KR20170100751A

KR20170100751A - Dispenser

Info

Publication number: KR20170100751A
Application number: KR1020160022976A
Authority: KR
Inventors: 김용수
Original assignee: 하좌용
Priority date: 2016-02-26
Filing date: 2016-02-26
Publication date: 2017-09-05
Also published as: KR101814470B1

Abstract

The present invention relates to a dispenser, spraying an entire amount of undiluted solution filled inside a container, comprising: the container where the functional undiluted solution and a propellant are filled; and an undiluted solution discharge valve mounted and fixated to an opening formed in an upper end of the container. 20-70 volume% of the functional undiluted solution is filled in the container, and the propellant is filled in the container at a ratio of 2-12 bar with respect to the functional undiluted solution.

Description

Dispenser {DISPENSER}

The present invention relates to a dispenser in which a functional stock solution filled in a container is sprayed (ejected) out of a container.

In general, the dispenser has been used for spraying mosquito repellent, fragrance, anti-rust agent, brightener, liquid wax, paint and the like. In recent years, the dispenser has been used for aesthetics, especially moisturizing materials for face and body moisturizing, It is also used for spraying.

1A and 1B are cross-sectional views showing a conventional conventional dispenser. The conventional dispenser 10 includes a container 12 having an open upper portion, a valve body 14 mounted on an opened upper portion of the container 12, And a diptube (16) extending from the lower portion of the container (12) to an inner lower end side of the container (12).

In this case, various functional stock solutions (O) and propellant G are filled in the interior of the container 12. When the inside and the outside of the container 12 are communicated by pressing the valve body 14, The functional stock solution O in the container 12 is discharged to the outside of the container 12 through the valve body 14 while flowing into the valve body 14 through the diptube tube 16.

However, in the conventional dispenser 10, when the dispenser 10 is vertically used as shown in FIG. 1A, the functional liquid O (DL) is normally discharged. However, as shown in FIG. 1B, The functional stock solution O is higher than the propellant G so that the functional stock solution O is lower than the end of the diptube 16 because the specific gravity of the functional stock solution O is higher than that of the propellant G. Therefore, So that only the propellant G flows into the tube 16 and is discharged.

On the other hand, various methods for improving the above-mentioned problems have been searched for variously. Representative examples thereof include Korean Patent No. 10-1130771 and Korean Patent No. 10-1146126.

In the aforementioned Korean patents, an "aerosol spray dispensing valve device" is disclosed in which the dispenser is normally used vertically or when the dispenser is rotated upside down, the undiluted solution is sprayed.

However, the above-described injection valve device disclosed in Korean Patent Publication has an opening / closing means for opening / closing the raw liquid flow path when the dispenser is normally vertically used and another opening / closing means for opening / closing the raw liquid flow path when the dispenser is rotated upside down It is not only complicated but also difficult to manufacture.

In addition, the conventional dispensers as well as the above-mentioned Korean patent applications have a problem in that all of the functional stock solution is not sprayed at the time of use. This is because the pressure of the propellant is lower than the volume of the contents to be filled in the container of the dispenser.

A first object of the present invention is to provide a dispenser capable of spraying the entire amount of the functional stock solution filled in the container.

A second object of the present invention is to provide a dispenser having a simple structure in which the spraying action of the functional stock solution can be smoothly performed even when the dispenser is turned upside down.

The technical objects to be achieved by the present invention are not limited to the above-mentioned technical problems.

In order to accomplish the first object of the present invention, there is provided a dispenser having a raw liquid dispensing valve fixedly mounted on an opening formed in a top of a container and a container filled with a functional stock solution and a propellant, % Of the functional stock solution, and the propellant can be charged at a pressure ratio of 2 to 12 bar to the functional stock solution.

According to a second aspect of the present invention, there is provided a dispenser comprising: a container filled with a functional stock solution and a propellant; and a dispenser having a raw liquid dispensing valve sealingly fixedly mounted on an opening formed at an upper end of the container by a mounting cap The dispenser further includes an undiluted solution induction valve formed at a lower end of the undiluted solution discharge valve, the undiluted solution induction valve having an induction valve body connected to a lower end side of the discharge valve body and disposed inside the container; A first stock solution guiding part for guiding the functional stock solution submerged to the bottom side of the container to the discharge valve body side when the dispenser is vertically used; And a second undiluted solution guiding part for guiding the functional stock solution submerged to the upper side of the container to the discharge valve body side when the dispenser is turned upside down.

Specifically, the fitting groove for fitting the lower end of the discharge valve body may be formed at the upper center portion of the induction valve body.

Specifically, the first undiluted solution guiding portion includes: a first undiluted guiding protrusion extending from the lower end of the undiluted guiding body to the interior of the undiluted guiding body; And a second fluid guidewire extending from the bottom of the fitting attachment groove into which the lower end of the discharge valve body is fitted to the inside of the bottom guidance body and connected to the first bottom fluid guiding hole.

Specifically, the first fluid guiding hole exposed to the lower end of the undiluted guiding body is equipped with a dip tube extending to a position adjacent to the lower end of the container, and the second guiding guiding hole exposed to the bottom of the fitting mounting groove is connected to the discharging valve body, The lower end of the discharge valve body may be formed with a spinneret for connecting the second undiluted solution guiding hole and the stem mounting groove of the discharge valve body.

Specifically, when the dispenser is vertically used, the first undiluted solution guiding portion guides the functional undiluted solution toward the discharge valve body through the first undiluted solution inducer and the second undiluted solution inducing hole. When the dispenser is turned upside down, the first undiluted solution inducer and the second undiluted solution inducer Wherein the second flow path switching means is formed inside the undiluted solution inducing body and includes a first flow path guide member and a second flow path guide member, A first flow path conversion chamber vertically provided between the extension ends; And a first valve body movably incorporated into the upper and lower sides of the first flow conversion chamber with a steel ball shape, wherein an extension end of the first liquid flow guide is connected to an intermediate portion of the first flow conversion chamber, The upper end of the flow path conversion chamber may be connected to an extension end of the second liquid flow guide.

Specifically, the second undiluted solution guiding portion includes: a second flow path switching means formed inside the undiluted solution guiding body; A third raw fluid guide rod extending from the upper portion of the raw fluid guide body to the inside of the raw fluid guide body and connected to the second flow channel switching means; And a fourth fluid guiding hole connecting the second fluid guiding hole and the second flow path switching means, wherein the second flow path switching means vertically sets the dispenser so as to connect the discharge valve body And when the dispenser is turned upside down, the functional raw fluid can be guided to the discharge valve body side through the third original fluid guide device, the fourth original fluid guide device, and the second original fluid guide device.

Specifically, the second flow path switching means includes a second flow path switching chamber provided vertically; And a second valve body movably installed on the upper and lower sides of the second flow-passage conversion chamber while having a steel ball shape. The extension of the third fluid-flow guide is connected to an intermediate portion of the second flow- At the lower end of the flow path switching chamber, a fourth source inducing hole extending from the second source inducing hole may be connected.

Specifically, an annular guide groove, which is formed on the outer side of the fitting attachment groove and connected to the third original solution guide hole, may be formed at the upper end of the undiluted solution inducing body.

As described above, since the dispenser according to the present invention forms an undiluted solution-guiding valve, the dispenser can be conveniently used because the functional liquid can be smoothly sprayed even when the dispenser is used uprightly, And thus it is possible to spray the entire amount of the functional stock solution.

Figures 1a and 1b show a conventional dispenser,
2 is a view illustrating a dispenser according to the present invention,
Fig. 3 is an enlarged view of the portion "A" shown in Fig. 2, showing the flow path of the functional stock solution when the dispenser is vertically used,
FIG. 4 is a view showing a flow path of the functional stock solution when the dispenser shown in FIG. 2 is used upside down.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference symbols whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

First, the dispenser 100 according to the present invention is characterized in that it can spray the entire amount of the functional stock solution O filled in the container 110 (see FIG. 2).

The inventor of the present invention paid attention to the fact that there is a close relationship between the volume of the functional stock solution O and the pressure of the propellant G in order to spray the entire amount of the functional stock solution O filled in the container 110.

Table 1 below shows the pressure of the propellant (G) relative to the volume of the functional stock solution (O) filled in the container (110).

Functional liquid volume (volume%) Propellant pressure (bar) 20-25 2 to 5 25 to 30 2 to 7 35 to 40 3 to 8 45 to 50 4 to 9.5 55 ~ 60 4.5 to 10 65 to 70 4.5 to 12

As shown in Table 1, the inventor of the present invention has found that when the pressure of the propellant G is lower than the lower limit threshold value with respect to the volume (volume%) of the functional solution O filled in the container 110, It was confirmed that the total volume of the functional stock solution (O) was not sprayed.

It is also confirmed that the total amount of the functional stock solution O is sprayed when the pressure of the propellant G is higher than the lower limit threshold value with respect to the volume (volume%) of the functional stock solution O filled in the container 110.

However, when the propellant (G) exceeds the upper limit threshold value shown in Table 1 with respect to the volume (volume%) of the functional stock solution (O), it is confirmed that the outer shape of the container 110 is deformed.

That is, when the propellant G exceeds the upper limit threshold value with respect to the volume (volume%) of the functional stock solution O, the thickness of the container 110 must be made thick, And the economical efficiency is lowered.

Therefore, in order to improve the economical efficiency in consideration of the loss of the propellant (G) involved in using the dispenser (100), it is preferable to fill the functional stock solution (O) and the propellant (G) within the range shown in Table 1.

Here, the propellant (G) may be a conventional propellant (G), for example, LPG mixed with liquefied nitrogen, liquefied oxygen, liquefied air, LPG or butane gas, or LPG mixed with dimethyl ether (DME).

Although the dispenser 100 shown in FIG. 2, that is, the dispenser 100 of the dispenser 100 in which the spraying action of the functional stock solution O is smoothly performed even when the dispenser 100 is turned upside down has been described, (Not shown), that is, a dispenser container (see FIGS. 1A and 1B) in which a functional stock solution is sprayed only when the dispenser is vertically erected.

Hereinafter, the dispenser 100 will be described in which the spraying action of the functional stock solution O can be smoothly performed even if the dispenser 100, which is another technical feature of the present invention, is turned upside down.

Herein, the upper and lower ends, or the upper and lower portions, of the respective components of the dispenser 100 according to the present invention are referred to as the dispenser 100 shown in Fig. 2, i.e., the dispenser 100 in a standing state, The top and bottom, or top and bottom, of the elements will be referred to equally, even if the dispenser 100 according to the present invention is turned upside down.

2 to 4 illustrate a dispenser according to the present invention. The dispenser 100 according to the present invention includes a container 110, a raw liquid discharge valve 120, and a raw liquid induction valve 140.

2, the lower end of the container 110 is sealed, the opening 112 is formed at the upper end thereof, and the interior of the container 110 is hollow.

The functional stock solution (O) and the propellant (G) are charged into the empty space of the container (110) in the ratio shown in Table 1 above. It is preferable that the container 110 filled with the functional stock solution O and the propellant G is manufactured to have pressure resistance for safety.

In addition, the container 110 can be made transparent so that it can be seen through the inside.

The source liquid discharge valve 120 is fixedly mounted on the opening 112 so that the opening 112 of the container 110 is sealed by the mounting cap 114 and selectively discharges the functional stock solution O to the outside of the container 110 .

The source liquid discharge valve 120 includes a valve stem 128, a stem gasket 134, a spring 136 and a discharge valve body 122 for supporting the valve stem 128, the stem gasket 134 and the spring 136, .

The discharge valve body 122 is disposed inside the opening 112 and an annular flange 124 is integrally formed on the outer peripheral surface adjacent to the upper end of the discharge valve body 122 so as not to interfere with the opening 112. A ring-shaped stem gasket 134 having an inner peripheral edge and an outer peripheral edge is seated on an upper portion of the annular flange 124, and the stem gasket 134 is tightly fixed to the mounting cap 114.

The discharge valve body 122 is formed with a stem mounting groove 126 in which a spring 136 is embedded and the valve stem 128 is supported so as to be elevated from the upper end of the discharge valve body 122 to the lower end. The valve stem 128 is extended through the mounting cap 114 while being elastically supported by a spring 136 installed in the stem seating groove 126 so that the valve stem 128 is supported by the stem mounting groove 126).

On the other hand, the valve stem 128 is provided with a raw liquid discharge port 130 extending from the upper end to the lower end of the valve stem 128, and on the outer circumferential surface adjacent to the lower end of the valve stem 128, An orifice 132 is formed. The orifice 132 is interrupted by a stem gasket 134.

That is, the valve stem 128 is depressed by an external force when spraying the functional stock solution O. At this time, the valve stem 128 is lowered while pressing the spring 136, and the orifice 128 132 is released from the inner periphery of the stem gasket 134 and sprayed to the outside of the container 110 with the functional stock solution O introduced into the stem seating groove 126 by the original solution induction valve 140 to be described later.

At the lower end of the discharge valve body 122 is formed a raw liquid discharging hole 138 for guiding the functional liquid O guided to the raw liquid induction valve 140 side to the stem seating groove 126 side.

On the contrary, when the external force acting on the valve stem 128 is recovered, the restoring force of the spring 136 causes the valve stem 128 to rise, and as the valve stem 128 rises, the orifice 132 is released from the stem gasket 134 ) To block spraying of the functional stock solution (O).

The valve stem 128 protruding outside the mounting cap 114 is provided with an actuator (not shown) for spraying the functional stock solution O sprayed by the valve stem 128 in the form of mist Everyone will know that it is installed.

Also, the coupling relationship between the liquid discharge valve 120 and the container 110 using the mounting cap 114 is a well-known technology, and thus a detailed description thereof will be omitted.

When the dispenser 100 is vertically used, the undiluted solution induction valve 140 induces the functional stock solution O that has settled to the lower end side of the container 110 toward the discharge valve body 122 side when the induction valve body 142 and the dispenser 100 are vertically used. And the functional raw liquid O that has submerged on the upper end side of the container 110 when the dispenser 100 is turned upside down, that is, toward the discharge valve body 122 side toward the discharge valve body 122 side And a second undiluted solution guiding portion 158 for guiding the second undiluted solution.

The induction valve body 142 is connected to the lower end of the discharge valve body 122 and is disposed inside the container 110 as shown in FIG. To this end, an insertion fitting groove 144 into which the lower end of the discharge valve body 122 is fitted is formed at the upper center portion of the induction valve body 142. In the induction valve body 142 thus formed, a first undiluted solution guiding part 146 and a second undiluted solution guiding part 158 are formed.

The first fluid guiding part 146 includes a first fluid guiding hole 148a extending from the lower end of the bottom guiding body 142 to the inside of the bottom guiding body 142, And a second original liquid guide hole 148b extending from the bottom of the original liquid guide body 142 to the first original liquid guide hole 148a.

At this time, a dip tube (150) extending to a position adjacent to the lower end of the container 110 is provided in the first liquid guiding hole 148a, that is, the first liquid guiding hole 148a exposed to the lower end of the liquid guiding body 142 And the second liquid guiding hole 148b exposed to the bottom of the fitting attachment groove 144 is formed to communicate with the liquid discharging hole 138. [

The first fluid guiding portion 146 guides the functional stock solution O toward the discharge valve body 122 through the first and second fluid guiding holes 148a and 148b when the dispenser 100 is vertically used, A first flow path switching means 152 for preventing the propellant G from being introduced to the discharge valve body 122 through the first and second fluid guiding holes 148a and 148b connected to each other when the dispenser 100 is turned upside down .

The first flow path switching means 152 is formed inside the original fluid guiding body 142 and is provided between the extending end of the first original fluid guiding hole 148a and the extending end of the second original fluid guiding hole 148b, And a first valve body 156 having a shape of a steel ball and being movably installed on the upper and lower sides of the first flow passage conversion chamber 154.

At this time, an extended end of the first raw-fluid guide hole 148a is connected to the middle portion of the first flow-passage conversion chamber 154, and an extended end of the second original-liquid guide hole 148b is connected to the upper end of the first flow- .

That is, when the dispenser 100 is vertically used, the functional liquid O sinks to the lower end side of the vessel 110, and the first valve body 156 is connected to the lower end of the first flow conversion chamber 154, The first fluid guide hole 148a and the second guide fluid guide 148b communicate with each other. At this time, the first and second fluid guide holes 148a and 148b communicate with each other, The functional stock solution O is injected into the stem receiving groove 126 through the dip tube 150, the first liquid guiding hole 148a, the second liquid guiding hole 148b, and the raw liquid discharging hole 138 And is sprayed out of the vessel 110 through the valve stem 128.

Conversely, when the dispenser 100 is turned upside down, the functional solution O sinks to the upper end side of the container 110, that is, to the discharge valve body 122 side, and the propellant G is directed to the lower end side of the container 110 The first valve body 156 is moved to the upper side of the first flow passage conversion chamber 154 to close the second liquid guide hole 148b so that the second valve guide member 148b The propellant G is not guided to the discharge valve body 122 side even when the valve stem 128 is pressed and when the valve stem 128 is pressurized, the functional stock solution O flows through the second undiluted guiding portion 148b To the discharge valve body 122 side.

On the other hand, the second undiluted solution guiding portion 158 is formed in the undiluted guiding body 142 so as not to interfere with the first undiluted guiding portion 146.

The second fluid guiding part 158 includes a second flow path switching unit 160 formed inside the original fluid guiding body 142 and a second fluid guiding part 160 extending from the upper part of the original fluid guiding body 142 to the inside of the original fluid guiding body 142, A third fluid guiding hole 166a connected to the second flow path switching means 160 and a fourth fluid guiding hole 166b connecting the second fluid guiding hole 158 and the second flow path switching means 160. [

The second flow path switching means 160 prevents the propellant G from being introduced to the discharge valve body 122 through the third and fourth fluid guiding holes 166a and 166b when the dispenser 100 is vertically used When the dispenser 100 is turned upside down, the functional liquid O is guided toward the discharge valve body 122 through the third, fourth and the second liquid guide holes 166a, 166b and 148b.

The second flow path switching means 160 includes a vertically arranged second flow path switching chamber 162 and a second flow path switching chamber 162 having a steel ball shape and being movably installed on the upper and lower sides of the second flow path switching chamber 162 And a valve body 164. The second flow path switching chamber 162 is connected to the middle portion of the second flow path switching chamber 162 by an extension of the third fluid guiding hole 166a, 148b are connected to the fourth undiluted solution inducing hole 166b.

That is, when the dispenser 100 is turned upside down, the functional solution O does not go to the upper end of the container 110, and the second valve body 164 is moved to the upper portion of the second flow conversion chamber 162, The third and fourth fluid guiding holes 166a, 166b, and 148b are communicated with each other, and at this time, the third and fourth fluid guiding holes 166a, 166b, and 148b are communicated with each other, When the stem 128 is pressurized, the functional stock solution O flows into the stem seating groove 126 through the third, fourth and the second liquid guide holes 166a, 166b and 148b and flows through the valve stem 128 110). At this time, since the first valve body 156 closes the second original liquid guiding hole 148b as described above, the propellant G is not guided to the discharge valve body 122 side.

In contrast, when the dispenser 100 is vertically used, the functional liquid O sinks to the lower end side of the container 110, the propellant G flows to the upper end side of the container 110, Is moved to the lower end of the second flow-passage conversion chamber 162, which is lower than the lower end of the second flow-passage conversion chamber 162, that is, the lower end of the third flow-through guide hole 166a, and closes the fourth undiluted flow guide hole 166b. The propellant G is not guided to the discharge valve body 122 side by the second valve body 164 that closes the fourth fluid guiding hole 166b even when the valve stem 128 is pressed under the valve stem 128, As described above, flows into the stem seating groove 126 through the dip tube 150, the first liquid guiding hole 148a, the second liquid guiding hole 148b, and the raw liquid discharging hole 138 to move the valve stem 128 To the outside of the container 110.

An annular guide groove 168 is formed at the upper end of the undiluted solution inducing body 142 and is formed on the outer side of the fitting attachment groove 144 and connected to the third undiluted solution inducing hole 166a.

The dispenser 100 according to the present invention is formed by forming the original solution valve 140 so that the functional solution O can smoothly flow even when the dispenser 100 is used, The dispenser 100 can be conveniently used, and the loss of the propellant G can be prevented, thereby allowing the entire amount of the functional stock solution O to be sprayed.

The dispenser 100 is not limited to the construction and operation of the embodiments described above. The above embodiments may be configured so that all or some of the embodiments may be selectively combined to make various modifications.

100: dispenser 110: container
112: opening 114: mounting cap
120: raw liquid discharge valve 122: discharge valve body
128: valve stem 134: stem gasket
136: spring 140:
142: Induction valve body 144: Fitting mounting groove
146: first stock solution guiding part 148a: first stock solution guiding part
148b: second stock solution guide 150: dip tube
152: first flow path switching means 154: first flow switching chamber
156: first valve body 158: second undiluted solution guide portion
160: second flow path switching means 162: second flow switching chamber
164: second valve body 166a: third original liquid guiding hole
166b: fourth undiluted flow guide 168: guide groove

Claims

A dispenser having a container filled with a functional stock solution and a propellant, and a raw liquid discharge valve fixedly mounted on an opening formed at an upper end of the container,
In the container,
20 to 70% by volume of the functional stock solution is filled,
Wherein the propellant is charged at a pressure ratio of 2 to 12 bar with respect to the functional stock solution.

A dispenser comprising: a container filled with a functional stock solution and a propellant; and a spinneret discharge valve sealingly fixedly mounted on an opening formed at an upper end of the container by a mounting cap,
The dispenser further includes an undiluted solution induction valve formed at a lower end of the undiluted solution discharge valve,
Wherein the undiluted solution induction valve comprises:
An induction valve body connected to a lower end side of the discharge valve body and disposed inside the container;
A first undiluted solution guiding part for guiding the functional stock solution submerged to the lower side of the container toward the discharge valve body when the dispenser is vertically used; And
And a second undiluted solution guiding part for guiding the functional stock solution submerged to the upper side of the container toward the discharge valve body side when the dispenser is turned upside down.

The method of claim 2,
And a fitting attachment groove into which a lower end of the discharge valve body is fitted is set in an upper center portion of the induction valve body.

The method of claim 2,
Wherein the first undiluted solution guiding portion comprises:
A first undiluted guiding member extending from the lower end of the undiluted guiding body to the interior of the undiluted guiding body; And
And a second fluid guidewire extending from the bottom of the fitting attachment groove into which the bottom of the discharge valve body is fitted, into the bottom of the bottom guidable body and connected to the first bottom fluid guiding hole.

The method of claim 4,
And a dip tube extending to a position adjacent to a lower end of the container is mounted on the first raw fluid guide hole exposed to the lower end of the stock solution guiding body,
The second fluid guide hole exposed to the bottom of the fitting attachment groove is connected to the discharge valve body,
And a lower portion of the discharge valve body is formed with a raw liquid discharging hole connecting the second undiluted liquid guiding hole and the stem seating groove of the discharging valve body.

The method of claim 4,
Wherein the first undiluted solution guiding part guides the functional stock solution toward the discharging valve body through the first undiluted solution guiding hole and the second undiluted solution guiding hole when the dispenser is vertically used and when the dispenser is turned upside down and used, And a first flow path switching means for preventing the propellant from being introduced to the discharge valve body side through the induction hole and the second fluid guide hole,
Wherein the second flow path switching means comprises:
A first flow conversion chamber formed inside the undiluted solution induction body and vertically provided between an extended end of the first undiluted flow guide and an extended end of the second undiluted flow guide; And
And a first valve body movably installed on the upper and lower sides of the first flow path conversion chamber,
Wherein an extension of the first source fluid guide is connected to an intermediate portion of the first flow conversion chamber and an extension of the second source fluid guide is connected to an upper end of the first flow conversion chamber.

The method of claim 2,
Wherein the second undiluted solution guiding portion comprises:
A second flow path switching means formed inside the undiluted solution inducing body;
A third undiluted flow guide member extending from the upper portion of the undiluted solution inducing body to the interior of the undiluted solution inducing body and connected to the second flow path switching unit; And
And a fourth undiluted solution inducing hole connecting the second undiluted solution guiding hole and the second flow path switching means,
The second flow path switching means prevents the propellant from being introduced to the discharge valve body side through the third source fluid guide hole and the fourth source fluid guide hole when the dispenser is vertically used and when the dispenser is turned upside down, Wherein the functional raw fluid is guided to the discharging valve body side through the third raw fluid guide shaft, the fourth original fluid guide shaft, and the second original fluid guide shaft.

The method of claim 7,
The second flow path switching means includes a second flow path switching chamber vertically provided; And
And a second valve body having a ball shape and being movably incorporated into the upper and lower sides of the second flow path conversion chamber,
Wherein an extension of the third source liquid guide hole is connected to an intermediate portion of the second flow channel conversion chamber and the fourth source liquid guide hole extending from the second source liquid guide hole is connected to the lower end of the second flow channel conversion chamber.

The method of claim 7,
And an annular guiding groove formed at an outer side of the fitting attachment groove and connected to the third undiluted solution inducing hole is formed at an upper end of the undiluted solution inducing body.