JP7371291B1 - suction device - Google Patents

Abstract

[Problem] To provide a highly silent suction device. [Solution] The suction device 1 is an electric suction device 1, and includes a suction pot 3 for storing liquid or particulate matter, and a suction pot 3. a suction device body 2 including a suction pump unit 4 connected to the suction pump unit 4 and having an electrically driven motor 41 for suctioning the air in the suction pot, the suction pump unit 4 having a vertical length of 3 When divided into equal parts, it is fixed to the housing (front housing 12, internal housing 14) at the center position of the three equal parts. [Selection diagram] Figure 4

Description

The present invention relates to an electric suction device having a built-in suction pump having an electric power source, such as an electric pump.

Patent Document 1 proposes an electric suction device.
Of course, such so-called compact or portable electric suction devices can be used by doctors, nurses, etc. to suction patients in hospitals, but general users who are not medical professionals can use them to treat patients. In many cases, the user himself/herself performs suction for himself or his family.

Utility model registration No. 3203434

An object of the present invention is to provide a highly silent suction device.

The suction device according to the first aspect of the present invention is an electric suction device, and includes a suction pot for containing liquid or particulate matter, and a suction device connected to the suction pot to suck air in the suction pot. an aspirator main body including a suction pump unit having an electrically driven motor, and the suction pump unit is arranged in a housing at a central position of the three equal parts when the length in the vertical direction is divided into three equal parts. Fixed.

Preferably, the suction pump unit has a plurality of fixing ribs for fixing to the housing at the center position of the three equal parts when the length in the vertical direction is divided into three equal parts, and the ribs include: It is fixed via the housing and elastic body.

Preferably, the elastic body is fitted into the rib, and the housing is held by fitting the elastic body from the front and back directions.

The suction device according to the present invention makes it possible to provide a highly silent suction device.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing the overall appearance of an aspirator according to an embodiment of the present invention as a perspective view seen from the front side thereof. It is an explanatory view showing the overall appearance of the suction device as a perspective view seen from the rear direction. FIG. 2 is an explanatory diagram of the aspirator main body 2 of the aspirator disassembled from the front. FIG. 2 is an explanatory diagram of the aspirator main body 2 of the aspirator as viewed from the rear, with the aspirator main body 2 disassembled. FIG. 5 is an explanatory diagram of the suction pump unit shown in FIGS. 3 and 4. FIG. 6 is an enlarged view of the second fixing rib portion of FIG. 5. FIG. It is an explanatory view of a rib damper. FIG. 3 is an explanatory diagram of a cross section of a rib damper. FIG. 3 is an explanatory diagram of driving modes.

<First embodiment>
FIG. 1 is an explanatory diagram showing the overall appearance of a suction device 1 according to an embodiment of the present invention as a perspective view seen from the front direction.

The suction device 1 is broadly divided into a suction device main body 2 and a suction pot 3.
The suction device 1 is manufactured to have a portable size and weight. Therefore, a handle is attached to the suction device main body 2 for carrying the device.
A suction pump unit 4 is provided inside the suction device main body 2 (see FIG. 3).
The suction pot 3 has a function to collect phlegm (liquid or particulate matter, such as, but not limited to, phlegm, nasal mucus, etc.) from the person being sucked.
This suction pot 3 is provided with a bottle handle 31 for ease of handling.
Further, the suction pot 3 is provided with a filter portion 32 to prevent sputum etc. from flowing into the suction pump unit 4.
This suction pot 3 may be available in versions of several sizes (different diameters of the cylinder, etc.).
This suction pot 3 is fixed to the suction device main body 2 by a bottle fixture 33.
The suction device main body 2 is driven by an external power source (AC power source/DC power source).
A cord or the like is inserted into the external power outlet 23 to be electrically connected to a household power source or the like.
Note that a battery may be provided inside so that the device can be driven even in the absence of an external power source. In this case, the battery is generally charged when connected to an external power source.
The operation of the suction device main body 2 is performed using a plurality of buttons and display sections 22 (dials, etc.) provided on the suction device main body 2 shown in FIG. It is preferable to be able to select the display, drive mode, etc.
The suction pot 3 is provided with a suction terminal 34 to which a suction hose is connected.
A suction hose is connected to this suction terminal 34, and sputum or the like is suctioned from the patient's throat through the suction port at the opposite end of the hose.

FIG. 2 is an explanatory diagram showing the overall appearance of the suction device 1 as a perspective view seen from the rear side.

As shown in FIG. 2, the suction pot 3 is also held from the rear direction by a pot fixture 33.
Further, the aforementioned battery cover 25 for the battery is provided on the back surface of the suction device main body 2.
As shown in FIG. 2, a discharge port 24 for exhausting air from the suction pump unit 4 is provided on the back side of the suction device main body 2.

FIG. 3 is an explanatory diagram of the aspirator main body 2 of the aspirator 1 exploded from the front.

As shown in FIG. 3, the suction device main body 2 includes a front housing 12, a rear housing 13, an internal housing 14, and a suction pump unit 4.

FIG. 4 is an explanatory diagram of the aspirator body 2 of the aspirator 1 taken apart from the rear.

The suction pump unit 4 has two first fixing ribs 4a and a second fixing rib 4b that are horizontally lined up in the left and right direction in the front direction (see also FIG. 3 below. The fixing rib 4b is hidden due to the arrangement).
The suction pump unit 4 has two third fixing ribs 4c and a fourth fixing rib 4d that are arranged horizontally in the left-right direction in the rear direction.
Note that the first fixing rib 4a and the third fixing rib 4c are located at the same position in the vertical and horizontal directions, and the first fixing rib 4a is located in the front position in the front-rear direction. are doing.
Similarly, the second fixing rib 4b and the fourth fixing rib 4d are located at the same position in the vertical and horizontal directions, and the second fixing rib 4b is located in the front position in the front-rear direction. positioned.

A first fixing recess 12a and a second fixing recess 12b are formed in the front housing 12 at positions corresponding to the first fixing rib 4a and the second fixing rib 4b, respectively.
A third fixing recess 14c and a fourth fixing recess 14d are formed in the internal housing 14 at positions corresponding to the third fixing rib 4c and fourth fixing rib 4d, respectively.

A rubber member for vibration isolation (not shown) is attached to the first fixing rib 4a, the second fixing rib 4b, the third fixing rib 4c, and the fourth fixing rib 4d so as to cover the outside thereof.
The first fixing rib 4a, the second fixing rib 4b, the third fixing rib 4c, and the fourth fixing rib 4d are connected to the corresponding first fixing recess 12a and second fixing rib through the rubber member described above. It is fitted into the recess 12b, the third recess 14c, and the fourth recess 14d.
Thereby, the suction pump unit 4 is held at a predetermined position within the suction device 1.

FIG. 5 is an explanatory diagram of the suction pump unit 4 shown in FIGS. 3 and 4.

As shown in FIG. 5, the suction pump unit 4 includes a cylinder head 44, a check valve section 150, a crank casing section 160, and a motor 41.
The cylinder head 44 includes an intake terminal 141 , an intake passage 142 communicating with the intake terminal 141 , a discharge terminal 143 , a discharge passage 144 communicating with the discharge terminal 143 , and a cylinder head plate portion 146 . ing.

Further, the suction pump unit 4 is a two-cylinder piston pump 40.
More specifically, it has a first piston pump 40a and a second piston pump 40b.
One cylinder head 44 also serves as the cylinder heads of two piston pumps 40, the first piston pump 40a and the second piston pump 40b.
The crank casing portion 160 includes a first crank casing 162a on the first piston pump 40a side and a second crank casing 162b on the second piston pump 40b side.
The crank casing part 160 also has a first fixing rib 4a and a second fixing rib 4b (the opposite side also has a third fixing rib 4c and a fourth fixing rib 4d, respectively). (See also Figure 6).
Further, the crank casing portion 160 has a first connecting portion 161a on the first piston pump 40a side and a second connecting portion 161b on the second piston pump 40b side.
A first check valve portion 150a is sandwiched between the cylinder head 44 (more specifically, the cylinder head plate portion 146) and the first connecting portion 161a, and is fixed with bolts 151.
A second check valve portion 150b is sandwiched between the cylinder head 44 (more specifically, the cylinder head plate portion 146) and the second connecting portion 161b and is fixed with bolts 151.
Note that, as shown in FIG. 5, a first eccentric member is fixed to the first motor shaft 41a.

FIG. 6 is an enlarged view of the second fixing rib 4b portion of FIG. 5.

As shown in FIG. 6, the second fixing rib 4b extends horizontally from the side of the suction pump unit 4.
More specifically, it has a second fixing rib connecting portion 411b that is narrow in the left-right direction in FIG. 6, and a second fixing rib extension portion 412b that is wide in the left-right direction.

FIG. 7 is an explanatory diagram of the rib damper 500.

The rib damper has a substantially rectangular parallelepiped shape.
Further, the rib damper 500 is formed with an opening 501 that looks like a cross, as shown in FIG.
The second fixing rib 4b will be inserted into this opening 501.

FIG. 8 is an explanatory diagram of a cross section of the rib damper 500.

As shown in FIG. 8(b), the rib damper 500 is formed so that the width in the vertical direction decreases toward the side opposite to the side where the second fixing rib 4b is inserted.
As shown in FIG. 8(c), the rib damper 500 is formed so that the width in the left-right direction decreases toward the side opposite to the side where the second fixing rib 4b is inserted.
Further, in the rib damper 500, a protrusion 502 is formed on the surface side of the opening 501.
The rib damper 500 is fixed by engaging this protrusion 502 with the shape of the second fixing rib protrusion 41 shown in FIG.
Although the second fixing rib 4b has been described above, the same applies to the first fixing rib 4a, the third fixing rib 4c, and the fourth fixing rib 4d (see also FIGS. 3 and 4). thing).
The rib damper 500 is made of a material that absorbs vibrations, such as rubber (elastic body/elastomer).

Then, with the rib damper 500 attached, as shown in FIG. (via the fourth fixing rib 4d and the rib damper 500), and is fixed.
Similarly, with the rib damper 500 attached, as shown in FIG. It is fixed by being fitted into the inside (via the second fixing rib 4b and the rib damper 500).

Here, as shown in FIG. 5, the first fixing rib 4a, the second fixing rib 4b, the third fixing rib 4c, and the fourth fixing rib 4d are formed near the center of the suction pump unit 4. .
In other words, the first fixing rib 4a, the second fixing rib 4b, the third fixing rib 4c, and the fourth fixing rib 4d are formed near the center of gravity of the suction pump unit 4.
Since it is difficult to specify the area near the center and the center of gravity, it can be said that when the suction pump unit 4 is divided into three equal parts in the vertical direction, it is formed in the central range.
In this way, when the first fixing rib 4a, the second fixing rib 4b, the third fixing rib 4c, and the fourth fixing rib 4d divide the suction pump unit 4 into three equal parts in the vertical direction, the center position ( Since it is formed near the center of gravity, it is possible to suppress vibration.
The fact that vibrations can be suppressed also means that noise can be reduced.

In addition, the suction pump unit 4 is held (pinched, gripped) only by the first fixing rib 4a, second fixing rib 4b, third fixing rib 4c, and fourth fixing rib 4d via the suction pump unit 4. This also means that vibrations can be suppressed as well.
Further, since the first fixing rib 4a, the second fixing rib 4b, the third fixing rib 4c, and the fourth fixing rib 4d of the suction pump unit 4 are held via the rib damper 500, the rib damper 500 It is also possible to suppress vibrations by the vibration suppressing effect of .

FIG. 9 is an explanatory diagram of the operation mode (transition between stop mode and operation mode (normal operation mode/silent mode)).

As shown in FIG. 9, the suction device 1 has a normal operation mode M03, a silent mode M02, and a stop mode M01.
In the past, if the rotation speed was lowered to reduce noise, the flow rate would drop, resulting in a significant drop in performance.
However, in this embodiment, by implementing various measures as described above, it has become possible to maintain a certain level of performance even when the rotational speed is reduced (silent mode, rotational speed lower than 1300 rpm).
As a result, it has become possible to provide such a silent mode in conventional products that did not have a mode called silent mode M02.

<Configuration and effects of embodiment>
The suction device 1 is an electric suction device 1, which includes a suction pot 3 for containing liquid or particulate matter, and is connected to the suction pot 3 and is electrically driven to suck air in the suction pot. a suction device main body 2 including a suction pump unit 4 having a motor 41, and when the length in the vertical direction is divided into three equal parts, the suction pump unit 4 is attached to the housing (front) at the center position of the three equal parts. It is fixed to the housing 12 and the internal housing 14).
With such a configuration, a highly silent suction device can be provided.

The suction pump unit 4 has a plurality of fixing ribs (first fixing rib 4a, second fixing rib 4a, second fixing rib 4a, ribs 4b, third fixing ribs 4c, and fourth fixing ribs 4d), and the ribs are fixed to the housing via an elastic body (rib damper 500).
With such a configuration, it is possible to support the device at multiple locations, thereby suppressing vibrations and increasing quietness.

The elastic body (rib damper 500) is fitted into the ribs (first fixing rib 4a, second fixing rib 4b, third fixing rib 4c, and fourth fixing rib 4d), and the casing (front casing 12, The internal casing 14) is held by fitting an elastic body (rib damper 500) in the front-rear direction.
With such a configuration, a highly silent suction device can be provided.

Examples of the liquid or particulate material of the present invention include, but are not limited to, phlegm, nasal mucus, and the like.
Furthermore, it goes without saying that the suction device of the present invention does not have to be portable and may be fixed.
The structure, materials, connection of each member, etc. of the present invention can be variously changed without changing the gist of the present invention.
The material can also be freely selected from metal, plastic, FRP, etc.
For example, it is possible to combine two or more members into one, or conversely, it is also possible to configure one member from two or more other members and connect them.
Further, the above embodiment is merely one of the best modes at present.

1 Suction device 2 Suction device body 3 Suction pot 4 Suction pump unit 4a First fixing rib 4b Second fixing rib 4c Third fixing rib 4d Fourth fixing rib 12 Front housing 12 Front housing 12a 1 fixing recess 12b 2nd fixing recess 13 Housing 14 Internal housing 14c 3rd fixing recess 14d 4th fixing recess 22 Display section 23 External power outlet 24 Discharge port 25 Battery lid 31 Bottle handle 32 Filter section 33 Bottle fixture 33 Pot fixture 34 Suction terminal 40 Piston pump 40a First piston pump 40b Second piston pump 41 Motor 41a First motor shaft 44 Cylinder head 141 Intake side terminal 142 Intake flow path 143 Discharge side terminal 144 Discharge flow path 146 Cylinder head plate part 150 Check valve part 150a First check valve part 150b Second check valve part 151 Bolt 160 Crank casing part 161a First connection part 161b Second connection part 162a First crank casing 162b Second crank casing 411b Second fixing rib connection part 412b Second fixing rib extension part 500 Rib damper 501 Opening part 502 Projection M01 Stop mode M02 Silent mode M03 Normal operation mode

Claims (3)

It is an electric suction device,
a suction pot for containing liquid or particulate matter;
a suction device body including a suction pump unit connected to the suction pot and having an electrically driven motor for suctioning air in the suction pot;
The suction pump unit is fixed to the housing only at the center position of the three equal parts when the vertical length of the suction pump unit is divided into three equal parts. The suction pump unit has a plurality of fixing ribs for fixing to the housing at the center position of the three equal parts when the length in the vertical direction is divided into three,
The suction device according to claim 1, wherein the fixing rib is fixed to the housing via an elastic body. the elastic body is fitted into the rib,
The elastic body is held in the housing by the housing fitting the elastic body into the housing from the front and rear directions.
The suction device according to claim 2.

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