KR101378978B1 - Blasting nozzle apparatus - Google Patents

Abstract

A blast nozzle apparatus is disclosed.
The blasting nozzle apparatus according to the present invention includes a hose to which the abrasive is supplied; A blasting nozzle including at least one fixing protrusion inserted into the inner diameter of the hose and an abrasive discharge portion having an outer diameter smaller than that of the fixing protrusion; An illumination part in close contact with an end of the hose and disposed on an outer circumferential surface of the abrasive discharge part; And it may include a power supply for supplying power to the lighting unit.

Description

 Blasting nozzle unit {BLASTING NOZZLE APPARATUS}

The present invention relates to a blasting nozzle apparatus, and more particularly, to a blasting nozzle apparatus that can ensure visibility by shining light on the working area of the vessel, the blasting work object of the building or the object made by welding.

For ships and structures made by welding, the surface of the welded area after welding can be treated.

For example, after loading between blocks in shipbuilding, preprocessing work is carried out in a docked or quay-covered area.

 Coating preprocessing work is usually done by a hydropower tool of grinding. In manual grinding work, work intensity is high and dust is generated so that worker avoids work.

Therefore, labor costs are rising for labor supply and demand. In addition, the quality of the preprocessing operation is limited by the hand tool operation, and dusts and sparks generate adverse effects on the surrounding work sites.

In addition, the abrasive blades of the grinder used in the manual grinding operation are consuming very much, resulting in a situation in which a consumable cost is continuously generated.

Currently, vacuum adsorption robot blasting technology has been developed and applied in the post-treatment process, or as disclosed in the patent literature, to form a cylindrical water film, dust and abrasives or spraying materials (e.g. sand, steel grit, aluminum oxide, garnet, etc.) There is a technique to remove dust generated during surface treatment as small pieces of water flow down with water.

However, the technique of the patent document is inconvenient to reuse the abrasive, especially when the blasting operation is required for the inner corner of the structure of the narrow and dark vessels, it is difficult to secure the visibility of the operator because it is difficult to secure visibility In particular, when the blasting work in a place where it is difficult to see, there is a problem that a high frequency of worker error can be connected to a safety accident.

In particular, the blasting operation in the shipbuilding industry is generally carried out by moving the ship building block into the shelter corresponding to the factory building.

The size of a block is usually a block of more than 10 meters in length and width, and there is a space called a shell inside the block.

Although there are some blocks with open ceilings, they are generally confined spaces and can enter the block through rounded spaces called access holes, accessible by each shell.

Since lighting is essential in the blasting work because the work is performed in a closed space, it is very difficult to change the lighting direction of the lighting installation or the work position corresponding to the work position by the following situations.

In other words, the blasting work is performed by mixing abrasives into the compressed air injected at high pressure and spraying them on the surface. To withstand the reaction force of the compressed air injected at high pressure, the operator must hold the hose and the blasting nozzle with both hands.

For this reason, in order to utilize the light, the worker must lift or attach it to the head directly, but when handling it, the hose handling becomes weak and when attaching to the head, the working area must be matched with the actual working area. There is a hassle. In addition, it is more difficult to install lighting in each shell.

Utility Model Registration No. 20-0432054

This embodiment operates with a power source of a detachable power supply detachably installed on a hose, and can illuminate the work area with a lighting unit disposed at the end of the hose while simultaneously irradiating light corresponding to the handling direction of the blasting nozzle. It is possible to provide a blasting nozzle apparatus that can perform the polishing operation more conveniently and efficiently, thereby improving productivity and economy.

According to an aspect of the invention, the hose is supplied with abrasive; A blasting nozzle including at least one fixing protrusion inserted into the inner diameter of the hose and an abrasive discharge portion having an outer diameter smaller than that of the fixing protrusion; An illumination part in close contact with an end of the hose and disposed on an outer circumferential surface of the abrasive discharge part; And a blasting nozzle device including a power supply for supplying power to the lighting unit may be provided.

In addition, the lighting unit and the power supply unit may be connected by a wire that can be attached by a connector having a socket and a plug.

The lighting unit may further include: a base frame coupled to a mounting fixing space formed by an inner circumferential surface of the end of the hose, a side surface of the fixing protrusion, and an outer circumferential surface of the abrasive discharge portion; A lamp module disposed in front of the base frame; A first cover frame having a rear screw portion coupled to the base frame to surround the lamp module, and a front screw portion provided at the front of the lamp module; And a second cover frame inserted into the abrasive discharge part of the blasting nozzle and screwed to the front screw part of the first cover frame.

In addition, the first cover frame and the second cover frame may be formed of a transparent material.

The lighting unit may further include a sealing part inserted into a fastening groove toward an inner circumferential surface of the second cover frame and in close contact with an outer surface of the abrasive discharge part, wherein the sealing part is elastically in close contact with the lamp module toward the base frame. While it may be formed of a porous synthetic resin material including a sponge to prevent the penetration of external dust.

The lamp module may further include a ring-shaped printed circuit board fitted to the abrasive discharge portion of the blasting nozzle; And at least one light emitting diode (LED) disposed along the circumferential direction of the printed circuit board.

The power supply unit may include a pair of holder housings which are mounted while wrapping the hoses corresponding to the shape of the hoses, and are rotated and detached based on a hinge part; A fastening part provided at an end portion overlapping with the holder housing; And it may include a charging battery installed inside the holder housing.

As described above, according to the blasting nozzle device according to the embodiment of the present invention, the inner shape of the complex block structure of the ship enables precise visibility as it can secure excellent visibility while illuminating a blasting target surface including a dark area. It has the advantage of being able to perform safe blasting operations.

In addition, the present embodiment can brighten the work area with the illumination unit disposed at the end of the hose and at the same time can irradiate light corresponding to the handling direction of the blasting nozzle, so that the polishing operation can be performed more conveniently and efficiently. Economics can be improved.

In addition, according to the present embodiment, as the means for supplying power to the lighting unit is used by attaching and detaching the power supply unit detachable from the hose, the charging battery of the power supply unit is easy to charge, and the maintenance and management are convenient.

In addition, in this embodiment, by disassembling and assembling the first cover frame and the second cover frame in a screw manner, it is possible to selectively replace only the parts where a lot of wear occurs, it is possible to increase the efficiency of maintenance and management costs have.

1 is a perspective view of a blasting nozzle apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged view of the power supply unit shown in FIG. 1.
FIG. 3 is a perspective view illustrating a method of removing the power supply unit shown in FIG. 2.
4 is a perspective view of the lighting unit coupled to the blasting nozzle shown in FIG.
5 is an exploded perspective view of the blasting nozzle and the lighting unit of FIG. 4.
6 is an assembled cross-sectional view of the blasting nozzle and the lighting unit of FIG. 4.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a perspective view of a blasting nozzle apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the present embodiment may include a hose 100, a blasting nozzle 200, an illumination unit 300, and a power supply unit 400.

The hose 100 may play a role of receiving an abrasive or abrasive such as sand, steel grit, garnet, and the like from a blasting supply device.

Here, the blasting supply device is a device for supplying and collecting the spraying material, and so may be any unit for spraying the spraying material supplied through the hose 100 through the blasting nozzle 200 to perform the blasting operation. It may not be limited.

The blasting nozzle 200 may be made of a conventional cemented carbide nozzle material.

The blasting nozzle 200 has a hollow structure, and has a plurality of fixing protrusions 210 inserted into the inner diameter of the hose 100 and a smaller outer diameter of the fixing protrusions 210, and the abrasive provided on the opposite side of the fixing protrusions 210. It may have a discharge portion 220 (see Fig. 6).

The lighting unit 300 may be disposed on the outer circumferential surface of the abrasive discharge unit 220 to be in close contact with the end of the hose 100.

The lighting unit 300 may be coupled to the circumference of the blasting nozzle 200 to brighten the blasting work area, and in this case, may serve to irradiate light corresponding to the handling direction of the blasting nozzle 200.

The power supply unit 400 is a kind of portable power source, and may serve to supply power to the lighting unit 300.

In particular, the lighting unit 300 and the power supply unit 400 may be connected or interrupted by an attachable wire 480 by a connector 450 having a socket and a plug.

In this embodiment, the connection or disconnection of the connector 450 itself may serve as a switch of the lighting unit 300, and further include a wire (480) or a switch (not shown) at a separate position, thereby providing the lighting unit 300. Can be configured to turn on / off.

FIG. 2 is an enlarged view of the power supply unit illustrated in FIG. 1, and FIG. 3 is a perspective view illustrating a method of removing the power supply unit illustrated in FIG. 2.

Referring to FIG. 2, the power supply unit 400 is mounted while wrapping the hose 100 corresponding to the shape of the hose 100, and rotated based on the hinge portion 410 to remove the holder housing ( 420, 430.

In addition, the power supply unit 400 may be provided with a fastening portion between the holder housings (420, 430) at the overlapping end between the holder housings (420, 430). For example, the fastening part may be a pair of elastic stepped portions 421 and 431 provided at ends of the holder housings 420 and 430. Meanwhile, although the stepped elastic steps 421 and 431 are exemplified as the fastening parts, the fastening parts are not limited thereto and may be provided as fastening parts as long as they can provide a fastening force between the holder housings 420 and 430.

Here, the holder housings 420 and 430 may be formed of a plastic or synthetic resin material, and the overlapping ends may have elastic restoring force due to the characteristics of the material.

At this time, the elastic stepped (421, 431) may be formed in a triangle shape that can ride over the sliding contact with each other at the overlapping end.

That is, in order to mount the power supply unit 400 on the outer circumferential surface of the hose 100 by the operator, when the power supply unit 400 is disposed to surround the hose 100, one side of the elastic step 421 is in sliding contact with each other. After passing over the inclined surface of the other elastic stepped 431, the elastic stepped 421 and 431 may be bound to each other by an elastic restoring force.

Then, when the operator pulls the end 422 of the holder housing 420 on the outside of the power supply 400, the elastic step (421, 431) is separated from each other, the power supply 400 as shown in FIG. It can be separated from the hose 100.

Referring to FIG. 3, at least one rechargeable battery 440 may be installed inside one or both of the holder housings 420 and 430.

In addition, the power supply unit 400 may be configured as a system that can be charged by placing in a cradle (cradle) for an external charger (not shown).

To this end, the power supply unit 400 is connected to the charging battery 440, the charging terminal (exposed to the outside of any one of the holder housing 420, 430 corresponding to the charging terminal of the cradle of the external charger (not shown) ( 450).

The power supply unit 400 may supply power toward the lighting unit to be described in detail below through the wire 480.

4 is a perspective view of a lighting unit coupled to the blasting nozzle shown in FIG. 1, and FIG. 5 is an exploded perspective view of the blasting nozzle and the lighting unit of FIG. 4.

4 or 5, the lighting unit 300 may include a base frame 310, a lighting module 320, a first cover frame 330, a second cover frame 340, and a sealing unit 350. Can be.

The base frame 310 may be coupled to the mounting fixing space 190 formed by the inner circumferential surface of the end of the hose 100 and the side surface of the fixing protrusion 210 of the blasting nozzle 200 and the outer circumferential surface of the abrasive discharge portion 220. have.

That is, the base frame 310 may be inserted into the mounting fixing space 190 and fixed by friction, such as an interference fit method, and when a force that overcomes friction in the opposite direction of the insertion direction is applied to the mounting fixing space ( 190).

In addition, the base frame 310 may have a ring-shaped structure that can be fitted to the abrasive discharge portion 220 of the blasting nozzle 200.

In addition, the base frame 310 is integrally formed with the fitting portion 311 to be fitted in the mounting fixing space 190, and has a screw portion 312 having a larger diameter than the fitting portion 311, such as a flange shape. .

In addition, the base frame 310 is a wire (not shown) drawn from the printed circuit board 321 of the lamp module 320 through the gap between the end side of the hose 100 and the side of the base frame 310 and the like. It may include a wire through hole 313 penetrated to the outside.

In addition, the lamp module 320 is disposed in front of the base frame 310, and serves to emit light required for the blasting work.

The lamp module 320 is arranged in a plurality of ring-shaped printed circuit board 321 to be fitted to the abrasive discharge portion 220 of the blasting nozzle 310, along the circumferential direction on the surface of the printed circuit board 321, That is, it may include a light emitting diode 322 (LED) disposed radially.

Here, the light emitting diodes 322 may be arranged on the printed circuit board 321 in the form of a chip LED.

That is, the light emitting diode 322 may show less power consumption than the brightness using the chip LED, and when configured to about 6 to 9 chip LED, it may emit light for a sufficient operating time required for the blasting operation.

The first cover frame 330 is a rear screw portion 331 provided behind the inner circumferential surface of the first cover frame 330 to be coupled to the screw portion 312 of the base frame 310 to surround the lamp module 320, the lamp module It may have a front threaded portion 332 provided in front of the inner circumferential surface of the first cover frame 330 toward the front of the (320).

6 is an assembled cross-sectional view of the blasting nozzle and the lighting unit of FIG. 4.

5 or 6, the second cover frame 340 may be fitted to the abrasive discharge part 220 of the blasting nozzle 200.

The second cover frame 340 is a screw fastening portion 342 screwed to the front threaded portion 332 of the first cover frame 330, and the light transmitting portion 344 integrally formed at the front position of the screw fastening portion 342. ) May be included.

Here, the first cover frame 330 and the second cover frame 340 has a hollow structure, and may be formed of a transparent material having low scratches and good light transmittance, such as polycarbonate (PC). In addition, the sealing unit 350 may also be formed of a transparent material.

For example, the light emitting diode 322 may be mostly irradiated to the blasting object through the light transmitting part 344, but light may also come out through the screw fastening part 342 made of a transparent material.

Wear-resistant film paper (not shown) may be further attached to an outer surface of the second cover frame 340, for example, an outer surface of the light transmitting part 344 of the second cover frame 340 to further improve wear resistance.

If the outer surface of the second cover frame 340 wears out during the blasting operation, and the light transmittance is significantly reduced, the operator may remove only the second cover frame 340 from the first cover frame 330 to remove the new product. By replacing with two cover frames (not shown), maintenance can be facilitated.

The sealing part 350 may be fitted into the fastening groove 341 toward the inner circumferential surface of the second cover frame 340 and may be in close contact with the outer surface of the abrasive discharge part 220.

In addition, the sealing unit 350 may be formed of a porous synthetic resin material including a sponge to close the lamp module 320 by elasticity toward the base frame 310 to prevent the ingress of dust.

This sealing portion 350 has the effect of providing a fixed force and a sealing force to the present embodiment at the same time.

Hereinafter, the operation of the present invention will be described.

Referring to FIG. 1, the worker mounts the power supply unit 400 to the hose 100 as if the hose 100 is wrapped in the power supply unit 400.

In addition, the socket and the plug of the connector 450 of the wire 480 are connected to each other, so that the power of the power supply unit 400 is applied toward the lighting unit 200.

In this case, as shown in FIG. 6, the light S is generated from the light emitting diode 322 of the lighting unit 200, and the light S is the first cover frame 330 or the second cover frame 340. ) To blast the object.

The operator handles the direction of the blasting nozzle 200 at various angles while holding the hose 100 and the blasting nozzle 200, and the light of the lighting unit 200 is irradiated to the blasting work object corresponding to the handled angle. It is possible to secure excellent visibility and to perform precise and safe blasting operations.

 The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: Hose
200: blasting nozzle
300:
400: Power supply

Claims (7)

A hose supplied with abrasive;
A blasting nozzle including at least one fixing protrusion inserted into the inner diameter of the hose and an abrasive discharge portion having an outer diameter smaller than that of the fixing protrusion;
An illumination part in close contact with an end of the hose and disposed on an outer circumferential surface of the abrasive discharge part; And
It includes a power supply for supplying power to the lighting unit,
The power supply unit,
A pair of holder housings mounted while wrapping the hoses corresponding to the shape of the hoses, and rotated with respect to the hinge portion to be detached;
A fastening part provided at an end portion overlapping with the holder housing; And
It includes a charging battery installed inside the holder housing
Blasting nozzle device.
The method of claim 1,
The lighting unit and the power supply unit,
Connected by an attachable wire by a connector having a socket and a plug
Blasting nozzle device.
A hose supplied with abrasive;
A blasting nozzle including at least one fixing protrusion inserted into the inner diameter of the hose and an abrasive discharge portion having an outer diameter smaller than that of the fixing protrusion;
An illumination part in close contact with an end of the hose and disposed on an outer circumferential surface of the abrasive discharge part; And
In the blasting nozzle device comprising a power supply for supplying power to the lighting unit,
The illumination unit includes:
A base frame coupled to a mounting fixing space formed by an inner circumferential surface of the end of the hose, a side surface of the fixing protrusion, and an outer circumferential surface of the abrasive discharge portion;
A lamp module disposed in front of the base frame;
A first cover frame having a rear screw portion coupled to the base frame to surround the lamp module, and a front screw portion provided at the front of the lamp module; And
A second cover frame fitted to the abrasive discharge part of the blasting nozzle and screwed to the front screw part of the first cover frame;
Containing
Blasting nozzle device.
The method of claim 3,
The first cover frame and the second cover frame is formed of a transparent material
Blasting nozzle device.
The method of claim 3,
The illumination unit includes:
Further comprising a sealing part fitted into the fastening groove toward the inner circumferential surface of the second cover frame and in close contact with the outer surface of the abrasive discharge part.
The sealing part is formed of a porous synthetic resin material including a sponge so as to prevent the ingress of dust while keeping the lamp module close to the base frame by elasticity.
Blasting nozzle device.
The method of claim 3,
The lamp module,
A ring-shaped printed circuit board fitted to the abrasive discharge portion of the blasting nozzle; And
At least one light emitting diode (LED) disposed along the circumferential direction of the printed circuit board
Blasting nozzle device.
delete

Images