Liquid ejection nozzle and liquid supply tool thereof

Abstract

The present invention relates to the technical field of liquid supply, and more particularly, to a liquid discharge nozzle and a liquid supply tool thereof, the liquid discharge nozzle having a discharge port connected to the tip thereof, an air introduction port connected to a compressed air supply mechanism at the other end thereof, and a cover part connected to a liquid storage container on the outer peripheral surface thereof, a liquid discharge nozzle having a liquid introduction port on the inside of the cover portion, the liquid discharge nozzle further having an air flow path communicating with the air introduction port, a liquid flow path intersecting the air flow path through the liquid introduction port, and a mixing flow path communicating with the discharge port from the portion where the liquid flow path intersects; the present invention replaces a conventional liquid storage container in which a wall surface is expanded and contracted in a corrugated shape, and uses a liquid storage container which is composed of a punched bag and on which information can be printed and displayed on the surface.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid supply, and in particular to a liquid ejection nozzle and a liquid supply tool thereof. Background Art

[0002] As a liquid supply tool for supplying cleaning liquid or spraying paint to a specified location, such as Figure 8 As shown, the following structure is known: a compressed air supply mechanism 3 and a liquid storage container 4 are connected to a liquid ejection nozzle 2, compressed air is introduced into the interior of the liquid ejection nozzle 2, liquid is sucked from the liquid storage container 4, mixed with the compressed air, and ejected from the ejection port 2a of the nozzle 2, refer to Japanese Patent Application Publication No. 2005-14339, and refer to Japanese Patent Application Publication No. 2007-245044.

[0003] In detail, the Figure 8 The compressed air supply mechanism 3 of the liquid supply tool 1 shown is a gun-shaped air delivery device similar to a painting air gun, and the air outlet 31 at the front end thereof is connected to the liquid discharge nozzle 2, and is configured so that when the trigger is pulled, the compressed air delivered from the compressor (not shown) is supplied to the nozzle 2. The liquid storage container 4 is a synthetic resin storage box having a bellows-type telescopic wall surface and storing liquid, and the injection port 41 at the upper portion thereof is mounted on the cover 22 of the liquid discharge nozzle 2. In addition, as shown in FIG. Fig. 9 As shown, the liquid ejection nozzle 2 has an air inlet 2b connected to a ejection port 2a at the front end of the nozzle body 21, an air inlet 2b connected to an air ejection port 31 of a compressed air supply mechanism 3 at the other end, and a liquid inlet 2f connected to an injection port 31 of a liquid storage container 3 at the bottom. Inside the nozzle, there are provided an air flow path 2c connected to the air inlet 2b, a liquid flow path 2g connected to the liquid inlet 2f and intersecting with the air flow path 2c, and a forming flow path 2d of each flow path 2d connected to the ejection port 2a from the intersection of the liquid flow path 2g. The liquid supply tool 1 of the structure described above makes the downstream side of the liquid flow path 2g a negative pressure state by blowing compressed air from the compressed gas supply mechanism 3 into the liquid ejection nozzle 2, thereby sucking the liquid in the liquid storage container 4 into the nozzle and mixing it with the compressed air, so that it is ejected from the ejection port 2a at the front end of the nozzle. In addition, if the peripheral wall surface of the liquid storage container 4 is reduced as the liquid inside flows out, the liquid is taken out and becomes empty, then as shown in Fig.10 As shown, the liquid ejecting nozzle 2 can be disposed of together with the plastic waste.

[0004] Therefore, the wall surface of the liquid storage container 4 used in the conventional liquid supply tool 1 is bent into a corrugated shape, so that, for example, instructions for the stored liquid, instructions for use, and instructions for disposal such as a method of disposal cannot be printed and displayed on the surface of the container. Therefore, when selling the liquid storage container 4, it is necessary to separately produce a label, a tag, a reduction label, a tag, etc. showing the above-mentioned disposal instructions and precautions, and attach it to the liquid storage container 4. If the above-mentioned label, etc. is produced separately from the liquid storage container 4, the product cost increases. In addition, it is necessary to manage the liquid storage container 4 and the above-mentioned label, etc. so that they are not separated during storage or transportation, which is very troublesome, and it is also necessary to ensure a large space for display. When discarding, the liquid storage container 4 and the above-mentioned label must be separated for disposal, which is also troublesome. Summary of the invention

[0005] The present invention is made in view of the problems in the prior art, and aims to use a liquid storage container made of a nozzle bag instead of a bellows-shaped liquid storage container of a liquid supply tool, and to construct a liquid ejection nozzle in a manner that can smoothly suck and eject liquid from the liquid storage container.

[0006] In order to solve the above problems, the present invention uses a liquid storage container made of a punched bag on which information can be printed and displayed, instead of the conventional liquid storage container having a wall surface that expands and contracts in a corrugated shape.

[0007] Moreover, when the injection port of the nozzle-type liquid storage container is connected to the above-mentioned liquid ejection nozzle to form a liquid supply tool, the liquid stored in the container is sucked into the liquid ejection nozzle smoothly and without leakage, mixed with the compressed gas and ejected, that is, the liquid ejection nozzle is formed in a manner that can smoothly suck up the liquid from the above-mentioned container and eject it from the nozzle.

[0008] That is, the liquid ejection nozzle of the present invention has a ejection outlet at the front end, an air inlet connected to a compressed air supply mechanism at the other end, and an injection port of a liquid storage container composed of a punching bag storing liquid on the outer peripheral surface. The nozzle has a cover portion that meshes with the outside, a liquid inlet port is provided on the inner side of the cover portion, and an air flow path connected to the above-mentioned air inlet port, a liquid flow path connected to the above-mentioned liquid inlet port and intersecting with the above-mentioned air flow path, and liquid inlets are provided at both ends of a mixing flow path connected to the above-mentioned ejection outlet from the intersection of the liquid flow paths, so that a hollow shaft portion protrudes parallel to the peripheral side surface of the cover portion from the intersection of the liquid flow path and the air flow path. The shaft portion has a structure in which, when the above-mentioned cover portion is connected to the injection port of the above-mentioned liquid storage container, the shaft portion has a length that is arranged to penetrate the injection port of the above-mentioned liquid storage container and reach the inside of the liquid storage container.

[0009] Thus, the liquid supply device is formed by connecting the injection port of the liquid storage container composed of a punching bag to the cover of the liquid ejecting nozzle and connecting the air ejection port of the compressed air supply mechanism to the air inlet.

[0010] The operation of connecting the injection port of the liquid storage container and the cover portion of the liquid ejecting nozzle is performed by causing the shaft portion of the liquid inlet arranged on the inner side of the cover portion to enter the injection port of the liquid storage container. When the injection port is connected to the cover portion, the shaft portion penetrates the hollow interior of the injection port and protrudes into the liquid storage container, and its front end reaches the interior of the liquid storage container. Moreover, if the compressed gas supply mechanism is operated to blow compressed air into the liquid ejecting nozzle, the liquid storage container on the downstream side of the liquid flow path inside the nozzle becomes in a negative pressure state, and the liquid in the liquid storage container is sucked into the nozzle through the shaft portion, mixed with the compressed air, and can be ejected from the ejection port at the front end of the nozzle.

[0011] A liquid storage container having an injection port connected to the cover portion of the liquid ejecting nozzle has an axis portion of a liquid inlet of the liquid ejecting nozzle inserted therein. Therefore, even if the nozzle is tilted or tipped over during the operation of ejecting liquid from the liquid ejecting nozzle, the axis portion serves as an axis supporting the inside of the container to maintain the shape and posture of the container. Therefore, the container will not bend or break, and the liquid stored through the axis portion can be smoothly sucked in and delivered to the nozzle.

[0012] The shaft portion may also have a plurality of holes formed on its outer peripheral surface to effectively absorb the liquid.

[0013] By using a bag-shaped container as a liquid storage container, instructions for the stored liquid and handling instructions can be printed and displayed on the surface, so there is no need to prepare labels and tags printed with the above instructions separately from the container. In addition, if the bag-shaped container is emptied by draining out all the stored liquid, it can be discarded as plastic garbage and can be easily handled.

[0014] In the liquid supply tool of the above structure, it is preferably constructed such that an air outlet connected to a compressed air supply mechanism is inserted into the inner side of the air inlet of the liquid ejecting nozzle, and a spiral groove is formed from the end of the above-mentioned air inlet to its inner surface, which is inserted into a protrusion on the outer peripheral surface of the air outlet of the above-mentioned compressed air supply mechanism, thereby embedding and fixing the liquid ejecting nozzle on the air outlet of the above-mentioned compressed air supply mechanism.

[0015] According to this structure, the liquid ejection nozzle can be embedded and fixed on the air ejection port of the compressed air supply mechanism by a simple operation, and the liquid ejection nozzle will not fall off even if the compressed air supply mechanism is tilted or turned upside down due to the compressed gas ejection operation of the compressed air supply mechanism. In addition, after using the liquid supply tool, it can be disassembled by a simple operation of rotating the liquid ejection nozzle or the compressed air supply mechanism to release the engagement between the protrusion and the groove.

[0016] In the liquid supply tool having the above structure, it is preferable that the outer surface of the liquid storage container formed of the bag-like object is covered with a container support to support the container.

[0017] The bag-shaped container made of bag film is flexible, so if the liquid supply tool is tilted or poured directly during use, the bag-shaped container may be deformed such as broken or crushed, thereby preventing the liquid from being ejected. As described above, by supporting the outer surface of the bag with the container support, the bag is kept in shape and is difficult to be broken or crushed, so that the liquid can be ejected smoothly.

[0018] In the liquid supply device of the above structure, the compressed air supply mechanism for blowing compressed air into the liquid ejection nozzle can use a suitable device or device such as a compressor or a pump installed at the air inlet of the nozzle and capable of blowing compressed air. In addition, the liquid ejection nozzle of the present invention corresponds to other liquid storage containers formed by the nozzle bag, but as long as the liquid can be stored inside and the injection port can be connected to the above liquid ejection nozzle to deliver the liquid, a container of a different form from the nozzle bag can also be used.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is an external view of a liquid supply tool according to an embodiment of the present invention.

[0022] Figure 2 yes Figure 1 Appearance diagram of the liquid ejection nozzle.

[0023] Figure 3 It is a magnified representation Figure 1FIG. 1 is a diagram of a schematic cross section of a liquid ejection nozzle.

[0024] Figure 4 yes Figure 1 Appearance diagram of the compressed air supply unit.

[0025] Figure 5 (A) is an enlarged view of the end of the air inlet of the liquid ejecting nozzle, and (B) is an enlarged cross-sectional view of the main parts for explaining the method of connecting the air inlet of the liquid ejecting nozzle and the air ejecting port of the compressed air supply mechanism.

[0026] Figure 6 yes Figure 1 Appearance diagram of the container support body.

[0027] Figure 7 yes Figure 1 Appearance diagram of a liquid storage container.

[0028] Figure 8 It is a diagram showing the structure of a conventional liquid supply device.

[0029] Fig. 9 It is a magnified representation Figure 8 FIG. 1 is a diagram of a schematic cross section of a liquid ejecting nozzle portion.

[0030] Fig.10 yes Figure 8 This is the appearance of the liquid storage container after use. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Figure 1 One embodiment of the liquid supplying tool of the present invention is shown.

[0033] As shown in the figure, the liquid supply tool 1 is composed of a liquid ejecting nozzle 2, a compressed air supply mechanism 3, a liquid storage container 5 and a container support 6. The compressed air supply mechanism 3 and the liquid storage container 5 are connected to the nozzle 2, compressed air is introduced into the interior of the nozzle 2, liquid is sucked from the liquid storage container 5, mixed with the compressed air, and ejected from the nozzle 2.

[0034] The liquid ejection nozzle 2 is made of synthetic resin material and is integrally formed by injection molding. Figure 2 and Figure 3As shown, on the lower circumferential surface of the horizontal bell-shaped main body 21, a cylindrical cover 22 with a larger diameter than the main body 21 is arranged via a cylindrical neck 23, thereby forming an outer shape in which a flange 22a protrudes from the upper side edges of the cover 22 throughout the upper outer circumferential surface of the main body 21.

[0035] In detail, Figure 2 As shown, the main body 11 of the nozzle 1 is formed with a jet port 2a at the center of its tapered front end surface, and the rear end is widely opened in a hollow shape as an air inlet 2b connected to the compressed air supply mechanism 3. The jet port 2a and the air inlet 2b are connected through an air flow path 2c and a mixing flow path 2d provided inside. A groove portion that fits with the outer periphery of the air jet port 31 of the compressed air supply mechanism 3 is formed on the inner peripheral surface of the air inlet 2b.

[0036] The inner diameter of the air flow path 2c gradually narrows from the rear end opening surface facing the air inlet 2b to the front end side, and the inner diameter of the front end opening surface connected to the mixing flow path 2d is set to be the smallest. The mixing flow path 2d is set to have an inner diameter slightly larger than the front end opening surface of the above-mentioned air flow path 2c, and is connected to the ejection port 2a. The two flow paths are arranged on the same axis as the ejection port 2a.

[0037] The cover portion 22 of the nozzle 2 is formed into a cylindrical shape that is externally engaged with the injection port 51 of the liquid storage container 5, and a liquid inlet 2f is provided inside the cover portion 22 to be inserted into the inner periphery of the injection port 51. A shaft portion 24 described later is integrally provided at the front end of the liquid inlet 2f.

[0038] The neck 23 of the nozzle 2 is formed into a cylindrical shape with a diameter smaller than that of the cover 22, and is arranged between the lower peripheral surface of the main body 21 and the top of the cover 22. The inside of the neck 23 is an opening connected to the liquid inlet 2f, and a liquid flow path 2g is arranged at the center of the top surface of the opening. The liquid flow path 2g is connected to the root part extending upward and connected to the mixing flow path 2d and the air flow path 2c at a substantially right angle. The inner diameter of the liquid flow path 2g gradually narrows from the lower end opening surface facing the above-mentioned opening, and the inner diameter of the upper end opening surface connected to the mixing flow path 2d is set to the minimum. The outer peripheral surface of the neck 23 is set to be roughly the same as the thickness of the front end surface of the main body 21 formed with the ejection port 2a.

[0039] In addition, at the front end of the liquid inlet 2f provided inside the cover 22 of the nozzle 2, a hollow shaft 24 with upper and lower ends opened is projected downward from the portion where the liquid flow path 2g intersects with the air flow path 2c and is parallel to the peripheral side surface of the cover 22. Specifically, Figure 3As shown, the shaft portion 24 is provided with a length such that the shaft portion 24 passes through the injection port 51 of the liquid storage container 5 and the lower end reaches the inside of the liquid storage container 5 when the cover portion 22 is connected to the injection port 51 of the liquid storage container 5. In addition, a plurality of holes 24a are formed at the lower end and the outer peripheral surface of the shaft portion 24.

[0040] The compressed air supply mechanism 3 is similar to the device of the above-mentioned existing example, and is a gun-shaped air delivery device, and the air outlet 31 at its front end is connected to the liquid spray nozzle 2, and is arranged so that when the trigger is pulled, the compressed air delivered from the compressor not shown in the figure is supplied to the nozzle 2.

[0041] In addition, if Figure 4 As shown, a protrusion 32 is provided on the outer peripheral surface of the air outlet 31 of the compressed air supply mechanism 3, and the protrusion 32 is provided so that the end portion is inserted into the air inlet 2b of the nozzle 2 to connect and fix the air outlet 31 of the compressed air supply mechanism 3 on the nozzle 2.

[0042] In detail, Figure 5 As shown in FIG. A, a groove 2h engaging with the protrusion 32 is formed at the end of the air inlet 2b of the nozzle 2. The groove 2h spirally extends from the end to the inner surface of the air inlet 2b. As shown in FIG. (B), when the air ejection port 31 of the compressed air supply mechanism 3 is connected to the air inlet 2b of the nozzle 2, the protrusion 32 is engaged with the groove 2h, and the air ejection port 31 is inserted into the air inlet 2b. At the same time, the nozzle 2 or the compressed air supply mechanism 3 is rotated so that the protrusion 32 is engaged with the groove 2h, and the air ejection port 31 is engaged and connected to the air inlet 2b, thereby fixing the air ejection port 31 on the air nozzle 31.

[0043] When the nozzle 2 is removed after using the liquid supply tool 1 , if the nozzle 2 or the compressed air supply mechanism 3 is rotated in the opposite direction to the above, the engagement between the protrusion 32 and the groove 2 h is disengaged, and the nozzle 2 can be easily separated from the compressed air supply mechanism 3 .

[0044] like Figure 6 As shown, the liquid storage container 5 is a container made of a punching bag, in which a predetermined amount of liquid is stored. The cover of the injection port 51 provided at the center of the upper side thereof is removed so that the injection port 51 can be connected to the cover portion 22 of the liquid ejection nozzle 2. As described above, information such as the description of the stored liquid and the handling instructions of the container are printed on the surface of the liquid storage container 5. A label printed with information may also be attached to the surface.

[0045] The container support 6 is formed of a synthetic resin material or other elastic material. Figure 1 and Figure 7As shown, it is composed of a ring portion 61 with a C-shaped cross-section installed on the outer surface of the injection port 51 of the liquid storage container 5, and legs 62, 62 branching downward to the left and right on the front and rear sides of the ring portion 61. When the ring portion 61 is embedded in the outer surface of the injection port 51 of the liquid storage container 5, the legs 62, 62 cover the front and rear surfaces of the liquid storage container 5 to press the two surfaces.

[0046] Since the love liquid storage container 5 made of a splash bag is very flexible, if the liquid supply tool 1 is directly tilted or poured during use, the splash bag is easily deformed such as breaking or flattening. However, by covering the splash bag with the container support 6 and pressing its surface with the feet 62, 62, the splash bag is kept in shape and is difficult to break or flatten, and the stored liquid can be smoothly sprayed out.

[0047] According to this method, a liquid supply device 1 is formed by connecting the injection port 51 of the liquid storage container 5 to the cover portion 22 of the liquid ejecting nozzle 2 and connecting the air ejection port 31 of the compressed air supply mechanism 3 to the air inlet 2b. If the compressed gas supply mechanism 3 is operated to blow compressed air into the liquid ejecting nozzle 2, the downstream side of the liquid flow path 2g inside the nozzle becomes in a negative pressure state, and the liquid in the liquid storage container 5 is sucked into the nozzle through the shaft portion 24 arranged inside the liquid storage container 5, and can be ejected from the front end of the air nozzle compression port 2a.

[0048] The liquid storage container 5 having an injection port 51 connected to the cover portion 22 of the liquid ejecting nozzle 2 has an axis portion 24 protruding from the liquid inlet 2f of the liquid ejecting nozzle 2 inserted therein. Therefore, even if the nozzle 2 is tilted or tipped over during the operation of ejecting liquid from the liquid ejecting nozzle 2, the axis portion 24 serves as an axis supporting the inside of the container 5 to maintain the shape or posture of the container 5. Furthermore, even if the outer surface of the liquid storage container 5 is covered with a container support 6 and the container surface is supported by the legs 62, 62, it will not bend or bend, and the liquid stored in the passage portion 24 can be sucked up and delivered to the above-mentioned nozzle 2 without retention.

[0049] The illustrated method of the present invention is an example, and the components constituting the liquid ejection nozzle and the liquid supply tool of the present invention are not limited thereto; that is, it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A liquid spraying nozzle, characterized in that: The liquid ejection nozzle has an ejection port connected at the front end, an air inlet for connecting to a compressed air supply mechanism at the other end, a cover for connecting to a liquid storage container on the outer peripheral surface, a liquid inlet on the inner side of the cover, and an air flow path connected to the air inlet, a liquid flow path intersecting the air flow path through the liquid inlet, and a mixing flow path connected to the ejection port from the intersection of the liquid flow path. The liquid inlet port has a hollow shaft portion, the upper and lower ends of the hollow shaft portion are set to be openings, the hollow shaft portion is set to extend from the liquid flow path to the peripheral side surface protruding from the cover portion, and the hollow shaft portion is also set to have a length that penetrates the injection port of the liquid storage container and reaches the inside of the liquid storage container when the cover portion is connected to the injection port of the liquid storage container.

2. A liquid spraying nozzle according to claim 1, characterized in that: A groove is provided from the end of the air inlet to its inner surface, and the compressed air supply mechanism has an air outlet with a protrusion on the outer peripheral surface, and the groove is provided at a position where the protrusion on the outer peripheral surface of the air outlet can be opened.

3. A liquid supply tool, characterized in that: The liquid ejection nozzle according to claim 1, a liquid storage container, and a compressed gas supply mechanism are formed, wherein the liquid storage container is formed by a punching bag storing liquid.

4. A liquid supply tool according to claim 3, characterized in that: Also included is a container support that supports the outer surface of the liquid storage container.

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