Support for applying protective coating to cargo oil tanks

Abstract

This invention relates to the field of shipbuilding, specifically disclosing a support frame for applying a protective coating to cargo oil tanks. The frame includes a support platform and a bottom support platform. A lifting rod is mounted on the lower surface of the support platform. A hydraulic assembly is located on the outer side of the lifting rod, on the upper surface of the bottom support platform. A spring connects the piston plate and the sealing gasket. The adjustment assembly includes a first pulley, a ratchet, an elastic shaft, and a pawl. A lifting rope is mounted on the outer side of the first pulley. The other end of the lifting rope is connected to a second pulley inside the support platform. A fixed pulley is mounted on the inner side of the lifting rope inside the lower support frame. Applying torque to a rocker arm causes the first pulley to pull the lifting rope around. During winding, the rope, guided by the fixed pulley, pulls the second pulley vertically downwards, allowing the user to control the descent of the platform independently.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding, specifically to a bracket for applying a protective coating to cargo oil tanks. Background Technology

[0002] Crude oil tanks on ships are generally exposed to two environments: when the tanks are loaded and when they are empty. When the tanks are loaded, the interior is divided into three distinct areas: the top vapor space, which contains sulfur dioxide and water vapor released from the crude oil; the middle space, which is mainly exposed to the crude oil; and the bottom, which contains potentially acidic wastewater and sludge containing anaerobic bacteria. When the tanks are empty, the interior is divided into two areas: the air in the tank contains various vapors from the crude oil residue, and the bottom and the horizontal portion of the tank that extends through the deck are exposed to cargo residue, potentially acidic water, and sludge containing anaerobic bacteria. Therefore, the requirements for the corrosion resistance of cargo oil tanks are constantly increasing, and it is crucial to further standardize the protective coatings applied to the interior of cargo oil tanks during the construction of crude oil tankers.

[0003] However, due to the large overall size of the cargo oil tanks on the ship, the operation of painting using traditional supports requires workers to constantly go up and down, making the operation quite cumbersome. Summary of the Invention

[0004] To address the existing problems, the present invention provides a bracket for applying a protective coating to cargo oil tanks. This device, when used in conjunction with other devices, can effectively solve the problems mentioned in the background art.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A support frame for applying a protective coating to cargo oil tanks includes a support platform and a bottom support platform. A lifting rod is mounted on the lower surface of the support platform. A hydraulic assembly is installed on the outer side of the lifting rod, located on the upper surface of the bottom support platform. A sealing gasket is installed inside the hydraulic assembly, located on the outer side of the lifting rod. A piston plate is installed at the lower end of the lifting rod, located inside the hydraulic assembly. A spring connects the piston plate and the sealing gasket. An oil storage tank is provided inside the hydraulic assembly. An adjustment assembly is mounted on the upper surface of the support platform. A lower support is mounted on the upper surface of the bottom support platform. The adjustment assembly includes a first pulley, a ratchet, a flexible shaft, and a pawl. A lifting rope is mounted on the outer side of the first pulley. The other end of the lifting rope is connected to a second pulley inside the support platform. A fixed pulley is mounted on the inner side of the lifting rope, located inside the lower support. A rocker arm is mounted on the side of the adjustment assembly away from the ratchet.

[0007] As a further embodiment of the present invention: a piston ring is sleeved on the outer side of the piston plate, a first damping valve is provided on the upper surface of the piston plate, a damping baffle is provided below the first damping valve, and a damping spring is installed on the other side of the damping baffle.

[0008] As a further embodiment of the present invention: a connecting rod slot is installed on one side of the support platform, a paint roller groove is installed directly below the connecting rod slot on the outside of the hydraulic component, and a paint bucket groove is formed on the upper surface of the support platform.

[0009] As a further embodiment of the present invention: a movable groove is provided on the inner side of the connecting rod slot, a limit stop ring is provided on the inner side of the movable groove, and a damping rotating shaft is connected between the limit stop ring and the connecting rod slot.

[0010] As a further embodiment of the present invention: a lower sealing plate is provided below the piston plate, a one-way valve is provided inside the lower sealing plate, and a second damping valve is installed on one side of the one-way valve.

[0011] As a further embodiment of the present invention: the suspension rope is fixedly connected to the first pulley and the second pulley, and the fixed pulley is movably connected to the suspension rope.

[0012] As a further embodiment of the present invention: the first pulley drives the ratchet to rotate via a rotating shaft, and the ratchet engages with the pawl.

[0013] As a further embodiment of the present invention: the lifting rod is movably connected to the hydraulic component, and both the oil storage tank and the interior of the hydraulic component are filled with buffer solution.

[0014] As a further embodiment of the present invention: the limiting retaining ring is movably connected to the connecting rod groove through the damping rotating shaft.

[0015] As a further embodiment of the present invention: a protective railing is installed on the upper surface of the support platform, a roller is installed on the lower surface of the bottom support platform, and the piston plate is elastically connected to the spring.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Applying torque to the rocker arm causes the first pulley to pull the suspension rope around. During the winding process, the suspension rope is guided by the fixed pulley, causing the other end of the suspension rope to pull the second pulley to move vertically downwards. This allows the user to control the descent of the standing platform independently while working.

[0018] 2. When the support platform descends, the piston plate at the lower end of the lifting rod moves inside the hydraulic assembly. The oil inside the hydraulic assembly impacts the damping baffle and pulls the damping spring to compress it. This causes the buffer solution to be decelerated at the one-way valve inside the downward sealing plate and flow into the oil storage tank. This slows down the descent speed and prevents the operator from losing weight and falling during a rapid descent.

[0019] 3. The roller is placed inside the paint roller groove to prevent paint from dripping onto the lower surface of the hull. The roller rod is aligned with the position of the connecting rod clip. The rod is controlled to apply force towards the inside of the connecting rod clip groove, so that the rod pushes the two limit rings into the movable groove. After the rod is placed inside the connecting rod clip groove, the limit rings will have a limiting effect, and the rod will not fall over when the support platform is raised and lowered as a whole.

[0020] 4. When it is necessary to control the rise of the support platform, the pawl is disconnected from the ratchet. During the movement of the lifting rod, the piston ring will rub against the inner wall of the hydraulic components. The buffer fluid inside the oil reservoir is decelerated by the second damping valve, the reverse damping baffle, and the damping spring, thereby slowing down the overall rise of the lifting rod and the support platform. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of a bracket used for applying a protective coating to cargo oil tanks;

[0022] Figure 2 A cross-sectional view of the hydraulic components in the bracket used for applying a protective coating to the cargo oil tank;

[0023] Figure 3 A partial cross-sectional view of the hydraulic components in the support used for applying a protective coating to the cargo oil tank;

[0024] Figure 4 A schematic diagram of the piston plate in a bracket used for applying a protective coating to cargo oil tanks;

[0025] Figure 5 A schematic diagram of the positioning assembly in a bracket used for applying a protective coating to cargo oil tanks;

[0026] Figure 6 A schematic diagram of the drive mechanism in a support frame used for applying a protective coating to cargo oil tanks;

[0027] Figure 7 This is a cross-sectional view of the connecting rod slot in the bracket used for applying a protective coating to the cargo oil tank.

[0028] In the diagram: 1. Support platform; 2. Guardrail; 3. Lifting rod; 4. Hydraulic assembly; 5. Bottom support platform; 6. Adjustment assembly; 7. Paint bucket trough; 8. Lower bracket; 9. Paint roller trough; 10. Connecting rod slot; 11. Roller; 301. Spring; 302. Piston plate; 303. First damping valve; 304. Damping baffle; 305. Damping spring; 306. Piston ring; 401. Sealing gasket; 402. Oil reservoir; 403. Lower sealing plate; 404. Second damping valve; 405. Check valve; 601. First pulley; 602. Ratchet; 603. Elastic shaft; 604. Pawl; 605. Rocker arm; 606. Lifting rope; 607. Second pulley; 608. Fixed pulley; 1001. Movable groove; 1002. Limiting ring; 1003. Damping shaft. Detailed Implementation

[0029] The present invention will be further described below with reference to specific inventions. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0030] In the description of this specification, references to terms such as "this embodiment," "some embodiments," "example," "specific example," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example, and the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] like Figure 1-7As shown, this embodiment provides a bracket for applying a protective coating to a cargo oil tank, including a support platform 1 and a bottom support platform 5. A lifting rod 3 is mounted on the lower surface of the support platform 1. A hydraulic assembly 4 is disposed on the outer side of the lifting rod 3, located on the upper surface of the bottom support platform 5. The lifting rod 3 is movably connected to the hydraulic assembly 4. A sealing gasket 401 is installed on the outer side of the lifting rod 3, located inside the hydraulic assembly 4. A piston plate 302 is disposed at the lower end of the lifting rod 3, located inside the hydraulic assembly 4. A spring 301 connects the piston plate 302 and the sealing gasket 401. An oil storage tank 402 is provided inside the hydraulic assembly 4. Both the oil storage tank 402 and the interior of the hydraulic assembly 4 are filled with buffer solution. An adjustment assembly 6 is mounted on the upper surface of the support platform 1. The lower support platform 5 has a lower bracket 8 installed on its upper surface. The adjustment component 6 includes a first pulley 601, a ratchet 602, an elastic rotating shaft 603, and a pawl 604. The first pulley 601 drives the ratchet 602 to rotate through the rotating shaft. A suspension rope 606 is installed on the outer side of the first pulley 601. The other end of the suspension rope 606 is located inside the support platform 1 and connected to a second pulley 607. The suspension rope 606 is fixedly connected to the first pulley 601 and the second pulley 607. The ratchet 602 and the pawl 604 are engaged and locked. A fixed pulley 608 is installed on the inner side of the suspension rope 606 inside the lower bracket 8. The fixed pulley 608 is movably connected to the suspension rope 606. A rocker arm 605 is installed on the side of the adjustment component 6 away from the ratchet 602.

[0032] like Figure 3-4 As shown, a piston ring 306 is sleeved on the outer side of the piston plate 302. A first damping valve 303 is provided on the upper surface of the piston plate 302. A damping baffle 304 is provided below the first damping valve 303. A damping spring 305 is installed on the other side of the damping baffle 304. A lower sealing plate 403 is provided below the piston plate 302. A one-way valve 405 is provided inside the lower sealing plate 403. A second damping valve 404 is installed on one side of the one-way valve 405.

[0033] like Figure 1 , 7 As shown, a connecting rod slot 10 is installed on one side of the support platform 1. A paint roller groove 9 is installed directly below the connecting rod slot 10 on the outside of the hydraulic component 4. A paint bucket groove 7 is opened on the upper surface of the support platform 1. A movable groove 1001 is opened on the inner side of the connecting rod slot 10. A limit ring 1002 is provided on the inner side of the movable groove 1001. The limit ring 1002 is movably connected to the connecting rod slot 10 through a damping shaft 1003. A damping shaft 1003 is connected between the limit ring 1002 and the connecting rod slot 10. A guardrail 2 is installed on the upper surface of the support platform 1. A roller 11 is installed on the lower surface of the bottom support platform 5. A piston plate 302 is elastically connected to a spring 301.

[0034] The working principle of this invention is as follows: During use, the user stands above the support platform 1. The lifting rod 3 and hydraulic assembly 4 lift the support platform 1 to a higher plane. When painting is required on the lower plane of the hull, the user applies torque to the rocker arm 605, causing the first pulley 601 to pull the suspension rope 606 around. During the winding process, the suspension rope 606, guided by the fixed pulley 608, pulls the second pulley 607 vertically downwards. During this downward movement, to overcome the resistance of the lifting rod 3 and hydraulic assembly 4... The force between the hydraulic components 4 is controlled by the ratchet 602 and pawl 604, which provide one-way limiting to prevent the support platform 1 from rising again when the force is broken. When the support platform 1 descends, the piston plate 302 at the lower end of the lifting rod 3 moves inside the hydraulic component 4. The oil inside the hydraulic component 4 impacts the damping baffle 304, pulling the damping spring 305 to compress it. This causes the buffer solution to be decelerated at the one-way valve 405 inside the downward sealing plate 403 before flowing into the oil storage tank 402, thus achieving the overall descent of the support platform 1. When it is necessary to control the rise of the support platform 1, the ratchet 602 is disengaged after the ratchet 604 is subjected to force and the elastic shaft 603 is rotated. Therefore, under the reset action of the spring 301, the lifting rod 3 moves upward as a whole. During the movement of the lifting rod 3, the piston ring 306 rubs against the inner wall of the hydraulic component 4. The buffer fluid inside the oil reservoir 402 is decelerated by the action of the second damping valve 404, the reverse damping baffle 304, and the damping spring 305, thereby slowing down the rising speed of the lifting rod 3 and the support platform 1 as a whole. When the user applies paint using a roller above the support platform 1, the roller can be placed inside the paint roller groove 9 to prevent paint from dripping onto the lower surface of the hull. The roller rod is aligned with the position of the connecting rod slot 10, and the rod is controlled to apply force towards the inside of the connecting rod slot 10, so that the rod pushes the two limiting rings 1002 into the interior of the movable groove 1001. Under the action of the damping shaft 1003, the rod will cause the limiting rings 1002 to have a limiting effect after being placed inside the connecting rod slot 10, so that the rod will not fall over when the support platform 1 is raised and lowered as a whole.

[0035] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A support frame for applying a protective coating to cargo oil tanks, comprising a support platform (1) and a bottom support platform (5), characterized in that, A lifting rod (3) is installed on the lower surface of the support platform (1). A hydraulic assembly (4) is installed on the outer side of the lifting rod (3) on the upper surface of the bottom support platform (5). A sealing gasket (401) is installed on the outer side of the lifting rod (3) inside the hydraulic assembly (4). A piston plate (302) is installed at the lower end of the lifting rod (3) inside the hydraulic assembly (4). A spring (301) connects the piston plate (302) and the sealing gasket (401). An oil storage tank (402) is opened inside the hydraulic assembly (4). An adjustment assembly is installed on the upper surface of the support platform (1). (6) A lower bracket (8) is installed on the upper surface of the bottom support platform (5). The adjustment component (6) includes: a first pulley (601), a ratchet (602), an elastic rotating shaft (603), and a pawl (604). A suspension rope (606) is installed on the outer side of the first pulley (601). The other end of the suspension rope (606) is located inside the support platform (1) and connected to a second pulley (607). A fixed pulley (608) is installed on the inner side of the suspension rope (606) inside the lower bracket (8). A rocker arm (605) is installed on the side of the adjustment component (6) away from the ratchet (602). A piston ring (306) is sleeved on the outside of the piston plate (302). A first damping valve (303) is provided on the upper surface of the piston plate (302). A damping baffle (304) is provided below the first damping valve (303). A damping spring (305) is installed on the other side of the damping baffle (304). A lower sealing plate (403) is provided below the piston plate (302), and a one-way valve (405) is provided inside the lower sealing plate (403). A second damping valve (404) is installed on one side of the one-way valve (405). When the support platform (1) descends, the piston plate (302) at the lower end of the lifting rod (3) moves inside the hydraulic assembly (4). The oil inside the hydraulic assembly (4) impacts the damping baffle (304) and pulls the damping spring (305) to compress it, so that the buffer solution is decelerated at the one-way valve (405) inside the downward sealing plate (403) and flows into the oil storage tank (402). When it is necessary to control the support platform (1) to rise, the lifting rod (3) moves upward under the reset action of the spring (301). The buffer solution inside the oil storage tank (402) is decelerated by the second damping valve (404), the reverse damping baffle (304), and the damping spring (305) to slow down the speed at which the lifting rod (3) and the support platform (1) rise.

2. The bracket for applying a protective coating to a cargo oil tank according to claim 1, characterized in that, A connecting rod slot (10) is installed on one side of the support platform (1), and a paint roller groove (9) is installed directly below the connecting rod slot (10) on the outside of the hydraulic component (4). A paint bucket groove (7) is opened on the upper surface of the support platform (1).

3. The bracket for applying a protective coating to a cargo oil tank according to claim 2, characterized in that, The inner side of the connecting rod slot (10) is provided with a movable slot (1001), and the inner side of the movable slot (1001) is provided with a limit stop ring (1002). A damping shaft (1003) is connected between the limit stop ring (1002) and the connecting rod slot (10).

4. The bracket for applying a protective coating to a cargo oil tank according to claim 1, characterized in that, The hoisting rope (606) is fixedly connected to the first pulley (601) and the second pulley (607), and the fixed pulley (608) is movably connected to the hoisting rope (606).

5. The bracket for applying a protective coating to a cargo oil tank according to claim 1, characterized in that, The first pulley (601) drives the ratchet (602) to rotate via a rotating shaft, and the ratchet (602) engages with the pawl (604).

6. The bracket for applying a protective coating to a cargo oil tank according to claim 1, characterized in that, The lifting rod (3) is movably connected to the hydraulic component (4), and the oil storage tank (402) and the hydraulic component (4) are both filled with buffer solution.

7. The bracket for applying a protective coating to a cargo oil tank according to claim 3, characterized in that, The limiting retaining ring (1002) is movably connected to the connecting rod slot (10) through the damping rotating shaft (1003).

8. The bracket for applying a protective coating to a cargo oil tank according to claim 1, characterized in that, The upper surface of the support platform (1) is equipped with a guardrail (2), the lower surface of the bottom support platform (5) is equipped with a roller (11), and the piston plate (302) is elastically connected to the spring (301).

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