JP3188806U - Pump suction pipe of liquid container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pump suction pipe capable of using up substantially the entire amount of filled liquid and preventing liquid leakage during piercing and setting work of the pump suction pipe. SOLUTION: It is used as a pump means for sucking and extracting a liquid filled in a flexible liquid container, and one end is connected to the pump means and the other end is pierced and inserted into the liquid container. As a result, one end of the pump liquid suction tube 1 that allows the liquid container to pass through the inside and outside to suck and inject the liquid is directly or indirectly connected to the pump means, and the other end pierces the inside of the liquid container. The liquid is inserted and has a liquid absorbing hole 11 that communicates with the pump means through the inside of the pump liquid absorbing pipe, and the tip end portion, which is the other end portion, does not have a liquid passage and the liquid. It is a piercing portion 12 formed in a sharp shape so as to be piercable into a container, and has a configuration in which the liquid absorbing hole is provided on a side portion of a portion rearward in the piercing direction from the piercing portion. [Selection diagram] Fig. 1

Description

  The present invention relates to a pump suction pipe for a liquid container, and more particularly to a pump suction pipe that is attached to a flexible liquid-filled bag / liquid-filled bottle and connected to pump means for sucking and dispensing the liquid as the contents.

  Suction-type liquid dispensing pump device configured to suck and dispense liquid such as shampoo, conditioner, rinse, dishwashing detergent, etc. filled in a liquid container comprising a flexible liquid-filled bag or liquid-filled bottle by a pump means It has been known. In such an apparatus, when a new liquid container is used when it is first used or when it is used up, a setting operation is performed in which the pump suction pipe connected to the pump means is pierced into the liquid container.

  At the time of this setting operation, the tip of the pump suction pipe is obliquely sharpened so that the pump suction pipe can pierce the top or bottom of the liquid container quickly and reliably. Further, the tip portion is opened to serve as a liquid absorption hole (see, for example, Patent Documents 1 and 2).

  According to the suction tube configurations described in Patent Documents 1 and 2, the liquid container can be quickly and surely pierced into the top or bottom of the liquid container.

  However, with these technologies, liquid can be sucked and dispensed without problems at the start of use, but the remaining amount of liquid is reduced and the inner wall of the liquid filling bag or liquid filling bottle is placed in the suction hole of the pump suction pipe. When it is gradually sucked, the sucking amount is reduced by the sucking, and the moving space of the liquid near the suction hole is reduced, so that the discharging amount is reduced. In some cases, the suction hole is in close contact with the suction hole and the suction hole is blocked, making it impossible to suck or dispense liquid. The blockage of the suction hole during the suction / pumping has the disadvantage that the liquid remains in the liquid-filled bag or the liquid-filled bottle and the entire amount of liquid cannot be used up.

  Therefore, the present inventor previously proposed a technique in which another suction hole is added to the side portion of the pump suction pipe in addition to the suction hole at the tip of the pump suction pipe (see Patent Document 3).

  According to such a previously proposed technique, even if the suction hole at the tip of the suction tube is blocked by the suction, the liquid can be sucked and extracted from the suction hole in the side part to the end, so that the liquid remains. The whole amount can be used up.

JP 2002-068345 A JP 2001-130661 A Patent No. 5097004

  The present inventor conducted further research on such a technique, and in the technique in which a suction hole is added to the side portion described in Patent Document 3, the pump suction pipe should be improved at the time of setting work to pierce the liquid container I found a point.

  When the tip of the pump suction pipe is pierced into the liquid container, pressure is applied to the inside of the liquid container, so that the tip immediately after the tip of the pump suction pipe pierces and enters the inside of the liquid container. It has been found that liquid may enter the pump suction pipe from the suction hole of the part, and the entered liquid may leak out of the liquid container from the suction hole of the side part that has not yet entered the liquid container. .

  It has been found that this is particularly likely to occur when piercing slowly and gradually in order to carefully and carefully carry out setting work such as elderly people.

  Therefore, an object of the present invention is to provide a pump suction pipe that can use up almost the whole amount of the filling liquid and that can prevent liquid leakage during the piercing and setting operation of the pump suction pipe.

  This invention which solves the above-mentioned subject has the following composition.

1. Used for pumping means for sucking and extracting liquid filled in a flexible liquid container, one end of which is connected to the pumping means, and the other end is inserted into the liquid container so as to be inserted into the liquid container. In the pump suction pipe that sucks and dispenses liquid by letting the container go inside and outside,
The pump suction pipe is
One end part is connected directly or indirectly to the pump means,
The other end portion is inserted and stabbed into the liquid container, and has a liquid suction hole communicating with the pump means through the inside of the pump liquid suction pipe,
The tip part which is the other end part is a piercing part formed so as to be pierced into the liquid container without having a liquid passage,
The liquid absorption hole is provided in the side portion of the rear portion in the piercing direction from the piercing portion,
A pump suction pipe characterized by.

2. 2. The pump suction pipe according to 1 above, wherein the piercing portion has a conical portion and a columnar portion provided continuously to the conical portion.

3. 3. The pump suction pipe for a liquid container according to 1 or 2 above, wherein a plurality of the liquid suction holes are provided at equal intervals in a circumferential direction of a side portion of the pump suction pipe.

4). 4. The pump suction pipe for a liquid container as described in 3 above, wherein three liquid suction holes are provided at regular intervals.

5. The pump suction according to any one of the above items 1 to 4, wherein the liquid container is formed of a film capable of maintaining liquid tightness and air tightness at a puncture site where the pump suction pipe is pierced. tube.

6). 6. The pump suction pipe according to 5 above, wherein the membrane capable of maintaining the liquid-tightness and air-tightness of the puncture site is composed of a laminated film including an unstretched nylon film and a polyolefin resin film.

  According to the first aspect of the present invention, it is possible to provide a pump suction pipe that can use almost the entire amount of the filling liquid and that can prevent liquid leakage during the piercing and setting operation of the pump suction pipe.

  In particular, since there is no suction hole at the tip of the pump suction tube, it specializes in the piercing function, so that the liquid does not enter the pump suction tube immediately after the tip stabs and enters the liquid container. The liquid enters the pump suction pipe at the time when the suction hole portion of one side enters the inside of the liquid container. Therefore, even if the elderly or the like punctures carefully and carefully when performing the piercing operation, the pump suction pipe can be reliably pierced into the liquid container without leaking liquid.

  According to the second aspect of the present invention, the piercing hole portion of the liquid container that is pierced by the piercing of the tip end portion of the pump suction pipe is formed in a circular shape, so that it is difficult for tearing and tearing.

  According to the third aspect of the present invention, the remaining amount of liquid in the liquid container is reduced, and even if the inner wall of the liquid container is sucked into any one of the plurality of suction holes, suction from the remaining suction holes is ensured. Therefore, the suction hole can be prevented from being completely blocked.

  According to the fourth aspect of the present invention, it is possible to have a configuration that combines the maintenance of the strength of the side portion of the pump suction pipe at the portion where the suction hole is formed and the suction efficiency of the filling liquid. In particular, even when the remaining amount of liquid is reduced and the inner wall portions on both sides of the liquid container are sucked into the suction holes and are in close contact with the side portions of the pump suction tube, the three suction tubes provided at equal intervals Since at least one can be kept open without being blocked, suction and dispensing can be reliably performed without hindering the suction of the liquid.

  According to the fifth aspect of the present invention, the liquid tightness and air tightness of the suction pipe and the pierced portion can be reliably maintained from the start of suction / pour-out until the entire amount of liquid is used up.

  According to the device shown in claim 6, the liquid tightness and the airtightness of the pump suction pipe and the pierced portion can be more reliably maintained.

5 side view (front view, plan view, bottom view, back view, right side view) showing an embodiment of the pump suction pipe according to the present invention AA line end view of the pump suction pipe shown in FIG. BB sectional view of the pump suction pipe shown in FIG. BB line end view of the pump suction pipe shown in FIG. CC sectional view of the pump suction pipe shown in FIG. The schematic block diagram which shows an example of the suction type liquid extraction pump apparatus using the pump suction pipe of this invention

  Hereinafter, a pump suction pipe according to the present invention will be described with reference to the drawings.

The invention includes shampoos, conditioners, treatments, other hair products, cosmetic liquids, toothpastes, liquid detergents, liquid soaps, sauces, mayonnaise, edible oils, machine oils, and other various liquids (such as gel or jelly). A suction-type liquid dispensing pump device (FIG. 6) that can be used by sucking and extracting the liquid from a flexible liquid container (indicated by reference numeral 2 in FIG. 6) filled with a high-viscosity liquid. The one end is connected to the pump means (shown by reference numeral 4 in FIG. 6) of the suction type liquid dispensing pump device, and the other end is disposed in the liquid container. A pump suction pipe 1 that sucks and dispenses liquid by passing the liquid container in and out by being pierced and inserted;
As shown in FIGS. 1 to 4, the pump suction pipe 1 is
One end portion 1A is directly or indirectly connected to the pump means 4 (indirect in this embodiment),
The other end portion 1B is inserted into the liquid container 2 and has a liquid suction hole 11 communicating with the pump means 4 through the pump liquid suction pipe 1.
The tip portion which is the other end portion 1B is a piercing portion 12 formed so as to be pierced into the liquid container 2 without having a liquid passage,
The liquid absorption hole 11 is provided in the side portion 1C of the rear portion in the piercing direction from the piercing portion 12.
Is the main component.

  Each configuration of the pump suction pipe of the present invention will be further described in detail.

  The pump suction pipe 1 is connected to the pump means 4 as described above, and the one end portion 1 </ b> A is connected to the pump operating part of the pump means 4. As this connection configuration, an indirect connection configuration in which the pump operation portion is connected to the pump operation portion from below by screwing or screwing, or the lower configuration itself of the pump operation portion of the pump means 4 is directly formed as the pump suction pipe 1. Connection configuration and the like. The pump suction pipe 1 is made of a synthetic resin as well as a publicly known one as this kind of pump suction pipe.

  It is preferable that a plurality of liquid suction holes 11 are provided at equal intervals in the circumferential direction of the side portion 1C of the pump suction pipe 1, and more preferably three at equal intervals as shown in this embodiment. It is the structure provided. According to such a configuration, it is possible to have a configuration that combines the strength maintenance of the side portion 1C of the pump suction pipe 1 at the portion where the suction hole 11 is formed and the suction efficiency of the filling liquid. In particular, even when the remaining amount of the liquid is reduced and the inner wall portions on both sides of the liquid container 2 are sucked into the suction holes and are in close contact with the side portion 1C of the pump suction pipe 1, three pieces provided at equal intervals are provided. Since at least one of the suction pipes 11 can be maintained in an open state without being blocked, suction and dispensing can be reliably performed without impeding liquid suction. In this embodiment, a reinforcing partition wall 13 is provided inside the portion of the pump suction pipe 1 where the liquid suction hole 11 is provided. The reinforcing partition wall 13 serves not only to reinforce the pump suction pipe 1 but also to guide the flow of the liquid sucked in through the suction hole 11 toward the pump means 4. In addition, although the inside of the pump suction pipe 1 has a single pipe structure as shown in FIG. 2 in this embodiment, it may have a double pipe structure in which an inner cylinder communicating with the pump means 4 is provided.

  In the present invention, as shown in the present embodiment, the piercing portion 12 preferably has a conical portion 12A and a columnar portion 12B connected to the conical portion 12A.

  Next, an example of the suction type liquid dispensing pump device 3 to which the pump suction pipe 1 of the present invention is applied will be described.

  As shown in FIG. 6, the suction-type liquid dispensing pump device 3 includes a liquid container 2 and a device main body 5 that accommodates the liquid container 2 and is attached with pump means 4. Further, the apparatus main body 5 includes a main body interior portion 5A that is a housing portion for the liquid container 2, a main body exterior portion 5B that is attached to the main body interior portion 5A from above while the pump means 4 is attached to the upper portion, Consists of.

  As the liquid container 2, a flexible liquid-filled bag or a soft synthetic resin that contracts (shrinks) with the negative pressure in the liquid container 2 as the liquid in the liquid container 2 is sucked and dispensed. A well-known and used liquid container used for the liquid suction and dispensing method / pump apparatus can be used without any particular limitation.

  When the liquid container 2 is a flexible bag as shown in the present embodiment, the pump suction pipe 1 of the present invention is pierced into the bag to allow the liquid to be sucked and dispensed. It is the structure to perform and it is preferable that it is comprised with the film | membrane which can hold | maintain the liquid-tightness and airtightness of the puncture location where the pump suction pipe 1 is pierced.

  As a film | membrane which can maintain the liquid-tightness and airtightness of the said puncture location, what was comprised with the laminated | multilayer film containing an unstretched nylon film and a polyolefin-type resin film can be mentioned.

  Further, the liquid container 2 is not limited to the one having the above-described bag structure, and can be a bottle container made of a soft synthetic resin. Even when the liquid container 2 is a bottle container, when the liquid in the liquid container 2 is sucked and dispensed, the bottle container made of a soft synthetic resin is contracted with the internal negative pressure. Of course.

  As the pump means 4, a publicly known and publicly used pump used in this type of pump type pump device can be used without any particular restriction. The liquid in the liquid container 2 can be sucked through the pump suction pipe 1 and poured out (discharged) from the extraction port (discharge port). Since the pump configuration of the pump means 4 is a general pump configuration used in this type of liquid take-out device, the description of the pump mechanism of the pump means 4 is omitted in this specification.

  The pump suction pipe according to the present invention has been described above based on the embodiments. However, the present invention is not limited to the above-described embodiments, and other modes can be adopted within the scope of the present invention.

  For example, the shape of the piercing portion 12 is not limited to the configuration composed of the conical portion 12A and the cylindrical portion 12B in the above-described embodiment, and the configuration including only the conical portion 12A without the cylindrical portion 12B, or the conical portion 12A and the conical portion. It can replace with 12B and can also be set as the structure which has a polygonal pyramid part and the polygonal column part provided in a row by this polygonal pyramid part.

  In addition, the shape of the suction hole 11 is not limited to the rectangle of the above embodiment, but may be a rhombus, another polygon, a circle or an ellipse.

DESCRIPTION OF SYMBOLS 1 Pump suction pipe 1A One end part 1B Other end part 1C Side part 11 Suction hole 12 Piercing part 12A Conical part 12B Cylindrical part 13 Reinforcing partition part 2 Liquid container 3 Suction-type liquid extraction pump apparatus 4 Pump means 5 Apparatus main body 5A Body interior 5B Body exterior

Claims (6)

Used for pumping means for sucking and extracting liquid filled in a flexible liquid container, one end of which is connected to the pumping means, and the other end is inserted into the liquid container so as to be inserted into the liquid container. In the pump suction pipe that sucks and dispenses liquid by letting the container go inside and outside,
The pump suction pipe is
One end part is connected directly or indirectly to the pump means,
The other end portion is inserted and stabbed into the liquid container, and has a liquid suction hole communicating with the pump means through the inside of the pump liquid suction pipe,
The tip part which is the other end part is a piercing part formed so as to be pierced into the liquid container without having a liquid passage,
The liquid absorption hole is provided in the side portion of the rear portion in the piercing direction from the piercing portion,
A liquid container pump suction pipe. 2. The pump suction pipe for a liquid container according to claim 1, wherein the piercing portion has a conical portion and a columnar portion connected to the conical portion. 3. The pump suction pipe of a liquid container according to claim 1, wherein a plurality of the liquid suction holes are provided at equal intervals in a circumferential direction of a side portion of the pump suction pipe. The pump suction pipe for a liquid container according to claim 3, wherein three liquid suction holes are provided at equal intervals. The liquid according to any one of claims 1 to 4, wherein the liquid container is composed of a film capable of maintaining liquid tightness and airtightness at a puncture site where the pump suction pipe is pierced. Container pump suction tube. 6. The liquid container according to claim 5, wherein the membrane capable of maintaining the liquid tightness and air tightness of the puncture site is composed of a laminated film including an unstretched nylon film and a polyolefin resin film. Pump suction tube.

Images