Rust removal device for ship repair

By incorporating labor-saving blocks and anti-slip zones into the rust removal device for ship repair, and combining this with the design of copper products, the problems of high labor intensity and low efficiency in handheld rust removal with high-pressure water guns have been solved, achieving labor-saving operation and efficient rust removal.

CN223834302UActive Publication Date: 2026-01-27GUANGZHOU XINYI SHIP REPAIR CO LTD
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Patent Information

Application Number
CN202520272416.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-01-27
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Existing high-pressure water jet handheld rust removal devices require workers to hold the handle for extended periods, resulting in high labor intensity and low water-jet sandblasting rust removal efficiency.

Method used

A rust removal device for ship repair was designed, which adopts the design of a labor-saving block and an anti-slip zone. The water output is adjusted by a labor-saving ring, and combined with a copper pressure rod and a sandblasting interface, it achieves labor-saving operation and anti-slip effect.

Benefits of technology

It reduced the labor intensity of workers, improved rust removal efficiency, and extended the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a derusting device for ship repair, which comprises a gun body, the rear end of the gun body is a handheld end, the bottom of the handheld end is externally connected with an output end of a high-pressure water pump through a nut and a hose, a handle is arranged on the inner side of the gun body, the handle is connected with a valve in the gun body through a firing pin, and a spring is arranged at the connecting end of the handle and the gun body. A labor-saving block protruding forwards is arranged at the bottom of the handle, different gears are arranged on the labor-saving block, a labor-saving ring matched with the labor-saving block is hinged to the bottom of the gun body, anti-skid areas are arranged on the two sides of the handheld end, a pressure gathering rod is arranged at the front end of the gun body, a spray head is arranged at the front end of the pressure gathering rod, and a sand blasting connector is arranged at the rear end of the spray head. The sand blasting connector is externally connected with a fine sand barrel through a hose and communicated with the pressure gathering rod. According to the rust removal device, the labor-saving block is arranged on the handle, different gears are arranged on the labor-saving block to correspond to different water yield, a worker only needs to manually debug the proper water yield in advance when using the rust removal device, and much strength can be saved for the worker.
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Description

Technical Field

[0001] This utility model relates to the field of ship repair, and in particular to a rust removal device for ship repair. Background Technology

[0002] After a period of operation or navigation, a significant layer of rust will gradually form on the surface of the hull plating or structure of a ship in the marine environment. If not treated promptly, this can pose a threat to the structural strength and navigational safety of the vessel. Therefore, ships need to be taken to a shipyard regularly for rust removal and repainting. Ordinary high-pressure water guns are not very effective against excessive rust buildup. Water blasting is typically used for rust removal, but high-pressure water guns are usually handheld, requiring workers to hold the handle and control the water flow for extended periods, which is not easy for them.

[0003] Therefore, it is necessary to design a labor-saving rust removal device for ship repair. Utility Model Content

[0004] To address the technical deficiencies in the background art, this utility model proposes a rust removal device for ship repair, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0005] A rust removal device for ship repair includes a gun body, a handheld end at the rear end of the gun body, a high-pressure water pump output terminal connected to the bottom of the handheld end via a nut and a hose, a handle on the inner side of the gun body, the handle connected to a valve inside the gun body via a firing pin, a spring at the connection end between the handle and the gun body, a forward-protruding force-saving block at the bottom of the handle with different stops, a force-saving ring hinged to the bottom of the gun body to cooperate with the force-saving block, anti-slip zones on both sides of the handheld end, a pressure-gathering rod at the front end of the gun body, a nozzle at the front end of the pressure-gathering rod, a sandblasting interface at the rear end of the nozzle, a fine sand bucket connected to the pressure-gathering rod via a hose.

[0006] Furthermore, the inner side of the effort-saving block is provided with several inwardly recessed grooves, and the front end of the effort-saving ring is engaged in the grooves.

[0007] Furthermore, a knob is provided at the top of the handheld end, and the knob is connected to a valve inside the gun body.

[0008] Furthermore, both the pressure bar and the sandblasting interface are made of copper.

[0009] Furthermore, the sandblasting interface extends to one side of the pressure bar and is L-shaped.

[0010] Compared with the prior art, the rust removal device for ship repair provided by this utility model has the following beneficial effects:

[0011] This utility model discloses a rust removal device for ship repair. The handle is equipped with a labor-saving block with different settings corresponding to different water outputs. The operator only needs to manually adjust the appropriate water output beforehand and then engage the labor-saving ring in the corresponding groove on the labor-saving block. This eliminates the need to exert force on the handle for a long time, saving the operator a lot of effort. The gun body is also equipped with an anti-slip zone to prevent the operator's hand from slipping. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a rust removal device for ship repair according to the present invention.

[0013] Figure 2 This is a schematic diagram illustrating the use of a rust removal device for ship repair in this utility model.

[0014] The components are: 1. Gun body, 2. Handheld end, 3. Handle, 4. Effort-saving block, 5. Effort-saving ring, 6. Anti-slip zone, 7. Pressure-gathering rod, 8. Nozzle, 9. Sandblasting interface, 10. Groove, 11. Knob. Detailed Implementation

[0015] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "middle," and "inner," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

[0016] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0017] See Figure 1-2 A rust removal device for ship repair includes a gun body 1. The rear end of the gun body 1 is a handheld end 2, which the user holds during use. The bottom of the handheld end 2 is connected to the output end of a high-pressure water pump via a nut and a hose. The bottom of the handheld end 2 is the input end, compatible with most high-pressure water pumps. The high-pressure water pump is a commonly purchased high-pressure water pump. A handle 3 is provided inside the gun body 1. The handle 3 is connected to a valve inside the gun body 1 via a firing pin, allowing control of the water output of the rust removal device. A spring is provided at the connection point between the handle 3 and the gun body 1, providing support for the water flow. The handle 3 is returned to center. The bottom of the handle 3 is provided with a forward-protruding effort-saving block 4. The effort-saving block 4 is provided with different gear positions. The bottom of the gun body 1 is hinged with an effort-saving ring 5 that cooperates with the effort-saving block 4. Different water output can be adjusted by the cooperation of the effort-saving ring 5 and the effort-saving block 4. Both sides of the handheld end 2 are provided with anti-slip areas 6. The anti-slip areas 6 can prevent the operator's hand from slipping due to moisture. The front end of the gun body 1 is a pressure-gathering rod 7. The front end of the pressure-gathering rod 7 is a nozzle 8. The rear end of the nozzle 8 is provided with a sandblasting interface 9. The sandblasting interface 9 is connected to a fine sand bucket through a hose and is connected to the pressure-gathering rod 7.

[0018] In one embodiment of this utility model, the inner side of the labor-saving block 4 is provided with a plurality of inwardly recessed grooves 10, and the front end of the labor-saving ring 5 is engaged in the grooves 10. By engaging in the grooves 10 at different positions, the labor-saving ring 5 can fix different water outputs, thereby replacing the grip strength of the worker and saving the worker effort, making it suitable for long-term rust removal work.

[0019] In one embodiment of this utility model, a knob 11 is provided on the top of the handheld end 2, and the knob 11 is connected to a valve inside the gun body 1. The knob 11 can adjust the water pressure sprayed out.

[0020] In one embodiment of this invention, both the pressure bar 7 and the sandblasting interface 9 are made of copper. Copper pressure bars 7 and sandblasting interfaces 9 are more durable, extending the service life of the rust removal device.

[0021] In one embodiment of this invention, the sandblasting interface 9 extends towards one side of the pressure bar 7 and is L-shaped. The L-shaped sandblasting interface 9 allows for easy connection to an external fine sand bucket.

[0022] This utility model discloses a rust removal device for ship repair. It is equipped with a labor-saving block 4 on the handle 3. The labor-saving block 4 is equipped with different gears corresponding to different water outputs. When using it, the operator only needs to manually adjust the appropriate water output in advance, and then snap the labor-saving ring 5 into the corresponding groove 10 on the labor-saving block 4. This eliminates the need to exert force on the handle 3 for a long time, which can save the operator a lot of effort. The gun body 1 is also equipped with an anti-slip zone 6 to prevent the operator's hand from slipping.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rust removal device for ship repair, characterized in that, The gun includes a gun body (1), the rear end of which is a handheld end (2). The bottom of the handheld end (2) is connected to the output end of a high-pressure water pump via a nut and a hose. A handle (3) is provided on the inner side of the gun body (1). The handle (3) is connected to a valve inside the gun body (1) via a firing pin. A spring is provided at the connection end between the handle (3) and the gun body (1). A forward-protruding force-saving block (4) is provided at the bottom of the handle (3). Different gears are provided on the force-saving block (4). A force-saving ring (5) that cooperates with the force-saving block (4) is hinged at the bottom of the gun body (1). Anti-slip areas (6) are provided on both sides of the handheld end (2). The front end of the gun body (1) is a pressure-gathering rod (7). The front end of the pressure-gathering rod (7) is a nozzle (8). A sandblasting interface (9) is provided at the rear end of the nozzle (8). The sandblasting interface (9) is connected to a fine sand bucket via a hose and communicates with the pressure-gathering rod (7).

2. The rust removal device for ship repair according to claim 1, characterized in that, The inner side of the force-saving block (4) is provided with several inwardly recessed grooves (10), and the front end of the force-saving ring (5) is engaged in the grooves (10).

3. A rust removal device for ship repair according to claim 1, characterized in that, A knob (11) is provided on the top of the handheld end (2), and the knob (11) is connected to a valve inside the gun body (1).

4. A rust removal device for ship repair according to claim 1, characterized in that, Both the pressure bar (7) and the sandblasting interface (9) are made of copper.

5. A rust removal device for ship repair according to claim 1, characterized in that, The sandblasting port (9) extends to one side of the pressure bar (7) and is L-shaped.