaded hole is provided on the annular plate. A through hole is provided on the annular check plate, and a locking bolt passes through the through hole and is connected to the threaded hole on the annular plate, thereby realizing a detachable connection between the annular check plate, the first inner cylinder and the first outer cylinder, and then the float, the annular check plate and the first inner cylinder can be replaced.

4. The ro-ro passenger ship deck drainage check mechanism according to claim 1, characterized in that The bottom of the lower end of the first outer cylinder is provided with a drain port, through which water is discharged.

5. The non-return mechanism for the deck drainage of a ro-ro passenger ship according to claim 2, characterized in that The upper end of the closing plate is provided with a receiving groove, and a handle is provided in the receiving groove. The handle is hinged to the groove wall of the receiving groove, and the handle can be received in the receiving groove. The filter cartridge can be pulled out by the handle to inspect the drainage check part or clean the water connection part.

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