阅读说明：本技术 弹性部件及包括其的泵组件 (Elastic component and pump assembly comprising same ) 是由 奇重铉 金哲起 崔成雄 于 2020-07-13 设计创作，主要内容包括：弹性部件及包括其的泵组件。根据本发明的实施例,提供一种弹性部件。上述弹性部件可包括：上部支撑体；下部支撑体,设在上述上部支撑体的下侧；以及连接部,连接上述上部支撑体和上述下部支撑体,以外侧方向重复形成峰和谷以对上述弹性部件进行加压时发生弯曲变形。(Elastomeric element reaches pump assembly including it. According to an embodiment of the present invention, an elastic member is provided. The elastic member may include: an upper support body; a lower support body provided below the upper support body; and a connecting portion connecting the upper support and the lower support, and repeatedly forming peaks and valleys in an outer direction to generate bending deformation when the elastic member is pressurized.)

1. An elastomeric component, comprising:

an upper support body;

a lower support body provided below the upper support body; and

and a connecting portion connecting the upper support and the lower support, and repeatedly forming peaks and valleys in an outer direction to generate bending deformation when the elastic member is pressurized.

2. The elastomeric component of claim 1, wherein the elastomeric component is housed in a partially compressed state within a pump assembly.

3. The elastomeric component of claim 1, wherein the elastomeric component comprises a material selected from at least one of Polyetheretherketone (PEEK), Polycarbonate (PC), Polyoxymethylene (POM), Polyketone (POK), polybutylene terephthalate (PBT), polypropylene (PP), Polyethylene (PE), polyoxypropylene (POP), polyolefin elastomer (POE), and ethylene octene/butene copolymer.

4. The elastomeric component of claim 1, wherein the peaks and valleys of the elastomeric component increase in size along a length direction to facilitate injection molding.

5. Elastomeric component according to claim 1, characterized in that it is of the bellows type, a connection being formed along the periphery and sealing the sides.

6. The elastic member according to claim 5, wherein at least one air passage for discharging air generated when the elastic member is compressed is formed in at least one of the upper support and the lower support.

7. The elastic member according to claim 1, wherein the connecting portion of the elastic member includes a first connecting portion and a second connecting portion formed to face in opposite directions, and the valleys of the first connecting portion and the second connecting portion are integrally connected to each other.

8. The elastic member according to claim 7, wherein at least one of the valleys of the connecting portion forms a restriction portion protruding toward another adjacent valley to restrict a compression distance of the elastic member.

9. The elastic member according to claim 7, wherein a first inflection point is formed at the peak of the connecting portion, and a second inflection point and a third inflection point are formed in a vertical direction inside the first inflection point, and the elastic member is bent around the first inflection point to the third inflection point.

10. A pump assembly, comprising:

the elastic member of any one of claims 1 to 9;

a cylinder having an upper portion and a lower portion opened and having a hollow interior;

the sealing cover is arranged on the inner wall of the cylinder;

a sealing part at least partially inserted into the cylinder for inhibiting the rising of the sealing cover;

a piston rod having an inlet opening opened and closed by the seal cap formed at a lower end thereof, and a passage connected to the inlet opening formed at an upper end thereof; and

a handle combined with the piston rod to be lifted and lowered together,

the elastic member is provided between the stem and the seal portion, and provides an elastic force from the seal portion toward the stem.

Technical Field

The present invention relates to an elastic member and a pump assembly including the same, and more particularly, to an environmentally friendly elastic member having sufficient elastic force and a pump assembly including the same.

Background

Generally, a pump container discharges contents to the outside by a pumping action of a pump assembly coupled to an upper portion of a container body, and includes: a container body storing contents; a pump assembly coupled to an upper portion of the container body, for vacuuming the inside of the container body and sucking contents according to a suction operation; and a button part which is positioned at the upper part of the pump component, ascends and descends along with the pressurization of the user and transmits the pressure to the pump component.

Wherein the pump assembly performs a pumping action that may discharge the contents stored in the container body to the outside, and may include a spring that provides an elastic force to the inside by such repeated pumping action. Generally, since the spring is made of a metal material, the manufacturing cost is high, and since the pump assembly is made of a different material such as plastic or metal, it is necessary to separate and dispose of the spring for reuse, which causes a problem that the spring is not easily reused.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide an environmentally friendly elastic member having a sufficient elastic force, and a pump assembly including the same.

Technical problems of the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art from the following descriptions.

An elastic member is provided according to an embodiment of the present invention. The elastic member may include: an upper support body; a lower support body provided below the upper support body; and a connecting portion connecting the upper support and the lower support, and repeatedly forming peaks and valleys in an outer direction to generate bending deformation when the elastic member is pressurized.

The elastic member may be housed in the pump assembly in a partially compressed state.

The elastic member may be made of at least one material selected from the group consisting of polyether ether ketone (PEEK), Polycarbonate (PC), Polyoxymethylene (POM), Polyketone (POK), polybutylene terephthalate (PBT), polypropylene (PP), Polyethylene (PE), Polypropylene Oxide (POP), polyolefin elastomer (POE), and ethylene octene/Butene copolymer (ethylene oxide/Butene Copolymers).

In addition, the size of the peaks and valleys of the elastic member may be increased along the longitudinal direction to facilitate injection molding.

Also, the elastic member may be a bellows type, and a connection portion may be formed along the circumference and seal the side surface.

At least one air passage for discharging air generated when the elastic member is compressed may be formed in at least one of the upper support and the lower support.

The connection portion of the elastic member may include a first connection portion and a second connection portion formed to face in opposite directions, and the valleys of the first connection portion and the second connection portion may be integrally connected to each other.

In addition, a restriction portion may be formed in at least one of the valleys of the connection portion to protrude toward another adjacent valley, so as to restrict a compression distance of the elastic member.

The peak of the connecting portion may form a first inflection point, and a second inflection point and a third inflection point may be formed in an up-down direction inside the first inflection point, and may be bent around the first inflection point to the third inflection point.

A pump assembly is provided according to an embodiment of the invention. The above pump assembly may include: the elastic member of the embodiment of the present invention; a cylinder having an upper portion and a lower portion opened and having a hollow interior; a sealing cover arranged on the inner wall of the cylinder; a sealing part, at least a part of which is inserted into the cylinder, for inhibiting the rising of the sealing cover; a piston rod having an inlet opening opened and closed by the seal cap formed at a lower end thereof, and a passage connected to the inlet opening formed at an upper end thereof; and a stem which is coupled to the piston rod and ascends and descends, wherein the elastic member is provided between the stem and the seal portion, and is capable of providing an elastic force from the seal portion toward the stem.

According to the present invention, the elastic member is made of soft plastic, so that the cost can be reduced by a simple structure, and the problem of separation and disposal from other pump assembly structures can be solved, thereby being environmentally friendly.

Further, according to the present invention, the elastic member can have sufficient elastic force and durability by the upper support, the lower support, and the connecting portion connecting the upper support and the lower support and repeatedly forming the peaks and the valleys.

Drawings

For a more complete understanding of the figures referenced in the detailed description of the invention, a brief description of each figure is provided.

Fig. 1 shows an elastic member according to an embodiment of the present invention.

Fig. 2 shows an elastic member according to an embodiment of the present invention.

FIG. 3a shows a perspective view of a pump assembly of an embodiment of the present invention.

FIG. 3b shows a cross-sectional view of a pump assembly of an embodiment of the present invention.

Fig. 4 shows a cross-sectional view of a content container according to an embodiment of the present invention.

Description of reference numerals

100. 200: elastic member 110, 210: upper support body

120. 220, and (2) a step of: lower support 130, 230: connecting part

131. 231: peaks 132, 232: grain

230-1: first connection portion 230-2: second connecting part

240-1: first inflection point 240-2: second point of inflection

240-3: third inflection point 300: pump assembly

310: the air cylinder 320: sealing cover

330: sealing part 340: piston rod

350: handle 400: contents container

410: the container portion 420: head part

430: nozzle with a nozzle body

Detailed Description

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the contents shown in the drawings. Methods of constructing and using the apparatus according to the embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numbers or designations in the various drawings indicate components or structural elements that perform substantially the same function. For convenience, the vertical and horizontal directions described below are based on the drawings, but the directions do not necessarily limit the scope of the present invention.

The terms including ordinal numbers such as first, second, etc., may be used to describe various structural elements, but the structural elements are not limited to the terms. The above terms are used for distinguishing one structural element from another structural element. For example, a first structural element may be termed a second structural element, and similarly, a second structural element may be termed a first structural element, without departing from the scope of the present invention. And/or the term includes a combination of multiple related items or an item from among multiple related items.

The terminology used in the description is for the purpose of describing the embodiments and is not intended to be limiting and/or limiting of the invention. Singular references include plural references unless the context clearly dictates otherwise. In the present specification, the terms including or having, etc. indicate the presence of the features, numerals, steps, operations, structural elements, components, or combinations thereof described in the specification, and do not preclude the presence or addition of one or more other features, numerals, steps, operations, structural elements, components, or combinations thereof.

Throughout the specification, when a certain portion is connected to another portion, the case of direct connection is included, and the case of electrical connection with another device interposed therebetween is also included. When a certain portion includes a certain component, it is possible to include other components unless otherwise stated, unless the other components are excluded.

The elastic member is compressed and decompressed in the longitudinal direction, and can exert an elastic force. The elastic member can perform a suction action of the pump assembly within the pump assembly by using the elastic force, and the pump assembly can suck and discharge the contents by the suction action.

In an embodiment, the resilient member may have a length that is longer than a stroke distance of a piston rod of the pump assembly. The length is a length of a steady state (steady state) in which the elastic member is not compressed or extended, and for example, the length may be a value of 1.4 to 3 times a stroke distance of the piston rod. However, the length is not limited to this, and various lengths may be provided according to the material, shape, and the like of the elastic member. That is, the length of the elastic member is determined in consideration of the deformation due to the repeated compression, and the compression distance of the elastic member after the deformation may be determined in accordance with or close to the stroke distance of the piston rod.

In an embodiment, the resilient member is receivable within the pump assembly in a partially compressed state. To this end, the resilient member may have a length that is longer than a receiving space of the pump assembly (e.g., a space between the stem and the sealing portion). For example, the elastic member may have a length of 1.3 to 3 times or 1.7 to 2.2 times as long as each of the receiving spaces, but is not limited thereto. As described above, even if the elastic member is partially compressed and stored in the pump assembly and the recovery rate is reduced due to the deformation of the elastic member due to repeated compression, the size of the storage space for storing the elastic member does not need to be changed, and thus the elastic member can be stably arranged.

In one embodiment, the elastic member may be configured in plurality. In this case, a plurality of elastic members are assembled in the longitudinal direction and can be provided in the pump assembly.

In one embodiment, at least a portion of the resilient member may be formed from a soft plastic material. For example, polyether ether ketone (PEEK), Polycarbonate (PC), Polyoxymethylene (POM), Polyketone (POK), polybutylene terephthalate (PBT), polypropylene (PP), Polyethylene (PE), polyoxypropylene (POP) elastomer, polyolefin elastomer (POE) copolymer, Ethylene Octene/Butene copolymer (Ethylene oxide/Butene Copolymers), and the like may be included. But is not limited thereto. As described above, the use of soft plastic as the material makes it possible to easily manufacture the elastic member and to reduce the production cost more than the conventional metal spring. Further, the weight of the pump assembly and the container having the elastic member can be reduced compared to the conventional metal spring, and the pump assembly and the container can be easily carried and can be conveniently used. And, the problem of separate disposal from other structures of the pump assembly is solved, thus being environmentally friendly.

In an embodiment, the elastomeric component may be prepared according to injection molding. Therefore, more stable performance than in the case of blow molding or the like can be provided. For example, when the elastic member is of a bellows (bellows) type, it is generally produced by blow molding, and in this case, there is a problem that the thickness of the elastic member is unevenly formed. However, the above-described problem of non-uniformity does not occur during injection molding, and thus the defect rate is reduced and the problem of asymmetric elasticity can be solved.

Fig. 1 shows an elastic member according to an embodiment of the present invention.

Specifically, (a) of fig. 1 is a perspective view of the elastic member 100, and (b) of fig. 1 is a sectional view of the elastic member 100.

Referring to fig. 1, the elastic member 100 may include: an upper support 110; a lower supporter 120 provided under the upper supporter 110; and at least one connecting part 130 connecting the upper supporter 110 and the lower supporter 120 and bending and deforming when the elastic member 100 is pressurized.

The upper supporter 110 may support an upper end of the connection part 130. When the elastic member 100 is pressurized, the upper support 110 is lowered and the pressure is transmitted to the connection portion 130, and when the pressurization is released, the upper support 110 is raised and restored by the elastic force of the connection portion 130. The lower supporter 120 may support the lower end of the connection part 130. The lower support 120 is not lifted and the connection portion 130 is supported in the pump assembly, so that the elastic force of the connection portion 130 can be directed toward the upper support 110.

The upper support 110 and the lower support 120 may be hollow inside. The hollowness of the elastomeric member 100 may allow the shaft of the pump assembly to sit inside, and the hollowness of the elastomeric member 100 may allow the elastomeric member 100 to sit inside. In this case, the upper supporter 110 and the lower supporter 120 may have a circular ring shape, for example, but not limited thereto.

The connection portion 130 may elastically connect the upper supporter 110 and the lower supporter 120. At this time, the connection portion 130 may be repeatedly formed with a peak 131 protruding outward and a valley 132 extending inward from the peak 131 in the longitudinal direction. When the elastic member 100 is pressurized, the connection portion 130 is bent and deformed and may generate an elastic force (i.e., elastic compression). When the pressing is released in this state, the connection portion 130 can be restored to its original state while the bending deformation is released by the elastic force.

The connection portion 130 of the elastic member 100 connects the upper support 110 and the lower support 120, and may be formed in a bellows type. Specifically, one connection portion 130 is provided along the circumference of the elastic member 100, and a peak 131 protruding to the outside and a valley 132 introduced from the peak 131 to the inside are repeatedly formed at the connection portion 130 in the length direction, whereby the side surface can be sealed.

According to embodiments, the upper support 110, the lower support 120, and the connecting portion 130 may have the same or different materials. For example, the upper support 110 and the lower support 120 may have a rigid material stronger than the connection portion 130. For example, the connection portion 130 may be made of a material having a stronger elastic force than the upper support 110 and the lower support 120.

In one embodiment, the elastic members 100 may be respectively configured in a plurality. That is, a plurality of elastomeric members 100 may be serially disposed within the pump assembly, which may be supported from one another by the upper support 110 and/or the lower support 120. As described above, the entire length of the elastic member 100 can be variously changed by combining a plurality of elastic members 100.

In one embodiment, at least one of the coupling protrusion and the coupling groove may be formed on at least one of the upper surface of the upper supporter 110 and the lower surface of the lower supporter 120. When the elastic member 100 is formed in plural, they may be connected to each other by the coupling between the coupling protrusion and the coupling groove. For example, a coupling protrusion is formed downward on the lower surface of the lower supporter 120, a coupling groove is formed upward on the upper surface of the upper supporter 110, and the plurality of elastic members 100 can be assembled in the longitudinal direction.

In one embodiment, the peaks 131 and valleys 132 of the elastic member 100 may increase in size along the length direction. For example, peaks 131 and valleys 132 may increase from the closer upper support 110 is to lower support 120. The larger the diameter toward the lower support 120, whereby the elastic member 100 can be more stably disposed in the pump assembly. This is merely exemplary, and for example, the size of the peaks 131 and valleys 132 may also increase from the lower support 120 closer to the upper support 110. According to the embodiment, the elastic member 100 may be manufactured by injection molding, in which the sizes of the peaks 131 and the valleys 132 of the elastic member 100 are increased in a specific direction, and a mold for injection molding may be easily separated.

In an embodiment, at least one of the upper support 110 and the lower support 120 of the elastic member 100 may form at least one air passage for discharging air generated when the elastic member is compressed. At least one of the upper surface of the upper supporter 110 and the lower surface of the lower supporter 120 may be formed to protrude and/or be recessed in the longitudinal direction. When the above-mentioned protruding and/or recessed regions are formed in correspondence with each other, these may function as coupling protrusions and/or coupling grooves.

The shape of the elastic member 100 shown in fig. 1 is exemplary, and various shapes may be applied according to an embodiment to which the present invention is applied.

Fig. 2 shows an elastic member according to an embodiment of the present invention.

Specifically, (a) of fig. 2 is a perspective view of the elastic member 200, and (b) of fig. 2 is a front view of the elastic member 200, which includes an enlarged front view of the elastic member 200.

The elastic member 200 of fig. 2 is explained as the elastic member 200 of fig. 1, and the explanation thereof will be omitted.

The first connection portion 230-1 and the second connection portion 230-2 of the connection portion 230 of the elastic member 200 may be correspondingly formed to be able to face in opposite directions, and the corresponding valleys 232 of the first connection portion 230-1 and the second connection portion 230-2 may be connected to be integrally formed. Thus, the first connection part 230-1 and the second connection part 230-2 of the elastic member 200 can be uniformly compressed. This is merely exemplary, and one or more than three connection portions 230 may be formed at the elastic member 200 according to an embodiment.

In one embodiment, the peak 231 of the connection portion 230 may form an outermost first inflection point 240-1, and a second inflection point 240-2 and a third inflection point 240-3 may be formed in the up-down direction of the inner side of the first inflection point 240-1. In the case of pressing the elastic member 200, when the elastic member 200 is compressed, bending deformation can be achieved centering on the first inflection point 240-1 to the third inflection point 240-3. The bending-based load may be distributed into a plurality of inflection points 240-1, 240-2, 240-3.

In an embodiment, at least one valley among the valleys 232 of the elastic member 200 may form a restriction portion protruding toward other valleys 232 adjacent in a length direction. When the elastic member 200 is compressed, the restricting portion contacts the adjacent valley 232 or the restricting portion of the adjacent valley 232, and the compression distance of the elastic member 200 can be restricted. To prevent performance degradation due to excessive compression.

Figure 3a shows a perspective view and figure 3b shows a cross-sectional view of a pump assembly according to an embodiment of the present invention.

The pump assembly 300 of fig. 3a and 3b is shown to include the elastomeric member 100 of fig. 1, but this is for simplicity of illustration, and the elastomeric member 200 of fig. 2 or other embodiments of the present invention are also provided in the pump assembly 300.

Referring to fig. 3a and 3b, the pump assembly 300 receives an external force applied by a user, and internally causes a pressure change, thereby flowing and discharging contents, and specifically, may include a cylinder 310, a sealing cap 320, a sealing part 330, a piston rod 340, a stem 350, and an elastic member 100.

The cylinder 310 may provide a space penetrating up and down and flowing in and out of the contents. The cylinder 310 is located inside the mouth of the container (not shown), and has a mounting wing formed on the outside thereof to be mounted on the mouth of the container. The lower end of the cylinder 310 may be formed to extend toward the inside of the container, and may form an inlet communicating with the container. There may be an inlet or a valve adjacent to the inlet. The valve is a valve for preventing reverse flow, and the inlet may be sealed when the internal pressure of the cylinder 310 is positive pressure, and opened when the internal pressure of the cylinder 310 is changed to negative pressure.

The sealing cap 320 is used to open and close the piston rod 340, and has an outer surface closely contacting the cylinder 310 and an inner surface closely contacting the piston rod 340. The lower end of the inner surface of the seal cap 320 is closely attached to the base portion of the piston rod 340 to seal the inflow port of the piston rod 340, and when the piston rod 340 is lowered by the seal cap 320, the lower end of the seal cap 320 is away from the base portion of the piston rod 340 to open the inflow port and communicate with the inside of the cylinder 310.

The sealing part 330 may be coupled at an upper end of the cylinder 310 with a lower end extending toward an inside of the cylinder 310. Specifically, the sealing part 330 may include: a side wall connected to the cylinder 310; and a base portion formed inward from the lower end of the side wall. The rising of the sealing cover 320 can be suppressed according to the bottom surface of the base portion (or the protrusion formed on the bottom surface of the base portion). The lower end of the elastic member 100 can be supported on the upper surface of the base portion, and the side wall can prevent the elastic member 100 from being separated from the outside. According to an embodiment, the lower end of the elastic member 100 may be closely disposed on the sidewall.

In an embodiment, at least one lower lead may be formed on the upper side of the base portion. The lower leads are in contact with the lower end of the elastic member 100, and an air passage may be formed between the lower leads. When the elastic member 100 is implemented as a bellows type, the compression and expansion of the internal air generated when the elastic member 100 is compressed and decompressed can be released through the air passage.

The piston rod 340 is disposed inside the cylinder 310, and has a lower side surrounded by the sealing cap 320 and an upper side connectable to the handle 350. The piston rod 340 has a hollow tube shape, an inlet port opened and closed by the sealing cap 320 is formed at the lower side of the piston rod 340, and an outlet port through which the contents flowed in through the inlet port are discharged is formed at the upper side of the piston rod 340. A base portion is formed at the lower end of the piston rod 340, and when the lower end of the inner surface of the seal cap 320 is closely attached to the base portion, the inflow port can be sealed from the inner space of the cylinder 310. The piston rod 340 is movable in a vertical direction within the cylinder 310 according to the handle 350. When the piston rod 340 moves downward, the lower end of the inner surface of the sealing cap 320 is spaced from the base portion to open the inflow port, so that the contents in the cylinder 310 can flow into the piston rod 340. If the piston rod 340 continues to move, the contents are discharged through the discharge port, and then discharged through the discharge hole of the nozzle via the handle 350. When the piston rod 340 moves upward, the air cylinder 310 can seal the inlet port of the piston rod 340, and a negative pressure is generated inside the air cylinder 310, so that the content in the container portion can flow into the air cylinder 310.

The handle 350 is coupled to the piston rod 340 and is liftable together with the piston rod 340. Specifically, when an external force is applied to the lever 350 through, for example, a nozzle, the lever lowers, and the piston rod 340 is lowered accordingly, and when the external force is removed, the piston rod 340 can be raised. A wing portion protruding outward may be formed along the circumference at the upper end of the handle 350. The upper end of the elastic member 100 may be supported according to the bottom surface of the wing portion. The length of the housing space of the elastic member 100 can be defined by the length from the bottom surface of the wing portion to the upper surface of the base portion of the seal portion 330.

In one embodiment, a lower bend may be formed at the outer side of the wing portion. The detachment of the elastic member 100 can be prevented according to the lower bent portion.

In one embodiment, at least one upper pin may be formed on the bottom surface of the wing portion. The upper leads are connected to the upper end of the elastic member 100, and an air passage may be formed between the upper leads. When the elastic member 100 is implemented as a bellows type, the compression of the elastic member 100 and the compression and expansion of the internal air generated when the compression is released can be released according to the air passage.

The elastic member 100 is used to restore the position of the piston rod 340, the lower supporter 120 is supported by the seal portion 330 (e.g., the upper surface of the base portion), and the upper supporter 110 is supported by the stem 350. The stem 350 has a lower end coupled to the piston rod 340 and is formed to penetrate vertically, so that the content flowing from the piston rod 340 can move upward. When the user pressurizes the pump assembly 300, the upper supporter 110 and the handle 350 move downward and compress the connection part 130. At this time, the piston rod 340 coupled to the handle 350 may be moved downward together with the handle. When the user releases the pressure, the elastic force of the connection portion 130 can restore the upper support 110 and the handle 350 to the upper side. At this time, the piston rod 340 coupled to the shank 350 may move to the upper side together with the shank.

In one embodiment, the length from the bottom surface of the wing portion to the top surface of the base portion of the sealing portion 330 may be shorter than the length of the elastic member 100. That is, the elastic member 100 is compressed to a length shorter than the length in the steady state, and can be accommodated in the pump assembly 300.

Fig. 4 shows a cross-sectional view of a content container according to an embodiment of the present invention.

Referring to fig. 4, the content container 400 may include a container portion 410, a head portion 420, a nozzle 430, and a pump assembly 300.

The container portion 410 may provide a receiving space to receive contents. The contents stored in the container portion 410 can be discharged to the outside through the nozzle 430 and the like and used by a user. The content may be, for example, Cosmetics (i.e., Cosmetics) or medicines, but is not limited thereto, and may include a plurality of kinds or components of substances contained in the container portion 410 and discharged through the nozzle 430. The content may be in various forms such as liquid, gel, and powder. Also, although the container part 410 is illustrated in a bottle type, this is exemplary, and various types of container parts 410 such as a tube (tube), a tottle, and the like are applicable.

At the upper end of the container portion 410, a pump assembly 300 (e.g., a wing portion of the cylinder 310) may be seated. According to the pump assembly 300, the contents contained in the container portion 410 can be discharged to the outside. The head 420 is coupled to the outside of the mouth of the container portion 410. The head part 420 may have a space having the pump assembly 300 inside and/or outside, and may provide a space in which a portion of the nozzle 430 is movable, and may be fixed by pressurizing the pump assembly 300 by the combination of the head part 420 and the container part 410.

The nozzle 430 receives an external force applied by a user and is transferred to the pump assembly 300, and can discharge the contents discharged from the pump assembly 300 to the outside. The nozzle 430 receives an external force from a user from an upper side, and is movable up and down, and a lower side may be connected with the piston rod 340. The raising and lowering of the nozzle 430 may cause the raising and lowering of the piston rod 340.

As described above, although the embodiments have been described with reference to the limited embodiments and the accompanying drawings, various modifications and variations can be made by those skilled in the art from the foregoing description. Also, the respective embodiments may be combined with each other and used as necessary. Accordingly, equivalents to other examples, embodiments, and claims also fall within the scope of the claims.