Self-cleaning type antifouling curtain with multi-layer structure

Abstract

The invention discloses a self-cleaning type antifouling curtain of a multi-layer structure, and relates to the technical field of antifouling curtains, the self-cleaning type antifouling curtain comprises a buoyancy layer and a curtain body integrally connected with the buoyancy layer, and a cleaning structure is arranged on one side of the buoyancy layer; the cleaning structure comprises a cleaning piece attached to the surface of the buoyancy layer, a floating layer providing buoyancy is arranged at the bottom end of the cleaning piece, the cleaning piece further comprises a connecting piece used for installing the cleaning piece, the cleaning piece can move up and down in the connecting piece by taking surge as power, and due to the fact that the gravity of the floating layer and the gravity of the buoyancy layer are different, the front-back height difference exists when the floating height changes. The height difference enables the cleaning part to move on the buoyancy layer, surge is used as power, the cleaning part is driven to clean the surface of the buoyancy layer, cleaning is achieved in the using process of the antifouling curtain, stains caused by long-time adhesion of impurities on the surface of the buoyancy layer are effectively removed, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-pollution curtains, and particularly relates to a self-cleaning multi-layer anti-pollution curtain. Background Art

[0002] In ocean engineering: in land reclamation projects and dredging projects, the disturbance of marine bottom mud by ship machinery equipment increases the concentration of marine bottom mud suspended matter, causing pollution to mangroves, corals, and marine aquaculture in the surrounding areas of the project. Existing anti-pollution curtains mainly intercept and control pollutants within an effective area, allowing pollutants with a specific gravity greater than water to accelerate precipitation after encountering the interception, and pollutants with a specific gravity less than water to float within the control range. The early anti-pollution curtains mainly evolved from oil pollution curtains.

[0003] During the use of the anti-pollution curtain, impurities floating on the sea surface come into contact with the outer surface of the floating body. When in contact for a long time, the impurities will adhere to the outer surface of the floating body. Under the action of long-term sunlight, the impurities dry and form dirt on the outer surface of the floating body. The longer the time, the more difficult it is to clean. Long-term adhesion to the surface of the floating body is likely to cause damage to the floating body. When the anti-pollution curtain is recovered, it is also necessary to strongly clean the surface of the floating body, increasing the cleaning difficulty and cost. Summary of the Invention

[0004] The purpose of the present invention is to provide a self-cleaning multi-layer anti-pollution curtain, which has a height difference to enable the cleaning member to move in the buoyancy layer. By using the surge as power, the cleaning member is driven to clean the surface of the buoyancy layer, effectively removing the stains caused by long-term adhesion of impurities on the surface of the buoyancy layer, and having the advantage of improving the cleaning efficiency.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A self-cleaning multi-layer anti-pollution curtain, including a buoyancy layer and a curtain body integrally connected to the buoyancy layer, and a cleaning structure is provided on one side of the buoyancy layer;

[0006] The cleaning structure includes a cleaning member that fits on the surface of the buoyancy layer. A floating layer for providing buoyancy is provided at the bottom end of the cleaning member. It also includes a connecting member for installing the cleaning member. The cleaning member can move up and down in the connecting member by relying on the surge as power. When the cleaning member moves up and down, its cleaning surface cleans the surface of the buoyancy layer.

[0007] Further, the curtain body is composed of two layers of PP fiber layers and one layer of PET cloth layer, and the two layers of PP fiber layers sandwich the PET cloth layer inside.

[0008] Further, the two layers of PP fiber layers and the one layer of PET cloth layer are fused with each other by needling. The curtain body is a high-filtering and water-permeable material, and the surface of the curtain body is a dense smooth film shape.

[0009] Further, the surface of the curtain body is treated by ironing, and a counterweight member is connected below the curtain body.

[0010] Further, the cleaning member includes a cleaning layer, a connecting layer, a limiting rod, and a limiting slider. The cleaning layer is connected to one side of the connecting layer, the other side of the connecting layer is connected to the limiting rod, and one end of the limiting rod is connected to the limiting slider.

[0011] Further, the connecting member includes a limiting bracket, a chute, and a connecting bent rod. The connecting bent rod is installed at the bottom end of the limiting bracket, and a chute is formed inside the limiting bracket.

[0012] Further, the limiting slider is arranged in the chute and slides up and down in the chute.

[0013] Further, the cleaning layer is composed of a plurality of strip-shaped seats, and cleaning brushes are arranged on the docking surface between the strip-shaped seats and the buoyancy layer.

[0014] Further, a plurality of the strip-shaped seats are docked with one side of the connecting layer through elastic members.

[0015] Further, a plurality of the strip-shaped seats are adaptively attached to the surface of the buoyancy layer under the extrusion of the elastic members.

[0016] The technical effects and advantages of the present invention:

[0017] 1. The curtain body and the buoyancy layer of the present invention are integrated, without horizontal joints, so the strength is stronger, the anti-sea wave impact force is increased, the service life is extended, the surface of the curtain body is highly dense, smooth, has high strength, high barrier property, and excellent high filtration effect of water molecules, and can prevent the mud suspension generated during the construction process from blocking the pores of the curtain body in the construction environment, ensuring the long-term water permeability rate and long-term pollution interception rate of the curtain body, thereby ensuring the durability of the curtain body and reducing the cost of the whole construction process.

[0018] 2. The present invention drives the floating layer and the buoyancy layer to float together through the surging of the sea waves. When floating, the buoyancy layer and the floating layer can be driven, and the height changes. Due to the different weights of the floating layer and the buoyancy layer, there will be a front-back height difference when the floating height changes. The height difference prompts the cleaning member to move on the buoyancy layer. By using the wave surge as power, the cleaning member is driven to clean the surface of the buoyancy layer, realizing cleaning during the use of the anti-pollution curtain, effectively removing the stains caused by long-term attachment of impurities on the surface of the buoyancy layer, and improving the cleaning efficiency.

[0019] 3. The docking rod of the present invention is detachably connected to the cleaning structure. When the anti-pollution curtain is not in use, the cleaning structure can be detached from the rotating chain, which will not affect the folding and storage of the anti-pollution curtain in the later stage. When the anti-pollution curtain is used again, the cleaning structure can be reinstalled. A limiting slot is opened below the buoyancy layer, and one end of the inner ring of the rotating chain is inserted into the limiting slot. The adjusting assembly is used to drive the cleaning member to move along the length of the buoyancy layer, so as to realize cleaning while moving the entire buoyancy layer during use, improve the cleaning efficiency. The limiting slot is used to limit the chain body below the buoyancy layer when the rotating chain rotates, preventing the rotating chain from deforming under the influence of sea waves, resulting in a change in the distance between the cleaning structure and the buoyancy layer, and ensuring that the cleaning layer can always be in contact with the surface of the buoyancy layer.

[0020] 4. The strip-shaped seat of the present invention is extruded by the elastic member and can be locally adapted according to the arc shape of the side of the buoyancy layer, improving the adaptability and also increasing the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present invention;

[0022] Figure 2 is the schematic diagram of the curtain body processing of the present invention;

[0023] Figure 3 is the overall structural schematic diagram of Embodiment 2 of the present invention;

[0024] Figure 4 is the semi-sectional view of the local structure of the buoyancy layer of the present invention;

[0025] Figure 5 is the schematic diagram of the connection structure between the cleaning structure and the buoyancy layer of the present invention;

[0026] Figure 6 of the present invention Figure 5 enlarged view of part A;

[0027] Figure 7 is the schematic diagram of the connection structure between the cleaning structure and the driving assembly of the present invention;

[0028] Figure 8 is the semi-sectional view of the cleaning structure of the present invention;

[0029] Figure 9 is the sectional view of the cleaning layer structure of Embodiment 3 of the present invention.

[0030] In the figure:

[0031] 1. Buoyancy layer; 11. Inflatable layer; 12. Driving groove; 2. Curtain body; 21. PP fiber layer; 22. PET cloth layer; 3. Cleaning structure; 31. Cleaning part; 311. Cleaning layer; 3111. Strip seat; 312. Connecting layer; 313. Limiting rod; 314. Limiting slider; 32. Floating layer; 33. Connecting part; 331. Limiting bracket; 332. Chute; 333. Connecting bent rod; 4. Driving assembly; 41. Rotating chain; 411. Docking rod; 42. Driving rod; 43. Driver. Detailed implementation manner

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] To better understand a self-cleaning multi-layer anti-pollution curtain provided in this embodiment, first, a brief introduction to the existing anti-pollution curtain structure is given below. The original offshore anti-pollution curtain is a combination of a floating body, foam, and fabric. There is a horizontal knot between the curtain body 2 and the floating body, with only 85% of the original strength. Due to the relatively large sea waves and wind force, over time, the curtain body 2 will fall off and be damaged. In addition, its curtain cloth is filtered by small holes, and after long-term use, the holes will be blocked, resulting in the inability to penetrate water. The material of the curtain body 2 is mainly impermeable PVC fabric, which is a coating material and is airtight and impermeable. When this material is applied to offshore projects, due to the impermeability of the curtain body 2, the depth of the curtain body 2 cannot be too deep, otherwise the force of the wave surge and the rising and falling tide seawater will tear the curtain body 2 or cause the curtain body 2 to displace. The specification aims to solve the above technical problems. The embodiment of the present application provides a self-cleaning multi-layer anti-pollution curtain. The curtain body 2 and the buoyancy layer 1 are integrated, without a horizontal joint, so the strength is stronger, the anti-sea wave impact force is increased, and the service life is extended. The surface of the curtain body 2 is highly dense, smooth, with high strength, high barrier, and excellent high filtration effect of water molecules, which can ensure that the mud and suspended matter generated during the construction process in the construction environment of the anti-pollution curtain body 2 do not block the pores of the curtain body 2, guarantee the long-term water permeability rate and pollution interception rate of the curtain body 2, and thus ensure the durability of the curtain body 2.

[0034] Example 1: Refer to Figure 1 - Figure 2, which is the first embodiment of the present invention, provides an anti-pollution curtain with a self-cleaning multi-layer structure, including a buoyancy layer 1 and a curtain body 2 integrally connected to the buoyancy layer 1. A counterweight is connected to the lower part of the curtain body 2, which makes the curtain body 2 hang vertically in the sea water. It should be noted that the counterweight is made of non-metallic materials. The curtain body 2 and the buoyancy layer 1 are integrated without horizontal joints, so the strength will be stronger, the impact resistance of sea waves will increase, and the service life will be extended. The surface of the curtain body 2 of the offshore anti-pollution curtain has been polished to increase its smoothness, reduce the friction, and the sludge will slide down automatically without blocking the pores.

[0035] The curtain body 2 is composed of two layers of PP fiber layers 21 and one layer of PET cloth layer 22. The two layers of PP fiber layers 21 sandwich the PET cloth layer 22 inside. The two layers of PP fiber layers 21 and the one layer of PET cloth layer 22 are fused with each other by needling. The curtain body 2 is a high-filtering and water-permeable material, and the surface of the curtain body 2 is a dense smooth film. There is no chance for suspended flocs of mud in the water to block the pores, but water molecules can pass through the curtain body 2. The curtain body 2 can play a role in blocking pollution and filtering water, improving the service life of the anti-pollution curtain, and ensuring the long-term effectiveness of the pollution interception rate during the use of the curtain body 2.

[0036] The anti-pollution curtain cloth is composed of three materials compounded together. PET cloth layer 22: The high-strength mesh cloth is used as the supporting material, with a strength ranging from 50KN to 200KN, and the material is polyester PET. The PP fiber layer 21 is made of a mixture of two materials. The first one: the modified high-molecular polymer fiber, with the material being PP. This fiber has good air permeability, drainage performance and thermoformability, and is the basic water-permeable filtering material for making the water-permeable anti-pollution curtain cloth. The second one: the modified high-molecular polymer low-temperature fiber, with the material being PP / PE. The characteristic of this fiber is easy heat bonding and good thermal stability. At low temperature, it can bond the whole material into shape. The proportion of this fiber in the fiber is very small. The first material and the second material are combed and evenly mixed in proportion to form a mixed fiber, that is, the PP fiber layer 21. The manufacturing process of the anti-pollution curtain cloth: It is divided into two steps. The first step: Lay and needle-compound the high-strength PET mesh cloth and the modified high-molecular polymer PP mixed fiber on a high-speed needle-punching compounding machine to form a composite material with the high-strength PET mesh cloth in the middle and the modified high-molecular polymer PP mixed fiber evenly on the two surface layers. It is necessary to ensure that the content of the modified high-molecular polymer PP mixed fiber is equal on the two surface layers. The second step: Heat-dry, hot-press, calender the material to form a smooth surface layer, and make the anti-pollution curtain body cloth. The surface of the curtain body 2 is highly dense, smooth, with high strength, high barrier, and excellent high-filtering effect on water molecules. It can ensure that the mud suspension generated during the construction process in the construction environment does not block the pores of the curtain body 2, guarantee the long-term water permeability rate and long-term pollution interception rate of the curtain body 2, thereby ensuring the durability of the curtain body 2 and reducing the cost of the whole construction process.

[0037] Example two: Refer to Figure 3 - Figure 8, which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a cleaning structure 3 is provided on one side of the buoyancy layer 1. One end of the cleaning structure 3 is connected to the driving component 4, and the driving component 4 is arranged inside the buoyancy layer 1;

[0038] The cleaning structure 3 includes a cleaning member 31 that fits on the surface of the buoyancy layer 1. A floating layer 32 that provides buoyancy is arranged at the bottom end of the cleaning member 31. It also includes a connecting member 33 for installing the cleaning member 31. The cleaning member 31 can move up and down in the connecting member 33 by relying on the surge as the power;

[0039] When the cleaning member 31 moves up and down, its cleaning surface cleans the surface of the buoyancy layer 1. And the driving component 4 can drive the cleaning member 31 to move along the length direction of the buoyancy layer 1. The floating layer 32 and the buoyancy layer 1 are driven to float together by the surging of the sea waves. When floating, the buoyancy layer 1 and the floating layer 32 can be driven, and the height changes. Due to the different gravities of the floating layer 32 and the buoyancy layer 1, there will be a front-back height difference when the floating height changes. The height difference prompts the cleaning member 31 to be able to move on the buoyancy layer 1. By using the surge as the power, the cleaning member 31 is driven to clean the surface of the buoyancy layer 1, effectively removing the stains caused by the long-term attachment of impurities on the surface of the buoyancy layer 1 and improving the cleaning efficiency.

[0040] An inflatable layer 11 is arranged inside the buoyancy layer 1. A driving groove 12 is covered inside the inflatable layer 11. The adjusting component 4 is arranged in the driving groove 12. The adjusting component 4 includes a rotating chain 41, a driving rod 42 and a driver 43. The output end of the driver 43 is connected to the driving rod 42. Two symmetrical rotating chains 41 are sleeved on the driving rod 42. It should be noted that a rubber waterproof material is covered on the surface of the rotating chain 41 to prevent the metal material from being corroded by seawater, thus rusting and damaging, and improving the overall service life. One side of the rotating chain 41 is connected to a docking rod 411. The docking rod 411 is docked with the cleaning structure 3, and the docking rod 411 is detachably connected to the cleaning structure 3. When the anti-fouling curtain is not in use, the cleaning structure 3 can be detached from the rotating chain 41, which will not affect the folding and storage of the anti-fouling curtain in the later stage. When the anti-fouling curtain is used again, the cleaning structure 3 can be installed again. A limiting slot is opened below the buoyancy layer 1. One end of the inner circle of the rotating chain 41 is inserted into the limiting slot. The adjusting component 4 is used to drive the cleaning member 31 to move along the length of the buoyancy layer 1, realizing the cleaning while moving of the entire buoyancy layer 1 during use and improving the cleaning efficiency. The limiting slot is used to limit the chain body below the buoyancy layer 1 when the rotating chain 41 rotates, preventing the rotating chain 41 from deforming under the influence of sea waves, resulting in a distance change between the cleaning structure 3 and the buoyancy layer 1, and ensuring that the cleaning layer 311 can always be in contact with the surface of the buoyancy layer 1. It should be noted that two cleaning structures 3 can be provided, and the adjusting component 4 can drive the two cleaning structures 3 to move simultaneously, and then clean both sides of the buoyancy layer 1 to ensure the cleaning effect.

[0041] The cleaning member 31 includes a cleaning layer 311, a connecting layer 312, a limiting rod 313 and a limiting slider 314. The cleaning layer 311 is connected to one side of the connecting layer 312. The other side of the connecting layer 312 is connected to the limiting rod 313. One end of the limiting rod 313 is connected to the limiting slider 314. The connecting member 33 includes a limiting bracket 331, a chute 332 and a connecting bent rod 333. The bottom end of the limiting bracket 331 is connected to the docking rod 411 through the connecting bent rod 333. A chute 332 is formed in the limiting bracket 331. The limiting slider 314 is arranged in the chute 332 and slides up and down in the chute 332. The chute 332 is used for the cleaning member 31 to move along it and limit its moving direction. When there is an upgrade difference caused by floating, one end of the cleaning member 31 moves in the chute 332, and the whole connecting member 33 is used to limit the distance between the cleaning member 31 and the buoyancy layer 1 to ensure that the cleaning member 31 will not float away.

[0042] Embodiment 3: Refer to Figure 9 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment. Since the buoyancy layer 1 needs to be inflated to generate buoyancy, but the outer side surface of the inflated buoyancy layer 1 cannot be ensured to be in the same horizontal plane. The outer side surface of the inflated buoyancy layer 1 is in an arc state. When the cleaning layer 311 is in an integral block, it cannot be locally adapted according to the arc shape of the outer side surface of the buoyancy layer 1, resulting in the inability to clean the arc area.

[0043] To solve the above problems, in this embodiment, the structure form of the cleaning layer 311 is changed to solve the problem of inability to be locally adapted. The cleaning layer 311 is composed of a plurality of strip-shaped seats 3111. Cleaning brushes are arranged on the docking surface of the strip-shaped seats 3111 and the buoyancy layer 1. The plurality of strip-shaped seats 3111 are docked with one side of the connecting layer 312 through elastic members. The plurality of strip-shaped seats 3111 are adaptively attached to the surface of the buoyancy layer 1 under the extrusion of the elastic members. The strip-shaped seats 3111 are extruded by the elastic members and can be locally adapted according to the arc shape of the side surface of the buoyancy layer 1, improving the adaptability and also increasing the cleaning effect.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-cleaning multi-layer anti-fouling curtain, comprising a buoyancy layer (1) and a curtain body (2) integrally connected to the buoyancy layer (1), characterized in that: A cleaning structure (3) is provided on one side of the buoyancy layer (1); The cleaning structure (3) comprises a cleaning piece (31) which is in contact with the surface of the buoyancy layer (1), a floating layer (32) providing buoyancy is arranged at the bottom of the cleaning piece (31), and a connecting piece (33) for installing the cleaning piece (31). The cleaning piece (31) can move up and down in the connecting piece (33) by relying on surge as power, and when the cleaning piece (31) moves up and down, its cleaning surface cleans the surface of the buoyancy layer (1).

2. The self-cleaning multi-layer anti-fouling curtain according to claim 1, characterized in that: The curtain body (2) is composed of two PP fiber layers (21) and one PET cloth layer (22), and the two PP fiber layers (21) sandwich the PET cloth layer (22) inside.

3. The self-cleaning multi-layer anti-fouling curtain according to claim 2, characterized in that: The two PP fiber layers (21) and the one PET cloth layer (22) are fused together by needle punching. The curtain body (2) is a high-filtration water-permeable material, and the surface of the curtain body (2) is a dense and smooth film.

4. The self-cleaning multi-layer anti-fouling curtain according to claim 3, characterized in that: The surface of the curtain body (2) is subjected to ironing treatment, and a counterweight is connected below the curtain body (2).

5. The self-cleaning multi-layer anti-fouling curtain according to claim 1, characterized in that: The cleaning member (31) comprises a cleaning layer (311), a connecting layer (312), a limiting rod (313) and a limiting slider (314); the cleaning layer (311) is connected to one side of the connecting layer (312); the other side of the connecting layer (312) is connected to the limiting rod (313); and one end of the limiting rod (313) is connected to the limiting slider (314).

6. The self-cleaning multi-layer anti-fouling curtain according to claim 5, characterized in that: The connecting member (33) comprises a limiting bracket (331), a sliding groove (332) and a connecting bent rod (333); the connecting bent rod (333) is installed at the bottom end of the limiting bracket (331); and the sliding groove (332) is provided in the limiting bracket (331).

7. The self-cleaning multi-layer anti-fouling curtain according to claim 6, characterized in that: The limiting sliding block (314) is arranged in the sliding groove (332) and slides up and down in the sliding groove (332).

8. The self-cleaning multi-layer anti-fouling curtain according to claim 7, characterized in that: The cleaning layer (311) is composed of a plurality of strip seats (3111), and a cleaning brush is provided on the interface between the strip seats (3111) and the buoyancy layer (1).

9. The self-cleaning multi-layer anti-fouling curtain according to claim 8, characterized in that: A plurality of the strip seats (3111) are butted against one side of the connection layer (312) via elastic members.

10. The self-cleaning multi-layer anti-fouling curtain according to claim 9, characterized in that: The plurality of strip seats (3111) are adaptively fitted to the surface of the buoyancy layer (1) under the pressure of the elastic member.

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