A sandblasting apparatus for rust removal from a ship

Abstract

The present application belongs to the technical field of ship rust removal and sand blasting, and particularly relates to a sand blasting device for ship rust removal, which comprises a sand blasting box and a sand blasting machine, and further comprises a base, a rotating frame fixedly installed on the top of the base, a winding roller rotatably installed in the rotating frame, a sand blasting pipe wound on the winding roller, a placing rack fixedly installed on the top of the base and located at one side of the winding roller, a sand blasting gun provided on the placing rack, a handle fixedly installed on the bottom of the sand blasting gun, a sliding groove formed in the sand blasting gun, a sliding rod slidingly installed in the sliding groove, and a rotating head rotatably installed on one end of the sliding rod and extending to outside through one side of the sliding groove. The present application can facilitate personnel to adjust the length of the sliding rod, ensure that the personnel can adjust the length of the sliding rod at will according to the size of the corner, so that the sand blasting and rust removal can be performed on corners of different sizes, and the present application can also facilitate personnel to adjust the rotating head at multiple angles, so that the rotating head can be adapted to sand blasting work at different angles.

Description

Technical Field

[0001] This invention belongs to the field of ship rust removal and sandblasting technology, and particularly relates to a sandblasting device for ship rust removal. Background Technology

[0002] In the daily maintenance and upkeep of ships, rust removal is a crucial step in ensuring the structural strength and service life of the vessel. Ship hulls and various components have numerous corners, crevices, and other special areas. Due to their confined spaces and complex structures, rust removal in these areas is extremely difficult. Incomplete rust removal can easily lead to the spread of corrosion, affecting the safe operation of the ship. Currently, sandblasting has become a widely used technique in ship rust removal operations due to its high efficiency and thoroughness. However, existing ship rust removal sandblasting equipment has significant limitations when operating on corners and other special locations.

[0003] On the one hand, the length adjustment of the sandblasting head in existing sandblasting equipment is inconvenient, which makes it difficult to adapt flexibly to corners of different sizes. Either the sandblasting head is too short to reach the deep corners, or the sandblasting head is too long, which hinders operation in narrow spaces, resulting in poor rust removal in corners and leaving potential rust hazards. On the other hand, the sandblasting head angle adjustment capability of the equipment is insufficient. Since the angles of ship corners are diverse, it not only affects the accuracy of sandblasting and the rust removal effect, but also increases the difficulty of operation for operators and reduces the overall work efficiency. In view of this, we propose a sandblasting equipment for ship rust removal. Summary of the Invention

[0004] The purpose of this invention is to provide a sandblasting device for rust removal from ships, so as to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a sandblasting device for rust removal from ships, comprising a sandblasting box and a sandblasting machine, and further comprising:

[0006] A base is provided, with a rotating frame fixedly installed on its top. A take-up roller is rotatably installed inside the rotating frame, and a sandblasting tube is wound around the take-up roller. A placement frame is fixedly installed on the top of the base and on one side of the take-up roller. A sandblasting gun is provided on the placement frame, and a handle is fixedly installed on the bottom of the sandblasting gun. A sliding groove is provided inside the sandblasting gun, and a sliding rod is slidably installed inside the sliding groove. One end of the sliding rod extends through one side of the sliding groove to the outside and is rotatably mounted with a rotating head. A nozzle is fixedly installed around the periphery of the rotating head.

[0007] A limiting component, which is located inside the sliding rod and is used to limit the sliding rod;

[0008] A connecting groove is formed inside a sliding rod. A connecting pipe is slidably installed inside the connecting groove. One end of the connecting pipe passes through one side of the connecting groove and the sandblasting gun and is fixed to one end of the sandblasting pipe. A sealing ring is fixedly installed on the periphery of the connecting pipe.

[0009] An adjustment component is located inside the rotating head and is used to adjust the rotation angle of the rotating head.

[0010] In this technical solution, when sandblasting is needed to remove rust from small corners, the operator can release the sliding rod by using the limiting component. The operator can then pull the sliding rod out of the sliding groove. Simultaneously, the movement of the sliding rod will cause the connecting groove to slide on the connecting pipe. Under the sealing effect of the sealing ring, it can be ensured that there is no leakage in the connecting groove. Until the sliding rod is pulled out to a suitable length, the limiting component can limit the sliding rod, ensuring that the operator can easily adjust the length of the extended sliding rod. This allows the operator to freely adjust the length of the extended sliding rod according to the size of the corner, thereby enabling sandblasting to remove rust from corners of different sizes.

[0011] Meanwhile, personnel can also release the limit on the rotating head by adjusting the component. The rotating head will rotate and drive the nozzle to rotate, thereby adjusting the angle of sandblasting. When the nozzle is adjusted to the appropriate angle, the adjusting component can limit the rotating head, ensuring that personnel can easily adjust the rotating head to multiple angles and ensuring that the rotating head can adapt to sandblasting work at different angles.

[0012] In the above technical solution, the limiting component further includes:

[0013] A circular groove is formed inside a sliding rod. A limiting block is slidably installed inside the circular groove. Several limiting holes are formed on one side of the sandblasting gun. One end of the limiting block passes through one side of the circular groove and extends into one of the limiting holes. A spring that is fixed to the inner wall of the circular groove is fixedly installed on the other end of the limiting block.

[0014] In this technical solution, when sandblasting is needed to remove rust from small corners, the operator can first press the limiting block. The movement of the limiting block will compress the spring and cause it to contract until one end of the limiting block moves out of one of the limiting holes. At this point, the limiting block can release the sliding rod, and the operator can pull the sliding rod out of the sliding groove. Simultaneously, the movement of the sliding rod will cause the connecting groove to slide on the connecting pipe. Under the sealing effect of the sealing ring, it can be ensured that there is no leakage in the connecting groove. Until the sliding rod is pulled out to a suitable length, under the action of the spring's rebound force, the spring will compress the limiting block and move it until one end of the limiting block is inserted into the corresponding limiting hole. At this point, the limiting block can limit the sliding rod, ensuring that the operator can easily adjust the length of the extended sliding rod according to the size of the corner, thus enabling sandblasting to remove rust from corners of different sizes.

[0015] In the above technical solution, one end of the limiting block is inserted into the limiting hole, and the plurality of limiting holes are linearly and equally spaced.

[0016] In this technical solution, it is ensured that one end of the limiting block can be inserted into the limiting hole, thus ensuring a wider range of the sliding rod's extension length.

[0017] In the above technical solution, the adjustment component further includes:

[0018] A cavity is formed inside a rotating head. An arc-shaped groove is formed inside the rotating head and on the periphery of the cavity. An arc-shaped plate is slidably installed in the arc-shaped groove. A sealing gasket is fixedly installed on the inner wall of the arc-shaped plate. One end of the arc-shaped plate is fixed to one end of the sandblasting gun.

[0019] A bolt, the bolt being threaded onto the sandblasting gun and located on one side of the rotating head, with a rubber washer fixedly installed at one end of the bolt.

[0020] In this technical solution, personnel can also rotate the bolt. Under the action of the thread, the bolt can be unscrewed from the sliding rod. At this time, the rubber gasket on the bolt can release the limiting position of the rotating head. The rotating head can then rotate, which will cause the arc groove to rotate on the arc plate. At the same time, under the sealing effect of the sealing gasket, it can be ensured that there is no material leakage between the arc plate and the arc groove. The rotation of the rotating head will also cause the nozzle to rotate, thereby adjusting the angle of sandblasting. When the nozzle is adjusted to a suitable angle, the personnel can screw the bolt back onto the sliding rod and tighten it. The tightening of the bolt will cause the rubber gasket to be pressed against the rotating head. At this time, the rubber gasket will deform. Under the action of the friction of the rubber gasket, the rubber gasket can limit the rotation head, ensuring that personnel can easily adjust the rotating head at multiple angles and ensuring that the rotating head can adapt to sandblasting work at different angles.

[0021] In the above technical solution, the sealing gasket is in close contact with the inner wall of the arc groove, the arc plate is connected to the connecting groove and the cavity, and one side of the rubber gasket abuts against the rotating head.

[0022] In this technical solution, it is ensured that there will be no material leakage between the arc plate and the arc groove under the sealing effect of the sealing gasket, the structural stability of the arc plate, the connecting groove and the cavity is guaranteed, and the rubber gasket can limit and fix the rotating head.

[0023] In the above technical solution, further, the sandblasting machine and the sandblasting box are both fixedly installed on the top of the base, the sandblasting machine is located between the take-up roller and the sandblasting box, the discharge pipe of the sandblasting machine is fixed and connected to the other end of the sandblasting pipe, and the feed pipe of the sandblasting machine is connected to the inner cavity of the sandblasting box.

[0024] In this technical solution, the structural stability of the sandblasting machine and sandblasting box relative to the base is ensured.

[0025] Furthermore, the above technical solution also includes:

[0026] The handrail is fixedly installed on the top of the base and on one side of the sandblasting box. The top of the sandblasting box is provided with a feed pipe. The bottom of the base is fixedly installed with casters at its four corners.

[0027] In this technical solution, personnel can move the entire device using the handrails and four casters, ensuring that the entire device can be moved freely.

[0028] In the above technical solution, the sandblasting gun is further engaged with the placement frame, the connecting pipe is fixedly connected to the sandblasting gun, and the connecting pipe is slidably connected to the sliding rod.

[0029] In this technical solution, it is ensured that the sandblasting gun can be locked on the mounting bracket when not in use, ensuring the structural stability of the connecting pipe and the sandblasting gun, and ensuring that the connecting pipe can slide normally within the sliding rod.

[0030] In the above technical solution, the periphery of the sealing ring abuts against the inner wall of the connecting groove.

[0031] In this technical solution, the sealing performance of the sealing ring is ensured to prevent material leakage from the connecting groove.

[0032] The beneficial effects of this invention are:

[0033] 1. This sandblasting equipment for ship rust removal significantly improves the adaptability of the equipment to corners of different sizes through the setting of limiting components. With the cooperation of the limiting components, sliding rods, sliding grooves, connecting pipes, and connecting grooves, the equipment can adapt to corners of different sizes. Through the optimized sliding rod length adjustment structure, operators can quickly and accurately control the extension length of the sliding rod without the need for additional tools. It can flexibly adapt to various sizes of spaces from narrow gaps to deep corners, ensuring that rust deep in the corners can be completely removed, greatly improving the rust removal effect of ship corners and reducing the risk of rust.

[0034] 2. This sandblasting equipment for ship rust removal, through its adjustable components, enhances the precision and stability of operations through the coordinated operation of the adjustable components, rotating head, and nozzle. The nozzle can be freely adjusted within a wide angle range and is firmly fixed after adjustment, preventing angular deviation during operation. This allows operators to easily adjust the nozzle posture according to different angle requirements of the ship's corners, ensuring that the sandblasting direction is accurately aimed at the rust removal area. This not only reduces the difficulty of operation but also improves the efficiency of sandblasting operations. At the same time, the stable fixed angle ensures the consistency of sandblasting force and range, further improving the quality of rust removal. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the regional structure of the sandblasting gun in this invention;

[0037] Figure 3 This is a detailed internal structural diagram of the sandblasting gun in this invention;

[0038] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0039] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B;

[0040] Figure 6 This is a detailed internal structural diagram of the rotating head in this invention;

[0041] Figure 7 This is a schematic cross-sectional view of the sliding rod in this invention;

[0042] Figure 8 This is a schematic diagram of the regional structure of the bolt in this invention.

[0043] The markings in the diagram are as follows:

[0044] 1. Base; 2. Sandblasting box; 3. Sandblasting machine; 4. Rotating frame; 5. Rewinding roller; 6. Handrail; 7. Feed pipe; 8. Sandblasting pipe; 9. Placement rack; 10. Sandblasting gun; 11. Handle; 12. Sliding groove; 13. Sliding rod; 14. Circular groove; 15. Limiting block; 16. Spring; 17. Limiting hole; 18. Connecting groove; 19. Connecting pipe; 20. Sealing ring; 21. Rotating head; 22. Arc groove; 23. Arc plate; 24. Sealing gasket; 25. Cavity; 26. Nozzle; 27. Bolt; 28. Rubber gasket; 29. ​​Caster wheel. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0046] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0047] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0048] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0049] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0050] Example 1:

[0051] Please see Figure 1 - Figure 8 As shown, this embodiment provides a sandblasting device for rust removal from ships, including a sandblasting box 2 and a sandblasting machine 3, and further comprising:

[0052] A base 1 is provided, and a rotating frame 4 is fixedly installed on the top of the base 1. A take-up roller 5 is rotatably installed inside the rotating frame 4. A sandblasting tube 8 is wound on the take-up roller 5. A placement frame 9 is fixedly installed on the top of the base 1 and on one side of the take-up roller 5. A sandblasting gun 10 is provided on the placement frame 9. A handle 11 is fixedly installed on the bottom of the sandblasting gun 10. A sliding groove 12 is provided inside the sandblasting gun 10. A sliding rod 13 is slidably installed inside the sliding groove 12. One end of the sliding rod 13 extends through one side of the sliding groove 12 to the outside and is rotatably installed with a rotating head 21. A nozzle 26 is fixedly installed on the periphery of the rotating head 21.

[0053] A limiting component is located inside the sliding rod 13 and is used to limit the sliding rod 13.

[0054] A connecting groove 18 is formed inside the sliding rod 13. A connecting pipe 19 is slidably installed inside the connecting groove 18. One end of the connecting pipe 19 passes through one side of the connecting groove 18 and the sandblasting gun 10 and is fixed to one end of the sandblasting pipe 8. A sealing ring 20 is fixedly installed on the periphery of the connecting pipe 19.

[0055] An adjustment component is located inside the rotating head 21 and is used to adjust the rotation angle of the rotating head 21.

[0056] In use, when sandblasting is needed to remove rust from small corners, the operator can release the sliding rod 13 by using the limiting component. The operator can then pull the sliding rod 13 out of the sliding groove 12. At the same time, the movement of the sliding rod 13 will cause the connecting groove 18 to slide on the connecting pipe 19. Under the sealing effect of the sealing ring 20, it can be ensured that there is no leakage in the connecting groove 18. Until the sliding rod 13 is pulled out to a suitable length, the limiting component can limit the sliding rod 13, ensuring that the operator can easily adjust the length of the extended sliding rod 13 according to the size of the corner, so that sandblasting can be performed on corners of different sizes.

[0057] Meanwhile, personnel can also release the limit on the rotating head 21 by adjusting the component. The rotating head 21 can rotate, which will drive the nozzle 26 to rotate, thereby adjusting the angle of sandblasting by the nozzle 26. When the nozzle 26 is adjusted to a suitable angle, the adjusting component can limit the rotating head 21, ensuring that personnel can easily adjust the rotating head 21 at multiple angles and that the rotating head 21 can adapt to sandblasting work at different angles.

[0058] Example 2:

[0059] This embodiment provides a sandblasting device for rust removal from ships. In addition to the technical solutions described in the above embodiments, it also has the following technical features, including a limiting component:

[0060] A circular groove 14 is formed inside the sliding rod 13. A limiting block 15 is slidably installed inside the circular groove 14. A number of limiting holes 17 are formed on one side of the sandblasting gun 10. One end of the limiting block 15 passes through one side of the circular groove 14 and extends into one of the limiting holes 17. A spring 16 is fixedly installed at the other end of the limiting block 15 and is fixed to the inner wall of the circular groove 14.

[0061] When sandblasting is needed to remove rust from smaller corners, personnel can first press the limiting block 15. The movement of the limiting block 15 will compress the spring 16, causing it to contract until one end of the limiting block 15 moves out of one of the limiting holes 17. At this point, the limiting block 15 can release the sliding rod 13 from its position, allowing personnel to pull the sliding rod 13 out of the sliding groove 12. Simultaneously, the movement of the sliding rod 13 will cause the connecting groove 18 to slide on the connecting pipe 19. Under the sealing effect of the sealing ring 20, this ensures... There will be no material leakage in the connecting groove 18 until the sliding rod 13 is pulled out to the appropriate length. At this time, under the action of the spring 16 rebound force, the spring 16 will squeeze the limiting block 15 to move until one end of the limiting block 15 is inserted into the corresponding limiting hole 17. At this time, the limiting block 15 can limit the sliding rod 13, ensuring that it is easy for personnel to adjust the extension length of the sliding rod 13. This ensures that personnel can adjust the extension length of the sliding rod 13 at will according to the size of the corner, so that sandblasting and rust removal can be performed on corners of different sizes.

[0062] Example 3:

[0063] This embodiment provides a sandblasting device for rust removal from ships. In addition to the technical solution of the above embodiment, it also has the following technical features: one end of the limiting block 15 is inserted into the limiting hole 17, and a plurality of limiting holes 17 are linearly and equally spaced.

[0064] In this way, it is ensured that one end of the limiting block 15 can be inserted into the limiting hole 17, so that the sliding rod 13 can extend to a wider range.

[0065] Example 4:

[0066] This embodiment provides a sandblasting device for rust removal from ships. In addition to the technical solutions described in the above embodiments, it also has the following technical features, including an adjustment component:

[0067] Cavity 25 is formed inside rotating head 21. An arc-shaped groove 22 is formed inside rotating head 21 and on the periphery of cavity 25. An arc-shaped plate 23 is slidably installed in arc-shaped groove 22. A sealing gasket 24 is fixedly installed on the inner wall of arc-shaped plate 23. One end of arc-shaped plate 23 is fixed to one end of sandblasting gun 10.

[0068] Bolt 27 is threaded onto the sandblasting gun 10 and located on one side of the rotating head 21. One end of bolt 27 is fixedly fitted with a rubber gasket 28.

[0069] The operator can also rotate bolt 27, which, under the action of the thread, can be unscrewed from sliding rod 13. At this time, the rubber gasket 28 on bolt 27 can release the limiting position of rotating head 21, allowing the operator to rotate rotating head 21. The rotation of rotating head 21 will cause arc groove 22 to rotate on arc plate 23. At the same time, under the sealing effect of sealing gasket 24, it can be ensured that there is no leakage between arc plate 23 and arc groove 22. The rotation of rotating head 21 will also cause nozzle 26 to rotate, thereby... Adjust the angle of the nozzle 26 for sandblasting. When the nozzle 26 is adjusted to a suitable angle, the operator screws the bolt 27 back onto the sliding rod 13 and tightens the bolt 27. Tightening the bolt 27 will cause the rubber pad 28 to be pressed against the rotating head 21. At this time, the rubber pad 28 will deform. Under the action of the friction of the rubber pad 28, the rubber pad 28 can limit the rotation head 21, ensuring that the operator can easily adjust the rotation head 21 at multiple angles and that the rotation head 21 can adapt to sandblasting work at different angles.

[0070] Example 5:

[0071] This embodiment provides a sandblasting device for rust removal from ships. In addition to the technical solutions of the above embodiments, it also has the following technical features: the sealing gasket 24 is in close contact with the inner wall of the arc groove 22, the arc plate 23 is connected to the connecting groove 18 and the cavity 25, and one side of the rubber gasket 28 abuts against the rotating head 21.

[0072] Specifically, the sealing gasket 24 ensures that there is no leakage between the arc plate 23 and the arc groove 22, ensures the structural stability of the arc plate 23, the connecting groove 18, and the cavity 25, and ensures that the rubber gasket 28 can limit and fix the rotating head 21.

[0073] Example 6:

[0074] This embodiment provides a sandblasting device for rust removal from ships. In addition to the technical solutions of the above embodiments, it also has the following technical features: the sandblasting machine 3 and the sandblasting box 2 are both fixedly installed on the top of the base 1. The sandblasting machine 3 is located between the winding roller 5 and the sandblasting box 2. The discharge pipe of the sandblasting machine 3 is fixed and connected to the other end of the sandblasting pipe 8. The feed pipe of the sandblasting machine 3 is connected to the inner cavity of the sandblasting box 2.

[0075] Among these measures, it is essential to ensure the structural stability of the sandblasting machine 3, the sandblasting box 2, and the base 1.

[0076] Example 7:

[0077] This embodiment provides a sandblasting device for rust removal from ships. In addition to the technical solutions described in the above embodiments, it also has the following technical features:

[0078] Handrail 6 is fixedly installed on the top of base 1 and on one side of sandblasting box 2. The top of sandblasting box 2 is provided with feed pipe 7. Universal wheels 29 are fixedly installed at the bottom of base 1 and at its four corners.

[0079] Personnel can move the entire device using the handrail 6 and four casters 29, ensuring that the entire device can be moved freely.

[0080] Example 8:

[0081] This embodiment provides a sandblasting device for rust removal from ships. In addition to the technical solutions of the above embodiments, it also has the following technical features: the sandblasting gun 10 is snapped into place with the placement frame 9, the connecting pipe 19 is fixedly connected to the sandblasting gun 10, and the connecting pipe 19 is slidably connected to the sliding rod 13.

[0082] Specifically, it ensures that the sandblasting gun 10 can be locked on the placement frame 9 when not in use, ensures the structural stability of the connecting pipe 19 and the sandblasting gun 10, and ensures that the connecting pipe 19 can slide normally within the sliding rod 13.

[0083] Example 9:

[0084] This embodiment provides a sandblasting device for rust removal from ships. In addition to the technical solutions of the above embodiments, it also has the following technical features: the periphery of the sealing ring 20 abuts against the inner wall of the connecting groove 18.

[0085] This ensures the sealing performance of the sealing ring 20 and prevents material leakage from the connecting groove 18.

[0086] Working principle: In use, when sandblasting is needed to remove rust from small corners, the operator can first press the limiting block 15. The movement of the limiting block 15 will compress the spring 16, causing it to contract until one end of the limiting block 15 moves out of one of the limiting holes 17. At this point, the limiting block 15 can release the sliding rod 13, allowing the operator to pull the sliding rod 13 out of the sliding groove 12. Simultaneously, the movement of the sliding rod 13 will cause the connecting groove 18 to slide on the connecting pipe 19. Under the sealing effect of the sealing ring 20, it can... This ensures that there will be no leakage in the connecting groove 18 until the sliding rod 13 is pulled out to the appropriate length. At this time, under the action of the spring 16's rebound force, the spring 16 will squeeze the limiting block 15 to move until one end of the limiting block 15 is inserted into the corresponding limiting hole 17. At this time, the limiting block 15 can limit the sliding rod 13, ensuring that it is easy for personnel to adjust the length of the extended sliding rod 13. This allows personnel to adjust the length of the extended sliding rod 13 according to the size of the corner, thereby enabling sandblasting and rust removal of corners of different sizes.

[0087] Simultaneously, personnel can rotate bolt 27, which, under the action of the thread, can be unscrewed from sliding rod 13. At this time, the rubber gasket 28 on bolt 27 can release the limiting position of rotating head 21, allowing personnel to rotate rotating head 21. The rotation of rotating head 21 will cause arc groove 22 to rotate on arc plate 23. At the same time, under the sealing action of sealing gasket 24, it can be ensured that there is no leakage between arc plate 23 and arc groove 22. The rotation of rotating head 21 will cause nozzle 26 to rotate, thereby... Adjust the angle of the nozzle 26 for sandblasting. When the nozzle 26 is adjusted to the appropriate angle, the operator screws the bolt 27 back onto the sliding rod 13 and tightens the bolt 27. Tightening the bolt 27 will cause the rubber pad 28 to be pressed against the rotating head 21. At this time, the rubber pad 28 will deform. Under the action of the friction of the rubber pad 28, the rubber pad 28 can limit the rotating head 21, ensuring that the operator can easily adjust the rotating head 21 at multiple angles and that the rotating head 21 can adapt to sandblasting work at different angles.

[0088] During sandblasting, personnel can start the sandblasting machine 3, which can extract the raw material from the sandblasting box 2 and transport it to the sandblasting pipe 8. The raw material in the sandblasting pipe 8 will enter the connecting pipe 19, and the raw material in the connecting pipe 19 will enter the cavity 25 through the connecting groove 18 and the arc plate 23. Finally, the raw material in the cavity 25 will be sprayed out through the nozzle 26 to perform the sandblasting operation. At the same time, personnel can move the entire device through the handrail 6 and the four casters 29 to ensure that the entire device can be moved at will.

[0089] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A sandblasting device for rust removal from ships, comprising a sandblasting box (2) and a sandblasting machine (3), characterized in that, Also includes: A base (1) is provided with a rotating frame (4) fixedly installed on the top of the base (1). A take-up roller (5) is rotatably installed inside the rotating frame (4). A sandblasting pipe (8) is wound on the take-up roller (5). A placement frame (9) is fixedly installed on the top of the base (1) and on one side of the take-up roller (5). A sandblasting gun (10) is provided on the placement frame (9). A handle (11) is fixedly installed on the bottom of the sandblasting gun (10). A sliding groove (12) is provided inside the sandblasting gun (10). A sliding rod (13) is slidably installed inside the sliding groove (12). One end of the sliding rod (13) extends through one side of the sliding groove (12) to the outside and is rotatably installed with a rotating head (21). A nozzle (26) is fixedly installed on the periphery of the rotating head (21). A limiting component is located inside the sliding rod (13) and is used to limit the sliding rod (13); A connecting groove (18) is formed inside a sliding rod (13). A connecting pipe (19) is slidably installed inside the connecting groove (18). One end of the connecting pipe (19) passes through one side of the connecting groove (18) and the sandblasting gun (10) and is fixed to one end of the sandblasting pipe (8). A sealing ring (20) is fixedly installed on the periphery of the connecting pipe (19). An adjustment component is located inside the rotating head (21) and is used to adjust the rotation angle of the rotating head (21); The limiting component includes: A circular groove (14) is formed inside a sliding rod (13). A limiting block (15) is slidably installed inside the circular groove (14). A plurality of limiting holes (17) are formed on one side of the sandblasting gun (10). One end of the limiting block (15) passes through one side of the circular groove (14) and extends into one of the limiting holes (17). The other end of the limiting block (15) is fixedly installed with a spring (16) that is fixed to the inner wall of the circular groove (14). One end of the limiting block (15) is inserted into the limiting hole (17), and the limiting holes (17) are linearly and equally spaced. The adjustment component includes: A cavity (25) is formed inside a rotating head (21). An arc-shaped groove (22) is formed inside the rotating head (21) and on the periphery of the cavity (25). An arc-shaped plate (23) is slidably installed inside the arc-shaped groove (22). A sealing gasket (24) is fixedly installed on the inner wall of the arc-shaped plate (23). One end of the arc-shaped plate (23) is fixed to one end of the sandblasting gun (10). Bolt (27), the bolt (27) is threaded on the sandblasting gun (10) and located on one side of the rotating head (21), and a rubber gasket (28) is fixedly installed at one end of the bolt (27). The sealing gasket (24) is in close contact with the inner wall of the arc groove (22), the arc plate (23) is connected to the connecting groove (18) and the cavity (25), and one side of the rubber gasket (28) abuts against the rotating head (21). The sandblasting machine (3) and the sandblasting box (2) are both fixedly installed on the top of the base (1). The sandblasting machine (3) is located between the winding roller (5) and the sandblasting box (2). The discharge pipe of the sandblasting machine (3) is fixed and connected to the other end of the sandblasting pipe (8). The feed pipe of the sandblasting machine (3) is connected to the inner cavity of the sandblasting box (2).

2. The sandblasting equipment for rust removal from ships according to claim 1, characterized in that, Also includes: Handrail (6), the handrail (6) is fixedly installed on the top of the base (1) and on one side of the sandblasting box (2). The top of the sandblasting box (2) is provided with a feed pipe (7). The bottom of the base (1) and at its four corners are fixedly installed with casters (29).

3. The sandblasting equipment for rust removal from ships according to claim 1, characterized in that, The sandblasting gun (10) is engaged with the placement frame (9), the connecting pipe (19) is fixedly connected to the sandblasting gun (10), and the connecting pipe (19) is slidably connected to the sliding rod (13).

4. A sandblasting device for rust removal from ships according to claim 1, characterized in that, The periphery of the sealing ring (20) abuts against the inner wall of the connecting groove (18).

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