Vertical pump unit for liquid storage container

Abstract

The present application provides a pump unit capable of discharging liquid contents stored in a container to the outside by pressing two left and right levers. Specifically, it comprises: a hydraulic column that sucks up liquid contents; a pressing head connected to the hydraulic column; a discharge nozzle formed on the upper part of the pressing head; a cylinder that stores the pressing head in its internal space; and two left and right pressing levers hingedly connected to the upper part of the cylinder. The two pressing levers and the pressing head are respectively connected by two connecting arms, one end of the connecting arm and the pressing lever form a first movable part, and the other end of the connecting arm and the pressing head form a second movable part.

Description

Technical Field

[0001] This invention relates to a pump unit that allows a user to expel liquid contents stored in a container to the outside by pressing two levers on the left and right. Background Technology

[0002] Previously, it was well known that a pump unit mounted on the container body was used to expel liquid substances contained inside the container to the outside. A typical pump unit involves a hydraulic column that descends from a mounting sleeve fitted onto the neck of the container into the container, and upward force is applied from inside the hydraulic column to raise a working part. The working part has a downward pressure head with a nozzle at its upper end, and by pressing down the downward pressure head, the liquid contained inside the container is drawn up and expelled from the nozzle.

[0003] When using such an existing pump unit to expel liquid from the container to the outside, it is necessary to confirm the direction of the nozzle and press down the pump head in the direction you want to expel the liquid. However, the problem is that people with poor eyesight or weak fingers may find it difficult to perform these operations.

[0004] In response to the above problems, Japanese Patent Application Publication No. 2001-158462 (Patent Document 1) and Japanese Patent Application Publication No. 2007-168864 (Patent Document 2) disclose a liquid dispensing pump unit that utilizes the principle of leverage and can dispense liquid with a small amount of force by gripping it with multiple fingers, and can also adjust the dispensing position.

[0005] However, since the invention described in Patent Document 1 is specifically designed for dispensing into the palm, it cannot be used when dispensing into objects other than the palm. Furthermore, because the dispensing and operating parts extend laterally, it is difficult to achieve a compact design. In addition, since the invention in Patent Document 2 dispenses liquid using pressure from the left and right directions, a special shape is required on the container side to form a guide slope, which makes it unsuitable for use with a wide variety of readily available containers.

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2001-158462

[0008] Patent Document 2: Japanese Patent Application Publication No. 2007-168864 Summary of the Invention

[0009] The present invention solves the problems of the prior art. The technical problem to be solved is to provide a vertical pump unit that is easy to know the discharge direction, can be operated with less force, is not limited to the place where the discharge object is located, is compact and can be used on a variety of ready-made containers.

[0010] To achieve the above objectives, the present invention provides a vertical pump unit for a liquid storage container, which is installed on the liquid storage container and used to discharge the liquid contents outside the container, characterized in that...

[0011] The vertical pump unit includes:

[0012] A hydraulic column sucks up the liquid contents; a lower pressure head is connected to the hydraulic column; a discharge nozzle is formed on the upper part of the lower pressure head; a cylinder houses the lower pressure head within its internal space; and two left and right pressing rods are disposed on the outside of the cylinder and hinged to the upper part of the cylinder.

[0013] The two pressing rods and the lower pressing head are respectively connected by two connecting arms.

[0014] One end of the connecting arm and the pressing rod form a first movable part.

[0015] The other end of the connecting arm forms a second movable part with the pressing head.

[0016] The pressing rod is semi-cylindrical in shape. In its natural state, the two pressing rods open in a figure-eight shape when viewed from the side, and when closed by the user's pressing force, they form a cylindrical shape that surrounds the cylinder.

[0017] According to the present invention having the above-described configuration, by grasping and holding the left and right pressing levers by hand, the force is converted into a downward force pressing down on the lower pressing head via the connecting arm, thereby enabling the contents of the container to be ejected from the ejection nozzle. That is, by applying the lever principle, the contents can be ejected with a smaller force, and by making the ejection nozzle protrude from the lower pressing head, precise (pin point) ejection is facilitated. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the pump unit in its natural state according to an embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional view of the pump unit in its natural state according to an embodiment of the present invention.

[0020] Figure 3 This is a perspective view of the pump unit in the discharge state according to an embodiment of the present invention.

[0021] Figure 4 This is a cross-sectional view of the pump unit in the discharge state according to an embodiment of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the first movable shaft.

[0023] Figure 6 This is a three-dimensional structural diagram of the second movable shaft.

[0024] Figure 7 This is a three-dimensional structural diagram of the hinge connection.

[0025] Figure 8 It is a mechanical diagram.

[0026] Symbol Explanation

[0027] 1-Vertical pump unit; 2-Cylinder; 3-Pressing rod; 4-First movable part; 5-Second movable part; 6-Connecting arm; 7-Hinge connection part; 8-Container mounting part; 9-Hydraulic column; 10-Pressing head; 11-Small cylindrical body; 12-Discharge nozzle; 13, 14, 15-Elongated hole. Detailed Implementation

[0028] The embodiments of the present invention will now be described in detail.

[0029] Figure 1 This is a perspective view showing the natural state of the pump unit according to an embodiment of the present invention. Figure 2 This is a cross-sectional view showing its internal structure. The pump unit 1 has: a hydraulic column 9 for sucking up liquid contents; a lower pressure head 10 connected to the hydraulic column 9; a discharge nozzle 12 formed on the upper part of the lower pressure head 10; a cylinder 2 that houses the lower pressure head 10 in its internal space; and two left and right pressing rods 3 disposed on the outside of the cylinder 2 and hinged to the upper part of the cylinder 2.

[0030] The two left and right pressing rods 3 are semi-cylindrical in shape and integrally molded from resin. They are connected by a thin-plate hinge through a hinge connection part 7 fixed to the upper part (top) of the cylinder body 2, and open in a V-shape in their natural state. In addition, the two left and right pressing rods 3 and the lower pressing head 10 are respectively connected by two connecting arms 6. One end of the connecting arm 6 forms a first movable part 4 between the pressing rod 3 and the other end of the connecting arm 6 forms a second movable part 5 between the lower pressing head 10.

[0031] The pump that moves the lower head 10 up and down is a well-known structure and will not be described in detail here. In addition, since the lower head 10 is always extended upwards by force, as described above, the pressing rod 3, which is connected to the lower head 10 via the connecting arm 6, is opened to the left and right in a V-shape in its natural state by force.

[0032] Each as Figure 6 (a)(b) Figure 7As shown in (a) and (b), the first movable part 4 and the second movable part 5 can be connected by a hinge using a movable shaft. Alternatively, they can be connected by a thin-sheet hinge that integrally molds each component with resin. Furthermore, the two left and right pressing rods 3 are not limited to being integrally molded with resin; they can also be separately molded and then hinged together using a movable shaft. In short, the first movable part 4 and the second movable part 5 can be used to freely and movably connect the pressing rod 3, the pressing head 10, and the connecting arm 6 using known methods.

[0033] Figure 3 This is a perspective view showing the state after the push rod 3 of pump unit 1 is closed (the state of discharging the contents to the maximum extent). Figure 4 This is a cross-sectional view showing the internal structure at this time. When the two push rods 3 are closed along the cylinder 2 due to the user's pressing force, the two push rods 3 are cylindrical. During the closing action of the push rods 3, the connecting arm 6 presses the push head 10 downward through the second movable part, thereby discharging the liquid contained in the container from the dispensing nozzle 12.

[0034] A threaded container mounting part 8 is formed on the lower part of the cylinder 2 for mounting onto a liquid storage container, thereby allowing mounting onto various ready-made containers. This container mounting part 8 is configured to have a larger diameter that protrudes radially beyond the upper side of the cylinder 2, and... Figure 3 As shown, when the two pressing rods 3 are closed along the small diameter portion on the upper side of the cylinder 2, it becomes a cylinder with the same diameter as the cylinder presented by the two pressing rods 3.

[0035] Figure 8 This diagram illustrates the mechanical principle of levers used in this invention. The hinge connection 7 represents the fulcrum, the first movable part 4 represents the point of action, and the top side of the pressing rod 3 represents the point of force application. Figure 8 The left half of the figure is a cross-sectional view of the pressing lever 3 in the closed state, and the right half is a cross-sectional view of the pressing lever 3 in the open, natural state. As shown in the figure, the pressing head 10 can move up and down in the stroke S by pressing the pressing lever 3. This stroke S can be appropriately adjusted according to the length L of the pressing lever 3, the setting position of the first movable part and the second movable part, and the angle θ between the pressing head and the pressing lever in the natural state.

[0036] In addition, when the pressing action of the pressing lever 3 begins, the downward movement of the pressing head 10 will also begin in conjunction with the pressing action, and the contents will also begin to be ejected from the ejection nozzle 12. Therefore, it is not necessary for the pressing head 10 to descend by a certain stroke S. The user can eject the required amount of contents by pressing the pressing lever 3 within an appropriate range.

[0037] In addition, on the side of the cylinder 2, there are elongated holes 13 and 14 for the connecting arm 6 and the discharge nozzle 12 to move up and down respectively, and an elongated hole 15 for the discharge nozzle 12 to move up and down is also formed on the pressing rod 3.

[0038] Furthermore, although the above embodiments describe a pump that dispenses liquid contained in a container, it could also be a spray pump or a bubble pump.

[0039] According to the present invention as described above, since there are left and right pressing rods and a dispensing nozzle, it is easy to control the dispensing direction. Furthermore, since when the lower half of the left and right pressing rods is grasped and pressed horizontally, the upper and lower pressing heads can be pressed down with a lighter force using the lever principle, and the pressing rods can be held from the left and right, thus enabling a stable dispensing operation.

[0040] Furthermore, by appropriately adjusting the pressing width of the pressing lever, the user can easily adjust the dispensing volume, and compared to typical trigger pumps with the operating part extending forward, the forward extension is smaller, thus achieving a compact design. Moreover, since no special structure is required on the container side, it can be applied to a wide variety of readily available containers.

Claims

1. A vertical pump unit for a liquid storage container, mounted on the liquid storage container for discharging liquid contents outside the container, characterized in that, The vertical pump unit includes: A hydraulic column sucks up the liquid contents; a lower pressure head is connected to the hydraulic column; a discharge nozzle is formed on the upper part of the lower pressure head; a cylinder houses the lower pressure head within its internal space; and two left and right pressing rods are disposed on the outside of the cylinder and hinged to the upper part of the cylinder. The two pressing rods and the lower pressing head are respectively connected by two connecting arms. One end of the connecting arm and the pressing rod form a first movable part. The other end of the connecting arm forms a second movable part with the pressing head. The pressing lever is semi-cylindrical in shape. In its natural state, the two pressing levers open in a V-shape when viewed from the side. When closed by the user's pressing force, they form a cylindrical shape surrounding the cylinder body. An elongated hole is formed on the pressing rod, allowing the ejection nozzle to move up and down. The cylinder has two elongated holes, including the discharge nozzle and the connecting arm, which can move up and down.

2. The vertical pump unit for liquid receiving containers according to claim 1, characterized in that, The two pressing rods on the left and right are connected by a hinge on a movable shaft or by a thin, integrally formed hinge.

3. The vertical pump unit for a liquid receiving container according to claim 1 or 2, characterized in that, The first movable part and the second movable part are connected by a hinge using a movable shaft or by a thin sheet hinge formed integrally.

4. The vertical pump unit for a liquid receiving container according to claim 1 or 2, characterized in that, A container mounting portion for mounting onto the liquid storage container is formed on the lower part of the cylinder.

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