KR102485455B1 - Nozzle assembly for spray - Google Patents

Abstract

A nozzle assembly for injection according to the present invention comprises: a main housing (110) supplied with a first fluid and a second fluid; a guide housing (120) inserted into and disposed in the main housing (110); a valve housing (130) assembled into the main housing (110) to pressurize and fix the guide housing (120) to the main housing (110); and a heat wire module (400) disposed on the main housing (110). The nozzle assembly for injection according to the present invention heats the second fluid through the heat wire module to readily perform injection and atomization at a low temperature and can heat the second fluid to a proper temperature.

Description

Spray nozzle assembly {NOZZLE ASSEMBLY FOR SPRAY}

The present invention relates to a spray nozzle assembly, and more particularly, to a spray nozzle assembly that mixes and discharges a first fluid, such as high-pressure compressed air, with a second fluid such as a disinfectant.

The injection nozzle assembly may be mounted on the injection device. In addition, the injection nozzle assembly may be coupled to the liquid medicine container. The nozzle assembly for spraying may be used to change liquids such as water, pesticides, and disinfectants stored in a liquid medicine container into fine particles and spray them.

The injection nozzle assembly is generally supplied with high-pressure compressed air, and the liquid stored in the liquid medicine container is pumped and sprayed through the injection nozzle assembly by a pressure difference generated in the process of discharging it.

A conventional nozzle assembly for spraying requires a rather complicated structure and a number of parts to implement the above spraying operation, and there was inconvenience in the process of producing it due to the complex structure.

Republic of Korea Patent Registration No. 10-0907182

An object of the present invention is to provide a spray nozzle assembly that mixes and discharges a first fluid, which is high-pressure compressed air, and a second fluid such as a disinfectant.

An object of the injection nozzle assembly according to the present invention is to provide a injection nozzle assembly capable of heating the second fluid to an appropriate temperature so as to facilitate injection and atomization even at a low temperature.

The present invention, the main housing 110 to which the first fluid and the second fluid is supplied; a guide housing 120 inserted into and disposed in the main housing 110; a valve housing 130 assembled to the main housing 110 and pressurizing and fixing the guide housing 120 to the main housing 110; and a hot wire module 400 disposed in the main housing 110, wherein the main housing 110 has a cylindrical shape, is formed at a rear end, and has a first inlet 111 into which the first fluid flows. ); a second inlet 112 formed on a side portion and through which the second fluid flows; a discharge port 113 formed at a front end and communicating with the first inlet 111 and the second inlet 112; a first connection passage 114 connecting the first inlet 111 and the outlet 113; and a second connection passage 115 connecting the second inlet 112 and the outlet 113, wherein the guide housing 120 is inserted into the outlet 113 and the second connection passage ( 115) and a guide passage 121 connecting the second fluid to the valve housing 130; a rear end 123 through which the guide passage 121 passes and inserted into the discharge port 113; a front end portion 122 formed through the guide passage 121 and inserted into the valve housing 130; a flange portion 125 disposed on the side of the rear end portion 123 and protruding outward in the radial direction; a large-diameter portion 127 disposed at a side of the front end portion 122 and spaced apart from the flange portion 125 in the longitudinal direction of the guide passage 121; a small diameter portion 128 extending from the large diameter portion 127 toward the front end portion 122 and having a smaller diameter than the large diameter portion 127; and a plurality of radial passages 126 penetrating the large diameter portion 127 and the small diameter portion 128 and arranged in parallel with the longitudinal direction of the guide passage 121, wherein the valve housing 130 includes , an inner space 131 in which the front end 122 of the guide housing 120 and the radiation passage 126 are inserted and located; a discharge hole 133 communicating with the inner space 131 and into which the front end 122 is inserted; and a discharge passage 132 communicating with the discharge hole 133 and mixing the first fluid supplied from the radiation passage 126 and the second fluid supplied through the guide passage 121,
The inner end surrounds the rear end of the guide housing 120, and the front end is supported by the flange portion 125 of the guide housing 120 and is seated when the guide housing 120 is inserted into the outlet 113 of the main housing 110. Including; sealing portion 140 in close contact with the groove 116,
The hot wire module 400 is disposed to surround the second inlet 112 of the main housing 110, and generates heat by applied power to heat the second inlet 112. to provide.

The injection nozzle assembly according to the present invention has an effect of discharging a mixture of a first fluid, which is high-pressure compressed air, and a second fluid, such as a disinfectant.

The injection nozzle assembly according to the present invention has an effect of heating the second fluid through a hot wire module to facilitate spraying and atomization even at a low temperature and heating the second fluid to an appropriate temperature.

The present invention has an effect of easily atomizing the chemical solution by using high-pressure air even when the external temperature is low by providing power to the heat plate of the chemical solution container to heat the second fluid.

1 is an exploded cross-sectional view of a spray nozzle assembly according to a first embodiment of the present invention.
2 is a combined cross-sectional view of a spray nozzle assembly according to a first embodiment of the present invention.
3 is a cross-sectional view of a main housing according to a first embodiment of the present invention, taken along line AA of FIG. 1 .
Figure 4 shows a guide housing according to a first embodiment of the present invention, a cross-sectional view taken along line BB of Figure 1.
5 is a use state diagram of the spray device for disinfection according to the first embodiment of the present invention.
FIG. 6 is a perspective view of a liquid medicine container and an injection device shown in FIG. 5;
7 is a use state diagram of a spray device for disinfection according to a second embodiment of the present invention.
FIG. 8 is a perspective view of a liquid medicine container and an injection device shown in FIG. 7;
9 is an exploded cross-sectional view of the injection nozzle assembly shown in FIG. 7 .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are presented to sufficiently convey the spirit of the present invention to those skilled in the art. The present invention may be embodied in other forms without being limited to only the embodiments presented herein. In the drawings, in order to clarify the present invention, illustration of parts irrelevant to the description may be omitted, and the size of components may be slightly exaggerated to aid understanding.

1 is an exploded cross-sectional view of a spray nozzle assembly according to a first embodiment of the present invention, FIG. 2 is a combined cross-sectional view of a spray nozzle assembly according to a first embodiment of the present invention, and FIG. Shows the main housing according to the embodiment, is a cross-sectional view taken along the line A-A in Figure 1, Figure 4 shows the guide housing according to the first embodiment of the present invention, is a cross-sectional view taken along the line B-B in Figure 1, Figure 5 is a use state diagram of the spray device for disinfection according to the first embodiment of the present invention, and FIG. 6 is a perspective view of the liquid medicine container and the spray device shown in FIG.

1 to 11, the injection nozzle assembly 100 according to an embodiment of the present invention includes a main housing 110 assembled to an injection device G, and a guide inserted into and assembled into the main housing 110. It includes a housing 120 and a valve housing 130 coupled to the main housing 110 and pressurizing the guide housing 120 to the main housing 110 when coupled to the main housing 110. can

The main housing 110 may be provided in a cylindrical shape. The main housing 110 may constitute a body of the injection nozzle assembly 100 . The main housing 110 has a first inlet 111 through which the first fluid flows in at the rear end, and a discharge port 113 through which the first fluid and the second fluid are mixed and discharged at the front end.

The first fluid may be high-pressure compressed air.

At the rear end of the main housing 110, high-pressure compressed air may flow into the first inlet 111.

The main housing 110 may have a second inlet 112 through which a second fluid flows into a side portion of the main housing 110 . The second fluid may be in a liquid state such as pesticide or disinfectant.

That is, the second fluid such as liquid disinfectant from the side of the main housing 110 may flow into the second inlet 112 .

The direction flowing in from the first inlet 111 and the direction flowing in from the second inlet 112 may be arranged to cross each other, and in this embodiment, they are arranged orthogonally.

The first inlet 111 and the outlet 113 are arranged in a line.

The first inlet 111 and the outlet 113 are disposed in a horizontal direction, and the second inlet 112 moves the second fluid from the lower side to the upper side. A liquid container T is connected to the second inlet 112 .

When the user pulls the handle (S) of the injection device (G), the first fluid, high-pressure compressed air, is supplied to the first inlet (111) of the main housing (110), and the built-in agent of the liquid container (T). A liquid such as a disinfectant, which is a two-fluid, may flow into the second inlet 112 of the main housing 110 due to a pressure difference.

Referring to FIGS. 1 and 2 , the main housing 110 may have a discharge port 113 formed at the front end portion 110a.

The outlet 113 of the main housing 110 is a space at the front end of the main housing 110, and the outlet 113 of the main housing 110 communicates with the first inlet 111 and the second inlet 112. .

The outlet 113 is a space provided at the front end of the main housing 110 and may be provided in a groove shape recessed from the front end 110a of the main housing 110 toward the rear end.

The guide housing 120 may be inserted into the outlet 113 of the main housing 110, and the valve housing 130 is coupled to the outlet 113 of the main housing 110.

At least a portion of the guide housing 120 may be inserted into the discharge port 113 .

The guide housing 120 may be formed with a plurality of radial passages 126 communicating with the first inlet 111 .

In addition, the guide housing 120 may have a guide passage 121 communicating with the second inlet 112 .

The guide passage 121 is disposed at the axial center C of the guide housing 120 , and the radiation passage 126 is disposed radially outside the guide passage 121 .

The guide housing 120 may divide the space of the discharge port 113 into two spaces by being inserted into the discharge port 113 of the main housing 110 .

Meanwhile, in the guide passage 121, the diameter of a part of the front end 122 is smaller than that of other parts, so that the second fluid supplied from the chemical container T causes a certain amount of swirl to guide the guide passage 121. can pass Accordingly, the second fluid discharged to the outside of the valve housing 130 may spread more widely.

That is, the discharge port 113 of the main housing 110 is provided in a shape of a recessed groove in a state in which the guide housing 120 is not coupled, as shown in FIG. 1 .

The outlet 113 of the main housing 110 is partitioned by the guide housing 120 in a state in which the guide housing 120 is coupled, as shown in FIG. 2, so that the outlet 113 of the main housing 110 has a first inlet ( 111) and a space communicating with the second inlet 112 may be separated.

Accordingly, the first fluid introduced through the first inlet 111 of the main housing 110 and introduced into the outlet 113 and the first fluid introduced through the second inlet 112 of the main housing 110 to the outlet 113 The second fluid introduced into the guide housing 120 may be mixed in the discharge passage 132 of the valve housing 130 without being mixed with each other in the outlet 113 of the main housing 110 by the guide housing 120 .

Thereafter, the first fluid and the second fluid may be discharged to the outside of the injection nozzle assembly 100 in a mixed state in the discharge passage 132 .

A part of the outer circumferential surface of the valve housing 130 is screwed to the outlet 113, and a part of the inner circumferential surface may press the guide housing 120. Looking more specifically, the valve housing 130 has a screw thread 135 formed on the outer circumferential surface of the rear end, and the screw thread 135 of the valve housing 130 is formed in the outlet 113 of the main housing 110. The valve housing 130 may be coupled to the main housing 110 by screwing (not shown).

On the other hand, in the injection nozzle assembly 100 according to an embodiment of the present invention, when the main housing 110, the guide housing 120, and the valve housing 130 are combined, the main housing 110 and the main housing 110 as shown in FIG. A guide housing 120 may be disposed between the valve housings 130 .

When the valve housing 130 is coupled to the main housing 110, a portion of an inner circumferential surface of the valve housing 130 may press the guide housing 120. Accordingly, the guide housing 120 may be inserted into the discharge port 113 of the main housing 110 in close contact, and may be prevented from being separated from the main housing 110 by the valve housing 130 .

Meanwhile, the valve housing 130 may be provided with a discharge passage 132 . The discharge passage 132 may be formed by a discharge hole 133 penetrating the front end of the valve housing 130 . That is, a discharge hole 133 may be formed at the front end of the valve housing 130 , and a discharge passage 132 may be formed as an inner space of the discharge hole 133 .

The discharge passage 132 may communicate with the radiation passage 126 and the guide passage 121 of the guide housing 120 . Meanwhile, as shown, the front end of the guide housing 120 may have a smaller diameter than the diameter of the discharge hole 133 of the valve housing 130 . Meanwhile, the front end of the guide housing 120 may be inserted and disposed in the inner space 131 of the valve housing 130 .

The main housing 110 may have a first connection passage 114 and a second connection passage 115 formed therein.

1 to 3, the first connection passage 114 communicates the first inlet 111 and the radiation passage 126 of the guide housing 120, and the second connection passage 115 communicates with the first inlet 111. 2 The inlet 112 and the guide passage 121 of the guide housing 120 communicate with each other.

Referring to FIG. 2 , the rear end of the first connection passage 114 of the main housing 110 is connected to the first inlet 111 of the main housing 110, and the front end is connected to the outlet 113 of the main housing 110. can be connected with

On the other hand, as shown in FIG. 2, when the guide housing 120 is inserted into the discharge port 113 of the main housing 110, the discharge port 113 is moved to the guide housing 120 by the inserted guide housing 120. ) can be partitioned into an inner space and an outer space.

The first connection passage 114 is connected to the outer space of the guide housing 120 among the discharge ports 113 of the main housing 110, thereby being connected to the radiation passage 126 provided outside the guide housing 120. Can be connected.

That is, the first connection passage 114 of the main housing 110 communicates the first inlet 111 of the main housing 110 and the radiation passage 126 of the guide housing 120 .

Referring to FIGS. 1 to 3 , the second connection passage 115 of the main housing 110 may communicate with the second inlet 112 and the guide passage 121 of the guide housing 120 .

Referring to FIG. 2 , the rear end of the second connection passage 115 of the main housing 110 is connected to the second inlet 112 of the main housing 110, and the front end is connected to the outlet 113 of the main housing 110. can be connected with

The second inlet 112 and the second connection passage 115 are orthogonal to each other.

The diameter of the second inlet 112 is formed to be twice or more larger than the diameter of the second connection passage 115 .

The second connection passage 115 may be connected to the guide passage 121 provided inside (axial center) of the guide housing 120 by being connected to the inner space of the guide housing 120 among the discharge ports 113 . That is, the second connection passage 115 of the main housing 110 communicates the second inlet 112 of the main housing 110 and the guide passage 121 of the guide housing 120 .

1 and 2, the first fluid (high pressure air) is introduced through the first inlet 111 of the main housing 110, passes through the first connection passage 114, and then the guide housing 120 is radiated. It may be supplied to the discharge passage 132 of the valve housing 130 through the passage 126 .

The second fluid flows in through the second inlet 112 of the main housing 110, passes through the second connection passage 115, and passes through the guide passage 121 of the guide housing 120 to the valve housing 130. It can be supplied to the discharge passage 132 of.

Meanwhile, the first fluid and the second fluid supplied to the discharge passage 132 may be mixed in the discharge passage 132 and discharged to the outside of the valve housing 130 .

Looking more specifically, a plurality of first connection passages 114 may be disposed. The first connection passage 114 may be disposed opposite to the second inlet 112 based on the second connection passage 115 .

For ease of understanding, as shown in FIG. 3, the second connection passage 115 is disposed on the axis of the main housing 110, and the second inlet 112 in which the second connection passage 115 is disposed on the lower side , and three first connection passages 114 are disposed above the second connection passage 115 .

As shown, three first connection passages 114 may be provided, but are not limited thereto and may be provided in various numbers as needed. In addition, the plurality of first connection passages 114 are spaced apart at equal angles with respect to the axis of the main housing 110 .

Looking more specifically, a seating groove 116 into which the rear end of the guide housing 120 is inserted and supported may be formed at the front end of the second connection passage 115 . The seating groove 116 may be provided with a first surface 116a for supporting the rear end of the guide housing 120 and a second surface 116b for supporting the side part of the rear end of the guide housing 120 .

The guide housing 120 may have a diameter of the rear end 123 equal to or smaller than the diameter of the second connection passage 115, and the guide housing 120 has a rear end 123 of the main housing 110. A flange portion 125 protruding outward in a radial direction with respect to the axis center C may be provided so as to be seated in the seating groove 116 .

The flange portion 125 of the guide housing 120 protrudes along the outer circumferential surface of the guide housing 120, and the diameter of the flange portion 125 is the same as the diameter of the second surface 116b of the seating groove 116 or may be made small.

The injection nozzle assembly 100 according to the embodiment of the present invention may further include a sealing part 140 . The sealing portion 140 is made of an elastic material and may be fitted to the rear end of the guide housing 120 .

1 and 2, the sealing part 140 is fitted to the rear end of the guide housing 120, the inner end of the sealing part 140 surrounds the rear end of the guide housing 120, and the front end of the sealing part 140 It may be supported by the flange portion 125 of the guide housing 120.

When the guide housing 120 is inserted into the outlet 113 of the main housing 110 as shown in FIG. 2 , the sealing part 140 may come into close contact with the seating groove 116 . That is, the rear end of the sealing part 140 is in close contact with the first surface 116a of the seating groove 116, and the outer end of the sealing part 140 is in close contact with the second surface 116b of the seating groove 116. It can be.

Accordingly, the sealing part 140 may prevent leakage between the first connection passage 114 and the second connection passage 115 . That is, in a state where the guide housing 120 is inserted into the discharge port 113, the discharge port 113 may be partitioned into an inner space and an outer space of the guide housing 120.

At this time, the first fluid in the first connection passage 114 leaks from the discharge port 113 to the second connection passage 115 by the sealing part 140 in the process of flowing the first fluid or the second fluid. leakage) is prevented, and leaking to the outside of the guide housing 120 among the outlets 113 in the process of introducing the second fluid of the second connection passage 115 into the guide passage 121 can be prevented. .

Meanwhile, the radiating passage 126 of the guide housing 120 may be provided on the outside of the guide housing 120, and at least one may be provided. Referring to FIG. 4 , six radiating passages 126 of the guide housing 120 may be spaced apart at equal angles based on the axis center C.

The guide housing 120 may have a large diameter portion 127 and a small diameter portion 128 where the radial passage 126 is formed.

The large-diameter portion 127 is disposed on the first connection passage 114 side, and the small-diameter portion 128 is disposed on the valve housing 130 side. In this embodiment, the large-diameter portion 127 is disposed on the air intake side (rear side), and the small-diameter portion 128 is disposed on the air discharge side (front side).

The thickness of the large diameter portion 127 is formed thicker than the thickness of the small diameter portion 128 .

The large diameter portion 127 and the small diameter portion 128 are each formed in a ring shape based on the shaft center C.

The inner space 131 communicates with the first inner space 131a, into which the large diameter part 127 is inserted and disposed, and the first inner space 131a, into which the small diameter part 128 is inserted and disposed. 2 inner spaces 131b and a third inner space 131c communicating with the second inner space 131b and into which the front end 122 is inserted.

The third inner space 131c communicates with the discharge hole 133 .

The first internal space 131a is disposed most rearward, the second internal space 131b is disposed in front of the first internal space 131a, and the third internal space 131b is disposed in front of the second internal space 131b. An inner space 131c is disposed, and the discharge hole 133 is disposed in front of the third inner space 131c.

The first inner space 131a has the largest diameter, the second inner space 131b has the next largest diameter, and the discharge hole 133 has the smallest diameter. The third inner space 131c may be formed as a chamfer in a conical shape connecting the second inner space 131b and the discharge hole 133 .

A plurality of the radial passages 126 are disposed inside the large diameter portion 127 and the small diameter portion 128 in the radial direction.

Referring to FIG. 6 , a spraying device for disinfection equipped with a nozzle assembly for spraying according to an embodiment of the present invention includes a case 200, a compressor (not shown) disposed inside the case 200, the compressor and It includes a hose (L) connecting the spray device (G), a spray nozzle assembly 100 disposed in the spray device (G), and a liquid medicine container (T) assembled to the spray nozzle assembly 100. can do.

Case 200 may be provided with a front part (200a) and a rear part (200b). The rear part 200b of the case 200 may provide a user's backrest space. The front part 200a of the case 200 may be combined with or separated from the rear part 200b of the case 200 .

The front part 200a and the rear part 200b of the case 200 may form an inner space when coupled. An armrest strap 270 may be formed on the rear portion 200b of the case 200 . When the user H wears the case 200, the armrest strap 270 is hung on the arm of the user H, so that the user H can easily carry and move the disinfectant sprayer. There are advantages.

A compressor (not shown) may be disposed inside the case 200 , and high-pressure air discharged from the compressor may be supplied to the injection nozzle assembly 100 .

Hereinafter, the operation of the injection nozzle assembly 100 according to the present invention will be described.

The first inlet 111 of the main housing 110 may be introduced with high-pressure compressed air as the first fluid by the injector G. The high-pressure compressed air, which is the first fluid introduced into the first inlet 111 of the main housing 110, passes through the first connection passage 114 of the main housing 110 to the outlet 113 of the main housing 110. can be introduced.

The first fluid introduced into the discharge port 113 of the main housing 110 through the first connection passage 114 of the main housing 110 passes through the radial passage 126 of the guide housing 120 and then passes through the valve housing 130 ) may be supplied to the discharge passage 132.

In the process of supplying the first fluid, which is high-pressure compressed air, to the discharge passage 132 of the valve housing 130, the first fluid is separated to pass through the plurality of first connection passages 114, and the discharge port ( 113), the first fluid may swirl while passing through the plurality of radial passages 126 of the guide housing 120 and be discharged to the discharge passage 132 of the valve housing 130.

In this way, in the process of discharging the first fluid, the internal pressure of the discharge channel 132 rapidly decreases, and accordingly, the internal pressure of the discharge channel 132 pumps the second fluid stored in the liquid container T.

That is, due to the pressure of the chemical container T, which is relatively higher than the pressure of the discharge passage 132, the second fluid such as disinfectant stored in the chemical container T flows through the second inlet 112 of the main housing 110. It may be introduced into the main housing 110 through and pumped into the second connection passage 115 of the main housing 110 and the guide passage 121 of the guide housing 120 .

On the other hand, the second fluid such as disinfectant that has passed through the guide passage 121 of the guide housing 120 is discharged to the discharge passage 132, and when discharged to the discharge passage 132, due to the rapidly lowered pressure, the second fluid is changed into fine particles, and the first fluid and the second fluid changed to fine particles are mixed in the discharge passage 132 and discharged to the outside of the valve housing 130 .

7 is a use state diagram of a spray device for disinfection according to a second embodiment of the present invention, FIG. 8 is a perspective view of a liquid medicine container and spray device shown in FIG. 7, and FIG. 9 is a spray nozzle assembly shown in FIG. is an exploded cross-section of

Unlike the first embodiment, the injection nozzle assembly according to the present embodiment is characterized in that a heating wire for heating the second fluid is further disposed.

When the external air temperature is low, the viscosity of the second fluid stored in the chemical reservoir T may increase. Also, when the external temperature is low and the chemical container T is stored outside, the second fluid may freeze.

In this way, when the viscosity of the second fluid increases above the reference value or freezes, there is a problem in that the second fluid cannot flow through the pressure difference even if high-pressure air is discharged.

To this end, in this embodiment, the battery 300 disposed inside the case 200, the hot wire module 400 disposed in the injection nozzle assembly 100, and disposed in the hose L, and the battery A power line 310 providing power of 300 to the hot wire module 400 may be included.

The power line 310 may be buried and disposed inside the sheath of the hose (L).

The power line 310 may extend into the injection device G and be connected to the nozzle assembly 100 for injection. The hot wire module 400 may generate heat through power supplied through the power line.

The main housing 110 is further formed with a cylindrical hot wire insertion groove 410 spaced apart from the second inlet 112 and surrounding the second inlet 112 .

The inner and outer diameters of the hot wire insertion groove 410 are larger than those of the second inlet 112 . The lower side of the hot wire insertion groove 410 is opened.

The hot wire insertion groove 410 may have a cylindrical shape surrounding the second inlet 112 and has a closed upper end.

The hot wire module 400 includes a heat case 420 inserted into the hot wire insertion groove 410, a hot wire 430 disposed inside the heat case 420, and a rear end of the main housing 110 ( 110b) and includes a hot wire terminal 440 connected to the power line 310 and a buried cable 450 connecting the hot wire terminal 440 and the hot wire 430.

The heat case 420 has a cylindrical shape inserted into the hot wire insertion groove 410 . The heat case 420 is made of an insulator material and is a material capable of conducting heat.

The heat case 420 may be made of ceramic or glass.

The heat wire 430 may be spirally arranged inside the heat case 420 . The heat of the hot wire 430 may heat the second inlet 112 through conduction.

The front end of the buried cable 450 is coupled to the heat case 420 and electrically connected to the heat wire 430 . The rear end of the buried cable 450 is coupled to the hot wire terminal 440 .

The hot wire terminal 440 is exposed at the rear end 110b of the main housing 110 and is connected to the power line 310 branched from the hose L.

The hot wire terminal 440 and the buried cable 450 are integrally manufactured. A wire connected to the hot wire 430 is embedded in the buried cable 450 .

The buried cable 450 is preferably made of a solid insulator material.

A cable groove 460 connecting the hot wire insertion groove 410 is formed at the rear end 110b of the main housing 110, and a buried cable 450 is inserted toward the hot wire insertion groove 410 at the rear end 110b. to be assembled

The hot wire insertion groove 410 and the cable groove 460 are orthogonally arranged.

Through the insertion of the buried cable 450, the embedded wire and the hot wire 430 contact and are electrically connected.

The handle (S) of the injector (G) can be operated in multiple stages.

For example, when it is rotated in the first stage, the power of the battery 300 is applied and power is supplied to the heating wire 430, and the second inlet 112 can be heated by the heat generated by the heating wire 430. .

When the knob S is rotated to the second stage, power of the battery 300 and the compressor are operated, and high-pressure air is supplied to the first inlet 111 .

That is, when the handle (S) is rotated in two stages, power and high-pressure air are simultaneously provided to the injector (G).

Therefore, when the user H preheats the spray nozzle assembly 100, the main housing 110 can be heated by rotating the handle S in one step.

The heating wire module 400 includes a heat plate 470 disposed inside the chemical container T and an additional power line 320 branched from the power line 310 and connected to the heat plate 470 and an additional power terminal 480 exposed to the outside of the chemical reservoir T, coupled to the additional power line 320, and electrically connected to the heat plate 470.

The heat plate 470 is formed of an insulator, and an additional heating wire (not shown) is disposed therein.

The additional power line 320 is coupled to the additional power terminal 480 to provide power to the additional hot wire.

When power is applied, the heat plate 470 generates heat to directly heat the inside of the chemical reservoir T, thereby directly heating the second fluid inside the chemical reservoir T.

A lever 490 is disposed at the additional power terminal 480, and power applied to the heat plate 470 can be controlled through the lever 490.

Since the remaining configurations are similar to those of the first embodiment, detailed descriptions thereof are omitted.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those skilled in the art to which the present invention belongs Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

100: injection nozzle assembly
110: main housing
120: guide housing
130: valve housing

Claims (1)

a main housing 110 to which a first fluid and a second fluid are supplied;
a guide housing 120 inserted into and disposed in the main housing 110;
a valve housing 130 assembled to the main housing 110 and pressurizing and fixing the guide housing 120 to the main housing 110; and
Including; a hot wire module 400 disposed in the main housing 110,
The main housing 110,
A first inlet 111 having a cylindrical shape and formed at a rear end, through which the first fluid flows;
a second inlet 112 formed on a side portion and through which the second fluid flows;
a discharge port 113 formed at a front end and communicating with the first inlet 111 and the second inlet 112;
a first connection passage 114 connecting the first inlet 111 and the outlet 113; and
A second connection passage 115 connecting the second inlet 112 and the outlet 113; includes,
The guide housing 120,
a guide passage 121 inserted into the outlet 113, connected to the second connection passage 115, and connecting the second fluid to the valve housing 130;
a rear end 123 through which the guide passage 121 passes and inserted into the discharge port 113;
a front end portion 122 formed through the guide passage 121 and inserted into the valve housing 130;
a flange portion 125 disposed on the side of the rear end portion 123 and protruding outward in a radial direction;
a large-diameter portion 127 disposed at a side of the front end portion 122 and spaced apart from the flange portion 125 in the longitudinal direction of the guide passage 121;
a small diameter portion 128 extending from the large diameter portion 127 toward the front end portion 122 and having a smaller diameter than the large diameter portion 127; and
A plurality of radial passages 126 penetrating the large diameter portion 127 and the small diameter portion 128 and arranged in parallel with the longitudinal direction of the guide passage 121; including,
The valve housing 130,
an inner space 131 in which the front end 122 of the guide housing 120 and the radiation passage 126 are inserted and located;
a discharge hole 133 communicating with the inner space 131 and into which the front end 122 is inserted; and
A discharge passage 132 communicating with the discharge hole 133 and mixing the first fluid supplied from the radiation passage 126 and the second fluid supplied through the guide passage 121; Includes,
The inner end surrounds the rear end of the guide housing 120, and the front end is supported by the flange portion 125 of the guide housing 120 and is seated when the guide housing 120 is inserted into the discharge port 113 of the main housing 110. Including; sealing part 140 in close contact with the groove 116,
The hot wire module 400 is disposed to surround the second inlet 112 of the main housing 110 and heats the second inlet 112 by generating heat by applied power.

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