Pretreatment equipment for ocean engineering anticorrosive paint before coating

Abstract

The invention provides pretreatment equipment for ocean engineering anticorrosive paint before coating, and relates to the technical field of ocean paint coating auxiliary tools. The pretreatment equipment comprises a cleaner shell, a handle is hinged to the upper portion of the cleaner shell, a shoveling driving piece is installed on the upper portion of the cleaner shell through a bolt, and a crank is fixedly connected to the lower end of a rotating shaft of the shoveling driving piece; the surface of an object is brushed through the cleaning rolling brush, small-size and stubborn impurities are cleaned through friction, compared with a cleaning mode of manually operating a scraping plate and a brush in the prior art, the manual labor amount is reduced, and the cleaning effect and efficiency of meter selling are further improved by improving the scraping speed and frequency; the problems that in the traditional pretreatment work before ship anticorrosive paint coating, barnacles and other shellfish marine organisms attached to the surface of a ship body are generally scraped by manually holding a scraper with hands, and the shellfish marine organisms are stably attached, so that the manual cleaning and scraping operation difficulty is large, the labor intensity is high, and small-size attachments are difficult to clean are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of marine coating application auxiliary tools, and particularly to a pretreatment device for marine engineering anti-corrosion coatings before coating. Background Art

[0002] Marine engineering anti-corrosion coatings are used to protect facilities such as ships, offshore platforms, cross-sea bridges, and subsea pipelines from corrosion damage in harsh marine environments. By forming a physical barrier to isolate the penetration of chloride ions and seawater, and using the sacrificial anode principle to provide electrochemical protection, they can effectively resist factors such as wave erosion, biofouling, and ultraviolet aging, significantly extend the service life of the facilities, ensure the safety of marine engineering, and reduce maintenance costs. For ships, to ensure that the hull always has good anti-corrosion performance, the hull surface needs to be regularly treated and re-coated with anti-corrosion coatings. However, due to the attachment of marine organisms such as barnacles, the ship surface becomes rough, which is not conducive to the stable attachment of anti-corrosion coatings. Therefore, before applying the anti-corrosion coatings, it is necessary to manually clean the surface to be coated to improve the surface smoothness and increase the adhesion strength of the coatings.

[0003] In the traditional pretreatment work before applying ship anti-corrosion coatings, generally, manual scraping with a scraper is used to remove barnacles and other shellfish marine organisms attached to the hull surface. However, the shellfish organisms are firmly attached, resulting in difficult manual scraping operations, high labor intensity, and difficulty in cleaning small-volume attachments. Summary of the Invention

[0004] The present invention provides a pretreatment device for marine engineering anti-corrosion coatings before coating, which solves the problems in the traditional pretreatment work before applying ship anti-corrosion coatings. Generally, manual scraping with a scraper is used to remove barnacles and other shellfish marine organisms attached to the hull surface. However, the shellfish organisms are firmly attached, resulting in difficult manual scraping operations, high labor intensity, and difficulty in cleaning small-volume attachments.

[0005] The present invention provides a pre-treatment device for coating an anti-corrosion coating for ocean engineering, specifically including: a cleaner housing, with a handle hinged above the cleaner housing. A shoveling driving member is installed above the cleaner housing through bolts. The lower end of the rotating shaft of the shoveling driving member is fixedly connected to a crank, and the end of the crank is fixedly connected to a connecting rod. The end of the connecting rod is hinged to a shovel plate pushing seat, and the shovel plate pushing seat is slidably connected below the cleaner housing. A first shovel plate and a second shovel plate are installed in front of the shovel plate pushing seat. The front edges of the first shovel plate and the second shovel plate are provided with serrated structures. A brush driving member is fixedly connected above the cleaner housing, and a scale cleaning brush is rotatably connected below the cleaner housing. The two cleaning brushes are connected by a chain, and the brush driving member is connected and drives the cleaning brush located at the rear through chain drive. Two dust exhaust ports are opened on the cleaner housing, and a dust exhaust fan is respectively installed inside the two dust exhaust ports. The air outlet of the dust exhaust fan is communicated with a dust guiding channel, and the dust guiding channel is fixedly connected above the cleaner housing. A dust separation box is provided in front of the dust guiding channel. A dust collection socket is opened above the dust separation box, and a dust collection box is inserted into the dust collection socket. The dust collection box is fixedly connected to the dust separation box through a lock, and an exhaust filter plate is provided on the top of the dust collection box. A dust collection inlet is penetrated and opened on the rear wall of the dust collection box.

[0006] Further, two guide rods are fixedly connected below the cleaner housing, and two pushing seat guide ports are opened on the top of the shovel plate pushing seat. The pushing seat guide ports are slidably connected to the guide rods.

[0007] Further, two racks are fixedly connected below the cleaner housing, and idle wheels are respectively rotatably connected to the two side surfaces of the shovel plate pushing seat. The idle wheels are meshed with the racks.

[0008] Further, a connecting roller is rotatably connected transversely through the shovel plate pushing seat. One driven gear is fixedly connected to each end of the connecting roller, and the driven gears are meshed with the idle wheels.

[0009] Further, an eccentric push plate is fixedly connected to the middle of the connecting roller, and the included angle between the axis of the eccentric push plate and the axis of the connecting roller is 25 degrees.

[0010] Further, two pushing seat guide rails are fixedly connected in front of the shovel plate pushing seat, and the two pushing seat guide rails are parallel to each other.

[0011] Further, a first sliding sleeve is installed behind the first shovel plate through screws, and a first reciprocating push frame with a "U" shape is installed behind the first sliding sleeve through screws. A first reciprocating push wheel is rotatably connected to the inner end of the first reciprocating push frame, and the first reciprocating push wheel is in rolling connection with the eccentric push plate.

[0012] Furthermore, a second sliding sleeve is installed at the rear of the second shovel plate by screws, and a second reciprocating push frame with a "U"-shaped structure is installed at the rear of the second sliding sleeve by screws, and the inner end of the second reciprocating push frame is rotatably connected to a second reciprocating push wheel, and the second reciprocating push wheel is rollingly connected to the eccentric push plate.

[0013] Furthermore, the cross-sections of the first shovel plate and the second shovel plate are both "L"-shaped structures, the first shovel plate and the second shovel plate are overlapped, and the tooth ends of the serrated structures on the front edges of the first shovel plate and the second shovel plate are opposite.

[0014] The present invention provides a pretreatment device for marine engineering anti-corrosion coating, which has the following beneficial effects: The paint pretreatment equipment before coating in the present invention is specially used for surface pretreatment before anti-corrosion coating in marine engineering, and can be used to remove shellfish and marine organisms attached to the surface of marine facilities such as ships. A first shovel plate and a second shovel plate are provided, and the shellfish on the surface of the object are removed by the first shovel plate and the second shovel plate. At the same time, the shovel drive member, the crank, the connecting rod and the shovel plate push seat cooperate to form a crank slider mechanism, which drives the first shovel plate and the second shovel plate to reciprocate linearly at high speed, so as to realize automatic removal of shellfish on the surface of the object. At the same time, the cleaning roller brush is driven by the roller brush drive member to rotate at high speed, and the surface of the object is cleaned by the cleaning roller brush. Small volume and stubborn impurities are cleaned by friction. Compared with the cleaning method of manually operating scrapers and brushes in the prior art, the manual labor is reduced, and the surface cleaning effect and efficiency are further improved by increasing the scraping speed and frequency.

[0015] In addition, the function of dust collection is provided. In the process of cleaning the surface of an object by the equipment, the friction between the high-speed rotation of the cleaning roller brush and the surface of the object causes impurities and paint powder with pollutants on the surface of the ship to fall off. The dust exhaust fan is operated to generate negative pressure inside the outer shell of the cleaner, and the impurities and paint powder with pollutants on the surface of the ship are sucked into the dust collecting box through the air flow. The impurities and paint powder with pollutants on the surface of the ship are intercepted by the exhaust filter plate, and the filtered clean air is discharged. This can prevent the paint powder with pollutants on the surface of the ship from polluting the surrounding environment and affecting the health of construction workers, reduce the emission of pollutants, and is beneficial to protecting the marine environment.

[0016] In addition, through the cooperation of the first shovel plate and the second shovel plate, while the first shovel plate and the second shovel plate move back and forth under the push of the shovel plate push seat, through the cooperation of a series of transmission mechanisms, the first shovel plate and the second shovel plate move left and right reciprocally following the back-and-forth movement of the shovel plate push seat, so that the serrated structures of the first shovel plate and the second shovel plate move in opposite directions, generating a repeated shearing effect. When performing the ship surface cleaning operation, the attachments on the ship surface are squeezed, sheared, and repeatedly impacted with the serrations through the repeated shearing between the serrations of the two shovel plates, which is beneficial to the rapid detachment of the attachments on the ship surface. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0019] In the drawings: Figure 1 A schematic diagram showing the overall structure of the present application is shown; Figure 2 A schematic diagram showing the structure of the bottom of the present application is shown; Figure 3 A schematic diagram showing the structure of the bottom of the cleaner housing of the present application is shown; Figure 4 A schematic diagram showing the structure of the shoveling driving member of the present application is shown; Figure 5 A schematic diagram showing the structure of the connecting roller of the present application is shown; Figure 6 A schematic diagram showing the structure when the first shovel plate and the second shovel plate are displaced under the push of the eccentric push plate of the present application is shown; Figure 7 A schematic diagram showing the structure when the first shovel plate experiences the separation from the second shovel plate of the present application is shown; Figure 8 A schematic diagram showing the structure inside the dust collection box of the present application is shown; Figure 9 A schematic diagram showing the structure of the dust collection box of the present application is shown; Figure 10 A schematic diagram showing the Figure 3 partial enlarged structure at A in the present application; Figure 11 A schematic diagram showing the Figure 6 partial enlarged structure at B in the present application.

[0020] Reference Signs: 1. Cleaner housing; 101. Dust exhaust port; 102. Dust guiding channel; 103. Dust separation box; 104. Dust collection socket; 105. Guide rod; 106. Rack; 2. Handle; 3. Dust collection box; 301. Dust collection inlet; 302. Exhaust filter plate; 4. Dust exhaust fan; 5. Shovel plate push seat; 501. Push seat guide port; 502. Idler wheel; 503. Connecting roller; 504. Driven gear; 505. Eccentric push plate; 506. Push seat guide rod; 6. First shovel plate; 601. First sliding sleeve; 602. First reciprocating push frame; 603. First reciprocating push wheel; 7. Second shovel plate; 701. Second sliding sleeve; 702. Second reciprocating push frame; 703. Second reciprocating push wheel; 8. Shovel driving member; 801. Crank; 802. Connecting rod; 9. Brush driving member; 10. Cleaning brush. Detailed implementation mode

[0021] 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 of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 11 : The present invention provides a pre-treatment device for applying an anti-corrosion coating on an offshore engineering facility, including: a cleaner housing 1, a handle 2 is hinged above the cleaner housing 1, a shovel driving member 8 is installed above the cleaner housing 1 by bolts, the lower end of the rotating shaft of the shovel driving member 8 is fixedly connected to a crank 801, the end of the crank 801 is fixedly connected to a connecting rod 802, the end of the connecting rod 802 is hinged to a shovel plate push seat 5, the shovel plate push seat 5 is slidably connected below the cleaner housing 1, a first shovel plate 6 and a second shovel plate 7 are installed in front of the shovel plate push seat 5, and serrated structures are provided at the front edges of the first shovel plate 6 and the second shovel plate 7; when using this device to clean the surface of an offshore facility, hold the handle 2 to control the cleaner housing 1 to fit on the surface of the object to be cleaned, start the shovel driving member 8, and through the cooperation of the shovel driving member 8, the crank 801, the connecting rod 802 and the shovel plate push seat 5, a crank-slider mechanism is formed to push the shovel plate push seat 5 and the first shovel plate 6 and the second shovel plate 7 in front of it to perform high-speed reciprocating linear motion, and the attachments are separated from the object surface by the impact and friction of the serrations and the attachments on the ship surface, improving the smoothness of the surface of the offshore facility.

[0023] In an embodiment of the present disclosure, a roller brush driving member 9 is fixedly connected above the cleaner housing 1, and a measuring scale cleaning roller 10 is rotatably connected below the cleaner housing 1. The two cleaning rollers 10 are connected by a chain, and the roller brush driving member 9 is connected and drives the cleaning roller 10 at the rear through chain drive; the measuring scale cleaning roller 10 is driven by the roller brush driving member 9 to rotate at a high speed, and the cleaning roller 10 is used to clean the surface of an object, and small-volume and stubborn impurities are cleaned by friction to improve the cleaning effect.

[0024] In an embodiment of the present disclosure, two dust discharge ports 101 are provided on the cleaner housing 1, and a dust discharge fan 4 is respectively installed in each of the two dust discharge ports 101. The air outlet of the dust discharge fan 4 communicates with a dust guiding channel 102. The dust guiding channel 102 is fixedly connected above the cleaner housing 1. A dust separation box 103 is provided in front of the dust guiding channel 102. A dust collection socket 104 is provided above the dust separation box 103, and a dust collection box 3 is inserted into the dust collection socket 104. The dust collection box 3 is fixedly connected to the dust separation box 103 by a lock. An exhaust air filter plate 302 is provided on the top of the dust collection box 3, and a dust collection inlet 301 is formed through the rear wall of the dust collection box 3; when impurities and paint powder with pollutants on the surface of the ship fall off due to the friction formed by the high-speed rotation of the cleaning roller 10 and the surface of the object, the dust discharge fan 4 operates to generate negative pressure inside the cleaner housing 1, and the impurities and paint powder with pollutants on the surface of the ship are transported to the inside of the dust collection box 3 through the dust guiding channel 102 and the dust separation box 103 by the air flow. The exhaust air filter plate 302 intercepts the impurities and paint powder with pollutants on the surface of the ship, and discharges the filtered clean air, which can avoid the problem that the paint powder with pollutants on the surface of the ship pollutes the surrounding environment and affects the health of construction workers, reduce the emission of pollutants, and reduce the damage to the marine environment. The dust collection box 3 can be pulled out through the dust collection socket 104, which is beneficial for dumping sundries and cleaning the equipment.

[0025] In an embodiment of the present disclosure, two guide rods 105 are fixedly connected below the cleaner housing 1. Two push seat guide openings 501 are provided at the top of the shovel plate push seat 5, and the push seat guide openings 501 are slidably connected to the guide rods 105, which play a guiding role, so that the shovel plate push seat 5 can reciprocate straight inside the cleaner housing 1.

[0026] In the disclosed embodiment, two racks 106 are fixedly connected below the cleaner housing 1, and idler wheels 502 are rotatably connected to the two side surfaces of the shovel push seat 5 respectively, and the idler wheels 502 are meshedly connected to the racks 106. The shovel push seat 5 is laterally penetrated and rotatably connected to a connecting roller 503, and both ends of the connecting roller 503 are respectively fixedly connected to a driven gear 504, and the driven gear 504 is meshedly connected to the idler wheel 502; when the shovel push seat 5 moves back and forth, it pushes the idler wheel 502 to roll under the rack 106, and when the idler wheel 502 rotates, it forms a gear transmission with the driven gear 504, and drives the connecting roller 503 to rotate in linkage.

[0027] Embodiment 2, on the basis of embodiment 1, an eccentric push plate 505 is fixedly connected in the middle of the connecting roller 503, the included angle between the axis of the eccentric push plate 505 and the axis of the connecting roller 503 is 25 degrees, two push seat guide rails 506 are fixedly connected in front of the shovel plate push seat 5, the two push seat guide rails 506 are parallel to each other, a first sliding sleeve 601 is installed at the rear of the first shovel plate 6 by screws, and a first reciprocating push frame 602 of a "U"-shaped structure is installed at the rear of the first sliding sleeve 601 by screws, The inner end of the first reciprocating push frame 602 is rotatably connected to the first reciprocating push wheel 603, and the first reciprocating push wheel 603 is rollingly connected to the eccentric push plate 505. The rear of the second shovel plate 7 is installed with a second sliding sleeve 701 by screws, and the rear of the second sliding sleeve 701 is installed with a "U"-shaped second reciprocating push frame 702 by screws. The inner end of the second reciprocating push frame 702 is rotatably connected to the second reciprocating push wheel 703, and the second reciprocating push wheel 703 is rollingly connected to the eccentric push plate 505. The first shovel plate The cross-sections of the first shovel plate 6 and the second shovel plate 7 are both "L"-shaped structures. The first shovel plate 6 and the second shovel plate 7 are overlapped, and the tooth ends of the serrated structures on the front edges of the first shovel plate 6 and the second shovel plate 7 are opposite. When the shovel plate push seat 5 moves forward and backward, the idler wheel 502, the rack 106, and the driven hobbing gear 504 cooperate to drive the connecting roller 503 and the eccentric push plate 505 to reciprocate. As the eccentric push plate 505 rotates, the first reciprocating push wheel 603 and the second reciprocating push wheel 703 roll on the surface of the eccentric push plate 505, pushing the first shovel plate 6 and the second shovel plate 7 to reciprocate left and right in front of the shovel plate push seat 5, and controlling the movement directions of the first shovel plate 6 and the second shovel plate 7 to be opposite. In this process, the serrated structures of the first shovel plate 6 and the second shovel plate 7 move in opposite directions, producing a repeated shearing effect. When performing a ship surface cleaning operation, the attachments on the ship surface are squeezed and sheared by the repeated shearing between the saw teeth of the two shovel plates, and repeatedly collide with the saw teeth, which can accelerate the shedding of the attachments on the ship surface.

[0028] Working principle of this embodiment: First, hold the handle 2 to control the cleaner housing 1 to fit on the surface of the marine facility where the paint is to be applied, and control the cleaner housing 1 to be pushed forward at a constant speed. Start the shoveling drive member 8 and the roller brush drive member 9. Through the cooperation of the shoveling drive member 8, the crank 801, the connecting rod 802 and the shovel plate push seat 5, a crank-slider mechanism is formed to push the shovel plate push seat 5 and the first shovel plate 6 and the second shovel plate 7 in front of it to move in a high-speed reciprocating straight line. The attachments are separated from the object surface by the impact and friction of the sawteeth and the attachments on the ship surface. The cleaning roller brush 10 is driven by the roller brush drive member 9 to rotate at a high speed, and the object surface is cleaned by the cleaning roller brush 10. Small-volume and stubborn impurities are cleaned by friction to improve the smoothness of the marine facility surface. When the impurities and the paint powder with contaminants on the ship surface fall off, the dust exhaust fan 4 operates to generate negative pressure inside the cleaner housing 1. The impurities and the paint powder with contaminants on the ship surface are transported to the inside of the dust collection box 3 through the dust guide channel 102 and the dust separation box 103. The impurities and the paint powder with contaminants on the ship surface are intercepted by the exhaust air filter plate 302, and the filtered clean air is discharged, which can avoid the problem that the paint powder with contaminants on the ship surface pollutes the surrounding environment and affects the health of construction workers, reduce pollutant emissions. When the shovel plate push seat 5 moves back and forth, it pushes the idle wheel 502 to roll under the rack 106. When the idle wheel 502 rotates, it forms a gear drive with the driven gear 504, driving the connecting drive shaft 503 to rotate, driving the eccentric push plate 505 to rotate reciprocally. As the eccentric push plate 505 rotates, the first reciprocating push wheel 603 and the second reciprocating push wheel 703 roll on the surface of the eccentric push plate 505, pushing the first shovel plate 6 and the second shovel plate 7 to move left and right reciprocally in front of the shovel plate push seat 5, and controlling the moving directions of the first shovel plate 6 and the second shovel plate 7 to be opposite. During this process, the sawtooth structures of the first shovel plate 6 and the second shovel plate 7 move in opposite directions, producing a repeated shearing effect. When performing the ship surface cleaning operation, the attachments on the ship surface are squeezed, sheared, and repeatedly impacted with the sawteeth through the repeated shearing between the sawteeth of the two shovel plates, so that the attachments on the ship surface fall off faster.

[0029] In this article, the following points need to be noted: 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0030] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0031] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. An equipment for pre-treatment before coating an anti-corrosion coating for ocean engineering, comprising: Cleaner housing (1), a handle (2) is hinged above the cleaner housing (1), characterized in that a shoveling drive member (8) is installed above the cleaner housing (1) by bolts, the lower end of the rotating shaft of the shoveling drive member (8) is fixedly connected with a crank (801), the end of the crank (801) is fixedly connected with a connecting rod (802), the end of the connecting rod (802) is hinged with a shovel plate push seat (5), the shovel plate push seat (5) is slidably connected below the cleaner housing (1), a first shovel plate (6) and a second shovel plate (7) are installed in front of the shovel plate push seat (5), the front edges of the first shovel plate (6) and the second shovel plate (7) are provided with serrated structures, a brush roller drive member (9) is fixedly connected above the cleaner housing (1), a measuring scale cleaning brush roller (10) is rotatably connected below the cleaner housing (1), the two cleaning brush rollers (10) are connected by a chain, the brush roller drive member (9) is connected and drives the cleaning brush roller (10) at the rear through chain drive, the cleaner housing (1) is provided with two dust discharge ports (101), a dust discharge fan (4) is installed in each of the two dust discharge ports (101), the air outlet of the dust discharge fan (4) is communicated with a dust guide channel (102), the dust guide channel (102) is fixedly connected above the cleaner housing (1), a dust separation box (103) is arranged in front of the dust guide channel (102), a dust collection socket (104) is opened above the dust separation box (103), a dust collection box (3) is inserted into the dust collection socket (104), the dust collection box (3) is fixedly connected with the dust separation box (103) through a lock, an exhaust filter plate (302) is arranged on the top of the dust collection box (3), and a dust collection inlet (301) is penetrated and opened on the rear wall of the dust collection box (3).

2. The pre-treatment equipment for anti-corrosion coating of ocean engineering according to claim 1, characterized in that, Two guide rods (105) are fixedly connected below the cleaner housing (1), two push seat guide openings (501) are opened on the top of the shovel plate push seat (5), and the push seat guide openings (501) are slidably connected with the guide rods (105).

3. The pretreatment equipment for an anti-corrosion coating of ocean engineering according to claim 2, characterized in that, Two racks (106) are fixedly connected below the cleaner housing (1), idle wheels (502) are rotatably connected to the two side surfaces of the shovel plate push seat (5) respectively, and the idle wheels (502) are meshed with the racks (106).

4. The pretreatment equipment for an anti-corrosion coating of ocean engineering according to claim 3, characterized in that, A connecting roller (503) is rotatably connected transversely through the shovel plate push seat (5), a driven gear (504) is fixedly connected to each end of the connecting roller (503), and the driven gear (504) is meshed with the idle wheel (502).

5. The pretreatment equipment for anti-corrosion coating of ocean engineering according to claim 4, characterized in that, An eccentric push plate (505) is fixedly connected to the middle of the connecting roller (503), and the axis of the eccentric push plate (505) forms an angle of twenty-five degrees with the axis of the connecting roller (503).

6. The pretreatment equipment for an anti-corrosion coating of ocean engineering according to claim 5, characterized in that, Two push seat guide rails (506) are fixedly connected in front of the shovel plate push seat (5), and the two push seat guide rails (506) are parallel to each other.

7. The pretreatment equipment for anti-corrosion coating of ocean engineering according to claim 6, characterized in that, A first sliding sleeve (601) is installed at the rear of the first shovel plate (6) by screws. A first reciprocating push frame (602) with a "U" shape is installed at the rear of the first sliding sleeve (601) by screws. A first reciprocating push wheel (603) is rotatably connected to the inner end of the first reciprocating push frame (602), and the first reciprocating push wheel (603) is in rolling connection with an eccentric push plate (505).

8. An equipment for pre-treatment before coating an anti-corrosion coating for ocean engineering according to claim 7, characterized in that, A second sliding sleeve (701) is installed at the rear of the second shovel plate (7) by screws. A second reciprocating push frame (702) with a "U" shape is installed at the rear of the second sliding sleeve (701) by screws. A second reciprocating push wheel (703) is rotatably connected to the inner end of the second reciprocating push frame (702), and the second reciprocating push wheel (703) is in rolling connection with an eccentric push plate (505).

9. The pretreatment equipment for an anti-corrosion coating of an ocean engineering before coating is characterized in that, The cross-sections of the first shovel plate (6) and the second shovel plate (7) are both in an "L" shape. The first shovel plate (6) and the second shovel plate (7) are overlapped, and the tooth ends of the serrated structures at the front edges of the first shovel plate (6) and the second shovel plate (7) are opposite.

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