JPH0445718Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to an air supply device that delivers air to, for example, an air mat for preventing bedsores.

<Problems to be solved by conventional techniques and inventions> When a sick person lies in a hospital bed for a long period of time, blood circulation may be injured and symptoms of so-called bedsores may appear. In order to prevent the symptoms of bedsores, air mats for preventing bedsores are used which allow a small amount of air to leak from the mat.

The above-mentioned air mat for preventing bedsores is made up of a plurality of flexible cylindrical mat bodies with both ends closed, and a large number of microscopic holes are provided on the surface of the mat bodies to allow a small amount of air to leak out. (Refer to Utility Model Publication No. 52-43195). This air mat for preventing bedsores is used by connecting an air pump that leaks a breeze that is not perceptible to the human body from the fine holes in the mat main body.

The above air pumps are rotary type, piston type,
It is composed of a diaphragm type pump, etc., and can continuously pump air at a rate of about 5 to 10 times per minute at a predetermined pressure by driving a built-in motor.

However, when a sick person is using a diaper, if the air pump is used to blow air into the air mat, the air will emit odor.

In other words, since the air pump is configured to directly blow the sucked air to the mat main body, the air leaking from the mat main body dissipates odors attached to the body, diapers, etc. into the air. However, there is a problem in that it leaves a strong odor in the room.

Therefore, in view of the above-mentioned problems, the purpose of this invention is to provide an air supply device that can prevent the emission of odor even when air is blown to an object that is likely to emit odor. .

<Means for solving the problem> In order to achieve the above object, the air supply device of this invention includes an air pump that sends out the sucked air, and an air pump that sends out the air sucked into the air pump or air sent out from the air pump. The device includes a deodorizer mixing means for introducing and mixing the deodorant, and a switching pot for stopping the mixing of the deodorant, and the switching pot is connected to a first port communicating with the air pump and to the outside of the device. a third port that is rotatably fitted into the main body and communicates with the air introduction side of the deodorant mixing means; a fourth port communicating with the air discharge side; a first communication path that directly communicates the first port and the second port at a predetermined rotational position; and a state rotated by a predetermined angle from the rotational position; 2 for communicating the first port and the third port, and the second port and the fourth port, respectively;
It is characterized by comprising a switching member having a second communication path for books.

<Operation> According to the air supply device having the above configuration, when the switching member of the switching pot is set at a predetermined rotational position and the first port and the second port of the pot main body are directly communicated through the first communication path, The air from the air pump can be discharged as is.

On the other hand, by rotating the switching member of the switching unit by a predetermined angle, the first and third ports of the switching unit and the second and fourth ports of the unit are connected through the two second communication passages of the switching member. When these are connected, the air sucked into the air pump or the air sent out from the air pump is introduced from the third port of the switching unit to the deodorant mixing means, and the deodorant is mixed with this air. Since the air can be returned to the fourth port of the switching member and further discharged to the outside of the device, this mixed air can be applied to an object with a smell to deodorize the object.

The switching pot allows the air sucked into the air pump or the air sent out from the air pump to be discharged out of the device as it is, or the air is introduced from the switching pot to the deodorant mixing means to mix the deodorizer. After the mixed air is discharged, the selection of whether to discharge the mixed air can be easily made by rotating the switching member.

<Example> Hereinafter, an example will be described in detail with reference to the accompanying drawings.

FIG. 1 is a sectional plan view of an air supply device showing an embodiment of this invention, and FIG. 2 is a side view of FIG. 1.

This air supply device houses an air pump 2 that discharges sucked air at a predetermined pressure and a deodorizer 3, and mixes the sublimated deodorizer 3 with the air discharged from the air pump 2. The deodorant accommodating section 4 is connected to the air pump 2 and the deodorant accommodating section 4 through a connecting pipe (described later), and the air discharged from the air pump 2 is passed through the deodorant accommodating section 4 and then Switching knob 5 for selecting whether to discharge the air to the outside or to directly discharge the air sent from the air pump 2 to the outside without passing it through the deodorant storage section 4.
These parts are integrally housed in a box-shaped main body case 6.

The air pump 2 is constituted by a well-known small pump such as a rotary type, a piston type, or a diaphragm type, and sucks air through an intake filter 21 provided at the bottom of the air pump 2.
It can be continuously delivered from the discharge port 22.
The air pump 2 has a built-in motor, and the motor is driven and stopped by operating a switch 25 provided on the top surface of the main body case 6.

The deodorant accommodating portion 4 is formed of a cylinder body 41 with a bottom, and the deodorant 3 is housed inside the cylinder body 41 . As shown in FIG. 3, the cylindrical body 41 has an intake port 42 through which air enters, an outlet 43 from which air in the cylindrical body 41 exits, and a cap 44 that releasably closes the upper opening of the cylindrical body 41. The sublimated deodorant 3 can be mixed with the air that has entered the cylinder body 41 through the intake port 42, and the air can be taken out through the port 43.

As shown in FIGS. 4 to 6, the switching switch 5 is mainly composed of a switch main body 51 and a switching member 52. The switching member 52 is formed in a substantially cylindrical shape, and the switch main body 51 It is rotatably fitted into a cylindrical hollow part 51a formed inside. On the outer surface of the Kotuku main body 51, there is a first port 53 for introducing air blown from the outlet 22 of the air pump 2 through the connecting pipe 61 into the Kotuku main body 51, and a first port 53 for introducing air from the inside of the Kotuku main body 51 to the outside thereof. A second port 54 for discharging air is provided. The first port 53 has a communication hole 55a.
The second port 54 communicates with the hollow portion 51a through a communication hole 55b. The second port 54 is connected to an air outlet 63 provided in the main body case 6 via a connecting pipe 62.
Air can be sent out from the air supply device.

The switching member 52 is rotatable within a rotational angle of 90 degrees, and has a switching knob 50 at one end for performing a rotation operation, and has a switching knob 50 on the opposite side from the switching knob 50. A third port 57 and a fourth port 58 are provided at the end.

To further explain this switching member 52, when the switching member 52 is turned to a predetermined rotation position (see FIGS. 5 and 6), the
A first communicating path 59 is provided that directly communicates the first port 53 and second port 54 of the first port. When the first port 53 and the second port 54 are in communication with each other, the first communication path 59 allows the air sent from the air pump 2 to be directly discharged from the air discharge port 63.

Furthermore, when the switching member 52 is rotated 90 degrees from the above state (see FIGS. 3 and 4), the switching member 52 connects the communication hole 55a on the first port 53 side and the third port 5.
7, and two second communication passages 56a that communicate the communication hole 55b on the second port side with the fourth port 58,
56b.

The third port 57 is connected to the intake port 42 of the deodorant accommodating section 4 via a connecting pipe 65, and introduces the air that has entered the deodorant main body 51 from the deodorant main body 51 into the deodorant accommodating section 4. can be done.

Further, the fourth port 58 is connected to a connecting pipe 6.
6 is connected to the outlet 43 of the deodorant accommodating part 4, and the mixed air sent out from the deodorant accommodating part 4 and returned to the pot body 51 is transferred from the second communication path 56b to the outlet 43 of the deodorant accommodating part 4. 2 ports can be sent in 54 directions. Therefore, the mixed air is
The air is sent from the port 54 to the air outlet 63 and sent out of the air supply device.

Note that the switching member 52 has a hollow portion 51a on the outer periphery.
Two O-rings 52a are attached to prevent air leakage between the two O-rings 52a.

With the above configuration, the switching member 52 is rotated to connect the two second communication paths 56a and 56b to the first port 53 and the second port 5 of the Kotoku main body 51, respectively.
4 and in this state, by driving the air pump 2, the air sent out from the discharge port 22 of the air pump 2 is transferred to the first port 5 of the switching tank 5.
3, the deodorant can be bypassed from the third port 57 and sent into the cylinder 41 of the deodorant accommodating section 4 (see FIG. 3). Here, the sublimated deodorizer 3 is mixed with the air, and this mixed air returns to the inside of the pot body 51 from the fourth port 58.
Furthermore, the air that has returned to the inside of the Kotuku main body 51 is
The air is sent from the port 54 to the air outlet 63 and is sent out of the case body 6. Therefore, the mixed air delivered by the air supply device has a deodorizing effect due to the deodorizing agent 3 contained therein.

Therefore, if this air supply device is connected to the air mat for preventing bedsores, even if there is a possibility that the user of the air mat may generate odor, the odor can be eliminated. Therefore, the air mat can be used comfortably without causing any odor in the room.

On the other hand, when replenishing the deodorant 3, interrupting deodorization, or no longer needing to deodorize, the switching member 52 can be rotated 90 degrees to switch to the first port of the main body 51. 53 and second port 54
The first communicating path 59 in the switching member 52 can directly communicate the air with the first communication path 59, and the air sent out from the air pump 2 can be sent out as it is through the air discharge port 63. In this case, since air is not introduced into the deodorant storage section 4, there is no risk of air leakage even if the cap 44 of the deodorant storage section 4 is opened, and the air pump 2 can be kept running while deodorizing. Agent 3 can be replenished. Further, even when mixing of the deodorant is interrupted, air not containing the deodorant can be easily sent out by rotating the switching member 52.

In addition, in the above embodiment, an example was shown in which the deodorant accommodating part 4 and the switching pot 5 were provided on the downstream side of the air pump 2, but the deodorant accommodating part 4 and the switching pot 5 were provided on the upstream side of the air pump 2. It can also be provided in In this case as well, by providing a switch on the upstream side of the deodorant storage section, the air pump can suck air mixed with deodorant or directly suck the air as it is. , air mixed with deodorant or air without mixed deodorizer can be delivered.

A solid deodorant 3 with sublimation properties is preferred from the viewpoint of handling, but liquid or gaseous deodorants may also be used as long as the deodorant can be mixed with air in an appropriate proportion. can be used.

For liquid or gas deodorant, drop the liquid deodorizer into the air path that communicates the third and fourth ports of the switch, or make a part of the air path narrower and let the air flow. It is also possible to mix the deodorant into the air by sucking in the gas or mist deodorant using the suction force generated.

In addition, if you want to mix the deodorant as described above or stop the mixing of the deodorant without using the switching switch provided in this air supply device, you can use the opening/closing switch or the three-way switch. There are several possible configurations. However, if the above-mentioned opening/closing socket is used, it is necessary to connect the air pump and the air mat with two pipes, and to attach the opening/closing socket to each pipe.
Furthermore, even when using a three-way socket, a configuration must be adopted in which the three-way socket and the air mat are connected by two pipes. For this reason, no matter which type of kettle is used, two air intake ports are required on the air mat side, and general air mats with only one air intake port do not allow air mixed with deodorizer to be sent out. I can't.

Therefore, if the air supply device of this invention is used, the problems encountered when using the above-mentioned opening/closing pot or three-way pot can be solved, and air mixed with deodorizer can be delivered even with the air mat that is already in use. It is possible.

<Effects of the invention> As described above, according to the air supply device of this invention, it is possible to mix a deodorizer into the air sent out by the air pump, so that it is possible to mix the deodorizing agent into the air sent out by the air pump, so that it is possible to mix the deodorizing agent with the air sent out by the air pump. However, by blowing air using this air supply device, the above-mentioned odor can be eliminated. Therefore, even when using an air mat, etc. in a place where air stagnates, such as indoors, if the air supply device blows air to the air mat, etc., it is possible to prevent the release of odors. Air mats, etc. can be used in a comfortable environment.

Further, when there is no need to mix the deodorant, mixing of the deodorant can be stopped by a simple operation of the switching knob, and only air can be easily blown.

Furthermore, according to the switching device used in this air supply device, air sent directly from the air pump and air mixed with deodorant can be supplied through one air outlet. Only one air intake port is required on the side to be blown, so there is no risk of complicating the structure of the side to be blown, and the air supply device can be easily attached to an air mat, etc. that is already in use. It can be used to deodorize.

[Brief explanation of the drawing]

FIG. 1 is a sectional plan view of an air supply device showing an embodiment of this invention, FIG. 2 is a side view of FIG. 1, and FIGS. 3 and 5 are sectional views of main parts of the air supply device, respectively. FIGS. 4 and 6 are cross-sectional views showing different states of the switching knob. 2...Air pump, 3...Deodorant, 4...Deodorant storage section, 5...Switching pot, 51...Cock main body, 52...Switching member, 53...First port, 5
4...Second port, 56a, 56b...Second communication path, 57...Third port, 58...Fourth port,
59...First communication path.

Claims (1)

[Claims for Utility Model Registration] An air pump that sends out the sucked air; A deodorant mixing means that mixes a deodorant by introducing the air sucked into the air pump or the air sent out from the air pump; and the above. a switch body for stopping mixing of the deodorant, the switch body having a first port communicating with the air pump and a second port communicating with the outside of the device; A third port, which is rotatably fitted into the body and communicated with the air inlet side of the deodorant mixing means, and a fourth port, which is connected to the air discharge side of the deodorant mixing means, are placed in a predetermined rotational position. a first communication path for directly communicating the first port and the second port; and a first communication path for directly communicating the first port and the second port; An air supply device characterized by comprising a switching member having two second communication paths that communicate with each other.