JP3197254U - Pump dispenser - Google Patents

Abstract

A pump dispenser that sucks back the content liquid remaining in the nozzle portion, prevents the residual content liquid from flowing out and dripping, and prevents the content liquid from leaking when the container body tilts unexpectedly. provide. A pump dispenser includes a head portion, a connecting housing, a first lid body, a second lid body, a suction valve body, an elastic body, and a cylinder body. And the valve body 8. The connecting housing 2 is a hollow tube body having a piston portion 21 at one end, a second connecting portion 22 at the other end, a housing portion 23 inside, and a valve hole in the housing portion 23. Form. In the connection housing 2, the storage portion 23 communicates with the inside of the first connection portion formed in the head portion 1 to form a storage space. A plug-like sucking-back valve element 5 is provided in the storage space. The suction valve body 5 includes a plug body 51 in which a plurality of grooves 52 are formed along the axial direction on the outer peripheral surface. [Selection] Figure 1

Description

  The present invention relates to a pump dispenser that is attached to a container that contains a liquid, and more particularly, to a pump dispenser having a structure that sucks back the content liquid remaining in a nozzle portion to prevent leakage and dripping.

  For example, bottles, cans, and other containers that contain body cleansing agents such as body soaps or liquid cosmetics such as lotions are commonly used in daily life. Most of these containers are provided with a detachable pump dispenser for discharging and taking out the liquid stored in the container.

  The above-described pump dispensers have been continuously developed and improved in the industry, but there are still problems that cannot be solved. For example, the conventional pump dispenser 100 disclosed in FIG. 8 includes a push head 101, and the contents stored in the container body 102 when an external impact is applied or when the push head 101 is unexpectedly pressed. In order to prevent the liquid from leaking in advance, the push head 101 is normally pressed and screwed into the container body.

  However, since the push head 101 is in the depressed state, the cylinder 103 in the pump dispenser 100 is opened, and the liquid passage 104 is also opened. For this reason, when the container main body 102 is unexpectedly inclined, the content liquid stored in the container main body 102 leaks from the liquid passage 104 or other gaps.

  Further, the conventional pump dispenser 100 causes a problem that when the push head 101 is pressed during use, liquid or the like remains in the nozzle portion 105, and the remaining content liquid leaks and drops and flows to the outside. Therefore, how to prevent leakage of these liquids described above is an issue for improving the pump dispenser.

  This device sucks back the content liquid remaining in the nozzle part, prevents the residual content liquid from flowing out and dripping, and prevents the content liquid from leaking out when the container body tilts unexpectedly. It is an issue to provide.

  Therefore, as a result of intensive research in view of the drawbacks found in the conventional pump dispenser attached to the container containing the liquid, the present inventor has obtained a head portion, a connecting housing, a first lid, and a second lid. The present invention has been completed on the basis of the knowledge that the problem can be solved by a pump dispenser comprising a suction valve body, an elastic body, a cylinder body, and a valve body.

This device will be described below. The pump dispenser according to claim 1 includes a nozzle and a first connecting portion, and forms a first threaded portion on an inner wall, surrounds the first connecting portion, and extends downward. A head portion in which an insertion space is formed between the first connecting portion and the neck portion;
A hollow tube having a piston portion at one end and a second connecting portion having a storage portion having a valve hole formed therein at the other end, and the second connecting portion being the head portion A connecting housing that is inserted into and connected to the first connecting portion, and the storage portion communicates with the inside of the first connecting portion to form a storage space;
A first annular body that is a hollow annular body and is screwed to the container body;
It is a hollow tube, and is formed with a flange in a cylindrical portion extending downward, and the connecting housing is inserted into the cylindrical portion, and an outer peripheral surface is fitted to the first lid, A second threaded portion is formed by threading on the outer peripheral surface of the flange to be threadedly engaged with the first threaded portion of the head portion, and the neck portion of the head portion is fitted and inserted into the cylindrical portion. A second lid that is connected to the head portion and communicates with an insertion space of the head portion to form a storage space;
A plug body having a shape along the inner shape of the storage space of the connecting housing and having a plurality of grooves formed along the axial direction as passages for the content liquid on the outer peripheral surface thereof is provided in the storage space of the connecting housing. A plug-shaped suction valve body to be provided;
The cylindrical portion is provided in a storage portion formed in communication with the insertion space of the head portion, one end abuts on the bottom end portion of the cylindrical portion of the second lid, and the other end is the cylindrical portion. An elastic body positioned at the upper end of the insertion space formed in communication with the insertion space of the head portion;
A cylinder portion, a connection port portion, and a support portion are formed, and a chamber is formed. The piston portion of the coupling housing comes into contact with the inner wall of the cylinder portion to perform a piston motion, and the connection port portion is the cylinder. Cylinder body formed at the lower end of the portion and having an inner diameter narrower than that of the cylinder portion and forming an insertion hole, a support groove, and a content liquid inlet between the insertion hole and the support groove When,
And a valve body provided so as to be in contact with the internal fluid inlet of the cylinder body.

  In the pump dispenser according to a second aspect, the connecting housing according to the first aspect includes a content liquid passage therein.

  According to a third aspect of the present invention, the pump dispenser is threaded into the inner wall of the first lid body according to the first aspect to form a threaded portion that is threadedly engaged with the container body.

  According to a fourth aspect of the present invention, an annular abutting portion that contacts the inner wall of the cylinder portion is formed in the piston portion according to the first aspect.

  A pump dispenser according to a fifth aspect of the present invention has a position limiting portion formed at the upper end of the piston portion according to the first aspect, and a stop portion formed at the bottom end portion of the second lid body 4. When the position returns, the position restricting portion is configured to abut against the stopper and receive interference.

  According to a sixth aspect of the present invention, there is provided a dispenser according to claim 1, wherein the valve body in claim 1 has an umbrella shape, and includes an upper umbrella-shaped film portion and an insertion protrusion extending downward from the umbrella-shaped film portion. Is inserted into the insertion hole of the cylinder portion to attach the valve body to the support portion, and the umbrella-like film portion is positioned on the support groove of the cylinder portion and abuts against the content liquid inlet. Then, the content liquid inlet is closed downward with elasticity, and moved upward to open the content liquid inlet and serve to flow the content liquid into the chamber.

  According to a seventh aspect of the present invention, an engagement portion that engages with the insertion hole of the cylinder portion is formed on the outer peripheral surface of the insertion projection portion according to the sixth aspect.

  The pump dispenser described in claim 8 forms a connecting portion for assembling the first lid 3 and the second lid 4 at the upper end of the cylinder body in claim 1.

  The pump dispenser described in claim 9 is provided with a sealing ring for maintaining airtightness between the first lid body in claim 1 and the container body.

It is the exploded view which showed the structure of the pump dispenser by this device. It is sectional drawing which showed the structure of the pump dispenser disclosed in FIG. It is explanatory drawing which showed the state by which the head part in this invention was pressed down. It is explanatory drawing which showed the state which the head part in this invention returns to an original position. It is explanatory drawing which showed the state in which the head part in this invention was locked. It is explanatory drawing which showed the operation | movement which sucks back the content liquid which remains in the pump dispenser by the device of this. It is local expansion explanatory drawing of the cylinder body in this device. It is explanatory drawing of the conventional pump dispenser.

  This device sucks back the content liquid remaining in the nozzle part, prevents the residual content liquid from flowing out and dripping, and prevents the content liquid from leaking out when the container body tilts unexpectedly. And comprising a head, a connecting housing, a first lid, a second lid, a sucking valve, an elastic body, a cylinder, and a valve. Become. In order to explain the structure and characteristics of such a pump dispenser, a specific example will be given and described in detail below with reference to the drawings.

  As disclosed in FIG. 1, a pump dispenser 10 according to the present invention includes a head portion 1, a connecting housing 2, a first lid body 3, a second lid body 4, a suction valve body 5, an elastic body. A body 6, a cylinder body 7, and a valve body 8 are included.

  As disclosed in FIGS. 1 and 2, the head portion 1 surrounds the nozzle 11, the first connecting portion 13, the first screwing portion 14 formed on the inner wall of the head portion 1, and the first connecting portion 13. And a neck portion 12 extending downward, and an insertion space 15 formed between the first connecting portion 13 and the neck portion 12.

  The connecting housing 2 is a hollow tube body and includes a piston portion 21 at one end. The piston part 21 forms an annular contact part 211 at one end, and forms a second connection part 22 at the other end. The second connecting portion 22 includes a storage portion 23 therein and forms a valve hole 24 in the storage portion 23.

  In the connecting housing 2, the second connecting portion 22 is inserted into the first connecting portion 13 and connected to the head portion 1, and the storage portion 23 communicates with the inside of the first connecting portion 13 to form a storage space 91. To do.

  The first lid 3 is a hollow annular body, and is screwed to, for example, the container body 20 disclosed in FIG. The second lid body 4 is a hollow tube body, which is formed by forming a flange on a tubular portion 41 extending downward, and the connecting housing 2 is inserted into the tubular portion 41, and the outer peripheral surface is the first. A second screwing portion 42 that is fitted to the lid 3 and screwed onto the outer peripheral surface of the flange to be screwed into the first screwing portion 14 of the head portion 1 is formed.

  The second lid 4 is connected to the head portion 1 by fitting the neck portion 12 of the head portion 1 into the cylindrical portion 41 and screwing the second screwing portion 42 to the first screwing portion 14. At the same time, the connecting housing 2 is fitted and inserted into the tubular portion 41, and further fitted into the first lid 3. Therefore, the cylindrical portion 41 communicates with the insertion space 15 of the head portion 1 to form the storage space 92, and the inner wall of the second lid body 4 is in contact with the outer peripheral surface of the connection housing 2.

  The storage space 91 is provided with a plug-like suction valve body 5. The suction valve body 5 includes a plug body 51 in which a plurality of grooves 52 are formed along the axial direction on the outer peripheral surface, and the plug body 51 has a shape that follows the internal shape of the storage portion 23. Abut. The groove 52 serves as a passage for the content liquid stored in the container body 20.

  The elastic body 6 is provided in the storage space 92, one end is in contact with the bottom end portion of the cylindrical portion 41 of the second lid body 4, and the other end is positioned at the upper end of the insertion space 15.

  The cylinder 7 is connected to the first lid 3 and connected to the second lid 4. The cylinder body 7 includes a cylinder portion 71, a connection port portion 72, and a support portion 73. The annular contact portion 211 of the piston portion 21 comes into contact with the inner wall of the cylinder portion 71 and the piston motion proceeds. Further, a chamber 74 is formed in the cylinder body 7.

  The connection port portion 72 is formed at the lower end of the cylinder portion 71 and has an inner diameter narrower than that of the cylinder portion 71. The support portion 73 is formed at the upper end opening of the connection port portion 72 and, as disclosed in FIG. 7, forms an insertion hole 731 and a support groove 732, and between the insertion hole 731 and the support groove 732. A content liquid inlet 733 is formed.

  As disclosed in FIGS. 7 and 1 and 2, the valve body 8 has an umbrella shape, and is composed of an umbrella-shaped film portion 81 at the upper end and an insertion projection portion 82 extending downward from the umbrella-shaped film portion 81. The insertion protrusion 82 is inserted into the insertion hole 731, and the valve body 8 is attached to the support portion 73. The umbrella-shaped film portion 81 is located on the support groove 732, abuts on the content liquid inlet 733, closes the content liquid inlet 733 downward with elasticity, and moves upward to move the content liquid inlet 733. 733 is opened and the content liquid is supplied to the chamber 74.

  Further, as disclosed in FIGS. 1 to 3, the connecting housing 2 includes a content liquid passage 25 therein.

  The first lid 3 is screwed into the inner wall to form a screwing portion 31 that is screwed into the container body 20.

  A position limiting portion 26 is formed at the upper end of the piston portion 21, and a stopper portion 43 is formed at the bottom end portion of the second lid body 4. Therefore, when the position of the connecting housing 2 returns, the position restricting portion 26 comes into contact with the stopper 43 and receives interference.

  An engagement portion 821 that engages with the insertion hole 731 is formed on the outer peripheral surface of the insertion projection portion 82, and a connecting portion 75 that is assembled with the first lid body 3 and the second lid body 4 is formed on the upper end of the cylinder body 7. In addition, a sealing ring 32 is provided between the first lid 3 and the container body 20 to maintain airtightness.

  FIG. 3 discloses the operation of the pump dispenser according to the present invention. As disclosed in the drawings, when a certain amount of force is applied to depress the head unit 1 and move downward to the range of S1, the head unit 1 causes the connecting housing 2 to move downward. In this case, since the piston portion 21 of the connecting housing 2 moves downward, the space of the chamber 74 of the cylinder portion 71 is compressed, and the umbrella-like film portion 81 of the valve body 8 is downwardly related due to pressure. The liquid inlet 733 is closed. For this reason, the content liquid in the chamber 74 flows into the content liquid passage 25 of the connecting housing 2, further pushes the suction valve body 5 and flows from the valve hole 24 to the nozzle 11, and finally the head portion 1. Nozzle 11 is discharged.

  As disclosed in FIGS. 3 and 4, when the force for pressing the head portion 1 is released, the head portion 1 moves upward in conjunction with the connecting housing 2 by the urging force of the elastic body 6. Space increases. For this reason, the suction valve body 5 is sucked downward by the action of vacuum suction to close the valve hole 24. At the same time, the liquid in the container body 20 receives the action of vacuum suction and flows in from the connection port portion 72, pushes open the umbrella-shaped film portion 81 of the valve body 8, and the position limiting portion 26 of the connecting housing 2 is the second lid. It flows into the chamber 74 from the content liquid inlet 733 until it comes into contact with the stopper 43 of the body 4 and interferes with each other to recover the state of preparing the next pressing force of the head 1.

  As disclosed in FIGS. 4 and 5, when the head portion 1 is pressed down and rotated to the position of S <b> 2, the second screwing portion 42 of the second lid 4 is connected to the first screwing portion 14 of the head portion 1. The umbrella-shaped film part 81 is screwed and receives a pressing force of the lower edge part of the piston part 21 of the connecting housing 2 to form a sealed state. Therefore, even if the container body 20 is tilted unexpectedly in the process of transporting the container body 20 containing the content liquid, the pump dispenser 10 is in a sealed state, so that the content liquid is contained in the content liquid passage 25 or the valve hole 24. Does not ooze out. For this reason, the problem that the content liquid leaks out from the container main body seen in the prior art can be solved efficiently.

  As shown in FIG. 6, when the force for pressing the head portion 1 is released, the head portion 1 moves upward in conjunction with the connecting housing 2 by the urging force of the elastic body 6. Will increase. In this case, in the process in which the head portion 1 moves in the range of S1, the suction valve body 5 receives the vacuum suction of the cylinder body 7 and closes the valve hole 24 downward. At the same time, the content liquid remaining in some of the nozzles 11 is sucked back. Therefore, the problem that the content liquid remaining in the nozzle 11 flows out and drops can be efficiently prevented.

  The above is a preferred embodiment of the present invention, and does not limit the scope of implementation of the present invention. Therefore, it is a modification or change that can be made by those skilled in the art. Anything made under the spirit of this invention and having an equivalent effect on this invention shall be included in the scope of the claim for registration of the utility model of this invention.

DESCRIPTION OF SYMBOLS 1 Head part 10 Pump dispenser 100 Pump dispenser 101 Push head 102 Container main body 103 Cylinder 104 Liquid passage 105 Nozzle part 11 Nozzle 12 Neck part 13 First connection part 14 First screwing part 15 Insertion space 2 Housing 20 Container main body 21 Piston Part 211 annular contact part 22 second connecting part 23 storage part 24 valve hole 25 content liquid passage 26 position restricting part 3 first lid 31 screwing part 32 sealing ring 4 second lid 41 tubular part 42 second screw Joint part 43 Stop part 5 Suction valve element 51 Plug body 52 Groove 6 Elastic body 7 Cylinder body 71 Cylinder part 72 Connection port part 73 Support part 731 Insertion hole 732 Support groove 733 Contents liquid inlet 74 Chamber 75 Connection part 8 Valve body 81 Umbrella-shaped film part 82 Insertion projection part 821 Engaging part 91 Storage space 92 Storage space

Claims (9)

A nozzle and a first connecting portion; and a first threaded portion on the inner wall, a neck portion surrounding the first connecting portion and extending downward, the first connecting portion and the neck A head part having an insertion space between the parts,
A hollow tubular body having a second connecting portion having a piston portion at one end and a receiving portion having a valve hole inside at the other end; and the second connecting portion is connected to the head portion of the head portion. A connecting housing that is inserted and connected to the first connecting portion, and the storage portion communicates with the inside of the first connecting portion to form a storage space;
A first annular body that is a hollow annular body and is screwed to the container body;
A hollow tubular body having a flange in a tubular portion extending downward, inserting the connecting housing into the tubular portion, and fitting an outer peripheral surface to the first lid, A second threaded portion threaded on the outer peripheral surface of the flange and threadedly engaged with the first threaded portion of the head portion; and the neck portion of the head portion is fitted and inserted into the cylindrical portion. A second lid body that is connected to the head portion so that the cylindrical portion communicates with an insertion space of the head portion to form a storage space;
A plug body having a shape along the inner shape of the storage space of the connecting housing and having a plurality of grooves formed along the axial direction as passages for the content liquid on the outer peripheral surface thereof is provided in the storage space of the connecting housing. A plug-shaped suction valve body to be provided;
The cylindrical portion has a storage portion formed in communication with the insertion space of the head portion, one end abuts on the bottom end portion of the cylindrical portion of the second lid, and the other end is the cylindrical shape. An elastic body positioned at the upper end of the insertion space formed by communicating with the insertion space of the head portion;
A cylinder portion, a connection port portion, and a support portion, and having a chamber, the piston portion of the coupling housing comes into contact with the inner wall of the cylinder portion to enable piston movement, and the connection port portion is A cylinder body having a lower end of the cylinder portion and having an inner diameter narrower than that of the cylinder portion and having a content liquid inlet between the insertion hole and the support groove;
A pump dispenser comprising: a valve body that abuts on the internal fluid inlet of the cylinder body.   The pump dispenser according to claim 1, wherein the connecting housing includes a content liquid passage therein.   2. The pump dispenser according to claim 1, further comprising a screwing portion that is screwed into the container body on the inner wall of the first lid.   The pump dispenser according to claim 1, wherein the piston portion has an annular contact portion that contacts an inner wall of the cylinder portion.   The upper end of the piston portion has a position limiting portion, and the bottom end portion of the second lid body 4 has a stopper portion. When the position of the connecting housing is returned, the position limiting portion becomes the stopper portion. 2. The pump dispenser according to claim 1, wherein the pump dispenser is abutted and receives interference.   The valve body has an umbrella shape, and includes an umbrella-shaped film portion at the upper end and an insertion protrusion extending downward from the umbrella-shaped film portion, and the insertion protrusion is inserted into the insertion hole of the cylinder portion. The valve body is attached to the support portion, and the umbrella-shaped film portion is positioned on the support groove of the cylinder portion and contacts the content liquid inlet, and the content liquid inlet is downwardly elastically pressed. 2. The pump dispenser according to claim 1, wherein when the liquid is moved upward, the content liquid inlet is opened to allow the content liquid to flow into the chamber.   The pump dispenser according to claim 6, wherein an engagement portion that engages with the insertion hole of the cylinder portion is provided on an outer peripheral surface of the insertion projection portion.   2. The pump dispenser according to claim 1, further comprising a connecting portion for assembling the first lid body 3 and the second lid body 4 at an upper end of the cylinder body.   The pump dispenser according to claim 1, further comprising a sealing ring for maintaining airtightness between the first lid and the container body.

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