KR101763405B1 - Liquid pumping-dispenser of liquid receptacle - Google Patents

Abstract

The present invention relates to a liquid pumping-dispenser of a liquid receptacle, which is installed on a top side of the receptacle accommodating liquid content including paste to repeat a process where a part of the liquid accommodated inside is discharged through an outlet of a discharge head by pressing the discharge head or releasing the discharge head. According to the present invention, the liquid pumping-dispenser of the liquid receptacle comprises: the receptacle with an opening on a top side; a support plate whose edge is installed on the circumferential edge of the opening of the receptacle and which has a penetrating hole in the central part; a pumping tube which forms a vertically penetrating pipe and which is made from materials with elasticity and shape restoring force, having a wing unit formed on a side part to correspond to an edge of the support plate; a pipe-shaped guard fastened with the opening of the receptacle by pressurizing an edge of the support plate and the wing unit of the pumping tube to form a guide vertically on a bottom side of a downward hanging bump formed on a top side; and a discharge head which forms an upward hanging bump on a side wall guided by vertical sliding of the downward hanging bump, which is guided by the guide and whose upward movement is limited by the downward hanging bump, and which has a post protruding downwards on an internal side, which is inserted into an internal surface of the top end of the pumping tube and whose external part communicates with an outlet, and a pusher which presses a top side of the corresponding pumping tube in between the post and a side wall to keep the extended status.

Description

[0001] LIQUID PUMPING-DISPENSER OF LIQUID RECEPTACLE [0002]

The present invention relates to a liquid pumping apparatus for a liquid container, and more particularly, to a liquid pumping apparatus for a liquid container, which comprises a container in which liquid contents containing paste are installed, To a liquid pumping apparatus of a liquid container capable of repeating a process of discharging the liquid through a discharge port of the discharge head or switching to a discharge waiting state.

In general, a container for containing cosmetics or contents in liquid or paste form is provided with a liquid pumping device for repeatedly discharging the contents in the container by a predetermined amount.

The liquid pumping device is provided with a temporary storage portion for discharging the contents as pressure is applied through the opening portion of the container.

In the temporary storage unit, the volume of the temporary storage unit is reduced as the user presses the discharge head. As a result, the positive pressure increases in the temporary storage unit by the volume reduction, And discharging the contents by causing the discharging valve to instantaneously open.

Here, when the pressing force against the discharging head no longer acts or when the discharging head can not further reduce the volume of the temporary storing portion, the discharging valve closes the discharging opening with an elastic restoring force.

On the other hand, in the filling process of the contents in the temporary storage section, when the pressing force of the discharge head is released beforehand, the discharge head is returned to the original position by the action of the elastic means, and at the same time, the volume in the temporary storage section is restored to its original volume, In this process, a negative pressure is formed in the temporary storage unit, and a suction valve in a closed state at the time of positive pressure in the temporary storage unit is opened by the influence of negative pressure, and the contents in the communicating container are introduced into the temporary dressing unit.

The elastic force of the elastic means for causing the discharge head to return to the original position during the above-described process may be the elastic restoring force of the spring provided in the temporary storage portion and may be the shape restoring force of the tube made of elastic material such as rubber or silicone rubber .

Here, the former is superior in elastic restoring force to the latter and is easy to repeatedly discharge, whereas the latter has a disadvantage in that it takes a long time until the shape is restored as compared with the former, and repeated discharge is delayed.

On the other hand, the former has a large number of parts, the structure is complicated, and the number of assembled holes increases, resulting in an increase in manufacturing cost compared to the latter. In the case of a spring (including a ball with a valve installed together with a suction valve) There is a fear that the material may be oxidized, and when the iron balls are installed together, there is a problem that rusty noise is caused by the iron balls.

In the case of the latter tube, the temporary storage unit itself is provided, and at the same time, the discharge valve and the suction valve unit can be combined with each other, so that the structure can be simplified and the manufacturing cost can be reduced with a small number of components. However, There is a problem that it is inconvenient for use because of a long time for shape restoration, and reliability on shape restoring force is difficult.

Korean Registered Patent No. 10-1589677 (published on January 28, 2016) Korean Utility Model Registration No. 20-0187929 (published on July 15, 2000)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems of the prior art, and it is an object of the present invention to provide a liquid pumping device for a liquid container which can simplify the structure and improve the shape- .

In order to achieve the above object, the present invention provides a liquid pumping apparatus for a liquid container, comprising: a container having an opening formed thereon; A base plate having an edge portion provided at an opening periphery of the container and formed with a through hole communicating with the inside of the container at a central portion thereof; A wing portion corresponding to an edge portion of the receiving plate is formed on a side portion thereof and a lower portion of the wing portion is formed on the upper surface edge of the receiving plate and the through hole, A pumping tube which covers the periphery and has a shape which gradually decreases toward the upper side of the wing; A guard which presses the edge of the support plate and the wing portion of the pumping tube in a tubular shape and is engaged with the opening of the container and has a guide formed in a vertical direction below the downwardly engaging jaw formed on the upper side; And an upwardly engaging jaw which is guided by the guide on the side wall receiving the up and down sliding guide from the downwardly engaging jaw and is restricted from moving upward by the downwardly engaging jaw, And an outer portion of the post is in communication with the discharge port and has a pusher for pressing the upper portion of the corresponding pumping tube between the post and the sidewall so as to be in a stretched state And a discharge head.

In addition, the installation of the guard to the container may be performed by forming an annular fastening protrusion along the outer peripheral edge of the container opening, and forming a fastening groove on the inner peripheral edge of the guard corresponding to the annular fastening protrusion, And an extension portion that is pressed by the engagement of the container and the guard may be formed in a shape protruding downward along the edge of the lower surface of the wing portion.

The pumping tube may be divided into an upper tube and a lower tube around the wing portion. The extending portion extends from the lower edge of the wing portion of the upper tube, and the wing portion of the lower tube is inserted from the lower side So as to closely correspond to the lower surface of the wing portion of the upper tube.

In addition, it is preferable to further form a support step on the corresponding pumping tube along the lower inner peripheral surface of the pusher.

According to the configuration of the present invention described above, the use of the pumping tube simplifies the structure and reduces the number of components, thereby reducing the manufacturing cost. In addition, since the wings of the pumping tube are fixed by the coupling between the vessel and the guard, , And the shape restoring force is further improved due to the relationship that the discharge head is further extended or restored to the elongated state by raising and lowering the discharge head, thereby reducing the operation time for repeated use.

1 is an exploded perspective view schematically showing a structure of a liquid pumping device of a liquid container according to an embodiment of the present invention and a coupling relationship of these structures.
Fig. 2 is an exploded cross-sectional view schematically showing the structure of the liquid pumping device and the coupling relationship of these structures with reference to arrows II-II in Fig. 1. Fig.
FIGS. 3A and 3B are cross-sectional views schematically illustrating a state in which the shape of the pumping tube is restored in the coupling relationship shown in FIG. 1 and a state in which the shape of the pumping tube is deformed by the pusher after coupling the discharge head.
FIGS. 4A and 4B are cross-sectional views schematically illustrating the discharging process of contents contained in the container from the configuration of FIG. 1. FIG.
5 is a cross-sectional view schematically showing a modified example of the pumping tube.
6 is a schematic cross-sectional view for explaining a modified embodiment of the liquid pumping device of the liquid container of the present invention.

The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary meanings, but the inventor may appropriately define the concept of the term to describe its invention in the best way Can be interpreted as meaning and concept consistent with the technical idea of the present invention.

It should be noted that the embodiments described in this specification and the configurations shown in the drawings are merely preferred embodiments of the present invention and do not represent all the technical ideas of the present invention, It is to be understood that the invention may be embodied in many other specific forms without departing from the spirit or scope of the invention.

In the following description of the present invention, the upper side (upper side) or the lower side (lower side) will be described with reference to a state in which the opening of the container is positioned upward.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The detailed description of the technical structures in the same or similar categories will be omitted. .

1, the apparatus for pumping liquid of a liquid container according to an embodiment of the present invention has an opening G formed upward and includes a container 10 .

Such a container 10 needs to have the pressure of the contents receiving space at a constant level corresponding to the consumption amount of the contents due to the pumping action to be described later.

On the other hand, in the configuration shown in Figs. 1 to 5, an air hole 10e is formed in the lower part of the container 10 so as to allow the air to flow out, and inserted into the container 10, And a piston 12 slidably moving up and down along the inner wall of the container 10 in correspondence with the pressure change in the upper and lower portions partitioned by the partition.

6 has a structure in which a straw 60 'is provided on a support plate 20' to be described later in place of the above-described installation of the piston 12 in the container 10, 'Can prevent the leakage of the contents through the portion where the opening G of the guard 40' and the guard 40 'are engaged with each other and allow the air to flow into the container 10 freely.

An annular fastening protrusion 10b is formed on the outer circumferential surface of the opening G of the container 10 so as to correspond to the fitting of the guard 40 to be described later and the inside of the guard 40 corresponding thereto And a coupling groove 40a, which engages with the coupling projection 10b, is formed on the side surface.

5, the guard 40 can be engaged with the outer circumferential surface of the opening G of the container 10 in a screw coupling manner. And a washer W for replacing friction between the pressing portion 42 of the pumping tube 30 and the upper surface of the wing portion 32 of the pumping tube 30 corresponding thereto.

1 to 5, at the upper end of the opening G of the container 10, an edge portion of the container 10 is formed in a shape closing the upper portion of the opening G of the container 10, A part of which is inserted in correspondence with the upper edge of the opening G and a part of which is provided in the shape of covering the upper end of the opening G. [

It is preferable that such a base plate 20 has an insertion portion 22 which is fitted in the top end of the opening G in an invisible manner in the installation for the container 10, G) to maintain confidentiality.

The outer edge portion of the support plate 20 is attached to the upper end of the opening G so as to be brought into close contact with the lower surface of the wing portion 32 of the pumping tube 30 24).

A through hole 26 is formed in the central portion of the upper edge of the support plate 20 so that the contents in the container 10 are flowed in and out through the through hole 26.

In the description of the present invention, the shape of the support plate 20 shown in the drawing is expressed by a shape in which the central portion thereof is depressed downward, but this is for the purpose of expressing a preferable shape, but is not limited thereto, The shape of the lower skirt portion 34 of the pumping tube 30 to be described later may be variously modified.

On the other hand, as shown in Figs. 1 to 5, a tubular pumping tube 30 is vertically passed through the upper part of the above-mentioned support plate 20 with a material having elastic stretchability and elastic restoring force.

1 and 2, the pumping tube 30 has a side portion formed with a wing portion 32 corresponding to the edge of the receiving plate 20, and includes a bottom surface of the wing portion 32 And the lower portion of the upper surface of the support plate 20 elastically adheres to and covers the periphery of the through hole 26.

Here, the pumping tube 30 not only completely covers the through hole 26 except the central portion of the receiving plate 20, but also has a thickness that is sharply decreased toward the lower end. Shaped lower skirt portion 34 as shown in FIG.

The reason why the lower end of the pumping tube 30, that is, the lower skirt 34 is formed in a sharp shape is that when the pressure is applied inside the pumping tube 30, the positive pressure acting on the surface of the pumping tube 30, So that the internal pressure can be prevented from being lost through the through-hole 26.

The lower skirt portion 34 is designed to be easily bent inward when negative pressure (vacuum pressure) acts inside the pumping tube 30 so that the through hole 26 can be opened.

As shown in Figs. 1 to 3A, the upper portion of the pumping tube 30 forms an upper skirt portion 36 having a shape gradually increasing inward and outward upward from the wing portion 32 and rising upward.

As shown in Fig. 2, the upper skirt portion 36 is formed to have the same or similar thickness from the wing portion 32 to a predetermined height above the wing portion 32. The upper skirt portion 36 has a post 54 with a relatively thin thickness so as to be brought into close contact with the outer circumferential surface of the posts 54. A thickened band 38 is formed at the end of the belt 54 so as to increase the strength of the belt 54 elastically adhered to the posts 54 desirable.

It is preferable that the thickness of the belt 38 is thinner than that of the portion for forming the shape restoring force. Such a belt 38 is formed such that the pressure inside the pumping tube 30 is constant The critical pressure that causes the liquid to flow out).

Accordingly, when the pressure inside the pumping tube 30 increases above the above-mentioned level, the contents flow at a high speed toward the discharge port 50a.

That is, the greater the elastic restoring force of the belt 38, the greater the flow rate of the contents to be discharged.

In addition, a rib R for further increasing the restoring force due to elongation between the wing portions 32 and the portions corresponding to the pushers 56, which will be described later, is formed in the upper portion of the upper skirt portion 36 It is also possible to form more.

Although the pusher 56 is described as being separately formed between the side wall 52 and the post 54 in the drawing, the present invention is not limited thereto. The side wall 52 may be formed on the upper portion of the pumping tube 30 The side wall 52 may be configured to replace the pusher 56 or the lower end shape of the side wall 52 may be deformed.

The spacing between the post 54 and the pusher 56 is set such that the superficial skirt portion 36 including the support tongue 37 to be described later is elastically spread from the outer peripheral surface of the post 54, It is desirable to design the flow to such an extent.

Further, it is possible to further form an extending portion 32a that extends downward along the circumference of the lower surface of the wing portion 32 of the pumping tube 30.

The extended portion 32a is pressed against the outer peripheral surface of the opening G at the time of engagement of the guard 40 with respect to the opening G of the container 10 to be described later.

5, the pumping tube 30 can be divided into an upper tube 30a and a lower tube 30b centering on an intermediate portion of the thickness of the wing portion 32, When the inner diameter of the inner space of the pumping tube 30 is larger than the inner diameter of the lower end portion of the pumping tube 30 or when various functional parts (not shown) are further formed, .

When the pumping tube 30 is divided into the upper tube 30a and the lower tube 30b as described above, the extending portion 32a is extended from the lower edge of the wing portion 32 of the upper tube 30a And the wing portion 32 of the lower tube 30b may be inserted from the lower side of the extending portion 32 to be in close contact with the lower surface of the wing portion 32 of the upper tube 30a, The upper tube 30a and the lower tube 30b may be separated from each other by the thickness of the upper tube 30a and the lower tube 30b.

5, in the upper portion of the pumping tube 30, a supporting chin 37 corresponding to the inner surface of the lower end of the pusher 56 in close contact with the inner peripheral surface of the lower end of the pusher 56 May be further formed.

As described later, in the process in which the pusher 56 presses and presses the upper portion of the pumping tube 30 by the lowering of the discharge head 50, So that the portion corresponding to the inner side portion of the elastic member 56 does not act on the stretching force.

The upper skirt portion 36 protruding upward from the inside of the pusher 56 can minimize the influence of the external force by the support jaws 37 to maintain the shape restoring force, And maintains a state of being elastically adhered to the outer peripheral surface.

1 to 5, the liquid pumping device of the liquid container of the present invention has a structure in which the edge of the receiving plate 20 and the edge of the pumping tube (not shown) And a guard (40) for pressing the wing portion (32) of the wing (30).

The guard 40 has a guard 40 formed with a guide 44 in the vertical direction below the downwardly engaging jaw 46 formed on the upper side.

Here, the above-described downwardly engaging jaw 46 is formed along the upper inner circumferential surface of the guard 40 in Figs. 1 and 2, and the guide 44 is also formed below the downwardly engaging jaw 46, But is not limited thereto.

An example of this is that the downwardly engaging jaw 46 is formed along the upper outer peripheral surface of the guard 40 and the lower outer wall of the guide 40 forms a guide, May be formed in a shape to be inserted into the upper end of the guard 40 described above or in a shape surrounding the upper end of the guard 40. [

A portion of the inner wall of the guard 40 corresponding to the fastening protrusion 10b formed on the outer peripheral surface of the opening G of the container 10 is fitted with the fastening protrusion 10b Thereby forming a fastening groove 40a.

The engagement protrusions 10b and the engagement grooves 40a are formed on the inner side of the guard 40 along with the outer edge portions of the support plate 20 and at positions vertically opposed to the wing portions 32 of the pumping tube 30. [ The pressing portion 42 presses the wing portion 32 from the engagement of the wing portion 32. As shown in Fig.

A downwardly engaging jaw 46 protruding inwardly or outwardly from the upper side of the guard 40 and closely corresponding to an outer side wall or an inner side wall of a discharge head 50 described later is formed. Is a guide 44 for guiding the upward and downward movement of the discharge head 50, which will be described later.

1 and 2, the liquid pumping device of the liquid container according to the present invention is provided with a downwardly engaging jaw 46 formed on the guard 40 described above and a lower guide 44 And an ejection head 50 having an upwardly engaging step 52a formed on the side wall 52 receiving the up-and-down sliding guide, the upwardly-restricting movement of which is restricted by the downwardly engaging step 46.

The pumping tube 30 is provided with a post 54 which is fitted in the inner central portion of the ejection head 50 in such a manner as to closely contact the inner surface of the upper end of the upper skirt portion 36 of the pumping tube 30, Is communicated with the discharge port 50a.

A pusher 56 is provided between the post 54 and the side wall 52 so that the upper portion of the pumping tube 30 corresponding to the lower side is pressed to be in a stretched state. (50) is placed on the guard (40) and is in a state of pressing the upper part of the corresponding pumping tube (30).

At this time, the section S between the wing portion 32 pressed by the fastening of the guard 40 and the portion pressed by the pusher 56 has already passed the pusher 56 to the position of the ejection head 50, When the discharge head 50 is lowered, the already stretched section S is further elongated and lowered to reduce the volume in the pumping tube 30, and the volume of the reduction .

When releasing the pressing force of the ejection head 50, the section S between the wing portion 32 and the portion pressed by the pusher 56 is sufficiently stretched so that the elastic restoring force to be retracted And this elastic restoring force acts as a force for raising the discharge head 50. [0064]

The resilient restoring force resulting from the contraction of the pumping tube 30 is restored from the forced force, thereby further increasing the lifting speed of the discharging head 50 in comparison with its own restoring force.

The configuration shown in Fig. 6 shows another modified embodiment of the present invention. In the configuration shown in Fig. 6, a straw 60 'is provided in correspondence with the lifting and lowering of the piston 12, At least one hole h is formed in a portion of the region located inside the opening G of the container 10 '. On the lower surface of the pumping tube 30' corresponding to the hole h, And a vertical skirt portion 39 'which extends through the hole h and can be brought into close contact with the inner wall of the opening G is formed.

An incision groove 10d 'is formed on the upper portion of the opening G corresponding to the vertical skirt portion 39' and a guard 40 'is formed on the outer peripheral surface of the opening G extending from the incision groove 10d' An air inlet groove 10c 'is formed to form an air passage.

The configuration of the air inlet groove 10c ', the incision groove 10d' and the vertical skirt portion 39 'described above is such that the opening G of the container 10' corresponds to the installation of the straw 60 ' Is configured to solve the problem that it is difficult to introduce air into the container 10 'by pressing the wing portion 32 of the pumping tube 30'.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is not.

10: container 10a: container inner wall
10b: fastening projection 10c ': air inlet groove
10d: incision groove 10e: air hole
12: piston 20:
22: insert 24: rim
26: through hole 30: pumping tube
32: wing portion 32a: extension portion
34: lower skirt part 36: upper skirt part
37: support jaw 38: strip
39 ': vertical skirt part 40: guard
40a: fastening groove 42:
44: guide 46: downward jaw
50: Discharge head 50a: Discharge port
52: side wall 52a: upward jaw
54: post 56: pusher
60 ': Straw R: Rib
S: Extension section W: Washer
G: opening h: hole

Claims (5)

(10) having an opening (G) formed thereon;
(20) provided with a through hole (26) communicating with the inside of the container (10) at a central portion thereof, the edge portion being provided at the periphery of the opening (G) of the container (10);
A wing portion 32 corresponding to the edge of the receiving plate 20 is formed on the side portion of the wing portion 32 and a lower portion of the wing portion 32 is formed on the side of the receiving plate 32, A pumping tube 30 covering the upper surface of the through hole 26 and covering the periphery of the through hole 26 and gradually decreasing toward the upper side of the wing portion 32;
A pressing portion 42 for pressing the edge of the receiving plate 20 and the wing portion 32 of the pumping tube 30 with respect to the opening G of the container 10 is formed in a tubular shape, Guards (40) formed on the lower side of the downwardly engaging jaws (46) formed on the upper surface of the guide (44) in a vertical direction; And
The guide 44 is guided by the side wall 52 receiving the up and down sliding guide from the downwardly engaging jaw 46 and the upwardly engaging jaw 52a And a post 54 which is fitted into the upper end inner surface of the pumping tube 30 so as to protrude downward inwardly. The outer portion of the post 54 communicates with the discharge port 50a And a pusher 56 for pushing the upper portion of the corresponding pumping tube 30 between the posts 54 and the side walls 52 so as to be in a stretched state. / RTI > The method according to claim 1,
The attachment of the guard 40 to the container 10 is performed by forming an annular fastening protrusion 10b along the outer peripheral edge of the opening G of the container 10 and attaching the corresponding guard 40 (40a) is formed on the inner circumferential edge of the inner circumferential surface
An extension portion 32a which is pressed down by the engagement of the container 10 and the guard 40 is formed in a shape protruding downward along the edge of the lower surface of the wing portion 32 of the pumping tube 30 Characterized in that the liquid pumping device is a liquid pumping device. The method according to claim 1,
The guard 40 is installed on the vessel 10 in such a manner that the vessel 10 and the guard 40 are protruded downward along the edge of the lower surface of the wing portion 32 of the pumping tube 30. [ An extension portion 32a which is pressed by the engagement of the extension portion 32a,
Wherein the pumping tube (30) is divided into an upper tube (30a) and a lower tube (30b) by being formed around the wing (32). The method of claim 3,
The extended portion 32a extends from the lower edge of the wing portion 32 of the upper tube 30a and the wing portion 32 of the lower tube 30b is inserted from the lower side of the extended portion 32a, And the lower surface of the wing portion (32) of the tube (30a) corresponds closely to the lower surface of the wing portion (32) of the tube (30a). The method according to claim 1,
And a supporting jaw (37) is further formed on the corresponding pumping tube (30) along the inner peripheral surface of the lower end of the pusher (56).

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