Spraying equipment for inner wall of steel pipe

Abstract

The utility model discloses spraying equipment for the inner wall of a steel pipe. The spraying equipment comprises a rack, a mounting plate, a movable seat, a spraying pipe, a movable driving mechanism, a supporting wheel mechanism and a pipe supporting mechanism, wherein the mounting plate is connected to the rack, the moving seat is connected to the mounting plate in a sliding mode in the front-back direction, and the rear end of the spraying pipe is connected to the moving seat; the moving driving mechanism is connected with the moving seat and is used for driving the moving seat to move back and forth so as to drive the front end part of the spraying pipe to move to extend into or retreat from the steel pipe; the supporting wheel mechanism is connected to the front end of the spraying pipe and used for extending into the steel pipe along with the spraying pipe and abutting against the inner wall of the steel pipe so as to support the front end of the spraying pipe. The pipe supporting mechanism is connected to the mounting plate and used for supporting the spraying pipe when the supporting wheel mechanism retreats from the steel pipe. The front end of the spraying pipe can be prevented from drooping, and the spraying pipe can be prevented from being broken.

Description

Technical Field

[0001] This utility model relates to a steel pipe inner wall spraying equipment. Background Technology

[0002] Currently, to prevent the inner wall of steel pipes from being corroded by water, oxygen, acids, alkalis, and salts, it is common practice to spray a layer of anti-corrosion coating onto the inner wall of the steel pipe to prevent corrosion and thus extend its service life. For example, Chinese patent CN218013595U discloses a small-diameter steel pipe inner wall anti-corrosion coating spraying device. In this device, the anti-corrosion coating is sprayed onto the inner wall of the steel pipe by extending a spraying pipe into the inside of the steel pipe. However, when spraying the inner wall of some longer steel pipes, the length of the spraying pipe needs to be designed to be very long. This can cause the front end of the spraying pipe to sag, affecting the spraying operation and, in severe cases, even causing the spraying pipe to break. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a steel pipe inner wall spraying device that can prevent the front end of the spraying pipe from sagging and avoid the spraying pipe from breaking.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a steel pipe inner wall spraying equipment, including a frame, a mounting plate, a movable seat, a spraying pipe, a moving drive mechanism, a support wheel mechanism and a support mechanism;

[0005] The mounting plate is connected to the frame;

[0006] The movable seat is slidably connected to the mounting plate in the front-to-back direction;

[0007] The rear end of the spray pipe is connected to the movable base;

[0008] The moving drive mechanism is connected to the mounting plate. The moving drive mechanism is connected to the moving base and is used to drive the moving base to move back and forth, thereby driving the front end of the spraying pipe to move into or out of the steel pipe.

[0009] The support wheel mechanism is connected to the front end of the spray pipe and is used to follow the spray pipe into the steel pipe and abut against the inner wall of the steel pipe to provide support for the front end of the spray pipe.

[0010] The support mechanism is connected to the mounting plate and is used to support the spray pipe when the support wheel mechanism retracts from the steel pipe.

[0011] Furthermore, the steel pipe inner wall spraying equipment also includes a lifting drive component;

[0012] The mounting plate is slidably connected to the frame in the vertical direction;

[0013] The lifting drive component is connected to the frame and is connected to the mounting plate to drive the mounting plate to move up and down into place.

[0014] Furthermore, the lifting drive component is an electric cylinder.

[0015] Furthermore, the movable seat is slidably connected to the mounting plate in the front-to-back direction via a guide rail, and the moving drive mechanism is a rodless cylinder or a linear module.

[0016] Further, a specific structure of the hosting mechanism is provided, wherein the hosting mechanism includes a slide, hosting wheels, and hosting cylinders;

[0017] The slide block is slidably connected to the mounting plate in the vertical direction;

[0018] The support wheel is rotatably connected to the slide block;

[0019] The support cylinder is connected to the mounting plate, and the support cylinder is connected to the slide block and is used to drive the slide block to rise, thereby driving the support wheel to rise to support the spray pipe.

[0020] Further, a specific structure of the support wheel mechanism is provided, the support wheel mechanism comprising a plurality of wheel assemblies sequentially distributed along the circumference of the spray pipe;

[0021] The wheel assembly includes a wheel body, a swing arm, and a spring;

[0022] The front end of the swing arm is hinged to the spray pipe;

[0023] The wheel is rotatably connected to the rear end of the swing arm;

[0024] The spring is located between the spray pipe and the swing arm. The spring abuts against the spray pipe and the swing arm respectively and drives the swing arm to swing outward and open, thereby driving the wheel to abut against the inner wall of the steel pipe.

[0025] Furthermore, the front end of the swing arm is provided with a limiting part, which is used to abut against the outer wall of the spray tube when the swing arm is driven by the spring to swing outward to the limit position, so as to limit the swing arm from continuing to swing outward.

[0026] Furthermore, a first connecting pin is connected to the spray pipe, a second connecting pin is connected to the swing arm, one end of the spring is sleeved on the first connecting pin and abuts against the spray pipe, and the other end of the spring is sleeved on the second connecting pin and abuts against the swing arm.

[0027] Furthermore, the spray pipe includes a pipe body extending in a front-to-back direction and a nozzle connected to the front end of the pipe body, and the rear end of the pipe body is connected to the movable base.

[0028] Furthermore, the steel pipe inner wall spraying equipment also includes a material tank, a plunger pump, a hose, a pneumatic booster pump, and a pneumatic motor;

[0029] The material tank is connected to the inlet of the plunger pump, and the outlet of the plunger pump is connected to the rear end of the pipe body through the hose;

[0030] The pneumatic booster pump is connected to the pneumatic motor and is used to drive the pneumatic motor to rotate;

[0031] The pneumatic motor is connected to the plunger pump and is used to drive the plunger pump to pump the paint in the tank into the pipe.

[0032] After adopting the above technical solution, the moving drive mechanism can drive the moving seat forward, thereby causing the front end of the spraying pipe to extend into the steel pipe. Then, the spraying pipe can perform spraying operations on the inner wall of the steel pipe. At the same time, the moving drive mechanism drives the moving seat to move backward at a constant speed, so that the spraying pipe sprays while exiting the steel pipe, greatly improving the automation level of the inner wall spraying of the steel pipe, and reducing the operation and maintenance costs. More specifically, when the front end of the spraying pipe and the support wheel mechanism extend into the steel pipe, the support wheel mechanism will abut against the inner wall of the steel pipe, thereby providing support for the front end of the spraying pipe to prevent the front end of the spraying pipe from sagging. When the support wheel mechanism exits the steel pipe, it can no longer provide support for the front end of the spraying pipe. At this time, the support mechanism can support the spraying pipe to prevent the front end of the spraying pipe from sagging, thereby avoiding the spraying pipe from sagging and breaking due to the length process. Attached Figure Description

[0033] Figure 1 This is a front view of the steel pipe inner wall spraying equipment of this utility model;

[0034] Figure 2 This is a left view of the steel pipe inner wall spraying equipment of this utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the steel pipe inner wall spraying equipment of this utility model. Figure 1 ;

[0036] Figure 4 This is a schematic diagram of the structure of the steel pipe inner wall spraying equipment of this utility model. Figure 2 ;

[0037] Figure 5 For the present utility model Figure 4Detailed view of part A in the middle;

[0038] In the diagram: 1. Frame; 2. Mounting plate; 3. Movable seat; 4. Spray pipe; 5. Movable drive mechanism; 6. Support wheel mechanism; 7. Host mechanism; 8. Steel pipe; 9. Lifting drive component; 10. Slide; 11. Host wheel; 12. Host cylinder; 13. Wheel body; 14. Swing arm; 15. Spring; 16. Limiting part; 17. Pipe body; 18. Nozzle; 19. Material tank; 20. Pneumatic booster pump. Detailed Implementation

[0039] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0040] like Figures 1-5 As shown, a steel pipe inner wall spraying equipment includes a frame 1, a mounting plate 2, a movable seat 3, a spraying pipe 4, a moving drive mechanism 5, a support wheel mechanism 6, and a support mechanism 7.

[0041] The mounting plate 2 is connected to the frame 1;

[0042] The movable base 3 is slidably connected to the mounting plate 2 in the front-to-back direction;

[0043] The rear end of the spray pipe 4 is connected to the movable base 3;

[0044] The moving drive mechanism 5 is connected to the mounting plate 2. The moving drive mechanism 5 is connected to the moving base 3 and is used to drive the moving base 3 to move back and forth, thereby driving the front end of the spray pipe 4 to move into or out of the steel pipe 8.

[0045] The support wheel mechanism 6 is connected to the front end of the spray pipe 4 and is used to follow the spray pipe 4 into the steel pipe 8 and abut against the inner wall of the steel pipe 8 to provide support for the front end of the spray pipe 4.

[0046] The support mechanism 7 is connected to the mounting plate 2 and is used to support the spraying pipe 4 when the support wheel mechanism 6 retracts from the steel pipe 8. Specifically, the moving drive mechanism 5 can drive the moving seat 3 to move forward, thereby causing the front end of the spraying pipe 4 to extend into the steel pipe 8. Then, the spraying pipe 4 can perform spraying operations on the inner wall of the steel pipe 8. At the same time, the moving drive mechanism 5 drives the moving seat 3 to move backward at a constant speed, so that the spraying pipe 4 retracts from the steel pipe 8 while spraying, which greatly improves the automation level of the inner wall spraying of the steel pipe 8 and has low operating and maintenance costs. More specifically, when the front end of the spraying pipe 4 and the support wheel mechanism 6 extend into the steel pipe 8, the support wheel mechanism 6 will abut against the inner wall of the steel pipe 8, thereby providing support for the front end of the spraying pipe 4 to prevent the front end of the spraying pipe 4 from sagging. When the support wheel mechanism 6 retracts from the steel pipe 8, the support wheel mechanism 6 can no longer provide support for the front end of the spraying pipe 4. At this time, the support mechanism 7 can support the spraying pipe 4 to prevent the front end of the spraying pipe 4 from sagging, thereby avoiding the spraying pipe 4 from sagging and breaking due to the length process.

[0047] like Figures 1-4 As shown, the steel pipe inner wall spraying equipment may also include a lifting drive component 9;

[0048] The mounting plate 2 is slidably connected to the frame 1 in the vertical direction;

[0049] The lifting drive component 9 is connected to the frame 1 and is connected to the mounting plate 2 and is used to drive the mounting plate 2 to move up and down into place. Specifically, when the mounting plate 2 moves up and down, it will drive the spray pipe 4 on the moving seat 3 to move up and down, thereby adjusting the height of the spray pipe 4 to be aligned with the center of the steel pipe 8. In this embodiment, the lifting drive component 9 can be an electric cylinder.

[0050] Specifically, the movable seat 3 is slidably connected to the mounting plate 2 in the front-to-back direction via a guide rail, and the movable drive mechanism 5 can be a rodless cylinder. Of course, in some embodiments, the movable drive mechanism 5 can also be a linear module.

[0051] like Figures 2-4 As shown, the hosting mechanism 7 may include a slide, hosting wheels 11 and hosting cylinder 12;

[0052] The slide block is slidably connected to the mounting plate 2 in the vertical direction;

[0053] The support wheel 11 is rotatably connected to the slide block;

[0054] The support cylinder 12 is connected to the mounting plate 2. The support cylinder 12 is connected to the slide and is used to drive the slide to rise, thereby driving the support wheel 11 to rise to support the spray pipe 4. Specifically, when the moving drive mechanism 5 drives the moving seat 3 to move forward, it will drive the spray pipe 4 to move forward and extend into the steel pipe 8. At the same time, the support wheel mechanism 6 will follow the spray pipe 4 into the steel pipe 8. After the support wheel mechanism 6 extends into the steel pipe 8, it can abut against the inner wall of the steel pipe 8 to provide support for the front end of the spray pipe 4. At this time, the support cylinder 12 can drive the slide to move and descend, thereby driving the support wheel 11 to descend, thereby avoiding the collision between the support wheel 11 and the moving seat 3. More specifically, when the moving drive mechanism 5 drives the moving seat 3 to move backward, the moving seat 3 will drive the spraying pipe 4 to move backward to exit the steel pipe 8. Before the support wheel mechanism 6 exits the steel pipe 8, the support cylinder 12 will drive the slide to rise and thus drive the support wheel 11 to rise, thereby making the support wheel 11 support the spraying pipe 4.

[0055] like Figures 2-5 As shown, the support wheel mechanism 6 may include a plurality of wheel assemblies arranged sequentially along the circumference of the spray pipe 4;

[0056] The wheel assembly includes a wheel body 13, a swing arm 14, and a spring 15;

[0057] The front end of the swing arm 14 is hinged to the spray pipe 4;

[0058] The wheel 13 is rotatably connected to the rear end of the swing arm 14;

[0059] The spring 15 is disposed between the spray pipe 4 and the swing arm 14. The spring 15 abuts against the spray pipe 4 and the swing arm 14 respectively and drives the swing arm 14 to swing outward and open, thereby driving the wheel 13 to abut against the inner wall of the steel pipe 8, thereby providing support for the front end of the spray pipe 4. Specifically, when the inner diameter of the steel pipe 8 is different, the spring 15 can be compressed or rebound, so that the wheel 13 can abut against the inner wall of the steel pipe 8 with different inner diameters. In this embodiment, three wheel assemblies are evenly distributed.

[0060] like Figure 5 As shown, the front end of the swing arm 14 is provided with a limiting part 16. The limiting part 16 is used to abut against the outer wall of the spray pipe 4 when the spring 15 drives the swing arm 14 to swing outward to the limit position, so as to restrict the swing arm 14 from continuing to swing outward.

[0061] Specifically, a first connecting pin is connected to the spray pipe 4, a second connecting pin is connected to the swing arm 14, one end of the spring 15 is sleeved on the first connecting pin and abuts against the spray pipe 4, and the other end of the spring 15 is sleeved on the second connecting pin and abuts against the swing arm 14.

[0062] like Figures 2-4 As shown, the spray pipe 4 may include a pipe body 17 extending in the front-rear direction and a nozzle 18 connected to the front end of the pipe body 17, and the rear end of the pipe body 17 is connected to the movable seat 3; specifically, the nozzle 18 is used to extend into the steel pipe 8, the support wheel mechanism 6 is connected to the front end of the pipe body 17, and the support mechanism 7 is used to support the pipe body 17.

[0063] In this embodiment, the steel pipe inner wall spraying equipment may further include a material tank 19, a plunger pump, a hose, a pneumatic booster pump 20, and a pneumatic motor.

[0064] The material tank 19 is connected to the inlet of the plunger pump, and the outlet of the plunger pump is connected to the rear end of the pipe body 17 through the hose.

[0065] The pneumatic booster pump 20 is connected to the pneumatic motor and is used to drive the pneumatic motor to rotate;

[0066] The pneumatic motor is connected to the plunger pump and is used to drive the plunger pump to pump the paint in the material tank 19 into the pipe body 17, so that the paint in the pipe body 17 is sprayed out through the nozzle 18 and sprayed onto the inner wall of the steel pipe 8; wherein, the material tank 19, the pneumatic motor, the pneumatic booster pump 20 and the plunger pump can all be installed on the frame 1.

[0067] In summary, the moving drive mechanism 5 can drive the moving seat 3 forward, thereby causing the front end of the spraying pipe 4 to extend into the steel pipe 8. The spraying pipe 4 can then perform spraying operations on the inner wall of the steel pipe 8. Simultaneously, the moving drive mechanism 5 drives the moving seat 3 to move backward at a constant speed, causing the spraying pipe 4 to spray while simultaneously exiting the steel pipe 8. This significantly improves the automation level of the inner wall spraying of the steel pipe 8 and reduces operating and maintenance costs. More specifically, when the front end of the spraying pipe 4 and the support wheel mechanism 6 extend into the steel pipe 8, the support wheel mechanism 6 abuts against the inner wall of the steel pipe 8, providing support to the front end of the spraying pipe 4 to prevent it from sagging. When the support wheel mechanism 6 exits the steel pipe 8, it can no longer provide support to the front end of the spraying pipe 4. At this time, the support mechanism 7 can hold the spraying pipe 4, preventing it from sagging and thus avoiding breakage due to the length of the pipe.

[0068] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steel pipe inner wall spraying equipment, characterized in that, It includes a frame (1), a mounting plate (2), a moving base (3), a spray pipe (4), a moving drive mechanism (5), a support wheel mechanism (6), and a hosting mechanism (7); The mounting plate (2) is connected to the frame (1); The movable seat (3) is slidably connected to the mounting plate (2) in the front-back direction; The rear end of the spray pipe (4) is connected to the movable base (3); The moving drive mechanism (5) is connected to the mounting plate (2). The moving drive mechanism (5) is connected to the moving seat (3) and is used to drive the moving seat (3) to move back and forth, thereby driving the front end of the spray pipe (4) to extend into or out of the steel pipe (8). The support wheel mechanism (6) is connected to the front end of the spray pipe (4) and is used to follow the spray pipe (4) into the steel pipe (8) and abut against the inner wall of the steel pipe (8) to provide support for the front end of the spray pipe (4); The support mechanism (7) is connected to the mounting plate (2) and is used to support the spray pipe (4) when the support wheel mechanism (6) exits the steel pipe (8).

2. The steel pipe inner wall spraying equipment according to claim 1, characterized in that, It also includes a lifting drive component (9); The mounting plate (2) is slidably connected to the frame (1) in the vertical direction; The lifting drive component (9) is connected to the frame (1), and the lifting drive component (9) is connected to the mounting plate (2) and is used to drive the mounting plate (2) to move up and down into place.

3. The steel pipe inner wall spraying equipment according to claim 2, characterized in that, The lifting drive component (9) is an electric cylinder.

4. The steel pipe inner wall spraying equipment according to claim 1, characterized in that, The movable seat (3) is slidably connected to the mounting plate (2) in the front-to-back direction via a guide rail, and the movable drive mechanism (5) is a rodless cylinder or a linear module.

5. The steel pipe inner wall spraying equipment according to claim 1, characterized in that, The hosting mechanism (7) includes a slide, (10) hosting wheels (11) and hosting cylinder (12); The slide block is slidably connected to the mounting plate (2) in the vertical direction; The support wheel (11) is rotatably connected to the slide; The hosting cylinder (12) is connected to the mounting plate (2). The hosting cylinder (12) is connected to the slide and is used to drive the slide to rise, thereby driving the hosting wheel (11) to rise to support the spray pipe (4).

6. The steel pipe inner wall spraying equipment according to claim 1, characterized in that, The support wheel mechanism (6) includes a plurality of wheel assemblies arranged sequentially along the circumference of the spray pipe (4); The wheel assembly includes a wheel body (13), a swing arm (14), and a spring (15); The front end of the swing arm (14) is hinged to the spray pipe (4); The wheel (13) is rotatably connected to the rear end of the swing arm (14); The spring (15) is located between the spray pipe (4) and the swing arm (14). The spring (15) abuts against the spray pipe (4) and the swing arm (14) respectively and is used to drive the swing arm (14) to swing outward and open, thereby driving the wheel (13) to abut against the inner wall of the steel pipe (8).

7. The steel pipe inner wall spraying equipment according to claim 6, characterized in that, The front end of the swing arm (14) is provided with a limiting part (16), which is used to abut against the outer wall of the spray pipe (4) when the swing arm (14) is driven by the spring (15) to swing outward to the limit position, so as to restrict the swing arm (14) from continuing to swing outward.

8. The steel pipe inner wall spraying equipment according to claim 6, characterized in that, A first connecting pin is connected to the spray tube (4), a second connecting pin is connected to the swing arm (14), one end of the spring (15) is sleeved on the first connecting pin and abuts against the spray tube (4), and the other end of the spring (15) is sleeved on the second connecting pin and abuts against the swing arm (14).

9. The steel pipe inner wall spraying equipment according to claim 1, characterized in that, The spray pipe (4) includes a pipe body (17) extending in the front-rear direction and a nozzle (18) connected to the front end of the pipe body (17), the rear end of the pipe body (17) being connected to the movable seat (3).

10. The steel pipe inner wall spraying equipment according to claim 9, characterized in that, It also includes a material tank (19), a plunger pump, hoses, a pneumatic booster pump (20), and a pneumatic motor; The material tank (19) is connected to the inlet of the plunger pump, and the outlet of the plunger pump is connected to the rear end of the pipe body (17) through the hose; The pneumatic booster pump (20) is connected to the pneumatic motor and is used to drive the pneumatic motor to rotate; The pneumatic motor is connected to the plunger pump and is used to drive the plunger pump to pump the paint in the tank (19) into the pipe (17).

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