JPH0716611Y2 - Pump type liquid dispenser - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a structure of a suction pipe mounting portion of a pump type liquid discharger which is mounted on a container body and discharges liquid inside the container body.

"Prior Art" A pump type liquid ejector attached to a container body hangs a pipe fitting cylinder 4 from the lower end of the cylinder as shown in Fig. 3, and a suction pipe 21 is attached to either the inner or outer surface of the fitting cylinder. Fit the upper end of. The suction pipe is made of a soft synthetic resin material, and in order to prevent the suction pipe from being pulled out, a protrusion 4a having a semicircular cross section is attached to the inner or outer surface of the pipe fitting cylinder or one of them.
The ridges are elastically deformed to overcome the suction pipe 21
The upper end is fitted.

[Problems to be solved by the invention] In order to securely fit the suction pipe and prevent the suction pipe from being pulled out, it was attached to the inner or outer surface of the pipe fitting cylinder hanging from the lower end of the cylinder of the pump type liquid discharger. The ridge is
Since the cross-section is semi-circular, as the height of the protrusion increases, it becomes difficult to climb over the ridge when fitting the suction pipe. If the height was small, the suction pipe could easily come off.

According to the present invention, the protrusion height of the ridge is large, and the ridge can be easily climbed over by the suction pipe.

"Means for Solving the Problem" The lower part of the operating member 7 is fitted into the cylinder 2 that hangs down inside the container body against urging, and the operating member is moved up and down to wick down from the lower end of the cylinder. In the pump type liquid discharge container provided so that the liquid in the container is sucked into the cylinder through the pipe 21 and the liquid sucked into the cylinder is discharged from the nozzle 11 of the operating member.
At least one of the inner and outer surfaces of the pipe fitting cylinder 4 that hangs down from the lower end and fits the upper end of the suction pipe 21
Tapered protrusions that gradually increase in height from bottom to top
20 was attached to the ridge, and the ridge was elastically deformed to get over the ridge, and the suction pipe 21 was connected.

[Operation] As shown in FIG. 2, the ridges are tapered ridges 20 whose ridge height gradually increases from the bottom to the top, so that the upper end of the suction pipe 21 is fitted into the pipe fitting cylinder 4. And, by pushing up, the upper end of the suction pipe is gradually elastically deformed and gets over the tapered protrusion 20.

"Example" 1 is a pump type liquid discharger according to an example.

Reference numeral 2 denotes a cylinder that vertically extends into the container body. A suction valve 3 is provided in the bottom of the cylinder, and a pipe fitting cylinder 4 is suspended from the lower end of the cylinder. Further, a flange 5 is mounted on the upper end of the cylinder so as to be placed on the top surface of the container opening, and a short cylinder 6 is erected from the upper surface of the flange.

A lower portion of the operating member 7 is vertically movable in the cylinder and is urged upward by a spring 8 to stand up. The operating member is formed of a stem 9, a cylindrical piston 10 fitted to the lower end of the stem, and a push-down head 12 fitted with a nozzle 11 fitted to the upper end of the stem. It has a discharge valve 13.

A member 15 with a screw tube 14 is fitted to the short cylinder 6, and an inner surface of an upper end of a mounting cylinder 17 to be screwed onto the outer surface of the neck of the container body is attached to the upper surface of the outward flange 5 of the cylinder 2. The facing flange 16 is mounted.

Note that 18 stands upright in the cylinder, but is provided by a guide rod if necessary.

On both inner and outer surfaces of the pipe fitting cylinder 4 of the cylinder 2 described above, taper-shaped projections 20 having a gradually increasing height from below are provided. Further, the taper-shaped projection 20 on the inner surface side is overridden by elastic deformation, and the upper end portion of the suction pipe 21 is fitted to the inner surface of the pipe fitting cylinder 4. The suction pipe may be fitted to the outer surface of the pipe fitting cylinder 4.

[Advantage of the Invention] As described above, in the present invention, the projections attached to the inner surface or the outer cylinder of the pipe fitting cylinder are tapered projections 20 whose height gradually increases from the lower side to the upper side. The upper end of the suction pipe 21 can be fitted securely and easily.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of the dispenser of the present invention, FIG. 2 is an exploded enlarged sectional view of a main part thereof, and FIG. 3 is an enlarged sectional view of a suction pipe fitting portion according to a conventional example. 2 ... Cylinder, 4 ... Pipe fitting cylinder 7 ... Actuating member, 21 ... Pipe fitting cylinder

Claims (1)

[Scope of utility model registration request] 1. A lower portion of an actuating member 7 is fitted against a biasing force into a cylinder 2 that hangs down into a container body, and a suction pipe 21 that hangs down from the lower end of the cylinder by vertically moving the actuating member. In a pump type liquid discharger provided so as to suck the liquid in the container into the cylinder and discharge the sucked liquid into the cylinder from the nozzle 11 of the operating member, the suction pipe is hung from the lower end of the cylinder 2. Of the inner and outer surfaces of the pipe fitting cylinder 4 into which the upper end of 21 is fitted, at least one of them is provided with a tapered ridge 20 whose ridge height gradually increases from the lower side to the upper side. A pump type liquid discharge container characterized in that the suction pipe (21) is connected by overcoming the elastic deformation.