JP2520176Y2 - Liquid ejector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a liquid ejector provided to eject liquid cosmetics and other liquids as liquid or as mist.

[Conventional technology]

As an atomizer for continuously atomizing a liquid, an aerosol type liquid ejector using Freon gas is often used.
However, when Freon gas as the pressurizing gas is released into the atmosphere, it rises to an ultrahigh level and destroys the ozone layer, so the development of a manual liquid ejector that can continuously eject without using Freon gas. Is desired.

By the way, generally speaking of liquid ejectors, for example,
Pressure accumulators such as those disclosed in Japanese Patent Laid-Open No. 63-185475 are often used. This accumulator atomizer is erected from inside a small cylinder with a suction valve hung vertically inside the container body by urging a tubular member with a small-diameter cylindrical piston attached at the lower end upward, and a large diameter attached at the upper end of this member. A cylindrical piston is fitted into a large diameter cylinder vertically extending from the lower surface of the pressing head, and a discharge valve is formed by a valve body standing upright from the upper end of the member and a valve hole formed in the top wall of the large diameter cylinder. When the push-down head is pushed down with respect to the container body, the tubular member is lowered against the bias due to the high pressure in the large-diameter cylinder 9 to open the discharge valve,
When spraying from a sprayer opening on the side surface of the push-down head, or when the push-down head is released due to the elimination of the high pressure, the tubular member and the push-down head rise while keeping the discharge valve closed by the bias, and at this time the suction valve It is provided so that the liquid in the container body is sucked into both cylinders and the tubular member when opened.

[Problems to be solved by the device]

Such a conventional pressure-accumulation type sprayer has a relatively short spraying time and requires a large number of operations of a pressing head, which is extremely troublesome and cannot be replaced with a sprayer using the above-mentioned fluorocarbon gas. Moreover, the structure was complicated.

Therefore, the present inventor has proposed a container body in which the mouth and neck is erected, a cylinder hung from the mouth and neck into the container body, and a suction valve provided in the lower end of the cylinder.
A suction pipe extending from the suction valve to the bottom of the container body, an upper end of which is engaged with an upper part of the cylinder, and a rising wall which is mounted on the outside or inside of the mouth / neck part and a lower end of the rising wall. A guide cylinder that surrounds the standing wall from the outside and stands up with a constant space between the standing wall, a cylindrical piston that is vertically movably fitted into the cylinder, and a stem that stands up from the piston. , A connecting body attached to the upper end of the stem and hanging from the connecting body, and
A sliding cylinder fitted vertically movable into the space between the standing wall 17 and the guide cylinder, a head having an ejection hole communicating with the inside of the stem provided above the stem, and an upper end portion of the stem. A liquid ejector with a discharge valve provided was developed.

Here, as the discharge valve, it is desirable to use an aerosol type valve that has a valve tube connected to the head and is opened when the head is pushed down and the stem and the piston are pushed down. As a result, when the ejection of the liquid is completed or interrupted, the remaining liquid is cut off well.

However, the aerosol type valves that have been used so far have problems that the valve body is covered with a metallic outer cover and caulked, so that the manufacturing is not easy and the cost is high.

The present invention aims to solve such a problem.

[Means for solving the problem]

The present invention relates to a container main body having a mouth / neck portion standing upright, a cylinder hung from the mouth / neck portion into the container main body, a suction valve provided at a lower end portion of the cylinder, and a suction valve The suction pipe reaching the bottom of the container body, the upper end of which is engaged with the upper part of the cylinder, and the standing wall which is attached to the outside or inside of the mouth and neck, and the lower end of which is connected to the standing wall. A guide cylinder that surrounds the wall from the outside and stands up with a certain distance from the standing wall, a cylindrical piston that is vertically movably fitted into the cylinder, a stem that stands up from this piston, and an upper end of this stem. And a sliding cylinder that hangs down from the connection body and that is vertically movably fitted into the space between the upright wall 17 and the guide cylinder. Has a spout that communicates with And a discharge valve provided at the upper end of the stem, the discharge valve is an aerosol valve that opens when the head is pushed down to push down the stem and the piston, and the aerosol valve is A valve body having upper and lower openings, an elastic body having a first through hole that closes the upper surface of the valve body, and a second through hole that matches the first through hole, and the elastic body is wrapped with the valve body. The outer cover is integrally connected, the lower end is closed, the upper end is open and the head is connected to the upper end, the intermediate recess has an annular recess, and the annular recess has a valve hole. A valve pipe having a lower end inserted into the valve body by penetrating the second through hole of the elastic body and the first through hole of the elastic body and having the elastic body fitted in the annular recess; And a spring for urging, wherein the outer cover is made of synthetic resin, A liquid ejecting instrument characterized in that it fitted in the upper part of the body.

Here, the standing wall is screwed to the outside of the mouth and neck and has an inward flange at the upper end. The inward flange clamps and fixes the upper part of the cylinder with the upper end of the mouth and neck. Then
Further, it is desirable to integrally have a locking cylinder that extends from the inner peripheral edge of the inward flange and hangs down inside the cylinder.

It is preferable that a connecting body is provided around the upper end of the stem, a sliding cylinder is provided so as to hang down from the outer periphery of the connecting body, and the stem, the connecting body, and the sliding cylinder are integrally molded of synthetic resin.

Further, it is preferable that the stem and the piston are biased by a spring so that they are in the raised position.

[Action]

When the head is pulled up with respect to the container body, the cylinder rises, the inside of the cylinder becomes negative pressure, and the liquid in the container body flows into the cylinder through the suction valve. Then
When the head is released, the cylinder is urged downward by a spring, so that the liquid in the cylinder is pressurized. When the push-down head 37 is pushed down from this state, the discharge valve opens and the liquid in the cylinder is jetted from the jet holes. When the head is released, the discharge valve is closed and the spraying is stopped. However, if the head is kept pressed, the spraying is continued until the operating member reaches the lower limit.

Further, since the sliding cylinder is guided by the guide cylinder, the vertical operation can be stably performed even if the length of the stem becomes long.

In addition, since the outer cover of the aerosol valve is made of synthetic resin and only needs to be fitted to the valve body, it is easy to manufacture,
It has become possible to reduce costs.

The present invention is a cosmetic liquid sprayer, a shampoo liquid ejector,
It can be used for spraying and ejecting various liquids, such as a sprayer for insecticides and a sprayer for liquid detergent.

〔Example〕

Preferred embodiments of the present invention will be described below with reference to the drawings.

[Example 1] In Example 1, as shown in Figs. 1 and 2, a container body 1 in which a mouth / neck portion 4 is provided upright, and the container body 1 hangs down from the mouth / neck portion 4 into the container body 1. And the suction valve 7 provided at the lower end of the cylinder 9, and the suction valve 7
To the inner bottom of the container body 1, the upper end of which is engaged with the upper part of the cylinder 9, and the standing wall 17 mounted on the outside of the mouth / neck 4 and the lower end of the standing wall 17. A guide cylinder 20 which is connected to the standing wall 17 and surrounds the standing wall 17 from the outside to stand upright with a constant space between the standing wall 17 and a cylindrical piston 26 fitted in the cylinder 9 so as to be vertically movable.
The stem 27 standing from this piston 26 and this stem 27
Connecting body 28 attached to the upper end, and hanging from this connecting body 28,
Further, a sliding cylinder 29 fitted vertically movable into the space between the standing wall 17 and the guide cylinder 20, and provided above the stem,
Head 40 having ejection holes 43 communicating with the inside of the stem 27
And a discharge valve 45 provided at the upper end of the stem 27. Hereinafter, it will be described more specifically.

In FIG. 1, reference numeral 1 denotes a container main body 1 which erects a mouth / neck portion 4 from a body portion 2 via a shoulder portion 3, and a screw thread is attached to the outer surface of the mouth / neck portion 4.

A cylinder 9 is provided so as to hang down from the mouth / neck portion 4 into the container body 1. The cylinder 9 has an outward flange 6 at the upper end, and the cylinder 9 is suspended in the container body 1 by engaging the outward flange 6 with the upper end of the mouth / neck portion 4.

The cylinder 9 has a suction valve 7 in the lower end portion thereof, and a suction pipe 8 extending from the suction valve 7 to the inner bottom portion of the container body 1 is provided. The cylinder 9 has an outer diameter smaller than the inner diameter of the mouth / neck portion 4, and the container body 1 is provided on the upper portion thereof.
It has a through hole (10) for preventing internal negative pressure.

On the other hand, a standing wall 17 is screwed onto the outer surface of the mouth / neck portion 4 of the container body 1. The upstanding wall 17 has an inward flange 16 at the upper end, and the inward flange 16 holds the outward flange 6 between the upper end surface of the mouth / neck portion 4 via the packing 11.
Thereby, the cylinder 9 is fixed. Further, a locking cylinder 80 that stands up from the inner peripheral edge of the inward flange 16, rides over the short cylinder 12 above the cylinder 9, and hangs down inside the cylinder 9 is integrally provided. The lower end of the locking cylinder 80 is engaged with and disengaged from the piston 26, and determines the upper stroke limit of the piston 26. Then, the locking cylinder 80 is attached to the standing wall 17
Since it is integrated with, the number of parts is small.

A guide cylinder 20 is erected from the lower end of the standing wall 17 via a gap holding plate 18. The guide cylinder 20 surrounds the standing wall 17 from the outside and stands upright with a certain distance from the standing wall 17.

Further, a cylindrical piston 26 is fitted in the cylinder 9 so as to be vertically movable. The cylindrical piston 26 has a communication hole in the center thereof, and the stem 27 stands up in communication with the communication hole. An outward flange-shaped connecting body 28 is attached to the upper end of the stem 27, and a sliding cylinder 29 is provided so as to hang down from the outer periphery of the connecting body 28. The sliding cylinder 29 includes the standing wall 17 and the guide cylinder 20. It is fitted in the gap between and so that it can move up and down.

The stem 27, the connecting body 28, and the sliding cylinder 29 are integrally formed of synthetic resin. An engagement hole 81 is provided in the coupling body 28, and a tubular fixing tool 82 mounted on the upper surface of the stem 27 from above by hooking the lower end claw portion to the edge portion of the engagement hole 81,
The aerosol type valve 45 is fixed to the upper surface of the stem 27.

Thus, the number of parts is reduced by omitting and integrating the parts, and the manufacturing cost can be reduced.

As shown in FIG. 2, the aerosol type valve 45 includes a tubular valve body 66 having an upper body larger in diameter than the lower body, an elastic body 67 having a first through hole closing the upper surface thereof, and an elastic body having the first through hole. body
67 and the tubular valve body are integrally connected by enclosing a synthetic resin jacket 68 having a second through hole. That is, the synthetic resin jacket
68 has a structure in which a side wall portion 68b is vertically provided around a point plate portion 68a having a second through hole in the center, and a concave line is provided inside the side wall portion 68b. The protrusion provided on the outer circumference of the upper part is fitted to the tubular valve body 66. An annular recess is provided in the middle, and a valve hole is provided in this annular recess.
The valve tube 71 having the lower end surface closed with the hole 70 formed therein is provided with the synthetic resin jacket.
68 through the second through hole and the elastic body 67 through the first through hole,
Further, the elastic body 67 is fitted in the annular recess to close the valve hole 70 by the inner wall surface of the first through hole of the elastic body 67, and the valve 72 is moved upward by the spring 72 provided in the tubular valve body 66. Urged to. As a result, the valve hole 70 and the elastic body 67 form a discharge valve. Then, the head 40 with the ejection hole 23 is provided on the upper end of the valve pipe 71.
When the head 40 is pushed down against the urging force, the valve pipe 71
The downward movement of the first through hole peripheral portion of the elastic body 67 opens the valve hole 70, and when the valve tube 71 rises due to the interruption of the pushing down, the elastic body 67 also elastically returns to the position shown in the figure, and It is provided so as to close the valve hole 70. The head 40 is formed in a cap shape and has an ejection hole 43 on one side of the upper portion. The ejection holes 43 are configured to eject the liquid in a spray form.

Further, by using the synthetic resin jacket, fitting of the jacket 68 to the tubular valve body 66 becomes extremely easy as compared with the conventional example in which the metal jacket is caulked and attached.

In addition, the ball valve 7a of the suction valve 7 is inserted into the bottom of the cylinder 9.
The member 50 for preventing the blind movement of is fitted.

Although not shown, the top surface of the container body 1 and the cylinder 9
Packing that is sandwiched between the outer flange 6 and the lower surface of the
11. A thin cylindrical portion having elasticity is hung from the inner circumference, and the thin cylindrical portion is fitted to the upper part of the cylinder 9 to close the through hole 10.
The outside air may be allowed to flow in only when the inside of the container body 1 has a negative pressure due to the liquid decrease.

With the above configuration, when the head is pulled up and lifted, the piston 27 rises in the cylinder 9 and the cylinder 9 below the piston 26 has a negative pressure, so that the suction valve 7 opens and the liquid in the container body 1 is sucked. It is sucked into the cylinder 9 from the pipe 8.

Next, when the head 40 is pushed down, the suction valve 7 is closed,
The liquid in the cylinder 9 below the piston 26 loses its escape and becomes high pressure, and the discharge valve 45 is opened to eject the liquid from the ejection hole 43.

As shown in FIG. 3, the piston 26 is divided into a cylinder portion 26a connected to the stem 27 and a piston body 26b, and the piston body 26b is sandwiched between the cylinder portion 26a and the stem 27. You may In this way, the piston body 26b can be easily replaced according to the size of the cylinder diameter.

Example 2 In Example 2, as shown in FIG. 4, the standing wall of Example 1 was used.
A spring 90 is provided between the 17 part and the connection body 28,
The piston 26 together with 40 and the stem 27 is biased by a spring 90 so that the piston 26 is always in the raised position. Therefore, when not in use, the through hole 10 for preventing the negative pressure in the container body 1 is the piston.
Even if there is no thin cylinder part that is blocked by 26 and blocks the through hole 10, this through hole 10
Does not cause liquid leakage.

In this way, when the spring 90 biases the piston 26 together with the head 40 and the stem 27 so as to always be in the raised position,
When the spraying operation is repeatedly performed, the operation of pulling up the head 40 or the like is unnecessary, and thus the operation is easy. Also. When such a spring 90 is provided, a device for locking the head 40 or the like in a depressed state may be provided when the container is transported. As an example thereof, a projection is provided on the outer surface of the sliding cylinder 29, a vertical groove for inserting the projection of the sliding cylinder on the inner surface of the guide cylinder 20 and a horizontal groove connected to the lower end of the vertical groove are provided, and the head is provided.
It is preferable that the head 40 and the stem 27 are locked by pushing down 40 and moving the protrusion from the vertical groove to the horizontal groove.

As shown by the chain line in Fig. 4, the spring
90 may be stretched between the locking cylinder and the piston.

In addition, each component of the apparatus described above can be molded with a synthetic resin. Further, depending on the design of the ejection holes, it can be a sprayer that sprays the liquid in a mist state or a sprayer that sprays the liquid in a straight line.

[Effect of device]

The present invention is configured as described above. Since the head 40 and the piston 26 are pulled up from the cylinder 9 and pushed down as they are for spraying, the lengths of the cylinder 9 and the stem 27 can be set appropriately. The spraying time can be made longer than before, and a sliding cylinder 29 is vertically connected to the stem 27 so that the sliding cylinder 29 moves up and down between the standing wall 17 and the guide cylinder 20. Therefore, even if the stroke of the cylindrical piston 26 with respect to the cylinder 9 is increased, the cylindrical piston 26 and the members connected thereto do not rattle when the cylinder 9 is pulled up, so that the spray is smoothly performed. Can be done.

In particular, the aerosol type valve has a synthetic resin jacket fitted over the upper part of the valve body, so unlike conventional devices that crimp a metal jacket, assembly and manufacturing are easy and cost can be reduced. .

[Brief description of drawings]

FIG. 1 is a sectional view showing the first embodiment, FIG. 2 is a half sectional view of an aerosol type valve used therein, FIG. 3 is a view showing an example of design modification of a piston portion, and FIG. It is sectional drawing which showed the Example. 1 ... container body, 4 ... mouth neck part, 6 ... outward flange, 6 ... first outward flange, 7 ... suction valve, 8 ...
… Suction pipe, 8 …… Suction pipe, 9 …… Cylinder, 17
...... Standing wall, 20 ...... guide cylinder, 23 ...... spout hole, 26 …… cylindrical piston, 27 …… stem, 28 …… connecting body, 29 …… sliding cylinder, 40 …… head, 45 …… Aerosol-type valve as a discharge valve, 66 ... Valve body, 67 ... Elastic body, 68 ... Coat, 70
...... Valve hole, 71 ...... Valve tube, and 72 ... Spring that urges the valve tube.

Claims (1)

(57) [Scope of utility model registration request] 1. A container body in which a mouth / neck portion is erected, a cylinder hung from the mouth / neck portion into the container body, a suction valve provided at a lower end portion of the cylinder, and a suction valve. The suction pipe from the bottom to the bottom of the container body, the upper end of which is engaged with the upper part of the cylinder, and the rising wall which is attached to the outside or inside of the mouth and neck, and the lower end of the rising wall. A guide cylinder that surrounds the standing wall from the outside and stands up at a constant distance from the standing wall, a tubular piston that is vertically movably fitted into the cylinder, a stem standing upright from the piston, and a stem A connecting body attached to the upper end, a sliding cylinder that hangs down from the connecting body, and is vertically movably fitted into the space between the standing wall 17 and the guide cylinder, and is provided above the slam, and the stem is provided. Has a spout that communicates with the inside A head and a discharge valve provided at an upper end portion of the stem are provided, and the discharge valve is an aerosol type valve that is opened when the head is pushed down to push down the stem and the piston. And an elastic body having a first through hole that closes the upper surface of the valve body, and a second through hole that matches the first through hole, and the elastic body is wrapped with the valve body to be integrated. And an outer cover having a closed lower end, an upper end opened and the head connected to the upper end, an annular recess in the middle, and a valve hole in the annular recess. A valve pipe having a lower end inserted into the valve body by penetrating the second through hole of the elastic body and the first through hole of the elastic body and having the elastic body fitted in the annular recess; And a spring for urging, wherein the outer cover is made of synthetic resin, Liquid ejector, characterized in that fitted to the upper part of the body.