JPH06345113A - Disinfectant injector - Google Patents

Abstract

PURPOSE:To provide a disinfectant injector which accurately feeds every constant volume of an disinfectant at every operation and prevents the disinfectant from dropping. CONSTITUTION:A disinfectant injector 20 is provided with a screw cap 25 having an inner screw 38 engaged with an outer screw provided at the opening of a disinfectant container, a pair of valve seats 22, 32 provided with a specified interval in the screw cap 25, a ball 40 provided between the valve seats 22, 32, so as to freely slide in the screw cap 25. A pushing bar 42 to shift the ball 40 and a coil spring 50 to press the ball 40 on the taper inner face 22a of the valve seat 22 in the pushing bar 42 side are provided. When the pushing bar 42 is not operated, since the ball 40 is always pressed on the taper inner face 22a, the tightness in the screw cap is secured and hence, the disinfectant is surely prevented from dropping.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispenser for supplying a fixed amount of liquid, and more particularly to a disinfectant liquid dispenser which is preferably used for supplying a fixed amount of disinfectant liquid.

[0002]

2. Description of the Related Art Conventionally, as a dispenser used as a part of a disinfectant solution supply device installed in a toilet or a hospital for disinfecting fingers, it is attached to the mouth part of a disinfectant solution container by a push rod. Dispensers configured to open a valve provided in the liquid flow path when driven are known. This disinfectant solution supply device is configured so that the dispenser is located below the disinfectant solution container, and when the push rod of this dispenser is pushed up from the bottom to the top of the disinfectant solution container, The disinfecting liquid of (1) naturally falls downward through the liquid flow path.

However, in this type of dispenser, as long as the push rod is continuously pushed up from the bottom, the disinfectant solution in the disinfectant solution container continues to drop downward due to the opening of the valve, so that the supply amount of the disinfectant solution is reduced. There was no choice but to rely on the user's can, and it was difficult to supply the disinfectant solution in a fixed amount each time the operation was performed.

[0004]

Therefore, the main technical problem to be solved by the present invention is to provide a disinfectant solution dispenser for accurately supplying a predetermined amount of disinfectant solution for each operation. is there.

In addition to the above technical problems, another technical problem is to provide a disinfectant liquid dispenser for effectively preventing the disinfection liquid from falling off.

[0006]

In order to solve the above problems, according to the present invention, the following disinfectant liquid dispenser is provided.

That is, this disinfectant liquid dispenser is a screw cap having a through hole having a substantially circular inner peripheral surface, which is provided at substantially the center of the inner peripheral surface and is axially spaced from each other by a predetermined distance. In addition, a pair of valve seats each having a taper surface that is tapered so as to narrow inward toward each opening end of the screw cap and an external screw formed on the outer peripheral surface of the mouth of the disinfectant solution container are screwed together. A ball for forming a valve in cooperation with the above-mentioned taper surface of each valve seat, which is provided between a pair of valve seats, and a screw cap having an inner screw formed on the inner peripheral surface of one end thereof. And a valve seat disposed in the opening at the other end of the screw cap so as to be movable within a predetermined area in the axial direction and having the ball located at the other end side to a valve seat located at the one end side. Moved A push rod having an axial groove so that a flow path is formed between the push rod and the inner peripheral surface of the opening at the other end, and the push rod suspended at the other end. .

In the above structure, the disinfectant solution container is installed so that the disinfectant solution dispenser is on the bottom. At this time, the ball inside the screw cap falls under the action of gravity and is pressed against the tapered surface of the valve seat located on the push rod side to close the valve, and at the same time, the disinfectant solution in the disinfectant solution container It flows downwards and fills the space area within the screw cap closed by the valve.

In this state, by pushing up the push rod until it stops, the ball provided in the screw cap is pushed by the push rod to move upward, and is pressed against the taper surface of the valve seat located on the push rod side. While the valve formed as a result is released, the other valve is closed by pressing against the tapered surface of the valve seat located on the inner screw side of the screw cap. At this time, the disinfectant liquid filled between the pair of valve seats in the screw cap flows downward and is formed between the inner peripheral surface of the screw cap opening located on the push rod side and the groove provided in the push rod. The disinfectant solution is supplied to the palm of the operator through the above-mentioned flow path.

Next, when the operator releases the palm from the push rod, the push rod and the ball simultaneously drop downward, and the ball is pressed against the tapered surface of the valve seat located on the push rod side to close the valve. At the same time, the antiseptic solution in the antiseptic solution container flows downward and refills the space area in the screw cap closed by the valve.

That is, with the above-described structure, each time the push rod is pushed up, a certain amount of disinfecting liquid corresponding to the space volume in the screw cap surrounded by the pair of valve seats is supplied.
In the above structure, a spring means for urging the ball toward the tapered surface of the other end side valve seat of the screw cap is provided between the one end side valve seat of the screw cap and the ball. It is preferable to provide.
As the spring means, for example, a coil spring or the like is used, and it is particularly preferable to use a conical compression spring.

With this structure, the ball is always forcibly urged against the taper surface of the valve seat on the other end of the screw cap, and as a result, the disinfectant solution is operated by one operation of the push rod. If a small amount of foreign matter is caught between the ball and the taper surface of the valve seat on the other end side of the screw cap when a certain amount of The taper surface of the valve seat is crushed to ensure the tightness of the screw cap, and effectively prevents the disinfection solution from falling off.

Further, the disinfectant solution container equipped with the disinfectant solution dispenser of this structure is provided in, for example, a mobile carrier or the like installed in a toilet, a hospital or the like, and the disinfectant solution dispenser is installed while the carrier is moving. When operated, the ball is always forcibly urged against the tapered surface of the valve seat on the other end side of the screw cap, that is, the ball is reliably positioned with respect to the tapered surface. , It is possible to prevent the disinfection solution from falling off.

Furthermore, when the disinfectant solution dispenser of this construction is used by mounting it on an unused disinfectant solution container, the disinfectant solution dispenser is mounted on the disinfectant solution container with the push rod up. After that, the disinfectant solution container is inverted, and as described above, the disinfectant solution container is installed so that the disinfectant solution dispenser is at the bottom. When the disinfectant solution container is inverted, the disinfectant solution in the disinfectant solution container moves from the container into the screw cap due to its own weight, but the ball is always on the other end side valve seat of the screw cap both before and after reversing the disinfectant solution container. Since the taper surface is forcibly biased to ensure the airtightness inside the screw cap, the disinfection solution can be surely prevented from dropping during the reversal.
That is, when the disinfectant solution dispenser is not provided with the spring, when the disinfectant solution container is inverted, the balls move from the taper surface of the valve seat on the one end side to the valve seat on the other end side of the screw cap. The disinfectant solution moves into the screw cap before it moves to the taper surface, and the disinfectant solution moves into the screw cap between the inner peripheral surface of the other end side opening of the screw cap and the push rod. There is a possibility that it will pass through the gap and fall outside.

[0015]

Embodiments of the present invention will be described in detail below with reference to FIGS.

First, a first embodiment will be described with reference to FIGS.

FIG. 1 is a use state diagram showing an example of use of the disinfecting liquid dispenser 20 according to the first embodiment. As shown in the figure, this disinfectant solution dispenser 20 includes a mouth 2 a of the disinfectant solution container 2.
Attached to a liquid reservoir 5b and fixed to the peripheral portion of the liquid reservoir 5b with bolts 8 and nuts 10 as shown in the figure, and the disinfectant liquid dispensed. It is used by being attached to the disinfecting liquid support device 5 including a hood 5a having an opening into which the container 20 can be fitted.

The structure of the disinfecting liquid dispenser 20 will be described with reference to FIGS.

FIG. 2 is a half sectional view of the disinfecting liquid dispenser 20, and FIGS. 3 and 4 are the disinfecting liquid dispenser 20 shown in FIG. 2, respectively.
3 is a front view of the push rod 42 provided in the vehicle and IV-I in FIG.
It is a V line sectional view. In FIG. 2, 25 is a screw cap having a through hole having a substantially circular inner peripheral surface, 40 is a metal ball arranged in the through hole 20, and 42 is a slide in one end opening of the screw cap 25. It is a push rod provided freely.

This screw cap 25 is a first screw having an inner peripheral surface with an inner screw 38 for engaging with an outer screw provided on the mouth 2a of the disinfectant solution container 2 to be mounted as shown in FIG. A cap portion 25a and an elliptical flange-shaped protruding portion 26 having an outer diameter larger than the outer diameter of the first cap portion 25a are provided on the side of the first cap portion 25a and smaller than the inner diameter of the first screw cap portion 25a. It is composed of a second screw cap portion 25b having an inner diameter, and the end portion of the first screw cap portion 25a on the second screw cap portion 25b side is fixed to the projecting portion 26 of the second screw cap portion 25b. . By providing the overhanging portion 26 in this manner, the disinfectant solution dispenser 20 can be easily screwed into the disinfectant solution container 2 when it is mounted.

At the end of the first screw cap portion 25a on the side of the second screw cap portion 25b, the inner diameter is smaller than the outer diameter of the ball 40, and the first screw cap portion 25a is narrowed inward on the side opposite to the second screw cap portion. A first valve seat 32 having a hollow inner peripheral surface formed as a tapered inner surface 32a is provided, while
The inner peripheral surface of the second screw cap portion 25b, which is separated from the first valve seat 32 by a predetermined distance, has an inner diameter smaller than the outer diameter of the ball 40 and the anti-first screw cap portion 25a.
It is formed as a second tapered inner surface 22a that is narrowed inward in the direction. The ball 40 is located between the first and second valve seats 32 and 22, and when the ball 40 is pressed against the valve seats 32 and 22, the ball 40 and the first valve seat 32, or The ball 40 and the second valve seat 22 cooperate with each other to form a valve.

The second screw cap portion 25b has a second
As shown in the figure, the inner peripheral surface of the valve seat 22 near the first screw cap portion 25a has a diameter substantially corresponding to the large-diameter inner peripheral surfaces of the first and second tapered inner surfaces 22a and 32a, and has a screw thread. A plurality of guide walls 30 having an edge formed substantially parallel to the axial center line of the cap 25 are provided, whereby the ball 40 moves between the first and second valve seats 32, 22. The screw cap 25 is guided so as to move substantially parallel to the axial center line.

The push rod 42 is arranged in the opening end of the second screw cap portion 25b located on the side opposite to the first screw cap portion with respect to the second valve seat 22. As shown in FIG. 2, a shoulder portion 36 projecting inward in the radial direction is provided at a predetermined position on the inner surface of the opening of the second screw cap portion 25b, while the push rod 42 is shown in FIG. And a flange 34 that is fixed to the main body portion 35 and that is locked to the shoulder portion 36 of the second screw cap portion 25b and that is configured to be larger than the diameter of the main body portion 35. To be done. This body portion 35 is shown in FIG.
As shown in the figure, the cross-section is
As shown in FIG. 2, the push rod 42 has the second screw cap portion 2
In the state of being mounted on 5b, a gap as a liquid flow path is formed between the inner peripheral surface of the open end of the second screw cap portion 25 and the main body portion 35 of the push rod 42.

FIG. 1 shows a state in which the disinfectant solution dispenser 20 having the above-described structure is attached to the mouth portion 2a of the disinfectant solution container 2 and set in the disinfectant solution container supporting device 5. . In the figure, reference numeral 6 denotes an insertion opening for inserting the operator's hand into the device 5. The present apparatus is used by the operator inserting his / her hand through the insertion opening 6 and pushing up the push rod 42 from below with the palm of the hand facing upward.

When the dispenser 20 is set in the disinfectant solution container 2 as shown in FIG. 1, the ball 40 is naturally dropped, as shown in FIG.
Is in pressure contact with the second tapered inner surface 22a of the second valve seat 22, and the valve is closed. At this time, the disinfectant solution 2 contained in the disinfectant solution container 2 is filled in the screw cap 25 sealed by the valve. In this state, if the push rod 42 is pushed upward until it stops, as shown by the alternate long and short dash line in FIG.
0 is also pushed up to release the valve, while the ball 40 is pressed against the first tapered inner surface 32a of the first valve seat 32 provided on the first screw cap portion 25a to close the other valve. . Thereby, the screw cap 25 surrounded by the first and second valve seats 32 and 22.
The fixed amount of the disinfectant liquid filled in the inner space, that is, the fixed amount chamber 28 is transferred to the inner peripheral surface of the second screw cap portion 25b,
The disinfectant solution in the disinfectant solution container 2 flows downward through the liquid flow path formed between the push rod 42 and the main body portion 35 which is in sliding contact with the inner peripheral surface, while the disinfectant solution in the disinfectant solution container 2 is discharged.
I try not to flow into it.

Then, when the palm is released from the push rod 42,
At the same time, the ball 40 and the push rod 42 spontaneously fall downward, and the ball 40 is pressed against the second tapered inner surface 22a of the second valve seat 22 to close the valve. At this time, the disinfectant solution in the disinfectant solution container flows downward and the metering chamber is refilled with the disinfectant solution.

Next, a second embodiment will be described with reference to FIG.

FIG. 5 is an enlarged view of a half section of the disinfecting liquid dispenser according to the second embodiment. The disinfecting liquid dispenser according to the second embodiment has the same basic structure as the disinfecting liquid dispenser according to the first embodiment except for the coil spring 50 provided between the first screw cap portion 25a and the ball 40. Each member having a configuration and corresponding to the same basic configuration is denoted by the same reference numeral as that used to indicate each member of the disinfecting liquid dispenser of the first embodiment. As shown in the figure,
The coil spring 50 has a large-diameter end portion formed on the first valve seat 32 side larger than the diameter of the first tapered inner surface 32a of the first valve seat 32, and on the ball 40 side smaller than the diameter of the ball 40. Is formed as a conical compression spring having a small diameter end portion formed to be small, and the large diameter end portion has a first taper inner surface 32a of the first valve seat 32 on a surface facing the guide wall 30 of the first valve seat 32. The small diameter end portion is pressed against a part of the outer peripheral surface of the ball 40 while being pressed against the second valve seat 2 while surrounding the ball 40.
The second tapered inner surface 22a is biased. As described above, by configuring the coil spring 50 as a conical compression spring, the ball 40 is not hindered by the movement of the coil spring.
Is a second taper inner surface 22a of the second valve seat 22, and
It can freely move between the first taper inner surface 32a of the first valve seat 32. In the figure, the ball 40 is pressed against the second tapered inner surface 22a by the coil spring 50, and the position of the push rod 42 in this state is indicated by a solid line, and when the push rod 42 is pushed up from below, The positions of the tip of the push rod 42 and the ball 40 are shown by alternate long and short dash lines.

The disinfectant dispenser according to the second embodiment is provided with the screw cap 2 except when the operator operates the push rod 42.
Since the ball 40 provided inside 5 is always biased by the coil spring 50 toward the second tapered inner surface 22a of the second valve seat 22, the screw cap 50
The internal airtightness is ensured, and as a result, it is possible to reliably prevent the disinfectant solution from dropping when the disinfectant solution container equipped with the disinfectant solution dispenser is not used or moved.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional use state diagram showing a state in which a disinfectant solution container equipped with a disinfectant solution dispenser according to a first embodiment of the present invention is supported by a disinfectant solution container support device.

FIG. 2 is a half sectional view of the disinfecting liquid dispenser shown in FIG.

FIG. 3 is a front view of a push rod of the disinfecting liquid dispenser shown in FIG.

FIG. 4 is a sectional view taken along line IV-IV of the push rod shown in FIG.

FIG. 5 is an enlarged half cross-sectional view of the disinfecting liquid dispenser according to the second embodiment of the present invention.

[Explanation of symbols]

2 disinfectant solution container 2a mouth part 5 disinfectant solution container supporting device 5a hood 5b liquid reservoir 6 insertion port 8 bolt 10 nut 20 disinfectant solution dispenser 22 second valve seat 22a second taper inner surface 25 screw cap 25a first screw cap part 25b Second screw cap portion 26 Overhang portion 28 Metering chamber 30 Guide wall 32 First valve seat 32a First tapered inner surface 34 Flange 35 Main body portion 36 Shoulder portion 38 Inner screw 40 Ball 42 Push rod 50 Coil spring

Claims (3)

[Claims] 1. A screw cap (25) having a through hole having a substantially circular inner peripheral surface, the screw cap (25) being provided substantially at the center of the inner peripheral surface and being axially spaced from each other by a predetermined distance.
(25) A pair of valve seats (22, 32) having tapered surfaces (22a, 32a) formed in a taper shape so as to be narrowed inward toward each opening edge, and the disinfectant solution container (2). A screw cap (25) having an inner screw (38) formed on the inner peripheral surface of one end so as to be screwed into an outer screw formed on the outer peripheral surface of the mouth (2a), and a pair of valve seats (22, 32), and the taper surfaces (22a, 22a) of the valve seats (22, 32).
Ball (40) for constructing a valve in cooperation with 32a)
And the ball is arranged in the opening at the other end of the screw cap (25) so as to be movable within a predetermined region in the axial direction and
A push rod (42) for moving the (40) from the valve seat (22) located on the other end side to the valve seat (32) located on the one end side, which is located in the other end opening. A disinfectant dispenser comprising an axial groove so that a flow path is formed between the groove and the peripheral surface, and a push rod (42) suspended at the other end. . 2. Between the valve seat (32) on one end side of the screw cap (25) and the ball (40),
A spring means for urging the ball (40) against the tapered surface (22a) of the valve seat (22) on the other end side of the screw cap (25) is provided.
Disinfectant dispenser as described. 3. The disinfecting liquid dispenser according to claim 2, wherein the spring means comprises a conical compression spring (50).