JP2005160848A - Dust sucking apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust sucking apparatus with improved suction power. <P>SOLUTION: The dust sucking apparatus consists of an air spray 30 in which compressed air is reserved for generating an air current, a dust sucking machine 10 for sucking dust with the pressure difference generated from the air current by a dust suction nozzle 20, a centrifuge 40 for collecting sucked dust via a connection tube 50 and separating the dust from air, and a joint 60 for holding the dust sucking machine 10, the air spray 30 and the centrifuge 40 adjacently. As air including dust is discharged separately from dust by circulating the air current in this way, cleaning can be performed without scattering dust around, and the dust sucking force can be sustained without being weakened. Furthermore, the device can be easily carried without using energy such as electric power, and a deep and narrow place can be easily cleaned. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a dust suction device, and more particularly, to a dust suction device using suction force by an air flow.

  Conventionally, as a device for sucking and removing dust by sucking air, a device that drives a blower by a power source and sucks dust together with air as known as a vacuum cleaner or a vacuum cleaner is known. However, since a blower and a power source are required, the structure is complicated and the carrying is inconvenient. Therefore, an apparatus having a simple structure without requiring a power source has been proposed.

  Here, an example of this will be described with reference to FIG. 7. This is an injection pipe following the air injection hole, a suction pipe opened to the outside by the suction hole, a discharge pipe having a discharge hole, and the injection pipe as a suction pipe. A pipe joint communicating with the discharge pipe is formed in the dust sucker 70 as the main body, an air spray 71 is attached to the air injection hole, a dust bag 73 is attached to the discharge hole with a clip 74, and the suction hole is attached to the suction hole. A dust suction nozzle 72 is attached (for example, see Japanese Patent Application No. 2002-152624).

JP2003-339581

  The above example does not require a mechanical part or power supply like a blower, the structure is simple, and the “blowing” force, which is the original function of air spray, is converted to the “sucking” force. With a constant suction force, dust can be easily sucked out without causing dust to circulate around it, and it is also easy to carry around.

  However, in such a configuration, when the collected dust is collected in the garbage bag, it is clogged, and therefore, there is a disadvantage that the dust suction force gradually weakens.

  The object of the present invention has been made in view of the above problems, and is a garbage that improves suction force by applying two actions of suction force by air flow according to Bernoulli's theorem and centrifugal separation by cyclone effect. It is to provide a sucking device.

  The present invention includes an air flow generation means for generating an air flow, a dust suction means for sucking dust with a pressure difference generated by the air flow, and a dust collection means for collecting the dust sucked by the dust suction means. It is characterized by that.

  The air flow generating means is characterized by comprising an air spray for storing compressed air.

  The dust sucking means includes an injection pipe for injecting air from the air flow generating means, a dust suction pipe for sucking dust, and the dust sucked in communication with the injection pipe and the suction pipe together with the air. And an exhaust pipe for discharging.

  In a pipe joint portion where the injection pipe communicates with the intake pipe and the exhaust pipe, the inner diameter of the injection pipe is smaller than the inner diameters of the intake pipe and the exhaust pipe.

  The dust collecting means separates dust and air by turning the exhaust gas discharged from the exhaust pipe into a swirling airflow.

  The dust collecting means includes a cyclone tower portion that injects air from a tangential direction of the cylindrical housing to generate a swirling airflow, and accelerates the speed of the swirling airflow as the conical shape diameter decreases. The dust suction device according to claim 1, further comprising: a funnel portion; and a dust cup that centrifuges dust contained in the air and accumulates the dust.

  As described above, the dust suction device of the present invention converts the “blow-off” force, which is the original function of the air spray, into the “suck-off” force, and further separates the dust-containing air from the dust. By discharging, cleaning can be performed without causing dust to scatter. Then, by making the air flow into a swirl airflow, there is an effect that it can be maintained without weakening the force of sucking up dust.

  Further, unlike conventional vacuum cleaners, it is easy to carry without using energy such as a power source, and can be easily cleaned even in narrow and deep places.

  Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic view showing an embodiment of the present invention. FIG. 2 (a) is a perspective view of the dust absorber shown in FIG. 1 as viewed from the left front, and FIG. 2 (b) is a perspective view as viewed from the left rear. FIG. 3 is a cross-sectional view showing the structure of the dust sucker shown in FIG.

  First, referring to FIG. 1, a dust suction device 10 according to the present invention includes a dust suction device 10 as a main body, a dust suction nozzle 20 and an air spray 30 attached to the dust suction device 10, and a connection tube 50. And a joint 60 for holding the dust sucker 10, the air spray 30 and the centrifuge 40 adjacent to each other.

  2 (a), 2 (b) and FIG. 3, the dust sucker 10 is an apparatus made of a material such as plastic, and includes an air injection hole 1 for injecting air, an injection The injection pipe 2 is made thin so as not to reduce the momentum of the air, the suction hole 3 for sucking air and dust, the suction pipe 4 for passing the air and dust sucked from the suction hole 3, and the injection pipe 2 and the suction pipe 4 Are formed of an exhaust pipe 6 that joins and an exhaust hole 7 that discharges air and dust. And, it has a function of converting the force of the air injected from the air injection hole 1 into the force of sucking dust from the intake hole 3.

  The dust suction nozzle 20 is a straw made of a material such as vinyl chloride. The dust suction nozzle 20 is attached to the suction hole 3 of the dust suction machine 10 and has a function of efficiently sucking up dust by applying the tip of the nozzle to a location where dust is to be sucked. have.

  The air spray 30 is a spray that ejects compressed air and is attached to the air injection hole 1 of the dust sucker 10 to inject air vigorously.

  FIG. 4 is an exploded perspective view showing the configuration of the centrifuge 40. Referring to FIGS. 4A to 4D, the centrifuge 40 is made of a material such as plastic and has a function of centrifuging air containing dust and accumulating only the dust. A cyclone tower 43 for injecting air from an air injection hole 44 provided in a tangential direction of the cylindrical housing to generate a swirling airflow, and a funnel 45 for accelerating the speed of the swirling airflow as the conical shape diameter decreases. The dust cup 46 is configured to centrifuge the dust contained in the air and accumulate the dust, and the lid 41 having the exhaust hole 42 for discharging the dust and the centrifuged air.

  Next, the operation of the best mode for carrying out the present invention will be described with reference to the drawings. Fig.5 (a)-the same figure (c) are the figures explaining operation | movement of this centrifuge. Moreover, FIG. 6 is a figure explaining the flow of operation | movement of a present Example.

  Referring to FIGS. 1, 2, 3, 5, and 6, in the present embodiment, first, the tip of dust suction nozzle 20 is applied to a location where dust is desired to be sucked, and from the outlet of air spray 30, Air is vigorously injected into the air injection hole 1 of the dust sucker 10 (step 1).

  Then, the dust sucker 10 discharges air from the thin injection pipe 2 through the exhaust pipe 6 through the exhaust pipe 7 so as not to reduce the momentum of the air injected from the air injection hole 1. A fast air flow is generated (step 2).

  The centrifugal separator 40 takes the air exhausted from the exhaust hole 7 into the air injection hole 44 through the connection tube 50 in the tangential direction of the cylindrical housing, thereby generating a swirling airflow inside the cyclone tower 43. By using the conical shape of the funnel 45, the swirling airflow is accelerated as the diameter thereof decreases, and the exhaust air is discharged from the exhaust hole 42 via the intake hole 47, whereby the exhaust pipe 6 of the dust sucker 10. The fast air flow inside is further accelerated (step 3).

  From the Bernoulli's theorem, the dust sucker 10 reduces the air pressure in the exhaust pipe 6 by the air pressure in the intake pipe 4 and creates an air pressure difference near the joint between the intake pipe 4 and the exhaust pipe 6. By causing the air in the pipe 4 to flow in the direction of the exhaust pipe 6, a flow of air from the intake hole 3 toward the intake pipe 4 is generated, and as a result, air is sucked in vigorously from the intake hole 3 (step 4).

  Here, the reason why the air pressure of the exhaust pipe 6 changes will be described by an equation based on Bernoulli's theorem.

ρgh + (1/2) ρυ ² + P = constant where ρ is fluid density, g is gravitational acceleration, h is height, υ is fluid velocity, and P is pressure. According to the above equation, ρgh is potential energy, (1/2) ρυ ² is kinetic energy, and the sum of “positional energy”, “kinetic energy” and “pressure” of air is always constant. Show.

  When this equation is applied to this embodiment, as shown in FIG. 3, in this embodiment, in this embodiment, an injection pipe 2 into which air from the air injection hole 1 is injected, and an intake pipe that sucks external dust from the suction hole 3. 4 and the exhaust pipe 6 that communicates the sucked and sucked dust with the injection pipe 2 and the intake pipe 4 and communicates with the air, the inner diameter of the injection pipe 2 is the inner diameter of the intake pipe 4 and the exhaust pipe 6. Therefore, if a fast air flow is generated inside the exhaust pipe 6, the kinetic energy increases, and the potential energy and pressure decrease in inverse proportion to this.

  On the other hand, since the air inside the intake pipe 4 does not flow in contact with the atmospheric pressure, the kinetic energy is small and the potential energy and pressure are large. Accordingly, an air pressure difference is generated in the pipe joint portion 5, and air flows from the intake pipe 4 to the exhaust pipe 6.

  Following the operation in step 4, the dust suction nozzle 20 sucks dust by the suction force of the dust sucker 10 and sends the dust to the suction hole 3. The dust sucker 10 sucks dust from the suction hole 3 and discharges air containing dust from the discharge hole 7 via the intake pipe 4 and the exhaust pipe 6 (step 5).

  As shown in FIG. 5A, the centrifuge 40 takes air containing dust exhausted from the exhaust hole 7 into the air injection hole 44 through the connection tube 50 in the tangential direction of the cylindrical housing. Thus, a swirling airflow is generated inside the cyclone tower 43 (step 6).

  Next, as shown in FIG. 5 (b), the funnel 45 uses a conical shape to accelerate the swirling airflow as the diameter decreases, and the dust cup 46 generates dust by a strong centrifugal force. And air are separated (step 7).

  Then, as shown in FIG. 5C, the separated dust is swung along the wall of the dust cup 46 and accumulated at the bottom of the dust cup 46 due to its mass, and the other air is accumulated in the center of the dust cup 46. The air is exhausted from the exhaust hole 42 through the suction hole 47 while the part is swirled (step 8).

  If this operation is repeated and dust is collected up to about one third of the dust cup 46, it can be discharged and sucked up.

  Since the dust suction device of the present invention does not use a power source, it does not choose a place and is easy to carry. Moreover, since this apparatus isolate | separates the sucked air and garbage by the cyclone effect, the sucking capacity does not decrease.

It is a general-view figure which shows one embodiment of this invention. It is a perspective view which shows the dust sucker of FIG. It is sectional drawing which shows the dust sucker of FIG. It is a disassembled perspective view which shows the structure of the centrifuge of FIG. It is a figure explaining the operating principle of the centrifuge of FIG. It is a figure explaining the flow of operation | movement of this embodiment. It is a general-view figure which shows an example of the past.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air injection hole 2 Injection pipe 3 Intake hole 4 Intake pipe 5 Pipe junction part 6 Exhaust pipe 7 Exhaust hole 10,70 Dust suction machine 20,72 Dust suction nozzle 30,71 Air spray 40 Centrifugal machine 41 Cover

42 exhaust hole 43 cyclone tower 44 air injection hole 45 funnel 46 dust cup 47 suction hole 50 connection tube 60 joint 73 dust bag 74 clip

Claims (6)

An air flow generating means for generating an air flow, a dust sucking means for sucking dust with a pressure difference generated by the air flow, and a dust collecting means for collecting the dust sucked by the dust sucking means Garbage suction device. 2. The dust suction device according to claim 1, wherein the air flow generating means is an air spray for storing compressed air. The dust sucking means includes an injection pipe for injecting air from the air flow generating means, a dust suction pipe for sucking dust, and the dust sucked in communication with the injection pipe and the suction pipe together with the air. The dust suction device according to claim 1, further comprising an exhaust pipe for discharging. The dust suction device according to claim 3, wherein an inner diameter of the injection pipe is smaller than an inner diameter of the intake pipe and the exhaust pipe at a pipe joint portion where the injection pipe communicates with the intake pipe and the exhaust pipe. apparatus. The dust collecting device according to claim 1, wherein the dust collecting means separates dust and air by turning the exhaust gas discharged from the discharge pipe into a swirling airflow. The dust collecting means includes a cyclone tower section for injecting air from a tangential direction of a cylindrical housing to generate a swirling airflow, a funnel section for accelerating the speed of the swirling airflow as the conical shape diameter decreases, and the air The dust suction device according to claim 1, further comprising a dust cup for centrifuging the dust contained in the container and accumulating the dust.

Images