JP5666504B2 - Push pump - Google Patents

Description

  The present invention relates to a push pump that is attached to a container containing a solution such as a liquid detergent, and more particularly to a push pump that discharges the solution in the container in a foam form.

  A general container containing a liquid detergent for cleaning usually has an elastic push pump for pumping out the solution in the container at the head of the container. For example, when a liquid detergent is used in the form of foam for dishwashing, shampooing, or the like, the liquid detergent or shampoo is generally pumped out using the elastic push pump, and both palms are rubbed into a foam.

  However, the conventional elastic push pump described above cannot control the amount of liquid detergent or shampoo to be pumped from the container. Therefore, for example, when the amount of liquid detergent used for washing dishes is more than necessary and not sufficiently rinsed, the detergent easily remains in the dishes, which constitutes an injury to the human body. Similarly, in the case of shampoo, if it remains on the scalp of the human body, it constitutes an injury to the scalp. Therefore, if it is a pump which draws out liquid and gas from a container and forms foam, the amount of use can be controlled easily and it is convenient on use. Therefore, development of a push-type pump that generates and discharges such bubbles is desired in the industry.

  The present invention provides a push-type pump provided at the head of a container containing a liquid detergent and the like, which can generate and discharge bubbles in the process of pumping out the liquid detergent in the container. The task is to do.

  Therefore, the present inventor has conducted extensive research in view of the conventional technology, and as a result, the pressing head portion, the connecting cap, the filter portion, the air valve, the support column member, the piston portion, the connecting rod set, and the elastic body. Focusing on the number of points that can be solved by a push-type pump that consists of a cylinder part and a valve part and is attached to the head of a container that contains liquid detergent and pumps out the solution stored in the container. Based on these findings, the present invention has been completed.

The present invention will be specifically described below.
The push type pump according to claim 1 includes a connection cap, and a pressure head unit connected to the connection cap,
A filter unit comprising a first filtration net and a second filtration net;
A first annular groove and a second annular groove are formed, the first filtration net is fitted to one end, the one end is fitted to the pressing head portion, and the other end is 2 Air valve to fit the filtration net;
A first column body that is fitted into the second annular groove of the air valve to form a first chamber in the second annular groove and that forms a gap with the inner wall of the second annular groove; A supporting column member of a hollow tubular body formed by a column body, a flange portion, and a retaining groove;
A third annular groove and a fourth annular groove are formed, and an airtight ring is provided that is slidable and that abuts against the retaining groove of the support column member. The upper end of the fourth annular groove and the air valve A first piston that forms a gas entry groove between the inner wall of the first annular groove and a second gap between the lower end of the fourth annular groove and the flange of the support column member; and A piston portion comprising: 5 annular grooves; and a second piston having a sixth annular groove connected to the second pillar body;
A first housing formed at one end with a locking portion for locking against the inner wall of the first column of the support column member; the sixth annular groove penetrating through the second piston and the first of the support column member; A second housing provided so as to reach the hollow portion of the support column, and an engaging portion, and the first housing and the second housing are connected via the engaging portion; and A connecting rod set that is slidably inserted into the support column member to form a third gap with the inner wall of the second column body,
An elastic body fitted on the outer periphery of the second column body and having one end abutting against the flange of the support column member;
A first cylinder in which a portion where the third annular groove of the first piston is formed in contact with the inner wall abuts to reciprocate the first piston and a sealed second chamber is formed, and a second cylinder is formed in the inner wall. A portion of the piston in which the fifth annular groove is formed abuts to be used for reciprocating movement of the second piston, and a sealed third chamber is formed, and a second cylinder having a passage opening at the upper end is formed. A cylinder portion provided with an annular tip 3 between the first cylinder and the second cylinder;
And a valve portion provided so as to be in contact with one end forming the passage opening of the second cylinder.

  According to a second aspect of the present invention, the valve portion according to the first aspect has a spiral shape, and reciprocates in the vertical direction to open and close the passage port.

  A push type pump according to claim 3 has a spiral path in which a suction path is formed in the second cylinder of claim 1 and the valve section is provided in the suction path, and the valve section has elasticity. And the stop part which contact | abuts to this passage opening is formed in one end.

  According to a fourth aspect of the present invention, there is provided the push pump according to the first aspect, wherein the filter portion includes a hollow tube having a first end and a second end, and the filter portion is provided in the valve portion via the hollow tube. .

  According to a fifth aspect of the present invention, the diameter of the mesh of the first filtration net of the filter section in the first aspect is made narrower or equal to the diameter of the mesh of the second filtration net.

  The push pump according to claim 6 provides a bubble buffering space in the hollow tube of the filter portion according to claim 1.

  According to a seventh aspect of the present invention, there is provided a push type pump in which the first filtration net or the second filtration net in the first aspect is formed by injection molding.

  In the push pump according to claim 8, the meshes of the first filtration net and / or the second filtration net in claim 1 are formed in a hexagonal shape.

  According to a ninth aspect of the present invention, there is provided a push-type pump having a screw thread corresponding to a screw thread to be screwed into a mouth portion of a container to which the push-type pump is attached.

  The push pump according to claim 10 is characterized in that a suction pipe is provided at a passage port of the second cylinder according to claim 1.

It is an exploded view of the push type pump by this invention. It is a partially cutaway sectional view of the push pump disclosed in FIG. It is sectional drawing of the push type pump by this invention. It is explanatory drawing which showed operation | movement of the push type pump disclosed in FIG. It is explanatory drawing which showed embodiment of the 1st filtration net in this invention or the 2nd filtration net. FIG. 6 is a locally enlarged view of the filtration net disclosed in FIG. 5. It is explanatory drawing which showed operation | movement of the push type pump by other embodiment. It is explanatory drawing which showed operation | movement of the push type pump by other embodiment. It is explanatory drawing which showed operation | movement of the push type pump by another embodiment.

  This invention is a push-type pump attached to a container containing a solution such as a liquid detergent, that is, provided at the head of a container containing a liquid detergent, etc., and generating bubbles in the process of pumping out the liquid detergent etc. in the container A push-type pump that can be discharged in a compressed manner, and includes a pressure head unit, a coupling cap, a filter unit, an air valve, a support column member, a piston unit, a coupling rod set, and elasticity. It consists of a body, a cylinder part, and a valve part. The technology for forming the bubbles applies a principle or action based on mixing of a liquid and a gas. Since such a principle is well known to those skilled in the art, a description thereof will be omitted, and the structure and features of the apparatus according to the present invention will be described in detail below with reference to the drawings with specific examples.

  FIG. 1 is an exploded view of a push pump 100 according to the present invention. As disclosed in the drawings, the pressing head unit 1, the coupling cap 2, the filter unit 3, the air valve 4, the support column member 5, the piston unit 6, the coupling rod set 7, the elastic body 8, It consists of a cylinder part 9 and a valve part 10.

  A nozzle 11 for generating bubbles is formed in the pressing head 1. The connection cap 2 is connected to the pressing head unit 1. Further, it is screwed into the inner wall of the connecting cap 2. The thread on the inner wall of the coupling cap 2 corresponds to the thread that is screwed into the mouth of the container to which the push pump 100 is attached.

  The filter unit 3 includes a first filtration net 32 and a second filtration net 33. The air valve 4 has a first annular groove 41 and a second annular groove 42 formed on the outer periphery, and the first filtration net 32 is fitted to one end, and the one end is fitted to the pressing head unit 1. At the other end of the air valve 4. The second filtration net 33 is fitted as disclosed in the cross-sectional view of FIG.

  Alternatively, as disclosed in FIG. 1, the filter unit 3 may further include a hollow tube 31 having a first end 311 and a second end 312. In this case, the first filtration net is provided at the first end 311 of the 32 hollow tube 31, the second filtration net 33 is provided at the second end 312, and the hollow tube 31 is provided in the air valve 4. Such a modification of the embodiment will be described later.

  The support column member 5 is a hollow tube, and includes a first column 51, a second column 52, a flange 53, and a stop groove 54.

  FIG. 2 is a partial cross-sectional view of an embodiment of a push pump 100 according to the present invention. As disclosed in the drawings, the first column body 51 is fitted into the second annular groove 42 of the air valve 4, and the first chamber 40 is formed in the second annular groove 42. The first column 51 has a diameter shorter than the inner diameter of the second annular groove 42. Therefore, the first gap 50 is formed between the outer peripheral surface of the first column 51 and the second annular groove 42.

  The piston portion 6 includes a first piston 61 that is a hollow annular body and a second piston 62. The first piston 61 is formed with a third annular groove 611 and a fourth annular groove 612, and further includes an airtight ring 613. A gas entry groove 411 is formed between the upper end 6121 of the fourth annular groove 612 and the inner wall of the first annular groove 41 of the air valve 4. Further, a second gap 60 is formed between the lower end 6122 of the fourth annular groove 612 and the flange portion 53 of the support column member 5. The airtight ring 613 is slidable and is provided so as to abut against the abutment groove 54 of the support column member 5.

  The second piston 62 is formed with a fifth annular groove 621 and a sixth annular groove 622. The second piston has a sixth annular groove 622 connected to the second column body 52.

  The connecting rod set 7 is slidably inserted into the support column member 5. The connecting rod set 7 includes a first casing 71, a second casing 72, and an engaging portion 73. The first casing 71 is connected to the second casing 72 by the engaging portion 73. A stop portion 711 is formed at one end of the first housing 71, and the stop portion 711 stops against the inner wall of the first column body 51 of the support column member 5.

  The second casing 72 is slidable in the second piston 62 and penetrates through the second piston 62 to reach the hollow portion of the second column body 52 of the sixth annular groove 622 and the support column member 5. Provide as follows.

  The connecting rod set 7 has a diameter shorter than the inner diameter of the second column body 52. Therefore, the third gap 70 is formed between the connecting rod set 7 and the inner wall of the second pillar body 52.

  FIG. 3 is a partial cross-sectional view of the push pump 100 according to the present invention. As disclosed in the drawings, the elastic body 8 is fitted on the outer periphery of the second columnar body 52. In this case, one end of the elastic body 8 comes into contact with the flange portion 53 of the support column member 5.

  The cylinder part 9 is connected to the connection cap 2. The cylinder portion 9 includes a first cylinder 91 and a second cylinder 92, and a donut-shaped annular tip 93 is provided between the first cylinder 91 and the second cylinder 92. The other end of the elastic body 8 comes into contact with the annular tip 93.

  The first cylinder 91 is larger than the second cylinder 92, and a portion where the third annular groove 611 of the first piston 61 is in contact with the inner wall of the first cylinder 91, and the first piston 61 reciprocates. Therefore, a sealed second chamber 80 is formed in the first cylinder 91.

  The inner wall of the second cylinder 92 is in contact with the portion of the second piston 62 where the fifth annular groove 621 is formed. Therefore, a sealed third chamber 90 is formed in the second cylinder 92.

  The valve unit 10 is provided so as to abut one end forming the passage port 921 of the second cylinder 92. Further, the passage port 921 is provided with a suction pipe 923 for pumping a solution stored in a container (not shown). The valve portion 10 in the embodiment is formed in a spiral shape, and opens and closes the passage port 921 of the cylinder portion 9 by reciprocating.

  The second cylinder 92 may be further provided with a valve portion 10 by forming a suction path 922. The valve portion 10 has a spiral portion 101 having elasticity, and a stopper portion 102 that abuts the passage port 921 is formed at one end on the passage port 921 side. A passage hole 103 is formed at the upper end of the second cylinder 92.

  FIG. 4 is an explanatory view showing the operation of the push pump 100 according to the present invention. When the pressing head portion 1 is pressed downward, the air valve 4 and the support column member 5 move downward in conjunction with each other. However, the 1st piston 61 and the 2nd piston 62 are the 3rd annular groove 611 of the 1st piston 61, and the 5th annular groove 621 of the 2nd piston 62 is the wall surface of the inner wall of the 1st cylinder 91 and the 2nd cylinder 92, respectively. Because it is affected by frictional force, it remains stationary without moving.

  In this case, the second casing 72 of the connecting casing set 7 prevents the first casing 71 from continuing to move downward, and the stopper 711 of the first casing 71 moves from the inner wall of the first column 51. The fourth gap 7110 is formed away. For this reason, the solution in the third chamber 90 flows into the first chamber 40 through the third gap 70 and the fourth gap 7110.

  Further, the gas entry groove 411 of the air valve 4 is gradually closed, and the first airtight ring 613 is gradually separated from the contact groove 54 of the support column member 5, so that the gas in the second chamber 80 of the cylinder portion 9 is applied. It flows toward the first gap 50 via the stop groove 54 and further flows into the first chamber 40.

  As a result of the operation described above, the gas flows downward into the first chamber 40 with the pressing pressure of the pressing head 1 to mix with the solution, and the gas-liquid mixture further passes through the second filtration net 33 and the first filtration net of the filter unit 3. After passing through the nozzle 32, it becomes foamy and is discharged from the nozzle 11 of the pressing head 1.

  When the pressure applied to the pressure head 1 is released, the support column member 5 and the air valve 4 are moved upward by the urging force of the elastic body 8. In this case, the third annular groove 611 of the first piston 61 and the fifth annular groove 621 of the second piston 62 do not move under the action of the frictional forces of the inner walls of the first cylinder 91 and the second cylinder 92, respectively. Stay stationary.

  In this case, the first casing 71 of the second casing 72 in the connecting casing set 7 is prevented from continuously moving up. For this reason, the stopper 711 of the first housing 71 is in contact with the inner wall of the first column 51. Accordingly, the fourth gap 7110 is closed, the gas entry groove 411 of the air valve 4 is gradually opened, and the airtight ring 613 is gradually abutted against the abutment groove 54 of the support column member 5 and sealed.

  When the support column member 5 moves up without stopping, the first piston 61, the connecting rod set 7, and the second piston 62 move up together, and the volumes of the second chamber 80 and the third chamber 90 are increased. Increase. For this reason, external air is sucked from the gas entrance groove 411 and flows into the second chamber 80, and the solution is also sucked into the third chamber 90 to prepare for the next operation of the pump.

  The point to be noted here is that the elastic body 8 is inserted into the outer wall of the second columnar body 52 in the present invention. With this configuration, since the solution passes through the path formed in the second columnar body 52, it is possible to prevent the chemical substance contained in the solution from contacting the elastic body 8. For this reason, not only can the corrosion of the elastic body 8 be prevented, but also the solution can be prevented from being contaminated by the elastic body 8.

  Further, in the embodiment as disclosed in FIGS. 5 and 5A, the first filtration net 32 or the second filtration net 33 is manufactured by injection molding and is formed so as to be locked to both ends of the hollow tube body. . For this reason, the problem of falling off easily in the normal process of processing the filtration net can be improved.

  In order to obtain finer bubbles, the mesh 321 of the first filtration net 32 and the second filtration net 33 may be formed in a hexagon. Further, the mesh diameter of the first filtration net 32 is made narrower or equal to the mesh diameter of the second filtration net 33. Further, a bubble buffering space 313 is provided in the hollow tube 31 of the filter unit 3. For this reason, the solution and the gas pass through the second filtration net 33 having a mesh with a wide diameter to form a bubble, receive a buffer when passing through the foam buffer space 313, and have a narrower mesh diameter. Pass through the filtration net 32. Therefore, the bubbles become even finer.

  A point that should be particularly described here is that the first filtration net 32 and the second filtration net 33 can be provided in the air valve 4 as disclosed in FIG. 8. According to such a configuration, the number of members can be reduced. However, when the filter unit 3 includes the hollow tube 31 in the embodiment, the method of providing the first filtration net 32 and the second filtration net 33 in the hollow tube 31 is not limited. For example, as disclosed in FIG. 6, when the first filtration net 32 is provided on the nozzle 11 side at the first end 311 of the hollow tube 31 and the second filtration net 33 is provided at the second end 312, the first filtration is performed. The net 32 is further located at a location close to the nozzle 11. For this reason, the path | route which a bubble flows shortens and generation | occurrence | production of the phenomenon that the time for which a bubble and air contact is prolonged more than needed, and the quantity of a bubble reduces can be reduced. For this reason, the fineness of a bubble can be maintained.

  Alternatively, as disclosed in FIG. 7, the first filtration net 32 may be provided in the middle of the first end 311 of the hollow tube 31, and the second filtration net 33 may be provided in the middle of the second end 312. Good. According to such a configuration, when the solution and gas reach the filter portion from the first chamber 40, the solution and gas first pass through the second filtration net 33 from the second end 312 of the hollow tube 31, and further, Flow from the first end 311 to the nozzle 11. According to such a configuration, the first filtration net 32 is provided at the first end 311 of the hollow tube 31 and the second filtration net 33 is provided at the second end 312. Many types can be formed.

  The above is a preferred embodiment of the present invention, and does not limit the scope of the present invention. Therefore, any modifications, corrections, etc. that can be made by those skilled in the art, which are made within the spirit of the present invention and have an equivalent effect on the present invention, shall belong to the scope of the patent of the present invention. .

DESCRIPTION OF SYMBOLS 1 Pressing pressure head part 10 Valve | bulb part 100 Push type pump 101 Spiral part 102 Stop part 103 Passing hole 11 Nozzle 2 Connection cap 3 Filter part 31 Hollow tube 311 1st end 312 2nd end 313 Foam buffer space 32 1st filtration Net 321 Mesh 33 Second filtration net 4 Air valve 40 First chamber 411 Gas entry groove 41 First annular groove 42 Second annular groove 5 Supporting column member 50 First gap 51 First column 52 Second column 53 Gutter 54 Stop groove 6 Piston part 60 2nd gap 61 1st piston 611 3rd annular groove 612 4th annular groove 613 Airtight ring 6121 Upper end 6122 Lower end 62 2nd piston 621 5th annular groove 622 6th annular groove 7 Connecting rod set 70 Third gap 71 First housing 711 Stopping portion 7110 Fourth gap 72 Second housing 73 Engaging portion 8 Elastic body 80 Second chamber 9 Nda portion 90 third chamber 91 first cylinder 92 a second cylinder 921 passes through port 923 suction pipe 922 suction passage 93 annular tip

Claims (10)

A coupling cap, and a pressure head unit coupled to the coupling cap;
A filter unit comprising a first filtration net and a second filtration net;
A first annular groove and a second annular groove are formed, the first filtration net is fitted to one end, the one end is fitted to the pressing head portion, and the other end is 2 Air valve to fit the filtration net;
A first column body that is inserted into the second annular groove of the air valve to form a first chamber in the second annular groove, and that forms a first gap between the inner wall of the second annular groove; A support column member of a hollow tube formed by the second column body, the flange portion, and the retaining groove;
A third annular groove and a fourth annular groove are formed, and an airtight ring is provided that is slidable and that abuts against the retaining groove of the support column member. The upper end of the fourth annular groove and the air valve A first piston that forms a gas entry groove between the inner wall of the first annular groove and a second gap between the lower end of the fourth annular groove and the flange of the support column member; and A piston portion comprising: 5 annular grooves; and a second piston having a sixth annular groove connected to the second pillar body;
A first housing formed at one end with a locking portion for locking against the inner wall of the first column of the support column member; the sixth annular groove penetrating through the second piston and the first of the support column member; A second housing provided so as to reach the hollow portion of the two- column body , and an engaging portion; the first housing and the second housing are connected via the engaging portion; and A connecting rod set that is slidably inserted into the support column member to form a third gap with the inner wall of the second column body,
An elastic body fitted on the outer periphery of the second column body and having one end abutting against the flange of the support column member;
A first cylinder in which a portion where the third annular groove of the first piston is formed in contact with the inner wall abuts to reciprocate the first piston and a sealed second chamber is formed, and a second cylinder is formed in the inner wall. subjected to reciprocating motion of the second piston fifth annular groove formed portion of the piston abuts, and with sealed third chamber is formed, and a second cylinder passage opening is formed on the lower end the comprising, a cylinder unit comprising an annular chip on the inner bottom of the first cylinder in the vicinity of the interface with the first cylinder and the second cylinder and the other end of the elastic member abuts stop,
And a valve portion provided so as to abut one end forming a passage port of the second cylinder. The valve unit includes a push pump according to claim 1 which have a helical portion comprising a resilient, with a reciprocating motion in the vertical direction, characterized in that for opening and closing the passage port.   A suction path is formed in the second cylinder and the valve portion is provided in the suction path. The valve portion has a spiral portion having elasticity, and a stopper portion that contacts the passage opening at one end. The push pump according to claim 1, wherein the push pump is formed. 2. The push pump according to claim 1, wherein the filter portion includes a hollow tube having a first end and a second end, and the filter portion is provided in the air valve via the hollow tube.   2. The push pump according to claim 1, wherein the diameter of the mesh of the first filtration net of the filter portion is narrower or equal to the diameter of the mesh of the second filtration net.   The push pump according to claim 1, wherein a bubble buffering space is provided in a hollow tube of the filter portion.   The push pump according to claim 1, wherein the first filtration net or the second filtration net is formed by injection molding.   2. The push pump according to claim 1, wherein a mesh of the first filtration net and / or the second filtration net is formed in a hexagonal shape.   2. The push pump according to claim 1, wherein a thread corresponding to a thread threaded into a mouth of a container to which the push pump is attached is formed on an inner wall of the connection cap.   The push pump according to claim 1, wherein a suction pipe is provided at a passage port of the second cylinder.

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