Steel pipe inner wall sand blasting device

Abstract

The utility model discloses a steel pipe inner wall sand blasting device which comprises a material storage box, a feeding port connected to the top of the material storage box, a clamping block arranged in the feeding port, a spraying assembly arranged in front of the material storage box and used for blasting sand in the material storage box, and a rotating assembly arranged behind the spraying assembly and used for driving the spraying assembly to rotate. According to the steel pipe inner wall sand blasting device, a motor moves to drive a rotating column to rotate, the rotating column rotates to drive a first supporting column to rotate, the first supporting column rotates to drive a second supporting column to rotate, and the second supporting column rotates to drive a rotating disc to rotate; a first connecting column is driven to rotate, a second connecting column is driven to rotate through rotation of the first connecting column, a first conveying column is driven to rotate through rotation of the second connecting column, and a second conveying column is driven to rotate through rotation of the first conveying column, so that the spraying assembly is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of the inner wall of steel pipes, and specifically relates to a sandblasting device for the inner wall of steel pipes. Background Art

[0002] Sandblasting the inner wall of a steel pipe is a commonly used surface treatment method for removing dirt, oxide layers, and rough surfaces inside the steel pipe. During the sandblasting process, by spraying granular materials such as silica sand at high speed and impacting them on the inner wall of the steel pipe, the effect of removing the defective surface is achieved. The steps of sandblasting the inner wall of a steel pipe include preparatory work, sandblasting operation, and post-sandblasting treatment. First, the steel pipe needs to be cleaned to ensure that there are no impurities and grease on the surface. Then, appropriate sandblasting equipment and abrasive materials are selected according to specific circumstances. The sandblasting equipment mainly includes a compressed air generator, a sandblasting gun, and a conveying system, etc. Then, the sandblasting equipment is connected to the inlet of the steel pipe, the equipment is started, and the abrasive material is sprayed into the inner wall of the steel pipe through the sandblasting gun. During sandblasting, the distance, angle, and sandblasting time of the sandblasting gun need to be controlled to meet the cleaning and roughness requirements. After completing the sandblasting operation, the steel pipe needs to be treated to remove the remaining abrasive material and dirt. Usually, methods such as cleaning, purging, and inspection are used for post-sandblasting treatment. During the cleaning process, the inner wall of the steel pipe is rinsed with a solvent or water to ensure the surface is clean. Purging is to use compressed air to discharge the remaining abrasive material, dust, etc. inside the steel pipe. Finally, check whether the cleanliness and roughness of the inner wall of the steel pipe meet the requirements. It should be noted that sandblasting the inner wall of a steel pipe needs to be carried out in a suitable place to avoid harm to the surrounding environment and personnel. During the operation process, protective equipment should be worn to ensure personnel safety. In addition, according to actual needs and requirements, other surface treatment methods can also be selected, such as brushing and spraying, etc.; with the enhancement of environmental awareness and the strengthening of environmental regulations, the technology of sandblasting the inner wall of steel pipes is also developing in a more environmentally friendly direction. For example, the research and application of dust-free technology to reduce dust pollution during the sandblasting process, etc.; when the existing sandblasting devices for the inner wall of steel pipes are in use, most of them require workers to hold them by hand, which makes the sandblasting devices for the inner wall of steel pipes very inconvenient to use. Summary of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a sandblasting device for the inner wall of steel pipes.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the present utility model provides the following technical solution: A sandblasting device for the inner wall of a steel pipe, which includes a storage box, an inlet is connected to the top of the storage box, a clamping block is arranged in the inlet, a spraying assembly is arranged in front of the storage box for spraying the sand in the storage box, a rotating assembly is arranged behind the spraying assembly for driving the spraying assembly to rotate, a fixing assembly is arranged behind the rotating assembly for providing a supporting force for the use of the rotating assembly, and a power supply assembly is arranged on the fixing assembly for providing power for the use of the rotating assembly. Inside the rotating assembly, there is a turntable arranged behind the storage box. Four sides of the front of the turntable are fixedly connected with first connecting columns. The inner side of the top of the first connecting column is fixedly connected with a second connecting column. The top of the second connecting column is fixedly connected with a first transmission column. A transmission groove is opened in the first transmission column. A second transmission column is fixedly connected in the transmission groove. By the rotation of the turntable, the first connecting column is driven to rotate. By the rotation of the first connecting column, the second connecting column is driven to rotate. By the rotation of the second connecting column, the first transmission column is driven to rotate. By the rotation of the first transmission column, the second transmission column in the internal transmission groove is driven to rotate, providing a basis for the use of the spraying assembly.

[0007] Preferably, the power supply assembly includes second support columns fixedly connected to the four sides of the rear of the turntable. The inner side of the top of the second support column is fixedly connected with a first support column. A rotating column is fixedly connected inside the top of the first support column. A motor is fixedly connected to the rotating shaft inside the rotating column. By the movement of the motor, the rotating column is driven to rotate. By the rotation of the rotating column, the first support column is driven to rotate. By the rotation of the first support column, the second support column is driven to rotate. By the rotation of the second support column, the turntable is driven to rotate, providing working power for the use of the rotating assembly.

[0008] Preferably, the fixing assembly includes support legs fixedly connected to the four sides of the motor. A suction cup is fixedly connected to the top of the support leg. By sucking on the inner wall of the steel pipe through the suction cup, and connecting the suction cup and the motor through the support legs, providing a supporting force for the use of the motor, and also providing a supporting force for the use of this sandblasting device.

[0009] Preferably, the spraying assembly includes a material distribution box fixedly connected to the top of the second transmission column. Transmission columns are fixedly connected to the four sides of the material distribution box. The top of the transmission column is fixedly connected with a spray nozzle. The sand is conveyed to the material distribution box through the second transmission column, the sand in the material distribution box is conveyed to the spray nozzle through the transmission column, and the sand is sprayed onto the inner wall of the steel pipe through the spray nozzle.

[0010] Preferably, the first connecting column and the second connecting column are fixedly connected to the middle part of the outer side of the first transmission column in an "L" shape. The second connecting column is driven to rotate by the first connecting column, and the first transmission column is driven to rotate.

[0011] Preferably, the first support column and the second support column are fixedly connected to the middle of the outer side of the rotating column in an "L" shape. By rotating the rotating column, the first support column is driven to rotate, and by rotating the first support column, the second support column is driven to rotate.

[0012] Preferably, the clamping block is in a "T" shape and is clamped inside the feed inlet. The bottom of the feed inlet is fixedly connected to the top of the storage box. Sand is loaded into the storage box through the feed inlet, and then the feed inlet is clamped tightly by the clamping block to prevent the sand in the storage box from flowing out.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present utility model provides a sandblasting device for the inner wall of a steel pipe, which has the following beneficial effects:

[0015] 1. In this sandblasting device for the inner wall of a steel pipe, the rotation of the rotating column is driven by the movement of the motor. The rotation of the rotating column drives the rotation of the first support column, the rotation of the first support column drives the rotation of the second support column, the rotation of the second support column drives the rotation of the turntable, the rotation of the turntable drives the rotation of the first connecting column, the rotation of the first connecting column drives the rotation of the second connecting column, the rotation of the second connecting column drives the rotation of the first transmission column, and the rotation of the first transmission column drives the rotation of the second transmission column, making the use of the spraying assembly more convenient.

[0016] 2. In this sandblasting device for the inner wall of a steel pipe, the rotation of the second transmission column drives the rotation of the material distribution box, and the rotation of the material distribution box drives the rotation of the transmission column, enabling the sand in the material distribution box to be sprayed everywhere in the light pipe through the spray ports, making the use of the sandblasting device more convenient. Through the cooperation of the support legs and the suction cups, support force is provided for the use of the entire sandblasting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is the front view of the structure of the present utility model;

[0019] Figure 2 is the rear view of the structure of the present utility model;

[0020] Figure 3 is the top view of the structure of the present utility model;

[0021] Figure 4 is the detail view of part A of the structure of the present utility model;

[0022] Figure 5This is a detailed view of part B of the structure of the present utility model.

[0023] In the figure: 1. Storage box; 2. Feeding port; 3. Clamping block; 5. Rotating assembly; 501. Turntable; 502. First connecting column; 503. Second connecting column; 504. First conveying column; 505. Conveying groove; 506. Second conveying column; 6. Fixing assembly; 601. Support leg; 602. Suction cup; 7. Spraying assembly; 701. Material distribution box; 702. Transmission column; 703. Spray nozzle; 8. Power supply assembly; 801. Motor; 802. Rotating column; 803. First support column; 804. Second support column. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Embodiment 1

[0026] As Figures 1-5 shown, the present utility model provides a sandblasting device for the inner wall of steel pipes, including a storage box 1. The top of the storage box 1 is fixedly connected with a feeding port 2. A clamping block 3 is clamped in the feeding port 2. The clamping block 3 is in a "T" shape and is clamped inside the feeding port 2. The bottom of the feeding port 2 is fixedly connected with the top of the storage box 1. A rotating assembly 5, a fixing assembly 6, a spraying assembly 7 and a power supply assembly 8 are arranged on the storage box 1. The rotating assembly 5 includes a turntable 501 arranged behind the storage box 1. Four first connecting columns 502 are fixedly connected around the front of the turntable 501 and are sequentially arranged on the top of the turntable 501. The inner sides of the tops of the first connecting columns 502 are fixedly connected with three second connecting columns 503, which are sequentially arranged on the tops of the first connecting columns 502. The tops of the second connecting columns 503 are fixedly connected with a first conveying column 504. A conveying groove 505 is formed in the first conveying column 504, and a second conveying column 506 is fixedly connected in the conveying groove 505. The first connecting column 502 and the second connecting column 503 are in an "L" shape and are fixedly connected to the middle part of the outer side of the first conveying column 504. The power supply assembly 8 includes two second support columns 804 fixedly connected around the back of the turntable 501 and are sequentially arranged around the back of the turntable 501. The inner sides of the tops of the second support columns 804 are fixedly connected with four first support columns 803, which are sequentially arranged at the bottoms of the second support columns 804. A rotating column 802 is fixedly connected inside the top of the first support column 803, and a motor 801 is fixedly connected to the rotating shaft inside the rotating column 802. The first support column 803 and the second support column 804 are in an "L" shape and are fixedly connected to the middle part of the outer side of the rotating column 802.

[0027] In this embodiment, the rotation of the turntable 501 drives the first connecting column 502 to rotate. The rotation of the first connecting column 502 drives the second connecting column 503 to rotate. The rotation of the second connecting column 503 drives the first conveying column 504 to rotate. The rotation of the first conveying column 504 drives the second conveying column 506 in the internal conveying groove 505 to rotate, providing a basis for the use of the spraying assembly 7. The movement of the motor 801 drives the rotating column 802 to rotate. The rotation of the rotating column 802 drives the first support column 803 to rotate. The rotation of the first support column 803 drives the second support column 804 to rotate. The rotation of the second support column 804 drives the turntable 501 to rotate, providing working power for the use of the rotating assembly 5.

[0028] Embodiment 2

[0029] As Figures 1-5 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: The fixing assembly 6 includes support legs 601 fixedly connected around the motor 801. The number of support legs 601 is four, which are arranged around the motor 801 in sequence. The top of the support legs 601 is fixedly connected with suction cups 602. The number of suction cups 602 is four, which are arranged on the top of the support legs 601 in sequence. The spraying assembly 7 includes a material distribution box 701 fixedly connected to the top of the second conveying column 506. Four transmission columns 702 are fixedly connected around the material distribution box 701. The number of transmission columns 702 is four, which are arranged around the material distribution box 701 in sequence. The top end of the transmission column 702 is fixedly connected with spray nozzles 703. The number of spray nozzles 703 is four, which are arranged on the top of the transmission column 702 in sequence.

[0030] In this embodiment, the suction cups 602 adsorb on the inner wall of the steel pipe. The support legs 601 connect the suction cups 602 and the motor 801, providing a supporting force for the use of the motor 801 and also providing a supporting force for the use of this sandblasting device. The second conveying column 506 conveys sand into the material distribution box 701. The transmission columns 702 convey the sand in the material distribution box 701 to the spray nozzles 703. The spray nozzles 703 spray the sand onto the inner wall of the steel pipe.

[0031] Working principle: Through the movement of the motor 801, the rotating column 802 at the output end of the motor 801 is driven to rotate. It is adsorbed on the inner wall of the steel pipe through the suction cup 602 and is connected to the motor 801 through the support leg 601, providing support force for the motor 801 and also for the use of the entire sandblasting device. Through the rotation of the rotating column 802, the first support column 803 is driven to rotate. Through the rotation of the first support column 803, the second support column 804 is driven to rotate. Through the rotation of the second support column 804, the turntable 501 is driven to rotate. Through the rotation of the turntable 501, the first connecting column 502 is driven to rotate. Through the rotation of the first connecting column 502, the second connecting column 503 is driven to rotate. Through the rotation of the second connecting column 503, the first conveying column 504 is driven to rotate. The rear of the first conveying column 504 is fixedly connected to the storage box 1. The sand is transported into the storage box 1 through the feed port 2 by taking out the clamping block 3, and then the clamping block 3 is tightened to prevent leakage of the storage box 1 when it rotates with the first conveying column 504. Through the rotation of the first conveying column 504, the second conveying column 506 is driven to rotate. Through the rotation of the second conveying column 506, the top material distribution box 701 is driven to rotate, so that the sand in the storage box 1 can be transported to the material distribution box 701 through the first conveying column 504 and the second conveying column 506. Through the transmission column 702, the sand can be used to process the inner wall of the steel pipe through the spray port 703, making the use of the sandblasting device more convenient.

Claims

1. A sandblasting device for the inner wall of a steel pipe, characterized in that, It includes: A storage bin (1); A feed inlet (2), connected to the top of the storage bin (1); A clamping block (3), arranged inside the feed inlet (2); A spraying assembly (7), arranged in front of the storage bin (1) for spraying the sand inside the storage bin (1); A rotating assembly (5), arranged behind the spraying assembly (7) for driving the spraying assembly (7) to rotate; A fixing assembly (6), arranged behind the rotating assembly (5) for providing a supporting force for the use of the rotating assembly (5); A power supply assembly (8), arranged on the fixing assembly (6) for providing power for the use of the rotating assembly (5); The rotating assembly (5) includes a turntable (501) arranged behind the storage bin (1). Four sides around the front of the turntable (501) are fixedly connected with first connecting columns (502). The inner sides of the tops of the first connecting columns (502) are fixedly connected with second connecting columns (503). The tops of the second connecting columns (503) are fixedly connected with first transmission columns (504). A transmission groove (505) is formed inside the first transmission column (504), and a second transmission column (506) is fixedly connected inside the transmission groove (505).

2. The internal wall sandblasting device for steel pipes according to claim 1, wherein: The power supply assembly (8) includes second support columns (804) fixedly connected to four sides around the rear of the turntable (501). The inner sides of the tops of the second support columns (804) are fixedly connected with first support columns (803). A rotating column (802) is fixedly connected inside the tops of the first support columns (803), and a motor (801) is fixedly connected to the rotating shaft inside the rotating column (802).

3. A steel pipe inner wall sandblasting device according to claim 1, characterized in that: The fixing assembly (6) includes support legs (601) fixedly connected to the periphery of the motor (801), and suction cups (602) are fixedly connected to the tops of the support legs (601).

4. A steel pipe inner wall sandblasting device according to claim 1, characterized in that: The spraying assembly (7) includes a material distribution box (701) fixedly connected to the top of the second transmission column (506). Transmission columns (702) are fixedly connected to the four sides of the material distribution box (701), and spray nozzles (703) are fixedly connected to the tops of the transmission columns (702).

5. A steel pipe inner wall sandblasting device according to claim 1, characterized in that: The first connecting column (502) and the second connecting column (503) are in an "L" shape and are fixedly connected to the middle part of the outer side of the first transmission column (504).

6. The internal wall sandblasting device for steel pipes according to claim 2, characterized in that: The first support column (803) and the second support column (804) are in an "L" shape and are fixedly connected to the middle part of the outer side of the rotating column (802).

7. A steel pipe inner wall sandblasting device according to claim 1, characterized in that: The clamping block (3) is in a "T" shape and is clamped inside the feed inlet (2). The bottom of the feed inlet (2) is fixedly connected to the top of the storage bin (1).

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