KR102226969B1 - Pump - Google Patents

Abstract

Disclosed is a pump which can be easily recycled and can reduce the number of components. According to one aspect of the present invention, the pump comprises: a housing having an internal space and an internal cylinder positioned in the internal space; a guide having a head moveably inserted into the internal cylinder and a body for providing upward elastic force to the head; and a piston moveably inserted into a circumference of the head. The internal cylinder comprises: a through hole; an opening/closing means for opening and closing the through hole; and a housing introducing passage for enabling the introduction of contents into the internal space. A guide introduction passage is formed in the circumference of the head. The piston can open and close the guide introduction passage. The body has a plurality of cutout portions formed in a hollow column shape, thereby having elastic force.

Description

Pump{PUMP}

The present invention relates to a simple configuration and easy recycling pump.

In a cosmetic container, a shampoo container, etc., a pump is coupled to an upper inlet of a container storing liquid content such as a cosmetic solution, and functions to discharge and spray the content to the outside by a fixed amount. When the user presses the nozzle corresponding to the button downward in order to spray the liquid content, the content injected into the container is pressurized and rises along the discharge passage and is sprayed through the nozzle. In addition, when the pressure on the nozzle is released, the discharge passage is mechanically closed by the rise of the nozzle, and the pressure inside the pump decreases, so that the contents are introduced from the container to supplement it.

Cosmetic containers equipped with such a pump are used for spraying various contents such as shampoo, fragrance, pesticide, as well as perfumes and cosmetics. Particularly, since the contents can be discharged quantitatively by pressing the nozzle once, and the contents are not exposed to outside air, the use thereof is increasing because it is convenient to use.

Korean Patent Registration No. 1963619 discloses a cosmetic container having a spray pump. The cosmetic container disclosed in the prior art document is complicated in construction and difficult to manufacture because it includes a nozzle, a nozzle cap, a cap cover, a cap, a valve, a valve spring, a housing cover, a piston spring, a piston, a guide, a disk, a housing, etc. Has. In addition, the conventional cosmetic container includes a valve spring and a piston spring formed of a metal material, which makes it difficult to recycle because the material is different from other parts made of plastic. In particular, in recent years, as interest and necessity for environmental protection increases, there is an increasing demand for a cosmetic container that is easy to recycle, and the conventional cosmetic container has not been able to meet such demand.

Accordingly, the present invention has been derived to solve the above-described problems, and an object of the present invention is to provide a pump having a simple structure and easy recycling.

Other objects of the present invention will become more apparent through examples described below.

A pump according to an aspect of the present invention comprises an inner space, a housing having an inner cylinder positioned in the inner space, a head movably inserted into the inner cylinder, and a body providing an upward elastic force to the head. It includes a guide and a piston movably inserted around the head, and the inner cylinder includes a through hole, an opening/closing means for opening and closing the through hole, and a housing inlet passage for allowing contents to flow into the internal space. , A guide inflow passage is formed around the head, the piston can open and close the guide inflow passage, and the body has elasticity by forming a plurality of cutouts in the shape of a hollow column.

The pump according to the present invention may have one or more of the following embodiments. For example, the guide may be formed of a plastic material. And the cutout may have an arc shape and may be formed in a zigzag shape.

A part of the head protrudes from the upper end of the body, the guide inflow passage is formed on the upper portion of the body, and a ring-shaped upper body may be integrally formed with the head at the upper end of the body.

A receiving protrusion is formed in the lower portion of the through hole, and the opening and closing member may be a ball disk that is movably inserted inside the receiving protrusion.

The housing inflow passage may have a slot shape formed in the longitudinal direction of the inner cylinder.

A valve is coupled to the upper portion of the guide, a housing cover is coupled to the upper portion of the housing, and the housing cover closes the upper portion of the housing, and the valve can pass through the center thereof.

The cap cover is coupled to the upper portion of the housing, and the cap cover can couple the pump to the upper portion of the container.

According to the problem solving means of the present invention as described above, various effects including the following can be expected. However, the present invention is not established only when all of the following effects are exhibited.

The present invention can provide a pump having a simple structure and easy recycling.

1 is a cross-sectional view illustrating a pump according to a first embodiment of the present invention.
Figure 2 is a cross-sectional view of the housing of the pump of Figure 1;
3 and 4 are perspective and front views of the guide of the pump of FIG. 1.
5 and 6 are perspective and cross-sectional views of the valve of the pump of FIG. 1.
7 is a cross-sectional view illustrating a state in which a pump is pressurized and contents are discharged in FIG. 1.
8 is a cross-sectional view illustrating a pump according to a second embodiment of the present invention.

In the present invention, various transformations may be applied and various embodiments may be provided, and specific embodiments will be illustrated in the drawings and will be described in detail in the detailed description. However, this is not intended to limit the present invention to a specific embodiment, it should be understood to include all conversions, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, when it is determined that a detailed description of a related known technology may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

Terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same or corresponding components regardless of the reference numerals are given the same reference numerals, and duplicates thereof. Description will be omitted.

The pump according to the present invention is applied to a container for various purposes, such as a cosmetic container, a shampoo container, and a detergent container, and discharges liquid contents. Therefore, the pump according to the present invention is not limited by the type and property of the contents to be discharged, the shape of the container to be combined, the material, and the use.

1 is a cross-sectional view illustrating a pump 100 according to a first embodiment of the present invention.

Referring to Figure 1, the pump 100 according to the first embodiment is coupled to the open upper portion of the container (not shown), the contents injected into the inside of the container (not shown) to the outside by pressurization. Discharge. The pump 100 according to the first embodiment includes a housing 110, a guide 130, a piston 150, a valve 160, a housing cover 170, and a cap cover 180. The pump 100 according to the present embodiment is characterized in that the guide 130 includes a body 140 that provides an elastic force, and the body 140 is formed of a plastic material instead of a metal material. By such a guide 130, the pump 100 according to the present embodiment has the advantage of reducing the number of parts and easy recycling.

2 is a cross-sectional view illustrating the housing 110 in the pump 100 illustrated in FIG. 1.

1 to 2, the housing 110 forms the outer body of the pump 100 and has an inner space 112 into which contents (not shown) are introduced. In the inner space 112, the contents are introduced and stored by the operation of the pump 100. In addition, the piston 150, the entire body 140 of the guide 130, and a part (see FIG. 1) and all (see FIG. 7) of the head 132 are located in the inner space 112.

A housing flange 116 is formed around the upper circumference of the housing 110. The upper portion of the housing flange 116 is pressed downward by the cap cover 180 in the open upper direction of the container (not shown). In addition, an air hole 114 is formed through the lower portion of the housing flange 116. The air hole 114 serves to prevent external air from flowing into the container, thereby preventing the pressure inside the container from decreasing due to the operation of the pump.

The housing 110 has a hollow cylindrical shape having a circular cross section and an open upper portion thereof. In addition, the lower portion of the housing 110 is opened by the inner cylinder 118, and the contents flow into the inner cylinder 118 through the open lower portion of the inner cylinder 118, and then into the inner space 112. Is discharged.

In the pump 100 according to the present embodiment, the housing 110 is illustrated as having a circular cross-section, but the present invention is not limited by the cross-sectional shape of the housing. Therefore, it goes without saying that the pump according to another embodiment of the present invention may have various shapes such as an oval, a polygon including a square, and the like.

The inner cylinder 118 has a hollow cylindrical shape and is located inside the housing 110, and only the nozzle protrusion 128 corresponding to the lower end thereof protrudes to the outside of the housing 110. The inner cylinder 118 corresponds to a passage through which the contents move in the container, and the head 132 of the guide 130 is movably inserted therein. And a ball disk 124 corresponding to the opening and closing means is located inside the inner cylinder 110.

Although the pump according to the present embodiment has been illustrated to have a ball disk 124 as the opening and closing means, the present invention is not limited by the configuration of the opening and closing means. Accordingly, the pump according to another embodiment of the present invention may be provided with various opening and closing means such as a disk or a check valve disclosed in Korean Patent Registration No. 1963619.

The inner cylinder 118 has a smaller diameter than the housing 110, and a through hole 120 corresponding to the boundary is formed therein. The upper part of the through hole 120 is a space into which the head 132 is movably inserted, and the lower part corresponds to a passage through which only the contents are moved. In addition, a housing inflow passage 126 is formed in the longitudinal direction of the upper circumferential surface of the inner cylinder 118 to have a slot shape.

In the inner cylinder 118, a receiving protrusion 122 is formed in the lower portion of the through hole 120. The receiving protrusion 122 has a hollow cylindrical shape, its upper end corresponds to the through hole 120 and its lower end is open. And a ball disk 124 corresponding to the opening and closing means is located inside the receiving protrusion 122.

The ball disk 124 is inserted to be movable by a predetermined distance in the inner space of the receiving protrusion 122 and has a larger diameter than the through hole 120. In addition, a protrusion for preventing separation of the ball disk 124 is formed on the inner circumferential surface of the receiving protrusion 122. The ball disk 124 that is forcibly inserted from the lower portion of the receiving protrusion 122 serves to open and close the lower passage while moving a predetermined distance therein.

A tube (not shown) for easily sucking the contents may be coupled to the nozzle protrusion 128 corresponding to the lower end of the inner cylinder 118. Of course, the tube may be inserted around the receiving protrusion 122.

3 and 4 are perspective and front views of the guide 130 of the pump 100 of FIG. 1.

1, 3 to 4, the guide 130 is characterized in that the guide and spring of a conventional pump are combined and integrally formed by plastic injection. That is, in a conventional pump, the head 132 corresponding to the guide and the body 140 corresponding to the spring are integrally formed of plastic resin. As such, the guide 130 includes a head 132 and a body 140.

The head 132 has a hollow cylindrical shape, and both upper and lower ends thereof have an open structure. The upper part of the head 132 protrudes upward from the body 140 and the lower part is located in the inner center of the body 140. In addition, a guide inlet hole 134 and a head groove 136 are formed around a portion of the head 132 that protrudes upward from the body 140, respectively.

The guide inlet hole 134 is a hole formed through the circumference of the head 132, and the piston 150 may be positioned around the circumference of the head 132. When the guide inlet hole 134 is closed by the piston 150 (see FIG. 1 ), the contents do not flow into the head 132. In addition, when the guide inlet hole 134 is not closed by the piston 150 (see Fig. 7), the contents that have flowed into the inner space 112 flow into the inside of the head 132 through the guide inlet hole 134 After being discharged to the outside of the pump (100).

The coupling protrusion 164 of the valve 160 is inserted into the head groove 136 formed on the upper outer circumferential surface of the head 132, whereby the guide 130 and the valve 160 are integrally coupled and moved.

A blocking film 138 is formed inside the head 132. The inner space of the head 132 is separated into upper and lower portions by the blocking film 138, and the contents introduced into the lower portion do not flow out to the upper portion.

The head 132 is movably inserted into the inner cylinder 118 to guide its movement. Accordingly, the head 132 is prevented from shaking and distorting by the inner cylinder 118 during the vertical movement, so that the head 132 can operate stably.

The body 140 of the guide 130 is integrally formed with the head 132 to provide an upward elastic force. The body 140 has a structure in which a cutout 142 is formed in a zigzag cut in a zigzag circumference in a hollow cylindrical shape. When the body 140 is contracted in the longitudinal direction by such cutout 142 (see FIG. 7 ), it has an elastic force to press the head 132 upward.

An empty space is formed inside the body 140, and a head 132 and an internal cylinder 118 are positioned in the empty space. In addition, an upper body 144 having a ring shape is formed at the upper end of the body 140, and the upper body 144 is integrally formed with the head 132. In addition, a lower body 146 having a ring shape is also formed at the lower end of the body 140, and the lower body 146 is located on the inner bottom surface of the housing 110.

The plurality of cutouts 142 formed around the body 140 may all have the same central angle of 180 degrees or more, and may be formed with a constant size and spacing in a zigzag manner.

Of course, the present invention is not limited by the size, formation position and spacing of the cutout 142. Accordingly, the cutout 142 according to another embodiment of the present invention may be irregularly formed in the length direction of the body 140 or the plurality of cutouts 142 may have different central angles.

5 and 6 are perspective and cross-sectional views of the valve 160 of the pump 100 of FIG. 1.

1, 5 to 6, the valve 160 has a hollow cylindrical shape and the head 132 of the guide 130 is coupled therein. A coupling protrusion 164 is formed on the outer circumferential surface of the valve 160, and a nozzle (not shown) is coupled to the coupling protrusion 164 to form a passage through which the contents are discharged. In addition, a valve flange 162 is formed at the lower end of the valve 160. The valve flange 162 is caught on the inner circumferential surface 174 of the housing cover 170 (see FIG. 1).

The piston 150 has a hollow cylindrical shape and has a housing contact portion 152 and a guide contact portion 156 having an open upper and lower ends. In addition, the housing contact portion 152 and the guide contact portion 156 have the same center, and both are interconnected by a connection portion 154. The housing contact part 156 movably contacts the inner circumferential surface forming the inner space 112 of the housing, and the guide contact part 156 movably contacts the outer circumferential surface of the head 132 of the guide 130. According to the movement of the guide 130, the piston 150 also moves together with the guide 130 while being delayed for a predetermined time, whereby the guide inlet hole 134 may be opened (see FIG. 7).

The housing cover 170 serves to seal the upper portion by being coupled to the open upper portion of the housing 110. The housing cover 170 includes a coupling circumferential surface 172 screwed to an upper portion of the housing 110 and an inner circumferential surface 174 inserted into the upper interior of the housing 110 and in contact with the inner circumferential surface. And the inner circumferential surface of the inner circumferential surface 174 has a support protrusion 176 protruding inward, and the support protrusion 176 may support the head 132 movably while contacting the outer circumferential surface of the head 132.

A cap cover 180 is coupled to a lower portion of the housing cover 170 around the housing 110. The cap cover 180 has a structure in which the lower part is open and can be screwed to the upper inlet of a container (not shown). In addition, the upper surface of the cap cover 180 is in contact with the housing flange 116 and presses it downward. In addition, a packing (not shown) is coupled between the housing flange 116 and the upper surface of the cap cover 180 to prevent leakage of the contents.

Hereinafter, the operation of the pump 100 according to the present embodiment will be described with reference to FIGS. 1 and 7.

Referring to FIG. 1, when no external force is applied, the guide 130 is in an elevated state and the body 140 is not elastically contracted. And the piston 150 is located around the guide inlet hole 134 and closes it. In addition, the ball disk 124 corresponding to the opening and closing member closes the receiving protrusion 122 of the inner cylinder 118. As described above, in FIG. 1, since the receiving protrusion 122 and the guide inlet hole 134 are closed, the contents injected into the container are transferred to the inside of the inner cylinder 118 and the head 132 of the guide 130. Does not flow.

However, in the state of FIG. 1, the contents flow into the inner space 112 due to the opening of the ball disk 124 and the guide inlet hole 134 in the process of returning to the state of FIG. 1 from a downward pressurized state as in FIG. 7 Has been.

When the downward pressing force is provided in the state of FIG. 1, the pumping state is performed as shown in FIG. 7. That is, as the body 140 is elastically contracted by the downward pressing force, the head 132, the piston 150, and the valve 160 move downward. At this time, as the pressure inside the inner space 112 increases due to the lowering of the parts, the ball disk 124 is pressed downward to close the open lower end of the receiving protrusion 122. And the piston 150 also descends by the descending of the head 132, but the piston 150 descends while being in contact with the inner circumferential surface of the housing 110 by the housing contact portion 152, which is somewhat delayed compared to the head 132 And descend. The guide inlet hole 134 is opened for a predetermined time due to the delay in descending of the piston 150 as described above.

When the parts are lowered by an external force, the pressure inside the inner space 112 increases. As the guide inlet hole 134 is opened, the contents in the inner space 112 are headed through the guide inlet hole 134 due to the pressure difference. It flows into the interior of the 132 and the valve 160. In this way, the contents introduced into the valve 160 are discharged to the outside of the pump 100 through a nozzle (not shown) or the like.

When the external force is removed in the state of FIG. 7, the head 132, the valve 160, and the piston 150 rise together by the elastic restoring force of the body 140. Due to the rise of such components, the pressure inside the inner space 112 and the inner cylinder 118 is lowered, and the pressure is lowered compared to the inside of the container (not shown). Due to such a pressure difference, the contents filled in the container flow into the inner cylinder 118 and the inner space 112 while the ball disk 124 is opened.

In the process of ascending after the head 132 is lowered, the housing inflow passage 126 is opened as shown in FIG. 1, and thus, the contents introduced into the inner cylinder 118 are moved to the inner space 112. In addition, the piston 150 also rises due to the rise of the head 132 and closes the guide inlet hole 134 so that the contents do not flow into the head 132.

In the pump 100 according to the present embodiment, since the guide 130 simultaneously serves as an elastic member and is manufactured by plastic injection, it is easy to recycle and has the advantage of reducing the number of parts.

8 is a cross-sectional view illustrating a pump 200 according to a second embodiment of the present invention.

The pump 200 according to the second embodiment has the same configuration as the pump 100 according to the first embodiment, but the outer peripheral surface of the head 132 in place of the housing inlet passage 126 formed in the inner cylinder 118 It is characterized in that the guide inflow passage 139 is formed. The guide inlet passage 139 corresponds to a passage through which the contents flowing into the inner cylinder 118 can be discharged into the inner space 112 in the same manner as the housing inlet passage 126.

Although the above has been described with reference to an embodiment of the present invention, those of ordinary skill in the relevant technical field can use the present invention in various ways within the scope not departing from the spirit and scope of the present invention described in the following claims. It will be appreciated that it can be modified and changed.

100, 200: pump
110: housing
130: guide
132: head
140: body
150: piston
160: valve
170: housing cover
180: cap cover

Claims (8)

A housing including an inner space and an inner cylinder positioned in the inner space;
A guide including a head movably inserted and guided into the inner cylinder, and a body providing an upward elastic force to the head;
It includes a piston that is movably inserted around the outer circumference of the head,
The inner cylinder includes a through hole, an opening/closing means for opening and closing the through hole, and a housing inlet passage for allowing contents to flow into the inner space,
A guide inlet hole is formed through the periphery of the head, and the piston can open and close the guide inlet hole,
The guide inlet hole is located above and outside the body ,
The body is a pump having an elastic force by forming a plurality of cutouts in the shape of a hollow column. A housing including an inner space and an inner cylinder positioned in the inner space;
A guide including a head movably inserted and guided into the inner cylinder, and a body providing an upward elastic force to the head;
It includes a piston that is movably inserted around the outer circumference of the head,
The inner cylinder includes a through hole and an opening/closing means for opening and closing the through hole,
A guide inlet hole is formed through the periphery of the head, and the piston can open and close the guide inlet hole,
The guide inlet hole is located above and outside the body ,
In the portion of the head inserted into the inner cylinder, a guide inflow passage for allowing contents to flow into the inner space is formed,
The body is a pump having an elastic force by forming a plurality of cutouts in the shape of a hollow column. The method according to any one of claims 1 and 2,
The guide is a pump, characterized in that formed of a plastic material. The method according to any one of claims 1 and 2,
Pump, characterized in that the cutout has an arc shape and is formed in a zigzag shape. delete The method according to any one of claims 1 and 2,
A receiving protrusion is formed in a lower portion of the through hole, and the opening and closing means is a ball disk that is movably inserted into the receiving protrusion. The method according to any one of claims 1 and 2,
A valve is coupled to the upper part of the guide,
A housing cover is coupled to the upper part of the housing,
The pump, characterized in that the housing cover closes the upper portion of the housing and the valve passes through the center thereof. The method according to any one of claims 1 and 2,
A cap cover is coupled to an upper portion of the housing, and the cap cover is a pump capable of coupling the pump to an upper portion of the container.

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