JP3751417B2 - Pump with lock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pump with a lock that is used by being attached to the mouth and neck of a container body.
[0002]
[Prior art]
Conventionally, a pump having a push-down nozzle head at the upper end of the pump main body, a mounting cylinder at the middle of the pump main body, and a suction pipe suspended from the lower end of the pump main body. It is attached to the mouth and neck of the container body that contains the contents, etc., and the push-down nozzle head is pushed down and lifted back to produce a pump action, and the liquid in the container body is sucked up through the suction pipe and pushed down. What is ejected from the nozzle of the nozzle head is known (Japanese Utility Model Publication No. 6-81653).
Specifically, the pump includes a mounting cylinder attached to the mouth and neck of the container body on the outer periphery of the upper end of the bowl-shaped cylinder. The stem projects upward from the inside of the upper end of the cylinder and is pushed onto 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 depression nozzle is disposed outside the guide cylinder. The outer peripheral wall of the lower end release provided on the head is slidably fitted up and down, the pump nozzle action is generated by pushing down and returning the push-down nozzle head, and the liquid in the attached container is sucked through the suction pipe. When sucked up, it is ejected from the nozzle of the pressed-down nozzle head.
This type of pump is normally distributed in the market as a product in a state where it is mounted on the mouth and neck of a container body that has been pre-filled with contents, and in this case, unnecessary depression or external force of the depression nozzle head is distributed. Because the contents may leak due to unexpected lowering due to, a cylindrical stopper having a virgin seal function is detachably interposed between the pressing nozzle head located at the upper limit and the mounting cylinder, Unnecessary pressing down of the pressing nozzle head and unexpected lowering due to external force are prevented (Japanese Utility Model Publication No. 6-81653).
[0003]
[Problems to be solved by the invention]
However, in this case, the cylindrical stopper or the like is to be broken and removed by the consumer, and once removed, it is difficult to use it again. Therefore, it is impossible to prevent unnecessary depression of the pushed-down nozzle head that may occur after breaking and removal, or unexpected lowering due to external force, and leakage of contents due to this cannot be prevented.
Accordingly, the present invention is intended to solve the above-mentioned problems by allowing the lock of the push-down nozzle head to be arbitrarily engaged and disengaged over and over again.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the invention of claim 1 is provided with a mounting cylinder 2 attached to the mouth and neck of the container body on the outer periphery of the upper end of the bowl-shaped cylinder 1 and pushed onto the upper end of the stem 3 protruding upward from the cylinder 1. A guide cylinder 6 is provided which has a lowered nozzle head 4 and surrounds the stem 3 from the upper surface of the mounting cylinder 2, and an outer peripheral wall 7 for lower end release provided on the pressed nozzle head 4 outside the guide cylinder. Are fitted so as to be slidable up and down, and the push-down nozzle head 4 is pushed down and returned to rise to produce a pumping action. When the liquid in the attached container body is sucked up, the nozzle 10 of the push-down nozzle head 4 is sucked. In the pump to be ejected from
As well as circumferentially recessed groove 11 in the lower periphery of the guide tube 6,
The recessed groove, which is equipped with a slide ring 12 which is continuous molding over the entire circumference with an elastic bending, the slide ring, the outer periphery, longer and left and right side intermediate portion substantially flat in the longitudinal direction By forming the ring hole in a dalma shape that is confined inwardly in the middle part on both the left and right sides, the rear part 14 and the front half part 13 can be moved back and forth and the concave part is formed in the rear half part 14 and the front half part 13 It is provided so that it can be switched and fitted to 11 .
Also, standing from the latter half portion 14 of the slide ring, located ascent limit provided so as to vent freely intervene insert to the outer peripheral wall 7 the lower end surface of the depression nozzle head 4, a top view inferior arc of the lock plate 15 And
Further, a knob 16 protrudes from the rear half 14 or the rear surface of the lock plate 15.
[0005]
The invention of claim 2 is the pump with the lock of claim 1 described above, wherein the knob 16 is a vertical piece having a T-shaped or Y-shaped cross section, and the locking plate 15 is inserted in a plan view in plan view. The size fits within the range of the mounting cylinder 2.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The drawings show embodiments according to the inventions of claims 1 and 2.
The illustrated one is provided with a mounting cylinder 2 of an internal threaded screw that is detachably screwed to the mouth and neck of the container body on the outer periphery of the upper end of a bowl-shaped cylinder 1 constituting the pump body. A stem 3 protrudes upward and downward from the inside, a push-down nozzle head 4 is fitted to the upper end of the stem, and a suction pipe 5 is suspended from the lower end of the cylinder 1.
[0007]
A guide cylinder 6 surrounding the stem 3 is erected from the upper surface of the mounting cylinder 2, and an outer peripheral wall 7 of a lower end release provided on the push-down nozzle head 4 is loosened up and down slidably on the outside of the guide cylinder. By this loose fitting, a ventilation gap 8 is formed between the outer peripheral wall and the guide cylinder 6 and outside air is supplied into the container body from the guide cylinder 6 to the cylinder 1. An outside air introduction path 9 for preventing negative pressure in the container body is provided.
[0008]
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 these are urged upward by a coil spring 18 incorporated in the cylinder 1.
A suction valve 19 is provided in the lower part of the cylinder 1, and a discharge valve 20 is provided in the upper part of the stem 3. Further, a small air hole 21 which is a part of the outside air introduction path 9 is formed in the upper part of the cylinder 1, and the air hole, that is, the outside air introduction path 9 is closed by an annular piston 17 positioned at the upper limit.
A nozzle 10 that communicates with the upper end of the stem 3 protrudes from the lower nozzle head 4 at the upper part of the front surface.
[0009]
Thus, a concave groove 11 is provided on the outer periphery of the lower end portion of the guide tube 6, and a slide ring 12 with a Dalma-shaped ring hole having bending elasticity is provided in the concave groove with the front half portion 13 in accordance with the longitudinal movement. It is equipped to move back and forth so that it can be switched and fitted in the latter half 14. The slide ring is continuously formed over the entire periphery, and the outer periphery of the slide ring is oval . Further, from the rear half portion 14, a lock plate 15 having an inferior arc shape in a top view is erected integrally with the lower end surface of the outer peripheral wall 7 of the pressing nozzle head 4 located at the upper limit so as to be freely inserted and removed. . Further, a knob 16 is integrally projected from the rear half 14 to the rear surface of the lock plate 15, and the knob is formed into a vertical piece having a substantially Y-shaped cross section. The size is set within the range of the tube 2. Needless to say, the knob may be a vertical piece having a T-shaped cross section.
[0010]
With the above configuration, the suction pipe 5 is inserted deeply into the container body by being screwed onto the mouth and neck of the container body containing the contents such as liquid by the mounting cylinder 2.
In this state, when the lock plate 15 is still inserted into the lower end surface of the outer peripheral wall 7 of the pressed-down nozzle head 4, the pressed-down nozzle head 4 is prevented from being lowered by the lock plate 15, and the pump does not work. No content leaks from 10. In addition, the hot water which tries to penetrate | invade into the container body is once blocked | prevented by the outer periphery wall 7 of the guide cylinder 6 which stands up, and the pressing-down nozzle head 4 which covers this.
[0011]
Next, when the knob 16 is pinched and pulled backward and the front half 13 of the Dalma-type slide ring 12 is fitted into the concave groove 11, the lock plate 15 comes off from the lower end surface of the outer peripheral wall 7 of the push-down nozzle head 4 and is pushed. The lowering nozzle head 4 can be pushed down, and the pump can be operated and operated. Therefore, if the pressing nozzle head 4 is pushed down against the coil spring 18 and returned to the upper position by the elasticity of the coil spring 18 in this state, the pump operates and the contents in the container are pushed down. It is ejected from the nozzle 10 of the lowered nozzle head 4 to the outside.
[0012]
【The invention's effect】
According to the first and second aspects of the present invention, since the configuration is as described above, the dharma-type slide ring 12 is advanced by the knob 16 so that the rear half portion 14 is fitted in the concave groove 11 and the lock plate 15 is pushed. By inserting into the lower end surface of the outer peripheral wall 7 of the lowering nozzle head 4, the lowering of the pressing nozzle head 4, that is, the operation of the pump can be prevented by this lock plate 15. It is possible to prevent the leakage of contents due to the above.
Further, the dharma-shaped slide ring 12 is moved backward by the knob 16 so that the front half 13 is fitted in the concave groove 11 and the lock plate 15 is pulled out from the lower end surface of the outer peripheral wall 7 of the push-down nozzle head 4. Thus, the lock of the press-down nozzle head 4 can be easily released, and the operation / operation of the pump can be enabled by pressing down the press-down nozzle head 4.
Therefore, the push-down nozzle head 4, that is, the lock of the pump can be arbitrarily engaged and disengaged, and can be used as it is not only in the merchandise distribution stage but also in the use stage of the consumer. It is easy and convenient. Furthermore, it is possible to provide the structure and manufacture with low cost.
[0013]
In addition, according to the second aspect of the present invention, the knob 16 is a vertical piece having a T-shaped or Y-shaped cross section, and fits within the range of the mounting cylinder 2 in a plan view when the lock plate 15 is inserted. Therefore, the knob 16 serves as a rib of the lock plate 15 and a support piece for preventing tilting, and the lock plate 15 can be functioned accurately and powerfully. It can be pinched reliably without slipping, its handling is easy, and the knob 16 does not get in the way.
[Brief description of the drawings]
FIG. 1 is a side view of a pressed nozzle head lock posture showing an embodiment according to the first and second aspects of the present invention;
FIG. 2 is a plan view of a pressed nozzle head lock posture in the same embodiment.
FIG. 3 is a side view of a pressing nozzle head lock release posture in the same embodiment;
FIG. 4 is an enlarged plan view of a main part member in the same embodiment.
FIG. 5 is an enlarged cut-away side view of a pressed nozzle head lock posture in the same embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Cylinder 2 ... Installation cylinder 3 ... Stem 4 ... Push-down nozzle head 5 ... Suction pipe 6 ... Guide cylinder 7 ... Outer peripheral wall 8 ... Clearance 9 ... Outside air introduction path 10 ... Nozzle
11 ... concave groove 12 ... Dharma 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)

A mounting cylinder 2 attached to the mouth and neck of the container body is provided on the outer periphery of the upper end of the bowl-shaped cylinder 1, and a pressing nozzle head 4 is provided on the upper end of the stem 3 protruding upward from the cylinder 1. A guide cylinder 6 surrounding the stem 3 is erected, and an outer peripheral wall 7 of a lower end release provided on the pressing nozzle head 4 is fitted to the outside of the guide cylinder so as to be slidable up and down. In the pump which pushes down the nozzle head 4 and raises it back to produce a pump action, sucks up the liquid in the attached container body and ejects it from the nozzle 10 of the pushed-down nozzle head 4.
As well as circumferentially recessed groove 11 in the lower periphery of the guide tube 6,
The recessed groove, which is equipped with a slide ring 12 which is continuous molding over the entire circumference with an elastic bending, the slide ring, the outer periphery, longer and left and right side intermediate portion substantially flat in the longitudinal direction By forming the ring hole in a dalma shape that is confined inwardly in the middle part on both the left and right sides, the rear part 14 and the front half part 13 can be moved back and forth and the concave part is formed in the rear half part 14 and the front half part 13 It is provided so that it can be switched and fitted to 11 .
Also, standing from the latter half portion 14 of the slide ring, located ascent limit provided so as to vent freely intervene insert to the outer peripheral wall 7 the lower end surface of the depression nozzle head 4, a top view inferior arc of the lock plate 15 And
Furthermore, the pump with a lock | rock characterized by the knob 16 projectingly provided in the rear surface of the latter half part 14 thru | or the lock board 15.  The pump with a lock according to claim 1, wherein 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. .