JPH0620263U - dispenser - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the structure of the valve of a pump type dispenser for dispensing a fixed amount of liquid in a container. [Structure] The primary side valve 19 is provided between the cylinder 4 and the liquid suction pipe 32, and a valve opening 35 is provided on a flat plate-like valve seat 34 in an upwardly-spreading manner. A valve piece 36 to be fitted is formed, and one end of the valve piece 36 is connected to the valve port 35 and is molded integrally with the cylinder with plastic. This valve acts as a closing valve when the operating stem 10 rises and the inside of the cylinder becomes a negative pressure and is pulled and opened toward the cylinder side, and when the piston descends, it is pressed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a liquid ejection device for quantitatively taking out liquid such as detergent.

[0002]

[Prior art]

 A pump-type dispenser that is attached to the mouth of a container and used as a device for quantitatively extracting the liquid in the container is often used. However, depending on the shape and structure of the valve, there are many things that cause backflow and cannot discharge a fixed amount, and various improvements have been added, but as a result, the number of parts has increased. In particular, an increase in the number of operating parts in the cylinder causes an increase in the number of manufacturing and assembling work steps, which in turn increases the cost of the product, and is also a factor that impairs operational stability.

[0003]

[Problems to be solved by the device]

 It is an object of the present invention to provide a pump dispenser having a simple structure, therefore, a small number of parts, a small number of manufacturing and assembling steps, and a high sealing property.

[0004]

[Means for Solving the Problems]

 The cylinder 4 is clamped by the outward flange 11 attached to the upper part of the cylinder 4 between the top surface of the container body 1 and the inward flange 16 at the upper end of the mounting cylinder 5 fitted to the mouth neck 2 of the container body. 1 is pushed down against the biasing force of a spring 31, and an operating member which is vertically suspended in the cylinder and fits the head 9 with a nozzle on the upper end of the stem 10 is pushed down from the lower surface of the button device in the pushed state. In the dispenser in which the male screw 14 formed on the outer surface of the stem fitting cylinder 13 is detachably engaged with the female screw 7 on the inner surface of the cap 6 fitted on the upper surface of the cylinder, the tongue is inserted between the cylinder and the liquid suction tube. A unilateral primary valve is formed integrally with the cylinder.

[0005]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows the structure of the dispenser of the present invention. The container body 1 has a male screw 3 at its mouth / neck portion 2. The cylinder 4 engages the outward flange 11 attached to the upper portion thereof with the top surface of the container body through the packing 33, and the insertion tube 5 is screwed to the male screw 3 to thereby attach the insertion tube 5 The flange 11 is sandwiched between the inward flange 16 at the upper end and the top surface of the container opening. A reverse gradient portion 12 for retaining is provided around a cylinder upward protruding portion 15 protruding upward of the outward flange 11, and is fitted into an airtight cap 6 having a female screw 7 on the inner surface. A spring chamber 24 having a medium diameter and a primary valve chamber 25 having a small diameter are provided below the cylinder 4. A spring 31 is inserted into the spring chamber 24, a liquid suction pipe 32 is inserted into the lower end of the spring chamber 24, and a ventilation port 18 is opened above.

The stem 10 of the operating member is pushed into the cylinder against the bias of the spring 31. The upper end of the operating stem 10 is fitted into a stem fitting cylinder 13 that hangs from the lower surface of a head 9 having a nozzle 8, and a male screw 14 formed on the outer diameter of the stem fitting cylinder 13 is used as described above. It is screwed into the female screw 7. The operating stem 10 is in the form of a pipe having a liquid feeding hole 17, a bottom 26 is provided in the lower portion thereof, a downward flange 27 is provided below the working stem 10, and a through hole 28 communicating with the liquid feeding hole 17 is provided above the bottom flange 27. The small diameter portion 29 is integrally formed.

The primary valve 19 according to the gist of the present invention is located between the cylinder and the liquid suction pipe 32, and a valve seat 35 is provided with a valve hole 35 having an upwardly expanding taper, and the valve hole 3 is provided immediately above the valve hole 35. 5. A valve piece 36 having the same shape as that of 5, and a small amount of the lower end of which fits and comes into close contact with the valve hole 35 and is integrally formed of plastic with the cylinder with one end thereof connected to the valve seat 34. Is. On the other hand, a sliding valve body 20 that slides closely on the inner diameter of the cylinder 4 and slides on the operating stem 10 is fitted into the operating system 10 to form a secondary valve.

In the dispenser of the present invention having the above-described configuration, the lower inner peripheral edge 21 of the sliding valve body 20 abuts the shoulder portion 30 of the downward flange 27 to shield the passage 28 when the operating stem 10 thereof rises. Maintains airtightness in the cylinder 4. When it further rises, the inside of the valve chamber 25 becomes negative pressure, and the valve piece 36 of the primary valve 19 tilts upward with the connecting portion 37 as a fulcrum to form a gap between the valve piece 35 and the valve hole 35 so that the liquid suction pipe communicates with the inside of the cylinder 4. Therefore, liquid is sucked from the container 1 into the cylinder 4. On the contrary, when the operating stem 10 descends, the sliding valve body 20 is delayed in movement from the operating stem 10 due to the contact resistance with the inner surface of the cylinder 4, and the upper end surface 22 of the sliding valve body 20 contacts the stopper 23. Therefore, a gap is created between the lower inner peripheral edge 21 and the shoulder portion 30 of the downward flange 27 to open the through hole 28, and by further lowering, downward pressure is applied to the valve piece 36 of the primary valve 19, The lower end portion of the valve piece 36 is closely fitted to the valve hole 35, and the pressure in the cylinder 4 is increased to prevent the communication between the cylinder 4 and the liquid suction pipe 32, and the liquid in the valve chamber 25 and the cylinder 10 is increased. Will be discharged from the nozzle through the through hole 28 and the liquid feeding hole 17.

[0009]

[Effect of device]

 Conventionally, it was customary to insert a ball valve such as a steel ball into the valve chamber as the primary valve element in such a dispenser, but the ball valve purchasing cost, ball valve insertion work during product assembly, and ball valve There were various problems, such as requiring a valve pressing spring and sometimes forgetting to insert the ball valve. On the other hand, since the primary valve body of the dispenser of the present invention can be integrally molded with the cylinder portion 4 by plastic, no valve assembling work is required, and it is convenient not to forget to insert the valve. Therefore, the number of man-hours for manufacturing and assembling the device was reduced, and the manufacturing cost was reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of the present dispenser.

[Figure 2] Plan view of the cylinder

[Explanation of symbols]

 1 Container Body 4 Cylinder 6 Cap 8 Nozzle 9 Head 10 Operating Stem 17 Liquid Delivery Hole 18 Vent Port 19 Primary Valve 20 Sliding Valve Body 24 Spring Chamber 25 Valve Chamber 27 Downward Flange 28 Passage 31 Spring 32 Liquid Suction Pipe 34 Valve Piece

Claims (1)

[Scope of utility model registration request] 1. A dispenser detachably attached to a mouth portion of a container body containing a liquid and for taking out the liquid from the container body to the outside, the cap being detachably attached to the mouth portion. One end is attached to this cap, a middle part functions as a cylinder, and a liquid suction pipe is attached to the other end, and a housing slidably provided in this housing and one end is externally connected via the cap. To the piston, a head attached to one end of the piston to support the piston in a freely pushable manner, a tongue-shaped primary valve provided integrally with the cylinder between the liquid suction pipe and the cylinder, and A secondary valve provided, and a nozzle attached to the head for ejecting liquid from the cylinder to the outside. Dispenser that.