An overflow port filtering device for the ship's outer plate

Abstract

The present invention relates to the technical field of marine gratings, and discloses a filtering device for an overflow port of an outer shipboard plate, comprising: a grating assembly and a filter screen; the grating assembly includes an overflow grating which is installed at the inner end of the overflow port, the filter screen is installed at the outer end of the overflow port, and the overflow grating has a plurality of flow channels with gradually decreasing diameters from inside to outside. The present invention provides a filtering device for an overflow port of an outer shipboard plate, which can realize the preliminary cleaning of the filter screen and has a simple structure.

Description

Technical Field

[0001] The present invention relates to the technical field of marine gratings, and particularly to a filtering device for an overflow port on the outer plate of a ship's hull. Background Art

[0002] Generally, an overflow tank is arranged on the side of a breeding ship. The height of the overflow tank is close to the sea level. After the outer plate of the side of the overflow tank is opened, a grating is installed to facilitate seawater exchange.

[0003] CN216935017U discloses a multifunctional marine grating. A filter screen assembly is arranged on the outer side of the grating main body to filter the seawater poured into the tank, preventing suspended substances from adhering to the tank wall and the grating. However, since the filter screen is arranged at the outer plate of the ship's hull for a long time, the suspended substances in the seawater are easily attached to the filter screen and form stubborn dirt. When the filter screen is removed for cleaning, it takes a lot of time to clean the filter screen thoroughly, consuming a lot of manpower. Summary of the Invention

[0004] The purpose of the present invention is to provide a filtering device for an overflow port on the outer plate of a ship's hull, which can achieve preliminary cleaning of the filter screen and has a simple structure.

[0005] To achieve the above purpose, the present invention provides a filtering device for an overflow port on the outer plate of a ship's hull, including: a grating assembly and a filter screen; the grating assembly includes an overflow grating, the overflow grating is installed at the inner end of the overflow port, the filter screen is installed at the outer end of the overflow port, and the overflow grating has a plurality of flow channels with gradually decreasing diameters from inside to outside.

[0006] Further, the overflow grating includes a grating frame body and a plurality of grating bars. The grating bars extend in the horizontal direction, and the plurality of grating bars are arranged at equal intervals from top to bottom in the grating frame body. The adjacent grating bars define the flow channels therebetween.

[0007] Furthermore, the grating bar includes a first grating bar, a third grating bar, and a second grating bar arranged in sequence from top to bottom. The first grating bar, the third grating bar, and the second grating bar are all horizontally arranged. The lower edge and the upper edge of the third grating bar are respectively connected to the second grating bar and the third grating bar;

[0008] The first grating bar of the grating bar at the uppermost position and the upper frame of the grating frame body define the flow channel. The second grating bar of the grating bar at the lowermost position and the lower frame of the grating frame body define the flow channel. Among the adjacent two grating bars, the second grating bar of the grating bar at the upper position and the first grating bar of the grating bar at the lower position define the flow channel.

[0009] Furthermore, the first grid bar extends obliquely upward from the upper edge of the third grid bar to the outside of the overflow port, and forms an angle of 20-30° with the horizontal plane; the second grid bar extends obliquely downward from the lower edge of the third grid bar to the outside of the overflow port, and forms an angle of 20-30° with the horizontal plane.

[0010] Further, a receiving groove for receiving the filter screen is provided on the outer plate of the ship's side.

[0011] Furthermore, a clamping portion is provided on the inner side of the receiving groove, and a clamping groove for cooperating with the clamping portion to be clamped is provided on the filter screen.

[0012] Further, the grid assembly further includes a hinge portion, the hinge portion is arranged below the overflow grid, the overflow grid is hinged to the hinge portion, and the overflow grid is rotatably installed at the inner end of the overflow port through the hinge portion.

[0013] Further, the grid assembly further includes a fastening portion, the fastening portion is fixedly arranged at the inner end of the overflow port, and the overflow grid can be fixedly connected to the inner end of the overflow port through the fastening portion.

[0014] Furthermore, the fastening portion includes a grid baffle, the grid baffle is fixedly arranged at the inner end of the overflow port and is located outside the overflow grid.

[0015] Furthermore, the fastening portion further includes a fastening nut and a fastening bolt, the fastening bolt sequentially passes through the overflow grid and the grid baffle, and the fastening nut is threadedly engaged with the fastening bolt.

[0016] Furthermore, the grid assembly includes at least two fastening portions, the fastening portions are circumferentially spaced apart at the inner end of the overflow port, and a lock wire is sequentially penetrated through one end of the fastening bolt close to the fastening nut.

[0017] Compared with the prior art, the overflow port filtering device for the outer plate of the ship's side in the embodiment of the present invention has the beneficial effects that: an overflow grid is provided, and the overflow grid has a plurality of flow-through channels with gradually decreasing diameters from the inside to the outside. When seawater overflows from the overflow tank and passes through the overflow grid, due to the certain water pressure of the overflowing seawater, the diameter of the flow-through channels gradually decreases from the inside to the outside, that is, the outflow area becomes smaller, increasing the water pressure of the overflowing seawater during outflow, so as to preliminarily wash the dirt attached to the filter screen with the relatively high water pressure overflowing seawater, and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view of the overflow port filtering device for the outer plate of the ship's side in the embodiment of the present invention;

[0019] Figure 2 isFigure 1 Cross-sectional view taken along line A-A;

[0020] Figure 3 Schematic structural diagram of the grille assembly and the overflow opening of the overflow opening filtering device for the outer plate of the ship's side in the embodiment of the present invention;

[0021] Figure 4 is Figure 2 Enlarged view at B;

[0022] Figure 5 is Figure 2 Enlarged view at C;

[0023] Figure 6 is Figure 2 Enlarged view at D.

[0024] In the figure, 1. grille assembly; 101. overflow grille; 1011. grille frame; 1012. grille bars; 10121. first grille bar; 10122. second grille bar; 10123. third grille bar; 102. flow-through channel; 103. hinge part; 104. fastening part; 1041. grille baffle; 1042. fastening bolt; 1043. fastening nut; 105. anti-loosening line;

[0025] 2. filter screen; 201. card slot;

[0026] 3. accommodation groove; 301. clamping part

[0027] 4. overflow opening;

[0028] 5. outer plate of the ship's side. Detailed implementation manners

[0029] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0030] In the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation to the present invention. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0031] In the description of the present invention, the terms "provided with", "set", "connected", and "placed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, components, or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, components, or parts. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] The technical solution of the present invention will be further described below in conjunction with embodiments and drawings.

[0034] As Figure 1 、 2 shown, a filtering device for an overflow port of an outer hull plate of a ship according to a preferred embodiment of an embodiment of the present invention includes: a grille assembly 1 and a filter screen 2; the grille assembly 1 includes an overflow grille 101, the overflow grille 101 is installed at the inner end of the overflow port 4, the filter screen 2 is installed at the outer end of the overflow port 4, and the overflow grille 101 has a plurality of flow-through channels 102 with diameters gradually decreasing from inside to outside.

[0035] Based on the above technical solution, the overflow grille 101 is provided, and the overflow grille 101 has a plurality of flow-through channels 102 with diameters gradually decreasing from inside to outside. When seawater overflows from the overflow tank and passes through the overflow grille 101, due to a certain water pressure of the overflowing seawater, the diameter of the flow-through channel 102 gradually decreases from inside to outside, that is, the outflow area becomes smaller from large, and the water pressure of the overflowing seawater increases. Thus, the relatively high water pressure of the overflowing seawater is used to preliminarily wash the dirt attached to the filter screen 2, and the structure is simple.

[0036] Preferably, the overflow grille 101 includes a grille frame body 1011 and a plurality of grille bars 1012. The grille bars 1012 extend in the horizontal direction, and the plurality of grille bars 1012 are arranged at equal intervals from top to bottom in the grille frame body 1011. The flow-through channels 102 are defined between adjacent grille bars 1012. The plurality of grille bars 1012 are arranged at intervals from top to bottom, and the adjacent grille bars 1012 define a plurality of flow-through channels 102 arranged at intervals from top to bottom, while maintaining the relatively high water pressure of the overflow and ensuring the overflow drainage volume.

[0037] More preferably, as Figure 5As shown, the grille bar 1012 includes a first grille bar 10121, a third grille bar 10123, and a second grille bar 10122 arranged in sequence from top to bottom. The first grille bar 10121, the third grille bar 10123, and the second grille bar 10122 are all horizontally arranged. The lower edge and the upper edge of the third grille bar 10123 are respectively connected to the second grille bar 10122 and the third grille bar 10123.

[0038] The first grille bar 10121 of the grille bar 1012 at the uppermost position and the upper frame of the grille frame 1011 define a flow-through channel 102. The second grille bar 10122 of the grille bar 1012 at the lowermost position and the lower frame of the grille frame 1011 define a flow-through channel 102. Among two adjacent grille bars 1012, the second grille bar 10122 of the grille bar 1012 at the upper position and the first grille bar 10121 of the grille bar 1012 at the lower position define a flow-through channel 102.

[0039] More preferably, the first grille bar 10121 extends obliquely upward from the upper edge of the third grille bar 10123 to the outside of the overflow port 4 and forms an angle of 20 to 30° with the horizontal plane; the second grille bar 10122 extends obliquely downward from the lower edge of the third grille bar 10123 to the outside of the overflow port 4 and forms an angle of 20 to 30° with the horizontal plane.

[0040] The angles between the first grille bar 10121 corresponding to adjacent grille bars 1012 and the horizontal plane and between the second grille bar 10122 and the horizontal plane are both 20 to 30°, preferably 30°. When the angle is greater than 30°, the outflow area is too small. Although the outflow water pressure is large, the overflow volume per unit time is excessively reduced, the overflow is not timely, which easily affects the hull balance, and the outflow area is small, so the flushing area of the outflow water on the filter screen 2 is small and the flushing effect is poor. When the angle is less than 20°, the outflow area is too large and the outflow water pressure is small, resulting in a poor flushing effect on the filter screen 2. When the angle is 20° to 30°, it can not only ensure a certain outflow area but also maintain a certain outflow water pressure, and the flushing effect on the filter screen 2 is good.

[0041] Preferably, as Figure 2 shown, a receiving groove 3 for receiving the filter screen 2 is provided on the ship's side outer plate 5. By providing the receiving groove 3 on the ship's side outer plate 5 and inserting the filter screen 2 into the receiving groove 3, it is convenient for disassembly, installation, and replacement of the filter screen 2.

[0042] More preferably, as Figure 6 shown, a clamping portion 301 is provided on the inner side of the receiving groove 3, and a clamping groove 201 for cooperating with the clamping portion 301 to be clamped is provided on the filter screen 2.

[0043] In a preferred embodiment, the filter screen 2 is preferably an elastic filter screen 2. The width of the filter screen 2 is slightly larger than the width of the accommodation groove 3. The elastic filter screen 2 is inserted into the accommodation groove 3 through elastic deformation. The elastic filter screen 2 protrudes towards the overflow port 4 and fits against the overflow port 4. Since a clamping groove 201 is formed on the elastic filter screen 2 and is elastically clamped with the clamping portion 301, the elastic filter screen 2 can be detachably fixed in the accommodation groove 3.

[0044] Preferably, the grille assembly 1 further includes a hinge portion 103. The hinge portion 103 is arranged below the overflow grille 101. The overflow grille 101 is hinged to the hinge portion 103. The overflow grille 101 is rotatably installed at the inner end of the overflow port 4 through the hinge portion 103. The hinge portion 103 is arranged below the overflow grille 101. The overflow grille 101 can rotate through the hinge portion 103, and the overflow grille 101 can be turned over to fit against one side of the overflow channel, facilitating the cleaning of the overflow channel.

[0045] Among them, an overflow channel is communicated between the overflow chamber and the overflow port 4.

[0046] Preferably, as Figure 4 shown, the grille assembly 1 further includes a fastening portion 104. The fastening portion 104 is fixedly arranged at the inner end of the overflow port 4. The overflow grille 101 can be fixedly connected to the inner end of the overflow port 4 through the fastening portion 104. The fastening portion 104 is provided to fix the overflow grille 101 at the inner end of the overflow port 4, ensuring the stability of the overflow grille 101.

[0047] More preferably, the fastening portion 104 includes a grille baffle 1041. The grille baffle 1041 is fixedly arranged at the inner end of the overflow port 4 and is located outside the overflow grille 101. The grille baffle 1041 is located outside the overflow grille 101, limiting the rotation range of the overflow grille 101, allowing the overflow grille 101 to rotate inward to fit against the overflow channel and rotate outward to abut against the grille baffle 1041, preventing the overflow grille 101 from loosening and falling out of the overflow channel.

[0048] More preferably, the fastening portion 104 further includes a fastening nut 1043 and a fastening bolt 1042. The fastening bolt 1042 passes through the overflow grille 101 and the grille baffle 1041 in sequence, and the fastening nut 1043 is threadedly engaged with the fastening bolt 1042. The setting of the fastening nut 1043 and the fastening bolt 1042 facilitates the fixing of the overflow grille 101.

[0049] More preferably, the grille assembly 1 includes at least two fastening parts 104 which are circumferentially spaced and arranged at the inner end of the overflow port 4. One end of the fastening bolt 1042 close to the fastening nut 1043 is sequentially penetrated by a lock wire 105. By sequentially penetrating a lock wire 105 at one end of the fastening bolt 1042 close to the fastening nut 1043, it can prevent the fastening bolt 1042 and the fastening nut 1043 from loosening under the impact of seawater, resulting in fixing failure.

[0050] In summary, the embodiment of the present invention provides an overflow port filtering device for the ship's outer plate. The overflow grille 101 is provided with a plurality of flow-through channels 102 with gradually decreasing diameters from the inside to the outside. When seawater overflows from the overflow tank and passes through the overflow grille 101, due to the certain water pressure of the overflowing seawater, the diameter of the flow-through channel 102 gradually decreases from the inside to the outside, and the outflow area becomes smaller, increasing the water pressure of the overflowing seawater during outflow. Thus, the dirt attached to the filter screen 2 can be preliminarily flushed by the overflowing seawater with relatively high water pressure, and the structure is simple. The filter screen 2 and the accommodating groove 3 are provided to facilitate the filtration of the seawater that has backflowed into the overflow port 4 and to facilitate the installation and disassembly of the filter screen 2. The hinge part 103 is provided, and the overflow grille 101 can rotate relative to the overflow port 4, facilitating manual cleaning of the overflow channel.

[0051] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A ship outer plate overflow port filtering device, characterized in that: include: Grille assemblies and filters; The grid assembly includes an overflow grid, the overflow grid is installed at the inner end of the overflow port, the filter screen is installed at the outer end of the overflow port, and the overflow grid has a plurality of flow channels with a diameter gradually decreasing from the inside to the outside; A receiving groove for receiving the filter is provided on the outer plate of the ship; A clamping portion is provided on the inner side of the accommodating groove, and a clamping groove that cooperates with the clamping portion is provided on the filter screen; The receiving tank comprises two first tank bodies and a second tank body, the two first tank bodies are arranged on both sides of the overflow port, the second tank body is arranged on the lower side of the overflow port, the two sides of the filter screen are slidably inserted on the two first tank bodies in a one-to-one correspondence, and the lower edge of the filter screen abuts against the tank bottom of the second tank body; the filter screen is an elastic filter screen, the width of the filter screen is greater than the width of the receiving tank, the filter screen is inserted into the receiving tank through elastic deformation, and the filter screen protrudes toward the overflow port to fit the overflow port; the clamping portion is arranged on the inner wall of the first tank body, and the clamping slot is elastically clamped with the clamping portion; The grille assembly further includes a hinged portion, the hinged portion is disposed below the overflow grille, the overflow grille is hingedly connected to the hinged portion, and the overflow grille is rotatably mounted on the inner side end of the overflow port through the hinged portion; Seawater overflows from the overflow tank. Since the overflow seawater has a certain water pressure, the water pressure of the overflow seawater increases when passing through the overflow grid, so that the dirt attached to the filter screen is washed away by the overflow seawater. The grille assembly further comprises a fastening portion, the fastening portion being fixedly disposed at the inner end of the overflow port, and the overflow grille can be fixedly connected to the inner end of the overflow port through the fastening portion; The fastening portion comprises a grille baffle, which is fixedly arranged at the inner end of the overflow port and located at the outer side of the overflow grille.

2. The ship outer plate overflow port filtering device according to claim 1, characterized in that: The overflow grille includes a grille frame and a plurality of grille bars. The grille bars are arranged horizontally. The plurality of grille bars are arranged in the grille frame at equal intervals from top to bottom. The flow passage is defined between adjacent grille bars.

3. The ship outer plate overflow port filtering device according to claim 2, characterized in that: The grid bars include a first grid bar, a third grid bar and a second grid bar which are sequentially arranged from top to bottom, the first grid bar, the third grid bar and the second grid bar are all arranged horizontally, and the lower edge and the upper edge of the third grid bar are connected to the second grid bar and the first grid bar respectively; The first grid bar of the uppermost grid bar and the upper frame of the grid frame define the flow channel, the second grid bar of the lowermost grid bar and the lower frame of the grid frame define the flow channel, and among the two adjacent grid bars, the second grid bar of the upper grid bar and the first grid bar of the lower grid bar define the flow channel.

4. The ship outer plate overflow port filtering device according to claim 3, characterized in that: The first grid bar extends obliquely upward from the upper edge of the third grid bar toward the outer side of the overflow port, and forms an angle of 20 to 30 degrees with the horizontal plane; the second grid bar extends obliquely downward from the lower edge of the third grid bar toward the outer side of the overflow port, and forms an angle of 20 to 30 degrees with the horizontal plane.

5. The ship outer plate overflow port filtering device according to claim 1, characterized in that: The fastening portion further comprises a fastening nut and a fastening bolt, wherein the fastening bolt passes through the overflow grille and the grille baffle in sequence, and the fastening nut is threadedly connected with the fastening bolt.

6. The ship outer plate overflow port filtering device according to claim 5, characterized in that: The grille assembly includes at least two fastening parts, which are circumferentially spaced apart and arranged at the inner end of the overflow port, and an anti-loosening wire is sequentially passed through one end of the fastening bolt close to the fastening nut.

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