Pipe spraying device

Abstract

The utility model discloses a pipe spraying device, which relates to the technical field of pipeline spraying and comprises a frame body axially moving along the inner side of a pipe. The frame body is provided with a rotary spray head for spraying paint to the inner side of the pipe; a winding reel is arranged on one side of the rotary nozzle, a traction rope is connected to the outer side of the winding reel, and a hook is connected to the tail end of the traction rope; the winding reel rotates along with the rotary spray head, the winding reel rotates to wind the traction rope, the other end of the traction rope is hung at the end of the pipe through the hook, the frame body can automatically move in the pipe along with winding of the traction rope, and the structure is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline spraying technical field, in particular to a kind of pipe spraying device. BACKGROUND

[0002] The anticorrosive coating is formed by spraying anticorrosive paint on the inner wall of metal pipe, which can effectively improve the anticorrosive performance and service life of metal pipe. Since the circumference of metal pipe is closed and the axial span is usually much larger than the radial span, a trolley is used to drive a rotating nozzle to realize spraying when spraying the inner wall of pipe. However, in the prior art, the trolley needs to be manually pulled by a paint supply pipe to move, which affects the spraying quality if the trolley is driven too fast or too slow, and needs to be continuously operated. The patent CN117139016B discloses a kind of pipeline inner wall spraying device, and the trolley can automatically move, but the structure is relatively complex. SUMMARY

[0003] The utility model aims at solving the problems in the prior art, and provides a simple and convenient pipe spraying device that can automatically move.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A pipe spraying device includes a frame body moving axially along the inner side of the pipe. A rotating nozzle is arranged on the frame body to spray paint to the inner side of the pipe. A winding drum is arranged on one side of the rotating nozzle. A traction rope is connected to the outer side of the winding drum. A hook is connected to the end of the traction rope.

[0006] The hook is hung on the end of the pipe. The winding drum rotates with the rotating nozzle. The winding drum winds the traction rope and drives the frame body to move axially in the pipe.

[0007] Further, the center of rotation of the winding drum and the center of rotation of the rotating nozzle are located on the same straight line.

[0008] Further, a fixing ring is arranged on the frame body, and the traction rope passes through the fixing ring.

[0009] Further, a motor is arranged on the frame body. A gear is connected to the output end of the motor. A gear ring is arranged on the outer side of the rotating nozzle. The gear is engaged with the gear ring.

[0010] Further, the frame body includes a center pipe. A fixed pipe is installed at one end of the center pipe. A paint supply pipe is connected to one end of the fixed pipe to supply paint. The paint supply pipe passes through the center pipe. The other end of the fixed pipe is rotatably connected to the rotating nozzle.

[0011] Further, a plurality of telescopic rods are circumferentially arranged on the outer side of the end of the center pipe. Traveling wheels are installed at the ends of the telescopic rods.

[0012] Further, the telescopic rod comprises an outer tube, an inner tube and a screw; the outer tube is connected with the center tube, the inner tube slides along the inner side of the outer tube and is provided with the walking wheel at the end; the screw is threadedly connected with the outer tube and abuts against the outer side of the inner tube at the inner end.

[0013] Further, the end of the center tube is provided with a reinforcing ring and the outer tube penetrates through the reinforcing ring.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] The winding drum rotates with the rotary nozzle, the winding drum rotates to wind the traction rope, the other end of the traction rope is hung on the end of the pipe material through the hook, the frame body can automatically move in the pipe material with the winding of the traction rope, and the structure is relatively simple.

[0016] The rotary nozzle is driven to rotate by the motor, can comprehensively spray the inner wall of the pipe material, the frame body has the telescopic rod and the walking wheel with adjustable length, and can stably move in the axial direction in the pipe material with different inner diameters. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] Figure 2 It is the structural schematic diagram of the front end of the utility model.

[0019] Figure 3 It is the enlarged schematic view of the rotary nozzle, the winding drum and the hook of the utility model.

[0020] Figure 4 It is the structural schematic diagram of the frame body of the utility model from the first perspective.

[0021] Figure 5 It is the structural schematic diagram of the frame body of the utility model from the second perspective.

[0022] Figure 6 It is the structural schematic diagram of the inner side of the winding drum of the utility model.

[0023] In the drawing: 1, frame body; 2, rotary nozzle; 3, winding drum; 4, traction rope; 5, hook; 6, fixed ring; 7, motor; 8, gear; 9, gear ring;

[0024] 11, center tube; 12, fixed tube; 13, feeding pipe; 14, outer tube; 15, inner tube; 16, screw; 17, walking wheel; 18, reinforcing ring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described examples are only a part of the examples of the utility model, but not all the examples. The components of the utility model embodiments described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] In the description of the utility model, unless explicitly defined and limited, the terms "mounting", "connection" and "connection" that may appear should be understood broadly, for example, it can be fixedly connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In the description of the utility model, it should be noted that, unless explicitly defined and limited, the term "provided with" that may appear should be understood broadly, for example, the object of "provided with" can be part of the body, or it can be arranged separately from the body and connected to the body, and the connection can be detachable or non-detachable. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] The utility model will be further described in detail below in combination with examples.

[0029] The specific embodiments of the pipe spraying device provided by the utility model are as follows:

[0030] Please refer to Figures 1-6 , the pipe spraying device comprises a frame body 1 moving along the inner side of the pipe in the axial direction; in this embodiment, the frame body 1 comprises a center pipe 11, the front end of the center pipe 11 is closed, the rear end has a pipe opening, the front end of the center pipe 11 is provided with a fixed pipe 12, the rear end of the fixed pipe 12 is connected with a supply pipe 13 for conveying coating material, the supply pipe 13 passes through the center pipe 11 and extends to the outside of the pipe.

[0031] The front end of the fixed pipe 12 is rotatably connected with a rotary spray head 2, the coating material in the supply pipe 13 is input into the rotary spray head 2 through the fixed pipe 12, the rotary spray head 2 comprises a disc-shaped shell structure, the rear wall center of the disc-shaped shell structure is rotatably connected with the front end of the fixed pipe 12, the outer ring side of the disc-shaped shell structure is connected with radial spray rods, the spray rods are provided with spray holes at the ends, and the coating material is sprayed into the inner side of the pipe through the disc-shaped shell structure and the spray rods.

[0032] Four telescopic rods are arranged on the outer side of the front and rear ends of the center tube 11 in a circumferential direction, and walking wheels 17 are arranged at the ends of the telescopic rods. The telescopic rod comprises an outer tube 14, an inner tube 15 and a screw 16. The outer tube 14 is connected to the outer side of the center tube 11. The outer tube 14 and the inner tube 15 are arranged in a radial direction. The inner tube 15 slides along the inner side of the outer tube 14, and the walking wheels 17 are arranged at the ends of the inner tube 15. The screw 16 is threadedly connected to the outer tube 14, and the inner end of the screw 16 abuts against the outer side of the inner tube 15.

[0033] In the embodiment, two screws 16 are connected to each outer tube 14. The length of the telescopic rod is adjusted by adjusting the extension length of the inner tube 15. The length of the telescopic rod is adjusted to be able to abut against the inner side of the pipe. The screw 16 is tightened to stabilize the length of the telescopic rod. The telescopic rod with adjustable length enables the frame body 1 to stably move along the inner wall of the pipe with different diameters.

[0034] A reinforcing ring 18 is arranged on the outer side of the end of the center tube 11. The center of the reinforcing ring 18 is located on the center of the center tube 11. The outer tube 14 passes through the reinforcing ring 18. The reinforcing ring 18 makes the structure more stable and avoids deformation.

[0035] A winding drum 3 is arranged on the rear side of the rotary spray head 2. The rotation center of the winding drum 3 and the rotation center of the rotary spray head 2 are located on the same straight line. The winding drum 3 is arranged on the outer side of the fixed tube 12 and has a gap with the outer side of the fixed tube 12. A traction rope 4 is connected to the outer side of the winding drum 3. The winding drum 3 can wind the traction rope 4. A fixed ring 6 is arranged on the side of the center tube 11 of the frame body 1. The traction rope 4 passes through the fixed ring 6, extends backward through the pipe and extends to the rear end of the pipe.

[0036] A hook 5 is connected to the end of the traction rope 4. In the embodiment, the hook 5 is in the shape of R and is made of elastic steel, which can be hung on the side wall of the end of the pipe.

[0037] A motor 7 is arranged at the front end of the center tube 11 of the frame body 1. A gear 8 is connected to the output end of the motor 7. A gear ring 9 is arranged on the outer side of the rotary spray head 2. The gear 8 is engaged with the gear ring 9. The motor 7 drives the gear 8 to rotate. The gear 8 drives the rotary spray head 2 to rotate through the gear ring 9. The rotary spray head 2 rotates to spray while driving the winding drum 3 to rotate to wind the traction rope 4.

[0038] During the spraying operation, the hook 5 is hung on the rear end of the pipe. The motor 7 drives the rotary spray head 2 and the winding drum 3 to rotate. The rotary spray head 2 rotates to spray the inner side of the pipe. The winding drum 3 rotates to wind the traction rope 4 while following the rotary spray head 2 to rotate. The winding drum 3 drives the frame body 1 to move axially from front to back in the pipe. The frame body 1 pushes the feeding pipe 13 to gradually exit the pipe from back to front. The rotary spray head 2 rotates while moving axially along the inner side of the pipe to realize overall spraying. The traction rope 4 does not need to be manually pulled during the spraying process.

[0039] Finally, it needs to be explained that the above is only the preferred embodiment of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can make the modification of the technical scheme recorded in the foregoing embodiments without the creative labor, or make the equivalent replacement of part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pipe spraying apparatus, characterised in that: It includes the frame body (1) that moves along the pipe material inside axial direction, the frame body (1) is equipped with the rotary spray head (2) that sprays paint to the pipe material inside, the rotary spray head (2) side is equipped with the winding drum (3), the winding drum (3) outside is connected with the traction rope (4), the traction rope (4) end is connected with the hook (5); The hook (5) is hung in the pipe material end, the winding drum (3) follows the rotary spray head (2) rotation, the winding drum (3) rotation reeling traction rope (4), and drives the frame body (1) in the pipe material inside axial movement.

2. The pipe spraying apparatus of claim 1, wherein: The rotary center of the winding drum (3) and the rotary center of the rotary spray head (2) are located on the same straight line.

3. The pipe spraying apparatus of claim 1, wherein: The frame body (1) is equipped with the fixed ring (6), and the traction rope (4) passes through the fixed ring (6).

4. The pipe spraying apparatus of claim 1, wherein: The frame body (1) is equipped with the motor (7), and the motor (7) output end is connected with the gear (8), and the rotary spray head (2) outside is equipped with the gear ring (9), and the gear (8) is engaged with the gear ring (9).

5. The pipe spraying apparatus of claim 1, wherein: The frame body (1) includes the center tube (11), one end of the center tube (11) is installed with the fixed tube (12), one end of the fixed tube (12) is connected with the feed pipe (13) of conveying paint, and the feed pipe (13) passes through the center tube (11);The other end of the fixed tube (12) is rotatably connected with the rotary spray head (2).

6. The pipe spraying apparatus of claim 5, wherein: The outer side of the end of the center tube (11) is uniformly distributed with a plurality of telescopic rods, and the end of the telescopic rod is installed with the walking wheel (17).

7. The pipe spraying apparatus of claim 6, wherein: The telescopic rod includes an outer tube (14), an inner tube (15) and a screw (16), the outer tube (14) is connected with the center tube (11), the inner tube (15) slides along the inner side of the outer tube (14), and the end is installed with the walking wheel (17), the screw (16) is threadedly connected with the outer tube (14), and the inner end abuts against the outer side of the inner tube (15).

8. The pipe spraying apparatus of claim 7, wherein: The outer side of the end of the center tube (11) is equipped with the reinforcing ring (18), and the outer tube (14) passes through the reinforcing ring (18).

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