JP3396881B2 - Nozzle structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a nozzle used for, for example, care of an elderly person, and more specifically, for sucking and removing excrement attached to the body of the elderly person.

[0002]

In recent years, the number of elderly people who are bedridden or have dementia has been rapidly increasing, and care of the elderly people, especially disposal of excrement, has become an extremely important issue.

By the way, normally, diapers are used to deal with such excrement of the elderly. That is, excrement is processed by exchanging diapers after excretion or periodically. However, just changing the diaper
The excrement remains on the body, which is a sanitary problem. Therefore, when exchanging diapers, it is necessary to remove the excrement adhering to the body.

Conventionally, such work has been performed manually by using cleaning articles such as paper and cloth. That is,
It is the current situation that caregivers use such cleaning products to directly wipe dirty parts of the body (wiping off excrement adhering to the body).

However, the excrement attached to the body is often already solidified by the time the diaper is exchanged, and a great amount of labor is required to remove it manually.

[0006] Therefore, the present inventor has eagerly conducted research to eliminate such a problem, and as a result, a device capable of easily removing solidified matter, particularly, easily sucked and removed solidified matter attached to the body. We have developed a device that can be used (Japanese Patent Application No. 11-350930).

The suction device will be briefly described with reference to FIG. 5 showing its schematic structure and FIG. 6 showing its function.

Generally speaking, this suction device is composed of a suction system structure part and a liquid spraying system structure part (liquid spraying means).

First, as shown in FIG. 5, the suction system structure portion connects the nozzle (suction port) 11, the suction means 12, the suction target object tank 13, and the suction target object tank 13 and the nozzle 11. A bellows-shaped hose 14 is provided as a main component.

Of these, the nozzle 11 is cup-shaped, and an object to be sucked is sucked from the nozzle 11. The edge of the opening that contacts the body is covered with a pad 11a so as not to damage the body.

On the other hand, the suction means 1 continuing from this nozzle 11
2 is a fan motor, which is installed above the suction target object tank 13. Further, the suction target object tank 13 stores the suction target object sucked from the nozzle 11 by the action of the suction means 12 (therefore, the suction force of the suction means 12 passes through the space inside the suction target object tank 13). Works). However, the suction target object tank 13 is filled with water, and the suction target object is mixed with the water.

The suction means 12 and the tank 1 for the object to be sucked
A gas-liquid separation mechanism (not shown) that utilizes the driving force (rotational force) of the suction means 12 is interposed between the liquid crystal element 3 and the liquid crystal element 3. Therefore, needless to say, only air is discharged from the suction means 12.

By the way, this gas-liquid separation mechanism, and further, a suction system structure using a tank for an object to be sucked filled with water (usually this is called a wet-dry dual-purpose cleaner).
Are already known (for example, JP-A-10-30
4993). Therefore, its detailed description is omitted.

The suction means 1 is also applicable to a part of the liquid spray system structure (liquid spray means).
The tank 2 and the suction target object tank 13 are housed inside a case A having wheels for movement. However, although not shown in detail, the case A is the tank 1 for the object to be sucked.
In order to be able to replace the dirty water in 3, the upper and lower parts can be separated.

Next, regarding the liquid spraying system structure (liquid spraying means) which constitutes the present suction device together with the suction system structure, this liquid spraying system structure is sucked from the nozzle 11. This is for spraying a liquid (warm water) on the previous object to be aspirated, that is, on the object to be aspirated (excretion) that has adhered to the body and solidified.

As shown in FIG. 5, this liquid spraying system structure portion has a liquid tank 15 for storing liquid and a heating means 1.
6, a liquid spray nozzle 17, a liquid pressure feeding means 18, and
An infusion tube 19 connecting the fluid pressure feeding means 18 and the fluid spraying nozzle 17 is provided as a main component.

Of these, the liquid tank 15, the heating means 16 and the liquid pressure feeding means 18 are housed inside the case A as described above. In particular, the liquid tank 15 is provided with a removable lid 15a so that the liquid can be replenished. Further, the heating means 16 exists below the liquid tank 15, and the liquid (water) stored in the liquid tank 15 is, for example, 30 to 30 times.
It plays a role of heating to 35 ° C. Further, the liquid pressure feed means 18 connected to the liquid tank 15 and the liquid transfusing tube 19 is specifically an electric pump, and the liquid stored in the liquid tank 15 is directed toward the liquid spray nozzle 17. To pump. The liquid transfusing tube 19 that carries the liquid is tightly connected to the hose 14 at a predetermined interval so that the liquid transfusing tube 19 can move together with the hose 14.

On the other hand, the nozzle 17 for spraying the liquid sprays the liquid sent by the liquid pressure sending means 18 to the object to be sucked before being sucked from the nozzle 11, that is, the excrement in the state of being adhered to the body and solidified. Play a role of spraying. In particular, the liquid spray nozzle 17 projects inward so that it faces the open surface of the nozzle 11.
It is attached to 1. That is, the liquid spray nozzle 17 is fixed in an inclined state so that the liquid spraying the virtual center of the open surface of the nozzle 11 passes through.

The nozzle 11 to which the liquid spray nozzle 17 is attached has a portion having a uniform diameter on the side to which the hose 14 is connected. Two switches (not shown) for activating or deactivating the suction means 12 and the liquid pressure feeding means 18 are arranged in this portion. Therefore, in reality, in addition to the hose 14 and the liquid transfusing tube 19, a cable for transmitting an electric signal also exists between the nozzle 11 and the case A.

Generally speaking, as shown in FIG. 6, the present suction device is configured so that the suction target (body B '
The liquid W'can be sprayed on the excrement M'which has adhered to and solidified. Then, together with the sprayed liquid W ′, the suction target M ′ peeled off from the adhered portion is sucked by the action of the suction means 12 from the nozzle 11,
Furthermore, the sucked object M ′ and the liquid W ′ are
It is configured to be stored in the aspirated object tank 13. Therefore, even if the object M ′ to be sucked and removed is already solidified, this can be easily dealt with. That is, the sucked and solidified object M ′ is softened by the action of the sprayed liquid W ′, and is quickly separated from the sticking point. Moreover, the peeling of the suctioned object M ′ is further promoted by the force of the liquid W ′. As a result,
It becomes possible to easily and efficiently suck and remove the object to be sucked M ′ that has adhered to the body B ′ and solidified.

By the way, while further researching, the present inventor has found that the suction device exhibiting such excellent performance also has the following points to be improved. The point that this improvement is required relates to the portion of the nozzle 11 that serves as a suction port for the suction target M ′.

That is, as described above, the liquid spray nozzle 17 is attached to the nozzle 11, and the liquid W'is supplied from the liquid spray nozzle 17 to the object M'to be sucked.
The suction device is configured so as to be able to spray. However, the liquid W'spreads a little after being jetted from the liquid spray nozzle 17, but hits only a fairly small area. In other words, the liquid W'is only spot-wise sprayed on the small area of the suction target M '. Therefore, in practice, the nozzle 11 must be moved so that the liquid W ′ hits the entire suction target M ′, which is inefficient.

By configuring the liquid spray nozzle 17 itself so that the liquid W'diffuses over a wide range, it is possible to spray the liquid W'on most of the object to be sucked M'at a time. Become. However, in this case, since the momentum of the liquid W'is significantly reduced, the efficiency is rather deteriorated.

Therefore, the problem to be solved by the present invention is to provide a nozzle structure capable of efficiently spraying (acting) a liquid onto an object to be sucked. Particularly, it is to provide a nozzle structure capable of vigorously spraying (acting) the liquid over a wide range.

[0025]

Means for Solving the Problems] This object is to be sucked object
A structure of a nozzle that has a liquid injection hole for ejecting a liquid to be sprayed, is connected to a suction device, and is used for sucking an object to be sucked.
The obstacle plate that rebounds the liquid that is attached and bounces back to the suction target side is more than the opening surface of the nozzle facing the suction target.
To innermost side, it becomes substantially provided in parallel to the opening surface, before
The size of the obstacle plate depends on the position at which the obstacle plate is installed.
A surface area smaller than the hollow cross-sectional area of the nozzle,
The liquid injection hole is formed in the obstacle plate, which is solved by a nozzle structure.

That is, when the nozzle has such a structure, the liquid is sprayed from the liquid injection hole of the obstacle plate to the object to be sucked. By the way, after the sprayed liquid collides with the object to be sucked (the surface to which the object to be sucked adheres),
Although it bounces back to the inner back side of the nozzle, as described above, in the nozzle having the structure according to the present invention, the inner back side of the opening face facing the object to be sucked is substantially parallel to the opening face. A plate is provided. Therefore, the liquid that rebounds rebounds toward the object to be suctioned again due to the presence of the obstacle plate, and thereafter, this behavior is repeated while being attenuated. On the other hand, in the nozzle, an air flow is formed toward the inner side by suction. Therefore, the liquid ejected from the liquid ejecting holes flows toward the peripheral side of the obstacle plate while recoiling between the obstacle plate and the surface to which the object to be sucked is attached. Therefore, by using the nozzle having the structure according to the present invention, it is possible to spray (act on) the liquid extremely efficiently to the object to be sucked, as compared with the conventional method of ejecting the liquid in spots. . In particular, it is possible to spray (act) the liquid vigorously over a wide range (the same area as the obstacle plate) at one time.

In the present invention, it is preferable that projections are formed on the surface of the obstacle plate facing the object to be sucked, avoiding the position where the liquid injection holes are formed. By providing the protrusions, the liquid flowing toward the peripheral side of the obstacle plate is further agitated, so that the efficiency of removing the suctioned object can be improved.

Further, in the present invention, the obstacle plate is supported inside the nozzle by a hollow stay standing upright on the inner peripheral surface of the nozzle, and the liquid passes through the inside of the stay and the obstacle plate. Can be configured to be supplied to the liquid injection holes of

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be specifically described below with reference to FIGS. 1 is a perspective view showing a nozzle adopting the structure according to the present embodiment with a part thereof broken, FIG. 2 is an enlarged cross-sectional view of a main portion of the nozzle, and FIG. 3 is related to the present embodiment. It is sectional drawing in the use condition which shows the effect | action of the nozzle with which the structure was employ | adopted.

A nozzle (hereinafter referred to as the present nozzle) adopting the structure according to the present embodiment is generally connected to a suction device for sucking excrement adhering to the body which is an object to be sucked. Is used. The existing suction device described above can be used as it is, and the description thereof will be omitted. Needless to say, the present nozzle can be used for various purposes other than suction removal of excrement adhering to the body.

As can be seen from FIG. 1, the present nozzle has a substantially cylindrical outer shape. A hose H extending from the suction device is connected to the rear end side. on the other hand,
The tip side, that is, the excrement (hereinafter referred to as the object to be aspirated)
The end portion on the side of the opening 1 facing to is covered with a soft pad 2 so as not to damage the skin during work.

Further, in the present nozzle, the inner side of the opening surface facing the object to be suctioned is substantially parallel to the opening surface (even if slightly inclined) and the center of each other. The obstruction plate 3 is provided so that the two coincide with each other. The obstacle plate 3 is circular according to the cross-sectional shape of the main body portion (cylindrical portion) of the nozzle, and the surface area of the obstacle plate 3 is hollow at the position where the obstacle plate 3 is provided. It is smaller than the cross-sectional area of the part. That is, the diameter of the obstacle plate 3 is set smaller than the inner diameter of the nozzle body. This is, of course, to prevent the air flow toward the hose H side from being blocked by the obstacle plate 3.

Further, the obstacle plate 3 (particularly the central portion thereof) is formed with a plurality of liquid injection holes 4 for injecting a liquid (for example, lukewarm water) to be sprayed on the object to be sucked. By the way, this obstacle plate 3 is, as can be seen from FIG.
It is supported by a hollow substantially L-shaped stay 5 which is erected on the inner peripheral surface (actually the base end side is fitted). In the present embodiment, the liquid to be sprayed on the object to be sucked is supplied to the liquid injection hole 4 of the obstacle plate 3 through the inside of the stay 5. Therefore, in the present nozzle, the obstacle plate 3 is a part of the liquid ejecting means (the liquid spraying system structure portion in the existing suction device described above). However, here, the obstacle plate 3 and the stay are integrally formed.

In addition, in this embodiment, a plurality of protrusions 6 are formed on the surface of the obstacle plate 3 facing the object to be attracted. As a matter of course, the projection 6 is formed on the edge side of the obstacle plate 3 avoiding the position where the liquid injection hole 4 exists, and further, the tip end thereof has a spherical roundness. Has been granted. By the way, in the present embodiment, the height of the projection 6 is such that the tip of the projection 6 and the nozzle opening surface are substantially coincident with each other (strictly speaking, the height of the tip of the projection 6 slightly inside and behind the nozzle opening surface). Configured).

An infusion tube T extending from the suction device is connected to the base end side of the stay 5. For reference, the other end of the infusion tube T is connected to a hydraulic pressure feeding means (not shown) such as an electric pump, and the hydraulic pressure feeding means causes a failure through the infusion tube T. The liquid is pressure-fed to the plate 3, and the liquid is ejected from the liquid ejection hole 4 of the obstacle plate 3. Incidentally, for example, in the vicinity of the connecting portion between the main nozzle and the hose H, switches for activating or deactivating the main body of the suction device (specifically, a fan motor) and the liquid pressure feeding means are arranged. ,
These are omitted in the figure.

Next, the operation of this nozzle will be described with reference to FIG.

FIG. 3 (protrusion 6 is omitted) shows a state in which the suction device is operated and the liquid W is sprayed on the object to be sucked (excretion attached to the body B) M. Here, as can be seen from FIG.
Is sprayed onto the object to be attracted M from the liquid ejection hole 4 of the obstacle plate 3. Then, after colliding with the suctioned object M (the surface on which the suctioned object is attached), it bounces back inside the nozzle. However, in this nozzle, as described above, since the obstacle plate 3 is provided on the inner back side of the opening surface facing the object to be sucked M, the liquid W that has rebounded is caused by the existence of the obstacle plate 3. It bounces back to the suction target M side again. After that, the above-mentioned behavior is repeated while being attenuated. On the other hand, in the main nozzle, a strong airflow is formed toward the inner side by suction. Therefore, the liquid W sprayed from the liquid spray holes 4 recoils between the obstacle plate 3 and the surface of the body B to which the suction target M adheres, and moves toward the peripheral edge side of the obstacle plate 3.
It flows radially. For this reason, when the present nozzle is used, the liquid W is sprayed onto the object to be sucked M very efficiently as compared with the conventional method of ejecting the liquid onto the object to be sucked S in spots. ) Is possible. In particular, it is possible to spray (act) the liquid W vigorously over a wide range (the same area as the obstacle plate 3) at a time. As a result, the efficiency of the suction and removal work of the suction target M is dramatically improved.

As an embodiment of the present invention, a nozzle having a flat opening-side end surface (opening-side annular end surface) is given as an example. However, as shown in FIG.
As shown in, for example, a projection 7 having a hemispherical tip portion
May be formed in plural along the circumferential direction (the other constituent elements are the same as those in the previous embodiment, so the reference numerals used previously are given). Further, it goes without saying that the above embodiment is merely an example of the present invention (particularly preferable form), and the present invention is not limited to such form.

[0039]

EFFECTS OF THE INVENTION According to the present invention, it is possible to efficiently spray (apply) a liquid onto an object to be sucked. In particular, it is possible to spray (act on) the liquid vigorously in a wide range.

[Brief description of drawings]

FIG. 1 is a perspective view showing a nozzle in which a structure according to an exemplary embodiment of the present invention is adopted, with a part thereof broken away.

FIG. 2 is an enlarged cross-sectional view of a main part of a nozzle adopting the structure according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of a nozzle in which the structure according to the embodiment of the present invention is used, showing how the nozzle operates.

FIG. 4 is a perspective view showing a nozzle in which a structure according to another embodiment of the present invention is adopted, with a part thereof broken away.

FIG. 5 is a schematic view showing the structure of an existing suction device.

FIG. 6 is a sectional view showing the function of an existing suction device.

[Explanation of symbols]

1 Nozzle opening 2 pads 3 Obstacles 4 Obstacle plate liquid injection holes 5 stay Protrusion of 6 obstacle plate H hose T infusion tube W liquid M Inhaled object (excretion attached to the body) B body

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A61H 35/00 A47K ⁷ /00-7/08 B08B 3/02

Claims (3)

(57) [Claims] 1.To spray the liquid to be sprayed on the object to be sucked
It has a liquid injection hole ofIt is connected to the suction device and sucks
The structure of the nozzle used to press in,Liquid that is sprayed from the liquid injection hole and bounces off the object to be sucked
Bounce back to the suction target Obstacle plate, In the nozzle
The inside of the opening facing the object to be suctioned
Almost parallel to the planeProvided,The size of the obstacle plate should be at the position where the obstacle plate is installed.
The surface area is smaller than the hollow cross section of the nozzle.
, The liquid injection hole isFor the obstacle plateCharacterized by being formed
Nozzle structure. 2. The nozzle structure according to claim 1, wherein a projection is formed on a surface of the obstacle plate facing the object to be sucked, avoiding a position where the liquid injection hole is formed. 3. The obstacle plate is supported inside the nozzle by a hollow stay standing on the inner peripheral surface of the nozzle, and the liquid is jetted through the inside of the stay through the liquid of the obstacle plate. The nozzle structure according to claim 1 or 2, wherein the nozzle structure is configured to be supplied to the holes.