JP2020083425A - Jet pump and jet container - Google Patents

Abstract

To provide a jet pump capable of recognizing that a user has pushed down a spout to a predetermined position.SOLUTION: A jet pump 10 has a cylinder 41 having a space 45 therein for sucking up and storing a fixed amount of a content, a piston 43 whose one end is inserted into the cylinder 41, a spout 30 which is fixed to the other end of the piston 43 and ejects the content extruded from the inside of the cylinder 41 by the displacement of the piston 43 in a direction of compressing the space 45, and a mechanism part that generates a sound when the displacement of one end of the piston 43 in the direction compressing in the cylinder 41 reaches the fixed amount, or causes the displacement of the piston 43 to be non-smooth.SELECTED DRAWING: Figure 2

Description

The present invention relates to an ejection pump that ejects the contents contained in a container.

As an ejection container for ejecting a liquid agent such as shampoo, conditioner, detergent, and medicine, a container having an ejection pump attached to the upper opening of the container is generally used. It is known that the ejection pump includes a direct pressure type and a pressure accumulation type. The ejection pump includes a pipe for sucking up the content in the container, a pump mechanism provided at the upper end of the pipe, and a spout (nozzle) provided at the upper end of the pump mechanism for ejecting the content (for example, Patent Document 1). 2).

The direct pressure type pump mechanism includes a cylinder and a piston, and the content sucked up from the pipe is contained in the cylinder in a fixed amount. Such a pump mechanism is configured such that when a user pushes down the nozzle (when operating), the piston descends in the cylinder, and a valve provided around the piston opens while the piston descends. This causes the contents in the cylinder to be pushed upward through the valve around the piston and ejected from the nozzle. When the user releases the hand, the spring inside the cylinder moves the piston upward (when returning), the valve around the piston closes, and the ball-shaped check valve located at the bottom of the cylinder opens. Contents are sucked up from the pipe and the cylinder is refilled with a certain amount of contents.

The jet pump disclosed in Patent Document 2 is based on the above structure, and further has a whistle provided inside the piston that emits a sound when air passes in order to soften or entertain the user's heart. , Has a structure that emits sound as the piston moves up and down.

Further, in Patent Document 3, a ring member that is rotatable with respect to an adapter that is attached to an opening of a container is provided, and a position where a user can press the nozzle a designated number of times by rotating the ring member (instructed position) There is disclosed a jet pump that can be changed to either a position where the nozzle is locked so as not to be pressed (lock position). When the user rotates the ring member, this ejection pump moves to the designated position or the locked position by causing the protrusion provided on the ring member to be inserted into the concave portion provided on the adapter, resulting in a click feeling. Tell the user.

JP, 2002-370763, A JP, 2002-173166, A JP, 2011-4912, A

In the conventional direct pressure type ejection pump, the amount of the content ejected from the spout depends on the amount by which the user pushes down the spout (that is, the upper end of the piston). Therefore, if the user presses the spout all the way down to the bottom, a certain amount of the content in the cylinder is ejected from the nozzle, but the user only presses the spout halfway, or the amount of depression of the spout is different each time. However, it is difficult to make the ejection amount constant.

Users of conventional jet pumps often use spouts without knowing whether the spout has reached the bottom. For contents such as shampoo that can be used at one time, there is no limit to the amount that can be used at one time. It suffices if it is ejected, and there is no problem in the conventional use method.

However, when using an ejection pump for a drug or the like, the amount of which should be used at one time is determined, a structure that can easily recognize that the spout has been pushed down to the bottom is desired in order to eject a certain amount accurately. ..

Further, if the structure is such that it can be easily recognized that the spout has been pushed down to the lowest position, it will be easy to use even for a visually impaired user.

The jet pump provided with the whistle mechanism described in Patent Document 2 generates sound due to the vertical movement of the spout, and can soften the user's heart, but the spout is pushed down to the bottom. It cannot be recognized.

Further, in the ejection pump described in Patent Document 3, it is possible to let the user know whether the nozzle of the ejection pump is in the designated position or the locked position, but it is recognized that the spout is pushed down to the bottom. I can't let you do it.

An object of the present invention is to provide a jet pump that can recognize that a user has pushed down the spout to a predetermined position.

In order to achieve the above object, the ejection pump of the present invention is a cylinder having a space for sucking up and storing a certain amount of contents therein, a piston having one end inserted into the cylinder, and a piston fixed at the other end. The spout ejects the contents pushed out of the cylinder by the displacement of the piston in the direction of compressing the space, and the sound is generated when the displacement of one end of the piston in the direction of compressing the cylinder reaches a certain amount. Or a mechanism portion that causes non-smoothness in the displacement of the piston.

According to the present invention, the user can recognize that the spout is pushed down to a predetermined position by the sound generated by the engaging portion or the non-smooth tactile sensation.

(A)-(b) The perspective view of the ejection container 20. (A) AA sectional view of the ejection pump 10 of FIG. 1(a), (b) BB sectional view of the ejection pump 10 of FIG. 1(b). (A) The perspective view of the spout 30, (b) The bottom view of the spout 30. The perspective view of the pump mechanism 40. The perspective view of the cap 12. (A)-(b) The elements on larger scale of the ejection pump 10. Sectional drawing which shows the operation example of (a)-(b) ejection pump 10. Sectional drawing which shows the operation example of (a)-(b) ejection pump 10. The side view which shows the spout 30B of a modification.

Hereinafter, the ejection container according to the embodiment of the present invention will be described.

The jet pump of the present embodiment has a cylinder having a space (quantity chamber) for sucking and containing a fixed amount of content (liquid agent) therein, a piston having one end (lower end) inserted into the cylinder, and a spout. .. The spout is fixed to the other end (upper end) of the piston, and ejects the contents pushed out from the inside of the cylinder due to the displacement of the piston in the direction of compressing the constant volume chamber. The ejection pump further has a mechanism portion that generates a sound or causes non-smoothness in the displacement of the piston when the displacement of the lower end of the piston in the direction of compression in the cylinder reaches a certain amount. ing.

Hereinafter, the details of the ejection pump 10 of the present embodiment will be described with reference to the drawings. 1(a), 2(a) and 6(a) show a state in which the spout 30 of the ejection pump 10 is not pressed by the user, and FIG. 1(b), FIG. 2(b) and FIG. FIG. 6B shows a state in which the spout 30 of the ejection pump 10 is pressed by the user.

The ejection pump 10 is attachable to and detachable from the upper portion of the container body 21 that stores the contents, and in the following description, the up-down direction is independent of the direction in which the ejection container 20 is used. The bottom is the lower side, and the side where the ejection pump 10 is attached to the container body 21 is the upper side.

(Overall structure of ejection container 20)
As shown in FIGS. 1A and 1B, the ejection container 20 includes a container body 21 and the ejection pump 10 attached to an opening 22 at an upper portion of the container body 21. The opening 22 is a cylinder provided on the central axis of the container body 21.

The ejection pump 10 includes a pump mechanism 40 that sucks up the content in the container body 21, a spout 30 that is fixed to the upper portion of the pump mechanism 40 and is pressed by the user, and a cap 12 that attaches the ejection pump 10 to the opening 22. The pipe 11 is fixed to the lower end of the pump mechanism 40 and serves as a flow path for sucking up the contents in the container body 21. As shown in FIGS. 2 and 4, the pump mechanism 40 includes a cylinder 41 and a piston 43 inserted in the cylinder 41.

As shown in FIGS. 2 and 3, the spout 30 includes an inner cylinder 33 into which the upper end of the piston 43 is inserted, a disc 31 fixed to the upper surface of the inner cylinder 33, and an outer peripheral end of the disc 31. It has an outer cylinder 32 fixed to the lower surface, and a nozzle 13 penetrating the inner cylinder 33 and the outer cylinder 32 and protruding in a direction orthogonal to the axial direction of the cylinder 41.

As shown in FIG. 2, the pump mechanism 40 further includes an elastic body 44 that urges the lower end of the piston 43 inside the metering chamber 45 in the direction opposite to the direction in which the metering chamber 45 is compressed (upward). ing. The pump mechanism 40 includes a ball-shaped check valve (ball valve) 42 that opens and closes the connection between the pipe 11 and the metering chamber 45, and a reverse valve that opens and closes the connection between the metering chamber 45 and the flow path in the piston 43. And a stop valve 47. The ball valve 42 is arranged below the cylinder 41, and the check valve 47 is arranged around the piston 43.

The ball valve 42 and the check valve 47 are closed when the spout 30 is not pressed by the user (stationary state). When the user pushes down the spout 30, the piston 43 descends in the cylinder 41 and the elastic body 44 is contracted. At this time, since the check valve 47 opens as the piston 43 descends, the content in the fixed amount chamber 45 flows into the piston 43 and is pushed out upward, and is ejected from the nozzle 13 through the inner cylinder 33. .. When the user releases the spout 30, the elastic body 44 extends and pushes up the lower end of the piston 43 to return it. When the piston 43 moves upward, the check valve 47 closes and the ball valve 42 opens, so that the content in the container body 21 is sucked up from the pipe 11 into the metering chamber 45 to fill the metering chamber 45.

The cap 12 is for fixing the cylinder 41 to the container body 21. As shown in FIG. 4, the cap 12 is fixed to the cylinder 41 so as to be rotatable in the circumferential direction, and is erected on the upper portion thereof. It has a cylindrical fixing portion 12a.

The fixed portion 12a is arranged so as to cover the outer circumferences of the cylinder 41 and the piston 43. As shown in FIG. 2, the lower end of the fixed portion 12a is rotatably fixed by being inserted into the cylinder 41 from the upper end of the cylinder 41, and the piston 43 is vertically moved at the lower end of the fixed portion 12a in the cylinder 41. Holds possible.

Further, in the present embodiment, a mechanism is provided on the side of the spout 30 and the side of the pump mechanism 40, which generate sound or cause non-smoothness of displacement of the piston by engaging with each other at a predetermined position when the spout 30 is pressed. Has been. Note that the non-smoothness referred to here means that the user's hand pressing the spout 30 is impacted, vibrates, or the movement of the piston 43 becomes heavy.

A mechanism of producing sound will be specifically described. First, as a mechanism on the side of the spout 30, in the space between the inner cylinder 33 and the outer cylinder 32 of the spout 30, as shown in FIG. 3, an engaging portion 30a extends along the concentric circles of the inner cylinder 33 and the outer cylinder 32. Are arranged as follows. The diameters of the concentric circles of the inner cylinder 33 and the outer cylinder 32 arranged along the engagement portion 30a are slightly larger than the diameter of the cylindrical fixing portion 12a (FIG. 4) of the cap 12. Three engaging portions 30a are arranged on the lower surface of the circular plate 31, and have a plate shape curved along the concentric circles of the inner cylinder 33 and the outer cylinder 32. Each engaging portion 30a has a convex portion 30b that engages with a mechanism on the side of the pump mechanism 40 described later when the spout 30 is pressed, and the longitudinal direction of each convex portion 30b is the circumference of the inner wall of the engaging portion 30a. Curved along the direction. The convex portions 30b are provided at the same height as the inner peripheral surface (the surface facing the fixed portion 12a) of each engaging portion 30a.

On the other hand, as a mechanism on the side of the cap 12, as shown in FIG. 5, an engaging portion 12c having a concave shape is provided on the upper end of the outer peripheral surface of the fixing portion 12a, and a convex portion is provided on the upper portion of the engaging portion 12c. The portion 12b is provided over the entire circumference of the fixed portion 12a. When the spout 30 is pushed down and the lower end of the piston 43 is displaced (moved down) by a certain amount in the direction in which it is compressed in the cylinder 41, as shown in FIG. 6B, the protrusion 30b of the engaging portion 30a of the spout 30 is , Reaches the upper end of the outer peripheral surface of the fixed portion 12a, gets over the convex portion 12b, and engages with the concave engaging portion 12c.

The distance between the convex portion 30b of the ejection pump 10 and the concave engaging portion 12c is set such that the convex portion 30b enters the concave engaging portion 12c when the spout 30 is pushed to the lowermost portion. .. The distance between the convex portion 30b in the stationary state and the engaging portion 12c can be changed according to the ejection amount of the liquid agent, and the convex portion 30b enters the concave portion of the engaging portion 12c when a predetermined ejection amount is ejected. Should be arranged like this. The shorter the distance between the convex portion 30b and the engaging portion 12c in the stationary state, the smaller the ejection amount of the liquid agent, and the longer the distance between the convex portion 30b and the concave portion of the engaging portion 12c, the larger the ejection amount of the liquid agent.

(Operation example of the jet pump 10)
Next, an operation example of the ejection pump 10 will be described with reference to FIGS.
First, as shown in FIG. 7A, when the ejection container 20 is used for the first time, air is accumulated in the fixed amount chamber 45, the pipe 11 and the piston 43. In the stationary state, the fixed quantity chamber 45 is in a state in which the upper end is closed by the check valve 47 and the lower end is closed by the ball valve 42.

When the user presses down the spout 30 (arrow Y1), as shown in FIG. 7B, the pump mechanism 40 operates as described in the configuration of the pump mechanism 40, and the air in the fixed amount chamber 45 changes to the piston 43. It flows in, is pushed out upward, and is ejected from the nozzle 13.

When the user weakens the force of pushing down the spout 30, the piston 43 is raised by the elastic body 44 (arrow Y2). When the piston 43 rises, the pump mechanism 40 operates as described in the configuration of the pump mechanism 40, and the liquid agent L in the container body 21 flows from the pipe 11 into the metering chamber 45 as shown in FIG. Sucked up.

When the spout 30 returns to the uppermost position, the jet pump 10 returns to the stationary state. When the user repeatedly presses the spout 30 several times, the liquid L is filled in the fixed amount chamber 45, the piston 43, and the nozzle 13. When the user presses the spout 30 again in this state, the pump mechanism 40 operates as described above, and the liquid agent L is ejected from the tip of the nozzle 13 as shown in FIG. 8B.

Specifically, as shown in FIG. 8A, when the user presses the spout 30 (arrow Y3), the pump mechanism 40 operates and the liquid agent L in the metering chamber 45 is pushed upward and ejected from the nozzle 13. To be done. When the spout 30 is pushed to the bottom, the piston 43 descends and the fixed amount chamber 45 is compressed most, and a fixed amount of the liquid agent L, which is the same amount as the compressed amount in the fixed amount chamber 45, is ejected from the nozzle 13. ..

As shown in FIG. 8B, when the user weakens the force of pressing down the spout 30, the piston 43 moves up (arrow Y4). When the piston 43 rises, the pump mechanism 40 operates and the liquid agent L in the container body 21 is sucked up into the fixed amount chamber 45.

Next, the operation of the engaging portions 30a and 12c, which is the main point of this embodiment, will be described with reference to FIG.

In the stationary state, as shown in FIG. 6A, the spout 30 is located at the uppermost position, and the engaging portions 30a and 12c are at the farthest positions.

When the user presses the spout 30 to the lowermost portion, as shown in FIG. 6B, the convex portion 30b of the engaging portion 30a rides over the convex portion 12b and engages with the concave portion of the engaging portion 12c (convex portion). The portion 30b enters the recess of the engaging portion 12c). When engaged, the engaging portions 30a and 12c generate sound and cause non-smooth movement of the piston 43.

When the user weakens the force with which the spout 30 is pressed down, the elastic body 44 raises the piston 43, whereby the engagement portions 30a and 12c are disengaged. Even at the timing of disengagement of the engagement portions 30a and 12c, noise and non-smooth movement of the piston 43 occur.

As described above, in the ejection pump 10 according to the present embodiment, when the user presses the spout 30 to engage the engaging portions 30a and 12c, noise and non-smooth movement of the piston 43 occur. The user can recognize that the spout 30 has been pushed down to the lowermost portion by the sound generated by the engaging portions 30a and 12c and the non-smooth touch feeling.

Therefore, each time the user presses the spout 30, a certain amount of the liquid agent L can be ejected from the nozzle 13, and the same effect of using the liquid agent L can be obtained every time. For example, even when the liquid agent L is a drug whose amount to be used at one time is determined, the user can eject the determined amount of the drug from the ejection pump 10 each time and use it.

Particularly when the convex portion 12b is provided as in the present embodiment, when the user presses the spout 30, the convex portion 30b gets over the convex portion 12b and then enters the concave portion of the engaging portion 12c, so that the engaging portion 30a. The sound and non-smoothness generated by the engagement between the fixing portion 12a and the fixing portion 12a are further increased, and the user can easily recognize that the spout 30 is pressed down to a predetermined position.

Further, since the jet pump 10 has a structure that allows the spout 30 to be easily recognized to be pushed down to the lowermost portion, it is easy to use even for a visually impaired user.

Resins such as polypropylene, polyethylene, polyacetal, PET (polyethylene terephthalate), and ABS (acrylonitrile butadiene styrene polymer) are used for the spout 30, the pump mechanism 40, and the pipe 11. For the elastic body 44, a metal (for example, stainless steel material such as SUS304 or SUS316) or resin spring can be used. As the material of the ball valve 42, metal (for example, stainless steel material such as SUS304 or SUS316) or resin can be used.

(Modified spout 30B)
A modified example of the spout will be described with reference to FIG. The spout 30B of the modified example is the same as the spout 30 in that it has three engaging portions 30a, but that each engaging portion 30a is provided with a plurality of convex portions 30b in the vertical direction, the spout 30B. Is different from In the ejection pump having the spout 30B, a fixed amount of the liquid agent is provided each time the user presses the spout 30B to engage the plurality of convex portions 30b with the concave portions of the engaging portion 12c of the fixing portion 12a (see FIG. 2, etc.). It is ejected from the nozzle 13.

When three convex portions 30b are provided at equal intervals from the bottom of each engaging portion 30a in the order of the convex portions 30b1, 30b2, 30b3, the convex portion 30b1 is first formed into the concave portion of the engaging portion 12c by pressing the spout 30B. The convex portion 30b2 is engaged with the concave portion of the engaging portion 12c, and the convex portion 30b3 is finally engaged with the concave portion of the engaging portion 12c. The amount of the liquid agent ejected from the nozzle 13 between the time when the convex portion 30b1 is engaged with the concave portion of the engaging portion 12c and the time when the convex portion 30b2 is engaged with the concave portion of the engaging portion 12c and the convex portion 30b2 are related. The amount of the liquid agent ejected from the nozzle 13 during the period from the engagement with the concave portion of the joining portion 12c to the engagement of the convex portion 30b3 with the concave portion of the engaging portion 12c is the same.

As described above, since the protrusions 30b are provided in the vertical direction in a plurality of steps on the spout 30B of the modified example, a user who uses the ejection pump having the spout 30B has a plurality of protrusions 30b on the engaging portion 12c. Each time it is engaged with, it can be recognized by sound and non-smoothness that the predetermined amount of the content is ejected.

(Other modifications)
In the above-described configuration, the configuration in which both sound and non-smoothness occur when the engaging portions 30a and 12c are engaged has been described, but in order to make the user recognize that a predetermined amount of content is ejected. The configuration of is not limited to the example described above. For example, when the engaging portions 30a and 12c are engaged with each other, one of sound and non-smoothness may be generated to cause the user to recognize that the spout 30 is pressed down to a predetermined position.

Further, the concave engaging portion 30a and the convex portion provided on the fixed portion 12a may be engaged with each other to generate sound or non-smoothness, or the engaging portion 12c of the fixed portion 12a may be divided into a plurality of parts. Alternatively, the convex portion 30b may be divided into a plurality of engaging portions 30a at the same height.

Further, one of the engaging portion 30a and the engaging portion 12c is a rough surface, and the other is a surface or a convex portion, and the two rub against each other to increase the friction coefficient, so that the movement of the piston 43 becomes heavy. As a result, the non-smoothness may be generated, and the user may recognize that the predetermined content is ejected without generating a sound.

Since the fixed portion 12a is provided with the convex portion 12b, the sound and non-smoothness generated by the engagement between the engaging portion 30a and the fixed portion 12a are increased as described above, but the engaging portion 12c is increased. The upper convex portion 12b may be omitted.

Further, the engaging portion 12c is not limited to the outer peripheral surface of the fixed portion 12a, and may be arranged at the upper end of the outer peripheral surface of at least one of the fixed portion 12a and the cylinder 41, and the engaging portion 30a is not limited to the spout 30. Alternatively, the spout 30 and at least one of the lower ends of the pistons 43 may be disposed.

Further, in the present embodiment, the sound is generated by the engagement between the engagement portion 30a and the engagement portion 12c, but either the engagement portion 30a or the engagement portion 12c is provided, and the spout 30 is provided. The structure may be such that when is pressed, the engaging portion 30a or the engaging portion 12c is engaged with another member to allow the user to recognize that the spout 30 is pressed to a predetermined position.

When the engaging portions 30a are arranged, the number of the engaging portions 30a is not limited to three, and may be three or more or less. However, it is preferable that a plurality of engaging portions 30a are arranged in the space between the inner cylinder and the outer cylinder. The engaging portion 30a may be integrated with the outer cylinder 32 when the convex portion 30b engageable with the fixing portion 12a is provided on the inner peripheral surface of the outer cylinder 32.

The pump mechanism 40 is not limited to the direct pressure type as described above, and may be a pressure accumulating type that ejects the liquid agent at a dash when the pressure in the metering chamber 45 rises above a predetermined value. The internal structure of the cylinder 41 is different between the direct pressure type and the pressure accumulating type, but when the user presses a member arranged at the upper end of the piston 43, the piston 43 moves up and down in the cylinder 41 and the contents are ejected. Are the same. Therefore, even in the pressure-accumulation type ejection pump, as in the case of the direct pressure type ejection pump, a mechanism portion that emits a sound as the piston 43 moves up and down is provided at least on the side of the displacement member that moves up and down by the displacement of the piston 43 and on the cylinder 41 side. Since it can be provided on one side, the same effect as that of the direct pressure type jet pump 10 described above can be obtained.

Further, the structure for ejecting the content to the outside of the ejection pump 10 may be a structure in which the user ejects the content by pulling the lever of the trigger. Further, the pump mechanism 40 is not limited to the type in which the liquid agent is ejected as described above, and may have a structure in which the content is ejected in the form of mist, gel, foam, or the like.

Further, although the ejection pump has been described in the present embodiment, the present invention can be applied to an ejection valve of an aerosol. The ejection valve has a stem that ejects the contents of the aerosol when pushed down, and a ejection unit that pushes down the stem is attached to the stem. The ejection unit is provided with operation parts such as buttons, levers and triggers, and a fixing part fixed to the container. Therefore, when the operating portion is displaced by a certain amount, a certain amount of the content is ejected by providing a mechanism portion (engaging portion) that engages with a part of the fixed portion to generate sound or non-smoothness. Will be possible. In particular, when the ejection valve is a metering valve, it is useful to apply the present invention.

10... Jet pump, 11... Pipe, 12... Cap, 12a... Fixed part, 12b... Convex part, 12c... Engagement part, 13... Nozzle, 20... Jet container, 21... Container body, 22... Opening part, 30... Spout, 30a... Engaging portion, 30b... Convex portion, 40... Pump mechanism, 41... Cylinder, 43... Piston

Claims (11)

A cylinder that has a space inside to suck up and store a certain amount of contents,
A piston having one end inserted into the cylinder,
A spout that is fixed to the other end of the piston and that ejects the content extruded from within the cylinder by the displacement of the piston in the direction of compressing the space,
And a mechanism portion for generating a sound or causing non-smoothness in the displacement of the piston when the displacement of the one end of the piston in the compression direction reaches a certain amount in the cylinder. A jet pump characterized by that. One or more displacement members that displace with the displacement of the piston;
With respect to the cylinder, further has a fixing portion fixed at least in the axial direction of the cylinder,
The mechanism portion has an engaging portion provided on at least one part of the piston, the spout, and the displacement member, and/or at least a part of at least one of the cylinder and the fixing part. The ejection pump according to claim 1. The engaging portion includes a first engaging portion provided with a convex portion or a concave portion provided on the other end of the piston or a part of the spout, and the end on the spout side of the cylinder or the fixing portion. The jet pump according to claim 2, wherein the jet pump engages with the portion. The engaging portion includes a second engaging portion having a concave portion or a convex portion provided at an end portion of the cylinder or the fixing portion on the spout side, and the second engaging portion includes the second engaging portion. The ejection pump according to claim 3, wherein the ejection pump engages with one engaging portion. The jet pump according to claim 2, wherein the fixing portion is a part of a cap that fixes the jet pump to the container body, and is rotatable in the circumferential direction with respect to the cylinder. In the space in the cylinder, an elastic body that urges the one end of the piston in a direction opposite to the compression direction is arranged.
The ejection pump according to claim 2, wherein the elastic body pushes the one end of the piston in a direction opposite to the direction in which the piston is compressed to release the engagement of the engagement portion. The jet pump according to claim 1, wherein when the displacement of the piston in the compression direction reaches a certain amount, the piston is in the most compressed state of the space. The spout is
An inner cylinder into which the other end of the piston is inserted and fixed;
A disk fixed on the inner cylinder,
An outer cylinder fixed to the lower surface of the outer peripheral end of the disc,
Penetrating the inner cylinder and the outer cylinder, having a nozzle protruding in a direction orthogonal to the axial direction of the cylinder,
The first engagement portion is arranged on the outer peripheral side of the lower surface of the disc with respect to the inner cylinder,
The ejection pump according to claim 4, wherein the displacement engages with the second engagement portion arranged on the outer peripheral surface of the cylinder or the fixed portion. The jet pump according to claim 8, wherein a plurality of the engaging portions are circumferentially arranged in a space between the inner cylinder and the outer cylinder. The jet pump according to claim 4, wherein the convex portion of the first engaging portion that engages with the concave portion of the second engaging portion is provided in a plurality of stages in the axial direction of the cylinder. .. It has the container body which accommodates the said content, and the ejection pump attached to the upper part of the said container body, The said ejection pump is the ejection pump of any one of Claims 1-10. Characteristic ejection container.