JP2512982Y2 - Liquid ejector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a liquid ejector.

"Prior Art" Conventionally, there has been known a liquid ejector which has a push-down head with a nozzle and which ejects a liquid from the nozzle by pushing the push-down head (Japanese Utility Model Laid-Open No. 1-124259). .

This type of liquid ejector usually has a mounting cylinder supported by a holding cylinder on the outer periphery of the upper end of the cylinder, and has a cylindrical piston slidably mounted in the cylinder and a stem in the cylindrical piston. The stem is continuously projected upward from the cylinder, and a suction valve and a discharge valve are provided in the cylinder, and a push-down head with a nozzle is fitted and connected to the upper end of the stem. A pump mechanism is configured by incorporating a stem, a cylindrical piston, and a spring that urges the push-down head upward, and a suction pipe is fitted and hung down from the lower end of the cylinder. The liquid in the liquid container is sucked up through the suction pipe and ejected from the nozzle by being mounted on the mouth of the liquid container and operating the pressing head.

In addition, in order to prevent the push-down head from projecting upward in the course of product distribution, the push-down head is screwed to the holding cylinder at the lower limit of descent, and further, the screwing may be performed unexpectedly. In order to prevent loosening, the push-down head and the holding cylinder are covered with a cover cap.

[Problems to be solved by the invention] However, the conventionally used cover cap may come off and be lost during the product distribution process, particularly during over-the-counter sales. Further, the cover cap has a gentle appearance, and the shape and color of the cover cap must be taken into consideration when designing.

The present invention is intended to solve such a problem.

"Means for Solving the Problem" The present invention has a mounting cylinder 3 supported by a holding cylinder 2 on the outer periphery of the upper end of a cylinder 1, and a cylindrical piston 4 is slidably provided inside the cylinder 1. Then, the stem 6 is connected to the cylindrical piston to project the stem upward of the cylinder, and the suction valve 7 and the discharge valve 8 are appropriately provided in the cylinder 1,
A push-down head 10 with a nozzle 9 is fitted and connected to the upper end of the stem 6, and a spring 5 for urging the stem 6, the cylindrical piston 4 and the push-down head 10 upward is provided inside the cylinder 1. Then, in the liquid ejecting device which constitutes the pump mechanism and screw-supports the pressing head 10 on the holding cylinder 2 at the lower limit of lowering of the pressing head 10, the holding cylinder 2
Further, it is characterized in that a temple 11 to be engaged with a push-down head 10 which is screwed and supported at a lower limit is reciprocally mounted.

[Operation] With the above configuration, the suction pipe is fitted and hung down from the lower end of the cylinder 1 and mounted on the mouth of the liquid container by the mounting cylinder 3 as in the conventional case. In the product distribution process, the push-down head 10 screwed and supported by the holding cylinder 2 at the lower limit is held down to prevent unscrewing and mischief.

Next, when you activate the pump mechanism,
Is pushed down to remove it from the push-down head 10, and the push-down head 10 is unscrewed. Thereby, the pressing head 10 and the stem 6
And the cylindrical piston 4 is automatically raised to the upper limit by the elasticity of the spring 5. Therefore, thereafter, as in the conventional case, by pushing down the push-down head 10, it is possible to obtain the required pumping action associated with the rise and fall of the push-down head 10.

When the push-down head 10 is screwed and supported on the holding cylinder 2 again, it may be pushed down sufficiently to be screwed to the lower limit.
The temple 11 may be raised and engaged on the push-down head 10.

The suction pipe is not necessary as long as the lower end of the cylinder 1 approaches the bottom of the liquid container.

[Example] The drawings show a liquid ejector made of a synthetic resin according to the present invention.

In the figure, 1 is a cylinder having an outward flange 12 on the outer periphery of the upper end, 2 is a holding cylinder fitted and fixed to the upper end of the cylinder, 3 is the cylinder of the cylinder 1 due to the holding cylinder and the outward flange 12. A mounting cylinder 4 rotatably supported on the outer periphery of the upper end portion, a cylindrical piston 5 slidably fitted in the cylinder 1, and a cylindrical piston 5 inside the lower portion of the cylinder 1 for urging various lifting members upward. The spring 6, which is connected to the cylindrical piston 4 and is movably installed in the cylinder 1,
A stem having an upper part protruding upward from the cylinder, 7 is a suction valve composed of a taper valve seat 13 and a ball valve 14 provided at the lower end of the cylinder 1, and 8 is composed of the cylindrical piston 4 and the stem 6. The discharge valve 10 has a nozzle 9 projecting forward, and a push-down head 16 and 17 in which a hanging base cylinder 15 communicating with the nozzle is fitted and connected to the outside of the upper end of the stem 6. A thread formed on the outer circumference of the lower end portion of the hanging base cylinder 15 and the inner circumference of the holding cylinder 2 in order to screw the head to the holding cylinder 2 at the lower limit of lowering.
Is a push-down head 10 that is screwed and supported by the holding cylinder 2 at the lower limit.
The vine 18, which is mounted on the holding cylinder 2 so as to be able to be engaged with the upper side of the cylinder 1, is a packing provided on the lower surface of the outward flange 12 of the cylinder 1.

The stem 6 is composed of a flow path tube 19 and a bottomed small cylinder 20 fitted and connected to the inner surface of the lower end of the flow path tube 19. The tubular piston 4 is attached to the middle portion of the bottomed small cylinder. A skirt 22 is provided around the outer periphery of the lower end portion, and the skirt is fitted into the small diameter portion 23 formed in the lower portion of the cylinder 1 at the lower limit of the descending direction so that it can be freely inserted and removed to provide a closing means 21 when unnecessary.

The discharge valve 8 is such that the tubular piston 4 is slidably fitted to the outer periphery of the middle portion of the bottomed small cylinder 20 in a slidable manner, and the tubular piston 4 is also used as a valve body. A valve seat 24 around which the lowered cylindrical piston 4 is seated is provided around the shoulder portion, and a valve hole 25 is formed in a small cylinder having a bottom just above the skirt 22. When it is separated from the seat 24 upward, that is, in the descending stroke of the stem 6, the valve is opened to open the flow path of the cylinder 1 to the bottomed small cylinder 20, and the cylindrical piston 4 is moved to the valve seat. When seated in 24, that is, in the ascending stroke of the stem 6, the valve is closed to shut off the flow path.

The vine 11 is formed by cutting and raising a semi-circular band from the rear half edge of the holding cylinder 2 having a circular planar shape. Both ends are integrally connected to the holding cylinder 2 with thin hinges 26, 26 A protrusion 27 is provided on the inner surface of the part.

The upper surface of the push-down head 10 that engages the temple 11 is
Formed in a hemispherical shape that fits the arc of
A small recess 28 into which the protrusion 27 is fitted is formed so as to ensure the engagement posture of the temple 11. In the figure, 29 is a claw recess.

[Advantage of Invention] According to the present invention, between the holding head 2 and the pressing head 10 which is screwed and supported by the holding cylinder 2 at the lower limit of lowering, the holding cylinder 2 is provided with the temple 11 so as to be able to be erected. Since the temple 11 is engaged with the push-down head 10 that is screw-supported, the engagement prevents the push-down head 10 from being unintentionally unthreaded or loosened during the product distribution process. Also, since the cover cap is not used, the cover cap does not come off and get lost, and the appearance does not become tedious, and it is possible to make the appearance beautiful and slim with a light feeling. , Its shape and color do not need special consideration.

[Brief description of drawings]

1 and 2 are perspective views, FIG. 3 is a perspective view of essential parts, FIG. 4 is a cutaway side view, and FIG. 5 is a plan view. , FIG. 6 is an enlarged plan view of a main part. 1 ... Cylinder, 2 ... Holding cylinder 3 ... Mounting cylinder, 4 ... Cylindrical piston 5 ... Spring, 6 ... Stem 7 ... Suction valve, 8 ... Discharge valve 9 ... Nozzle, 10 ... Push down head 11 ... Vine, 26 ... Thin wall Hinge 27… Stem, 28… Small recess

Claims (1)

(57) [Scope of utility model registration request] 1. A cylinder 1 has a mounting cylinder 3 supported by a holding cylinder 2 on the outer periphery of an upper end thereof, and a cylindrical piston 4 is slidably mounted in the cylinder 1, and a stem is attached to the cylindrical piston. 6 are connected to each other to project the stem upward of the cylinder, and a suction valve 7 and a discharge valve 8 are appropriately provided in the cylinder 1.
A push-down head 10 with a nozzle 9 is fitted and connected to the upper end of the stem 6, and a spring 5 for urging the stem 6, the cylindrical piston 4 and the push-down head 10 upward is provided inside the cylinder 1. Then, in the liquid ejecting device which constitutes the pump mechanism and screw-supports the pressing head 10 on the holding cylinder 2 at the lower limit of lowering of the pressing head 10, the holding cylinder 2
A liquid ejector characterized in that a temple (11) to be engaged with a push-down head (10) screw-supported at the lower limit is reciprocally mounted.