A rust cleaning and flushing device for steel structures
By using a high-pressure water pump and sand-mixed spraying method, the problem of difficult-to-treat rust on steel structure surfaces was solved, achieving a fast and efficient rust removal effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUOYANG TECH GRP CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-21
AI Technical Summary
Existing technologies are insufficient for efficiently removing rust from steel structure surfaces, especially in humid and corrosive environments where the rust is thick and requires high-level treatment, affecting structural strength and safety.
A high-pressure water pump pressurizes water and delivers it to the spray gun. A sand inlet is connected to the spray gun near the nozzle. Sand in the sand box is drawn into the spray gun by the negative pressure of the water flow and mixed with the high-pressure water before being sprayed out, achieving the dual impact of water pressure and sand to remove rust.
It achieves rapid and high-quality removal of rust from steel structure surfaces, significantly improving rust removal effect and efficiency.
Smart Images

Figure CN224526899U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rust removal devices, and in particular to a rust removal and flushing device for steel structures. Background Technology
[0002] Corrosion of steel structures is a common problem in engineering, especially in humid and corrosive environments. Corrosion not only affects aesthetics but also reduces structural strength and can even pose safety hazards. Steel structure corrosion is generally characterized by deep rust layers and demanding treatment requirements; therefore, how to achieve high-quality and efficient corrosion treatment of steel structures has become a technical problem that needs to be solved in this field. Utility Model Content
[0003] This invention addresses the shortcomings of existing technologies by providing a device capable of quickly and effectively removing rust from steel structure surfaces.
[0004] This utility model provides a rust removal and flushing device for steel structures, including a spray gun, a water tank, a sand box, and a high-pressure water pump; the front end of the spray gun is connected to a nozzle, the rear end of the spray gun has a water inlet, the water inlet is connected to the water tank through the high-pressure water pump, and the spray gun has a sand inlet on the side near the nozzle, the sand inlet is connected to the sand box.
[0005] Furthermore, a rear handle is connected to the rear of the spray gun, and a front handle is movably connected to the spray gun.
[0006] Furthermore, the front handle includes a handle, a collar, a flange, and a bolt. The handle is connected to the collar, the inner diameter of the collar matches the outer diameter of the spray gun, and the collar has an opening on one side. The flange is connected to the opening, and the flange is loosely or loosely connected to the spray gun by the bolt. Furthermore, the water tank has a water outlet on its lower side.
[0007] Furthermore, the outlet is connected to the high-pressure water pump via a water pipe, and the high-pressure water pump is connected to the inlet via the water pipe.
[0008] Furthermore, the lower part of the sand box has an arc-shaped bottom, and the bottom point of the arc-shaped bottom is connected to a sand outlet.
[0009] Furthermore, the sand outlet is connected to the sand inlet via a sand pipe.
[0010] Furthermore, an on / off valve is provided on the sand inlet.
[0011] Furthermore, the nozzle includes a connector and a spray nozzle. The shape of the connector matches the shape of the spray gun. The connector is connected to the outlet of the spray gun. The spray nozzle is elongated.
[0012] Furthermore, the nozzle is made of alumina ceramic or silicon carbide.
[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a high-pressure water pump to pressurize the water in the water tank and deliver it to the spray gun. At the same time, a sand inlet is connected to the spray gun near the nozzle. The sand in the sand box is sucked into the spray gun due to the negative pressure formed by the water flow and mixed with the high-pressure water and sprayed out together. Due to the dual impact of water pressure and sand, the rust on the surface of the steel structure can be removed quickly and effectively. The addition of sand also greatly improves the rust removal effect and the rust removal quality is significantly improved, realizing the function of quickly and effectively removing rust from the surface of the steel structure. Attached Figure Description
[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of a rust removal and flushing device for steel structures according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the front handlebar structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of a nozzle according to an embodiment of the present invention.
[0016] The attached diagram is labeled as follows: 1: Spray gun; 11: Front handle; 111: Handle; 112: Collar; 113: Flange; 114: Bolt; 12: Rear handle; 13: Nozzle; 131: Connection port; 132: Water nozzle; 14: Water inlet; 15: Sand inlet; 16: Water outlet; 2: Water tank; 21: Water outlet; 3: Sand box; 31: Rounded bottom; 32: Sand outlet; 4: High-pressure water pump; 5: Water pipe; 6: Sand pipe; 7: On / off valve. Detailed Implementation
[0017] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.
[0019] Furthermore, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" 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; 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 utility model based on the specific circumstances.
[0020] like Figure 1As shown in the figure, this utility model embodiment provides a rust removal and flushing device for steel structures, including: a spray gun 1, a water tank 2, a sand box 3, and a high-pressure water pump 4; the front end of the spray gun 1 is connected to a nozzle 13, and the rear end of the spray gun 1 has a water inlet 14, which is connected to the water tank 2 through the high-pressure water pump 4; the spray gun 1 has a sand inlet 15 on the side near the nozzle 13, which is connected to the sand box 3. The sand in the sand box 3 can be fine river sand, or steel grit, glass grit, plastic grit, etc., as needed. This invention utilizes a high-pressure water pump 4 to pressurize the water in the water tank 2 and deliver it to the spray gun 1. Simultaneously, a sand inlet 15 is connected to the spray gun 1 near the nozzle 13. Due to the negative pressure created by the water flow, the sand in the sand box 3 is drawn into the spray gun 1 and mixed with the high-pressure water before being sprayed out. Due to the dual impact of water pressure and sand, rust on the surface of the steel structure can be removed quickly and effectively. The addition of sand also greatly enhances the rust removal effect, significantly improving the rust removal quality and achieving the function of quickly and effectively removing rust from the surface of the steel structure.
[0021] To facilitate gripping during rust removal operations, a rear handle 12 is connected to the rear of the spray gun 1, and a front handle 11 is movably connected to the spray gun 1. The movable front handle 11 allows adjustment of the distance between the front handle 11 and the rear handle 12 according to different operators' habits, achieving the most comfortable grip position. In one embodiment, such as... Figure 2 As shown, the front handle 11 includes a handle 111, a collar 112, a flange 113, and a bolt 114. The handle 111 is connected to the collar 112, and the inner diameter of the collar 112 matches the outer diameter of the spray gun 1. The collar 112 has an opening on one side, and the flange 113 is connected to the opening. The flange 113 is loosely or tightly connected to the spray gun 1 by the bolt 114. In this embodiment, the position of the front handle 11 on the spray gun 1 is adjustable and fixed through the cooperation of the collar 112, the flange 113, and the bolt 114.
[0022] In one aspect of this utility model embodiment, the water tank 2 has a water outlet 21 on its lower side. The water outlet 21 is connected to a high-pressure water pump 4 via a water pipe 5, and the high-pressure water pump 4 is connected to a water inlet 14 via a water pipe 5. Preferably, the sand box 3 has a rounded bottom 31 at its lower part, and a sand outlet 31 is connected to the bottom point of the rounded bottom 31. The sand outlet 31 is connected to a sand inlet 15 via a sand pipe 6. The rounded bottom 31 serves to guide the sand flow and prevent sand accumulation in the dead corners at the bottom of the sand box 3. More preferably, a shut-off valve 7 is provided on the sand inlet 15. The shut-off valve 7 can control the opening and closing of the sand inlet 15. After rust removal is completed, the sand inlet 15 can be closed by the shut-off valve 7, at which point the water sprayed by the spray gun 1 can be used to rinse the steel structure.
[0023] like Figure 3As shown, the nozzle 13 includes a connector 131 and a spray nozzle 132. The shape of the connector 131 matches the shape of the spray gun 1, and the connector 131 is connected to the water outlet 16 of the spray gun 1. The spray nozzle 132 is elongated. The spray nozzle 132 guides and shapes the sprayed water, making the water sprayed from the nozzle 13 more uniform and improving rust removal efficiency. To ensure sufficient strength, the nozzle 13 can be made of high-strength, wear-resistant materials such as alumina ceramic or silicon carbide.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A rust removal and flushing device for steel structures, characterized in that, include: Spray gun (1), water tank (2), sand box (3) and high-pressure water pump (4); The front end of the spray gun (1) is connected to a nozzle (13), and the rear end of the spray gun (1) has a water inlet (14). The water inlet (14) is connected to the water tank (2) through the high-pressure water pump (4). The spray gun (1) has a sand inlet (15) on the side near the nozzle (13), and the sand inlet (15) is connected to the sand box (3).
2. The rust removal and flushing device for steel structures according to claim 1, characterized in that, The rear of the spray gun (1) is connected to a rear handle (12), and the front handle (11) is movably connected to the spray gun (1).
3. The rust removal and flushing device for steel structures according to claim 2, characterized in that, The front handle (11) includes a handle (111), a collar (112), a flange (113), and a bolt (114). The handle (111) is connected to the collar (112). The inner diameter of the collar (112) matches the outer diameter of the spray gun (1). The collar (112) has an opening on one side, and the flange (113) is connected to the opening. The flange (113) is loosely or loosely connected to the spray gun (1) by the bolt (114).
4. The rust removal and flushing device for steel structures according to claim 1, characterized in that, The water tank (2) has an outlet (21) on its lower side.
5. The rust removal and flushing device for steel structures according to claim 4, characterized in that, The outlet (21) is connected to the high-pressure water pump (4) through the water pipe (5), and the high-pressure water pump (4) is connected to the inlet (14) through the water pipe (5).
6. The rust removal and flushing device for steel structures according to claim 1, characterized in that, The lower part of the sand box (3) has an arc bottom (31), and the bottom point of the arc bottom (31) is connected to the sand outlet (32).
7. The rust removal and flushing device for steel structures according to claim 6, characterized in that, The sand outlet (32) is connected to the sand inlet (15) through the sand pipe (6).
8. The rust removal and flushing device for steel structures according to claim 7, characterized in that, An on / off valve (7) is provided on the sand inlet (15).
9. The rust removal and flushing device for steel structures according to any one of claims 1 to 8, characterized in that, The nozzle (13) includes a connector (131) and a spray nozzle (132). The shape of the connector (131) matches the shape of the spray gun (1). The connector (131) is connected to the outlet (16) of the spray gun (1). The spray nozzle (132) is elongated.
10. The rust removal and flushing device for steel structures according to claim 9, characterized in that, The nozzle (13) is made of alumina ceramic or silicon carbide.