JPH10323587A - Pump with lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a pump to engage and disengage the lock of a depressing nozzle head several times arbitrarily. SOLUTION: This pump generates pumping action by depressing a depressing nozzle head 4 and returning it to the rise and sucks liquid in a container body fitted to jet it from a nozzle 10 of the depressing nozzle head 4. In this case, a guide cylinder 6 stands from a fitting cylinder 2 and is covered with an outer peripheral wall 7 of the depressing nozzle head 4 outside. A recessed groove 11 is peripherally provided on the outer periphery of the lower part of the guide cylinder 6. A tumbler-shaped slide ring 12 having bending elasticity is movably back and forth provided to the recessed groove 11 so that the ring 12 is engaged in the groove 11 by switching it between a front half part 13 and a rear half part 14 in accordance with the backward and forth movement. Moreover, a lock plate 15 which is freely disengageably made to intervene from the rear half part 14 to the lower end surface of the outer peripheral wall 7 of the depressing nozzle head 4 positioned at the rise upper limit is erected. Furthermore, a knob 16 is provided projectingly on the rear half part 14 or on the back surface of the lock plate 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump with a lock used by being attached to the mouth and neck of a container.

[0002]

2. Description of the Related Art Heretofore, a pump has a push-down nozzle head at an upper end of a pump body, has a mounting cylinder at an intermediate portion of the pump body, and has a suction pipe suspended from a lower end of the pump body. The mounting cylinder attaches to the mouth and neck of the container housing the contents such as liquid, and pushes down the depressing nozzle head and returns it to the up position to generate a pump action, and sucks up the liquid in the container through the suction pipe. There is also known an apparatus in which the nozzle is ejected from the nozzle of the press-down nozzle head (Japanese Utility Model Laid-Open No. 6-81653). Specifically, the pump is provided with a mounting cylinder attached to the mouth and neck of the container body at the outer periphery of the upper end of the vertical cylinder, protrudes the stem upward from inside the upper end of the cylinder, and pushes the stem against the upper end of the stem. A lowering nozzle head, a suction pipe is suspended from the lower end of the cylinder, and a guide cylinder surrounding the stem is erected from the upper surface of the mounting cylinder, and the press-down nozzle is provided outside the guide cylinder. The lower end opening outer peripheral wall provided on the head is vertically slidably fitted, and the above-described depressed nozzle head is depressed and raised to return to a pump action, thereby sucking the liquid in the attached container through the suction pipe. When sucking up, the nozzle is ejected from the nozzle of the press-down nozzle head. This type of pump is usually distributed on the market as a product mounted on the mouth and neck of a container body previously filled with contents. In this case, useless pushing down of a pushing down nozzle head or external force is required. Because the contents may leak due to unexpected lowering due to, for example, a cylindrical stopper having a virgin seal function is removably interposed between the press-down nozzle head located at the upper limit and the mounting cylinder, Unnecessary pushing down of the pushing down nozzle head and unexpected fall due to external force are prevented (Japanese Utility Model Laid-Open No. 6-81653).

[0003]

However, in this case, the cylindrical stopper or the like is to be broken and removed by the user, and once removed, it is difficult to use it again. Therefore, it is not possible to prevent unnecessary depression of the depression nozzle head which may occur after the breakage is removed, or unexpected fall due to external force, and it is impossible to prevent leakage of the contents due to this. Therefore,
An object of the present invention is to solve the above-mentioned problem by enabling the lock of the depression nozzle head to be freely engaged and disengaged many times.

[0004]

In order to achieve the above object, the invention of claim 1 includes a mounting cylinder 2 attached to the mouth and neck of a container body on the outer periphery of the upper end of a vertical cylinder 1 and the cylinder 1
A press-down nozzle head 4 is provided at the upper end of a stem 3 projecting upward from above, and a guide tube 6 surrounding the stem 3 is erected from the upper surface of the mounting tube 2, and the press-down nozzle is provided outside the guide tube. The outer peripheral wall 7 with the lower end released on the head 4 is vertically slidably fitted, and the lowering nozzle head 4 is depressed and raised to return to a pumping action, thereby sucking up the liquid in the attached container body. In the pump for ejecting the pressure from the nozzle 10 of the press-down nozzle head 4, a concave groove 11 is provided on the outer periphery of the lower part of the guide cylinder 6 and a dharma type slide ring 12 having bending elasticity is moved back and forth in the concave groove. The front half 13 and the rear half 14 are equipped so as to be movable back and forth so that they can be fitted to each other, and can be freely inserted and removed from the rear half 14 to the lower end surface of the outer peripheral wall 7 of the press-down nozzle head 4 located at the upper limit. To intervene in Erected a click plate 15, further, formed by projecting the knob 16 on the rear surface of the rear half portion 14 to lock plate 15.

According to a second aspect of the present invention, there is provided the pump with a lock according to the first aspect, wherein the knob 16 is a vertical piece having a T-shaped or Y-shaped cross-section, and the lock plate 15 is inserted. It has a size that fits within the range of the mounting cylinder 2 in plan view.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment according to the first and second aspects of the present invention. The illustrated one is provided with a mounting cylinder 2 of an internally threaded cylinder which is detachably screwed onto the mouth and neck of the container body on the outer periphery of the upper end of a vertical cylinder 1 constituting the pump body. A stem 3 is projected upward and downward from the inside so as to be movable upward and downward, a press-down nozzle head 4 is fitted to an upper end of the stem, and a suction pipe 5 is suspended from a lower end of the cylinder 1.

A guide tube 6 surrounding the stem 3 is erected from the upper surface of the mounting tube 2, and an outer peripheral wall 7 with a lower end opened on a press-down nozzle head 4 is raised and lowered outside the guide tube 6. The loose fitting allows a loose gap to be formed between the outer peripheral wall and the guide cylinder 6 by this loose fitting, and the outside air is introduced into the container from the guide cylinder 6 to the cylinder 1. An outside air introduction passage 9 is provided to supply and prevent negative pressure inside the container.

The lower end of the stem 3 is connected to an annular piston 17 fitted in the cylinder 1 so as to be slidable up and down, and is urged upward by a coil spring 18 built in the cylinder 1. A suction valve 19 is provided at a lower part in the cylinder 1, and a discharge valve 20 is provided at an upper part in the stem 3.
A small air hole 21 which is a part of the outside air introduction passage 9 is formed in the upper part of the cylinder 1, and the air hole, that is, the outside air introduction passage 9 is closed by an annular piston 17 located at the upper limit. The push-down nozzle head 4 has a stem 3
A nozzle 10 that communicates with the upper end of the nozzle is protruded.

A groove is formed on the outer periphery of the lower end of the guide cylinder 6.
11 is provided, and a dharma-shaped slide ring 12 having bending elasticity is provided in the groove so that the front half 13 and the rear half 14 can be switched and fitted in the front half 13 and the rear half 14 with the front and rear movement.
From 14, the press-down nozzle head 4 located at the upper limit
Lock plate that can be freely inserted and removed from the lower end surface of the outer peripheral wall 7
16 are integrally erected, and the rear half 14 to the lock plate 15
A knob 16 is integrally protruded from the rear surface, and the knob is formed into a vertical piece having a substantially Y-shaped cross section, and is sized to fit within the range of the mounting cylinder 2 in a plan view when the lock plate 15 is inserted. ing. It is needless to say that the knob may be a vertical piece having a T-shaped cross section.

[0010] With the above configuration, the mounting pipe 2 is screwed to the mouth and neck of the container housing the contents such as liquid, and the suction pipe 5 is inserted deep into the container. In this state, when the lock plate 15 is still inserted into the lower end surface of the outer peripheral wall 7 of the press-down nozzle head 4, the press-down nozzle head 4 is prevented from descending by the lock plate 15, the pump does not work, and the nozzle does not work. There is no leakage of the contents from 10. The hot and cold water that is going to enter the container is temporarily blocked by the upright guide cylinder 6 and the outer peripheral wall 7 of the press-down nozzle head 4 covering the guide cylinder 6.

Next, when the user pulls the knob 16 and pulls it rearward to fit the front half 13 of the Dharma type slide ring 12 into the concave groove 11, the lock plate 15 is pushed down from the lower end surface of the outer peripheral wall 7 of the nozzle head 4. The nozzle head 4 can be pushed down, and the pump can be operated and operated. Therefore,
In this state, the nozzle head 4 is pushed down against the coil spring 18 and the coil spring 18 is pushed down.
If it is raised and returned by the elasticity of 18, the pump operates and the contents in the container are ejected from the nozzle 10 of the nozzle head 4 to the outside.

[0012]

According to the first and second aspects of the present invention,
With the above-described configuration, the darma-type slide ring 12 is advanced by the knob 16 to fit the rear half portion 14 into the concave groove 11, and the lock plate 15 is pushed down and inserted into the lower end surface of the outer peripheral wall 7 of the nozzle head 4. Thus, the lock plate 15 can prevent the depression of the press-down nozzle head 4, that is, the operation of the pump, and can appropriately prevent the leakage of the contents due to the unnecessary press-down of the press-down nozzle head 4 and the unexpected lowering due to the external force. In addition, the Dharma type slide ring 12 is retracted with the knob 16 so that the first half
13 is fitted into the groove 11, and the lock plate 15 is pushed down and pulled out from the lower end surface of the outer peripheral wall 7 of the nozzle head 4.
, The lock of the press-down nozzle head 4 can be easily released, and the operation and operation of the pump by the press-down of the press-down nozzle head 4 can be enabled. Therefore, the lock of the press-down nozzle head 4, that is, the lock of the pump can be arbitrarily and repeatedly engaged and disengaged, and it can be used as it is not only in the product distribution stage but also in the stage of use by the consumer, and the operation handling is It is simple and very useful. Further, it can be provided at a low cost with a simple structure and production.

[0013] In addition, according to the invention of claim 2, the knob
16 is a vertical piece having a T-shaped or Y-shaped cross section, and has a size within the range of the mounting cylinder 2 in a plan view when the lock plate 15 is inserted, so that the knob 16 serves as a rib of the lock plate 15. The lock plate 15 can function accurately and powerfully, and the knob 16 can be reliably pinched from its shape without slipping, The operation and handling are easy, and the knob 16 does not interfere.

[Brief description of the drawings]

FIG. 1 is a side view of a press-down nozzle head lock state showing an embodiment according to the first and second aspects of the present invention.

FIG. 2 is a plan view of a depression nozzle head lock state in the embodiment.

FIG. 3 is a side view of a state of releasing a press-down nozzle head lock in the embodiment.

FIG. 4 is an enlarged plan view of a main part member according to the embodiment.

FIG. 5 is an enlarged cross-sectional side view of a state of a press-down nozzle head lock state in the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cylinder 2 ... Mounting cylinder 3 ... Stem 4 ... Depressed nozzle head 5 ... Suction pipe 6 ... Guide cylinder 7 ... Outer peripheral wall 8 ... Gap 9 ... External air introduction path 10 ... Nozzle 11 ... Groove 12 ... Dharma type slide ring 13 ... first half 14 ... second half 15 ... lock plate 16 ... knob 17 ... annular piston 18 ... coil spring 19 ... suction valve 20 ... discharge valve 21 ... air hole

Claims (2)

[Claims] 1. A vertical cylinder 1 has a mounting cylinder 2 attached to the mouth and neck of the container body at the outer periphery of the upper end thereof, and a lowering nozzle head 4 at an upper end of a stem 3 protruding upward from the cylinder 1. A guide tube 6 surrounding the stem 3 is erected from the upper surface of the mounting tube 2, and an outer peripheral wall 7, which is provided at the lower end and provided on the press-down nozzle head 4, is fitted to the outside of the guide tube in a vertically slidable manner. In the pump that pushes down the nozzle head 4 and raises and returns the same, a pump action is generated to suck up the liquid in the attached container body and eject it from the nozzle 10 of the nozzle head 4. A concave groove 11 is provided on the outer periphery of the lower part of the cylinder 6, and a Dharma type slide ring 12 having bending elasticity is formed in the concave groove so that the front and rear portions 13 and 14 can be selectively moved forward and backward with forward and backward movement. And equip it again A lock plate 15 is provided upright from the rear half 14 so as to be freely inserted into and removed from the lower end surface of the outer peripheral wall 7 of the press-down nozzle head 4 located at the ascending limit. A pump with a lock, characterized by 16 protruding parts. 2. The knob 16 is a vertical piece having a T-shaped or Y-shaped cross section, and is sized to fit within the range of the mounting cylinder 2 in a plan view when the lock plate 15 is inserted. Pump with lock as described.