Epoxy spraying device for inner wall of steel pipe

Abstract

The utility model discloses an epoxy spraying device for the inner wall of a steel pipe. The epoxy spraying device comprises an atomizing nozzle, the spraying holes are annularly formed in the outer surface of the spraying head and communicate with the atomizing spraying head; one end of the feeding hose is fixedly communicated with the atomizing nozzle, and the other end of the feeding hose is communicated with an external high-pressure airless sprayer; the bearing block is fixedly mounted on one end surface of the atomizing nozzle; the overturning plates are symmetrically arranged on the outer surface of the bearing block; the roller is arranged on one end surface of the turnover plate; one end of the elastic piece is fixedly connected with the outer surface of the bearing block, and the other end of the elastic piece is fixedly connected with the outer surface of the overturning plate; under the action of the atomization spray head, the spray hole, the feeding hose and the high-pressure airless sprayer, epoxy spraying can be conducted on the inner wall face of the steel pipe, compared with manual brushing of workers, spraying of epoxy paint can be more uniform, and meanwhile the spraying efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of steel pipe, specifically a steel pipe inner wall epoxy spraying device. BACKGROUND

[0002] Steel pipe is a steel material with hollow section, whose length is much greater than its diameter or circumference. According to the section shape, it is divided into round, square, rectangular and special-shaped steel pipes; according to the material, it is divided into carbon structural steel pipe, low alloy structural steel pipe, alloy steel pipe and composite steel pipe; according to the use, it is divided into pipes for conveying, engineering structures, heat engineering equipment, petroleum and chemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipe and welded steel pipe, wherein the seamless steel pipe is further divided into hot-rolled and cold-rolled (pulled) two kinds, and the welded steel pipe is further divided into straight seam welded steel pipe and spiral seam welded steel pipe.

[0003] The existing round steel pipe is generally manually brushed by the staff when the inner wall surface of the steel pipe is epoxy sprayed to play a rust-proof role, however, the staff manually brushes, the efficiency is low, and the uneven brushing is easy to occur. SUMMARY

[0004] To solve the above problems, that is, to solve the problems raised in the above background technology, the utility model provides a steel pipe inner wall epoxy spraying device, which comprises;

[0005] Atomizing nozzle;

[0006] Spray hole, a plurality of, annularly arranged on the outer surface of the spray head, and all in communication with the atomizing nozzle;

[0007] Supply hose, one end of which is fixedly communicated with the atomizing nozzle, and the other end of which is communicated with an external high-pressure airless spraying machine;

[0008] Bearing block, fixedly installed on one end face of the atomizing nozzle;

[0009] Turnover plate, symmetrically arranged on the outer surface of the bearing block;

[0010] Roller, arranged on one end face of the turnover plate;

[0011] Elastic member, one end of which is fixedly connected with the outer surface of the bearing block, and the other end of which is fixedly connected with the outer surface of the turnover plate;

[0012] Bearing device, arranged on one end face of the atomizing nozzle, for bearing the supply hose.

[0013] Preferably, the bearing device comprises;

[0014] A fixing tube is sleeved on the outside of the feeding hose, and one end is threaded to one end face of the atomizing nozzle;

[0015] An annular component is fitted onto the outer surface of the fixed tube;

[0016] Two pairs of fixing blocks are fixedly installed on one end face of the annular component;

[0017] Bolts are installed on the fixing block.

[0018] Preferably, one end of the flip plate is hinged to the outer surface of the support block.

[0019] Preferably, the elastic element is a compression spring.

[0020] The beneficial technical effects of this utility model are as follows: under the action of atomizing nozzle, spray hole, feeding hose and high pressure airless sprayer, epoxy spraying can be performed on the inner wall surface of steel pipe. Compared with manual brushing by workers, the epoxy coating can be sprayed more evenly and the spraying efficiency can be improved.

[0021] Meanwhile, under the action of the bearing block, flip plate, roller, elastic element, ring element, fixing block, fixing pipe and bolt, the atomizing nozzle and the material supply hose can be supported to prevent them from contacting the inner wall of the steel pipe, so as not to affect the quality of spraying and bring convenience to people. Attached Figure Description

[0022] Figure 1 A schematic diagram of the front view structure of this utility model is shown.

[0023] The attached diagram includes the following reference numerals: 1. Atomizing nozzle; 2. Spray hole; 3. Feed hose; 4. Support block; 5. Tilting plate; 6. Roller; 7. Elastic element; 8. Fixing pipe; 9. Ring element; 10. Fixing block; 11. Bolt. Detailed Implementation

[0024] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0025] This utility model proposes an epoxy spraying device for the inner wall of a steel pipe, comprising:

[0026] Atomizing nozzle 1;

[0027] The nozzles 2, in a number of them, are arranged in a ring on the outer surface of the nozzle 1 and are all connected to the atomizing nozzle 1.

[0028] The material supply hose 3 is fixedly connected at one end to the atomizing nozzle 1 and at the other end to the external high-pressure airless sprayer.

[0029] When spraying the inner wall of the steel pipe, the atomizing nozzle 1 is first placed inside the steel pipe. At the same time, the external high-pressure airless sprayer can deliver epoxy coating into the supply hose 3. At this time, the atomizing nozzle 1 atomizes the epoxy coating in the supply hose 3 and sprays it out from the spray hole 2, so that the atomized epoxy coating is sprayed onto the inner wall of the steel pipe.

[0030] The support block 4 is fixedly installed on one end face of the atomizing nozzle 1;

[0031] The flip plate 5 is symmetrically arranged on the outer surface of the support block 4;

[0032] Roller 6 is located on one end face of the flip plate 5;

[0033] The elastic element 7 is fixedly connected at one end to the outer surface of the bearing block 4 and at the other end to the outer surface of the flip plate 5;

[0034] The elastic element 7 can apply a force to the flip plate 5, causing the flip plate 5 to drive the roller 6 to move, so that the roller 6 contacts the inner wall of the steel pipe. At this time, under the action of the roller 6, the flip plate 5, the elastic element 7 and the bearing block 4, the atomizing nozzle 1 can be supported, preventing the atomizing nozzle 1 from contacting the inner wall of the steel pipe and affecting the spraying quality.

[0035] The supporting device is located on one end face of the atomizing nozzle 1 and is used to support the feeding hose 3.

[0036] Specifically, the supporting device includes;

[0037] The fixed tube 8 is sleeved on the outside of the feed hose 3, and one end is threaded to one end face of the atomizing nozzle 1;

[0038] An annular component 9 is fitted onto the outer surface of the fixed tube 8;

[0039] Two pairs of fixing blocks 10 are fixedly installed on one end face of the annular component 9;

[0040] Bolt 11 is installed on the fixing block 10;

[0041] When the operator rotates bolt 11, one end of bolt 11 can contact the outer surface of the steel pipe, which can fix the annular part 9 to one end of the steel pipe. At the same time, pushing the fixing pipe 8 can move the atomizing nozzle 1 inside the steel pipe, so that it can spray the inner wall of the steel pipe evenly. Meanwhile, the fixing pipe 8 can support the feeding hose 3 and prevent the feeding hose 3 from collapsing and its outer surface from contacting the inner wall of the steel pipe, which would affect the spraying quality.

[0042] Specifically, one end of the flip plate 5 is hinged to the outer surface of the support block 4.

[0043] Specifically, the elastic element 7 is a compression spring.

[0044] Working principle: First, the operator places the bearing block 4, the tilting plate 5, the roller 6, and the atomizing nozzle 1 into the steel pipe to be sprayed. At this time, the elastic element 7 applies a force to the tilting plate 5, causing the tilting plate 5 to rotate the roller 6, so that the outer surface of the roller 6 contacts the inner wall of the steel pipe. At the same time, one end of the annular element 9 is brought into contact with one end of the steel pipe. Then, the two pairs of bolts 11 are rotated, so that one end of the bolts 11 contacts the outer surface of the steel pipe, fixing the annular element 9 and the steel pipe relatively. At this time, the external high-pressure airless system is activated. The spraying machine, an external high-pressure airless sprayer, delivers the epoxy coating to be sprayed through a feeding hose 3 to an atomizing nozzle 1. The atomizing nozzle 1 then atomizes the epoxy coating in the feeding hose 3 and sprays it out through nozzle 2, coating the inner wall of the steel pipe. The operator then pushes the fixed pipe 8, moving the atomizing nozzle 1, the support block 4, and a pair of rollers 6 inside the steel pipe. This ensures that the atomized epoxy coating sprayed from nozzle 2 can evenly coat the inner wall of the steel pipe, providing convenience.

[0045] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0046] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0049] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A steel pipe inner wall epoxy spraying device characterized by, The utility model relates to a high-pressure airless spraying machine's bearing device and bearing device of atomizing nozzle, including; Atomizing nozzle (1); Spray hole (2), a plurality of, annularly set up on the outer surface of atomizing nozzle (1), and all with atomizing nozzle (1) intercommunication; Supply hose (3), one end with atomizing nozzle (1) fixed intercommunication, the other end with outside high pressure airless spraying machine intercommunication; Bearing block (4), fixed mounting on one end surface of atomizing nozzle (1); Turnover plate (5), symmetry sets up on the outer surface of bearing block (4); Roller (6), set up on one end surface of turnover plate (5); Elastic part (7), one end with the outer surface of bearing block (4) fixed connection, the other end with the outer surface of turnover plate (5) fixed connection; Bearing device, set up on one end surface of atomizing nozzle (1), is used for bearing to supply hose (3).

2. A device for spraying an epoxy coating on the inner wall of a steel pipe according to claim 1, characterized in that, The utility model relates to a high-pressure airless spraying machine's bearing device and bearing device of atomizing nozzle, including; Fixed tube (8), the outside of supply hose (3) is covered and is connected with one end surface of atomizing nozzle (1) screw thread in one end; Annular part (9), cover and set up on the outer surface of fixed tube (8); Fixed block (10), two pairs, all fixed mounting on one end surface of annular part (9); Bolt (11), set up on fixed block (10).

3. The apparatus according to claim 1, wherein One end of turnover plate (5) with the outer surface of bearing block (4) articulates.

4. The apparatus for epoxy spraying the inner wall of a steel pipe according to claim 1, wherein The utility model relates to a high-pressure airless spraying machine's bearing device and bearing device of atomizing nozzle, including; Elastic part (7) is compression spring.

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