Spray head for spraying special-shaped pipeline

Abstract

The utility model relates to the technical field of spray heads, in particular to a spray head for spraying a special-shaped pipeline, which comprises an air motor and a driving shaft in the air motor, the driving shaft is of a hollow structure, a conveying pipe is arranged in the driving shaft in a penetrating manner, a conical head is arranged at one end of the conveying pipe, a plurality of groups of first micro holes are arranged outside the conical head, and a plurality of groups of second micro holes are arranged outside the conical head. A conical cover is detachably connected to the outer portion of the driving shaft, a plurality of sets of second micro holes are formed in the outer portion of the conical cover, the conical cover is made to rotate at a high speed through a controllable high-speed rotating air motor, uniform atomization of paint is facilitated, in addition, accurate second micro hole machining and design are carried out on the conical cover, and the machining efficiency is improved. The spraying effect is more uniform and attractive; paint is conveyed through the driving shaft, the conical cover is of a sealed structure, and the problem of paint leakage of the open conical cover is solved. According to the utility model, secondary atomization is carried out on high-viscosity paint by adopting air-assisted atomization, so that the uniformity and the appearance state of a final paint film are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a nozzle technical field especially a nozzle for spraying special-shaped pipeline. BACKGROUND

[0002] Chemical pipeline is generally used for conveying various fluid medium, but part fluid medium is corrosive to pipeline interior, causes pipeline inner wall corrosion and damage, usually needs to carry out the anticorrosive treatment to the pipeline interior to the expected service life of the pipeline is prolonged. But because part chemical pipeline needs to cross various topography and bypass various devices, the design special-shaped pipeline is more, thereby needs to spray the equipment to the interior of the pipeline is sprayed anticorrosive paint.

[0003] And in order to prevent the generation of pinhole and other defects in the coating, diluent cannot be added to reduce the viscosity, and if ordinary spin coating equipment is used for spraying, there is a problem of poor atomization. SUMMARY

[0004] In view of the technical problems in the background art, the utility model provides a nozzle for spraying special-shaped pipeline.

[0005] The utility model adopts the technical scheme: a nozzle for spraying special-shaped pipeline, including air motor and drive shaft in air motor, the drive shaft is hollow structure, the drive shaft is equipped with the conveying pipe, one end of the conveying pipe is equipped with the conical head, the outside of the conical head is equipped with a plurality of first micro -type hole, the outside of the drive shaft is detachably connected with conical cover, the outside of the conical cover is equipped with a plurality of second micro -type hole, the outside of the air motor is still fixedly connected with the air inlet pipe, one end of the air inlet pipe extends to the drive shaft.

[0006] In one embodiment, the outside of the conveying pipe is fixedly connected with a hose.

[0007] In one embodiment, the conical cover is threadedly connected with the drive shaft.

[0008] In one embodiment, the first micro -type hole and the second micro -type are helical.

[0009] In one embodiment, the outside of the conveying pipe is fixedly connected with a hose.

[0010] In one embodiment, the outside of the conical cover is provided with a corrosion -resistant coating.

[0011] In one embodiment, the outside of the air motor is fixedly connected with a support.

[0012] The utility model discloses an advantageous effect is: compared with prior art, in the utility model, utilize controllable high -speed rotation air motor to make the high -speed rotation of conical cover, be favorable to the uniform atomization of paint, in addition to the accurate second micro -hole processing and design of conical cover, make the spraying effect more uniform and beautiful, the delivery of paint is carried out through the drive shaft, and the conical cover is the sealed structure, solves the problem of paint dripping of the open conical cover, the delivery of auxiliary air is carried out through the cooperation of drive shaft and air inlet pipe, and the paint is atomized secondly, solve the spraying problem of high -performance high -viscosity paint, the utility model discloses air -assisted atomization carries out the secondary atomization of high -viscosity paint, greatly improves the final paint film uniformity and appearance state. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structural schematic diagram of the utility model;

[0014] Figure 2 It is the structural schematic diagram of air motor in the utility model Figure One ;

[0015] Figure 3 It is the structural schematic diagram of air motor in the utility model Figure Two ;

[0016] Figure 4 It is Figure 3 the enlarged structural schematic diagram of A area in the utility model;

[0017] Figure 5 It is the sectional structure schematic diagram of drive shaft in the utility model.

[0018] Marked as in the drawing: 1, air motor;2, drive shaft;3, conical cover;4, air inlet pipe;5, delivery pipe;6, hose;7, conical head;8, first micro -hole;9, second micro -hole. DETAILED DESCRIPTION

[0019] In the description of the utility model, need explanation, the orientation or position relation that the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal" indicate is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element referred to must have a particular orientation, with particular orientation configuration and operation, therefore can not be understood as the limitation of the utility model.

[0020] In the description of the utility model, it is necessary to explain, unless there is definite stipulation and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be direct connection, also can be indirectly connected through intermediate medium, can be two elements inside communication, for ordinary skilled person in the art, the above-mentioned term can be understood in the utility model with concrete meaning according to specific circumstances.

[0021] The following will be described in conjunction with the accompanying Figures 1-5 Further illustrate the utility model.

[0022] In order to solve the problems in the background art, the present application proposes the following technical scheme: a special-shaped pipeline spraying nozzle, comprising an air motor 1 and a drive shaft 2 in the air motor 1, the air motor 1 is fixedly connected with a support outside, the drive shaft 2 is a hollow structure, a conveying pipe 5 is arranged through the drive shaft 2, one end of the conveying pipe 5 is provided with a tapered head 7, a plurality of first micro-holes 8 are arranged outside the tapered head 7, the drive shaft 2 is detachably connected with a tapered cover 3 outside, the tapered cover 3 is provided with a corrosion-resistant coating outside, a plurality of second micro-holes 9 are arranged outside the tapered cover 3, and the first micro-holes 8 and the second micro-holes 9 are spiral.

[0023] Among them, the controllable high-speed rotating air motor 1 makes the tapered cover 3 rotate at high speed, which is beneficial to the uniform atomization of the paint, and the accurate second micro-hole 9 processing and design of the tapered cover 3 make the spraying effect more uniform and beautiful; the paint is conveyed through the drive shaft 2, the tapered cover 3 is a sealed structure, and the problem of paint dripping of the open tapered cover 3 is solved.

[0024] In the embodiment, an air inlet pipe 4 is also fixedly connected outside the air motor 1, one end of the air inlet pipe 4 extends into the drive shaft 2, a hose 6 is fixedly connected outside the conveying pipe 5, and the drive shaft 2 and the air inlet pipe 4 are matched to assist the conveying of air, the paint is atomized twice, and the problem of spraying of high-performance high-viscosity paint is solved.

[0025] In order for those skilled in the art to fully understand the technical scheme, the use method of the embodiment is as follows:

[0026] In the embodiment, the controllable high-speed rotating air motor 1 makes the tapered cover 3 rotate at high speed, which is beneficial to the uniform atomization of the paint, and the accurate second micro-hole 9 processing and design of the tapered cover 3 make the spraying effect more uniform and beautiful; the paint is conveyed through the drive shaft 2, the tapered cover 3 is a sealed structure, and the problem of paint dripping of the open tapered cover 3 is solved.

[0027] The drive shaft 2 and the air inlet pipe 4 are matched to assist the conveying of air, the paint is atomized twice, and the problem of spraying of high-performance high-viscosity paint is solved.

[0028] In addition, the electric control system can be arranged to control the supply amount of the paint, and the paint accumulation and sagging phenomenon caused by uneven supply can be solved; the high-viscosity paint is secondarily atomized by air-assisted atomization, and the final paint film uniformity and appearance state are greatly improved.

[0029] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein, and the contents not described in detail in the description belong to the prior art known to the person skilled in the art.

[0030] Although the embodiments of the utility model have been shown and described, the scope of the utility model is defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A spray nozzle for spraying irregularly shaped pipes, characterized in that, The device includes an air motor (1) and a drive shaft (2) in the air motor (1). The drive shaft (2) is a hollow structure. A delivery pipe (5) is provided through the drive shaft (2). One end of the delivery pipe (5) is provided with a conical head (7). The outside of the conical head (7) is provided with multiple sets of first micro holes (8). A conical cover (3) is detachably connected to the outside of the drive shaft (2). The outside of the conical cover (3) is provided with multiple sets of second micro holes (9). An air intake pipe (4) is also fixedly connected to the outside of the air motor (1). One end of the air intake pipe (4) extends into the drive shaft (2).

2. The spray nozzle for spraying irregularly shaped pipes according to claim 1, characterized in that, The delivery pipe (5) is externally fixedly connected to a flexible hose (6).

3. The spray nozzle for spraying irregularly shaped pipes according to claim 1, characterized in that, The conical cover (3) is threadedly connected to the drive shaft (2).

4. The spray nozzle for spraying irregularly shaped pipes according to claim 1, characterized in that, The first micro-hole (8) and the second micro-hole are spiral-shaped.

5. A spray nozzle for spraying irregularly shaped pipes according to claim 4, characterized in that, The delivery pipe (5) is externally fixedly connected to a flexible hose (6).

6. A spray nozzle for spraying irregularly shaped pipes according to claim 5, characterized in that, The conical cover (3) is coated with a corrosion-resistant coating.

7. A spray nozzle for spraying irregularly shaped pipes according to claim 6, characterized in that, The air motor (1) is externally fixedly connected to a bracket.

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