CN221674688U - A kind of anti-rust spraying device for steel pipe interior - Google Patents

Abstract

The utility model relates to the technical field of steel pipe surface treatment, in particular to an internal rust-proof spraying device for a steel pipe, which comprises a high-pressure spraying machine main machine and a spraying trolley, wherein the high-pressure spraying machine main machine is fixedly arranged on the ground outside the steel pipe, the steel pipe is fixedly arranged on the ground through a pipe seat, and the high-pressure spraying machine main machine is connected with the spraying trolley through a hose; the spraying trolley comprises a trolley base, a travelling mechanism and a spraying mechanism, wherein the travelling mechanism is arranged at the bottom of the trolley base, the trolley base travels inside the steel pipe through the travelling mechanism, the spraying mechanism is fixedly arranged at the top of the trolley base, and the nozzle mechanism is connected with the high-pressure spraying machine host through a hose. The rust-proof spraying device inside the steel pipe realizes the functions of walking inside the steel pipe and spraying the periphery of the inner wall of the steel pipe by arranging the spraying trolley capable of walking inside the steel pipe and arranging the rotatable spray gun on the spraying trolley.

Description

A kind of anti-rust spraying device for steel pipe interior

Technical Field

The utility model relates to the technical field of steel pipe surface treatment, in particular to an anti-rust spraying device for the inside of a steel pipe.

Background Art

Steel pipes are used when building large bridges. They are used as the support and protection structure of bridges, which can enhance the compressive strength and durability of bridges. At the same time, steel pipes also have the characteristics of high strength, high precision and high durability, which can meet the needs of large bridge construction. As an important part of bridges, the durability and stability of steel pipes are crucial to the safety and service life of bridges. The surface of steel pipes is exposed to the atmosphere and is easily affected by environmental factors (such as humidity and pollutants), leading to corrosion and rust. The corrosion and rust of steel pipes will reduce their bearing capacity and structural safety, which may cause safety hazards of bridges. Anti-rust treatment can effectively protect steel pipes, extend their service life, and reduce the cost of maintenance and replacement. Therefore, in order to ensure the safety and stability of bridges, steel pipes need to be treated with anti-rust, which is generally done by applying anti-rust paint.

However, many of the steel pipes used in large bridges are long pipes with a length of 6 meters or 12 meters and a diameter of only 0.6 meters. Currently, workers cannot enter the inner wall of the long pipe to spray anti-rust paint, and can only use a long pole with a nozzle to spray at both ends. Due to the limited size of the long pole, the middle part of the steel pipe cannot be sprayed. Therefore, it is necessary to design an anti-rust spraying device for the inside of the steel pipe that personnel cannot enter to spray.

Utility Model Content

In order to solve the above problems, the utility model provides an anti-rust spraying device for the inside of a steel pipe, which solves the technical problem in the prior art that anti-rust paint cannot be sprayed on the inside of a longer steel pipe, and by providing a spray trolley that can move inside the steel pipe and a rotatable spray gun on the spray trolley, the device can move inside the steel pipe and spray around the inner wall of the steel pipe.

The technical solution of the utility model is as follows:

A device for spraying rust-proof inside a steel pipe comprises a main unit of a high-pressure spray machine and a spray trolley. The main unit of the high-pressure spray machine is fixedly placed on the ground outside the steel pipe, and the steel pipe is fixedly placed on the ground through a pipe seat. The main unit of the high-pressure spray machine is connected to the spray trolley through a hose. The spray trolley comprises a vehicle base, a walking mechanism and a spraying mechanism. A walking mechanism is arranged at the bottom of the vehicle base, and the vehicle base travels inside the steel pipe through the walking mechanism. The spraying mechanism is fixedly arranged on the top of the vehicle base, and the nozzle mechanism is connected to the main unit of the high-pressure spray machine through a hose.

The hose is an explosion-proof high-pressure hose.

The walking mechanism includes a wheel frame, a battery, a roller and a roller drive assembly. A wheel frame is arranged in the front and rear directions of the bottom of the vehicle base. The roller is rotatably mounted on the wheel frame. The shape of the roller is an arc rotating cylinder that matches the inner wall of the steel pipe. A roller drive assembly is arranged at the bottom of the vehicle base. The roller rotates under the action of the roller drive assembly. A battery is fixedly arranged on the top of the vehicle base, and the battery provides power to the roller drive assembly.

The roller drive assembly includes a travel gear ring, a travel gear and a travel motor, wherein the travel gear is arranged on the roller, the travel motor is fixedly arranged at the bottom of the vehicle base, the travel gear meshing with the travel gear ring is fixedly arranged on the output shaft of the travel motor, and the travel motor is electrically connected to the battery.

The roller is a split structure.

The roller is composed of a left wheel, a middle wheel and a right wheel fastened by bolts and nuts.

The spraying mechanism includes an intermediate seat, an intermediate tube, a support plate, a spray gun and an intermediate tube rotation drive assembly. The intermediate seat is fixedly arranged at the bottom of the vehicle base, and an intermediate hole is arranged on the intermediate seat. One end of the intermediate hole is connected to the main body of the high-pressure sprayer through the hose, and one end of the intermediate tube is rotatably connected to the other end of the intermediate hole in an airtight manner. A support plate is fixedly arranged on the top of the vehicle base, and the intermediate tube is rotatably installed on the support plate. The other end of the intermediate tube is connected to the spray gun, and the outlet of the spray gun faces the inner wall of the steel pipe. The intermediate tube rotates under the action of the intermediate tube rotation drive assembly.

A spray head is arranged at the outlet end of the spray gun.

A sealing ring is installed between the middle pipe and the middle hole.

The intermediate tube rotation drive assembly includes a rotating motor, a rotating gear and a rotating ring gear. The rotating motor is fixed on the top of the vehicle base, the rotating gear is fixedly arranged on the output shaft of the rotating motor, and a rotating ring gear meshing with the rotating gear is fixedly mounted on the intermediate tube. The rotating motor is electrically connected to the battery.

The beneficial effects of the utility model are:

1. The utility model discloses a steel pipe internal anti-rust spraying device, which solves the technical problem in the prior art that anti-rust paint cannot be sprayed on the inside of a long steel pipe.

2. The utility model discloses an anti-rust spraying device for the inside of a steel pipe. The anti-rust spraying device for the inside of a steel pipe realizes the function of walking inside the steel pipe and spraying around the inner wall of the steel pipe by arranging a spraying trolley that can walk inside the steel pipe and arranging a rotatable spray gun on the spraying trolley.

BRIEF DESCRIPTION OF THE DRAWINGS

By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

In the attached picture:

FIG1 is a schematic diagram of an anti-rust spraying device for the inside of a steel pipe according to an embodiment of the utility model;

FIG2 is a partial enlarged view of point A in FIG1;

FIG3 is a partial cross-sectional view of FIG1 ;

The components represented by the reference numerals in the figure are:

The utility model includes: 1. a main machine of a high-pressure spraying machine, 2. a ground, 3. a hose, 4. a steel pipe, 5. a pipe seat, 6. a vehicle base, 7. a wheel frame, 8. a storage battery, 9. a roller, 9a. a left wheel, 9b. a middle wheel, 9c. a right wheel, 9d. a bolt, 9e. a nut, 9f. a travel gear ring, 10. a travel gear, 11. a travel motor, 12. a middle seat, 12a. a middle hole, 13. a middle pipe, 14. a sealing ring, 15. a rotating motor, 16. a rotating gear, 17. a rotating gear ring, 18. a support plate, 19. a spray gun, and 20. a spray head.

DETAILED DESCRIPTION

As shown in Figure 1, the anti-rust spraying device for the inside of a steel pipe includes a high-pressure spraying machine main unit 1 and a spraying trolley. The high-pressure spraying machine main unit 1 is fixedly placed on the ground 2 outside a steel pipe 4, and the steel pipe 4 is fixedly placed on the ground 2 through a pipe seat 5. The high-pressure spraying machine main unit 1 is connected to the spraying trolley through a hose 3; the spraying trolley includes a vehicle base 6, a walking mechanism and a spraying mechanism. A walking mechanism is arranged at the bottom of the vehicle base 6, and the vehicle base 6 walks inside the steel pipe 4 through the walking mechanism. The spraying mechanism is fixedly arranged on the top of the vehicle base 6, and the nozzle mechanism is connected to the high-pressure spraying machine main unit 1 through a hose 3. The hose 3 is an explosion-proof high-pressure hose. Due to the length of the steel pipe 4, the length of the hose 3 required is at least longer than the length of the steel pipe 4. In order to facilitate the storage of the hose 3, the hose 3 can use an automatic hose reel on the market, and the automatic hose reel can store excess hoses 3.

As shown in Figure 3, the walking mechanism includes a wheel frame 7, a battery 8, a roller 9 and a roller drive assembly. A wheel frame 7 is provided in the front and rear directions of the bottom of the vehicle base 6. The roller 9 is rotatably mounted on the wheel frame 7. The roller 9 has a circular arc rotating cylinder shape that matches the inner wall of the steel pipe 4. A roller drive assembly is provided at the bottom of the vehicle base 6. The roller 9 rotates under the action of the roller drive assembly. A battery 8 is fixedly provided on the top of the vehicle base 6. The battery 8 provides power to the roller drive assembly; the roller drive assembly includes a walking gear ring 9f, a walking gear 10 and a walking motor 11. The walking gear 9f is provided on the roller 9, and the walking motor 11 is fixedly provided at the bottom of the vehicle base 6. A walking gear 10 meshing with the walking gear ring 9f is fixedly provided on the output shaft of the walking motor 11, and the walking motor 11 is electrically connected to the battery 8.

In order to facilitate installation, the roller 9 is set to a split structure. The roller 9 is composed of a left wheel 9a, an intermediate wheel 9b and a right wheel 9c fastened by bolts 9d and nuts 9e. The bolts 9d pass through the holes in the middle of the left wheel 9a, the intermediate wheel 9b and the right wheel 9c in turn and are fastened with the nuts 9e to connect the left wheel 9a, the intermediate wheel 9b and the right wheel 9c into a whole.

In this embodiment, the running gear ring 9f is a gear ring processed on the outer periphery of the intermediate wheel 9b.

As shown in Figure 2, the spraying mechanism includes an intermediate seat 12, an intermediate tube 13, a support plate 18, a spray gun 19 and an intermediate tube rotation drive assembly. The intermediate seat 12 is fixedly arranged at the bottom of the vehicle base 6, and an intermediate hole 12a is arranged on the intermediate seat 12. One end of the intermediate hole 12a is connected to the main body 1 of the high-pressure spray machine through the hose 3, that is, the end of the hose 3 is connected to the end of the intermediate hole 12a by a sealing pipe joint or the like, and one end of the intermediate tube 13 is rotatably connected to the other end of the intermediate hole 12a in an airtight manner. A support plate 18 is fixedly arranged on the top of the vehicle base 6, and the intermediate tube 13 is rotatably installed on the support plate 18. The other end of the intermediate tube 13 is connected to the spray gun 19 by a sealing pipe thread or the like. The outlet of the spray gun 19 faces the inner wall of the steel pipe 4, and the intermediate tube 13 rotates under the action of the intermediate tube rotation drive assembly.

A spray head 20 is provided at the outlet end of the spray gun 19 .

A sealing ring 14 is installed between the middle pipe 13 and the middle hole 12a.

The intermediate tube rotation drive assembly includes a rotating motor 15, a rotating gear 16 and a rotating ring gear 17. The rotating motor 15 is fixed to the top of the vehicle base 6. The rotating gear 16 is fixedly arranged on the output shaft of the rotating motor 15. The rotating ring gear 17 meshing with the rotating gear 16 is fixedly mounted on the intermediate tube 13. The rotating motor 15 is electrically connected to the battery 8.

The rotating gear ring 17 is provided with ribs on both sides to prevent the intermediate tube 13 from moving to both sides.

The device for spraying the anti-rust paint inside a steel pipe solves the technical problem in the prior art that it is impossible to spray anti-rust paint inside a longer steel pipe. By providing a spray trolley that can move inside the steel pipe and a rotatable spray gun on the spray trolley, the device can move inside the steel pipe and spray around the inner wall of the steel pipe.

Claims (10)

1. The internal rust-proof spraying device for the steel pipe is characterized by comprising a high-pressure spraying machine main machine (1) and a spraying trolley, wherein the high-pressure spraying machine main machine (1) is fixedly arranged on the ground (2) outside the steel pipe (4), the steel pipe (4) is fixedly arranged on the ground (2) through a pipe seat (5), and the high-pressure spraying machine main machine (1) is connected with the spraying trolley through a hose (3); the spraying trolley comprises a trolley base (6), a travelling mechanism and a spraying mechanism, wherein the travelling mechanism is arranged at the bottom of the trolley base (6), the trolley base (6) travels inside the steel pipe (4) through the travelling mechanism, the spraying mechanism is fixedly arranged at the top of the trolley base (6), and the spraying mechanism is connected with the high-pressure spraying machine host (1) through a hose (3).

2. The steel pipe internal rust prevention spraying device according to claim 1, wherein the hose (3) is an explosion-proof high-pressure hose.

3. The steel pipe internal rust-proof spraying device according to claim 1, wherein the travelling mechanism comprises a wheel frame (7), a storage battery (8), a roller (9) and a roller driving assembly, the wheel frames (7) are respectively arranged in the front-back direction of the bottom of the vehicle base (6), the roller (9) is rotatably arranged on the wheel frames (7), the shape of the roller (9) is an arc rotary cylinder matched with the inner wall of the steel pipe (4), the roller driving assembly is arranged at the bottom of the vehicle base (6), the roller (9) rotates under the action of the roller driving assembly, the storage battery (8) is fixedly arranged at the top of the vehicle base (6), and the storage battery (8) provides power for the roller driving assembly.

4. The steel pipe internal rust-proof spraying device according to claim 3, wherein the roller driving assembly comprises a traveling gear ring (9 f), a traveling gear (10) and a traveling motor (11), the traveling gear ring (9 f) is arranged on the roller (9), the traveling motor (11) is fixedly arranged at the bottom of the vehicle base (6), the traveling gear (10) meshed with the traveling gear ring (9 f) is fixedly arranged on an output shaft of the traveling motor (11), and the traveling motor (11) is electrically connected with the storage battery (8).

5. The steel pipe internal rust prevention spraying device according to claim 4, wherein the roller (9) is of a split type structure.

6. The steel pipe internal rust prevention spraying device according to claim 5, wherein the roller (9) is formed by fastening a left wheel (9 a), a middle wheel (9 b) and a right wheel (9 c) through bolts (9 d) and nuts (9 e).

7. A steel pipe internal rust prevention spraying device according to claim 3, characterized in that the spraying mechanism comprises a middle seat (12), a middle pipe (13), a supporting plate (18), a spray gun (19) and a middle pipe rotation driving assembly, wherein the middle seat (12) is fixedly arranged at the bottom of the car base (6), a middle hole (12 a) is formed in the middle seat (12), one end of the middle hole (12 a) is communicated with the high-pressure spraying machine main machine (1) through the hose (3), one end of the middle pipe (13) is rotatably and hermetically connected with the other end of the middle hole (12 a), the supporting plate (18) is fixedly arranged at the top of the car base (6), the middle pipe (13) is rotatably arranged on the supporting plate (18), the other end of the middle pipe (13) is connected with the spray gun (19), the outlet of the spray gun (19) faces the inner wall of the steel pipe (4), and the middle pipe (13) rotates under the action of the middle pipe rotation driving assembly.

8. The device for internal rust inhibitive spraying of steel pipes according to claim 7, wherein a spray head (20) is provided at the outlet end of the spray gun (19).

9. The apparatus according to claim 7, wherein a seal ring (14) is installed between the intermediate pipe (13) and the intermediate hole (12 a).

10. The steel pipe internal rust-proof spraying device according to claim 7, wherein the middle pipe rotation driving assembly comprises a rotation motor (15), a rotation gear (16) and a rotation gear ring (17), the rotation motor (15) is fixed at the top of the vehicle base (6), the rotation gear (16) is fixedly arranged on an output shaft of the rotation motor (15), the middle pipe (13) is fixedly sleeved with the rotation gear ring (17) meshed with the rotation gear (16), and the rotation motor (15) is electrically connected with the storage battery (8).