KR101483654B1 - Pipette apparatus for automatic filling up - Google Patents

Abstract

A pipette device capable of being automatically charged according to the present invention supplies only a certain amount of air to a pipette assembly through which the content is discharged even when a user imposes excessive force. Therefore, waste of the content, caused by discharging an excessive amount of the content, is prevented. The pipette device capable of being automatically charged includes: the pipette assembly (20) which sucks the content and makes the content be filled therein; a button assembly (30) which receives operation force of the user and provides a change of pressure to the pipette assembly (20); a bellows (40) which is made of a flexible material and is contracted or expanded when the button assembly is relatively moved; and a housing (50) which allows the pipette assembly (20), the button assembly (30), and the bellows (40) to be joined with the inside thereof and includes a screw (51) formed on the inside thereof to be spirally joined with another screw (11) of a container (10).

Description

TECHNICAL FIELD [0001] The present invention relates to an automatic filling pipette device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic filling pipette device, and more particularly, to an automatic filling pipette device capable of discharging a predetermined amount of contents sucked into a pipette.

In general, it is a method of using liquid contents such as cosmetics that use a small amount of eye cream at a time, but preferably use a precise quantity, and conventionally, a method of individually packing in the form of capsules etc. is used for each use amount . However, such an individual packaging method has a problem in that it is extremely inefficient since a relatively large amount remains in the capsule even after the user uses the contents.

In order to overcome the disadvantages of such an individual packing method, the contents are taken out of the container every time when the contents are put into a container and then used with a general pipette or drawing device having a syringe structure or using a drawing device having a configuration of a push pump And a configuration for using it is devised.

However, in the case of a drawing device of a general pipette structure, there is a disadvantage in that it is impossible or difficult to accurately draw a certain amount of each time it is used because the amount of the drawn and drawn-out portion varies depending on the degree of pressing by the user.

In the case of using the drawing means of the syringe structure, there is a problem in configuration such as extremely reducing the diameter of the syringe or making the stroke of the syringe piston extremely small in consideration of the fact that a very small amount of about 1 ml is used in most cases As a matter of course, there is a disadvantage that it is very cumbersome to use the device because the piston of the syringe is pulled out to suck out the contents and then the contents are sucked and then the piston of the syringe is pushed again to withdraw the contents.

On the other hand, in the case of the drawing means having a push pump structure, there is an advantage in that a certain amount of contents can be drawn out each time the button is simply pressed. However, in addition to the structure forming the inside and the outside of the pump, , A discharge port, a spring, and a valve structure, and the like. In addition, it is common to use a suction tube to suck the contents of a push pump installed on the upper part of the container. In this case, depending on the position of the suction tube, There is a disadvantage in that the draw-out is impossible.

Korean Patent No. 10-1083262 Korean Patent No. 10-1239027

An object of the present invention is to provide an automatic filling pipette device capable of discharging a predetermined amount of contents sucked into a pipette.

The present invention relates to a pipetting device in which a thread 11 is formed and is screwed into a container 10 in which contents are stored, the pipette assembly 20 having the contents sucked and filled therein; A button assembly 30 disposed above the pipette assembly 20 and relatively moved toward the pipette assembly 20 to receive a user's operation force and provide a pressure change to the pipette assembly 20; A bellows 40 formed of a flexible material to connect the pipette assembly 20 and the button assembly 30 and to be compressed or inflated when the button assembly 30 is moved relative to the bellows 40; A housing 50 in which the pipette assembly 20, the button assembly 30 and the bellows 40 are assembled and the threads 51 are formed on the inside so as to be screwed with the threads 11 of the container 10; And a pipette device including the pipette device.

The button assembly (30) is provided with a discharge channel formed to allow discharged air to flow toward the pipette assembly (20) side. A suction passage formed to allow the outside air to flow into the button space 81 of the button assembly 30; A discharge check valve (70) for opening / closing the discharge passage according to a change in pressure of the button assembly; And a suction check valve 90 for opening and closing the suction passage according to the pressure change of the button assembly.

The button assembly (30) is coupled to the housing (50) and has a button mount (60) to which the bellows (40) is closely attached; And a button space (81) is formed therein to store air and is positioned between the button mount (60) and the housing (50), and the button mount (60) A pump 80 for providing compressed air to the bellows 40; The pump is installed in the button mount 60 and moves air to the pipette assembly 20 through the button mount 60 when the pressure inside the pump 80 is positive. A discharge check valve (70) for shutting off the air on the side of the pipette assembly (20) to the side of the pump (80) when the pressure is negative; When the pressure inside the pump 80 is negative, external air is sucked into the pump 80 through the button mount 60, and the air is sucked into the pump 80 through the button mount 60, And a suction check valve (90) for blocking air from being discharged from the pump (80) when the pressure is a positive pressure.

The button assembly 30 includes a button mount 60 fixed to the housing 50 and coupled with the bellows 40 and having a discharge hole 65 and a suction hole 67; The button space 81 is formed inside the button space 60 and is positioned between the button mount 60 and the housing 50 to close the suction hole 67. When the button space 81 is formed with a negative pressure, A pump 80 having a suction diaphragm 94 for opening the suction hole 67 by a pressure difference; The button hole 81 is provided in the button mount 60 so that the discharge hole 65 is closed and the discharge hole 65 is opened only when a positive pressure is formed in the button space 81, And a check valve (70) that flows toward the bellows (40).

The button mount (60) includes a button body (62) disposed between the housing (50) and the pump (80); A discharge hole 65 formed in the button body 62 and closed by the discharge check valve 70 and opened in the direction of the bellows 40 only when the pump 80 is pressurized and positive pressure is formed therein, ; A button mount fixing portion 66 to which the bellows 40 is coupled and fixed; A suction hole 67 formed in the button body 62 and closed by the suction check valve 90 and opened toward the inside of the pump 80 only when negative pressure is formed inside the pump 80, ; And a pump mount support part 68 for separating the discharge hole 65 and the suction hole 67 and for fitting the pump 80 when assembled.

When the bellows 40 is contracted while being separated from the container 10 while the pipette assembly 20 and the button assembly 30 are relatively moved in the direction of approaching the bottle 10, The bellows 40 may be inflated while the pipette assembly 20 and the button assembly 30 move relative to each other.

The contents stored in the container 10 may be sucked into the pipette assembly 20 when the bellows 40 is inflated.

The automatic filling pipette device according to the present invention has an effect that the user does not need to perform a separate operation to fill the contents because the contents are filled in the pipette assembly during the separation process with the container.

In addition, in the automatic filling pipette device according to the present invention, a discharging flow path for air is formed on the side of the pipette assembly 20 when the user presses the pump 80. In the course of restoring the pump 80, Since the suction flow path in which the outside air is sucked into the suction port 81 is formed, even if the pump 80 is repeatedly operated, there is always the effect that only a certain amount of the contents is discharged.

In addition, since the automatic filling pipette device according to the present invention supplies only a certain amount of air to the side of the pipette assembly from which the contents are discharged even if the user applies excessive operation force, the effect is prevented that the contents are discharged more than necessary and wasted .

1 is a perspective view of an automatic filling pipette device according to an embodiment of the present invention;
Fig. 2 is a front view of Fig. 1
Figure 3 is a cross-sectional view taken along line AA of Figure 2;
Fig. 4 is an exploded perspective view of Fig.
Fig. 5 is a front view of Fig. 4
Figure 6 is a cross-sectional view taken along line BB of Figure 5;
Figure 7 is a perspective view of the button assembly shown in Figure 4;
FIG. 8 is a bottom perspective view of FIG.
9 is a front view of Fig. 7
10 is a cross-sectional view taken along CC in Fig. 9
Fig. 11 is a perspective view showing the bellows and the pipette mount engagement state shown in Fig. 7,
Fig. 12 is a front view of Fig. 11
13 is a cross-sectional view taken along the line DD of Fig.
Fig. 14 is a perspective view showing the combined state of the button mount and the discharge check valve shown in Fig. 7
Fig. 15 is a bottom perspective view of Fig.
Fig. 16 is a front view of Fig. 14
17 is a sectional view taken along line EE in Fig. 16
Fig. 18 is a perspective view of the pipette mount shown in Fig. 7
19 is a bottom perspective view of Fig. 18,
20 is a front view of Fig. 18
21 is a sectional view taken along the FF of Fig. 20
Fig. 22 is a perspective view showing the combined state of the pump and the suction check valve shown in Fig.
23 is a bottom perspective view of Fig. 22
24 is a front view of Fig. 22
25 is a sectional view taken along line GG in Fig. 24

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Even if the terms are the same, it is to be noted that when the portions to be displayed differ, the reference signs do not coincide.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

The terms first, second, etc. in this specification may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

Also, when a part is referred to as "including " an element, it does not exclude other elements unless specifically stated otherwise.

FIG. 1 is a perspective view of an automatic filling pipette device according to an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a sectional view cut along AA of FIG. 2, Fig. 5 is a front view of Fig. 4, Fig. 6 is a cross-sectional view taken along line BB of Fig. 5, Fig. 7 is a perspective view of the button assembly of Fig. 9 is a front view of Fig. 7, Fig. 10 is a sectional view taken along CC of Fig. 9, Fig. 11 is a perspective view of the bellows and pipette mount engaged state shown in Fig. 7, , Fig. 13 is a sectional view taken along DD of Fig. 12, Fig. 14 is a perspective view showing the combined state of the button mount and the discharge check valve shown in Fig. 7, Fig. 15 is a bottom perspective view of Fig. 14 is a front view of Fig. 14, Fig. 17 is a sectional view taken along line EE of Fig. 16, Fig. 18 is a cross- 19 is a bottom perspective view of Fig. 18, Fig. 20 is a front view of Fig. 18, Fig. 21 is a sectional view taken along the FF of Fig. 20, Fig. 22 is a perspective view of the pipette mount shown in Fig. FIG. 23 is a bottom perspective view of FIG. 22, FIG. 24 is a front view of FIG. 22, and FIG. 25 is a sectional view taken along line GG of FIG.

As shown in the drawings, the automatic filling pipette device according to the embodiment of the present invention is formed with a thread 11 on the outside thereof and is coupled to a container 10 in which contents are stored, A button assembly 30 disposed above the pipette assembly 20 and relatively moved toward the pipette assembly 20 and adapted to receive a user's operation force to provide a pressure change to the pipette assembly 20, A bellows 40 formed of a flexible material and connected to the pipette assembly 20 and the button assembly 30 and compressed or inflated when the button assembly 30 is moved relative to the bellows 40, And a housing 50 in which a button assembly 30 and a bellows 40 are assembled and threads 51 are formed on the inside to be screwed with the threads 11 of the container 10.

The container 10 has a container inlet 12 formed on the upper side thereof, a screw thread 11 formed on the outer peripheral surface of the container inlet 12, and a viscous content is stored in the container.

Here, the wiper 14 is coupled to the inside of the container inlet 12.

The pipette assembly 20 includes a pipette 22 positioned inside the container 10 when it is engaged and sucking and storing the contents therein and a mounting hole 23 for supplying pressure to the pipette 22, And a pipette mount 24 to which the pipette 22 is fixed.

The pipette 22 is inserted into the container 10 through a wiper 14 installed in the container inlet 12 and the wiper 14 sweeps the contents of the pipette 22 to remove unnecessary contents To the outside of the container (10).

The pipette mount 24 is shaped to penetrate the mount hole 23 in a vertical direction and can provide a pressure change to the inside of the pipette 22 through the mount hole 23. [

A pipette fixing part 25 projecting downward from the pipette mount 24 is formed and the pipette 22 is fitted and fixed to the pipette fixing part 25.

A bellows fixing part 26 protruded upward from the pipette mount 24 is formed and the bellows 40 is fitted and fixed to the bellows fixing part 26 so that external air is prevented from being introduced into the bellows fixing part 26.

The bellows fixing part 26 is formed around the mount hole 23. When the bellows 40 is engaged, the inside of the bellows 40 and the mounting hole 23 are formed to be connected to each other.

The bellows 40 includes a bellows body 42 formed of a flexible material having elasticity and having a compression space 41 formed therein and a bellows fixed portion 42 formed at the upper and lower ends of the bellows body 42 43) < / RTI >

Here, the bellows body 42 may be formed with a plurality of corrugations or multi-stages, and the internal pressure is changed while the length of the bellows body 42 is expanded or contracted, thereby transferring pressure to the pipette 22.

The button assembly 30 is coupled to the housing 50 and is fixed to the button mount 60. The button mount 60 is made of a resilient and flexible material and air is stored therein. A pump 80 positioned between the button mount 60 and the housing 50 and providing compressed air to the bellows 40 through the button mount 60; When the pressure inside the pump 80 is positive, the air is moved to the pipette assembly 20 through the button mount 60. When the pressure inside the pump 80 is negative, A discharge check valve 70 for blocking the air on the side of the pump 20 from being sucked into the pump 80 and a discharge check valve 70 provided on the button mount 60. When the pressure inside the pump 80 is negative, Outside air is supplied to the pump 80 side through the button mount 60 Mouth and, when the pressure within the pump 80 is a positive pressure, and a suction check valve 90 which prevents the inside of the pump 80 discharge air.

The discharge check valve 70 is installed in the button mount 60 so that air flows only toward the bellows 40 in the pump 80 and air flows in the opposite direction So that the pipette assembly 20 is supplied with a pressure when the air is discharged, so that the contents stored in the pipette assembly 20 are discharged in a predetermined amount.

To this end, the button mount 60 includes a discharge channel for discharging air from the pump 80 to the pipette assembly 20, and a suction channel for sucking air into the pump 80 from the outside of the button assembly. Respectively.

The button mount 60 is formed on the button body 62 and is closed by the discharge check valve 70. When the pump 80 is pressurized and positive pressure is formed inside the button mount 62, A button mount fixing portion 66 to which the bellows 40 is coupled and fixed and a discharge hole 65 which is opened to the bellows 40 and which is formed on the button body 62, A suction hole 67 which is closed by the suction hole 90 and opens toward the inside of the pump 80 only when negative pressure is formed inside the pump 80, And a pump mount support portion 68 to which the pump 80 is attached when assembled.

The discharge hole 65 is a discharge flow path for flowing air only to the pipette assembly 20 side and the suction hole 67 is a suction flow path for flowing air only to the inside of the pump 80.

In this embodiment, a discharge check valve 70 is installed in the discharge hole 65, and a suction check valve 90 is installed in the suction hole 67.

The button mount fixing portion 66 is fitted and fixed to the bellows fixing portion 43.

The discharge hole 65 is formed at the center of the axis of the button mount 60 and is inserted and fixed to the button body 62 through the discharge hole 65. [

The discharge check valve 70 installed in the discharge hole 65 includes a discharge check body 72 coupled to and fixed to the button mount 60 and a discharge check valve 70 formed at a lower end of the discharge check body 72, A discharge diaphragm 74 for discharging air to the pipette assembly 20 side while being elastically deformed when the pressure inside the pump 80 is positive, and a discharge diaphragm 74 formed to be concave in the discharge check body 72, And a discharge check fixing groove (76) fixed to the button mount (60).

The discharge check valve (70) is formed in a wedge shape having a lower end and the discharge diaphragm (74) is formed at a lower end. The discharge diaphragm 74 is formed of a thin elastic material and is formed so that the material is deformed by a pressure change of the pump 80 side.

The suction check valve 90 is formed in a ring shape, is coupled to the lower side of the pump 80, and has a thin suction diaphragm 94 formed on the inner edge thereof.

The suction diaphragm 94 is formed of a material that is elastically deformed in response to a pressure change. The inner end of the suction diaphragm 94 faces upward, and is in close contact with the pump mount support portion 68.

Therefore, if the pressure inside the pump 80 is positive, the suction diaphragm 94 is elastically deformed so that the suction diaphragm 94 and the pump mount supporting portion 68 are further closely contacted, and the pressure inside the pump 80 becomes negative pressure , The suction diaphragm (94) is deformed and air flows through the pump mount support portions (68).

Meanwhile, the suction check valve (90) closes the suction hole (67) of the button mount (60) while being coupled to the pump (80).

The suction holes 67 are located radially outward with respect to the discharge holes 65 and are in close contact with the lower end of the pump 80 coupled to the upper side of the button mount 60 and are disposed at intervals of 90 degrees. do.

Only when negative pressure is formed inside the pump 80, air is sucked into the pump 80 through the suction hole 67 by the pressure difference.

Therefore, in order to improve the sealing force of the discharge hole 65 and the suction hole 67, the check valve 60 is preferably made of synthetic resin having elasticity.

The pump 80 has a button space 81 formed therein.

The pump body 82 is formed of a flexible synthetic resin material having elasticity, and when pressed by the user's operation force, deforms to form a positive pressure in the button space 81.

The housing 50 includes an inner housing 52 formed with threads 51 to be screwed into the container 10 and an inner housing 52 coupled to the inner housing 52 and the pump 80 of the pump assembly 30 being exposed And an outer housing 54 having a pump through-hole 55 formed therein.

The inner housing 52 and the outer housing 54 are assembled after being assembled.

The button mount 60 is disposed inside the housing 50 and is fixed between the inner housing 52 and the outer housing 54. The button mount 60 is fixed to the inner housing 52 52).

In this embodiment, the button mount 60 is fixed in the process of assembling the inner housing 52 and the outer housing 54. However, unlike the present embodiment, the button mount 60 is fixed to the housing 50 through a separate fastening member. .

Hereinafter, the operation of the pipette device according to one embodiment of the present invention will be described in detail with reference to the drawings.

When the pipette assembly according to the present embodiment is engaged with the thread 11 of the container 10, the pipette assembly 20 is moved toward the button assembly 30 to compress the bellows 40, The compressed air in the compressed space 41 is discharged through the pipette 22 into the container.

Thereafter, when the user rotates the pipette device to release the screw connection with the container 10, the pipette assembly 20 forms the negative pressure in the compression space 41 while the bellows 40 is restored to the initial state And the contents stored in the container 10 are sucked into the pipette 22 by the negative pressure.

That is, in the process of separating the pipette device from the user, the contents stored in the container 10 are sucked and filled in the pipette device.

Next, when the user desires to discharge the sucked contents, the user presses the pump 80 and presses the button space 81 inside the pump 80 by the operation force applied from the user.

Here, the button space 81 of the button assembly 30 forms a closed space because the pump 80 is closely attached to the button mount 60. However, when the user presses the button space with the operation force of the user, The air in the button space 81 is discharged to the pipette assembly 20 side while the air in the button space 81 is deformed.

Therefore, when the pump 80 is pressed, the air in the button space 81 is moved to the pipette assembly 20 to discharge the contents stored in the pipette 22 by a predetermined amount.

The discharge diaphragm 74 is deformed only in the process of discharging the air, and after the air is discharged, the discharge diaphragm 74 is restored to the initial state by the elasticity of the material, thereby keeping the button space 81 in the closed state.

Particularly, even if the pressure applied by the user to the pump 80 is increased, the discharged air is limited, so that even if the user's operation force is increased, the amount of the discharged contents can be limited and the contents can be prevented from being wasted.

Next, when the user removes the operating force applied by the pump 80, the discharge diaphragm 74 keeps the discharge hole 65 in a closed state, so that air movement under the discharge diaphragm 74 is not generated It is possible to prevent the contents stored in the pipette 22 from being sucked back to the upper side.

Here, when the operation force applied to the pump 80 is removed, the shape of the pump 80 is restored to its initial shape, a negative pressure is formed in the button space 81, and the suction diaphragm 94 And external air is sucked into the button space 81 through the suction hole 67.

In the pipette device according to the present embodiment, a discharge passage for air is formed on the side of the pipette assembly 20 when the user presses the pump 80, and the button space 81 ), There is an effect that even when the pump 80 is repeatedly operated, only a predetermined amount of the contents is always discharged.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10: container 11: threaded
20: pipette assembly 22: pipette
24: Pipette mount 30: Button assembly
40: Bellows 41: Compression space
50: housing 52: inner housing
54: outer housing 60: button mount
63: coupling hole 65: discharge hole
67: suction hole 70: discharge check valve
74: Discharge diaphragm 80: Pump
90: Suction check valve 94: Suction diaphragm

Claims (7)

A pipette device threaded into a container (10) in which a thread (11) is formed and in which contents are stored,
A pipette assembly 20 in which the contents are sucked and filled;
A button assembly 30 disposed above the pipette assembly 20 and relatively moved toward the pipette assembly 20 to receive a user's operation force and provide a pressure change to the pipette assembly 20;
A bellows 40 formed of a flexible material to connect the pipette assembly 20 and the button assembly 30 and to be compressed or inflated when the button assembly 30 is moved relative to the bellows 40;
A housing 50 in which the pipette assembly 20, the button assembly 30 and the bellows 40 are assembled and the threads 51 are formed on the inside so as to be screwed with the threads 11 of the container 10; / RTI >
The button assembly (30)
A button mount (60) fixedly coupled to the housing (50) and to which the bellows (40) is closely attached;
And a button space (81) is formed therein to store air and is positioned between the button mount (60) and the housing (50), and the button mount (60) A pump 80 for providing compressed air to the bellows 40;
The pump is installed in the button mount 60 and moves air to the pipette assembly 20 through the button mount 60 when the pressure inside the pump 80 is positive. A discharge check valve (70) for shutting off the air on the side of the pipette assembly (20) to the side of the pump (80) when the pressure is negative;
When the pressure inside the pump 80 is negative, external air is sucked into the pump 80 through the button mount 60, and the air is sucked into the pump 80 through the button mount 60, And a suction check valve (90) for blocking air from being discharged from the pump (80) when the pressure is a positive pressure.
The method according to claim 1,
In the button assembly 30,
A discharge channel formed to allow discharged air to flow toward the pipette assembly 20;
A suction passage formed to allow the outside air to flow into the button space 81 of the button assembly 30;
A discharge check valve (70) for opening / closing the discharge passage according to a change in pressure of the button assembly;
And a suction check valve (90) for opening and closing the suction passage in accordance with a change in pressure of the button assembly.
delete The method according to claim 1,
The button assembly (30)
A button mount 60 fixed to the housing 50 and coupled with the bellows 40 and having a discharge hole 65 and a suction hole 67;
The button space 81 is formed inside the button space 60 and is positioned between the button mount 60 and the housing 50 to close the suction hole 67. When the button space 81 is formed with a negative pressure, A pump 80 having a suction diaphragm 94 for opening the suction hole 67 by a pressure difference;
The button hole 81 is provided in the button mount 60 so that the discharge hole 65 is closed and the discharge hole 65 is opened only when positive pressure is formed in the button space 81, And a discharge check valve (70) which flows toward the bellows (40).
The method of claim 4,
The button mount (60)
A button body (62) disposed between the housing (50) and the pump (80);
A discharge hole 65 formed in the button body 62 and closed by the discharge check valve 70 and opened in the direction of the bellows 40 only when the pump 80 is pressurized and positive pressure is formed therein, ;
A button mount fixing portion 66 to which the bellows 40 is coupled and fixed;
A suction hole 67 formed in the button body 62 and closed by the suction check valve 90 and opened toward the inside of the pump 80 only when negative pressure is formed in the pump 80, ;
And a pump mount support part (68) for separating the discharge hole (65) and the suction hole (67) from each other and to which the pump (80) is closely attached when assembled.
The method according to any one of claims 1, 2, 4 or 5,
The bellows 40 is contracted while being relatively moved in a direction in which the pipette assembly 20 and the button assembly 30 are moved toward each other,
Wherein the bellows (40) is configured to be inflated while the pipette assembly (20) and the button assembly (30) are moved away from each other when separated from the container (10).
The method of claim 6,
Wherein the contents stored in the container (10) are sucked into the pipette assembly (20) when the bellows (40) is inflated.

Images