JPH10277448A - Trigger dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trigger dispenser capable of smooth trigger jetting either in a upright or in an inverted position. SOLUTION: This dispenser has a path switching valve 20 for feeding liquid L in a container 1 to a pump part 11. The path switching valve 20 consists of a cylindrical body 2 arranged diagonally inclined, and the upper end of the cylindrical body 21 is connected to a liquid sending pipe 24 reaching a bottom part 3 of the container 1, and the lower end 21b thereof is opened near a top part 2 inside the container 1. And in the intermediate part of the cylindrical wall of the cylindrical body 31, an opening hole 25 for sending liquid to a suction valve 17 of the pump part 1 is formed, and a spindle body 28 is inserted therein so as to be freely movable back and forth in the cylindrical body 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trigger dispenser capable of ejecting or spraying a liquid in a container by pulling / returning a trigger lever (hereinafter referred to as "trigger operation"). The present invention relates to a trigger dispenser capable of smoothly ejecting a liquid both when standing upside down and when standing upside down.

[0002]

2. Description of the Related Art A fixed amount of liquid such as liquid cosmetics, various liquid detergents, finishing liquids, antifungal and disinfecting liquids, bleaching liquids, and water in a container is set on a top of a container, and a trigger lever is triggered (pulled). Trigger dispensers that can be sprayed or sprayed by performing back / return) have been widely used.

FIG. 5 shows the structure of a general trigger dispenser. The trigger dispenser 100 basically includes a pump unit 101 and a liquid sending tube 103 for sending the liquid L in the container 102 toward the pump unit 101.
A pump unit 101 for ejecting the liquid pressurized by the pump unit 101, and a trigger lever 105 for manually changing the internal volume of the pump unit 101. Pump part 1
01 is a variable volume chamber 10 usually made of a corrugated cylinder, a piston cylinder, or a diaphragm.
6, a suction valve 107 for sucking a liquid therein, and an ejection valve 108 for ejecting the liquid L pressurized in the variable capacity chamber 106 toward the ejection section 104. The internal volume can be repeatedly increased and decreased by a trigger operation of the trigger lever 105. The suction valve 107 and the discharge valve 108 are usually steel balls 109, 110, respectively.
And a ball valve using the same. Further, the liquid sending tube 103 is extended to the bottom of the container so that the liquid L in the container 102 can be jetted without waste.

The trigger dispenser 100 operates roughly as follows. That is, the trigger lever 10
When 5 is pulled, the volume of the variable capacity chamber 106 is reduced by the connecting rod 111 interlocked with it, and the liquid L therein is pressurized. Since the steel ball 109 of the suction valve 107 closes the liquid passage to prevent the liquid L from flowing backward, the liquid L is pushed out toward the injection unit 104 by pushing up the steel ball 110 of the ejection valve 108. Since the trigger lever 105 is urged in a direction to increase the volume of the variable capacity chamber 106, if the pull of the trigger lever is loosened, the inside of the variable capacity chamber 106 becomes negative pressure. The liquid L in the container 102 passes through the liquid feeding tube 103 to push up the steel ball 109 of the suction valve 107 to be introduced and filled into the variable capacity chamber 106 because the liquid passage is closed and the backflow is prevented. By repeating this trigger operation, the liquid in the container can be continuously ejected.

[0005]

Since the conventional trigger dispenser has the above-mentioned structure, it is a principle that the container equipped with the trigger dispenser is used in an upright state.
If the trigger is triggered in an inverted state, the suction valve 10
Since the steel ball 109 of No. 7 falls down and loses the ability to prevent backflow, even if the volume of the variable capacity chamber 106 is reduced by pulling the trigger lever 105, the liquid L is ejected from the ejection valve 108 to the injection unit 1
04 and cannot be pumped toward the liquid-volume chamber 10, and the trigger lever 105 is returned to return to the variable capacity chamber 10.
Even if the pressure is set at a negative pressure, the liquid cannot be sucked in the inverted state because the tip of the liquid sending tube 103 extending to the bottom of the container 102 projects into the gas phase in the container.

[0006] However, the above-mentioned container with a trigger dispenser is used in an actual use scene, for example, for spraying hair inside the hair, spraying a detergent or disinfectant to a low position in a small room such as a bathroom or a toilet, or beforehand. In many cases, for example, when the user wants to jet the liquid toward the container, he or she wants the container to be extremely inclined or inverted so as to jet the liquid. Therefore, there has been a demand for a trigger dispenser that enables a smooth trigger injection when the erect or the inverted. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a trigger dispenser which enables a smooth trigger injection even when erected and inverted.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is a pump type dispenser which is mounted on the top of a container and which can eject liquid in the container by operating a trigger lever. , A pump unit, an injection unit for injecting the liquid pressurized by the pump unit, and a passage switching valve for supplying the liquid in the container to the pump unit. It comprises a variable capacity chamber that changes the internal volume by a return operation, a suction valve that sucks liquid into the variable capacity chamber, and a pressure release valve that pressurizes the liquid pressurized in the variable volume chamber toward the ejection unit. The passage switching valve comprises a cylindrical body which is inclined in claim 1 and vertically arranged in claim 2, and an upper end of the cylindrical body is connected to a liquid feed tube reaching a bottom of the container. , The lower end of the cylinder is inside the container In the middle of the cylindrical wall of the cylindrical body, there is formed an opening through which the liquid is supplied to the suction valve, and a weight that can reciprocate in the cylindrical body is provided inside the cylindrical body. When the container is inserted and the container is upright, this weight is at the lower end of the cylinder and closes the lower end opening, and the upper end of the cylinder forms a liquid passage. Provided is a trigger dispenser which moves to the upper end side of a cylindrical body by its own weight to close an upper end and open a lower end to form a liquid passage. The inner surface of the cylindrical body is preferably cylindrical, and the weight is preferably cylindrical or spherical. Further, it is preferable that the suction valve and the pressure output valve include a liquid passage and an opening / closing plate disposed on an outlet side thereof.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. (Embodiment 1) First, a trigger dispenser according to claim 1 of the present invention will be described with an embodiment. FIG.
The trigger dispenser 10 according to the first embodiment schematically shown in FIG.
Is a pump-type dispenser that is mounted on the top 2 of the container 1 and that can inject the liquid L in the container 1 by operating the trigger lever 13. Ejecting unit 12 for ejecting the liquid L
And a passage switching valve 20 for supplying the liquid L in the container 1 to the pump unit 11.

The pump section 11 includes a trigger lever 13
Flexible corrugated cylinder 1 that changes its internal volume by being expanded and contracted by a connecting rod 14 that is interlocked with the trigger operation of
5, a suction valve 17 for sucking the liquid L into the variable capacity chamber 16, and the liquid L pressurized in the variable capacity chamber 16 is directed to the injection unit 12 via the liquid pipe 18. And an extruding valve 19 for extruding.

The above-mentioned passage switching valve 20 comprises a cylinder 21 arranged at an angle, and an upper end 21a of the cylinder 21 is
It is connected to a liquid feed tube 24 that reaches the bottom 3 of the container 1 via a bent tube 23. Also, the lower end 21 of the cylindrical body 21
b is open near the top 2 inside the container 1. An opening 25 is formed in the middle of the cylindrical wall of the cylindrical body 21, and the opening 25 is connected to the suction valve 17 by a conduit 26. The inner surface of the cylindrical body 21 is formed in a cylindrical shape, and a cylindrical weight 28 that can reciprocate in the cylindrical body is inserted therein.
Are locked by annular members 29 provided at the upper and lower ends of the cylindrical body so as not to fall off. This cylinder 21
Has an inner diameter of, for example, 2 mm to 10 mm, preferably 3 mm to 5 mm, and a length of the cylindrical body 21 of, for example, 5 mm to 30 mm, preferably 10 mm.
mm to 20 mm.

Each of the suction valve 17 and the pressure release valve 19 is provided with a rubber opening / closing plate on the outlet side of a liquid through hole formed on the lower surface. The liquid that passes can push up the open / close plate and circulate,
Even if the liquid above the opening / closing plate is pressurized, the opening / closing plate is in close contact with the liquid passage so that the liquid cannot flow backward downward.

Next, the operation when the trigger dispenser 10 is used upright will be described with reference to FIG. With the container 1 upright, the trigger lever 13
Is pulled, the connecting rod 1 connected to the trigger lever 13
4 compresses the corrugated cylinder 15 and pressurizes the inside of the variable capacity chamber 16. Due to this pressurization, the liquid L in the variable capacity chamber 16 pushes up the opening / closing plate of the pressure release valve 19,
The liquid is injected from the injection unit 12 via the liquid passage 18. At this time, the opening / closing plate of the suction valve 17 is in close contact with the liquid passage, so that backflow in the direction of the container 1 is prevented.

Next, when the trigger lever 13 is returned, the trigger lever 13 is urged by a spring (not shown) in the direction in which the corrugated cylinder 15 is extended, so that the corrugated cylinder 15 is extended. Inside becomes negative pressure. When the pressure in the variable capacity chamber 16 becomes negative, only the suction valve 17 is opened because the backflow of the pressure output valve 19 is prevented, and the liquid L in the cylinder 21 is removed from the variable capacity chamber 1.
6 and fill it. At this time, the weight 28 in the cylinder 21 is at the lower end 21b of the cylinder by its own weight,
It is locked by an annular body 29. For this reason, the lower end 2
The opening 1b is closed, and the upper end 21a is
, The liquid L in the container 1 eventually passes through the liquid supply tube 24, the bent tube 23, the cylinder 21, the opening 25, the conduit 26, and the suction valve 17 and the variable capacity chamber. 16 to be filled. As the liquid L in the container 1 is consumed, the gas phase G in the container 1
Is reduced in pressure, but outside air is supplied by a pressure adjusting valve (not shown), and the atmospheric pressure is maintained in the container. By the above operation, the trigger dispenser 10 can continuously eject the liquid L from the ejection unit 12 by repeating the trigger operation of the trigger lever 13.

Next, the operation when the trigger dispenser 10 is used upside down will be described with reference to FIG. In FIG. 2, when the trigger lever 13 is pulled in a state where the container 1 is inverted, the corrugated cylinder 15 is compressed by the connecting rod 14 connected to the trigger lever 13, and the inside of the variable capacity chamber 16 is pressurized. Due to this pressurization, the liquid L in the variable capacity chamber 16 pushes down the opening / closing plate of the extruding valve 19 and is jetted from the jetting unit 12 via the liquid passage 18. At this time, the opening / closing plate of the suction valve 17 is in close contact with the liquid passage, so that backflow in the direction of the container 1 is prevented.

Next, when the trigger lever 13 is returned, the corrugated cylinder 15 is extended, whereby the inside of the variable capacity chamber 16 becomes a negative pressure. When the pressure in the variable capacity chamber 16 becomes a negative pressure, the backflow of the discharge valve 19 is prevented, so that the suction valve 17
Only the liquid is opened, and the liquid L in the cylindrical body 21 is introduced into the variable capacity chamber 16 to fill it. When container 1 is inverted,
The weight 28 in the cylindrical body 21 moves down to the upper end 21a (at the time of erecting) by descending in the cylindrical body 21 by its own weight. Therefore, the opening of the upper end 21a is closed. On the other hand, since the lower end 21b (at the time of erecting) is open toward the liquid L in the container 1, the liquid L in the container 1 ends up with the cylindrical body 21, the opening 25, It is introduced into the variable volume chamber 16 via the conduit 26 and the suction valve 17 and is filled.

With the above-described operation, the trigger dispenser 10 is in the inverted state by repeating the trigger operation of the trigger lever 13 until the liquid L in the container 1 is consumed and the water level reaches the lower end 21b of the passage switching valve 20. In this case, the liquid L can be continuously ejected from the ejection unit 12. In the inverted state, the distal end of the liquid feed tube 24 is open to the gas phase G of the container 1, but since the upper end 21 a of the cylindrical body 21 is sealed by the weight 28, air is stored in the variable capacity chamber 16 during the trigger operation. Will not be sucked.

In the first embodiment, the same effect can be obtained by using a spherical weight instead of the cylindrical weight 28.
The suction valve 17 and the pressure release valve 19 used are composed of a liquid passage and an opening / closing plate provided at the outlet side thereof. Flap type, a butterfly type in which the open / close plate is divided into two and each is swingably supported at the center of the liquid through hole, or an elastic support so that the entire open / close plate can float from the liquid through hole. There is a floating type and the like, and any of these may be used. Further, other valve mechanisms, for example, a dome-shaped rubber molded body having a cut in the center mounted on the liquid through hole or a steel ball valve can be used.

In the above embodiment, the passage switching valve 20 is inserted into the container 1. However, if a conduit is connected to the lower end 21b and the end of this conduit is opened inside the top of the container 1, the passage switching valve 20 is inserted. The valve 20 itself can be placed on the top of the container 1 and housed in a housing integrated with the pump unit 11 and the like. According to this configuration, the trigger dispenser 10
Can be detachably attached to a container having a relatively small opening diameter by a known connection method such as screwing. Therefore, the present invention also includes a trigger dispenser in which the passage switching valve is housed in a housing integrated with the pump unit and the injection unit, and the lower end of the tubular body is opened near the top in the container via the conduit. is there.

(Embodiment 2) Next, a trigger dispenser according to a second embodiment of the present invention will be described with reference to an embodiment. In the following description, the same elements as those in the first embodiment are denoted by the same reference numerals, and the description is omitted or simplified. The trigger dispenser 30 of the second embodiment schematically shown in FIG.
The trigger lever 13 is attached to the top of a container (not shown).
Is a pump-type dispenser that can inject the liquid L in the container by the operation of (1), a pump unit 11, and an injection unit 12 that injects the liquid L pressurized in the pump unit 11.
And a passage switching valve 40 for supplying the liquid L in the container to the pump section 11. This trigger dispenser 3
At 0, the configurations of the pump unit 11, the injection unit 12, and the trigger lever 13 are the same as those of the first embodiment.

The passage switching valve 40 is composed of a vertically arranged cylindrical body 41, and the upper end 41 a of the cylindrical body 41 is connected via a side pipe 43 to the liquid sending tube 24 reaching the bottom of the container.
It is connected to the. The lower end 41b of the cylindrical body 41 is open near the top inside the container. Also, this cylinder 41
An opening 45 is formed in the middle of the cylindrical wall of the pump unit 11, and the opening 45 is connected to the suction valve 17 of the pump unit 11 by a conduit 46. The inner surface of the cylindrical body 41 is formed in a cylindrical shape, and a spherical weight 48 that can reciprocate in the cylindrical body is inserted therein. The ring members 49 are provided so that they do not fall off from the inside of the cylindrical body. This cylinder 41
Has an inner diameter of, for example, 2 mm to 10 mm, preferably 3 mm to 5 mm, and a length of the cylindrical body 41 of, for example, 5 mm to 30 mm, preferably 10 mm.
mm to 20 mm.

Next, the operation when the trigger dispenser 30 is used upright will be described with reference to FIG. In FIG. 3, when the trigger lever 13 is pulled in a state where the container is upright, as in the case of the first embodiment,
The corrugated cylinder is compressed by the connecting rod 14 connected to the trigger lever 13, the inside of the variable capacity chamber 16 is pressurized, and the liquid L in the variable capacity chamber 16 pushes up the opening / closing plate of the pressure release valve 19, and is ejected from the ejecting unit 12. Is done.

Next, when the trigger lever 13 is returned, the pressure inside the variable capacity chamber 16 becomes negative, and the cylinder 41
Is introduced into the variable volume chamber 16. At this time, the weight 48 in the cylinder 41 is moved by its own weight to the lower end 41 of the cylinder.
b and is locked by an annular body 49. For this reason, the opening of the lower end 41b is closed and the upper end 41a is open toward the liquid feed tube 24, so that the liquid L in the container eventually ends up with the liquid feed tube 24, the side pipe 43, and the cylinder 4
1. It is introduced into the variable volume chamber 16 via the opening 45, the conduit 46, and the suction valve 17, and is filled therein. By the above operation, this trigger dispenser 3
In the case of 0, the liquid L can be continuously ejected from the ejection unit 12 by repeating the trigger operation of the trigger lever 13.

Next, the operation when the trigger dispenser 30 is used upside down will be described with reference to FIG. In FIG. 4, when the trigger lever 13 is pulled in a state where the container is inverted, the inside of the variable capacity chamber 16 interlocked with the trigger lever 13 is pressurized. The opening / closing plate is pushed down, and the fuel is ejected from the ejection unit 12.

Next, when the trigger lever 13 is returned, the pressure inside the variable capacity chamber 16 becomes negative pressure, the suction valve 17 opens, and the liquid L in the cylinder 41 is introduced into the variable capacity chamber 16. At this time, the weight body 48 in the cylindrical body 41 is moving down to the upper end 41a (at the time of erecting) by falling within the cylindrical body 41 by its own weight. For this reason, the opening of the upper end 41a is closed. On the other hand, since the lower end 41b (at the time of erecting) is open toward the liquid L in the container, the liquid L in the container ends up flowing through the opening of the lower end 41b from the cylinder 41, the opening 45, and the conduit 46. , And into the variable capacity chamber 16 via the suction valve 17 to fill it. By the above operation, the trigger dispenser 30 can continuously eject the liquid L by repeating the trigger operation of the trigger lever 13 even in an inverted state.

According to the operation described above, the trigger dispenser 30 repeats the trigger operation of the trigger lever 13 until the liquid L in the container is consumed in the upright state or the inverted state. Subsequently, the liquid L can be ejected. In the inverted state, the tip of the liquid sending tube 24 is open to the gas phase of the container,
Since the upper end 41a of the cylindrical body is sealed by the weight 48, no air is sucked into the variable capacity chamber 16 during the trigger operation.

In the second embodiment, the same effect can be obtained by using a cylindrical weight instead of the spherical weight 48. Although the passage switching valve 40 may be inserted into the container, a conduit is connected to its lower end 41b, and the end of this conduit is opened inside the top of the container, whereby the passage switching valve 40 itself becomes a pump. It can be housed in a housing integrated with the part 11 and the like. According to this configuration, the trigger dispenser 30 can be detachably attached to the container by a known connection method.

The gist of the trigger dispenser of the present invention is to have the passage switching valve having the above-described structure, and the structure of other components is not particularly limited. For example, the variable capacity chamber of the pump section is, in addition to the corrugated cylinder shown in the embodiment, a piston cylinder,
Any device having a means such as a diaphragm or a rotary capable of increasing or decreasing the volume of the room may be used. For the configuration of the injection port, the drive mechanism and the interlocking mechanism of the trigger lever, any conventionally known ones can be used.

The trigger dispenser of the present invention is mounted on a container filled with a liquid cosmetic, various liquid detergents, a finishing liquid, a fungicide / antiseptic solution, a bleaching solution, water, etc., and sprays or sprays a certain amount in the container. In doing so, it can be used advantageously at any angle, whether upright or inverted.

Next, the embodiments of the present invention will be summarized and listed. (1) A pump-type dispenser mounted on the top of a container and capable of injecting liquid in the container by operating a trigger lever, comprising: a pump unit; and an injection for injecting liquid pressurized by the pump unit. And a passage switching valve for supplying the liquid in the container to the pump unit. The pump unit includes a variable capacity chamber that changes the internal volume by pulling / returning a trigger lever. A suction valve for sucking the liquid, and an ejection valve for ejecting the liquid pressurized in the variable capacity chamber toward the ejection unit, wherein the passage switching valve is:
The upper end of the cylindrical body is connected to a liquid feed tube reaching the bottom of the container, the lower end of the cylindrical body is opened near the top inside the container, and the middle of the cylindrical wall of the cylindrical body is formed. An opening for feeding liquid to the suction valve is formed in the portion, and a weight that can reciprocate in the cylinder is inserted inside the cylinder, and when the container is erected, When the weight is at the lower end of the cylinder and closes the lower opening, the upper end of the cylinder forms a liquid passage, and when the container is inverted, the weight moves to the upper end side of the cylinder by its own weight and moves to the upper end. A trigger dispenser that closes and opens a lower end to form a liquid passage. (2) A pump-type dispenser mounted on the top of a container and capable of injecting the liquid in the container by operating a trigger lever, comprising: a pump unit; and an injection for injecting the liquid pressurized by the pump unit. And a passage switching valve for supplying the liquid in the container to the pump unit. The pump unit includes a variable capacity chamber that changes the internal volume by pulling / returning a trigger lever. A suction valve for sucking the liquid, and an ejection valve for ejecting the liquid pressurized in the variable capacity chamber toward the ejection unit, wherein the passage switching valve is:
The upper end of this cylindrical body is connected to a liquid feeding tube reaching the bottom of the container, the lower end of the cylindrical body is opened near the top inside the container, and the middle part of the cylindrical wall of this cylindrical body Is formed with an opening through which liquid is supplied to the suction valve, and a weight that can reciprocate in the cylinder is inserted into the inside of the cylinder. When the container is upright, the weight is When the body is at the lower end of the cylinder and closes the lower end opening, the upper end of the cylinder forms a liquid passage, and when the container is inverted, the weight moves to the upper end side of the cylinder by its own weight and the upper end is moved. A trigger dispenser which is closed and has a lower end opened to form a liquid passage. (3) In any one of the above (1) and (2),
A trigger dispenser in which the inner surface of the cylinder of the passage switching valve is cylindrical, and the weight is cylindrical or spherical. (4) In any one of the above (1) and (2),
A trigger dispenser in which an inner diameter of a cylinder of the passage switching valve is in a range of 2 mm to 10 mm and a length of the cylinder is in a range of 5 mm to 30 mm. (5) In any one of the above (1) and (2),
Trigger dispenser with a passage switching valve disposed inside the container. (6) In any one of the above (1) and (2),
A trigger dispenser in which a passage switching valve is housed in a housing integrated with a pump unit and an injection unit, and a conduit is connected to a lower end of the cylindrical body, and a distal end of the conduit is opened near a top inside the container. (7) In any one of the above (1) and (2),
A trigger dispenser in which a suction valve and a pressure output valve of a pump unit include a liquid passage and an opening / closing plate disposed on an outlet side thereof. (8) In any one of the above (1) and (2),
A trigger dispenser in which the variable volume chamber of the pump section has one of a corrugated cylinder, a piston / cylinder, a diaphragm, and a rotary. (9) The trigger dispenser according to (1) or (2), which is mounted on a container filled with liquid cosmetics, various liquid detergents, finishing liquids, antifungal / disinfecting liquids, bleaching liquids, or water.

[0030]

The trigger dispenser of the present invention has a passage switching valve for supplying the liquid in the container to the pump section, and the passage switching valve is formed of a cylinder disposed inclining or vertical. The upper end of this cylindrical body is connected to a liquid sending tube reaching the bottom of the container, the lower end is opened near the top inside the container, and an opening is formed in the middle part of the cylindrical wall for sending the liquid to the suction valve of the pump section, In addition, since a weight that can move reciprocally is inserted into the inside of the cylindrical body, the liquid in the container is consumed by repeating the triggering operation even in the upright state or the inverted state. You can spray the liquid in the container continuously, for example, spraying hair inside the hair, spraying a detergent or disinfectant at a low position in a narrow room such as a bathroom or toilet, or wanting to spray toward the front In some cases, naturally It can be injected or sprayed on smooth.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an aspect of the above embodiment when it is inverted.

FIG. 3 is a sectional view showing another embodiment of the present invention.

FIG. 4 is a cross-sectional view showing an embodiment of the above embodiment when it is inverted;

FIG. 5 is a sectional view showing an example of a conventional trigger dispenser.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... container, 2 ... container top part, 3 ... container bottom part, 10 ... trigger dispenser, 11 ... pump part, 12 ... injection part, 13 ... trigger lever, 16 ... variable capacity chamber, 17 ... suction valve, 19 ... pressure release valve , 20: passage switching valve, 21: cylindrical body, 21a: cylindrical upper end, 21b: cylindrical lower end, 24: liquid feeding tube, 25: opening, 26: conduit, 28: weight, 29: annular body, L ... liquid, G ... gas phase.

Claims (4)

[Claims] 1. A pump-type dispenser which is mounted on the top of a container and which can eject liquid in the container by operating a trigger lever, wherein the pump dispenses a liquid pressurized by the pump. And a passage switching valve for supplying the liquid in the container to the pump section, wherein the pump section changes the internal volume by pulling / returning a trigger lever, and the variable capacity chamber A suction valve for sucking the liquid into the chamber, and an ejection valve for ejecting the liquid pressurized in the variable capacity chamber toward the ejecting unit, wherein the passage switching valve is disposed in an inclined manner. The upper end of this cylinder is connected to a liquid feed tube reaching the bottom of the container, the lower end of the cylinder opens near the top inside the container, and the middle of the cylinder wall of this cylinder is connected to the suction valve. An opening for feeding liquid is formed, and the inside of this cylinder is Is inserted into the cylinder, and when the container is erected, the weight is located at the lower end of the cylinder, closes the lower end opening, and the upper end of the cylinder communicates with the liquid passage. A trigger dispenser, wherein when the container is inverted, the weight body moves to the upper end side of the cylindrical body by its own weight to close the upper end and open the lower end to form a liquid passage. . 2. A pump type dispenser mounted on the top of a container and capable of injecting the liquid in the container by operating a trigger lever, wherein the pump and a liquid pressurized by the pump are ejected. And a passage switching valve for supplying the liquid in the container to the pump section, wherein the pump section changes the internal volume by pulling / returning a trigger lever, and the variable capacity chamber A suction valve for sucking the liquid into the chamber, and an ejection valve for ejecting the liquid pressurized in the variable capacity chamber toward the ejection unit, wherein the passage switching valve is a cylinder disposed vertically. Become
The upper end of this cylindrical body is connected to a liquid feed tube reaching the bottom of the container, the lower end of the cylindrical body is opened near the top inside the container, and liquid is sent to the above-mentioned suction valve in the middle of the cylindrical wall of this cylindrical body. An opening is formed, and a weight that can reciprocate in the cylinder is inserted into the interior of the cylinder. When the container is upright, the weight is at the lower end of the cylinder and the lower end is The opening is closed and the upper end of the cylinder forms a liquid passage, and when the container is inverted, the weight moves to the upper end side of the cylinder by its own weight, closes the upper end, and the lower end is opened, and the liquid passage is opened. A trigger dispenser characterized in that a trigger dispenser is formed. 3. The trigger dispenser according to claim 1, wherein the inner surface of the cylindrical body is cylindrical, and the weight is cylindrical or spherical. 4. The liquid supply apparatus according to claim 1, wherein the suction valve and the pressure output valve each include a liquid passage and an opening / closing plate disposed on an outlet side thereof. Trigger dispenser.