A marine fastener corrosion protection coating spray device

Abstract

The utility model discloses a kind of marine fastener anticorrosion coating spraying devices, including function box, feed pipe, discharge pipe and spray head, rotating frame is installed on the spray head, rotating groove is equipped in the inner wall of discharge pipe, rotating shaft is equipped with through mounting bracket and drive motor on function box and discharge pipe, rotating shaft is connected with spray head by rotating mechanism, two pump chambers and rotating chamber are equipped in function box, reciprocating screw is rotationally equipped in rotating chamber, two reciprocating screw and drive motor are connected by rotating mechanism. The utility model spray head can rotate, help more evenly cover marine fastener surface in the process of spraying, improve the uniformity and quality of coating, especially for the fastener of complex shape can realize better spraying effect.

Description

Technical Field

[0001] This utility model relates to the field of anti-corrosion spraying technology, and in particular to an anti-corrosion coating spraying device for ship fasteners. Background Technology

[0002] During shipbuilding and maintenance, ship fasteners are exposed to harsh marine environments for extended periods, suffering from corrosion from seawater, salt spray, humid air, and marine life. To ensure the performance and lifespan of ship fasteners and improve the overall structural safety of the ship, applying anti-corrosion coatings using ship fastener anti-corrosion coating spraying equipment has become a crucial protective measure.

[0003] Currently, most common anti-corrosion coating spraying devices for ship fasteners employ a fixed nozzle design. However, ship fasteners have complex shapes and irregular structures, making it difficult for fixed nozzles to cover their entire surface comprehensively and evenly. During ship operation, these insufficiently protected areas are the first to suffer damage such as seawater corrosion, significantly shortening the service life of ship fasteners and posing a serious threat to the overall structural safety of the ship. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a spraying device for anti-corrosion coating of ship fasteners.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A ship fastener anti-corrosion coating spraying device includes a functional box, an inlet pipe, an outlet pipe, and a nozzle. A rotating frame is installed on the nozzle, and a rotating groove is provided on the inner wall of the outlet pipe. A rotating shaft is provided on the functional box and the outlet pipe via a mounting frame and a drive motor. The rotating shaft is connected to the nozzle via a rotating mechanism. The functional box contains two pump chambers and a rotating chamber. A reciprocating screw is rotatably installed in each rotating chamber. The two reciprocating screws are connected to the drive motor via the rotating mechanism. A piston plate is slidably sealed in the pump chamber. The piston plate is connected to the reciprocating screw via a reciprocating mechanism. The pump chamber is connected to the outlet pipe via a connecting channel.

[0007] Preferably, the rotating mechanism includes a rotating gear mounted on a rotating shaft, and the nozzle is provided with a gear ring that meshes with the rotating gear.

[0008] Preferably, the rotating mechanism includes a transmission gear mounted on a reciprocating lead screw, two of the transmission gears meshing with each other, and a rotating gear on the rotating shaft meshing with one of the transmission gears.

[0009] Preferably, the reciprocating mechanism includes a screw sleeve threaded onto a reciprocating screw, and the screw sleeve is connected to a piston plate via a connecting bracket.

[0010] Preferably, both the feed pipe and the connecting channel are Y-shaped, and both the feed pipe and the connecting channel are equipped with a one-way valve.

[0011] Preferably, one of the piston plates is initially close to the nozzle, and the other piston plate is initially far from the nozzle.

[0012] Preferably, the vertical cross-section of the rotating frame is L-shaped, and the connecting frame is U-shaped.

[0013] The beneficial effects of this utility model are:

[0014] 1. By alternating the operation of two pump chambers and piston plates, and by designing one-way valves in the feed pipe and connecting channel, a continuous supply of anti-corrosion coating is achieved, ensuring that the nozzle always sprays material, improving spraying efficiency, and avoiding problems such as uneven spraying or interruption caused by interruption of coating supply.

[0015] 2. The cooperation between the rotating gear and the gear ring in the rotating mechanism enables the nozzle to rotate, which helps to cover the surface of the ship fasteners more evenly during the spraying process, improves the uniformity and quality of the coating, and achieves better spraying results, especially for fasteners with complex shapes.

[0016] 3. The rotating mechanism cleverly transmits the power of the rotating shaft to two reciprocating lead screws through the meshing of the transmission gear and the rotating gear, making the power transmission of the entire device more reasonable and compact, reducing additional power sources and complex transmission structures, and improving the stability and reliability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a ship fastener anti-corrosion coating spraying device proposed in this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the right-side view structure;

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A;

[0020] Figure 4 for Figure 2 A vertical section diagram;

[0021] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0022] In the diagram: 1 Functional box, 2 Feed pipe, 3 Discharge pipe, 4 Nozzle, 5 Mounting bracket, 6 Drive motor, 7 Rotating shaft, 8 Rotary gear, 9 Gear ring, 10 Pump chamber, 11 Rotating chamber, 12 Reciprocating screw, 13 Piston plate, 14 Connecting bracket, 15 Connecting channel, 16 Rotating bracket, 17 Rotating groove, 18 Rotating gear, 19 Transmission gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-5 A ship fastener anti-corrosion coating spraying device includes a functional box 1, a feed pipe 2, a discharge pipe 3 and a nozzle 4. A rotating frame 16 is installed on the nozzle 4. A rotating groove 17 is provided on the inner wall of the discharge pipe 3. The vertical cross-section of the rotating frame 16 is L-shaped, as shown in the figure. The above shape design can ensure that the rotating frame 16 can drive the nozzle 4 to rotate relative to the discharge pipe 3, but does not detach from the discharge pipe 3. The rotating frame 16 and the rotating groove 17 achieve sealed sliding contact using existing technology.

[0025] The functional box 1 and the discharge pipe 3 are equipped with a rotating shaft 7 via a mounting bracket 5 and a drive motor 6. The rotating shaft 7 is connected to the nozzle 4 via a rotating mechanism. The functional box 1 is equipped with two pump chambers 10 and a rotating chamber 11. A reciprocating screw 12 is rotatably installed in each rotating chamber 11. The two reciprocating screws 12 are connected to the drive motor 6 via a rotating mechanism. A piston plate 13 is sealed and slidably installed in the pump chamber 10. The piston plate 13 is connected to the reciprocating screw 12 via a reciprocating mechanism. The pump chamber 10 is connected to the discharge pipe 3 via a connecting channel 15.

[0026] The rotating mechanism includes a rotating gear 8 mounted on a rotating shaft 7, and a gear ring 9 on the nozzle 4 that meshes with the rotating gear 8. When the rotating shaft 7 rotates, it can drive the nozzle 4 to rotate in conjunction with the rotating gear 8 and the gear ring 9.

[0027] The rotating mechanism includes a transmission gear 19 mounted on a reciprocating lead screw 12, with two transmission gears 19 meshing with each other. A rotating gear 18 is provided on the rotating shaft 7, meshing with one of the transmission gears 19. While the rotating shaft 7 rotates, the transmission gear 19 and the rotating gear 18 can also drive the two reciprocating lead screws 12 to rotate.

[0028] The reciprocating mechanism includes a screw sleeve threaded onto the reciprocating screw 12, which is connected to the piston plate 13 via a connecting frame 14. As shown in the figure, the connecting frame 14 slides through the inner wall of the pump chamber 10 and extends into the rotating chamber 11. Therefore, the connecting frame 14 has a built-in limit to prevent the screw sleeve from rotating with the reciprocating screw 12.

[0029] Both the feed pipe 2 and the connecting channel 15 are Y-shaped, and both are equipped with one-way valves. One piston plate 13 is initially close to the nozzle 4, and the other piston plate 13 is initially far from the nozzle 4. The one-way valve design enables unidirectional material flow. The initial positions of the two piston plates 13 are designed so that when one pump chamber 10 is feeding, the other pump chamber 10 is discharging, ensuring that the nozzle 4 always has material being sprayed out.

[0030] Furthermore, the two ends of the feed pipe are located inside the material storage device, enabling the material to be sucked in.

[0031] Components not specifically described in this utility model are all standard parts and can be purchased from the market. The specific connection methods for each component all employ mature methods from the prior art, and will not be detailed here. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0032] In use, the drive motor 6 starts, driving the rotating shaft 7 to rotate. As the rotating shaft 7 rotates, the rotating gear 8 mounted on it rotates accordingly. The rotating gear 8 meshes with the gear ring 9 on the nozzle 4, thereby causing the nozzle 4 to rotate relative to the discharge pipe 3, achieving rotating spraying of the nozzle 4. Simultaneously, the rotating gear 18 on the rotating shaft 7 meshes with one of the transmission gears 19. Because the two transmission gears 19 mesh with each other, they drive the two reciprocating screws 12 to rotate within the rotating chamber 11. When the reciprocating screws 12 rotate, the screw sleeve threaded onto them, under the limiting action, performs reciprocating linear motion along the reciprocating screws 12. The screw sleeve is connected to the piston plate 13 through the connecting bracket 14, driving the piston plate 13 to perform reciprocating linear motion within the pump chamber 10. The two piston plates 13 have different initial positions, one closer to the nozzle 4 and the other farther away. When one piston plate 13 moves away from the nozzle 4, the pressure inside the pump chamber 10 decreases, and the anti-corrosion coating enters the pump chamber 10 through the feed pipe 2. At the same time, the other piston plate 13 moves closer to the nozzle 4, increasing the pressure inside the pump chamber 10. The anti-corrosion coating in the pump chamber 10 is then sprayed out of the nozzle 4 through the connecting channel 15 and the discharge pipe 3. The two pump chambers 10 alternately feed and discharge, ensuring that the nozzle 4 always has material being sprayed out.

[0033] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A spraying device for anti-corrosion coating of ship fasteners, comprising a functional box (1), a feed pipe (2), a discharge pipe (3), and a nozzle (4), characterized in that, The nozzle (4) is equipped with a rotating frame (16), and the inner wall of the discharge pipe (3) is provided with a rotating groove (17). The functional box (1) and the discharge pipe (3) are provided with a rotating shaft (7) through a mounting frame (5) and a drive motor (6). The rotating shaft (7) is connected to the nozzle (4) through a rotating mechanism. The functional box (1) is provided with two pump chambers (10) and a rotating chamber (11). The rotating chamber (11) is provided with a reciprocating screw (12) rotating in each of them. The two reciprocating screws (12) are connected to the drive motor (6) through a rotating mechanism. The pump chamber (10) is provided with a piston plate (13) sliding in a sealed manner. The piston plate (13) is connected to the reciprocating screw (12) through a reciprocating mechanism. The pump chamber (10) is connected to the discharge pipe (3) through a connecting channel (15).

2. The anti-corrosion coating spraying device for ship fasteners according to claim 1, characterized in that, The rotating mechanism includes a rotating gear (8) mounted on a rotating shaft (7), and the nozzle (4) is provided with a gear ring (9) that meshes with the rotating gear (8).

3. The anti-corrosion coating spraying device for ship fasteners according to claim 2, characterized in that, The rotating mechanism includes a transmission gear (19) mounted on a reciprocating lead screw (12), two transmission gears (19) meshing with each other, and a rotating gear (18) meshing with one of the transmission gears (19) is provided on the rotating shaft (7).

4. The anti-corrosion coating spraying device for ship fasteners according to claim 3, characterized in that, The reciprocating mechanism includes a screw sleeve threaded onto a reciprocating screw (12), and the screw sleeve is connected to a piston plate (13) via a connecting bracket (14).

5. The anti-corrosion coating spraying device for ship fasteners according to claim 4, characterized in that, Both the feed pipe (2) and the connecting channel (15) are Y-shaped, and both the feed pipe (2) and the connecting channel (15) are equipped with one-way valves.

6. The anti-corrosion coating spraying device for ship fasteners according to claim 5, characterized in that, One of the piston plates (13) is initially close to the nozzle (4), and the other piston plate (13) is initially far away from the nozzle (4).

7. The anti-corrosion coating spraying device for ship fasteners according to claim 6, characterized in that, The vertical cross-section of the rotating frame (16) is L-shaped, and the connecting frame (14) is U-shaped.

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