JPH0417251Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a jetting device for fluids such as liquids and pastes, and particularly relates to a stopper portion for preventing erroneous operation of the jetting head in a fluid spouting device. .

[Conventional technology]

Conventionally, fluid ejecting devices equipped with this type of stopper are known, such as those described in Japanese Utility Model Application Publication No. 10866/1986 and those described in Japanese Utility Model Application Publication No. 48362/1988.

In the former case, as shown in FIG.
A spring inside urges the piston tube 2 to a raised position, and a jetting head 4 is provided at the tip of the piston tube 2, and the screw tube 12 also serves as a device to prevent the piston tube 2 from coming off from the cylinder 1. It is screwed onto the mouth of the container, and the upper part, middle part, and
An annular groove 21 is formed in the lower part, and this annular groove 21
As shown in FIG. 4, the stopper piece 22 is made of a ring cut out on one side and provided with a handle. When installed in the groove 21, the stopper 22 gets caught on the threaded cylinder 12, making it impossible to push the ejection head 4.

Next, in the latter case, the ejection head 4 is fitted into the screw tube 12, and a stopper 23 is provided protruding from the circumferential surface of the ejection head 4. Two slits 24 are formed in the vertical direction, and the ejection head 4 cannot be pushed unless the ejection head 4 is rotated to align the stopper 23 with one of the slits 24 and the ejection head 4 is pushed.

[Problem that the invention attempts to solve]

However, in the former case, the stopper piece 22 must be attached to and removed from the annular groove 21, which is troublesome to operate, and there is a risk that the stopper piece 22 may be lost.

In the latter case, there is no risk of losing the stopper 23, but the stopper 23 can be removed by turning the spouting head 4.
3 must be aligned with the slit 24, making the operation troublesome.

The present invention was devised in view of these points, and its technical problem is to facilitate the operation of a stopper in a fluid ejecting device.

[Means for solving problems]

In order to solve the above-mentioned technical problem, the present invention provides a device main body attached to the mouth of a container with a spouting head 4 which is normally biased to an upward position by a spring and is movable up and down. The following technical measures have been taken in a fluid ejecting device in which a nozzle pipe 5 is provided in a protruding manner and fluid in a container is ejected from the nozzle pipe 5 by vertical movement of the ejecting head 4.

That is, the upright plate 13 is set up from the apparatus main body side toward the nozzle pipe 5 side of the ejection head 4. This upright plate 13 may be of any shape as long as it is interposed between the device main body 12 and the nozzle pipe 5 of the ejection head 4 and forms a slit 14 for forming a stopper. A cylindrical cover 13 into which the ejection head 4 is inserted may be formed.

Then, a vertical slit 14 is formed in a portion of the upright plate 13 corresponding to the nozzle pipe 5, into which the nozzle pipe 5 is inserted. The width of this slit 14 is wide at the top and narrow at the bottom, and there is a stepped portion at the border.
form 5.

Furthermore, the diameter of the nozzle pipe 5 is determined by the slit 14.
Form smaller than the width of the bottom of the. A spouting pipe 7 having a diameter smaller than the width of the upper part of the slit 14 and larger than the width of the lower part of the slit 14 is attached to this nozzle pipe 5.
is fitted onto the outside so that it can slide forward and backward.

Further, retaining portions 6a and 6b that engage with each other are provided on the outer surface of the tip end of the nozzle pipe 5 and the inner surface of the proximal end of the spouting tube 7, respectively, to form a fluid ejecting device.

[Effect]

Even if you push the spouting head 4 with the spouting pipe 7 slid toward the back of the nozzle pipe 5, the spouting pipe 7 inside the slit 14 will catch on the step 15, so it will act as a stopper and stop the spouting. Head 4 does not descend.

Then, when the spouting pipe 7 is pulled out until its retaining part 6b is caught on the retaining part 6a of the nozzle pipe 5, the nozzle pipe 5 is located in the slit 14, so the spouting head 4 is pushed. Tokonozzle pipe 5
is not caught by the stepped portion 15, and the ejection head 4 continues to descend.

Note that a stopper 9 may be provided in the spouting tube 7 to open and close the nozzle hole at the tip of the nozzle tube 5 by sliding the spouting tube 7 back and forth. However, in this case, it is necessary to form a spouting passage 10 around the stopper 9. This prevents the ejection head 4 from malfunctioning when not in use, and also prevents the inside of the ejection device from drying out.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

This fluid ejecting device is of a pump type, and a piston pipe 2 is inserted into a cylindrical cylinder 1 so as to be movable up and down, and a suction pipe 3 is connected to the lower end of the cylinder 1. Further, the piston pipe 2 is urged upward by a spring (not shown) provided within the cylinder 1, and an ejection head 4 is provided at its upper end. As a result, it can be said that the ejection head 4 is urged to the upper position by the spring. Furthermore, a nozzle pipe 5 is protruded from one side of the ejection head 4, and the nozzle pipe 5 has an annular protrusion 6a on the outer periphery of its tip as a stopper.

Further, a spouting pipe 7 is slidably fitted onto the nozzle pipe 5, and an annular recess 8 is formed on the inner surface of the proximal end portion of the spouting pipe 7, which determines the width of movement of the spouting pipe 7. As a result, an annular convex portion 6b is formed on the inner edge of the proximal end of the spouting tube 7 as a retaining portion.

Furthermore, a stopper 9 for opening and closing the nozzle hole at the tip of the nozzle pipe 5 is provided at the center of the spouting pipe 7, and a plurality of spouting passages 10 are formed around the stopper 9. In addition, a knurling 11 is provided on the outer periphery of the tip of the spouting tube 7.
is formed.

The cylinder 1 is inserted into the mouth and neck of a container (not shown), and is fixed to the mouth and neck by a threaded tube 12 serving as a main body of the device that is screwed into the mouth and neck. A cylindrical cover 13 serving as an upright plate is erected on the upper part of the screw cylinder 12, and the ejection head 4 is inserted into the upper end of this cylindrical cover 13.

A vertical slit 14 is formed in the upper part of the cylindrical cover 13 corresponding to the nozzle pipe 5, into which the nozzle pipe 5 is inserted. This slit 1
The width of the slit 4 is wide at the top and narrow at the bottom, forming a step 15 at the boundary. Specifically, the upper part of the slit 14 is larger than the diameter of the spouting pipe 7, and the lower part is larger than the diameter of the spouting pipe 7. The width is between the diameter of the tube and the diameter of the nozzle tube 5. Looking at this in reverse, the diameter of the nozzle pipe 5 is formed smaller than the width of the lower part of the slit 14, and the diameter of the spouting pipe 7 is smaller than the width of the upper part of the slit 14 and larger than the width of the lower part of the slit 14. In other words, it is formed. Further, on the other side of the cylindrical cover 13 opposite to the slit 14, a notch 16 for hooking a finger to the ejection head 4 is formed.

When the fluid ejecting device is not used, the spouting pipe 7 is pushed and slid toward the back of the nozzle pipe 5. At this time, the stopper 9 in the spouting tube 7 closes the nozzle hole at the tip of the nozzle tube 5. Therefore, the interior of the device is prevented from drying out, and there is no risk of the remaining liquid in the nozzle pipe 5 spilling out. Even if the ejection head 4 is pushed in this state, the ejection pipe 7 in the slit 14 is caught on the stepped portion 15, so it acts as a stopper and the ejection head 4 does not descend.

Then, when the spout tube 7 is pulled out until its annular convex portion 6b is caught on the annular convex portion 6a at the tip of the nozzle tube 5, the nozzle hole that was blocked by the stopper 9 is opened, and the slit is opened. Since the nozzle pipe 5 is located inside the cylinder 1, when the ejection head 4 is pushed, the nozzle pipe 5 does not get caught on the stepped part 15, and the ejection head 4 descends as it is, and the piston pipe 2 moves inside the cylinder 1. descend. By repeating this vertical movement, the device acts as a pump, and the fluid in the container is poured out from the spouting pipe 7 through the nozzle pipe 5 and the spouting path 10.

Note that the retaining portions 6a and 6b provided on the nozzle pipe 5 and the spouting pipe 7 are not limited to those of the embodiment, as it is sufficient that they can mesh with each other and prevent the spouting pipe 7 from coming off from the nozzle pipe 5. One side may be a convex portion and the other may be a concave portion.

[Effect of idea]

According to the present invention, the stopper can be activated or released only by moving the spout tube 7 forward or backward, so the operation is extremely easy and user-friendly.

Moreover, since the pouring pipe 7 protrudes forward from the nozzle tube 5 during use, it is easy to pour out the fluid.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing an embodiment of the present invention, Fig. 2 is an exploded perspective view thereof, Fig. 3 is a partially longitudinal sectional front view showing a conventional fluid ejecting device, and Fig. 4 is a stopper piece thereof. FIG. 5 is a perspective view showing another conventional example. 4... Ejection head, 5... Nozzle pipe, 6a, 6
b... Annular convex part as a stopper part, 7... Pour pipe,
12...Threaded tube as the device main body, 13...Cylindrical cover as an upright plate, 14...Slit, 15
...Stepped portion, 16...Notch for finger rest.

Claims (1)

[Scope of claims for utility model registration] (1) Device main body 12 attached to the mouth of the container
A jetting head 4 which is normally biased to an upper position by a spring is provided so as to be movable up and down, and a nozzle pipe 5 is provided protruding from this jetting head 4. In a fluid ejecting device that ejects fluid from a nozzle pipe 5, an upright plate 13 is provided upright from the device main body 12 side toward the nozzle pipe 5 side of the ejection head 4, and the upright plate 13 corresponds to the nozzle pipe 5. A vertical slit 14 is formed in the part where the nozzle tube 5 is inserted, and the slit 14 is wide at the top and narrow at the bottom, forming a step 15 at the border. The diameter of the nozzle pipe 5 is formed to be smaller than the width of the lower part of the slit 14, and a spouting pipe 7 whose diameter is smaller than the width of the upper part of the slit 14 and larger than the width of the lower part of the slit 14 is slid forward and backward into the nozzle pipe 5. A fluid spouting device characterized in that retaining portions 6a and 6b are movably fitted onto the outside and engage with each other on the outer surface of the tip end of the nozzle tube and the inner surface of the proximal end of the spouting tube 7, respectively. (2) The upright plate forms a cylindrical cover 13 into which the ejection head 4 is inserted, and the ejection head 4 is placed on the other side of the cylindrical cover 13 opposite to the slit 14.
2. The fluid extracting device according to claim 1, wherein a notch 16 for a finger to be placed is formed.