A tank surface spraying device
By combining hydraulic telescopic cylinders, electric telescopic rods, and three-jaw clamps, the problem of uneven coating and paint waste in cylindrical steel tanks has been solved, enabling uniform coating of tanks of various sizes and paint recycling, thus reducing labor intensity and waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAONI CHEM MACHINERY
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, the coating of cylindrical steel tanks is uneven, paint is wasted, and the coating cannot be adapted to tanks of different sizes. The manual labor intensity is high, the coating device cannot effectively control the paint thickness, and the operation of the rotary motor is hindered.
The system employs a combination of hydraulic telescopic cylinders, electric telescopic rods, three-jaw clamps, sliding bases, and spray gun guides to achieve adjustable clamping and rotation of the tank. Combined with a paint recycling device and a telescopic strip brush, it enables uniform spraying and recycling of paint.
It enables uniform spraying of tanks of various sizes, reduces paint waste, improves spraying efficiency and equipment reliability, reduces manual labor intensity, and increases paint utilization.
Smart Images

Figure CN224271625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spray painting machinery technology, specifically to a tank surface spraying device. Background Technology
[0002] In existing technologies, cylindrical steel tanks are important containers for chemical processing, storage, and transportation of liquids. Painting these tanks can effectively prevent rust and corrosion. However, current manual hand-held spray gun techniques result in uneven coating thickness that is difficult to control, high labor intensity for workers, and paint accumulation and dripping, leading to paint waste.
[0003] A search revealed Chinese patent application number 201920936206.3, which discloses an automatic tank coating device, including a tank surface coating apparatus. The tank surface coating device described in the aforementioned document has the following shortcomings:
[0004] 1. When the can is placed vertically, the paint will still fall naturally due to gravity, resulting in uneven paint thickness on the surface.
[0005] 2. The natural dripping of paint will hinder the operation of the chassis rotary motor and also waste paint.
[0006] 3. This device cannot be adapted to oil tanks of other sizes. Utility Model Content
[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tank surface spraying device.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A can surface spraying device includes a fixed base, characterized in that a sliding base is provided on one side of the fixed base, and the inner wall of one side of the fixed base and one side of the sliding base form a matching inverted V-shaped receiving cavity; a spray gun guide rail is provided on the top of the fixed base; an electric slide and a spray gun are installed on the spray gun guide rail; the spray gun is installed at the bottom of the electric slide; hydraulic telescopic cylinders are provided on both sides of the fixed base, a rotary motor is installed at the top of one hydraulic telescopic cylinder, one end of a rotating shaft is installed at the output end of the rotary motor, and one end of the other rotating shaft is rotatably installed at the top of another hydraulic telescopic cylinder; one rotating shaft is driven by a rotary motor, and electric telescopic rods are provided on the inner sides of both ends of the rotating shaft, and a three-jaw clamp for fixing the can is connected through the telescopic rods.
[0010] As a further embodiment of this utility model: a receiving cavity is formed between the fixed base and the sliding base; an opening is made on one side of the fixed base, and a paint recovery hose is connected thereto; the other end of the paint recovery hose is connected to a paint recovery device, on which a paint filter plate for filtering paint impurities is installed; an electric pump is provided on the top of the paint recovery device, and an output hose is connected to the output port of the electric pump; the other end of the electric pump is connected to the interior of the paint recovery device; and a spray gun is connected to the other end of the output hose.
[0011] As a further improvement of this utility model: a guide rail is provided at the bottom of the fixed base, and the sliding base is connected to the top of the guide rail.
[0012] As a further improvement of this utility model, a sealing gasket is provided on the inner edge of the sliding base.
[0013] As a further improvement of this utility model: a retractable strip brush is installed on the fixed base. The retractable strip brush includes a fixed spring and a brush plate. One side of the fixed spring is installed on the fixed base, and the other end is connected to the brush plate.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. By incorporating hydraulic telescopic cylinders, electric telescopic rods, and three-jaw clamps, the clamps at both ends of the machine can be freely adjusted in height and clamping width. It is suitable for various sizes of oil tanks for different spraying operations.
[0016] 2. By setting up slide rails, the range of motion of the sliding base can be limited, making it easier to move and fix. This improves reliability.
[0017] 3. By setting a sealing gasket, the cavity formed by the sliding base and the fixed base has better sealing performance, thereby reducing paint loss and penetration corrosion of the base.
[0018] 4. By setting up a receiving cavity consisting of a sliding base and a fixed base, the recovered paint enters the paint recovery device through a paint recovery hose. By setting up a detachable paint filter plate, impurities are filtered out from the recovered paint. An electric pump reconnects the recovered paint to the spray gun, thereby enabling the excess paint to be recycled and greatly reducing waste.
[0019] 5. By incorporating a retractable brush strip, the paint sprayed by the spray gun can be evenly applied to the surface of the can using the spring deformation and the characteristics of the brush. Excess paint is brushed off and flows into the receiving cavity for recycling. Attached Figure Description
[0020] Figure 1 This is an isometric schematic diagram of a tank surface spraying device proposed in this utility model.
[0021] Figure 2 This is a front view schematic diagram of a tank surface spraying device proposed in this utility model.
[0022] Figure 3 This is a top view of a tank surface spraying device proposed in this utility model.
[0023] In the diagram: 1-Fixed base, 11-Sliding base, 12-Rotating shaft, 13-Hydraulic telescopic cylinder, 14-Rotary motor, 15-Electric telescopic rod, 16-Three-jaw clamp, 17-Slide rail, 18-Extendable strip brush, 2-Spray gun guide rail, 21-Spray gun, 22-Electric slide block, 3-Paint recovery device, 31-Electric pump, 32-Output hose, 33-Paint recovery hose, 34-Removable paint filter plate, 4-Tank body, 41-Sealing ring. Detailed Implementation
[0024] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.
[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0026] Example 1
[0027] A tank surface spraying device, such as Figure 1-3 As shown, it includes: a fixed base 1, a sliding base 11 is provided on one side of the fixed base 1, and the inner wall of one side of the fixed base 1 and one side of the sliding base 11 form an inverted V-shaped structure that is adapted to each other; a spray gun guide rail 2 is provided on the top of the fixed base 1; an electric slide 22 and a spray gun 21 are installed on the spray gun guide rail 2; the spray gun 21 is installed at the bottom of the electric slide 22.
[0028] Hydraulic telescopic cylinders 13 are provided on both sides of the fixed base 1. A rotary motor 14 is installed at the top of one hydraulic telescopic cylinder 13. One end of a rotating shaft 12 is installed at the output end of the rotary motor 14, and one end of the other rotating shaft 12 is rotatably installed at the top of the other hydraulic telescopic cylinder 13. One rotating shaft is driven by the rotary motor 14. Electric telescopic rods 15 are provided on the inner sides of both ends of the rotating shaft, which are connected to a three-jaw clamp 16 via hydraulic rods.
[0029] In this embodiment, specifically, by setting up a hydraulic telescopic cylinder 13, an electric telescopic rod 15, and a three-jaw clamp 16, the clamps at both ends of the machine can freely increase or decrease in height and clamping width. This allows for application to various sizes of oil tanks for different spraying operations. The electric telescopic rod 15 can be arranged and powered using structures such as electric slip rings; specific details can be found in existing technology and will not be elaborated here.
[0030] Specifically, the outer wall of the sliding base 11 is provided with four slide rails 17.
[0031] In this embodiment, the sliding rail 17 limits the range of motion of the sliding base 11, making it easier to move and fix, thus improving reliability.
[0032] Specifically, a sealing gasket 41 is provided on the inner edge of the sliding base 11.
[0033] In this embodiment: To ensure the sealing of the structure, a sealing gasket 41 is provided; this makes the cavity formed by the sliding base 11 and the fixed base 1 have better sealing performance, thereby reducing paint loss and penetration corrosion of the base.
[0034] A receiving cavity is formed between the fixed base 1 and the sliding base 11. An opening is made on one side of the fixed base 1, and a paint recovery hose 33 is connected to it. The other end of the paint recovery hose 33 is connected to a paint recovery device 3. A paint filter plate 34 for filtering paint impurities is installed on the paint recovery device 3. An electric pump 31 is provided on the top of the paint recovery device 3. An output hose 32 is connected to the output port of the electric pump. The other end of the electric pump 31 is connected to the inside of the paint recovery device 3. The spray gun 21 is connected to the other end of the output hose 32.
[0035] In this embodiment: by setting up a receiving cavity composed of a sliding base 11 and a fixed base 1, the recovered paint enters the paint recovery device through the paint recovery hose 33. By setting up a detachable paint filter plate 34, impurities are filtered out from the recovered paint. The electric pump 31 reconnects the recovered paint to the spray gun 21, thereby enabling the excess paint to be recycled and greatly reducing waste.
[0036] Specifically, a retractable strip brush 18 is installed in the fixed base 1.
[0037] In this embodiment: a retractable strip brush 18 is provided. Utilizing the characteristics of spring deformation and the brush, the paint sprayed by the spray gun 21 can be applied a second time to the surface of the can. Excess paint is brushed off and flows into the receiving cavity for recycling.
[0038] Working Principle: The user pulls out the sliding base 11 to facilitate loading the can 4. By adjusting the hydraulic telescopic cylinder 13, the electric telescopic rod 15, and the three-jaw clamp 16, the can 4 is fitted and clamped, suspending the bottom of the can above the inverted V-shaped receiving cavity formed by the fixed base 1 and the sliding base 11. The movable base 11 is then retracted to a suitable position. The motor 14 is started, causing the rotating shaft 12 to rotate the can 4 at a uniform speed. Simultaneously, the spray gun 21 and the electric slide 22 are started. The electric slide moves the spray gun on the spray gun guide rail 2, and the user can remotely control the movement of the slide. The hydraulic telescopic cylinder 13 is adjusted to a suitable position so that the brush contacts the surface of the can, allowing the paint to be evenly distributed. Excess paint falls into the receiving cavity and enters the paint recovery device 3 through the recovery hose 33. The paint filter plate 34 filters out impurities in the liquid. The recovered paint can be pumped back into the spray gun 21 by the electric pump 31 for spraying operations until the can spraying operation is completed. After the operation is completed, the hydraulic telescopic cylinder 13 is used to lift the can 4 away from the telescopic strip brush. The process is complete once the paint has dried.
[0039] For the parts of this utility model not disclosed in detail, those skilled in the art can ensure the smooth implementation of the solution of this utility model based on common sense, normal thinking logic and existing technology.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A tank surface spraying device, comprising a fixed base (1), characterized in that, A sliding base (11) is provided on one side of the fixed base (1), and the inner wall of one side of the fixed base (1) and the side of the sliding base (11) form a matching inverted V-shaped cavity; a spray gun guide rail (2) is provided on the top of the fixed base (1); an electric slide (22) and a spray gun (21) are installed on the spray gun guide rail (2); the spray gun (21) is installed at the bottom of the electric slide (22); hydraulic telescopic cylinders (13) are provided on both sides of the fixed base (1), a rotary motor (14) is installed at the top of one hydraulic telescopic cylinder (13), one end of a rotating shaft (12) is installed at the output end of the rotary motor (14), and one end of the other rotating shaft (12) is rotatably installed at the top of the other hydraulic telescopic cylinder (13); one side of the rotating shaft is driven by the rotary motor (14), and there are electric telescopic rods (15) on the inner sides of both ends of the rotating shaft, and a three-jaw clamp (16) for fixing the tank is connected through the telescopic rod.
2. The tank surface spraying device according to claim 1, characterized in that, A receiving cavity is formed between the fixed base (1) and the sliding base (11). The fixed base (1) has an opening on one side, to which a paint recycling hose (33) is connected.
3. The tank surface spraying device according to claim 2, characterized in that, The other end of the paint recycling hose (33) is connected to a paint recycling device (3). The paint recycling device (3) is equipped with a paint filter plate (34) for filtering paint impurities. An electric pump (31) is installed on the top of the paint recycling device (3). The output port of the electric pump (31) is connected to an output hose (32). The other end of the electric pump (31) is connected to the inside of the paint recycling device (3). The spray gun (21) is connected to the other end of the output hose (32).
4. The tank surface spraying device according to claim 3, characterized in that, The fixed base (1) is provided with a guide rail (17) at its bottom, and the sliding base (11) is installed on the top of the guide rail (17).
5. A tank surface spraying device according to claim 4, characterized in that, A sealing gasket (41) is provided on the outer edge of the sliding base (11).
6. A tank surface spraying device according to claim 5, characterized in that, The fixed base (1) is equipped with a retractable strip brush (18), which includes a fixed spring and a brush plate. One side of the fixed spring is installed on the fixed base (1), and the other end is connected to the brush plate.