Cosmetic container and pump device for cosmetic container

Abstract

The utility model discloses a cosmetic container and a pump device of the cosmetic container. The cosmetic container comprises a container main body, a pump device and a discharge head, the pump device includes a housing, a pump member, a nozzle member, and an air introduction portion including a circulation hole formed through a lower portion of the working chamber and communicating with the opening; a groove formed along the step portion and communicating with the flow hole to introduce outside air; and a sealing portion integrally formed with a lower end support portion of the pump member, extending outward and elastically and closely contacting the inner walls of the working chamber of the housing, positioned above the bottom of the working chamber, movable up and down, and elastically deformed by an external force pressed by the discharge head to form a gap between the inner walls of the working chamber so as to open the groove. By improving the inside and outside air leading-in structure of the container, the effects of being easy to manufacture, improving the durability, still stably keeping the sealing performance in long-time repeated use and preventing cosmetics from leaking are achieved.

Description

[Technical Field]

[0001] This utility model relates to cosmetic tools, especially cosmetic containers and pumping devices for cosmetic containers. [Background Technology]

[0002] For example, liquid cosmetics are typically packaged in containers, from which a certain amount of contents is dispensed for use. Liquid cosmetic containers usually consist of a main body that holds the contents and a pump device for dispensing the contents to the outside. The pump device is activated by the user's external pressure, pumping the contents out through the container's outlet.

[0003] The pump device in cosmetic containers has a complex structure, many parts, and a complicated assembly process, which increases the manufacturing cost of cosmetic containers.

[0004] Furthermore, unlike cosmetic containers that are completely sealed inside and do not allow outside air to enter, some cosmetic containers need to allow air to enter during use, thus requiring a more complex pump device structure to selectively introduce outside air.

[0005] Therefore, the applicant has developed a cosmetic container that can stably introduce external air and has a simpler structure. Korean Patent Registration No. 10-2282327, which was developed and patented by the applicant, discloses a structure that selectively introduces external air through a slit formed by an elastically deformable skirt.

[0006] However, the existing structure described above requires the simultaneous injection molding of a complex skirt structure when manufacturing pump components, which leads to manufacturing difficulties and a high defect rate.

[0007] In addition, the existing structure has a thin skirt for elastic deformation, which makes the skirt easy to be damaged or permanently deformed during repeated deformation, and it cannot fit tightly with the cylinder chamber, resulting in leakage of contents. [Utility Model Content]

[0008] The purpose of this invention is to provide an easy-to-manufacture cosmetic container and a pump device for cosmetic containers by improving the air introduction structure inside and outside the container.

[0009] Another objective of this invention is to provide a cosmetic container and a pump device for the cosmetic container that improves durability, maintains a stable seal during long-term repeated use, and prevents cosmetic leakage.

[0010] The technical solution of this utility model is as follows: The cosmetic container includes: a container body that contains contents; a pump device that is connected to the upper opening of the container body and discharges the contents of the container body through its own elastic pumping action; and a discharge head that is connected to the pump device, applies discharge pressure to the pump device, and has a contents outlet connected to the pump device at the front end.

[0011] The cosmetic container may also include an inlet tube connected to the pump device and extending to the bottom of the container body for introducing the contents into the pump device.

[0012] The pump device includes: a housing tightly installed at the upper opening, with a central hole communicating with the opening, and a discharge head slidably installed at the upper opening of the housing; a pump component installed in the working chamber of the housing, forming a content-containing space, and unidirectionally conveying the content through its own axial elastic compression or expansion; a nozzle component whose upper end is connected to the discharge head, whose lower end is connected to the upper end of the pump component, forming a content movement channel, and which operates to compress the pump component according to the discharge head and selectively open or close the internal channel and the internal space of the pump component; and an air introduction part that selectively opens or closes the gap between the pump component and the housing to introduce external air into the container body.

[0013] The pump component includes: a stepped portion recessed around the hole at the bottom of the working chamber of the housing, with a lower support portion communicating with the hole in the housing; a pressure portion integrally formed with the lower support portion, having a space communicating with the lower support portion, and changing the pressure of the internal space by external compression and elastic recovery; a mounting portion integrally formed with the upper end of the pressure portion and combined with a nozzle component or discharge head; a tight contact portion formed on the lower inner wall of the mounting portion with an upper inner diameter smaller than the lower inner diameter, which tightly contacts the nozzle component to block the connection between the pressure portion and the internal channel of the nozzle component; a telescopic portion provided between the mounting portion and the tight contact portion, which selectively opens or closes the connection between the tight contact portion and the nozzle component by external compression and elastic recovery; and a check valve integrally formed on the inner side of the lower support portion, which selectively opens or closes an orifice to unidirectionally introduce contents into the pressure portion from the orifice.

[0014] The pump components may be made of silicone, rubber, or synthetic resin materials.

[0015] The elastic coefficient of the telescopic part can be relatively greater than that of the pressure part, so that the pressure part deforms first under the action of external force.

[0016] The nozzle component includes: a connecting part that is coupled to the discharge head; a nozzle body integrally formed with the connecting part, extending into the pump component, and having a channel at the center communicating with the outlet of the discharge head; a side hole on the side of the nozzle body communicating with the channel and the interior of the telescopic part of the pump component; and a valve seat integrally formed at the lower end of the nozzle body, closing the front end of the channel and in close contact with the tight contact part of the pump component to block the pressure part from the telescopic part.

[0017] The nozzle body can be recessed inward along the outer wall at a position corresponding to the telescopic part, forming a space separated from the inner wall of the telescopic part.

[0018] The air introduction section includes: a flow hole formed through the lower part of the working chamber and communicating with the opening; a groove formed along the step and communicating with the flow hole to introduce external air; and a sealing part integrally formed with the lower end support of the pump component, extending outward and elastically and tightly contacting the inner wall of the working chamber, located above the bottom of the working chamber, movable up and down, and elastically deformed by the external force of the discharge head to form a gap between the inner walls of the working chamber, thereby opening the groove.

[0019] The groove may extend further from the stepped portion along the bottom and inner side of the chamber.

[0020] The sealing part can be positioned above the upper end of the groove when the discharge head is not in contact, so as to close the groove.

[0021] The air intake portion may further include at least one protrusion formed along one side of the upper end of the seal, protruding upward and contacting the lower end of a rib formed on the discharge head or nozzle component to deform only the seal portion, thereby lifting and deforming the seal portion to form a gap between the inner walls of the working chamber.

[0022] The protrusions can be arranged at 180-degree intervals along the circumferential direction at the upper end of the sealing part.

[0023] The air intake portion may further include at least one extension formed along one side of the lower end of the exhaust head or the lower end of the nozzle component, which protrudes downward to compress only the sealing portion, thereby causing the sealing portion to be lifted and deformed to form a gap between the inner walls of the working chamber.

[0024] The extensions may be arranged at 180-degree intervals along the circumferential direction at the lower end of the discharge head or rib.

[0025] The advantages of this utility model are as follows: 1. In this utility model, the shape and structure of the pump component are not as complex as those of a traditional skirt, simplifying the injection molding of the pump component, reducing the defect rate, and improving the cost competitiveness of the product. 2. By simplifying the external air introduction structure, operational failures can be minimized, ensuring the introduction and blocking of external air. 3. By utilizing the elastic recovery force of the pump component material to achieve sealing, the sealing performance can be stably maintained even during long-term repeated use, extending the service life and preventing cosmetics from leaking from the container during use. 4. By minimizing the vertical movement of the sealing part in a state of tight contact with the inner wall of the housing, the discharge head can be pressed with less force, making it easier to pump out the contents. 5. Furthermore, by only partially deforming the sealing part to form a gap between the inner walls of the housing, the sealing part can more smoothly return to its original state, stably maintaining a sealed state. [Attached Image Description]

[0026] Figure 1 This is a schematic cross-sectional view of a cosmetic container according to an embodiment of the present invention.

[0027] Figures 2 to 5 This is a schematic diagram of the components of a cosmetic container according to an embodiment of the present invention.

[0028] Figure 6-1 , Figure 6-2 This is an illustration of the function of the cosmetic container according to an embodiment of the present invention.

[0029] Figure 7 This is a schematic perspective view of the discharge head of a cosmetic container according to another embodiment.

[0030] Figure 8 yes Figure 7 A diagram illustrating the function of the cosmetic container in this embodiment.

[0031] Figure 9 This is an illustration of the function of a cosmetic container according to another embodiment.

[0032] Among them, 100 is the container body, 110 is the opening, 120 is the container cover, 200 is the pump unit, 210 is the shell, 211 is the hole, 212 is the working chamber, 213 is the bottom, 214 is the stepped part, 215 is the insertion groove, 217 is the internal thread, 220 is the pump component, 221 is the lower end support, 222 is the pressure part, 223 is the circular rib, 224 is the mounting part, 226 is the check valve, and 228 is the tight connection. Contact part, 230 is telescopic part, 250 is nozzle component, 251 is channel I, 252 is nozzle body, 254 is connecting part, 258 is side hole, 260 is valve seat, 262 is support plate, 270 is groove, 271 is flow hole, 272 is sealing part, 274 is protrusion, 276 is extension part, 278 is rib, 300 is discharge head, 310 is channel II, 320 is outlet, 400 is inlet pipe.

Detailed Implementation Methods

[0033] The embodiments of this utility model are described in detail below. However, these embodiments are merely examples and do not limit the scope of this utility model, which is defined by the claims. The embodiments described below can be modified in various ways without departing from the concept and scope of this utility model. The same reference numerals are used wherever possible to denote the same or similar parts.

[0034] The terminology used below is for describing specific embodiments only and is not intended to limit the present invention. Unless the context clearly indicates otherwise, the singular form also includes the plural form. The word "comprising" as used in the specification means specifically specifying certain features, regions, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, components, and / or groups.

[0035] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the following embodiments are merely one preferred embodiment of the present invention, and the present invention is not limited to the following embodiments.

[0036] Figure 1 The structure of the cosmetic container according to an embodiment of the present invention is shown. Figures 2 to 5 The various components of the cosmetic container according to an embodiment of the present invention are shown.

[0037] In the following explanation, axial direction refers to the direction through the central axis, i.e. Figure 1 The y-axis direction in the text; up, upper part, above refers to, for example, Figure 1 The image shows the cosmetic container placed on the ground, above along the y-axis; below, lower part, and below refer to the opposite, below.

[0038] As shown in the figure, the cosmetic container of this utility model embodiment includes a container body 100, a pump device 200, and a discharge head 300.

[0039] The container body 100 can be a cylindrical structure with an internal space for accommodating contents. The internal space of the container body 100 can be filled with various types of cosmetics (hereinafter referred to as contents). The contents can be medicines or daily necessities other than cosmetics, such as disinfectants or detergents. The container body 100 can have various shapes.

[0040] The container body 100 has an opening 110 at its upper end. The upper opening 110 of the container body 100 is connected to a pump device 200. Therefore, the contents inside the container body 100 are discharged from the opening 110 through the pump device 200 and discharged to the outside through the discharge head 300.

[0041] The cosmetic container of this embodiment may further include a container cap 120 detachably mounted on the upper end of the container body 100. The container cap 120 is mounted on the upper end of the container body 100, covering the opening 110 and the pump device 200 mounted at the opening, to prevent the pump device 200 from malfunctioning.

[0042] The pump device 200 is detachably mounted on the upper opening 110 of the container body 100. For example, the outer wall of the upper opening 110 of the container body 100 may be provided with external threads, and the inner wall of the pump device 200 may be provided with internal threads, and they are connected by a threaded connection. The pump device 200 can be connected to the opening 110 of the container body 100 in various ways, not limited to a threaded connection.

[0043] The discharge head 300 is vertically movable and engages with the pump device 200 to apply pressure to the pump device 200 to drive it. In this embodiment, the discharge head 300 is vertically movable to drive the pump device 200. The discharge head 300 has an internal channel II 310 communicating with the pump device 200, and a front end has a content outlet 320 communicating with the channel II 310. Therefore, when the user presses the discharge head 300, the discharge head 300 applies pressure to the pump device 200 to drive it. The content discharged by the pump device 200 is discharged through the channel II 310 of the discharge head 300 from the front end outlet 320. The shape of the discharge head 300 can vary.

[0044] The cosmetic container of this utility model embodiment may further include an inlet pipe 400 connected to the pump device 200 and extending to the bottom of the container body 100 for supplying the contents to the pump device 200.

[0045] The inlet pipe 400 is a hollow tubular structure that allows the contents to flow inside. The inlet pipe 400 is connected to the pump device 200 and extends to the bottom of the container body 100. When the pump device 200 is operating, the contents are drawn into the pump device 200 through the inlet pipe 400.

[0046] The pump device 200 of this utility model embodiment is installed at the upper opening 110 of the container body 100, and transports the contents of the container body 100 to the discharge head 300 according to the operation of the discharge head 300.

[0047] The pump device 200 changes the internal pressure through its own elastic pumping action, thereby discharging the contents inside the container body 100.

[0048] The structure of the pump device 200 according to an embodiment of the present invention will be described in detail below.

[0049] The pump device 200 of this embodiment includes a housing 210, a pump component 220, and a nozzle component 250. Furthermore, the pump device 200 also includes an air introduction section that selectively opens or closes the gap between the pump component 220 and the housing 210 to introduce external air into the container body 100.

[0050] Therefore, when the pump device 200 discharges the contents of the container body 100, external air enters the container body 100 through the pump device 200. In this way, the internal pressure of the container body 100 is equal to the atmospheric pressure, maintaining the shape of the container body 100.

[0051] The housing 210 forms the outer shape of the pump device 200 and supports the various internal components so that they can operate normally.

[0052] like Figure 2 and Figure 3 As shown, the housing 210 has a hole 211 at its center, which communicates with the opening 110 to form a working chamber 212. A discharge head 300 is slidably installed at the upper opening of the working chamber 212.

[0053] The housing 210 can be detachably installed in the opening 110 via a threaded connection. For example, the lower inner wall of the housing 210 may be provided with an internal thread 217. When the internal thread 217 of the housing 210 engages with the external thread on the outer wall of the opening 110 of the container body 100, the housing 210 is engaged with the container body 100. A sealing ring may be provided between the internal thread 217 and the opening 110 of the container body 100 to maintain airtightness.

[0054] The bottom 213 of the working chamber 212 of the housing 210 is recessed around the hole 211 to form a stepped portion 214, and the stepped portion 214 is provided with a pump component 220. The stepped portion 214 is provided with an insertion groove 215 recessed around the hole 211, and the lower end of the pump component 220 is provided with a circular rib 223, which is embedded in the insertion groove 215 for tight installation.

[0055] The discharge head 300 is slidably installed up and down inside the working chamber 212. The pump component 220 is combined with the discharge head 300 and can be elastically deformed.

[0056] The pump component 220 is installed in the working chamber 212 of the housing 210, forming a content-containing space inside, and conveys the content unidirectionally through its own axial elastic compression or expansion.

[0057] The pump component 220 includes a lower support portion 221, a pressure portion 222, a mounting portion 224, a telescopic portion 230, a tight contact portion 228, a check valve 226, and a circular rib 223, all of which are integrally formed to constitute a whole. Therefore, the number of parts is reduced, and the manufacturing cost is lowered.

[0058] The pump component 220 may be made of an elastic material, such as rubber, silicone, or synthetic resin. Compression refers to the process of being pressed down from its original state and decreasing in volume under the action of an external force. Expansion refers to the process of returning from a compressed state to its original state and increasing in volume. Therefore, the pump component 220 is elastic, elastically deforming under the action of an external force and returning to its original shape after the external force is removed.

[0059] The lower support portion 221 is installed on the stepped portion 214 of the bottom 213 of the housing 210. The interior of the lower support portion 221 communicates with the hole 211 of the housing 210. A circular rib 223 is provided on the outer side of the lower end of the lower support portion 221, which is inserted into the insertion groove 215 of the housing 210.

[0060] A check valve 226 is provided inside the lower support portion 221. The check valve 226 selectively opens or closes the orifice 211, allowing the contents to be introduced unidirectionally into the pressure portion 222 through the orifice 211.

[0061] In this embodiment, the check valve 226 is in close contact with the orifice 211 when the lower support 221 is installed on the stepped portion 214, thus closing the orifice 211. The check valve 226 opens or closes according to changes in the internal pressure of the pump component 220, allowing only the contents to flow from the container body 100 to the pump component 220. When the internal pressure of the pump component 220 decreases, the check valve 226 separates from the orifice 211, opening the orifice 211, allowing the contents to enter the pump component 220 from inside the container body 100 through the orifice 211. Conversely, when the internal pressure of the pump component 220 increases, the check valve 226 is in close contact with the orifice 211, closing the orifice 211 and preventing the contents from flowing from inside the pump component 220 to the container body 100. The structure of the check valve 226 can vary, as long as it can selectively open and close the orifice 211 to allow unidirectional flow of the contents.

[0062] Therefore, the pump component 220 is mounted on the stepped portion 214 of the housing 210 via the lower support portion 221, providing stable support. The circular rib 223 at the lower end of the lower support portion 221 is inserted into the insertion groove 215 of the housing 210, improving the sealing performance.

[0063] The pressure section 222 is integrally formed with the lower support section 221, and an internal space is formed that communicates with the lower support section 221. The internal space pressure is changed by external compression and elastic recovery.

[0064] In this embodiment, the pressure unit 222 changes the internal space pressure by its own elastic compression and expansion according to the operation of the discharge head 300.

[0065] The internal space formed by the pressure section 222 is connected to the check valve 226 at the lower end. The contents introduced from the check valve 226 are stored in the internal space of the pressure section 222.

[0066] The pressure unit 222 changes the pressure by elastically deforming and compressing or expanding its internal space, thereby achieving a pumping effect.

[0067] When an external force is applied to the discharge head 300, the force acts on the pump component 220, causing the pressure section 222 to deform elastically and compress the internal space. As the pressure section 222 continues to compress, the internal space pressure increases. When the internal space pressure exceeds the internal pressure of the container body 100, the check valve 226 remains closed. As the pressure section 222 compresses, the pressurized contents are finally discharged from the discharge head 300 through the nozzle component 250.

[0068] When the external force acting on the pump component 220 is removed, the pressure section 222 expands due to its own elastic restoring force and returns to its original state. As the internal space of the pressure section 222 expands, the internal pressure becomes lower than the internal pressure of the container body 100, the check valve 226 opens, and the contents of the container body 100 re-enter the internal space of the pressure section 222 through the check valve 226.

[0069] In this embodiment, the mounting portion 224 is integrally formed with the upper end of the pressure portion 222, constituting the upper end of the pump component 220, which can be coupled to the nozzle component 250 or the discharge head 300. The mounting portion 224 supports the upper end of the pump component 220 on the discharge head 300 or the nozzle component 250. In all embodiments, the pump component 220 is elastically deformed by pressing the discharge head 300 or the nozzle component 250 according to the operation of the discharge head 300.

[0070] The following description uses the structure of mounting part 224 combined with nozzle part 250 as an example.

[0071] The nozzle component 250 is inserted into the mounting portion 224. The mounting portion 224 can be tightly installed on the nozzle component 250. The mounting portion 224 is selectively connected to the internal channel I251 of the nozzle component 250.

[0072] The nozzle component 250 is inserted and installed through the open end of the mounting portion 224.

[0073] The upper end of the mounting portion 224 is in close contact with the support plate 262 of the nozzle component 250. Therefore, when the discharge head 300 is in operation, the support plate 262 presses the mounting portion 224 at the upper end of the pump component 220, and the mounting portion 224 is in close contact with the outer wall of the nozzle component 250 and the support plate 262 to prevent leakage of contents.

[0074] The inner wall of the mounting portion 224 is provided with a tight contact portion 228. The tight contact portion 228 can form a step at the lower end of the inner wall of the mounting portion 224, with the upper inner diameter being smaller than the lower inner diameter. Therefore, the upper end of the tight contact portion 228 constitutes the inner wall of the mounting portion 224, and the inner diameter of the tight contact portion 228 is larger than the inner diameter of the inner wall of the mounting portion 224.

[0075] The tight contact portion 228 is a part of the lower inner wall of the mounting portion 224 with an upper inner diameter smaller than the lower inner diameter, which contacts the valve seat 260 of the nozzle component 250 to block the passage.

[0076] That is, the inner wall of the stepped part 228 is in close contact with the valve seat 260 of the nozzle component 250, blocking the connection between the pressure part 222 and the telescopic part 230, and forming a channel for the contents to pass through when separated from the valve seat 260.

[0077] The telescopic part 230 is located between the mounting part 224 and the tight contact part 228. Through external force compression and elastic recovery, it selectively opens or closes the connection between the tight contact part 228 and the valve seat 260 of the nozzle component 250.

[0078] When the upper end of the mounting portion 224 is supported on the support plate 262 of the nozzle component 250, the tight contact portion 228 elastically and tightly contacts the valve seat 260 of the nozzle component 250. Therefore, the tight contact portion 228 of the mounting portion 224 is in tight contact with the valve seat 260, maintaining a closed state.

[0079] The axial length of the mounting portion 224, that is, the length between the upper end of the mounting portion 224 and the stepped surface of the tight contact portion 228, can be varied by the elastic deformation of the telescopic portion 230. When the length of the mounting portion 224 changes, the connection between the tight contact portion 228 and the valve seat 260 is opened or closed.

[0080] Therefore, in this embodiment, the telescopic part 230 is integrally formed with the side of the mounting part 224, and the axial length of the mounting part 224 is changed according to the elastic deformation of the discharge head 300 during operation.

[0081] The telescopic part 230 is compressed or expanded elastically according to the operation of the discharge head 300. When the telescopic part 230 is compressed or expanded, the axial length of the mounting part 224 changes.

[0082] When the telescopic part 230 is elastically compressed by the external force of the discharge head 300, the axial length of the mounting part 224 shortens. Therefore, the tight contact part 228 moves relative to the valve seat 260 of the nozzle component 250, and the horizontal stepped surface of the tight contact part 228 separates from the valve seat 260, forming a gap. Thus, the connection between the pump component 220 and the nozzle component 250 opens, and the contents enter the nozzle component 250 through the gap.

[0083] When the external force acting on the pump component 220 is removed, the compressed telescopic part 230 returns to its original shape through its own elastic restoring force, and the axial length of the mounting part 224 is restored. Therefore, the tight contact part 228 moves relative to the valve seat 260, and the horizontal stepped surface of the tight contact part 228 comes into tight contact with the valve seat 260, blocking the discharge of contents.

[0084] In this embodiment, the elastic modulus of the telescopic portion 230 is relatively greater than that of the pressure portion 222. The pump component 220 is integrally formed from the same material, and the telescopic portion 230 and the pressure portion 222 have different shapes or cross-sectional structures, resulting in different elastic moduli. For example, the cross-sectional thickness of the telescopic portion 230 is greater than that of the pressure portion 222, causing the elastic moduli of the telescopic portion 230 and the pressure portion 222 to differ.

[0085] Therefore, when an external force is applied to the pump component 220, the pressure section 222, with a lower elastic modulus, compresses and deforms before the telescopic section 230. As the external force continues to act, the telescopic section 230, with a higher elastic modulus, compresses and deforms. The telescopic section 230 compresses and deforms, shortening its length, and the connection between the tight contact section 228 and the valve seat 260 opens. Therefore, the contents of the pressure section 222 are discharged from the nozzle component 250 through the gap between the tight contact section 228 and the valve seat 260.

[0086] Conversely, when the external force applied to the pump component 220 is removed, the telescopic portion 230, with a larger elastic coefficient, expands and returns to its original shape first through elastic restoring force. As the telescopic portion 230 returns to its original shape, its length increases, and the stepped surface of the tight contact portion 228 comes into close contact with the valve seat 260, blocking the connection. After the telescopic portion 230 returns to its original shape, the pressure portion 222 expands and returns to its original shape through elastic restoring force. When the pressure portion 222 expands and deforms, a negative pressure is formed inside. The tight contact portion 228 remains in close contact with the valve seat 260, maintaining a closed state, and the contents of the container body 100 enter the pressure portion 222 through the check valve 226.

[0087] Therefore, the pressure unit 222 and the telescopic unit 230 work in sequence to ensure the smooth pumping of the contents.

[0088] The nozzle component 250 includes a connecting portion 254 that is coupled to the discharge head 300, a nozzle body 252 that is integrally formed with the connecting portion 254 and extends into the pump component 220, and has a channel I251 at its center that communicates with the outlet of the discharge head 300, a side hole 258 on the side of the nozzle body 252 that communicates with the channel I251 and the interior of the telescopic portion 230 of the pump component 220, and a valve seat 260 that is integrally formed at the lower end of the nozzle body 252 and closes the front end of the channel I251 and is in close contact with the tight contact portion 228 of the pump component 220 to block the valve seat 260 between the pressure portion 222 and the telescopic portion 230.

[0089] The outer wall of the connecting part 254 is provided with a support plate 262. The support plate 262 protrudes outward and supports the upper end of the mounting part 224 of the pump component 220.

[0090] Therefore, the nozzle component 250 is combined with the mounting portion 224 at the upper end of the pump component 220, connecting the pump component 220 and the discharge head 300. The nozzle component 250 has an internal channel I251, serving as a passage for the contents. The channel I251 communicates with the outlet 320 through the interior of the discharge head 300. The nozzle component 250 compresses the pump component 220 according to the operation of the discharge head 300, and selectively opens or closes the channel between the tight contact portion 228 of the telescopic portion 230 and the nozzle component 250.

[0091] When the nozzle body 252 of the nozzle component 250 is engaged with the mounting portion 224 of the pump component 220, the upper end of the pump component 220 is supported on the support plate 262 on the outer wall of the connecting portion 254. Therefore, the lower end of the pump component 220 is supported on the stepped portion 214 of the housing 210, and the upper end is supported on the support plate 262 of the nozzle component 250.

[0092] The nozzle body 252 can be recessed inward along its outer wall at a position corresponding to the telescopic part 230, forming a space spaced apart from the inner wall of the telescopic part 230. Therefore, the nozzle body 252 does not contact the inner wall of the telescopic part 230 of the pump component 220, avoiding mutual interference, ensuring smooth elastic deformation of the telescopic part 230, and allowing the contents to flow smoothly between the mounting part 224 and the nozzle body 252.

[0093] The recessed side of the nozzle body 252 may be provided with a side hole 258. At least one side hole 258 may be provided at intervals along the outer wall of the nozzle body 252. Therefore, the contents flow from between the mounting part 224 and the nozzle body 252 into the internal channel I251 of the nozzle body 252 through the side hole 258.

[0094] A valve seat 260 is provided at the lower end of the nozzle body 252. The valve seat 260 is in close contact with the stepped surface of the tight contact portion 228, blocking the connection between the internal channel I251 of the nozzle body 252 and the telescopic portion 230 and the pressure portion 222.

[0095] When the discharge head 300 is operated, the telescopic part 230 is compressed and deformed, and its axial length is shortened. As a result, the valve seat 260 of the nozzle component 250 separates from the tight contact part 228, forming a gap. Therefore, the contents inside the pressure part 222 of the pump component 220 are discharged through the gap from the channel I251 of the nozzle component 250.

[0096] On the other hand, the air inlet section selectively opens or closes the gap between the pump component 220 and the housing 210 to introduce external air into the container body 100.

[0097] The air introduction portion of this embodiment includes: a flow hole 271 formed through the lower part of the working chamber 212 of the housing 210 and communicating with the opening 110; a groove 270 continuously formed along the step portion 214 and communicating with the flow hole 271 to introduce external air; and a sealing portion 272 integrally formed with the lower end support portion 221 of the pump component 220 and selectively opening or closing the groove 270.

[0098] The sealing part 272 is formed along the outer wall of the lower support part 221, extends outward and elastically and tightly contacts the inner wall of the working chamber 212 of the housing 210, and can slide along the working chamber 212. The groove 270 is opened by pressing the lower end of the discharge head 300 to elastically deform.

[0099] In this embodiment, the sealing part 272 is located above the bottom 213 of the working chamber 212 and can move up and down without interfering with the bottom 213.

[0100] Therefore, when the discharge head 300 is not pressed, the sealing part 272 is located above the bottom 213, in close contact with the inner wall of the chamber 212, closing the groove 270.

[0101] When the sealing part 272 is pressed and elastically deformed by the lower end of the discharge head 300, a gap is formed between it and the working chamber 212. The sealing part 272 is located above the bottom 213, does not interfere with the bottom 213, can move up and down, and is elastically deformed downward by the lower end of the discharge head 300.

[0102] When the sealing part 272 elastically deforms, a gap is formed between it and the working chamber 212, and the groove 270 communicates with the outside. The flow hole 271 communicates with the bottom 213 of the working chamber 212 through the groove 270. Therefore, the interior of the container body 100 communicates with the outside through the gap between the sealing part 272 and the working chamber 212, the space between the bottom 213 and the sealing part 272, the groove 270 of the stepped part 214, and the flow hole 271. Thus, external air enters the interior of the container body 100 through the groove 270 and the flow hole 271.

[0103] Therefore, the sealing part 272 opens or closes the groove 270 through its own elastic deformation. When the sealing part 272 opens the groove 270, external air enters the interior of the container body 100, filling the space formed after the contents are discharged. Therefore, the internal pressure of the container body 100 is equal to the atmospheric pressure, maintaining the shape of the container body 100.

[0104] In this embodiment, multiple grooves 270 are spaced apart along the circumferential direction, and each groove 270 can extend axially. This embodiment has four grooves 270 arranged at 90-degree intervals to ensure smooth air introduction.

[0105] When the pump component 220 is combined with the housing 210, the lower support 221 is in close contact with the stepped portion 214, and the circular rib 223 is inserted into the insertion groove 215 for tight installation.

[0106] The groove 270 is a recessed part formed on the inner wall of the housing 210, forming a gap between the lower support 221 that is tightly inserted into the insertion groove 215, and a gap is also formed between the circular rib 223 and the insertion groove 215.

[0107] Therefore, the groove 270 forms a gap between the pump component 220 and the housing 210, serving as a channel for air introduction.

[0108] The flow hole 271 is a hole formed through the bottom of the insertion groove 215, and is connected to the interior of the container body 100 through the opening 110.

[0109] The groove 270 extends along the inner side of the stepped portion 214 and the insertion groove 215, and finally connects with the flow hole 271 at the bottom of the insertion groove 215. Therefore, the flow hole 271 and the groove 270 enable communication between the interior of the container body 100 and the interior of the working chamber 212 of the shell 210.

[0110] In the air intake section of this embodiment, the sealing part 272 is located above the bottom 213 of the working chamber 212, forming a gap between it and the inner wall of the working chamber 212, allowing the groove 270 to communicate with the outside. Therefore, even if the groove 270 is only formed in the step portion 214 or the insertion groove 215, external air can be smoothly introduced through the elastically deformable sealing part 272.

[0111] In another embodiment, the groove 270 may extend further from the step portion 214 along the bottom 213 and inner side of the working chamber 212.

[0112] That is, the groove 270 is continuously formed from the lower part of the inner wall of the working chamber 212 along the bottom 213, the step portion 214 and the insertion groove 215.

[0113] In this structure, the sealing part 272 is located above the upper end of the groove 270 when the discharge head 300 is not in contact, thus closing the groove 270.

[0114] Therefore, when the discharge head 300 is not pressed, the sealing part 272 is located above the groove 270, in close contact with the inner wall of the working chamber 212, closing the groove 270.

[0115] When the sealing part 272 is pressed and elastically deformed by the lower end of the discharge head 300, a gap is formed between it and the working chamber 212, and the groove 270 is connected to the outside through the gap.

[0116] Therefore, the groove 270 extends from the step portion 214 along the bottom 213 and inner side of the working chamber 212 to ensure smooth airflow.

[0117] The sealing part 272 is in close contact with the inner wall of the chamber 212, selectively opening or closing the channel formed by the groove 270. The elastically deformable sealing part 272 forms a gap between the chambers 212, ensuring the smooth introduction of external air.

[0118] In this embodiment, the sealing portion 272 is continuously formed along the outer wall of the lower support portion 221. The sealing portion 272 is a circular plate and is tightly installed on the inner wall of the working chamber 212.

[0119] The sealing part 272 is made of the same material as the pump component 220 and is integrally formed, possessing its own elastic restoring force. Therefore, after elastic deformation, it returns to its original shape through its own elastic restoring force, re-engaging tightly with the inner wall of the working chamber 212 and closing the groove 270.

[0120] The sealing part 272 is in close contact with the inner wall of the working chamber 212 of the housing 210, closing the groove 270. When the groove 272 is closed, it prevents the contents of the container body 100 from leaking through the groove 270 between the sealing part 272 and the inner wall of the working chamber 212.

[0121] Furthermore, when the outer wall of the sealing part 272 is pressed and elastically deformed, a gap is formed between it and the inner wall of the working chamber 212 of the housing 210, and the groove 270 communicates with the outside through the gap. Therefore, external air enters the groove 270 through the gap between the sealing part 272 and the working chamber 212, and enters the interior of the container body 100 along the groove 270.

[0122] Therefore, in this embodiment, the sealing part 272 is formed on the lower end support part 221 of the pump component 220 to ensure that the sealing part 272 always stably contacts the inner wall of the working chamber 212 during the elastic deformation of the pump component 220.

[0123] That is, the lower support 221 is fixed on the step 214, and the up and down movement of the discharge head 300 only causes the upper end of the pump component 220 to elastically deform. The sealing part 272 on the lower support 221 is always in close contact with the inner wall of the working chamber 212 during the pumping process.

[0124] Furthermore, the elastic recovery of the pump component 220 is not affected by the contact force between the seal 272 and the inner wall of the working chamber 212, ensuring that the pump component 220 smoothly returns to its original state through its own elasticity.

[0125] Therefore, the sealing part 272 stably closes the groove 270, and the pump component 220 can work normally for a long time even if the sealing part 272 is in close contact with the inner wall of the working chamber 212.

[0126] The air intake portion of this embodiment also includes at least one protrusion 274 formed on one side of the upper end of the sealing portion 272, protruding upward and contacting the lower end of the discharge head 300 to press the sealing portion 272.

[0127] The protrusion 274 causes only part of the sealing part 272 to deform, forming a gap between the working chambers 212.

[0128] The protrusion 274 can press the sealing part 272 to elastically deform under the maximum pressing state of the discharge head 300.

[0129] Therefore, in this embodiment, the pump device opens the groove 270 by elastic deformation of the sealing part 272 when the discharge head 300 is under maximum pressure.

[0130] Therefore, during the process of pumping the contents by pressing the discharge head 300, the sealing part 272 does not apply additional elastic force.

[0131] That is, there is a sufficient gap between the lower end of the discharge head 300 and the protrusion 274, so that the discharge head 300 will not come into contact with the protrusion 274 when the contents are pumped by pressing the discharge head 300. Therefore, the discharge head 300 is only subjected to the elastic restoring force of the pump component 220, and the user only needs to apply force to press the pump component 220 to operate the discharge head 300.

[0132] When the discharge head 300 continues to press against the contact protrusion 274, the sealing part 272 elastically deforms, applying additional deformation force. Therefore, the user can easily operate the pump component 220 by pressing the discharge head 300 with less force.

[0133] Furthermore, by providing a protrusion 274 on the sealing part 272, only the sealing part 272 is deformed, effectively forming a gap between the working chambers 212. When the discharge head 300 is pressed down, the protrusion 274 contacts the lower end of the discharge head 300 first, and the sealing part 272 only elastically deforms at the position of the protrusion 274.

[0134] Therefore, as Figure 6-1 , Figure 6-2 As shown, the sealing part 272 changes from a circular state to a non-circular state with a recessed position at the protrusion 274. Therefore, the sealing part 272 is entirely circular in contact with the inner wall of the working chamber 212, and part of it is recessed to form a non-circular shape, creating a gap between it and the circular working chamber 212.

[0135] Therefore, by deforming only part of the sealing part 272 through the protrusion 274, even slight deformation can create a gap between the working chambers 212.

[0136] Therefore, even if the discharge head 300 slightly presses the protrusion 274, the sealing part 272 will become non-circular, forming a gap between it and the circular working chamber 212.

[0137] Furthermore, the protrusion 274 causes partial elastic deformation of the sealing portion 272, allowing the sealing portion 272 to more smoothly return to its original shape.

[0138] Therefore, when the discharge head 300 rises to remove the pressure, the sealing part 272 can stably return to its original shape and make tight contact with the inner wall of the working chamber 212. Therefore, even with prolonged use, the groove 270 can be stably closed.

[0139] In this embodiment, the protrusions 274 are arranged at 180-degree intervals along the circumferential direction at the upper end of the sealing portion 272.

[0140] Therefore, the sealing part 272 deforms at 180-degree relative positions to stably form the gap between the working chambers 212, while ensuring that the sealing part 272 stably returns to its original state, opening or closing the groove 270.

[0141] on the other hand, Figure 7 The structure of the air inlet section of a pump device according to another embodiment is shown.

[0142] The air intake portion in this embodiment is the same as that in the above embodiment, except that an extension is used instead of a protrusion. Therefore, the same reference numerals are used for the same parts, and detailed descriptions are omitted.

[0143] like Figure 7 As shown, the air intake portion of this embodiment includes at least one extension 276 formed on one side of the lower end of the exhaust head 300 and protruding downward to press the sealing portion 272.

[0144] By extending the extension 276, only the sealing part 272 is deformed, forming a gap between the working chambers 212.

[0145] The extensions 276 may be arranged at 180-degree intervals along the circumferential direction at the lower end of the discharge head 300.

[0146] The extension 276 can press the sealing part 272 to elastically deform under the maximum pressing state of the discharge head 300.

[0147] Therefore, in this embodiment, the pump device opens the groove 270 by elastic deformation of the sealing part 272 when the discharge head 300 is under maximum pressure.

[0148] By providing an extension 276 on one side of the lower end of the discharge head 300, the sealing part 272 is deformed only partially, effectively forming a gap between the working chambers 212. When the discharge head 300 is pressed down, the extension 276 contacts the sealing part 272 first, and the sealing part 272 is elastically deformed only at the location of the extension 276.

[0149] Therefore, as Figure 8 As shown, the sealing portion 272 changes from a circular state to a non-circular state with a recessed position at the extension portion 276. Therefore, the sealing portion 272 is entirely circular in contact with the inner wall of the working chamber 212, and part of it is recessed to form a non-circular shape, creating a gap between it and the circular working chamber 212.

[0150] Therefore, by deforming only part of the sealing part 272 through the extension 276, even slight deformation can create a gap between the working chambers 212.

[0151] Therefore, even if the extension 276 of the discharge head 300 slightly presses the sealing part 272, the sealing part 272 will become non-circular, forming a gap between it and the circular chamber 212.

[0152] When the discharge head 300 is removed by pressing, the sealing part 272 returns to its original shape through its own elastic restoring force and makes tight contact with the inner wall of the working chamber 212.

[0153] In this embodiment, the extensions 276 are arranged at 180-degree intervals along the circumferential direction at the lower end of the discharge head 300.

[0154] Therefore, the sealing part 272, pressed by the extension 276, deforms at 180-degree relative positions to stably form a gap between the working chambers 212, while ensuring that the sealing part 272 stably returns to its original state, opening or closing the groove 270.

[0155] Figure 9 The structure of the air inlet section of a pump device according to another embodiment is shown.

[0156] The air introduction section in this embodiment is the same as that in the above embodiment, except that the sealing part 272 is elastically deformed by ribs on the nozzle component. Therefore, the same reference numerals are used for the same parts, and detailed descriptions are omitted.

[0157] like Figure 9 As shown, the air introduction portion of this embodiment includes a rib 278 formed on the nozzle component 250 and extending downward along the outside of the pump component 220, and at least one protrusion 274 formed on one side of the upper end of the sealing portion 272, protruding upward and contacting the lower end of the rib 278 to press the sealing portion 272.

[0158] The protrusion 274 causes only part of the sealing part 272 to deform, forming a gap between the working chambers 212.

[0159] The rib 278 is integrally formed with the support plate 262 at the upper end of the nozzle component 250 and extends downward along the inner wall of the discharge head 300.

[0160] The nozzle component 250 is coupled to the discharge head 300 and moves up and down with the discharge head 300. Therefore, when the discharge head 300 is operated, the rib 278 on the nozzle component 250 moves with the discharge head 300, and the lower end of the rib 278 presses against the protrusion 274 at the upper end of the sealing part 272, causing the sealing part 272 to deform.

[0161] The protrusion 274 can be elastically deformed by the lower end of the rib 278 when the discharge head 300 is pressed at its maximum pressure. Therefore, there is a sufficient gap between the lower end of the rib 278 and the protrusion 274, so that the protrusion 274 will not come into contact with the discharge head 300 when the contents are pumped out. Therefore, the user only needs to apply force to press the pump component 220 to operate the discharge head 300.

[0162] In another embodiment, the air inlet portion of this embodiment can extend downward from one side of the lower end of the rib 278 to press the sealing portion 272.

[0163] The nozzle component 250 is coupled to the discharge head 300 and moves up and down with the discharge head 300. Therefore, when the discharge head 300 is operated, the rib 278 on the nozzle component 250 moves with the discharge head 300, and the downward protruding extension of the lower end of the rib 278 presses down on the sealing part 272, causing it to deform.

[0164] In this embodiment, the rib 278 is similar to the extension 276 formed at the lower end of the discharge head 300, and the extension is formed by protruding downward to press the sealing part 272.

[0165] Therefore, when the discharge head 300 is pressed, this structure presses the sealing part 272 through the downward protruding extension at the lower end of the rib 276, forming a gap between the working chambers 212.

[0166] As described above, exemplary embodiments of the present invention have been shown and illustrated, but various modifications and other embodiments can be made by those skilled in the art. These modifications and other embodiments are all included in the appended claims without departing from the true spirit and scope of the present invention.

Claims

1. A cosmetic container, characterized in that... It includes: a container body for containing contents; and a pump device that connects to the opening at the top of the container body and discharges the contents of the container body through its own elastic pumping action; A discharge head that is connected to a pump unit, applies discharge pressure to the pump unit, and has a contents outlet at the front end that communicates with the pump unit; The pump device includes: a housing tightly installed at the upper opening, with a central hole communicating with the opening, and a discharge head slidably installed at the upper opening of the housing; a pump component installed in the working chamber of the housing, forming a content receiving space, and unidirectionally conveying the content through its own axial elastic compression or expansion; a nozzle component whose upper end is connected to the discharge head, whose lower end is connected to the upper end of the pump component, forming a content movement channel, and which operates to compress the pump component according to the discharge head and selectively open or close the internal channel and the internal space of the pump component; and an air introduction part that selectively opens or closes the gap between the pump component and the housing to introduce external air into the container body. The air introduction section includes: a flow hole formed through the lower part of the working chamber and communicating with the opening; a groove formed along the step and communicating with the flow hole to introduce external air; and a sealing part integrally formed with the lower end support of the pump component, extending outward and elastically and tightly contacting the inner wall of the working chamber, located above the bottom of the working chamber, movable up and down, and elastically deformed by the external force of the discharge head to form a gap between the inner walls of the working chamber, thereby opening the groove.

2. The cosmetic container according to claim 1, characterized in that... The pump component includes: a stepped portion recessed around the hole at the bottom of the working chamber of the housing, with a lower support portion communicating with the hole in the housing; a pressure portion integrally formed with the lower support portion, having a space communicating with the lower support portion, and changing the pressure of the internal space by external compression and elastic recovery; a mounting portion integrally formed with the upper end of the pressure portion and combined with a nozzle component or discharge head; a tight contact portion formed on the lower inner wall of the mounting portion with an upper inner diameter smaller than the lower inner diameter, which tightly contacts the nozzle component to block the connection between the pressure portion and the internal channel of the nozzle component; a telescopic portion provided between the mounting portion and the tight contact portion, which selectively opens or closes the connection between the tight contact portion and the nozzle component by external compression and elastic recovery; and a check valve integrally formed on the inner side of the lower support portion, which selectively opens or closes an orifice to unidirectionally introduce contents into the pressure portion from the orifice.

3. The cosmetic container according to claim 1 or 2, characterized in that... The groove extends from the stepped portion along the bottom and inner side of the working chamber. When the discharge head is not in contact, the sealing portion is located above the upper end of the groove, closing the groove.

4. The cosmetic container according to claim 3, characterized in that... The air intake portion further includes at least one protrusion formed along one side of the upper end of the seal, protruding upward and contacting the lower end of a rib formed on the discharge head or nozzle component to deform only the seal portion, thereby lifting and deforming the seal portion to form a gap between the inner walls of the working chamber.

5. The cosmetic container according to claim 3, characterized in that... The air intake portion further includes at least one extension formed along one side at the lower end of the exhaust head or the lower end of the nozzle component, which protrudes downward to compress only the sealing portion, thereby causing the sealing portion to be lifted and deformed to form a gap between the inner walls of the working chamber.

6. A pump device for a cosmetic container, characterized in that... include: A container body for containing contents; a pump device that connects to the opening at the top of the container body and discharges the contents of the container body through its own elastic pumping action; A discharge head that is connected to a pump unit, applies discharge pressure to the pump unit, and has a contents outlet at the front end that communicates with the pump unit; The pump device includes: a housing tightly installed at the upper opening, with a central hole communicating with the opening, and a discharge head slidably installed at the upper opening of the housing; a pump component installed in the working chamber of the housing, forming a content receiving space, and unidirectionally conveying the content through its own axial elastic compression or expansion; a nozzle component whose upper end is connected to the discharge head, whose lower end is connected to the upper end of the pump component, forming a content movement channel, and which operates to compress the pump component according to the discharge head and selectively open or close the internal channel and the internal space of the pump component; and an air introduction part that selectively opens or closes the gap between the pump component and the housing to introduce external air into the container body. The air introduction section includes: a flow hole formed through the lower part of the working chamber and communicating with the opening; a groove formed along the step and communicating with the flow hole to introduce external air; and a sealing part integrally formed with the lower end support of the pump component, extending outward and elastically and tightly contacting the inner wall of the working chamber, located above the bottom of the working chamber, movable up and down, and elastically deformed by the external force of the discharge head to form a gap between the inner walls of the working chamber, thereby opening the groove.

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