JPH04126763U - fluid dispenser - Google Patents

Abstract

(57) [Summary] [Purpose] A fluid consisting of a cylinder member with a suction valve attached to the mouth of a container body and suspended into the container body, and an actuating member with a discharge valve that stands up from within the member by upward force. In the discharge device, the structure of the operating member is simplified, and
The discharge flow path is ensured to be sealed when the actuating member is pushed down and screwed into the cylinder member. [Configuration] The cylindrical piston 15 and stem 16 are integrally molded,
Further, when the actuating member 27 is screwed into the cylinder member 1, the outer circumferential wall surface of the poppet serving as the valve body of the suction valve and the inner surface of the lower end of the stem are sealed by the seal protrusion 18.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a device for dispensing fluids such as liquids or creams.

0002

[Conventional technology]

For example, as shown in Japanese Utility Model Application Publication No. 64-25366, a cylinder is attached to the opening of the container body. A cylinder member with a suction valve that hangs down, and a cylindrical member that fits into the cylinder. The stem is raised from the piston, and a head with a nozzle is fitted to the upper end of the stem. It consists of an operating member with an outlet valve, and the fluid in the container is pumped into the cylinder by the vertical movement of the operating member. At the same time, the upper end of the cylinder member has a female thread. , and a fluid ejector having a male thread in the lower part of the head of the actuating member, respectively. Are known. The dispensing device is configured such that the actuating member is pushed up by an upward bias to release the dispensing device envelope. In order to prevent bulkiness during installation, etc., the above-mentioned male thread is screwed into the female thread. In order to maintain the moving member in the depressed state and to prevent liquid leakage when the moving member is held in the depressed state, a pump is installed. There is a so-called upward step on the outer surface of the poppet, which is built into the cylinder to increase poppet efficiency. A portion is provided so that the lower end surface of the actuating member comes into watertight pressure contact with the upper surface of the stepped portion, thereby blocking the liquid outflow path. It is set up so that

0003

[Problem that the idea aims to solve]

This proposal is designed to prevent liquid leakage when the actuating member is pushed down and screwed into the cylinder member. In addition to making it easier and more reliable to stop than before, it also features a cylindrical piston and stem. It is provided so that the discharge device can be formed at a low cost by integrally molding the discharge device.

0004

[Means to solve the problem]

A cylinder member with a suction valve that hangs down from a cylinder that is attached to the mouth of the container body. , the stem is erected from the cylindrical piston fitted into the cylinder, and the upper end of the stem is an operating member with a discharge valve, into which a head with a nozzle is fitted; The fluid in the container is drawn up into the cylinder by vertical movement and discharged from the nozzle, and the cylinder Female thread in the upper end of the cylinder member and male thread in the lower part of the head of the actuating member. In each fluid discharger having It is formed by a valve seat 8 provided and a poppet 30 placed on the valve seat, and the cylindrical The piston 15 and stem 16 are integrally molded from synthetic resin, and the actuating member 27 is urged upward. When the male screw 22 is screwed into the female screw 13 by pushing down against the The lower end of the stem 16 fits into the outer surface, and the outer peripheral wall of the poppet and the inner wall of the stem are connected. A seal protrusion 18 provided around either side is formed so as to be able to be pressed against the other wall surface in a watertight manner.

[0005]

[Effect]

From the state shown in Fig. 2, push down the actuating member 27 against the cylinder member 1 and insert the male When the screw 22 is screwed together, the seal protrusion 18 provided around the inner surface of the lower end of the stem 16 will open as shown in FIG. The poppet 30 is a water-tight fit to the outer surface of the poppet 30 to prevent fluid from entering the cylinder 3 into the stem 16. Seal the spillway. Also, in this way, the seal protrusion 18 is pressed down closely against the outer surface of the poppet. By doing so, the lower end surface of the poppet is brought into watertight pressure contact with the valve seat 8 on the inner surface of the bottom of the cylinder. Therefore, the suction valve 34 formed by these components is also sealed.

[0006]

【Example】

First, the first embodiment shown in FIGS. 1 and 2 will be described. The cylinder member 1 is It has a tube 2 for attaching to the mouth of the container body, and a cylinder 3 is suspended from the tube. The cylinder is The lower part is made into a small diameter part 4, and the tape is inserted downwardly and inwardly from the lower end of the small diameter part through an inward flange-like part. - The tapered wall 5 is protruded, and the suction pipe fitting cylinder 6 is suspended from the lower end of the tapered wall. A plurality of guide protrusions 7 are vertically provided at equal intervals on the inner surface of the small diameter portion 4, and the above-mentioned taper The inner surface of the shaped wall serves as a valve seat 8 for the suction valve. The upper part of the cylinder is a large diameter part 9, and An outside air intake hole 10 is provided at the lower end, and an outward facing hole with a die-cut hole 11 is provided at the lower part of the large diameter above the hole. A flange 12 is attached. The inner surface of the upper end of the cylinder has a female thread 13 on the inner surface. A female threaded cylinder is fitted. In the illustrated example, the female threaded tube and the previously described mounting tube 2 are integrally molded. are doing.

[0007] A cylindrical piston 15 is fitted inside the cylinder, and the piston and synthetic resin The stem 16 is integrally molded from the piston and stands up from the piston. Inside the top of the stem An inward flange-like wall with a small diameter downward is attached integrally to the surface, and the upper surface is used for the discharge valve. A valve seat 17 is provided, and a seal protrusion 18 is provided around the inner surface of the lower end of the stem. At the top of stem 16 Then, the head 20 with the nozzle 19 is fitted. The head 20 hangs down the stem fitting tube 21. , a male thread 22 is attached to the outer surface of the cylinder. The top wall of the head above the stem fitting tube 21 is The opening is opened, and the opening is sealed with a lid plate 23 provided separately. From the inner surface of the upper end of the stem fitting tube A spiral elastic piece 24 is hung down, a valve plate 25 is attached to the lower end of the spiral elastic piece 24, and the valve plate and the valve seat are connected to each other. This is the discharge valve 26.

[0008] A poppet 30 is inserted into the cylinder 3. The poppet is the valve of the suction valve. It was provided as a body and to improve pump efficiency, with the lower half being a cylindrical part and the upper half being a cylinder part. is a small diameter rod part 31, and the upper part of the cylinder part is a medium diameter cylinder part 32. The lower end surface of the cylindrical part is It has a tapered surface with a small diameter downward so that it can sit on the valve seat 8 and form the suction valve 34. , a plurality of protrusions 33 are protruded from the outer surface of the lower end of the cylindrical portion by being loosely fitted between the guide protrusions 7... mentioned above. do. The tip circle of these protrusions has a larger diameter than the inner diameter of the coil spring described later, and has a series The diameter is slightly smaller than the inner diameter of the small diameter portion 4.

[0009] The operating member 27 formed by the cylindrical piston, stem, and head is a coil spring. It is biased upwards by the pin 35. The lower end of the spring is placed on the upper surface of the guide protrusion 7. , and the upper end is pressed against the lower surface of the stem.

0010 As shown in Figure 1, the actuating member 27 is pushed down and the male thread is screwed into the female thread described above. At this time, the seal protrusion 18 at the lower end of the stem 16 is watertightly fitted to the outer surface of the medium-diameter cylindrical portion 32 of the poppet 30. It will be provided that The seal protrusion makes the inner surface of the lower end of the stem watertight with poppet 30. Therefore, the seal protrusion 18 extends around the outer surface of the poppet. You may have them set up.

[0011] In the embodiment shown in FIG. 3, the mounting tube 2 and the female thread tube are separate members. In the embodiment shown, the outward flange of the cylinder is removed and the container on the inner surface of the mounting cylinder 2 is Instead of the female thread for screwing the body opening part, an engaging protrusion 2a is provided around the inner surface of the mounting cylinder, and the engaging protrusion 2a is provided around the inner surface of the mounting cylinder. The strip is provided so that it can be engaged with the lower surface of the protrusion provided around the outer surface of the mouth of the container body.

0012

[Effect of the idea]

This proposal has the structure described above, and the cylindrical piston 15 and the stem are integrated with synthetic resin material. Because it is molded, the number of parts can be reduced, and the valve body of the suction valve can be shaped with a poppet 30. When the actuating member 27 is pushed down and screwed into the cylinder member 1, the stem The poppet fits into the lower end of 16, and the outer peripheral wall of the poppet and the inner wall of the stem are connected to each other. Since the seal protrusion 18 provided around either wall can be pressed against the other wall in a watertight manner, The lower end of the stem hole is sealed by the poppet and the seal protrusion, and at this time, the poppet The valve seat 8 comes into pressure contact with the valve seat 8 by its seal protrusion 18, so that the suction valve 34 Since it is double sealed in this way, the container attached to the dispenser is also sealed. Even if the container falls over, there will be no leakage. Furthermore, the outer peripheral wall of the poppet and the stem The upward step of the poppet and the stem or tube can be sealed together with the inner wall surface. Since there is no seal between the piston and the lower end surface of the piston, even if there are dimensional errors in the parts, the seal will not be sealed. Make the poppet outer wall surface or the stem inner wall surface on the side where the protrusion 18 comes in close contact longer. The lower end of the stem hole can be sealed without any problem, and the tolerance for dimensional errors can be maintained. can be expanded.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of the dispensing device of the present invention shown in a state in which the actuating member is screwed together.

FIG. 2 is a longitudinal cross-sectional view of the ejector with the actuating member in a raised state.

FIG. 3 is a longitudinal cross-sectional view of the ejector shown in the second embodiment.

FIG. 4 is a longitudinal cross-sectional view of the ejector shown in the third embodiment.

FIG. 5 is a perspective view of the main components of the ejector.

[Explanation of symbols]

1 Cylinder member 27 Actuating parts 30 poppet

Claims (1)

[Scope of utility model registration request] Claim 1: A cylinder member with a suction valve that hangs down from a cylinder that is attached to the mouth of the container, a stem that stands up from a cylindrical piston that is fitted into the cylinder, and a head with a nozzle attached to the upper end of the stem. The upper end of the cylinder member has an internal thread and an actuating member with a discharge valve that is fitted into the cylinder. In a fluid discharger each having a male thread in the lower part of the head of the member, the suction valve 34 is formed by a valve seat 8 provided at the bottom of the cylinder and a poppet 30 placed on the valve seat, and The cylindrical piston 15 and the stem 16 are integrally molded from a synthetic resin material, and when the operating member 27 is pushed down against the upward bias and the male screw 22 is screwed into the female screw 13, the poppet 30 The lower end of the stem 16 fits into the outer surface, and the seal protrusion 18 provided around either the outer peripheral wall surface of the poppet or the inner wall surface of the stem is formed so as to be able to be pressed against the other wall surface in a watertight manner. A fluid ejector.