JP4093354B2 - Liquid jet pump - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid jet pump.
[0002]
[Prior art]
As a liquid ejection pump, it is mounted on the container body by fitting the mounting cap to the mouth and neck of the container body, and a jet with a nozzle on the upper end of the stem that protrudes from the upper end of the mounting cap so that it can be pushed down in an upward biased state. There is known an operation jetting portion having a head fitted thereto, configured to suck up the liquid in the container body mounted by the vertical movement of the operation jetting portion and to eject the liquid from the nozzle outlet.
[0003]
[Problems to be solved by the invention]
This type of pump may cause inconveniences such as the sprayed liquid splashing in different directions depending on the type of stored liquid, or the contents dripping from the tip and soiling the nearby floor.
[0004]
These main factors are that the liquid is hardened at the nozzle tip. In order to prevent this, conventionally, a cap is detachably attached to the nozzle tip. However, in such a pump, the removed cap must be placed or held in the hand, and the pump operation is troublesome and the removed cap may be lost. In view of such a situation, there has been proposed one in which a band integrally projecting from the ejection head is connected to a cap and the removed cap can be maintained in the ejection head via the band.
[0005]
In this case, there is no risk of the cap ejecting, and there is no inconvenience that it must be in hand, but the strip is flexible and deformable, so the removed cap is unstable. This is inconvenient for the pump operation. In addition, there is a drawback in that it is difficult to mount a cap whose movement is limited by a belt even when the cap is mounted.
[0006]
The present invention has been made in view of the above points, and can easily open and close the jet nozzle, there is no risk of loss of the lid, and it is not necessary to hold it in the hand, and is extremely easy to handle. Excellent liquid that can prevent solidification, etc. of the liquid in the nozzle, and can prevent inconveniences such as the sprayed liquid splashing in an undesired direction or the liquid remaining in the nozzle dripping from the tip after use A jet pump is proposed.
[0007]
[Means for Solving the Problems]
The first means is configured as follows. That is, the suction nozzle A fitted to the container body 2 with the mounting cap 3 fitted to the neck 6 and the cylindrical nozzle 16 at the upper end of the stem 15 projecting from the suction section A so as to be pushed upward. And a liquid jet pump configured to suck up the liquid in the container body mounted by the vertical movement of the hydraulic jet part and eject the liquid from the jet outlet 25 of the nozzle 16. In this case, a rotating plate 24 having one end pivotably attached to the upper surface of the ejection head 17 at the nozzle base end portion is extended on the nozzle 16 and the nozzle 16 ejects from the other end of the rotating plate 24. the lid 27 formed by vertically the closure plate 26 which is openably closing the outlet 25 is provided, and, ing provided with a rotation preventing mechanism 33 for preventing rotation of the actuating ejecting part B.
[0008]
The second means is configured as follows. That is, in the first means, the rotating plate 24 is pivotally mounted at one end so as to be horizontally rotatable in a fan-shaped recess 22 formed in the front portion of the top wall 20 of the ejection head 17. The rotating plate 24 is configured to be brought into contact with and locked to one side surface of the fan-shaped recess 22 when the lid 27 is rotated .
[0009]
The third means was configured as follows. That is, in the first means, a locking mechanism 30 that temporarily fixes the lid 27 to the ejection head 17 between the lid 27 and the ejection head 17 when the ejection port 25 is closed. Was provided .
[0010]
The fourth means is configured as follows. That is, in the first means, the rotation preventing mechanism 33 is configured so that the peripheral ribs of the vertical ribs 33a vertically provided on the lower periphery of the stem 15 in the circumferential direction and the lower periphery of the stem 15 in the suction portion A are opposed to each other. Ru anti-rotation mechanism der comprising a longitudinal rib 33b which is circumferentially number Tate設the surface engaged with each other.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
The liquid ejection pump 1 of the present invention is used by being mounted on a container body 2 and includes a suction part A and an operation ejection part B.
[0013]
The suction part A is for sucking up the liquid in the mounted container body 2, and if this is a form having a cylinder fixed in a state where the lower end is suspended in the container body 2 by a mounting cap, this kind of conventional one is used. The form of the suction part in the pump can be adopted.
[0014]
In the illustrated example, the suction portion A includes a mounting cap 3, a cylinder 4, and a ring member 5. The mounting cap 3 is configured by extending a flange-shaped top plate 8 inwardly from the upper end edge of the peripheral wall 7 screwed to the outer periphery of the mouth neck portion 6 of the container body 2. The cylinder 4 has a bottomed cylindrical shape with an open upper end, and a flange 9 projecting from the upper part of the outer periphery is placed on the upper surface of the mouth-and-neck portion 6 via a packing 10, and the upper surface is the top plate 8 of the mounting cap 3. Is fixed to the container body 2 in a state where the lower end is suspended in the container body 2. A known suction valve (not shown) is provided at the inner bottom of the cylinder 4 and a suction pipe 11 having an upper end fitted to the lower end of the cylinder is suspended downward.
[0015]
The ring member 5 has a ring-shaped top plate 13 extending outward from the upper end of the inner cylinder 12 fitted to the inner periphery of the upper end of the cylinder 4, and the outer cylinder 14 suspended from the outer periphery of the top plate is connected to the upper end of the cylinder 4. It is configured to fit on the outer periphery. Further, a screw thread is provided around the inner periphery of the inner cylinder 12, and is configured to be screwable with a screw provided on the outer periphery of a vertical cylinder (to be described later) of the ejection head 17, as shown in FIG. It is configured so that B can be locked in a depressed state.
[0016]
The working ejection part B includes a stem 15 projecting from the suction part A so as to be able to be pushed down in an upward biased state, and an ejection head 17 with a cylindrical nozzle 16 fitted to the upper end of the stem 15 and is mounted by moving up and down. As long as the liquid in the container body 2 is constructed so as to be sucked up into the suction part A and ejected from the ejection port 25 of the nozzle 16, various specific structures can be employed. In the illustrated example, a piston (not shown) slidably fitted to the inner periphery of the cylinder 4 is linked to the lower end of the outer periphery of the stem 15, and a discharge valve 18 is provided in the upper part of the stem 15.
[0017]
The ejection head is formed by projecting a cylindrical nozzle communicating with the inside of the stem 15 to the front. In the illustrated example, the ejection head 17 includes a vertical cylinder 19 fitted to the upper end of the stem 15 at the center of the rear surface of the top wall 20. The peripheral wall 21 is vertically suspended from the peripheral edge of the top wall 20 and the nozzle 16 having a base end opened at the upper part of the vertical cylinder 19 is formed so as to protrude outward through the circumferential wall 21. . A fan-like recess 22 that opens forward is formed in the nozzle base end portion of the top wall 20, and a pivotal recess 23 is provided at a predetermined position in the center.
[0018]
In the present invention, in such a liquid ejection pump 1, a rotating plate 24 having one end pivotally attached to the upper surface of the ejection head 17 at the nozzle base end portion so as to be horizontally rotatable is extended on the nozzle 16 and rotated. A lid body 27 is provided in which a closing plate 26 is closed from the other end of the moving plate 24 so that the nozzle 25 of the nozzle 16 can be opened and closed.
[0019]
In the illustrated example, the lid body 27 has a band-plate-like shape that protrudes from the bottom surface of the base end portion with a pivoting projection 28 pivoted to the pivoting recess 23 and extends forward along the top surface of the nozzle 16. A closing plate 26 that has a rotating plate 24 and that closes the ejection port 25 so as to be openable and closable is provided below the tip edge of the rotating plate 24. The rotating plate 24 has its tip end inclined downward in accordance with the shape of the nozzle 16, and the closing plate 26 hangs obliquely rearward in accordance with the shape of the opening end face of the jet outlet 25. Further, a knob 29 is integrally projected from the center of the front surface of the closing plate 26 to the center of the front end of the upper surface of the rotating plate 24. For example, if the knob 29 is grasped and rotated in the left-right direction, the jet nozzle 25 opens. Further, the side surface of the rotating plate 24 of the lid body 27 that is rotated at this time is configured to abut against and engage with one side surface of the fan-shaped recess 22 to prevent further rotation. Note that such a fan-shaped recess 22 is not necessarily provided.
[0020]
Further, in the present invention, a locking mechanism 30 may be provided between the lid 27 and the ejection head 17. The locking mechanism 30 can adopt various forms as long as the lid 27 can be temporarily fixed to the ejection head 17 in a closed state of the ejection port 25, but the engagement between the concave portion and the convex portion can be adopted. The locking of the lid body to the ejection head caused by the combination can be adopted as a basic configuration. The illustrated example shows an example of a locking mechanism 30. As shown in FIG. 5, an engaging protrusion 31 is provided on the rear end edge of the rotating plate 24, and a fan-shaped recess 22 facing the engaging protrusion 31 is provided. A pair of locking projections 32, 32 are provided on the inner surface of the ridge, and the engagement projection 31 is configured to be able to get over and engage in a recess between the locking projections 32. For example, the grip piece 29 is grasped. Although the locking mechanism 30 is easily released by rotating the lid 27, it is configured to prevent the lid 27 from being inadvertently detached and opening the jet outlet 25 by a small external force.
[0021]
In the present invention, in addition to the structure of the lid body 27, a rotation preventing mechanism 33 for preventing the rotation of the operation ejection portion B is provided. By providing this anti-rotation mechanism 33, for example, when the lid 27 is rotated from the closed state of the ejection port 25 to the open state, the operation ejection portion B is prevented from rotating relative to the suction portion A. is doing. If the operation ejection part B is pivoted with respect to the suction part A when the lid 27 is pivoted, it becomes difficult for the lid 27 and the nozzle 16 to pivot simultaneously to open the ejection port 25. . In particular, when the locking mechanism 30 is provided, the lid 27 can be more reliably rotated from the nozzle 16 by the rotation prevention mechanism.
[0022]
As the anti-rotation mechanism 33, any structure can be used as long as the operation ejection portion B can be pushed in and the rotation can be prevented. However, in the illustrated example, a large number of longitudinal ribs 33a provided vertically in the circumferential lower portion of the stem 15 are provided. A plurality of longitudinal ribs 33b provided in the circumferential direction on the peripheral surface of the suction portion A facing the lower portion of the outer periphery of the stem are engaged with each other. More specifically, as shown in an enlarged view in FIG. 6, a large number of circumferential ribs 33a are provided vertically at the lower end of the outer periphery of the stem 15, and the lower portion of the outer periphery of the stem 15 in the suction portion A is provided. A large number of circumferential ribs 33b are vertically provided at the lower end of the inner circumferential surface of the inner cylinder 12 of the ring member 5 which is the opposed circumferential surface, and the stem 15 can be pushed in by engaging these longitudinal ribs 33a and 33b with each other. However, the rotation is impossible.
[0023]
In the liquid jet pump 1 configured as described above, when the knob 29 is grasped and rotated from the state shown in FIG. At this time, when the rotating plate 24 abuts on one side surface of the fan-shaped concave portion 22, the lid 27 can be kept at an appropriate rotating angle without further rotating. Next, the working jet B is moved up and down to suck the liquid in the container into the cylinder by the action of the built-in pump mechanism, and the liquid in the cylinder 4 is jetted from the jet outlet 25 of the nozzle 16. After use, the lid 27 is rotated again and the ejection port 25 is closed by the closing plate 26. At this time, the engaging protrusion 31 is engaged between the locking protrusions 32 and 32 so that the closed state is stably maintained. maintain.
[0024]
Each of the above members can be formed mainly using a synthetic resin, and can be formed using an elastomer, a metal, or the like as required.
[0025]
【The invention's effect】
As described above, the liquid jet pump according to the present invention has the above-described configuration, so that the jet outlet is closed by the lid when not in use. Therefore, the liquid in the nozzle 16 is dried and solidified, or from the tip of the nozzle. Inconveniences such as dripping and solidifying the liquid in a stalactite shape can be prevented, and as a result, inconveniences such as the spray liquid splashing in the opposite direction or dripping from the nozzle tip can be prevented. In addition, at the time of use, the spout can be easily opened simply by rotating the lid 27, and the rotation can be reliably and easily performed by the presence of the rotation prevention mechanism 33. Further, since the lid 27 that has been rotated can be a rigid one, it does not hinder the liquid ejection by hanging around.
[0026]
Further, the pivoting portion of the rotating plate 24 is provided in a fan-shaped recess 22 formed in the front portion of the top wall 20 of the ejection head 17, and the rotating plate 24 is fan-shaped when the lid 27 is rotated. In the case where the lid 22 is configured to be in contact with and locked to one side surface, the lid body does not rotate meaninglessly, and the rotation to the position where it does not get in the way during ejection is only a hand touch. There is a convenience that can be done.
[0027]
Further, between the lid body 27 and the ejection head 17, there is provided a locking mechanism 30 for temporarily securing the lid body 27 to the ejection head 17 with the ejection port 25 closed. It is possible to prevent inconveniences such as inadvertently opening the jet port due to external force when not in use, and to prevent storage or the like without recognizing the state where the jet port remains open.
[0028]
In addition, a large number of longitudinal ribs 33a provided in the circumferential lower portion of the stem 15 are engaged with a large number of longitudinal ribs 33b provided in the circumferential direction opposite to the lower peripheral portion of the stem in the suction portion A. With the anti-rotation mechanism 33, the entire structure can be compactly formed without requiring a special space for the anti-rotation mechanism, and the anti-rotation mechanism can be hidden from the outside so that it has a good appearance. There are advantages such as being able to maintain.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view showing an embodiment of the present invention.
FIG. 2 is a partially cutaway side view showing a state in which an operation ejection part of the embodiment is pushed down and locked.
FIG. 3 is a perspective view of the same embodiment.
FIG. 4 is a plan view of the same embodiment.
FIG. 5 is an enlarged plan view showing an example of a locking mechanism of the same embodiment.
FIG. 6 is an enlarged cross-sectional view of a main part of the same embodiment.
[Explanation of symbols]
2 ... container body, 3 ... mounting cap, 4 ... cylinder, 5 ... ring member,
6 ... neck and neck, 15 ... stem, 16 ... nozzle, 17 ... ejection head, 19 ... vertical cylinder,
20 ... Top wall of jet head, 22 ... Fan-shaped recess, 24 ... Rotating plate, 25 ... Jet port,
26 ... Closing plate, 27 ... Lid, 30 ... Locking mechanism, 33 ... Anti-rotation mechanism,
33a, 33b ... vertical ribs, A ... suction part, B ... working ejection part

Claims (2)

A suction part A fitted to the container body 2 with the mounting cap 3 fitted to the mouth / neck part 6, and a jet with a cylindrical nozzle 16 on the upper end of the stem 15 protruding so as to be able to be pushed down from the suction part A in an upward biased state. In a liquid jet pump comprising a working jet part B to which a head 17 is fitted, and configured to suck up the liquid in the mounted container body by the vertical movement of the working jet part and eject it from the jet outlet 25 of the nozzle 16 In addition, a rotating plate 24 having one end pivotally mounted in a fan-shaped recess 22 recessed in the front portion of the top wall 20 of the ejection head 17 so as to be horizontally rotatable is extended on the nozzle 16 , and the rotating plate 24 the lid 27 is formed by vertically the closure plate 26 which is openably closing the spout 25 than the other end the nozzle 16 is provided, when obtained by rotating the lid 27 pivot plate 24 of the fan-shaped recess 22 It is configured to be abutted and locked to one side surface, and is ejected by engagement of the concave portion and the convex portion on the rear end edge of the rotating plate 24 and the rear surface of the fan-shaped concave portion 22. A locking mechanism 30 for temporarily fixing the lid 27 to the ejection head 17 in a closed state of the opening 25 is provided, and an anti-rotation mechanism 33 for preventing the rotation of the working ejection part B is provided. And liquid jet pump. Anti-rotation mechanism 33 But the stem 15 Longitudinal ribs in the circumferential direction 33a And stem in the suction part A 15 Longitudinal ribs vertically provided on the circumferential surface facing the lower part of the outer circumference 33b The liquid jet pump according to claim 1, wherein the liquid jet pump is an anti-rotation mechanism that is engaged with each other.

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