KR102427032B1 - Pump - Google Patents

Abstract

Disclosed is a pump that is easy to recycle and can reduce the number of parts. A pump according to an aspect of the present invention includes a housing having an inner space and an inner cylinder positioned in the inner space, a head providing a passage through which contents are discharged to the outside of the inner space, and an upward elastic force to the head. It includes a guide made of a body and a piston that is movably inserted around the head, and the inner cylinder has a through hole and an opening/closing means capable of opening and closing the through hole, and the contents are introduced into the inner space by the opening and closing means. , a guide inlet passage is formed around the head, the piston can open and close the guide inlet passage, and the body has an elastic force by forming a plurality of cutouts in the shape of a hollow column.

Description

pump {PUMP}

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

In cosmetic containers, shampoo containers, etc., the pump is coupled to an upper inlet of a container for storing liquid content such as cosmetic liquid, and functions to discharge and spray the content to the outside by a fixed amount. When the user presses down the nozzle corresponding to the button to spray the liquid content, the content injected into the container is pressurized, rises along the discharge passage, and is sprayed through the nozzle. And when the pressure on the nozzle is released, the discharge passage is mechanically closed by the rising of the nozzle, and as the pressure inside the pump is lowered, the contents are introduced from the container to supplement it.

A cosmetic container having such a pump is used for spraying various contents such as perfume and cosmetics, as well as shampoo, air freshener, and insecticide. In particular, it is possible to discharge the contents quantitatively by one pressurization of the nozzle, and since the contents are not exposed to external air, their use 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 configuration 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 recycling difficult because the material is different from other parts made of plastic. In particular, in recent years, as the interest and necessity for environmental protection increases, the demand for easily recyclable cosmetic containers is increasing, but the conventional cosmetic containers do not 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 clearer through the examples described below.

A pump according to an aspect of the present invention includes a housing having an inner space and an inner cylinder positioned in the inner space, a head providing a passage through which contents are discharged to the outside of the inner space, and an upward elastic force to the head. It includes a guide made of a body and a piston that is movably inserted around the head, and the inner cylinder has a through hole and an opening/closing means capable of opening and closing the through hole, and the contents are introduced into the inner space by the opening and closing means. , a guide inlet passage is formed around the head, the piston can open and close the guide inlet passage, and the body has an elastic force by forming a plurality of cutouts in the shape of a hollow column.

The pump according to the present invention may include at least 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 be formed in a zigzag manner.

The inner cylinder may be spaced apart from the head, and the opening/closing means may be a valve disk coupled to the upper portion of the inner cylinder.

The valve disc may include a disc body coupled to the upper part of the inner cylinder, a connecting member having one end coupled to the inner circumferential surface of the disc body, and a disc coupled to the other end of the connecting member and capable of opening and closing the through hole by movement. have.

According to the problem solving means of the present invention as described above, various effects including the following items 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.
FIG. 2 is a cross-sectional view of the housing of the pump of FIG. 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 the pump is pressurized in FIG. 1 and the contents are discharged.
8 is a cross-sectional view illustrating a pump according to a second embodiment of the present invention.
9 is a cross-sectional view illustrating a pump according to a third embodiment of the present invention.
FIG. 10 is a cross-sectional view illustrating a housing of the pump illustrated in FIG. 9 .
11 is a cross-sectional perspective view illustrating a valve disk of the pump illustrated in FIG. 9 .

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the 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. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Terms such as first, second, etc. 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.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. A description will be omitted.

The pump according to the present invention is applied to containers for various uses, such as cosmetic containers, shampoo containers, and detergent containers, to discharge liquid contents. Therefore, the pump according to the present invention is not limited by the type and nature 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 (not shown) injected into the container 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 providing an elastic force, and the body 140 is formed of a plastic material rather than 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.

FIG. 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 internal space 112 into which contents (not shown) are introduced. The contents are introduced and stored in the inner space 112 by the operation of the pump 100 . In addition, the piston 150, the entire body 140 of the guide 130, and a part (refer to FIG. 1) and a part (refer to FIG. 7) of the head 132 are located in the inner space 112.

A housing flange 116 is formed around the upper portion of the housing 110 . The upper portion of the housing flange 116 is pressed downward in the open upper direction of the container (not shown) by the cap cover 180 . And an air hole 114 is formed through the lower portion of the housing flange 116 . The air hole 114 allows external air to flow into the interior of the container, thereby preventing the pressure inside the container from being reduced by the operation of the pump.

The housing 110 has a hollow cylindrical shape having a circular cross-section and has an open top. In addition, the lower portion of the housing 110 is opened by the inner cylinder 118 , and the contents are introduced into the inner cylinder 118 through the open lower portion of the inner cylinder 118 and then into the inner space 112 . is emitted

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, of course, in the pump according to another embodiment of the present invention, the housing may have various shapes such as an oval, a polygon including a quadrangle, 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 inside the inner cylinder 110, the ball disk 124 corresponding to the opening and closing means is located.

Although the pump according to this embodiment has been exemplified as having the ball disk 124 as the opening/closing means, the present invention is not limited by the configuration of the opening/closing means. Accordingly, the pump according to another embodiment of the present invention may include various opening/closing means such as a disk or check valve disclosed in Korean Patent Registration No. 1963619.

The inner cylinder 118 has a smaller diameter than that of the housing 110 and a through hole 120 corresponding to the boundary is formed therein. An upper portion of the through hole 120 is a space into which the head 132 is movably inserted, and a lower portion thereof corresponds to a passage through which only the contents move. In addition, the housing inlet passage 126 is formed in the longitudinal direction on the upper peripheral surface of the inner cylinder 118 to have a slot shape.

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

The ball disk 124 is inserted movably by a predetermined distance in the inner space of the receiving protrusion 122 , and has a larger diameter than the through hole 120 . And on the inner circumferential surface of the receiving protrusion 122, a protrusion for preventing the ball disk 124 from being separated is formed. The ball disk 124 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 the spring of the conventional pump are combined and integrally formed by plastic injection. That is, in the conventional pump, the head 132 corresponding to the guide and the body 140 corresponding to the spring are integrally formed by 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 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 . And a guide inlet passage 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 passage 134 is a hole formed through the periphery of the head 132 , and the piston 150 may be positioned on the periphery thereof. When the guide inlet passage 134 is closed by the piston 150 (see FIG. 1 ), the content does not flow into the inside of the head 132 . In addition, when the guide inlet passage 134 is not closed by the piston 150 (see FIG. 7 ), the content introduced into the inner space 112 flows into the inside of the head 132 through the guide inlet passage 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 divided 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 twisting by the inner cylinder 118 in the process of moving up and down, so that it 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 the cutout 142 cut in a zigzag manner in the shape of an arc around the hollow cylindrical shape is formed. When the body 140 is contracted in its longitudinal direction by the cutout 142 (see FIG. 7 ), the body 140 has an elastic force for upwardly pressing the head 132 .

An empty space is formed inside the body 140 , and the head 132 and the inner cylinder 118 are positioned in the empty space. And 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 . Also, a lower body 146 having a ring shape is 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 in a zigzag manner with a constant size and spacing.

Of course, the present invention is not limited by the size, formation position and spacing of the cutout 142 . Therefore, the cutout 142 according to another embodiment of the present invention may be irregularly formed in the longitudinal direction of the body 140 or a 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 and 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 peripheral 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. And a valve flange 162 is formed at the lower end of the valve 160 . The valve flange 162 is caught on the inner peripheral surface 174 of the housing cover 170 (see FIG. 1).

The piston 150 has a hollow cylindrical shape and has a housing contacting portion 152 and a guide contacting portion 156 having both upper and lower ends open. And the housing contact portion 152 and the guide contact portion 156 have the same center, and both are interconnected by the connecting 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 with the guide 130 while being delayed for a predetermined time, whereby the guide inlet hole 134 may be opened (refer to FIG. 7).

The housing cover 170 is coupled to the open upper portion of the housing 110 and serves to seal the upper portion. The housing cover 170 includes a coupling circumferential surface 172 screwed to the 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 on the inner circumferential surface of the inner circumferential surface 174, there is a support protrusion 176 that protrudes inwardly, the support protrusion 176 may movably support the head 132 while in contact with 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 an open structure at the bottom and has a structure that can be screwed to the upper inlet of the container (not shown). And the upper surface of the cap cover 180 is in contact with the housing flange 116 and presses it downward. And a packing (not shown) is coupled between the housing flange 116 and the upper surface of the cap cover 180 to prevent the contents from leaking out.

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 positioned around the guide inlet hole 134 to close 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 passage 134 are closed, the contents injected into the container are transferred to the inside of the inner cylinder 118 and the inside of the head 132 of the guide 130. does not flow in

However, in the state of FIG. 1, the contents are introduced into the inner space 112 due to the opening of the ball disk 124 and the guide inlet passage 134 in the process of returning to the state of FIG. has been

When a downward pressing force is provided in the state of FIG. 1, it becomes a pumping state as shown in FIG. 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 by the descending of the components, 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 in contact with the inner circumferential surface of the housing 110 by the housing contact part 152, so it is slightly delayed compared to the head 132. become and descend The guide inlet passage 134 is opened for a predetermined time by such a delay in descending of the piston 150 .

When the parts are lowered by an external force, the pressure inside the inner space 112 increases. As the guide inlet passage 134 is opened, the contents in the inner space 112 are moved to the head through the guide inlet passage 134 due to the pressure difference. 132 and the valve 160 is introduced into the interior. The contents introduced into the valve 160 in this way 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 . As the pressure inside the inner space 112 and the inner cylinder 118 is lowered due to the rise of these parts, the pressure is lowered compared to the inside of the container (not shown). Due to this pressure difference, as the ball disk 124 is opened, the contents filled in the container are introduced into the inner cylinder 118 and the inner space 112 .

In the process of the head 132 descending and then ascending, the housing inlet passage 126 is opened as shown in FIG. 1 , whereby the contents introduced into the inner cylinder 118 move to the inner space 112 . And the piston 150 also rises due to the elevation of the head 132 and closes the guide inlet passage 134 to prevent the contents from flowing into the inside of the head 132 .

In the pump 100 according to the present embodiment, since the guide 130 simultaneously functions as an elastic member and is manufactured by plastic injection, recycling is easy and the number of parts can be reduced.

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, except that instead of the housing inlet passage 126 formed in the inner cylinder 118 , the outer circumferential surface of the head 132 . It is characterized in that the housing inlet passage 139 is formed. The housing inlet passage 139 corresponds to a passage through which the contents introduced into the inner cylinder 118 can flow out into the inner space 112 in the same manner as the housing inlet passage 126 .

9 is a cross-sectional view illustrating a pump 300 according to a third embodiment of the present invention. And FIG. 10 is a cross-sectional view illustrating the housing 210 of the pump 300 illustrated in FIG. 9 , and FIG. 11 is a cross-sectional perspective view illustrating the valve disk 224 .

9 to 11 , in the pump 300 according to the third embodiment of the present invention, the housing 210 and the valve disk 224 as an opening/closing means are the pumps ( It has a different configuration from the housing 110 and the ball disk 124 of 100 and 200), and the rest have the same or similar configuration. The housing 210 of the pump 300 according to the third embodiment has the same configuration as the pump 100 according to the first embodiment and the pump 200 according to the second embodiment, except that of the inner cylinder 218 There is a difference in composition. That is, the inner cylinder 218 is formed shorter than the inner cylinder 118 of the pumps 100 and 200 according to other embodiments, and the head 132 of the guide 130 is not inserted therein. Accordingly, the contents passing through the inner cylinder 218 may be directly introduced into the inner space 112 of the housing 210 without being introduced into the head 132 .

The inner cylinder 218 has a through hole 220 formed at an upper end thereof. The through hole 220 corresponds to a passage through which the contents are introduced into the inner space 112 in the same manner as the through hole 120 of the pump 100 according to the first embodiment. And the valve disk 224 corresponding to the opening and closing member is coupled to the upper portion of the through hole 220 .

A seating step 230 is formed on the outer peripheral surface of the inner cylinder 218 . The lower end of the valve disk 224 is seated on the seating step 230 . And a coupling protrusion 231 is formed on the upper portion of the seating step 230 among the outer circumferential surface of the inner cylinder 218, which is inserted into the body coupling groove 233 formed on the inner circumferential surface of the disk body 232 of the valve disk 224. do. Due to the coupling structure of the coupling protrusion 231 and the body coupling groove 233 as described above, the disc body 232 is not easily removed from the inner cylinder 218 even when the pressure according to the discharge of the contents is applied.

A nozzle protrusion 228 protruding to the outside of the inner space 112 is formed at the lower end of the inner cylinder 218 . The nozzle protrusion 228 is a part connected to the nozzle (not shown).

The valve disk 224 corresponding to the opening/closing member is opened or closed by the pressure of the inner space 112 and blocks the contents from flowing into or flowing into the inner space 112 . The valve disk 224 includes a disk body 232 , a disk 234 and a connecting member 236 .

The disk body 232 has a hollow cylindrical shape with both ends open, and one end of the connecting member 236 is coupled to an inner circumferential surface thereof. And the disk body 232 is inserted into the upper part of the inner cylinder (218).

The connecting member 236 has a curved shape and is provided in plurality, and supports the disk 234 so that the disk 234 can move up and down while connecting the disk body 232 and the disk 234 . And the other end of the connecting member 236 is connected to the outer peripheral surface of the disk (234). The connecting member 236 may have a small cross-sectional area so as to have an elastic force.

The disk 234 has a disk shape, and the diameter thereof may be the same as or slightly larger than the through hole 220 so as to cover all of the through hole 220 . When the pressure of the inner space 112 is greater than that of the container (not shown) into which the contents are injected, the disk 234 descends as shown in FIG. 9 to close the through hole 220 . And when the pressure of the inner space 112 is smaller than that of the container, the disk 234 rises by the pressure difference, and as a result, the through hole 220 is opened.

Although the above has been described with reference to one embodiment of the present invention, those of ordinary skill in the art may change the present invention in various ways without departing from the spirit and scope of the present invention described in the claims below. It will be appreciated that modifications and variations are possible.

100, 200, 300: pump
110, 210: housing
130: guide
132: head
140: body
150: piston
160: valve
170: housing cover
180: cap cover

Claims (4)

An outer wall forming an inner space, an inner cylinder located in the center at a predetermined distance from the outer wall in the inner space and having an open top, and a housing flange extending outwardly from the outer circumferential surface of the outer wall around the upper periphery of the outer wall; , a housing having an air hole formed in a lower portion of the housing flange;
a guide comprising a head providing a passage through which contents are discharged to the outside of the inner space, and a body providing an upward elastic force to the head;
a piston which is movably inserted around the head and includes a housing contact part that is in close contact with the inner circumferential surface of the housing and a guide contact part that is in close contact with the outer circumferential surface of the head;
a cap cover coupled to the upper inlet of the container for accommodating the contents, the upper surface of which is in contact with the housing flange and configured to be pressed down;
Doedoe coupled to the upper portion of the housing, comprising a housing cover comprising a coupling peripheral surface in contact with the outer circumferential surface of the outer wall, and an inner circumferential surface in contact with the inner circumferential surface of the outer wall,
The inner cylinder includes a through-hole and an opening/closing means capable of opening and closing the through-hole, and the contents are introduced into the inner space by the opening/closing means,
A guide inlet passage is formed around the head, and the piston can open and close the guide inlet passage,
The body has a hollow column shape, an empty space is formed therein, and has an elastic force by forming a plurality of cutouts in the hollow column shape, and the body has an outer diameter corresponding to the inner diameter of the outer wall and an outer diameter of the inner cylinder has an inner diameter corresponding to, and the lower portion of the head is located in the inner center of the body and has an outer diameter corresponding to the inner diameter of the open upper portion of the inner cylinder,
The body is disposed to be inserted into a space between the outer circumferential surface of the inner cylinder and the inner circumferential surface of the outer wall of the housing, and the lower portion of the head is movably inserted into the inner cylinder,
A housing inlet passage communicating the inside of the inner cylinder and the inner space is formed on the lower portion of the head or the upper portion of the inner cylinder,
In a state in which the guide does not descend, the air hole is closed with the upper portion of the housing contact portion inserted between the outer wall of the housing and the inner circumferential surface of the housing cover, and the guide contact portion closes the guide inlet passage and the housing inlet passage is opened to introduce the contents into the inner space,
In a state in which the guide is lowered by an external force, the air hole is opened, the guide inlet passage is opened, and the housing inlet passage is closed while the lower portion of the head and the inner cylinder overlap. According to claim 1,
The guide is formed by a plastic material,
The cutout has an arc shape and is characterized in that the pump is formed in a zigzag. According to claim 1,
The inner cylinder is spaced apart from the head,
The opening and closing means is a pump, characterized in that the valve disk coupled to the upper portion of the inner cylinder. 4. The method of claim 3,
The valve disk may include a disk body coupled to the upper portion of the inner cylinder, a connection member having one end coupled to an inner circumferential surface of the disk body, and the other end coupled to the other end of the connection member to open and close the through hole by movement A pump comprising a disk.

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