JP2013052008A - Air injection device and vacuum cleaner using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easy-to-use air injection device at cleaning operation.SOLUTION: The air injection device includes: an opening 2 for sucking dust or injecting air; a suction fan 5 arranged in a suction chamber 6 on which sucking force acts, and working by the sucking force; an injection fan 9 arranged in an injection chamber 10, and generating injection force; a rotary shaft 13 transmitting power of the suction fan 5 to the injection fan 9; an air inlet 7 taking in outside air for rotating the suction fan 5; a driving means 15 activating a switch 14 for sucking or injecting air from the opening 2; a lid 17 varying the rate of the outside air taken in from the air inlet 7; a lid driving means 18 for activating the lid 17; and an operation means 19 for allowing a user to switch the rate of air injected from the opening 2. The user operates the operation means 19 to activate the lid 17, and thereby the amount of taken-in outside air is regulated. As a result, a rotating speed of the injection fan 9 is varied and the amount of air injected from the opening 2 can be varied.

Description

  The present invention relates to an air injection device that blows off dust by injecting air, and a vacuum cleaner using the same.

  A typical example of a conventional technique having a function of blowing dust (hereinafter referred to as a blower function) includes a form in which the exhaust of a vacuum cleaner is used for a blower (see, for example, Patent Document 1).

  FIG. 8 is an overall view of a conventional vacuum cleaner having a function of blowing air (blower function), FIG. 9 is a transverse sectional view of the vacuum cleaner during normal use, and FIG. 10 is a blower of the vacuum cleaner. A cross-sectional view when the function is used is shown.

  In FIG. 8, a conventional vacuum cleaner main body 50 of this type of electric vacuum cleaner includes a main body control means 49, an electric blower 57, and a dust collection chamber 58. A connection port 51 formed in the front portion of the cleaner body 50 communicates with the dust collection chamber 58 and is connected to a connection pipe 52 disposed at one end of the hose 53. The suction port body 56 is connected to the dust collection chamber 58 through a hand operating part 54 or an extension pipe 55 disposed at the other end of the hose 53.

  9 and 10, the electric blower support wall 59 has an upper and lower split configuration, and the rear end of the electric blower 57 is sandwiched via the soft rubber 60. The airflow 62 discharged from the electric blower 57 is discharged from the exhaust port 61 to the outside of the cleaner body 50.

  An exhaust passage 63 that communicates the electric blower 57 and the exhaust port 61 forms a closed space by the electric blower support wall 59 and the isolation wall 64.

  The convex portion 67 of the opening / closing lid body 65 that can be opened and closed by the rotating shaft 66 is configured to fit into the connection port 68 that is configured to allow the connection pipe 52 to be connected in communication, and when the connection pipe 52 is connected to be connected. Is configured to contact the electric blower support wall 59 and block the exhaust passage 63.

  The operation and operation of the conventional vacuum cleaner configured as described above are as follows.

  As shown in FIG. 8, during normal use, the air flow 62 sucked from the connection port 51 is discharged from the electric blower 57 to the outside through the exhaust passage 63 through the exhaust passage 63. At this time, the opening / closing lid body 65 is in a closed state, and the convex portion 67 of the opening / closing lid body 65 fits into the connection port 68 to prevent the inflow of air from the outside.

  On the other hand, as shown in FIG. 10, if the connection pipe 52 is connected to the connection port 68 when the blower is used, the opening / closing lid 65 rotates and stops at a position where it comes into contact with the electric blower support wall 59. Therefore, the airflow 62 sucked from the connection port 51 passes from the electric blower 57 to the middle of the exhaust passage 63 and is injected to the outside through the connection port 68, the hose 53 and the extension pipe 55.

In addition, as shown in FIG. 8, during normal use, the hose 53 is connected to the cleaner body 50, but is connected to the tip of the hand operating part 54 at the other end of the hose 53 or the tip of the extension pipe 55. Then, an air injection device has been proposed in which the suction fan is rotated by using the intake air and the injection fan is rotated by the power to inject the air sucked from another air intake port.

JP 2000-217746 A

  However, in the form in which the exhaust of the conventional vacuum cleaner is used for the blower, even if the exhaust is actually clean, an unsanitary image may be held in terms of using the exhaust that sucked in the dust. In recent years, the use of hoses and extension pipes used for suctioning such dusts has reduced the opportunity for use due to hygiene concerns, such as the possibility of a small amount of dust adhering to the path being jetted, and in recent years There are few vacuum cleaners with a blower function in this form.

  In addition, the conventional blower function does not have a function to adjust the strength of the exhaust gas. Therefore, when jetting toward dust in the vicinity of the user, the dust is stronger than the user thinks. There is a problem that dust is scattered around and contaminated.

  The present invention is intended to solve the conventional problems as described above, and has a hygienic blower function and a suction function so that the user can adjust the amount of air to be ejected as necessary. It is an object of the present invention to provide an air jet device that is very easy to use and a vacuum cleaner using the air jet device.

  In order to solve the above-described conventional problems, the air injection device of the present invention has an opening for sucking dust or injecting air on a floor surface, a suction chamber on which suction force acts, and a function for jetting air An injection chamber having an intake chamber, a suction fan arranged in the suction chamber and operating by suction force, an injection fan arranged in the injection chamber and generating an injection force, and power transmission for transmitting power of the suction fan to the injection fan Means, an air intake port for taking in outside air to rotate the suction fan, a switch for acting air suction or jet from the opening, and a drive means for operating the switch; A lid for changing the amount of outside air taken in from the air intake port, lid driving means for operating the lid, and an operation for switching the amount of air ejected from the opening by the user Equipped and used By operating the operating means and adjusting the amount of outside air taken in from the air intake port, thereby changing the rotational speeds of the suction fan and the injection fan, from the opening Since the amount of air to be ejected is changed, and the user can freely adjust the amount of air to be ejected by operating the operating means, an air ejecting device that is very easy to use can be provided.

  Moreover, the vacuum cleaner of this invention is provided with the air injection apparatus as described in any one of Claims 1-3, and the user operates the operation means of an air injection apparatus and injects the air Since the amount can be freely adjusted, it is possible to provide a very convenient vacuum cleaner.

  The air injection device of the present invention and the electric vacuum cleaner using the air injection device are very convenient because the user can adjust the amount of air to be injected as necessary.

1 is a schematic cross-sectional view of an air injection device according to Embodiment 1 of the present invention. Schematic sectional view of the air injection device Schematic sectional view of the air injection device (A) Schematic cross-sectional view of the air injection device, (b) Schematic cross-sectional view of the air injection device Schematic of operating means of the air injection device Schematic sectional view showing another example of the air injection device Schematic sectional view showing another example of the air injection device General view of a conventional vacuum cleaner with a function to blow off air (blower function) Cross section of the vacuum cleaner during normal use Cross section when using the blower function of the vacuum cleaner

  According to a first aspect of the present invention, an opening for sucking dust or ejecting air on the floor, a suction chamber on which suction force acts, an ejection chamber having a function for ejecting air, and the suction chamber are arranged. In order to rotate the suction fan, a suction fan that is operated by suction force, an injection fan that is arranged in the injection chamber and generates injection force, power transmission means that transmits power of the suction fan to the injection fan, and An air intake port for taking in outside air, a switch for acting air suction or injection from the opening, a drive means for operating the switch, and an amount of outside air taken in from the air intake port A lid for changing, a lid driving means for operating the lid, and an operating means for the user to switch the amount of air ejected from the opening, and the user controls the operating means By operating By operating the body and adjusting the amount of outside air taken in from the air intake port, the rotational speed of the suction fan and the injection fan is changed to change the amount of air injected from the opening. Since the operator can freely adjust the amount of air to be ejected by operating the operating means, it is possible to provide an air ejecting apparatus that is very easy to use.

  In particular, the second aspect of the invention is such that the power source of the lid driving means of the first aspect of the invention is supplied from a commercial power source. In vacuum cleaners, hoses and extension pipes have built-in wiring for supplying commercial power to the motor, so if that wiring is used, it is built into the air injection device without using a new power supply cable. Power can be easily supplied to the lid driving means.

  In particular, the third invention is such that the power of the lid driving means of the first invention is supplied from a secondary battery, and is connected to a hose or extension pipe that does not have a built-in power supply wiring. Can also be used, greatly improving usability.

  The vacuum cleaner which concerns on 4th invention is provided with the air injection apparatus described in any one of Claims 1-3, and a user operates the operation means of an air injection apparatus, and injects it. Since the amount of air can be adjusted freely, it is possible to provide an extremely convenient vacuum cleaner.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a schematic cross-sectional view of an air injection device according to Embodiment 1 of the present invention, FIG. 2 is a schematic cross-sectional view of the air injection device, FIG. 3 is a schematic cross-sectional view of the air injection device, and FIG. ) Is a schematic cross-sectional view of the air injection device, FIG. 4B is a schematic cross-sectional view of the air injection device, and FIG. 5 is a schematic view of operating means of the air injection device. In addition, the same code | symbol is attached | subjected to the same part as the prior art example shown in FIGS. 8-10, and the description is abbreviate | omitted.

The air injection device 1 in the present embodiment sucks outside air into the suction chamber 6 in order to rotate the suction fan 5, the opening 2, the discharge port 4, the suction chamber 6 equipped with the suction fan 5 inside. Provided in the bottom surface of the suction chamber 6, which is equipped with the air intake port 7, the second air intake port 8, the injection fan 9 inside, and the suction chamber 6. A held connecting portion 11, a bearing 12 fixed to the connecting portion 11, and a rotary shaft 13 that is a power transmission means that is rotatably held by the bearing 12 and holds the suction fan 5 and the injection fan 9 at both ends. I have.

  Each of the suction fan 5 and the injection fan 9 is formed of a sirocco-type fan, the discharge port 4 is at the center of rotation of the suction fan 5 on the suction chamber 6, and the second air intake port 8 is At the center of rotation of the injection fan 9 on the injection chamber 10, an opening is arranged on the surface opposite to the connecting portion 11.

  There is a switching device 14 for switching communication between the opening 2 and the suction chamber 6 or communication between the opening 2 and the injection chamber 10, and driving means 15 for operating the switching device 14 in the vicinity of the switching device 14. And control means 16 are provided. The opening of the air intake port 7 is provided with a lid 17 for changing the opening area, and the lid 17 can be operated by the lid driving means 18. The operation of the lid driving means 18 is also controlled by the control means 16. Further, the operation means 19 is arranged in a place where the user can easily perform the operation.

  The operation of the air injection device in the present embodiment configured as described above will be described below.

  As shown in FIG. 2, when the switch 14 is moved to the injection chamber 10 side by the driving means 15, the discharge port 4 is provided at the tip of the hose 53 connected to the cleaner body 50 or the tip of the extension pipe 55. When the vacuum cleaner is operated in the connected state, a strong suction wind is generated from the discharge port 4.

  At that time, outside air is sucked from the opening 2 and the air intake 7 respectively, and the intake air is sucked from the opening 2 to the discharge port 4 and from the air intake 7 to the discharge port 4 as shown by arrows in FIG. The wind will flow. The air intake 7 has a mesh-like shape (not shown) so that the surface of the air intake 7 is not fully opened so that only the outside air is sucked without sucking dust. Cover to prevent inhalation. Further, when the user brings the opening 2 close to the floor surface or the like to be cleaned, if there is dust on the floor surface, the user sucks the dust from the opening 2 and passes through the connection pipe 52 from the discharge port 4. It is housed in a dust collection chamber 58 in the cleaner body 50.

Next, as shown in FIG. 3, when the switch 14 is moved to the suction chamber 6 side by the driving means 15, the flow of the wind is blocked by the switch 14 from the opening 2, so that the opening 2 From the air intake port 7, a suction air volume is generated toward the discharge port 4 as shown in the figure.
At this time, the suction fan 5 can be rotated by the suction air sucked from the air intake port 7. The rotated suction fan 5 transmits the power of the suction fan 5 to the ejection fan 9 through the rotating shaft 13 held by the bearing 12 to rotate the ejection fan 9. The rotated spray fan 9 sucks outside air from the second air intake port 8 and sprays the sucked air from the opening 2. In FIG. 3, the flow of the suction air and the jet air at that time is indicated by arrows.

  In this way, by switching the switch 14, it becomes possible to perform suction or jet air from the opening 2, and bring the opening 2 close to the floor surface to be cleaned, etc. It is possible to perform cleaning by sucking certain dust or jetting it in reverse.

Next, as shown in FIG. 4, the lid body 17 arranged in the air intake port 7 will be described. As shown in FIG. 4A, when the lid 17 is stopped at a position where the opening is fully opened, the intake air sucked from the air intake port 7 is in the maximum state. Since the suction fan 5 is rotated by the intake air, the rotation speed of the suction fan 5 is maximized in this case. The suction fan 5 rotates the ejection fan 9 at the same rotational speed via the rotation shaft 13. Therefore, since the rotation speed of the injection fan 9 is also in the maximum state, the outside air sucked from the second air intake port 8 is also in the maximum state, and as a result, the amount of air injected from the opening 2 is also in the maximum state. .

  Next, as shown in FIG. 4B, when the lid 17 closes the opening and the suction air sucked from the air intake 7 is reduced, the amount of air sucked from the air intake 7 is small. Thus, the rotation speeds of the suction fan 5 and the injection fan 9 are reduced. Therefore, in this case, the outside air sucked from the second air intake port 8 is also reduced, and the amount of air injected from the opening 2 is reduced.

  Next, FIG. 5 shows an example of the operation means 19. As shown in this figure, the user performs the operation described above. With the “suction” and “jet” buttons, the switch 14 can be operated. In “large”, “medium”, and “small” in “injection”, the amount of air to be injected can be selected by operating the lid 17.

  Next, the air injection device of the present invention is used by being connected to the hand operation unit 54 and the extension pipe 55. In many cases, the hand operating section 54 and the extension pipe 55 are already wired to supply power to the suction port body 56. Therefore, as shown in FIG. 6, the power supply line 20 is arranged at the connection portion of the air injection device 1, and the power can be supplied from the cleaner body 50 through the hand operating portion 54 and the extension pipe 55.

  Further, as shown in FIG. 7, it is conceivable that a power source 21 is arranged in the air injection device 1 so that the air injection device 1 operates alone. As the power source 21, various types of batteries such as a dry battery, a secondary battery, a solar battery, and a fuel cell can be used.

  As described above, according to the present embodiment, the user can operate the operation means 19 to switch the injection function and the suction function and adjust the amount of air to be injected. A good air injection device can be provided.

  Moreover, if the air injection device 1 described in the above embodiment is connected to the tip of the hose 53 or the extension pipe 55 of the vacuum cleaner, a very convenient vacuum cleaner can be provided.

  As described above, the air injection device according to the present invention and the vacuum cleaner using the same suck air from the opening, perform sufficient suction where there is dust, and simultaneously from the opening, The user adjusts the amount of air jetted according to the situation of the place to be cleaned, and it can efficiently and easily clean a place that is difficult to clean with normal suction, and it can be cleaned very easily It is possible and extremely useful.

DESCRIPTION OF SYMBOLS 1 Air injection apparatus 2 Opening part 4 Ejection port 5 Suction fan 6 Suction chamber 7 Air intake port 8 2nd air intake port 9 Injection fan 10 Injection chamber 11 Connection part 12 Bearing 13 Rotating shaft (power transmission means)
DESCRIPTION OF SYMBOLS 14 Switch 15 Drive means 16 Control means 17 Cover body 18 Cover body drive means 19 Operation means 20 Power supply line 21 Power supply

Claims (4)

An opening for sucking dust or jetting air on the floor, a suction chamber on which suction force acts, a jet chamber having a function for jetting air, and a suction chamber disposed in the suction chamber and operated by suction force A suction fan, an injection fan arranged in the injection chamber and generating an injection force, power transmission means for transmitting the power of the suction fan to the injection fan, and air intake for taking in outside air to rotate the suction fan A mouth, a switch for causing air to be sucked or jetted from the opening, a driving means for operating the switch, and a lid for changing the amount of outside air taken in from the air intake. A lid driving means for operating the lid, and an operating means for the user to switch the amount of air ejected from the opening, and the lid is operated by the user operating the operating means. Move the body Wherein by adjusting the amount of outside air to be imported from the air inlet, the suction fan and by changing the rotational speed of the injection fan, air injection apparatus characterized by varying the amount of air ejected from the opening. The air injection device according to claim 1, wherein the power source of the lid driving means is supplied from a commercial power source. The air injection device according to claim 1, wherein power for the lid driving means is supplied from a secondary battery. The vacuum cleaner provided with the air injection apparatus described in any one of Claims 1-3.