JPH0568858U - Umbrella valve body - Google Patents

Abstract

(57) [Summary] [Purpose] To enable smooth and proper valve opening and closing even if the fluidity of the contents is poor. [Structure] A taper-shaped elastic skirt 12 is provided so as to extend obliquely downward from the peripheral edge of a disk-shaped base 11, and a glans-shaped fitting 13 is vertically provided from the center of the lower surface of the disk-shaped base 11. Consists of
In use, the boss Ag is placed at the center of the valve hole Af.
The glans-like fitting 13 is fitted and fixed in the boss hole Ah, and the elastic skirt 12 is pressure-bonded to the flat valve seat Ae around the valve hole Af. In this case, the elastic skirt 12 opens by producing a pressure difference of low pressure in the upper part and high pressure in the lower part, but its tip has flexibility suitable for opening and closing the valve, and the disk-shaped base part.
The closer it is to 11, the less flexible it has, the so-called resilient restoring force required, ensuring smooth and proper valve opening and closing.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an umbrella-shaped valve body used for a small pump mechanism or the like.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, there is a container for storing a paste, a cream, etc., equipped with a small pump mechanism shown in FIG. The small pump mechanism A in this case is mounted on the upper end of the cylindrical container body B having the rising bottom C, and is operated by pushing down the discharge head D to obtain the discharge of the contents from the discharge head. Has become. Specifically, a movable piston Ac, which also functions as a discharge valve, attached to the discharge head D is inserted from above into a small cylinder Aa having a suction valve Ab at its lower end, and the suction valve Ab is made of a rubber or synthetic resin plate. A valve-type valve disc Ad is used. Thus, as shown in FIGS. 6 and 7, the plate valve type valve body Ad has a circular valve plate 3 disposed inside a circular base body 1 having a planar shape with an appropriate gap 4 therebetween. One small elastic piece 2 is interposed between the valve plate 3 and the ring-shaped base body 1, and the ring-shaped base body 1 is fitted to the lower end of the small cylinder Aa. It is seated on the valve seat Ae formed at the lower end of the.

[0003]

[Problems to be solved by the device]

 However, in the valve body Ad, since the restoring force of the elastic piece 2 is small, if the fluidity of the content is poor, the valve plate 3 may not be closed smoothly after opening the valve, or the position may be displaced or twisted. Therefore, the small pump mechanism A may be hindered. In order to prevent this, it is conceivable to widen the width of the elastic piece 2. However, if it is simply widened, the edges of the annular base body 1 and the valve plate 3 form an arc, so that the movement of the elastic small piece 2 is restricted, and the bending and the like are extremely reduced. become worse. The present invention seeks to solve these problems.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a continuous elastic skirt 12 having a tapered shape that hangs obliquely downward from the peripheral edge of a disk-shaped base 11, and has a glans-like shape from the center of the lower surface of the disk-shaped base 11. It is characterized in that the fitting 13 is vertically provided.

[0005]

[Action]

 In the above configuration, when using, the glans-like fitting 13 is fitted and fixed in the boss hole Ah of the boss Ag arranged appropriately in the center of the valve hole Af, and the elastic skirt 12 is flattened around the valve hole Af. The valve seat Ae is pressed and seated. In this case, the elastic skirt 12 opens by causing a pressure difference of low pressure in the upper part and high pressure in the lower part, but the tip end of the elastic skirt 12 has flexibility suitable for opening and closing, and the disc-shaped base part 11 has It has a so-called required restoring force that is so flexible that it becomes less flexible as it gets closer, ensuring smooth and proper valve opening and closing.

[0006]

【Example】

 1 to 4 show an embodiment of the present invention. The umbrella-shaped valve body 10 shown in the drawing has a continuously extending elastic skirt 12 that has a tapered shape that hangs obliquely downward from the peripheral edge of a disk-shaped base 11 and that gradually decreases in thickness toward the tip. A glans-like fitting 13 is hung from the center of the lower surface of 11 and the whole of them is integrally formed integrally with synthetic resin, rubber or the like. This umbrella-shaped valve body 10 is used as a suction valve Ab in a container provided with a small pump mechanism A similar to the conventional one, which contains paste, cream, and the like. The small pump mechanism A is mounted on the upper end of the cylindrical container body B having the rising bottom C, and the discharge valve mounted on the discharge head D from above in the small cylinder Aa having the suction valve Ab at the lower end, as in the conventional case. A dual-purpose movable piston Ac is inserted, and the ejection head D is actuated by pushing it down to obtain the ejection of contents from the ejection head. Thus, the suction valve Ab has a boss Ag arranged in the center of a valve hole Af formed with a relatively large diameter via a plurality of support pieces Ai, and the umbrella-shaped valve body 10 is inserted in the boss hole Ah of the boss. The glans-like fitting 13 is fitted and fixed, and the elastic skirt 12 of the umbrella-shaped valve body 10 is pressure-bonded to the flat valve seat Ae around the valve hole Af. With such a structure, when the ejection head D is pushed down, the inside of the small cylinder Aa is in a pressurized state, and as shown in FIG. 3, the elastic skirt 12 of the umbrella-shaped valve body 10 moves to the valve seat Ae. While maintaining the seated state, the suction valve Ab is in the closed state, but when the discharge head D is in the suctioning posture in which it rises, the inside of the small cylinder Aa becomes negative pressure and the elastic skirt 12 of the umbrella valve body 10 is Warps up and opens the valve, causing the contents in the container body B to flow into the small cylinder Aa through the valve hole Af. In addition, the elastic skirt 12 has an appropriate flexibility at its tip, and the flexibility decreases as it approaches the disc-shaped base 11, so that the elastic skirt 12 has a so-called strong required restoring force, so that it can be smoothly and properly operated. Open and close the valve.

[0007]

[Effect of the device]

 According to the present invention, since the glans-like fitting 13 is hung vertically from the center of the lower surface of the disk-shaped base 11, the glans-like fitting 13 is appropriately arranged at the center of the valve hole Af. It can be easily and accurately mounted by simply inserting it into the valve base.Because a tapered elastic skirt 12 that hangs diagonally downward from the peripheral edge of the disk-shaped base 11 is connected in series, the elastic skirt 12 can be inserted into the valve hole. The valve seat Ae around Af can be appropriately pressure-bonded and seated, so that the flexibility of the elastic skirt 12 for opening and closing the tip portion and the so-called stubborn rigidity of the base portion are required. With restoring force, smooth and proper valve opening and closing can be obtained even if the fluidity of the contents is poor. It is structurally and easily manufactured and can be provided at low cost, which is very useful in practice.

[Brief description of drawings]

FIG. 1 is a cutaway side view showing an embodiment of a container with a small pump mechanism using the umbrella-shaped valve body of the present invention.

FIG. 2 is a cutaway perspective view of a main part of the same example.

FIG. 3 is a cutaway perspective view of a main part in a valve closed state of the same example.

FIG. 4 is a cutaway perspective view of a main part in the valve open state of the same example.

FIG. 5 is a perspective view showing a conventional container with a small pump mechanism.

FIG. 6 is a perspective view showing a plate valve type valve body of the suction valve of the same example.

FIG. 7 is a plan view showing a plate valve type valve body of the suction valve of the same example.

[Explanation of symbols]

 1 Annular base 2 Elastic piece 3 Valve plate 4 Gap 10 Umbrella valve body 11 Disc-shaped base 12 Elastic skirt 13 Glans-like fitting A Small pump mechanism Aa Small cylinder Ab Suction valve Ac Movable piston Ad Plate valve type Ae valve Seat Af Valve hole Ag Boss Ah Boss hole Ai Support piece B Container body C Raised bottom D Discharge head

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location F16K 15/14 A 8512-3H

Claims (1)

[Scope of utility model registration request] 1. A taper-shaped elastic skirt (12) hanging downward from the peripheral edge of a disk-shaped base (11) is continuously provided, and a glans-shaped fitting (13) is hung from the center of the lower surface of the disk-shaped base (11). Umbrella valve body characterized by doing.