JP2607175Y2 - Liquid ejection pump - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid ejecting pump which is mounted on a mouthpiece of a bottle and ejects the liquid in the bottle to the side by a built-in pump function.

[0002]

2. Description of the Related Art As a means for directly discharging a liquid content from a bottle, a liquid ejecting means such as a trigger pump which is attached to a neck portion of the bottle and sucks and ejects the liquid content of the bottle by a built-in pump function. Pumps are known.

[0003] The liquid ejection pump has a built-in pump function, and a pump body for ejecting the content liquid sucked up by the pump function to the side, and an assembly for assembling and holding the pump body in a mouth portion of a bottle. The pump generally comprises a cap, and an upper end connected to the connecting cylinder piece of the pump main body, and a lower end located at the bottom of the bottle, and a suction pipe forming a content liquid suction passage of the pump main body. It is.

[0004] In addition, the bottom of the bottle to which the jetting pump is attached is generally depressed in the shape of a spherical shell in the center of the bottle in order to improve the "sitting" of the bottle itself. For this bottle, the liquid spouting pump sets the lower end opening of the suction pipe at the peripheral end of the bottom located at the lowest position in the bottle in order to suck up and spout out the content liquid as much as possible. And assembled.

As described above, in order to ensure that the lower end opening of the suction pipe is located at the peripheral end of the bottom of the bottle, conventionally, the length of the suction pipe is adjusted by connecting the pump body to the mouthpiece of the bottle. In the assembled state, the distance from the connecting cylinder piece of the pump body to the peripheral edge of the bottom of the bottle is slightly larger than that of the pump body. Is brought into contact with the bottom of the bottle to be elastically bent and deformed, and the elasticity of the bent deformation ensures that the lower end opening of the suction pipe is located at the peripheral end of the bottom of the bottle.

[0006]

However, in the above-mentioned prior art, since the bending deformation direction of the suction pipe which occurs when the pump body is assembled to the bottle is undefined, the lower end opening of the suction pipe with respect to the pump body. The position cannot be specified along the circumferential direction of the bottle, so if the lower end opening of the suction pipe is located at the circumferential end of the bottom of the bottle, which is greatly displaced from the direction of ejecting the liquid from the pump body, the When the remaining amount of the liquid becomes small, there is a problem that the liquid content cannot be spouted in an appropriate posture.

When the ejection pump is attached to the mouthpiece of the bottle, the lower end of the suction pipe inserted into the bottle is provided with an assembling cap for attaching and fixing the pump body of the ejection pump to the bottle. Before it is screwed into the mouthpiece, it hits the bottom of the bottle, so the bottom end of the suction pipe abuts against the bottom of the bottle. There was a problem that it was difficult to achieve.

Accordingly, the present invention has been devised in order to solve the above-mentioned problems in the prior art. When the ejection pump is mounted on a bottle, the opening at the lower end of the suction pipe moves in the direction in which the liquid is ejected. The technical task is to ensure that it is positioned at the peripheral edge of the bottom of the bottle, so that the liquid content can be sprayed out to the end while maintaining the proper posture, and the assembly to the bottle is simple and smooth. The goal is to be able to achieve.

[0009]

Means for Solving the Problems The means of the present invention for solving the above technical problem has a pump body which has a built-in suction pump function and jets the sucked contents liquid from a nozzle head to the side. An assembling cap for assembling and holding the main body to the mouthpiece portion of the bottle, an upper end portion fitted and connected to a connecting tube piece forming a liquid suction port of the pump body, and a lower end opening portion to a bottom portion of the bottle. by positioning the linear to form a wicking path to the pump body of the liquid content of the bottle
And that the connecting cylinder piece of the pump body is inclined downward toward the nozzle head.

[0010]

Since the connecting cylinder piece of the pump body is inclined downward toward the nozzle head side of the same pump body, when the upper end of the suction pipe is fitted and assembled to this connecting cylinder piece, it is linear. The suction pipe is attached to the pump main body in an inclined position in which the lower end opening is located on the nozzle head side, that is, on the side of the ejection direction of the content liquid.

For this reason, by setting the length of the suction pipe to a value located on the peripheral end of the bottom of the bottle with the ejection pump attached to the bottle, the ejection pump can be connected to the bottle. When the suction pipe is assembled, the suction pipe has its lower end opening positioned on the peripheral end of the bottle bottom located on the nozzle head side due to its own shape retaining force.

Also, in order to assemble the ejection pump to the bottle,
When the suction pipe of the ejection pump is inserted into the bottle from the mouthpiece and the assembled cap of the ejection pump is positioned at the screwing position to the bottle mouth, the suction pipe is inclined with respect to the pump body. Since the lower end opening of the suction pipe is located on the peripheral end of the bottom of the bottle and does not abut against the bottom of the bottle, the cap of the ejection pump is attached to the suction pipe. Is screwed and assembled to the bottle mouth without being disturbed by the bottom of the bottle.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The ejection pump 1 of the illustrated embodiment shows an example in which the invention is applied to what is generally called a trigger pump. The ejection pump 1 has a built-in pump function and sucks the content liquid from a nozzle head 3 which forms an ejection port to a side. The pump body 2 that jets out, and an assembling cap 7 that tightly assembles and holds the pump body 2 to the mouthpiece 13 of the bottle 9 by screwing.
And the upper end thereof is tightly fitted and connected to the connecting tube piece 5 forming the content liquid suction port of the pump body 2, and the lower end opening is located on the peripheral end 12 of the bottom 11 of the bottle 9. And a suction pipe 6 forming a suction passage for the content liquid.

In the pump body 2, an operation lever 4 for manually driving a built-in pump function section is pivotally fixed to a position directly below the nozzle head 3 so that the upper end of the suction pipe 6 is closely fitted and assembled. The inner peripheral surface of the connecting cylinder piece 5 is inclined downward toward the nozzle head 3.

The suction pipe 6 is entirely linear and has a lower opening edge formed around the bottom 11 of the bottle 9 in a state where the pump body 2 is assembled to the mouthpiece 13 of the bottle 9. It is long enough to make light contact with the end 12.

The assembling cap 7 is attached to the pump body 2 so as to rotate freely, and a thread formed on the inner peripheral surface of the cylinder wall is screwed on the outer peripheral surface of the cylindrical portion 13 of the bottle 9. By screwing into the strip, the pump body 2 is tightly assembled and held in the bottle 9.

Reference numeral 8 denotes a packing, which achieves and maintains a seal between the pump body 2 and the bottle 9 attached to the mouth tube portion 13 of the bottle 9 by the assembling cap 7. Is arranged between the upper end surface of the mouthpiece portion 13 and the opposing pump body 2 portion.

The bottle 9 is a blow molded product made of synthetic resin.
At the lower end of the cylindrical body 10, the central part is shaped like a spherical shell in the body 1.
The bottom 11 bulged in 0 is continuously provided, and at the upper end,
The mouthpiece 13 is formed by erecting a thread on the outer peripheral surface via a shoulder.

Since the bottom 11 has its central portion bulging into the body 10, the peripheral end 12 is the lowest point in the bottle 9.

In the case of the illustrated embodiment, since the assembly cap 7 is freely rotatable with respect to the pump body 2,
The combination of the pump body 2 and the suction pipe 6 can be assembled and fixed to the bottle 9 without rotating the same.

Therefore, even if the length of the suction pipe 6 is slightly longer than the set value, the suction pipe 6
With the lower end opening of the pump body 2 properly positioned,
And the suction pipe 6 can be assembled to the bottle 9.

[0022]

[Effects of the Invention] Since the present invention has the above-described configuration, the following effects can be obtained. The connecting pipe piece of the pump body has a configuration in which the suction pipe fitting installation portion is inclined downward toward the content liquid jetting direction. Since the lower end opening is inclined so that the lower end opening is located on the side where the content liquid is ejected, the lower end opening of the suction pipe must always be in the direction of the content liquid ejection direction when the ejection pump is attached to the bottle. As long as a normal content liquid ejection operation is performed, which is located on the bottom peripheral end and ejects the content liquid slightly downward, the content liquid can be efficiently ejected and consumed without waste.

Since the lower end of the suction pipe with respect to the pump body is mounted in an inclined position with the lower end positioned on the side of the liquid jetting direction, the lower end of the suction pipe is required when the jet pump is mounted on the bottle. Is located on the peripheral edge of the bottom and does not abut against the center of the bottom bulging into the inside of the bottle, so that the jet pump can be smoothly and favorably assembled to the bottle.

[Brief description of the drawings]

FIG. 1 is an overall side view, partially longitudinally, showing an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1; Ejection pump 2; Pump body 3; Nozzle head 4; Operating lever 5; Connecting tube piece 6; Suction pipe 7; Assembling cap 8; Packing 9; Bottle 10; Body 11; Bottom 12; Peripheral end 13 ; Mouthpiece

Claims (1)

(57) [Scope of request for utility model registration] 1. A pump body (2) having a built-in suction pump function for ejecting the sucked content liquid from a nozzle head (3) to the side, and the pump body (2) serving as a mouthpiece of a bottle (9). Department (1
The upper end is fitted and connected to an assembly cap (7) for assembling and holding in 3) and a connecting cylinder piece (5) forming a content liquid suction port of the pump body (2), and the lower end opening is connected to the bottle. Bottom of body (9)
A linear suction pipe (6) for forming a suction passage for the liquid content of the bottle (9) to the pump body (2). The liquid jet pump in which the connecting cylinder piece (5) is inclined downward toward the nozzle head (3).