Spraying device for inner surface of metal pipeline

Abstract

The utility model discloses a metal pipeline inner surface spraying device, which relates to the technical field of building construction material spraying and comprises a device shell, a self-sealing component, a spraying component, a rotating component and a supporting component. A storage bin is arranged in the device shell, the self-sealing assembly is used for feeding and self-sealing of the storage bin, the spraying assembly is installed on the device shell and used for spraying spraying raw materials in the storage bin to the inner surface of a metal pipeline, the rotating assembly is used for controlling the spraying assembly to achieve rotating spraying, and the supporting assembly is arranged on the outer side of the device shell. The support is used for movably supporting the whole device in the metal pipeline; the self-sealing component is arranged, raw materials can be injected by inserting the injection pipe, the storage bin can be self-sealed after the injection pipe is pulled out, the raw materials are prevented from leaking, and operation is simple, fast and convenient. And the supporting assembly is arranged, by adjusting the supporting size of the supporting assembly, the whole device can be supported in various building pipelines with different diameters, and the application range of the device is widened.

Description

Technical Field

[0001] This utility model relates to the field of building construction material spraying technology, and in particular to a spraying device for the inner surface of metal pipes. Background Technology

[0002] Metal pipe inner surface spraying equipment is a device used for spraying coatings on the inner walls of metal pipes during building construction. It is mainly used in industries such as construction and municipal engineering for pipe inner wall corrosion protection, rust prevention, insulation, and fireproofing. This equipment can improve construction efficiency, ensure coating quality, reduce labor costs, and improve the construction environment.

[0003] However, existing technologies have the following drawbacks:

[0004] 1) The existing metal pipe inner surface spraying device is not equipped with a self-sealing component. Every time the spraying material needs to be added to the storage hopper, the storage hopper needs to be opened and the spraying material needs to be injected. The operation is complicated, and the material may splash during injection, which is not easy to clean.

[0005] 2) Existing metal pipe inner surface spraying equipment does not have supporting components that can be applied to building pipes of different diameters, resulting in a limited range of applicability of the metal pipe inner surface spraying equipment. Utility Model Content

[0006] The purpose of this invention is to provide a metal pipe inner surface spraying device to solve the problems existing in the prior art, which is convenient for adding spraying materials, has self-sealing performance, and can be used on the inner wall of different building pipes with a wide range of applications.

[0007] To achieve the above objectives, this utility model provides the following solution:

[0008] This utility model provides a metal pipe inner surface spraying device, including a device shell, a self-sealing component, a spraying component, a rotating component, and a supporting component; the device shell has a storage bin inside, the self-sealing component is used for feeding and self-sealing the storage bin, the spraying component is installed on the device shell and is used to spray the spraying material in the storage bin onto the inner surface of the metal pipe, the rotating component is used to control the spraying component to achieve rotational spraying, and the supporting component is located on the outside of the device shell and is used to move and support the entire device inside the metal pipe.

[0009] Preferably, the self-sealing assembly includes a sealing tube, a fixing plate, a limiting tube, a spring, a limiting post, and a sealing plate. The sealing tube is disposed on the outer shell of the device near the storage hopper and is integrally formed with the outer shell of the device. The outer end of the sealing tube is provided with a sealing cap, and its internal channel communicates with the storage hopper. The fixing plate is disposed between the sealing tube and the storage hopper, and the fixing plate has a flow hole. The limiting tube is disposed inside the sealing tube and its inner end is connected to the fixing plate. The spring is disposed inside the limiting tube. The outer end of the limiting post is connected to the sealing plate, and the inner end of the limiting post is connected to a slider. The slider is slidably connected inside the limiting tube. The spring is disposed between the slider and the fixing plate. The sealing plate is disposed inside the sealing cap, and the sealing plate is provided with a connecting tube that passes through the sealing cap and extends outside the sealing tube. The wall of the connecting tube is provided with an injection hole.

[0010] Preferably, the spraying assembly includes a water pump and a spray pipe. The water pump is disposed inside the housing of the device and connected to the storage bin. The inner end of the spray pipe is connected to the water pump and rotatably connected to the housing of the device. The other end of the spray pipe extends out of the housing of the device and is connected to a nozzle. The spray pipe is rotated by the rotating assembly to achieve rotary spraying.

[0011] Preferably, the water pump is connected to the storage silo via a hose.

[0012] Preferably, the inner end of the nozzle is rotatably connected to a rotating groove provided inside the housing of the device.

[0013] Preferably, the rotating assembly includes a toothed groove, a gear, and a motor. The toothed groove is disposed on the nozzle, and the gear meshes with the toothed groove and is driven to rotate by the motor.

[0014] Preferably, the tooth groove, gear, and motor are all embedded in the mounting groove provided inside the housing of the device.

[0015] Preferably, the support assembly includes two support rods, rollers, slide rails, sliders, and an electric push rod. The two support rods are located on the same axis and are arranged in a figure-eight shape. The inner ends of the two support rods are rotatably connected to the outer side of the device housing via connecting shafts. The outer ends of the two support rods are rotatably connected to the rollers via connecting shafts. The slide rails are provided on the inner sides of the two support rods, and the sliders are slidably connected to the slide rails. The sliders on the two support rods are connected to each other via the electric push rod. The electric push rod is a bidirectional telescopic push rod with two telescopic rods, and the sliders are rotatably connected to the electric push rod.

[0016] Preferably, three sets of support components are distributed circumferentially on the outer surface of the device housing.

[0017] The present invention achieves the following technical advantages over the prior art:

[0018] 1) The metal pipe inner surface spraying device of this utility model is equipped with a self-sealing component. The raw material can be injected by inserting the injection tube, and the storage bin can be self-sealed after the injection tube is pulled out to prevent the raw material from leaking. The operation is simple, quick and convenient.

[0019] 2) The metal pipe inner surface spraying device of this utility model has a support component set on the outside of the device shell. By adjusting the support size of the support component, the entire device can be supported in building pipes of various diameters, thereby improving the applicability of the device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This utility model provides a three-dimensional view of the metal pipe inner surface spraying device. Figure 1 ;

[0022] Figure 2 This is a cross-sectional view of the metal pipe inner surface spraying device of this utility model. Figure 1 ;

[0023] Figure 3 This utility model provides a three-dimensional view of the metal pipe inner surface spraying device. Figure 2 ;

[0024] Figure 4 This is a cross-sectional view of the metal pipe inner surface spraying device of this utility model. Figure 2 ;

[0025] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0026] Figure 6 This is a cross-sectional view of the metal pipe inner surface spraying device of this utility model. Figure 3 ;

[0027] Figure 7 This is a cross-sectional view of the metal pipe inner surface spraying device of this utility model. Figure 4 ;

[0028] In the diagram: 1. Device housing; 2. Storage hopper; 3. Self-sealing assembly; 4. Spraying assembly; 5. Rotating assembly; 6. Support assembly; 7. Fixing plate; 8. Flow hole; 9. Limiting tube; 10. Spring; 11. Limiting post; 12. Sealing plate; 13. Connecting pipe; 14. Injection hole; 15. Water pump; 16. Hose; 17. Spray pipe; 18. Rotating groove; 19. Gear groove; 20. Motor; 21. Gear; 22. Support rod; 23. Roller; 24. Slide rail; 25. Slider; 26. Electric push rod; 27. Sealing tube. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] The purpose of this invention is to provide a metal pipe inner surface spraying device to solve the problems existing in the prior art.

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] The metal pipe inner surface spraying device in this embodiment, such as Figures 1-7 As shown, the device includes a housing 1, a self-sealing assembly 3, a spraying assembly 4, a rotating assembly 5, and a supporting assembly 6. The housing 1 has a storage bin 2 inside. The self-sealing assembly 3 is used for feeding and self-sealing the storage bin 2. The spraying assembly 4 is installed on the housing 1 and is used to spray the spraying material in the storage bin 2 onto the inner surface of the metal pipe. The rotating assembly 5 is used to control the spraying assembly 4 to achieve rotational spraying. The supporting assembly 6 is located on the outside of the housing 1 and is used to move and support the entire device inside the metal pipe.

[0033] In this specific embodiment, the self-sealing assembly 3 includes a sealing tube 27, a fixing plate 7, a limiting tube 9, a spring 10, a limiting post 11, and a sealing plate 12. The sealing tube 27 is disposed on the outer shell 1 of the device near the storage bin 2 and is integrally formed with the outer shell 1. The outer end of the sealing tube 27 is provided with a sealing cap and its internal channel is connected to the storage bin 2. The fixing plate 7 is disposed between the sealing tube 27 and the storage bin 2 and has a flow hole 8. The limiting tube 9 is disposed inside the sealing tube 27 and its inner end is connected to the fixing plate 7. The spring 10 is disposed inside the limiting tube 9. The outer end of the limiting post 11 is connected to the sealing plate 12, and the inner end of the limiting post 11 is connected to the slider 25. The slider 25 is slidably connected inside the limiting tube 9. The spring 10 is disposed between the slider 25 and the fixing plate 7. The sealing plate 12 is disposed inside the sealing cap and has a connecting tube 13 that passes through the sealing cap and extends outside the sealing tube 27. The wall of the connecting tube 13 is provided with an injection hole 14. When it is necessary to inject the spraying material into the storage bin 2, the injection pipe is connected to the pressing connection pipe 13, and the injection hole 14 is slid into the sealing pipe 27. The spraying material flows into the storage bin 2 through the injection hole 14 and the flow hole 8 to complete the injection. After the injection pipe is pulled out, the spring 10 pushes up the limiting post 11 so that the sealing plate 12 seals the storage bin 2, forming a self-sealing of the storage bin 2.

[0034] In this specific embodiment, the spraying assembly 4 includes a water pump 15 and a spray pipe 17. The water pump 15 is disposed inside the device housing 1 and connected to the storage bin 2 through a hose 16. The inner end of the spray pipe 17 is connected to the water pump 15 and is rotatably connected to the rotating groove 18 disposed inside the device housing 1. The other end of the spray pipe 17 extends out of the device housing 1 and is connected to a nozzle. The spray pipe 17 is rotated by the rotating assembly 5 to achieve rotary spraying.

[0035] In this specific embodiment, the rotating component 5 includes a toothed groove 19, a gear 21, and a motor 20. The toothed groove 19 is disposed on the nozzle 17, and the gear 21 meshes with the toothed groove 19 and is driven to rotate by the motor 20. Starting the motor 20 causes the gear 21 to rotate, which in turn drives the nozzle 17 with the toothed groove 19 to rotate, so that the coating material is evenly sprayed on the inner surface of the pipe. The spraying force also pushes the metal pipe inner surface spraying device to move within the pipe, so that the entire inner surface of the pipe can be sprayed.

[0036] In this specific embodiment, the tooth groove 19, the gear 21 and the motor 20 are all embedded in the mounting groove provided inside the device housing 1.

[0037] In this specific embodiment, three sets of support components 6 are distributed circumferentially around the outer casing 1 of the device. The specific number of these components can be determined according to the working conditions. Each support component 6 includes two support rods 22, rollers 23, slide rails 24, sliders 25, and an electric push rod 26. The two support rods 22 are located on the same axis and are arranged in a V-shape. The inner ends of the two support rods 22 are rotatably connected to the outer side of the outer casing 1 via connecting shafts. The outer ends of the two support rods 22 are rotatably connected to rollers 23 via connecting shafts. Slide rails 24 are provided on the inner sides of the two support rods 22, and sliders 25 are slidably connected to the slide rails 24. The sliders 25 on the two support rods 22 are connected to each other via an electric push rod 26. The electric push rod 26 is a bidirectional telescopic push rod with two telescopic rods, and the sliders 25 are rotatably connected to the electric push rod 26. The electric push rod 26 pushes the sliders 25 to slide within the slide rails 24, thereby causing the support rods 22 to rotate and the rollers 23 to press tightly against the inner wall of the pipe. This allows the metal pipe inner surface spraying device to be supported within pipes of different diameters.

[0038] It should be noted that all electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer. The specific implementation of this disclosure omits detailed descriptions of known functions and components. To ensure device compatibility, the operating methods used are consistent with the parameters of commercially available instruments.

[0039] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A spraying device for the inner surface of a metal pipe, characterized in that: The device includes a housing, a self-sealing assembly, a spraying assembly, a rotating assembly, and a supporting assembly. The housing contains a storage hopper. The self-sealing assembly is used for feeding and self-sealing the storage hopper. The spraying assembly is mounted on the housing and is used to spray the coating material from the storage hopper onto the inner surface of a metal pipe. The rotating assembly controls the spraying assembly to achieve rotational spraying. The supporting assembly is located on the outside of the housing and is used to move and support the entire device within the metal pipe.

2. The metal pipe inner surface spraying device according to claim 1, characterized in that: The self-sealing assembly includes a sealing tube, a fixing plate, a limiting tube, a spring, a limiting post, and a sealing plate. The sealing tube is disposed on the outer shell of the device near the storage hopper and is integrally formed with the outer shell of the device. The outer end of the sealing tube is provided with a sealing cap, and its internal channel communicates with the storage hopper. The fixing plate is disposed between the sealing tube and the storage hopper, and the fixing plate has a flow hole. The limiting tube is disposed inside the sealing tube and its inner end is connected to the fixing plate. The spring is disposed inside the limiting tube. The outer end of the limiting post is connected to the sealing plate, and the inner end of the limiting post is connected to a slider. The slider is slidably connected inside the limiting tube. The spring is disposed between the slider and the fixing plate. The sealing plate is disposed inside the sealing cap, and the sealing plate is provided with a connecting tube that passes through the sealing cap and extends outside the sealing tube. The wall of the connecting tube is provided with an injection hole.

3. The metal pipe inner surface spraying device according to claim 1, characterized in that: The spraying assembly includes a water pump and a spray pipe. The water pump is located inside the housing of the device and is connected to the storage bin. The inner end of the spray pipe is connected to the water pump and is rotatably connected to the housing of the device. The other end of the spray pipe extends out of the housing of the device and is connected to a nozzle. The spray pipe is rotated by the rotating assembly to achieve rotary spraying.

4. The metal pipe inner surface spraying device according to claim 3, characterized in that: The water pump is connected to the storage silo via a hose.

5. The metal pipe inner surface spraying device according to claim 3, characterized in that: The inner end of the nozzle is rotatably connected to a rotating groove provided inside the housing of the device.

6. The metal pipe inner surface spraying device according to claim 3, characterized in that: The rotating assembly includes a toothed groove, a gear, and a motor. The toothed groove is disposed on the nozzle, and the gear meshes with the toothed groove and is driven to rotate by the motor.

7. The metal pipe inner surface spraying device according to claim 6, characterized in that: The toothed groove, gear, and motor are all embedded in the mounting groove provided inside the housing of the device.

8. The metal pipe inner surface spraying device according to claim 1, characterized in that: The support assembly includes two support rods, rollers, slide rails, sliders, and an electric push rod. The two support rods are located on the same axis and are arranged in a figure-eight shape. The inner ends of the two support rods are rotatably connected to the outer side of the device housing via connecting shafts. The outer ends of the two support rods are rotatably connected to the rollers via connecting shafts. The slide rails are provided on the inner sides of the two support rods, and the sliders are slidably connected to the slide rails. The sliders on the two support rods are connected to each other via the electric push rod. The electric push rod is a bidirectional telescopic push rod with two telescopic rods, and the sliders are rotatably connected to the electric push rod.

9. The metal pipe inner surface spraying device according to claim 1, characterized in that: The device housing has three sets of support components distributed circumferentially on its outer surface.

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