TWI857920B - Dust blowing nozzle - Google Patents

Abstract

A dust blowing nozzle is provided, comprising a connecting tube and a working tube. The connecting tube is adapted for connecting and communicating with a pipe. The hardness of the working tube is less than that of the connecting tube. The working tube is connected to the connecting tube and includes a pipeline and at least one first air hole. The pipeline penetrates one side of the working tube to form a communication port, which communicates with the interior of the connecting tube. The pipeline does not penetrate the other side of the working tube, thereby forming a closed side. The at least one first air hole communicates the pipeline with the outside and extends along the radial direction of the pipeline away from the closed side.

Description

Dust Blower

The present invention relates to a cleaning device, in particular to a dust blowing nozzle.

In daily life, when cleaning objects or environments, most of them are done with liquids, which remove dirt and achieve the purpose of cleaning. However, when cleaning with liquids, you need to wait for the objects or environments to dry up. Otherwise, the objects or environments with liquids will be more likely to adhere to dirt or breed bacteria and mold. Obviously, the method of using liquids for cleaning cannot be fully applied to various objects or environments, such as air purifier filters, gas pipelines, etc.

Therefore, in the field of cleaning technology, there is another cleaning method that uses a spray gun to clean the object to be cleaned. However, the nozzle of the spray gun is axially opened. When the nozzle is inserted into the interior of the object to be cleaned, the airflow generated by the nozzle of the spray gun cannot accurately clean the side wall surface. Therefore, it is necessary to provide a novel and advanced dust blowing nozzle to solve the above problem.

The main purpose of the present invention is to provide a dust blowing nozzle, the working tube of which can be inserted into the interior of the object to be cleaned and bend and deform accordingly with the shape of the interior thereof, and at the same time cooperate with the first air hole extending obliquely toward the side away from the closure, so that the dirt can be effectively removed from the interior of the object to be cleaned through the airflow.

To achieve the above-mentioned purpose, the present invention provides a dust blowing nozzle, including a set of connecting pipes and a working pipe. The set of connecting pipes is connected to the pipe body. The working pipe can be inserted into the interior of the object to be cleaned. The hardness of the working pipe is less than that of the set of connecting pipes. The working pipe is connected to the set of connecting pipes. The working pipe includes a pipe and at least one first air hole. The pipe passes through one side of the working pipe to form a connecting port. The connecting port connects to the interior of the set of connecting pipes. The pipe does not pass through the other side of the working pipe, so that the other side of the working pipe forms a closed side. The at least one first air hole connects the pipe with the outside. The at least one first air hole extends along the radial direction of the pipe and away from the closed side; wherein the outer contour of the working pipe is elliptical.

The following examples are only used to illustrate possible implementations of the present invention, but they are not intended to limit the scope of protection of the present invention. The "one" or "at least one" before the terms mentioned in the text does not limit the quantity. It can also be "plural" according to needs. This change in quantity is also within the scope of protection, which should be explained first.

Please refer to Figures 1 to 6, which show the first embodiment of the present invention. The dust blowing nozzle of the present invention includes a set of connecting pipe parts 1 and a working pipe part 2.

The connecting pipe part 1 is connected to the pipe body to receive and guide the gas. The working pipe part 2 is inserted into the interior of the object to be cleaned (such as a filter barrel, a pipe body, etc.). The hardness of the working pipe part 2 is less than that of the connecting pipe part 1, so that the working pipe part 2 can bend and deform accordingly with the internal structure of the object to be cleaned, so as to penetrate deeply into the interior.

In more detail, the working pipe part 2 is connected to the connecting pipe part 1, and the working pipe part 2 includes a pipe 21 and at least one first air hole 24. The pipe 21 passes through one side of the working pipe part 2 to form a connecting port 22, and the connecting port 22 is connected to the inside of the connecting pipe part 1. The pipe 21 does not pass through the other side of the working pipe part 2, so that the other side of the working pipe part 2 forms a closed side 23. The at least one first air hole 24 connects the pipe 21 with the outside world, and the at least one first air hole 24 extends along the radial direction of the pipe 21 and away from the closed side 23.

In more detail, the working tube 2 is a straight tube, and in the axial direction of the pipeline 21, the length of the working tube 2 is greater than the length of the assembly tube 1, so that there is a sufficient length for extending into the interior of the object to be cleaned. In addition, the outer contour of the working tube 2 is elliptical. When the working tube 2 is inserted into the interior of the object to be cleaned, the working tube 2 can lean against the inner wall of the object to be cleaned, so that a gap of different sizes is formed between the outer contour of the working tube 2 and the interior of the object to be cleaned for gas flow. In addition, the number of the at least one first air hole 24 is plural, and the plural first air holes 24 are located on two opposite sides of the long axis of the ellipse, so that the ejected air flow can clean the two opposite sides and different depths of the object to be cleaned at the same time; wherein, since the long axis of the ellipse is easier to lean against the inner wall of the object to be cleaned, the plural first air holes 24 can be closer to the inner wall of the object to be cleaned, so that the gas can have a stronger flow rate and impact to flush away the dirt adhering to the inner wall of the object to be cleaned.

It is worth mentioning that the extension direction of each first air hole 24 and the axial direction of the pipe 21 are arranged at an inclination angle 51, and the inclination angle 51 is between 15 degrees and 85 degrees, so that the ejected gas forms a directional airflow (towards the outlet of the object to be cleaned) to smoothly, continuously and quickly carry away the dirt.

The dust blowing nozzle further includes at least one identification unit 3, which is disposed on at least one of the assembly pipe portion 1 and the working pipe portion 2, and the at least one identification unit 3 is used by the user to identify the positions of the plurality of first air holes 24. In this embodiment, the number of the at least one identification unit 3 is two, and the two identification units 3 are located on opposite sides of the short axis of the ellipse in the axial direction of the pipe 21 and do not correspond to the first air holes 24.

The outer surface of the pipe section 1 is provided with an anti-slip structure 4 to enhance the stability of holding.

Preferably, the working tube 2 and the set of connecting tubes 1 are inseparably combined to form a single component to prevent loosening during actual operation. In this embodiment, the working tube 2 and the set of connecting tubes 1 are made of plastic, and the working tube 2 and the set of connecting tubes 1 are mutually sleeved and combined into one body by ultrasonic welding.

Another preferred embodiment is that the working pipe part 2 and the connecting pipe part 1 are inserted and combined with each other along a plug-in direction 6, one of the working pipe part 2 and the connecting pipe part 1 is provided with at least one first rib 26, and the other is provided with at least one first groove 11, the at least one first rib 26 and the at least one first groove 11 are mutually embedded, and the at least one first rib 26 extends along the plug-in direction 6, and the at least one first rib 26 can effectively resist the connecting pipe part 1 from rotating relative to the working pipe part 2. In this embodiment, the number of the at least one first rib 26 is one, and the first rib 26 is located on one side of the long axis of the ellipse in the axial direction of the pipe 21 and on the same side as the first air hole 24.

Preferably, one of the working tube 2 and the connecting tube 1 is provided with at least one second rib 27, and the other is provided with at least one second groove 12. The at least one second rib 27 and the at least one second groove 12 are mutually engaged. The at least one second rib 27 extends circumferentially along the plugging direction 6. The at least one second rib 27 can effectively resist the axial movement of the connecting tube 1 relative to the working tube 2 along the pipe 21. In this embodiment, the number of the at least one second rib 27 is one, and the second rib 27 is located on one side of the short axis of the ellipse in the axial direction of the pipe 21 and on the same side as the identification unit 3.

The working tube 2 further includes at least one second air hole 25, which is connected to the pipe 21 and extends along the radial direction of the pipe 21 and close to the closed side 23. In other words, the at least one second air hole 25 and the first air hole 24 extend in opposite directions, so that the gas ejected from the at least one second air hole 25 can clean the part in a different direction from the first air hole 24. In this embodiment, the number of the at least one second air hole 25 is plural, and the plural second air holes 25 are located on opposite sides of the long axis of the ellipse, and each second air hole 25 is closer to the closed side 23 than each first air hole 24.

The extension direction of each first air hole 24 and the radial direction of the pipe 21 are sandwiched at a first angle 52, and the extension direction of each second air hole 25 and the radial direction of the pipe 21 are sandwiched at a second angle 53. The sum of the first angle 52 and the second angle 53 is preferably less than 90 degrees to ensure that the airflow will impact the inner wall of the object to be cleaned between the extension direction of the first air hole 24 and the extension direction of the second air hole 25.

It should be added that, as shown in the second embodiment of FIG. 7 , according to different requirements, the working tube 2A may also be provided with only a plurality of first air holes 24A, and the plurality of first air holes 24A are provided on two opposite sides of the working tube 2A.

1: Group takeover department

11: First groove

12: Second groove

2,2A: Work pipe department

21: Pipeline

22: Connecting port

23: Closed side

24,24A: First air hole

25: Second air hole

26: First rib

27: Second rib

3: Identification unit

4: Anti-slip structure

51: Tilt angle

52: First angle

53: Second angle

6: Plug-in direction

Figure 1 is a three-dimensional diagram of the first embodiment of the present invention.

Figure 2 is an exploded view of Figure 1.

Figure 3 is a front view of the working tube in Figure 2.

Figure 4 is the A-A end cross-sectional view of Figure 3.

Figure 5 is a cross-sectional view of the first embodiment of the present invention.

Figure 6 is an enlarged bottom view of Figure 1.

Figure 7 is a cross-sectional view of the second embodiment of the present invention.

1: Group takeover department

2: Work management department

24: First air hole

25: Second air hole

3: Identification unit

4: Anti-slip structure

Claims (10)

A dust blowing nozzle includes: a set of connecting parts for mutual connection with a tube body; and a working tube part for being inserted into the interior of an object to be cleaned, having a hardness less than that of the set of connecting parts so as to bend and deform correspondingly with the change of the internal structure of the object to be cleaned, connected to the set of connecting parts, including a pipe and at least one first air hole, the pipe passes through one side of the working tube part to form a connecting port, the connecting port connects to the interior of the set of connecting parts, the pipe does not pass through the other side of the working tube part, so that the other side of the working tube part forms a closed side, the at least one first air hole connects the pipe with the outside, and the at least one first air hole extends along the radial direction of the pipe and away from the closed side; wherein the outer contour of the working tube part is elliptical. The dust blowing nozzle as described in claim 1, wherein the extension direction of the at least one first air hole and the axial direction of the pipe are provided with an inclination angle, and the inclination angle is between 15 degrees and 85 degrees. A dust blowing nozzle as described in claim 1, wherein the working pipe portion and the connecting pipe portion are inseparably combined. The dust blowing nozzle as described in claim 1, wherein the number of the at least one first air hole is plural, and the plural first air holes are located on two opposite sides of the long axis of the ellipse. The dust blowing nozzle as described in claim 1 further comprises at least one identification unit, which is disposed on at least one of the connecting pipe portion and the working pipe portion, and the at least one identification unit is used by a user to identify the position of the at least one first air hole. The dust blowing nozzle as described in claim 1, wherein the working tube portion and the group tube portion are plugged together along a plugging direction, one of the working tube portion and the group tube portion is provided with at least one first rib, and the other is provided with at least one first groove, the at least one first rib and the at least one first groove are mutually engaged, and the at least one first rib extends along the plugging direction. The dust blowing nozzle as described in claim 1, wherein the working tube portion and the connecting tube portion are connected to each other by plugging along a plugging direction, one of the working tube portion and the connecting tube portion is provided with at least one second rib, and the other is provided with at least one second groove, the at least one second rib and the at least one second groove are mutually engaged, and the at least one second rib extends circumferentially along the plugging direction. A dust blowing nozzle as described in any one of claims 1 to 7, wherein the working tube portion further comprises at least one second air hole, the at least one second air hole is connected to the pipeline, and the at least one second air hole extends along the radial direction of the pipeline and close to the closed side. The dust blowing nozzle as described in claim 8, wherein the extension direction of the at least one first air hole and the radial direction of the pipe are provided with a first angle, the extension direction of the at least one second air hole and the radial direction of the pipe are provided with a second angle, and the sum of the first angle and the second angle is less than 90 degrees. A dust blower as described in claim 2, wherein the working tube portion and the group connecting portion are inseparably combined; the number of the at least one first air hole is plural, and the plural first air holes are located on two opposite sides of the long axis of the ellipse; the dust blower further includes at least one identification unit, which is provided in at least one of the group connecting portion and the working tube portion, and the at least one identification unit is used by a user to identify the position of the at least one first air hole; the working tube portion and the group connecting portion are plugged together along a plug-in direction, and one of the working tube portion and the group connecting portion is provided with at least one first rib, The other is provided with at least one first groove, the at least one first rib is engaged with the at least one first groove, and the at least one first rib extends along the plugging direction; one of the working pipe part and the assembly pipe part is provided with at least one second rib, and the other is provided with at least one second groove, the at least one second rib is engaged with the at least one second groove, and the at least one second rib extends along the circumferential direction of the plugging direction; the working pipe part further includes at least one second air hole, the at least one second air hole is connected to the pipeline, and the at least one second air hole extends along the radial direction of the pipeline and close to the closed side; the The extension direction of at least one first air hole and the radial direction of the pipe are provided with a first angle, the extension direction of at least one second air hole and the radial direction of the pipe are provided with a second angle, and the sum of the first angle and the second angle is less than 90 degrees; the material of the working tube part and the group connecting part is plastic; the working tube part and the group connecting part are mutually sleeved and combined into one body by ultrasonic welding; the number of the at least one second air hole is plural, and the plural second air holes are located on two opposite sides of the long axis of the ellipse; each of the second air holes is closer to the closed side than each of the first air holes; the number of the at least one identification unit is There are two, and the two identification units are located on two opposite sides of the short axis of the ellipse in the axial direction of the pipeline and do not correspond to the first air hole; the number of the at least one first rib is one, and the first rib is located on one side of the long axis of the ellipse in the axial direction of the pipeline and on the same side as the first air hole; the number of the at least one second rib is one, and the second rib is located on one side of the short axis of the ellipse in the axial direction of the pipeline and on the same side as the identification unit; the working pipe part is a straight pipe, and the length of the working pipe part in the axial direction of the pipeline is greater than the length of the group of connecting pipe parts; the outer surface of the group of connecting pipe parts is further provided with an anti-slip structure.

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