Liquid jetting nozzle adapter and liquid supply tool

Abstract

To provide a liquid jetting nozzle adapter and a liquid supply tool configured such that, in use of a liquid storage container formed of a spout pouch instead of a bellow-shaped liquid storage container of a liquid supply tool, the liquid storage container formed of the spout pouch is connected to a conventional liquid jetting nozzle by using the adapter therebetween.SOLUTION: An adapter 6 is connected to a connection port of a liquid storage container of a liquid jetting nozzle, and a liquid storage container 5 formed of a spout pouch is connected to an end portion of the adapter 6. A hollow tubular shaft part 63 projects in a side of the adapter 6 to which the liquid storage container 5 is connected. The shaft part 63 is inserted to the inside of the liquid storage container 5. Liquid can be sucked into the liquid jetting nozzle through a hole part formed in the shaft part 63.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the structure of an adapter that enables a liquid ejection nozzle (hereinafter simply referred to as "nozzle") of a liquid supply tool to eject and supply liquid stored in a liquid storage container consisting of a spout pouch. [Background technology]

[0002] As a liquid supplying tool for supplying cleaning liquid or the like to a predetermined location or for spraying paint, there is known a configuration in which, as shown in FIG. 6, a compressed air supply means 3 and a liquid storage container 4 are connected to a liquid-spouting nozzle 2, compressed air is introduced into the liquid-spouting nozzle 2 to suck in liquid from the liquid storage container 4, and the liquid is mixed with the compressed air and sprayed from the nozzle outlet 2a of the nozzle 2 (see, for example, Patent Documents 1 and 2).

[0003] More specifically, the compressed air supply means 3 of the liquid supply tool 1 shown in the figure is an air delivery device configured in a gun shape similar to a painting air gun, and an air outlet 31 at its tip is connected to the liquid ejection nozzle 2 so that when the trigger is pulled, compressed air delivered from a compressor (not shown) is supplied into the nozzle 2. The liquid storage container 4 is a storage tank made of synthetic resin with bellows-like expandable walls in which liquid is stored, and a spout 41 at the top thereof is adapted to be attached to the lid 22 of the liquid ejection nozzle 2. As shown in FIG. 7, the liquid ejection nozzle 2 has an ejection outlet 2a at the tip of the nozzle body 21, an air inlet 2b at the other end to which the air ejection outlet 31 of the compressed air supply means 3 is connected, and a liquid inlet 2f at the bottom to which the spout 31 of the liquid storage container 3 is connected. Inside the nozzle body 21, there are provided and molded as a single unit each of the following flow paths: an air flow path 2c that leads to the air inlet 2b, a liquid flow path 2g that leads to the liquid inlet 2f and intersects with the air flow path 2c, and a tubular mixing flow path 2d that leads from the intersection of the liquid flow paths 2g to the ejection outlet 2a.

[0004] The liquid supply device 1 having the above configuration blows compressed air from the compressed air supply means 3 into the liquid ejection nozzle 2 to create a negative pressure state downstream of the liquid flow path 2g, thereby sucking the liquid in the liquid storage container 4 into the nozzle, mixing it with the compressed air, and ejecting it from the ejection port 2a at the tip of the nozzle. In addition, the liquid storage container 4 shrinks in size as the liquid inside it flows out, and once it is empty, it can be disposed of together with the liquid ejection nozzle 2 as plastic waste, as shown in Figure 8. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-14339 [Patent Document 2] Japanese Patent Application Laid-Open No. 2007-245044 Summary of the Invention [Problem to be solved by the invention]

[0006] The liquid storage container 4 used in the conventional liquid supply device 1 has a bellows-shaped wall, so it is not possible to print and display instructions on the surface of the container, such as a description of the stored liquid, how to use it, how to dispose of it, etc. Therefore, when selling the liquid storage container 4, it was necessary to separately prepare a label, tag, tag or the like showing the instructions and precautions and attach it to the liquid storage container 4. If the label and the like were produced separately from the liquid storage container 4, the product cost would increase, and it would be necessary to manage the liquid storage container 4 and the label so that they would not separate during storage or transportation, which would be troublesome, and it would also be necessary to secure a large space for display.When disposing of the liquid storage container 4, the label and the liquid storage container 4 must be separated and disposed of, which is also troublesome.

[0007] In view of the problems with the prior art, the present invention replaces the bellows-shaped liquid storage container of a liquid supply tool with another liquid storage container, specifically a spout pouch liquid storage container, on whose surface information can be printed or displayed.This other liquid storage container is connected to the liquid ejection nozzle that was previously used via an adapter, making it possible to construct a liquid supply tool that is compatible with the spout pouch liquid storage container. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention provides a liquid supply device in which the above-mentioned liquid spray nozzle is connected to one end of an adapter and the spout of a spout pouch-type liquid storage container is connected to the other end, so that the liquid stored inside the spout pouch container can be smoothly and without leakage sucked up into the liquid spray nozzle and mixed with compressed air before being sprayed out, and the adapter is configured so that even if the liquid spray nozzle is tilted or turned upside down during the liquid spraying operation, the liquid can be smoothly sucked up from inside the container and sprayed out from the nozzle.

[0009] That is, the adapter of the present invention is an adapter connected to the connection port of a liquid storage container of a liquid ejection nozzle that has a connection port for connecting compressed air supply means and a liquid storage container, and is configured to introduce compressed air into the adapter to suck liquid from the liquid storage container, mix the liquid with the compressed air, and eject the mixed liquid from an ejection port, The nozzle has a nozzle connection port on one side that connects to the connection port of the liquid storage container of the liquid ejection nozzle, and a container lid on the other side that connects to the spout of another liquid storage container having a spout diameter different from that of the liquid storage container, and a hollow shaft with open ends protruding from the inside of the container lid parallel to the peripheral side of the container lid, and the shaft is long enough to pass through the spout of the other liquid storage container and reach the inside of the liquid storage container when the container lid is connected to the spout of the other liquid storage container.

[0010] According to this, the nozzle connection port of the adapter is connected to the connection port of the liquid storage container of the liquid ejection nozzle, and the spout of another liquid storage container made of a spout pouch is connected to the container lid portion of the adapter, and this is connected to the connection port of the compressed air supply means of the liquid ejection nozzle to form a liquid supply device. The operation of connecting the spout of the other liquid storage container to the container lid of the adapter is performed by inserting the stem provided on the inside of the container lid of the adapter into the spout of the other liquid storage container, and in a state where the spout is connected to the container lid, the stem penetrates the hollow interior of the spout of the other container and protrudes into the other container, with its tip reaching the inside of the other liquid storage container.

[0011] Then, by operating the compressed air supply means to blow compressed air into the liquid ejection nozzle, the liquid in the other liquid storage container is sucked into the nozzle through the shaft of the adapter placed inside the other liquid storage container, mixed with the compressed air, and ejected from the nozzle outlet at the tip of the nozzle. The shaft of the adapter inserted into the other liquid storage container serves as a shaft that supports the inside of the container and functions to maintain the shape and orientation of the container, preventing the container from bending or breaking, and allowing the stored liquid to be smoothly sucked up and delivered into the nozzle through the shaft. Note that the shaft can be formed with multiple holes on its outer surface to ensure efficient liquid suction.

[0012] If a spout pouch container is used as a liquid storage container, it is possible to print and display on its surface an explanation of the stored liquid and other handling instructions, so there is no need to create a label or shipping tag with the above explanation printed on it separately from the container.Furthermore, once all the stored liquid has been poured out and the container is empty, it can be disposed of as plastic waste, making it easy to handle.

[0013] In the liquid supply device having the above configuration, the compressed air supply means for blowing compressed air into the liquid ejection nozzle can be any appropriate device or instrument, such as a compressor or pump, that can be attached to the air inlet of the nozzle and capable of blowing compressed air. In addition, the present invention is adapted to use a container consisting of a spout pouch, which is another type of liquid storage container, instead of a bellows-shaped liquid storage container, but a liquid storage container of a form other than a spout pouch may also be used as long as it is capable of storing liquid inside and can dispense the liquid by connecting a spout to the liquid ejection nozzle or adapter. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is an external view of a liquid supply tool according to an embodiment of the present invention; [Figure 2] FIG. 2 is an external view of the liquid storage container of FIG. [Figure 3] FIG. 2 is an external view of the adapter in FIG. 1. [Figure 4] FIG. 2 is an enlarged view showing a schematic vertical cross section of the liquid ejection nozzle and adapter portion of FIG. 1. [Figure 5] FIG. 10 is a cross-sectional view of an outer appearance of another embodiment of the adapter. [Figure 6] FIG. 10 is a diagram showing the configuration of a conventional liquid supply tool. [Figure 7] 7 is an enlarged view showing a schematic vertical cross section of the liquid ejection nozzle portion of FIG. 6. [Figure 8] FIG. 7 is an external view of the liquid storage container of FIG. 6 after use. DETAILED DESCRIPTION OF THE INVENTION

[0015] A preferred embodiment of the present invention will be described with reference to the drawings. The following embodiments are merely examples for explaining the present invention, and the present invention is not limited to the embodiments.

[0016] 1 to 4 show one embodiment of the liquid supply tool of the present invention. As shown in the figure, the liquid supply device 1 comprises a liquid ejection nozzle 2, a compressed air supply means 3, a liquid storage container 5, and an adapter 6 connecting the liquid ejection nozzle 2 and the liquid storage container 5. The liquid storage container 5 is connected to the nozzle 2 via the compressed air supply means 3 and the adapter 6, and compressed air is introduced into the inside of the nozzle 2 to suck liquid from the liquid storage container 5 through the adapter 6, which is then mixed with the compressed air and ejected from the nozzle outlet of the nozzle 2.

[0017] The liquid ejection nozzle 2 is made of synthetic resin material and is integrally molded by injection molding. As shown in Figures 1 and 4, the nozzle has an outer shape in which a cylindrical neck 23 is disposed on the lower peripheral surface of a bell-shaped main body 21 that is turned sideways, and a cylindrical lid 22 of a larger diameter is disposed through this cylindrical neck 23, and flanges 24 protrude from both upper side edges of the lid 22 to the outer peripheral surface extending to the top of the main body 21.

[0018] 4, the main body 11 of the nozzle 1 has an outlet 2a formed in the center of its tapered tip end surface, and a hollow, wide opening at the rear end that serves as an air inlet 2b to which compressed air supply means 3 is connected, with the outlet 2a and air inlet 2b communicating with an air flow path 2c and a mixing flow path 2d provided therein. A recessed groove 2e is formed in the inner peripheral surface of the air inlet 2b, into which the outer peripheral portion of the air outlet 31 of the compressed air supply means 3 fits. The air flow path 2c has an inner diameter that gradually narrows from its rear end opening, which faces the air inlet 2b, toward its tip, with the smallest inner diameter at the tip opening, which connects to the mixing flow path 2d. The mixing flow path 2d has an inner diameter slightly larger than that of the tip opening of the air flow path 2c, and is connected to the outlet 2a. Both flow paths are arranged coaxially with the outlet 2a.

[0019] The lid portion 22 of the nozzle 2 has a cylindrical shape that fits onto the outside of a nozzle connection port 61 of an adapter 6, which will be described later, and is provided with a liquid inlet port 2f inside. The neck 23 of the nozzle 2 has a cylindrical shape with a smaller diameter than the lid 22 and is located between the lower peripheral surface of the main body 21 and the top of the lid 22. Its interior forms an opening that communicates with the liquid inlet 2f, and a liquid flow path 2g is provided at the center of the top surface of this opening, extending upward and connecting to the base portions that communicate with the mixing flow path 2d and air flow path 2c, intersecting at a substantially right angle. The inner diameter of this liquid flow path 2g gradually narrows from its lower opening surface facing the opening, with the smallest inner diameter being at its upper opening surface that connects to the mixing flow path 2d. The neck 23 is designed with a thickness such that its outer periphery is substantially flush with the tip surface of the main body 21 where the ejection port 2a is formed.

[0020] The compressed air supply means 3 is an air delivery device configured in a gun shape similar to the conventional one shown in Figure 6, and an air outlet 31 at the tip thereof is connected to the liquid ejection nozzle 2 so that when the trigger is pulled, compressed air delivered from a compressor (not shown) is supplied into the nozzle 2.

[0021] 2, liquid storage container 5 is a container made of a spout pouch, which stores a predetermined amount of liquid inside, and is configured so that when a cap for spout 51 located at the center of the top edge is removed, spout 51 can be connected to container lid portion 62 of adapter 6, which will be described later. As mentioned above, information such as a description of the stored liquid and instructions for handling the container is printed on the surface of liquid storage container 5.

[0022] The adapter 6 is formed in a cylindrical shape using a synthetic resin material, and as shown in Figures 3 and 4, has a nozzle connection port 61 on one side that fits internally into the peripheral surface of the lid portion 22 of the liquid spray nozzle 2, and a container lid portion 62 below this nozzle connection port 61 that fits externally into the spout 51 of the liquid storage container 5 consisting of a spout pouch, and a hollow cylindrical shaft portion 63 with open ends is provided on the inside of this container lid portion 62 so as to protrude downward parallel to the peripheral surface of the container lid portion 62. 4, the shaft 63 of the adapter 6 is provided with a length that allows it to penetrate the spout 51 of the liquid storage container 5 and reach the inside of the liquid storage container 5 when the spout 51 of the liquid storage container 5 is connected to the container lid 62. In addition, a plurality of holes 63a are formed in the lower end and outer peripheral surface of the shaft 63. As shown in FIG. 5, the adapter 6 may be formed by providing no hole 63a on the outer peripheral surface of the shaft portion 63, and by providing a through-hole only at the lower end of the shaft portion 63.

[0023] According to this, the nozzle connection port 61 of the adapter 6 is connected to the lid portion 22 of the liquid ejection nozzle 2, the spout 51 of the liquid storage container 5 is connected to the container lid portion 62 of the adapter 6, and the air ejection port 31 of the compressed air supply means 3 is connected to the air inlet 2a of the liquid ejection nozzle 2 to form the liquid supply device 1.

[0024] Then, by operating the compressed air supply means 3 to blow compressed air into the liquid ejection nozzle 2, the liquid in the liquid storage container 3 is sucked into the nozzle 2 through the shaft 63 of the adapter 6 placed inside the liquid storage container 5, mixed with the compressed air, and ejected from the ejection port 2a at the tip of the nozzle.

[0025] Since the shaft 63 of the adapter 6 is inserted into the liquid storage container 5, even if the nozzle 2 is tilted or overturned during the operation of spraying liquid from the liquid-spout nozzle 2, the shaft 24 acts as an axis that supports the inside of the liquid storage container 5, maintaining the shape and posture of the container, preventing the liquid storage container 5 from bending or breaking, and allowing the stored liquid to be smoothly sucked up and delivered into the nozzle through the shaft 63.

[0026] The illustrated embodiments of the present invention are merely examples, and the configurations of the liquid jet nozzle adapter and the liquid supply tool of the present invention are not limited to these. [Explanation of symbols]

[0027] 1 liquid supply tool, 2 liquid jet nozzle, 3 compressed air supply means, 4, 5 liquid storage container, 6 adapter

Claims

1. An adapter for connecting to the connection port of a liquid storage container of a liquid ejection nozzle, which is configured to have connection ports to which a compressed air supply means and a liquid storage container are respectively connected, introduce compressed air into the nozzle to suck liquid from the liquid storage container, mix the liquid with the compressed air, and eject the mixed liquid from an ejection port, An adapter for a liquid spray nozzle of a liquid supply device, characterized in that it has a nozzle connection port on one side that connects to the connection port of the liquid storage container of the liquid spray nozzle, and a container lid on the other side that connects to the spout of another liquid storage container having a spout diameter different from that of the liquid storage container, and a hollow shaft with open ends protruding from the inside of this container lid parallel to the peripheral side of the container lid, and the shaft is long enough to pass through the spout of the other liquid storage container and reach the inside of the liquid storage container when the container lid is connected to the spout of the other liquid storage container.

2. 2. An adapter for a liquid ejection nozzle according to claim 1, wherein the other liquid storage container is a liquid storage container consisting of a spout pouch, and the spout of this liquid storage container consisting of a spout pouch is configured to connect to the container lid portion.

3. a liquid ejection nozzle having a connection port for connecting a compressed air supply means and a liquid storage container, configured to introduce compressed air into the nozzle to suck liquid from the liquid storage container, mix the liquid with the compressed air, and eject the mixed liquid from an ejection port; The liquid jet nozzle adapter according to claim 2; a liquid storage container consisting of a spout pouch in which a liquid is stored; A liquid supplying tool comprising a compressed air supplying means.

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