JPS58170562A - Fluid distributor - Google Patents

Abstract

PURPOSE:To obtain a pressure-accumulating pump-type ejector equipped with a simplified mechanism, and capable of performing ejection when it is inverted by providing a body supported by a spring at the bottom of a small-sized cylinder and forming a valve chamber comprising a bucket valve and a check valve. CONSTITUTION:A body 5 supported by a spring is provided at the bottom of a small-sized cylinder 22, and a spring 6 is attached through said body. The first valve chest constituted by the bucket valve 7 which allow the penetration of a fluid into housing 2 but not its reverse flow and the lower end of the small- sized cylinder 22 is formed at the lower side of the small-sized cylinder 22, and a ball valve 12 mounted on a valve seat 23b is made to act as a check valve. In addition, a side hole 22d is provided below the part 7a of the bucket valve 7 which comes in contact with a piston. Accordingly, the manual ejector capable of performing ejection when it is inverted is obtained by attaching the simplified mechanism.

Description

[Detailed description of the invention] The present invention relates to a manual fluid dispensing device, a nebulizer.

Manual sprayers are widely used as household items such as ironing misters and perfume sprays. The operating principle of these sprayers is basically that of a pump, but in conventional sprayers, when the pump starts operating.

The first spray will occur until sufficient pressure is not stored in the cylinder of the pump, so unless the piston is pushed down rapidly with a very strong force, the first spray will be large droplets that will drip and cover the floor. There were drawbacks such as getting wet. In order to overcome this drawback, a method is known in which the valve on the outlet side of the pump cylinder is closed with an elastic body such as a spring so that it opens only when the internal pressure of the cylinder becomes greater than the elasticity of the spring. But this way.

The piston must be reciprocated a considerable number of times before the internal pressure of the cylinder becomes high enough and spraying begins. Furthermore, these devices still have some inadequacies, such as a complex structure and a large number of parts, making it difficult to manufacture.

Instead of closing the valve on the outlet side of the pump cylinder with an elastic body such as a spring, a slider tube that operates as the valve on the outlet side is inserted into the pump cylinder, and the pressure inside the cylinder is reduced by pushing down the spray head. It is also well known that when the pressure rises, the slider tube further descends and the valve on the outlet side is opened (Japanese Patent Publication No. 51-11804). Utility Model Application Publication No. 51-12012 has been proposed as a device using this slider tube, but the structure of the slider tube in these devices is not simple, and furthermore, the intake and exhaust during operation of the slider tube is difficult. The path is long and complicated, and the number of parts is therefore large, which poses many manufacturing difficulties.

Further, according to JP-A-53-161317, there is provided a manual spraying device that uses a slider tube (cylindrical valve) that operates as a valve on the outlet side of a pump cylinder.

To overcome the above-mentioned inadequacies, the number of piston reciprocations until the start of spraying is small, a stable spraying state can be obtained, and all the main parts such as the valve body including the nine operating valves can be housed in the cylinder. A manual spray device with simplified construction is disclosed.

More specifically, this device is installed in a housing in the middle of the path from the suction pipe to the spray nozzle.

A part of the upper large-diameter cylinder and a lower small-diameter cylinder are provided with a force-free chamber containing a sliding cylindrical valve that spans both cylinders, and when the contents of the pressurized chamber are compressed by pressing down on the spray button. , a manual spray device (usually called a pressure accumulation type manual sprayer) in which the cylindrical valve is further pushed down and the stop valve at the top of the cylindrical valve is released, and the upper part of the upper large-diameter cylinder and One side hole is provided at the bottom of each.

The cylindrical valve in the cylinder is provided with a packet disposed between the upper and lower side holes of the large-diameter cylinder in a stationary state, and a packet at the lower end of the cylindrical valve that reaches into the small-diameter cylinder, By providing a passage inside the valve that extends from the lower end to the upper side of the upper packet and a side hole slightly above the upper packet, when the cylindrical valve is in operation, an air intake path that leads from the side hole at the top of the large diameter cylinder to the outside of the spray device is provided. is formed, and when the cylindrical valve reaches the lower end, a passage within the cylindrical valve and an exhaust passage leading from the side hole of the cylindrical valve to the side hole at the bottom of the large diameter cylinder are formed. is disclosed.

The device also includes means for closing the reservoir air inlet passage when not in operation, which compensates for the reduced pressure in the container due to the evacuation of liquid.

However, this device still has two disadvantages: 9th order. First, you cannot spray while standing upside down.

Secondly, these ejaculators are usually provided with a conduit passage that introduces air from the gap between the valve stem and the cap part in order to compensate for the internal pressure reduction due to the reduction of the contents due to spraying. Since this is conductive for quite a long time during one operation, liquid leaks when discharging in an inverted or horizontal position. Utility Model No. 55-95866 improved on the latter point.
There is. The device disclosed in Japanese Utility Model Application No. 55-95866 is extremely complicated and cannot necessarily be said to be practical today.

The present invention provides a manual fluid dispensing container that can be drained upside down, as well as sideways and upside down.

Although the term "atomizer" is used in the description of the above prior art, all of these atomizers atomize by mechanical break-up action at the nozzle part, and the discharge container itself is not directly related to the atomization, so the present application is not applicable. uses the term fluid dispensing container.

According to the present invention, there is provided a housing including a part of a large diameter cylinder and a part of a small diameter cylinder, and a discharge valve stem fitted into the housing and forming an elastic piston whose lower end contacts the inner surface of the part of the large diameter cylinder. , a sliding cylindrical valve that is fitted across a part of the large-diameter cylinder and a part of the small-diameter cylinder and performs a pressure accumulating function that operates on the principle of a water pressure device, and a reverse valve installed at the lower end of the small-diameter part of the cylinder. It consists of a stop valve, and side holes serving as fluid passages are provided above and below a portion of the large diameter cylinder. In an accumulator pump type manual fluid dispensing device having the function of closing the passage for introducing outside air when not in operation in order to compensate for the reduced pressure inside the container: A spring retainer is installed at the bottom of a part of the small diameter cylinder, and the retainer is supported above the bottom of a part of the small diameter cylinder, and below it is provided a check valve that has the same function as a packet valve that allows fluid to enter the housing but does not allow fluid to flow in the opposite direction. Rare.

Furthermore, a check valve is provided on the inflow side of the housing to prevent fluid from flowing into the housing when the housing is inverted, and a portion of the small diameter cylinder corresponds to the lower side of the piston edge that contacts a portion of the small diameter cylinder of the packet valve. A fluid dispensing device is provided having a side hole at a location.

Furthermore, according to another invention of the present application, a housing including a part of a large-diameter cylinder and a part of a small-diameter cylinder, and an elastic piston fitted into the housing, the lower end of which contacts the inner surface of the part of the large-diameter cylinder, are arranged. A sliding cylindrical valve that is fitted across part of the large-diameter cylinder and a part of the small-diameter cylinder of the housing and performs a pressure accumulation function that operates on the principle of a water pressure device, and a sliding cylindrical valve that is installed at the lower end of the part of the small-diameter cylinder. The cylinder is comprised of a check valve, and side holes serving as fluid passages are provided above and below a portion of the large diameter cylinder. In a pressure accumulator pump type manual fluid dispensing device with the function of closing the passage introducing outside air when not in operation to compensate for the reduced pressure inside the container: a spring retaining force is placed at the bottom of a part of the small diameter cylinder, and the retainer is supported above the bottom of part of the small diameter cylinder,
A packet valve that allows fluid to enter the housing but does not allow fluid to flow in the opposite direction, and a check valve that has the same function are provided on the lower side of the housing, and a check valve that has the same function is provided on the inflow side of the housing. The small diameter cylinder part has a side hole at a position corresponding to the lower side of the piston edge where the small diameter cylinder part of the packet valve contacts the small diameter cylinder part, and A mantle tube is provided to cover the side hole and move the fluid intake port to the side hole fixed to the housing to the mouth side of the container with a gap between it and a part of the cylinder. A fluid dispensing device is provided.

Next, the present invention will be described in detail with reference to the drawings.

In FIG. 1, the main body of the dispensing container consists of a housing 2. A sliding cylindrical valve is fitted into the discharge valve stem, which is fitted over a portion of the large-diameter cylinder and a portion of the small-diameter cylinder of the 6° housing, and performs a pressure build-up function.4. A shaft-shaped spring holder 5 fitted into a part of the small diameter cylinder and the cavity of the sliding cylindrical valve 4. a packet valve 7 mounted on the tail end of the spring retainer 5; A spring 6 suspended between the spring holder 5 and the inner shoulder 4f of the cavity of the sliding cylindrical valve 4 allows flow into the housing, which is placed loosely at the nipple at the lower end of the housing 2, and vice versa. A ball valve 12 for blocking the flow into the housing is formed by a ball valve 13 for blocking the flow into the housing when the container is inverted, and a gasket 8 is interposed between the flange 2C of the housing and the mouth 11 of the container 10.

It is fixed to the container by a cap 1.

In the drawing, a spray button 12 is attached to the upper end of the discharge valve stem 3, and a mechanical break-up type nozzle tip 13 is attached to the spray part, but this part may be a dripping nozzle. .

The nipple part at the lower end of the housing has an upper part that is located above the valve seats 2 of the first ball valve 12 and the second ball valve 13.
A bulge 23a forming a holder 23c is formed, and a suction pipe 9 is attached to the end.

The lower end 3b of the discharge valve stem A, and the middle part 4b and lower end 4d of the sliding cylindrical valve 4 form a cup-shaped elastic sliding piston, which slides on the inner wall of the nozzle, respectively. This is a known pressure accumulator pump discharge mechanism.

The housing 2 is provided with side holes 21a and 21b above and below a portion of the large diameter cylinder.

When the discharge valve stem 3 is pressed down, the sliding cylindrical valve 4 is also pressed down, and when the gap 64 between them moves to the position of the lower side hole 21b, the air in the nozzle is discharged into the container, and the liquid is discharged. When the air in the nozzle is removed and the liquid (liquid content) fills the nozzle, the sliding cylindrical valve 4
This device operates on the principle of a water pressure device, and the sealing between the valve head 4a and the inner layer 3a of the discharge valve stem is broken, causing liquid to be discharged, which is completely the same as the device of JP-A-53-161317.

In the device of the present invention, the spring 6, which was mounted directly on the inner layer 3a of the sliding cylindrical valve 4 and the bottom of a part of the small diameter cylinder in the above-mentioned prior art, is mounted via a spring holder 5. There is one characteristic of what I did. Spring holder 5
is a rod-shaped member on which a spring locking portion 5a and a packet valve holding portion 5d are formed. It is a part uniformly expanded from the axis of the former, and its upper edge 5b receives the spring 6, and its lower surface is the small diameter part 22 of the nozzle 2.
It rests on the shoulder 22b of the pinched part 22a. (The Keratovalve 7 is a cup-shaped body made of elastomer.

It has a through hole and is fitted into the cerato holding part 5d of the spring holder, and rests on the bottom part 22c of the small diameter cylinder part 22 of the housing. At least one groove is provided to allow free passage of fluid through the spring catch 5a and the packet holder 5d. In the drawing, the left and right grooves 5e existing on the page are shown in outline.

The lower end of the small-diameter 7-cylinder portion 22 of the housing 2 forms a first valve chamber, and the ball valve 12 rests on the valve seat 25b. This valve acts as a check valve when the device is operated upright. The nipple part 2 at the lower end of the housing 2 forms a second valve chamber, in which the second ball valve 13 is placed, and there is a bulge 23e for locking the ball valve and a sump for allowing free passage of fluid when the housing is erected. A groove 23d is provided. The second ball valve 13 sits on the valve seat 23c when the device is in an inverted position and prevents fluid (gas) from flowing into the housing from the head space (bottom of the container). This ball valve 15 is forced into the nipple from below against the elasticity of the material.

With this configuration, during royal discharge, it functions in the same way as the device of JP-A-53-161317. However, the apparatus of the present invention has a side hole 22d at the lower part of a part of the small diameter cylinder, below the piston contact portion 7a of the packet valve 7. This side hole 22
d has no effect at all during upright ejection. The direct diameter of this side hole is extremely narrow compared to the fluid passage 25f of the nipple portion.

When the device is used in an inverted position, the ball valve 13, as seen in FIG. 2, sits on the valve seat 23c and closes off the passage from the middle of the nine heads (bottom of the container). In this state, when the discharge valve stem 4 is pushed up (depressed, hereinafter the parentheses indicate the upright state), the air inside the small diameter cylinder part 22 and the sliding cylindrical valve 4 is released from the lower part of the sliding cylindrical valve. (Upper) passage 4e
When the gap 64 coincides with the side hole 21b, the air is forced out from the nozzle 2 into the interior space of the container 11.

On the other hand, the liquid is waiting for an opportunity to enter through the side hole 22a, but the liquid is waiting for an opportunity to enter through the side hole 22a. Therefore, while the sliding cylindrical valve 4 is descending, the piston contact portion 7a of the bucket valve 7 expands and closes, so that no intrusion is possible. However, the discharge valve stem 6
In addition, when the sliding cylindrical valve 4 starts to move upward, the pressure inside the cylinder is reduced, so that the liquid enters the inside of the housing. When the liquid is discharged, the principle of a water pressure device works, and the valve head 4a of the sliding cylindrical valve and the inner layer 5 of the discharge valve stem are
The seal a is broken and the liquid is discharged through the through hole 4c of the sliding cylindrical valve.

As shown in FIG. 1, there is a gap 1C between the discharge valve stem 3 and the support part 1a of the cap 1, and from this gap, the upper side hole 21a of the large diameter cylinder part 21 is connected to the outside. A passage for introducing air into the container is formed. The inner edge of the elastomer gear sket 8 hangs down as a skirt portion 8b, and its lower edge swells to form a part 8a of the large-diameter cylinder 2.
It borders on 7. This conduction path is closed by contact between the lower edge 1a of the support portion of the cap and the shoulder of the discharge valve stem 6 when not in operation, but opens when 9 is in operation.

When the internal pressure decreases due to a decrease in the content liquid, the skirt 8b opens to automatically compensate for the internal pressure.

In the embodiment shown in FIGS. 1 and 2, the side hole 22a, which is the entrance path for liquid into the housing when inverted, is located at a position relatively far (high) from the mouth of the container (bottom when inverted). This makes it difficult to drain the container upside down once the liquid content is low. To compensate for this, according to the present invention, a device as shown in FIG. 6 is provided.

The device shown in cross-section in FIG. 3 is substantially the same as the device shown in FIG. In this device, compared to the device shown in FIG. 1, the nipple portion 2 of the housing 2 is relatively short and fits tightly therein. The outer tube 200 includes a small diameter portion 230 and a large diameter portion 220 that overlaps the small diameter cylinder portion 2z of the housing 2 with a gap provided on the outside thereof. The upper edge of this jacket tube ends at the upper end of the small diameter cylinder part 22 of the housing, but could theoretically extend to just below the lower side hole 21b of the large diameter cylinder part 21. By doing so, the liquid suction position during inversion can be lowered to the upper edge of the mantle tube.

FIG. 4 shows another embodiment of this outer mantle, in which the inner diameter of the suction pipe attachment part of the partial mantle is equal to the inner diameter of the nipple part 23 of the housing 2. In FIG. As a result, if inverted discharge is not intended, the suction pipe can be directly attached to the nipple 23 without using the mantle pipe. However, various modifications are possible. The spring holder 5 is rod-shaped in the above-mentioned proposal, but this is because it is convenient to have a rod shape for holding the spring, and by reducing the thickness of the rod by 11. Uzing (This is for the advantage of being able to increase the internal volume in the pump cylinder, and it is not necessarily necessary to be rod-shaped.In short, at the bottom of a part of the small diameter cylinder) ζ Cerato valve and check valve valve It is a means to provide a room.

Note that the device of the present invention can be used only in the upright position by omitting the ball valve means 16. The technical scope of the present invention extends to such embodiments. This is because it is a direct Contributory aspect to the present invention.

As described above, the present invention adds a relatively simple mechanism to the prior art to provide a pump-type discharge device that is a pressure accumulation type and is capable of inverted discharge.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a preferred embodiment of the first invention of the present application. FIG. 2 is a partial view showing the apparatus according to the embodiment of FIG. 1 when used in an inverted position. FIG. 3 is a sectional view showing a preferred embodiment of the second invention of the present application. 4 is a partial cross-sectional view of another embodiment of the apparatus shown in FIG. 3; FIG. In these drawings. 21... Large diameter cylinder part 22... Small diameter cylinder part 2... Housing 6... Discharge valve stem 4... Sliding cylindrical valve 10...・Check valves 21a, 21b...Side holes 5...Spring retainer 1...Valve means 7 that allows passage of fluid in the upright state but does not allow it in the inverted state... - Packet valve that only allows fluid to flow into the housing. Patent applicant: Tokushu Aerosol Co., Ltd. Agent: Patent attorney Masahiro Matsui (1 other person) Figure 3 Figure 4

Claims (1)

[Claims] 1. A housing consisting of a part of a large-diameter cylinder and a part of a small-diameter cylinder, and a discharge valve that forms an elastic piston whose lower end fitted on the outside contacts the inner surface of the part of the large-diameter cylinder. a stem, a sliding cylindrical valve fitted across part of the large-diameter cylinder and a part of the small-diameter cylinder of the housing, and which performs a pressure accumulating function that operates on the principle of a water pressure device; It consists of a stop valve, and side holes serving as fluid passages are provided above and below a portion of the large diameter cylinder. In a pressure accumulator pump type manual fluid dispensing device that has the function of closing the passage for introducing outside air when not in operation to compensate for the reduced pressure inside the container: a spring holder is placed at the bottom of a part of the small diameter cylinder; is supported at a position above the bottom of a part of the small diameter cylinder, and below it is provided a packet valve that allows fluid to enter the housing but does not allow fluid to flow in the opposite direction, and a reverse IF valve that performs the same function. further provided with a check valve on the inflow side of the housing to prevent fluid from flowing into the housing when the housing is inverted; A fluid dispensing device characterized in that it has a side hole at a corresponding position. 2. A housing consisting of a part of a large-diameter cylinder and a part of a small-diameter cylinder, a discharge valve stem fitted into the housing and forming an elastic piston whose lower end contacts the inner surface of the part of the large-diameter cylinder, and a large-diameter cylinder of the housing. It consists of a sliding cylindrical valve that is fitted across a part of the cylinder and a part of the small-diameter cylinder and performs a pressure accumulating function that operates on the principle of a water pressure device, and a check valve provided at the lower end of the part of the small-diameter cylinder. Side holes serving as fluid passages are provided above and below a portion of the diameter cylinder. In an accumulator pump type manual fluid dispensing device having the function of closing the passage for introducing outside air when not in operation to compensate for the reduced pressure inside the container: a spring retainer is placed at the bottom of a part of the small diameter cylinder, and the retainer is supported at a position above the bottom of a part of a small diameter cylinder, and a check valve that has the same function as a packet valve that allows fluid to enter the housing but does not allow fluid to flow in the opposite direction is installed below it. and is further provided with a check valve on the inflow side of the nozzle to prevent fluid from flowing into the housing when the housing is inverted; It has a side hole at a position corresponding to . Further, the housing is provided with a gap between the housing and a portion of the small-diameter cylinder, and is fixed to the housing so as to cover the side hole. A fluid dispensing device characterized in that it has a tube.