KR20190058167A - Blower apparatus - Google Patents

Abstract

According to an embodiment of the present invention, a blowing apparatus comprises: a main body having an inner space formed therein; an air pump arranged in the main body and blowing the air; a blowing pipe connected to an upper surface of the main body from the air pump; a spraying apparatus connected to the spraying pipe connected to the upper surface of the main body to spray the air onto the outside; a support installed on one side of the main body and supporting a part of the spraying apparatus; and a muffler installed to cover the circumference of the blowing pipe.

Description

{BLOWER APPARATUS}

The following description relates to a blower.

A blower is a device that blows wind to the outside through a pump that generates wind. In the case of using a blowing device, generally, a user has directly used a part of the blowing device to grasp a part of the blowing device to blow wind in a desired direction and position.

However, in the case of continuously grasping the blower, it is difficult for the user to perform other operations at the same time, and in particular, when the blower is large in size, it is difficult for the user to grasp the blower continuously.

Accordingly, there is a need for a device capable of freely moving the blower device to a desired position, and freely fixing the blower device as needed.

On the other hand, since the fan unit is operated by receiving a driving force through a motor provided therein, vibration and noise are generated due to the rotational force of the motor.

In particular, vibrations and noises can be transmitted through the pipe or duct through which the air flows, which can adversely affect the mechanical parts inside the blower, and the user may be exposed to noise.

Therefore, there is a need for a device that can reduce the noise generation of the motor and effectively dampen the noise propagated along the air flow tube, within the fan unit.

The background art described above is possessed or acquired by the inventor in the derivation process of the present invention, and can not be said to be a known art disclosed in general public before application of the present invention.

An object of one embodiment is to provide a blower.

According to an embodiment of the present invention, there is provided an air blowing apparatus comprising: a body having an internal space formed therein; An air pump disposed inside the main body and capable of blowing air; A blowing pipe connected from the air pump to an upper surface of the main body; A spray device connected to the blowing pipe connected to the upper surface of the main body and capable of spraying air to the outside; A mount installed on one side of the main body and capable of mounting a part of the injection device; And a muffler installed to surround the blowing pipe.

Wherein the injection device comprises a pivot pipe having one end connected to the blowing pipe from the upper side of the main body and the other end bent to extend downward from the one end; A corrugated pipe connected to the pivot pipe and capable of being bent; And a blowing head having one end connected to the bellows pipe and the other end blowing out the wind to the outside.

The injection device may further include a rotation coupler installed at least one between the bellows pipes and configured to rotate about an axis along the longitudinal direction of the bellows pipe, And the blowing head can rotate about an axis along the longitudinal direction of the bellows pipe with respect to the bellows pipe.

The cradle includes: a first link rotatably installed at one side of the main body, about an axis along the longitudinal direction; A second link capable of sliding with respect to the first link; A third link rotatably installed on the second link; And a support portion provided at one side of the third link and capable of supporting the blowing head.

The cradle comprising: a first adjusting screw capable of preventing rotation of the first link relative to the body; A second adjusting screw capable of preventing sliding of the second link with respect to the first link; And a third adjustment screw capable of preventing rotation of the third link relative to the second link.

The supporting part may include a fixing device hinged to one side of the supporting part and fixed to the other side of the supporting part by rotating to surround the circumference of the blowing head.

The end portion of the support portion is curved, and a curved portion of the blowing head can be engaged with the curved end portion of the support portion.

The blowing head may include a protruding portion protruding downward from a curved portion of the blowing head, and the protruding portion may be supported by an edge of the supporting portion when the blowing head is engaged with the supporting portion.

The muffler includes a case having an inner space; A sound wave inflow hole formed to cross the case; An inlet formed on a circumferential surface of the sound wave inflow hole; And a passage communicating with the inlet and having a shape in which the cross-sectional area becomes gradually narrower along the inner space.

The passage may be branched into at least two or more paths from the inlet.

The passage may be formed in a plurality, and at least a part of the plurality of passages may communicate with each other.

The direction of the passage may be configured in a circumferential direction of the sound wave inlet hole and a radial direction of the sound wave inlet hole.

The passage can be made to have a smaller cross-sectional area as it gets farther from the inlet in the radial direction of the sound wave inflow hole.

The case includes a first separator including a first plate defining one surface of the silencer and a plurality of first partition walls for forming the passage; And a second separator including a second plate for forming the other surface of the silencer and a plurality of second partitions for forming the passage, and the passage may include a first separator and a second separator, The first barrier ribs may be formed between at least a part of the plurality of second barrier ribs adjacent to each other and at least a part of the first barrier ribs.

The passage may include an outer passage formed along an outer edge of the case, and the first separator may include a plurality of first openings extending in the outer direction of the first separator along a rim of the first plate, And the second separator may include a first outer wall protruding along a rim of the second plate to form a rim surface of the second separator; And a plurality of second protrusions protruding from the outer wall along the outer wall in an inward direction of the second separator, wherein when the first separator and the second separator are combined, The outer protrusions and the second outer protrusions may be coupled to each other to form the outer passage.

The first outer protrusion may further include a first detour portion connected to an end of the first outer protrusion in a direction perpendicular to the first outer protrusion, And the first detour and the second detour may be coupled to each other in a direction perpendicular to the second protrusion, and when the first detour and the second detour are fastened to each other, And may be located outside the second bypass portion with respect to the inlet hole.

The case may further include a third separator, and the third separator may include a third plate; A third partition formed on one surface of the third plate and forming a passage with the second partition; And a fourth partition formed on the other surface of the third plate and forming a passage with the first partition, the shape of the third partition is the same as the shape of the first partition, The shape is the same as the shape of the second bank, and the third separator can be fastened between the first separator and the second separator.

The third separator may be disposed in a plurality of layers between the first separator and the second separator.

According to the blowing apparatus of one embodiment, it is possible to freely change the position and posture of the blowing head while the user grasps the blowing head.

According to one embodiment of the present invention, the position of the support portion can be freely moved to a position desired by the user, and the support portion can be fixed at a position desired by the user by locking the adjustment screw.

According to the embodiment of the present invention, since the blowing head can be fixed at a desired angle and position, it is possible to spray the wind by fixing the spraying device in a desired direction without directly grasping it.

The muffler according to one embodiment can be mounted around the blowing pipe through the sound wave inflow hole formed in a hollow shape, so that the noise transmitted through the blowing pipe can be reduced.

The muffler according to one embodiment includes a passage whose inner cross-sectional area gradually decreases, thereby effectively blocking or attenuating a sound wave.

1 is a view showing a blower according to an embodiment.
2 is a view of an injection device according to one embodiment.
Figure 3 is a view of a cradle according to one embodiment.
FIG. 4 is a view showing a state in which a spray device is installed in a cradle according to an embodiment.
5 is a perspective view illustrating a blower and a muffler according to an embodiment of the present invention.
6 is a perspective view of a silencer according to one embodiment.
7 is a perspective view of a muffler according to an embodiment.
8 is an exploded perspective view of a silencer according to an embodiment.
9 is a cross-sectional view of a muffler according to an embodiment cut along the section II shown in FIG.
10 is a cross-sectional view of the first separator according to an embodiment.
11 is a cross-sectional view of a second separator according to an embodiment.
12 is a perspective view of a muffler according to an embodiment.
13A is an exploded perspective view of a muffler according to an embodiment.
13B is an exploded perspective view of the muffler according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments, detailed description of known functions and configurations incorporated herein will be omitted when it may make the best of an understanding clear.

In describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be " connected, " " coupled, " or " connected. &Quot;

The components included in any one embodiment and the components including common functions will be described using the same names in other embodiments. Unless otherwise stated, the description of any one embodiment may be applied to other embodiments, and a detailed description thereof will be omitted in the overlapping scope.

FIG. 1 is a view showing a blowing device according to an embodiment, FIG. 2 is a view showing an injection device according to an embodiment, FIG. 3 is a view showing a cradle according to an embodiment, FIG. 5 is a perspective view illustrating a blower and a muffler according to an embodiment of the present invention. FIG.

1 to 5, a blowing device 4 of an embodiment includes a main body 41, an air pump 44, a blowing pipe 45, a heating device 46, a silencer 1, a spray device 42, A cradle 43, an input unit 48, and a control unit 47.

The main body 41 may be a case-like member having an internal space. For example, an air pump 44, a blowing pipe 45, and a heating device 46, which will be described later, may be disposed in the internal space of the main body 41. For example, a plurality of wheels may be formed on the lower side of the main body 41 so that the main body 41 can move relative to the ground.

The air pump 44 may be a pump that generates wind using the rotational force of the motor. For example, the wind generated by the air pump 44 can be transferred to the outside through the blowing pipe 45.

The air blowing pipe 45 may be a pipe connected to the air pump 44 and fed by the air discharged from the air pump 44. For example, one end of the blowing pipe 45 may be connected to the air pump 44, and the other end may be connected to the upper surface of the main body 41.

The heating device 46 may be a device for heating the wind conveyed through the blowing pipe 45. For example, the warming device 46 can heat the ambient air using a resistor through which electricity flows. For example, the heating device 46 may be installed around the blowing pipe 45 or inside the blowing pipe 45.

The muffler 1 may be formed so as to surround the periphery of the blowing pipe 45 inside the main body 41. The muffler 1 can reduce the noise generated when the air pump 44 is driven to be transmitted along the blower pipe 45. [ The detailed configuration of the silencer 1 will be described later with reference to Figs. 7 to 13B.

The spraying device 42 is connected to the blowing pipe 45 from the outside of the main body 41 and can blow wind to the outside. For example, the injector 42 may include a pivot tube 421, a bell tube 422, a rotating coupler 424, and a blower head 423.

The pivot pipe 421 may be connected to a blowing pipe 45 communicated with the upper surface of the main body 41 and extend to the outside of the main body 41. For example, the pivot pipe 421 can be connected to the blowing pipe 45 from one side of the main body 41 at one end, and can be curved downward from the other end at one end thereof. For example, the pivot pipe 421 ) May have a " U " shape.

For example, the pivot tube 421 may be installed to rotate on the upper surface of the main body 41. For example, the pivot pipe 421 may be installed such that one end connected to the upper surface of the main body 41 rotates in a direction parallel to the paper surface, and the other end of the pivot pipe 421 is pivotally moved Can be performed.

The corrugated pipe 422 may be a tubular member connected to the other projecting end of the pivot pipe 421. For example, the corrugated pipe 422 may have a plurality of corrugations along the longitudinal direction of the corrugated pipe 422, thereby allowing the corrugated pipe 422 to flex.

The rotary coupler 424 may be a connecting member which is installed between the corrugated pipes 422 and allows the outer peripheral portion to rotate about an axis along the longitudinal direction of the corrugated pipe 422.

For example, the rotary coupler 424 may be installed in at least one section between the corrugated pipes 422, and may be provided in a plurality of sections.

The blowing head 423 is installed at the end of the bending pipe 422 protruding from the pivot pipe 421 and can blow wind to the outside. For example, the blowing head 423 may be formed in a curved shape.

For example, the blowing head 423 has a plurality of protrusions formed on the outer surface thereof so as to be easily gripped by the hand.

For example, the blowing head 423 may include an injection nozzle 4231 and a protrusion 4232.

The injection nozzle 4231 is installed at the end of the blowing head 423 and can blow wind. For example, the cross-sectional area of the injection nozzle 4231 may have a shape that decreases with the advancing direction of the wind.

For example, the injection nozzle 4231 can be installed so that the outer peripheral portion rotates at the distal end of the blowing head 423.

The protrusion 4232 may be a protrusion formed on the outer surface of the blowing head 423. For example, the protruding portion 4232 may protrude from the surface of the blowing head 423 in the direction in which the outer surface of the blowing head 423 is folded, as the blowing head 423 is curved. For example, the protruding portion 4232 can be supported by a support portion 437, which will be described later.

According to the injection device 42, the pivot tube 421 is curved downward, so that the bell pipe 422 can be bent more flexibly than when it is directly connected to the upper surface of the main body 41, Can be behaved.

Since at least one end of each of the pivot tube 421, the rotational coupler 424 and the blowing head 423 is rotatably mounted to the other pipe or the connecting member, the user can grasp the blowing head 423 It is possible to freely change the position and posture of the air blowing head 423 in the air blowing apparatus.

The holder 43 is formed of a plurality of links protruding from the main body 41 to support and fix the blowing head 423.

For example, the cradle 43 includes a first link 431, a first adjusting screw 434, a second link 432, a second adjusting screw 435, a third link 433, A screw 436 and a support 437. As shown in Fig.

The first link 431 may be rotatably installed at one side of the main body 41. For example, the first link 431 may be formed to protrude in a direction perpendicular to the upper surface of the main body 41, and may rotate in a direction parallel to the ground.

The first adjusting screw 434 can prevent the first link 431 from rotating with respect to the main body 41. For example, the first adjusting screw 434 may be installed between the main body 41 and the first link 431, and as the first adjusting screw 434 rotates, at least the first link 431 The first link 431 can be fixed so as not to rotate in such a manner that the first link 431 is partially pressed.

The second link 432 is connected to the first link 431 and can slide in the longitudinal direction with respect to the first link 431. For example, the second link 432 may be accommodated at least partly inside the first link 431 and may slide out from the first link 431 by a user or an external force.

For example, it can slide in the direction perpendicular to the paper from the first link 431 arranged in the direction perpendicular to the paper.

The second adjusting screw 435 can prevent the second link 432 from sliding with respect to the first link 431. For example, a second adjusting screw 435 may be provided between the first link 431 and the second link 432, and as the second adjusting screw 435 rotates, the second link 432, The second link 432 can be prevented from sliding with respect to the first link 431 in such a manner as to press at least a part of the first link 431. [

The third link 433 may be connected to the second link 432 and be rotatably installed with respect to the second link 432. For example, the third link 433 may be hinged to one side of the second link 432.

For example, the rotational axis of the hinge combination of the second link 432 and the third link 433 may be parallel to the ground. Accordingly, the third link 433 can be connected to the second link 432 to perform an operation of tilting up and down.

The third adjusting screw 436 can prevent the third link 433 from rotating with respect to the second link 432. For example, the third adjusting screw 436 may be installed between the second link 432 and the third link 433, and as the third adjusting screw 436 rotates, the third link 433, The third link 433 can be prevented from rotating relative to the second link 432 in such a manner as to press at least a part of the second link 432.

The support portion 437 can be installed on one side of the third link 433 to support the blowing head 423. For example, the supporting portion 437 may have a shape of a part of a circular cross section in contact with the blowing head 423 so as to support the lower side of the blowing head 423 having a circular cross section.

For example, one end of the support portion 437, that is, an end protruding from the third link 433, may be curved downward. According to this structure, as the curved portion of the air blowing head 423 is combined with the curved one end of the supporting portion 437, the air blowing head 423 can be separated from the supporting portion 437 by gravity or an external force .

The projecting portion 4232 of the blowing head 423 can be extended to one end of the support portion 437, that is, the edge portion of the end projecting from the third link 433. [ According to the protruding portion 4232, it is possible to prevent the blowing head 423 from being separated from the support portion 437 due to gravity or external force.

For example, the supporting portion 437 may include a fixing device 4371 and a fixing groove 4372. [

The fixing device 4371 is hinged to one side of the support portion 437 and can rotate. For example, when the air blowing head 423 is coupled to the support portion 437, the fixing device 4371 can cover at least a part of the blowing head 423 by rotating.

For example, after the fixing device 4371 is rotated so as to cover the blowing head 423, a part of the fixing device 4371 may be coupled and fixed to the fixing groove 4372 formed on the other side of the supporting portion 437 have.

The fixing groove 4372 can be a groove formed on the other side of the supporting portion 437 and is a part of the fixing device 4371, for example, a protruded end portion, as described above. For example, one end of the fixing device 4371 can be fitted to the fixing groove 4372.

According to the fixing device 4371, since the fixing device 4371 can rotate so as to cover the periphery of the support portion 437 in a state where the blowing head 423 is coupled to the supporting portion 437, And can be gripped from the entire circumference by the support portion 437. [ Accordingly, the blowing head 423 can be prevented from being detached from the support portion 437. [

According to the first link 431, the second link 432 and the third link 433 and the support portion 437, a portion of the third link 433 including the support portion 437 is provided to the body 41 So that the position of the support portion 437 can be freely moved to a desired position by the user and the first to third adjustment screws 434, 435 and 436 can be locked to secure the support portion 437 at a desired position, Can be fixed.

Since the support portion 437 can fix the blowing head 423 at a desired angle and position, it is possible to spray the wind by fixing the injection device 42 in a desired direction without directly grasping it.

The input unit 48 can be operated by the user to generate an input signal. For example, the user can input the desired operation speed of the air pump 44 and the degree of heating of the heating device 46 through the input unit 48, and the input signal may be transmitted to the control unit 47.

For example, the input unit 48 may be formed to be exposed on the outer surface of the main body 41. [ For example, the input unit 48 may include an operation device such as a button panel, a dial, a touch screen, and a lever formed on the outer surface of the main body 41.

The control unit 47 can control the operation of the air blowing device 4. [ For example, the control unit 47 can adjust the speed of the air pump 44. For example, the control unit 47 can adjust the amount of heating of the heating device 46.

For example, the control unit 47 can adjust the operating intensity of the air pump 44 and the heating device 46 through the input signal input through the input unit 48, And the temperature of the wind can be controlled.

6 is a perspective view of a silencer according to one embodiment.

Referring to FIG. 6, the silencer 1 installed in the blowing pipe 45 can be identified.

For example, the muffler 1 may be installed so as to surround the blowing pipe 45 in a section of the blowing pipe 45 connected from the air pump 44. The silencer 1 can reduce the noise generated in the injector 42 transmitted along the blower pipe 45. [

For example, the silencer 1 may be provided in plurality along the blowing pipe 45, and the silencer 2 of the laminated structure may be provided as shown in Figs. 12 to 13b to be described later.

FIG. 7 is a perspective view of a muffler according to an embodiment of the present invention, FIG. 8 is an exploded perspective view of a muffler according to an embodiment of the present invention, FIG. 9 is a cross- 10 is a cross-sectional view of a first separator according to an embodiment, and FIG. 11 is a cross-sectional view of a second separator according to an embodiment.

7-11, the silencer 1 according to one embodiment may include a case 17, a sound wave inflow hole 15, an inlet 141, a passage 14 and a fastening hole 16 have.

The case 17 forms the outer shape of the silencer 1 and can have an internal space. For example, the case 17 may have a cylindrical shape as shown in Figs. It is noted, however, that the shape of the case 17 is not limited to a cylindrical shape.

The sound wave inflow hole 15 may be a hole formed in the case 17 so as to cross the case 17. For example, the sound wave inflow hole 15 may be equipped with a blowing pipe 45. For example, noise or sound waves emitted along the circumference of the blowing pipe 45 may be introduced into the interior of the muffler 1. [

For example, the sound wave inflow hole 15 may be constituted of only one case 17 in the case 17 as shown in Fig. 1, but may be composed of two as shown in Figs. 14 and 15, have.

The inlet 141 may be formed on the circumferential surface of the sound wave inlet hole 15. [ For example, the inlet 141 may be formed on the circumferential surface of the sound-wave inlet hole 15, and sound waves generated from the tubular member may be incident through the inlet 141.

For example, the inlet 141 may be formed from the outer wall of the case 17 rather than the sound-wave inlet 15. In this case, the muffler 1 may have various shapes, as well as a draft tube 45 formed of a tubular member. It is possible to receive a sound wave from the acoustic source.

The passage 14 may be formed along the inner space of the case 17 in communication with the inlet 141. For example, the passage 14 may be formed by a plurality of partition walls 111, 121 disposed in the inner space. For example, the passage 14 may have a shape in which the cross-sectional area becomes gradually narrower along the inner space. In addition, the rate of reduction of the cross-sectional area of the passageway 14 may be varied depending on the path of travel of the passageway 14.

According to the above structure, since the cross-sectional area of the passage 14 is reduced, the specific frequency region of the sound waves incident on the passage 14 can be blocked and attenuated according to the principle of the resonator, The reduction rate of the cross-sectional area of the passage 14 can be formed differently for each section of the passage 14, so that the sound waves in the wide frequency band can be attenuated.

For example, the passageway 14 may be folded several times along the path of travel. In addition, the passageway 14 may be branched into two or more paths along the path of travel

According to the above structure, since the path 14 is bent and formed several times, the propagation path of the sound wave is lengthened so that the amplitude of the sound wave can be attenuated by the viscous friction in the process in which the sound wave is reflected again.

For example, when the inlet 141 is composed of a plurality of passages, the passages 14 may also be formed along the plurality of passages from the plurality of inlets 141. For example, the passages 14 connected at a plurality of inlets can communicate with each other along the progress path.

For example, the passage 14 may be formed along the circumferential direction and the radial direction of the sound wave inflow hole 15 as shown in Fig. For example, the cross-sectional area of the passage 14 may become smaller as the distance from the sound-wave inflow hole 15 in the radial direction. In other words, the passages 14 formed along the circumferential direction of the sound wave inflow hole 15 have a form laminated outward in the radial direction of the sound wave inflow hole 15, and the circumferential passages 14 have the sound wave inflow hole 15 The cross-sectional area thereof may gradually become smaller as it goes radially outward.

According to the above structure, it is possible to arrange the passages 14 in a compact space in the inner space of the case 17 in accordance with the cylindrical shape of the case 17.

For example, the passageway 14 may be provided with acoustic damping means made of one or more materials of fabric, metal, plastic, fiber, cotton, and wood, and the acoustic damping means may be a sound absorbing material such as foaming material, It may be a plurality of holes formed with holes.

For example, the passage 14 may be formed as a cochlear path from the inlet 141, and may be formed in a cochlier shape that rotates and diverges outward or converges inward. For example, For example, the passage 14 may be formed as a spiral which rotates from the inlet 141 to form a circular path.

The fastening hole 16 may be a hole formed to cross the case 17. For example, the fastening holes 16 may be formed on the case 17 in plurality. For example, a fastening member such as a bolt is inserted into the fastening hole 16 and fastened with a nut, so that the case 17 can be tightly fastened. As described later in Figs. 8 to 11, the case 17 It is possible to prevent the case 17 from being detached.

For example, the muffler 1 may be constructed as a unitary structure of the case 17 and the passage 14, but may be formed as a separate type as shown in Figs. 8 to 11. Fig. In this case, the case 17 may include a first separating portion 11 and a second separating portion 12 which are detachably attachable to each other.

The first separator 11 can be detachably attached to the second separator 12. For example, the first separator 11 may include a first plate 115, a first partition 111, a first outline 112, and a first coupling 114.

The first plate 115 may be one of two facing surfaces of the case 17 and may be, for example, the bottom surface of the case 17 as shown in Fig.

The first partition wall 111 may be a plurality of partition walls protruding from the first plate 115 and may form the passage 14 together with the second partition wall 121 of the second partition portion 12. For example, the first partition 111 may be inserted between two adjacent second partitions 121 of the second separator 12, which will be described later.

The first outer protrusion 112 may be a plurality of protrusions protruding outwardly of the first separator 11 along the rim of the first plate 115. For example, the first outer protrusion 112 may be coupled with a second outer protrusion 122, described below, to form an outer passageway 142 that forms the end of the passageway 14 at the outer portion of the silencer 1 have.

The first outer protrusion 112 may include a first detour portion 1121 connected in the vertical direction at the protruding end portion.

The first coupling part 114 may protrude from the first plate 115 and may be engaged with the second coupling part 124 of the second coupling part 12 to be described later so that the first coupling part 114 And the second separator 12 can be fixed to each other.

The second separator 12 can be detachably attached to the first separator 11. For example, the second separator 12 includes a second plate 125, a second partition 121, a first outer wall 123, a second outer protrusion 122, and a second coupling part 124 can do.

The second plate 125 may be one surface of the case 17 facing the first plate 115.

The second barrier ribs 121 may be a plurality of barrier ribs protruding from the second plate 125. The second barrier rib 121 may form a passage 14 together with the first barrier rib 111. For example, the second barrier rib 121 may be inserted between two adjacent first barrier ribs 111 have.

The first outer wall 123 may protrude along the rim of the second plate 125 to form a rim surface of the second separation portion 12. In other words, the first outer wall 123 can form the outer rim surface of the silencer 1.

The second outer protrusion 122 may be a plurality of protrusions protruding inward of the second separating portion 12 along the first outer wall 123 of the second plate 125. For example, the second outer protrusion 122 may be combined with the first outer protrusion 112 to form the outer channel 142.

According to the first outer protrusion 112 and the second outer protrusion 122, it is possible to guide the fastening of the first separating portion 11 and the second separating portion 12 and to improve the structural stability of the fastening An outer passage 142 communicating with the passage 14 and forming the end of the passage 14 can be formed.

The outer passage 142 may be formed to have a small cross-sectional area among all the sections of the passage 14, thereby effectively attenuating the sound waves incident on the outer passage 142.

The second outer protrusion 122 may include a second detour portion 1221 connected in a vertical direction at the protruding end portion. The cross sectional area of the outer passage 142 can be further reduced and the outer passage 142 can be bent by bending the passage of the outer passage 142. [ The attenuation effect of the incident sound wave can be further improved.

The second fastening part 124 may protrude from the second plate 125 and may be fitted to the first fastening part 114. For example, one of the first fastening part 114 and the second fastening part 124 may have a cylindrical shape having a hollow communicating with the fastening hole 16, and the remaining fastening part 124 may have a cylindrical shape The first fastening part 114 and the second fastening part 124 may be fitted and fixed to each other. According to the above structure, the first separating portion 11 and the second separating portion 12 can be fastened to each other with an accurate position and phase, and any fastening member can be inserted into the fastening hole 16 So that the first separator 11 and the second separator 12 can be firmly fixed to each other.

FIG. 12 is a perspective view of a muffler according to an embodiment of the present invention, and FIG. 13a is an exploded perspective view of a muffler according to an embodiment. 13B is an exploded perspective view of the muffler according to an embodiment.

12 to 13B, the silencer 2 includes a case 27 having a structure in which the cases 17 of FIGS. 7 to 11 are laminated, a sound wave inflow hole 25 to which the tubular member is mounted, and a case 27, And a fastening hole 26 for fastening and fastening the fastening member.

The silencer 2 may include a first separator 11, a second separator 12, and a third separator 13 that can be separated and detachably attached to each other. Here, the first separator 11 and the second separator 12 may have the same configuration as the first separator 11 and the second separator 12 shown in FIGS. 8 to 11. However, the first separator 11 and the second separator 12 may not be directly coupled to each other, and at least one third separator 13 may be connected to the middle.

For example, the third separator 13 may include a third plate 136, a third partition 131, a fourth partition 132, a second outer wall 133, a third outer projection 134, And may include protrusions 135.

The third plate 136 may be a surface located between the first plate 115 and the second plate 125.

The third partition wall 131 may be a plurality of partition walls protruding from one surface of the third plate 136 (for example, upward direction, FIG. 13A), and the second partition wall 121 The passage 14 can be formed. For example, the third barrier ribs 131 may have the same shape and pattern as the first barrier ribs 111.

The fourth partition 132 may be a plurality of partitions protruding from the other surface of the third plate 136 (for example, downward, see FIG. 13B). The first partition 111, The passage 14 can be formed. For example, the fourth barrier ribs 132 may have the same shape as the second barrier ribs 121.

The second outer wall 133 may protrude from the other surface from the third plate 136 and protrude along the rim of the third plate 136.

The third outer protrusion 134 may be a plurality of protrusions protruding outward of the third separator 13 along the rim of one surface (upper surface, FIG. 13A) of the third plate 136. For example, the third outer protrusion 134 may be coupled with the second outer protrusion 122 to form the outer passageway 142. For example, the third outer protrusion 134 may have the same structure as the first outer protrusion 112.

The fourth outer protrusion 135 may be a plurality of protrusions protruding from the second outer wall 133 formed from the other surface of the third plate 136 to the inside of the third separator 13. For example, the fourth outer protrusion 135 may be combined with the first outer protrusion 112 to form the outer passageway 142. For example, the fourth outer protrusion 135 may have the same structure as the second outer protrusion 122.

It is to be understood that the third separator 13 may be constructed such that the first separator 11 and the second separator 12 shown in FIG. have.

According to the third separator 13, it is possible to provide a silencer 2 that is coupled between the first separator 11 and the second separator 12 to form a stacked form, So that the size of the silencer 2 can be extended. For example, the cross section of each layer of the stacked silencer 2 may be the same as in Fig.

According to the above structure, the inner space of the silencer 2 and the passages 14 can be formed in a plurality of layers, and the length of the sound wave inflow hole 25 of the silencer 2 can also be made long, 45), and as a result, the noise can be effectively attenuated.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. For example, it is contemplated that the techniques described may be performed in a different order than the described methods, and / or that components of the described structures, devices, and the like may be combined or combined in other ways than the described methods, Appropriate results can be achieved even if they are replaced or replaced.

Therefore, other implementations, other embodiments and equivalents to the claims are within the scope of the following claims.

Claims (16)

A body having an internal space formed therein;
An air pump disposed inside the main body and capable of blowing air;
A blowing pipe connected from the air pump to an upper surface of the main body;
A spray device connected to the blowing pipe connected to the upper surface of the main body and capable of spraying air to the outside;
A mount installed on one side of the main body and capable of mounting a part of the injection device; And
And a muffler installed to surround the blowing pipe.
The method according to claim 1,
Wherein the injection device comprises:
A pivot pipe having one end connected to the blowing pipe from the upper side of the main body and the other end bent to extend downward from the one end;
A corrugated pipe connected to the pivot pipe and capable of being bent; And
And a blowing head having one end connected to the bellows pipe and the other end blowing out wind to the outside.
3. The method of claim 2,
Wherein the injection device comprises:
Further comprising a rotating coupler installed at least one between the bellows pipes and configured to rotate about an axis along the longitudinal direction of the bellows pipe,
Wherein the pivot tube is rotatable with respect to the upper surface of the main body in a direction parallel to the paper surface,
Wherein the blowing head is rotatable about an axis along the longitudinal direction of the bellows pipe with respect to the bellows pipe.
3. The method of claim 2,
The cradle,
A first link provided at one side of the body so as to be rotatable about an axis along the longitudinal direction;
A second link capable of sliding with respect to the first link;
A third link rotatably installed on the second link; And
And a support portion provided at one side of the third link and capable of supporting the blowing head.
5. The method of claim 4,
The cradle,
A first adjustment screw capable of preventing rotation of the first link relative to the body;
A second adjusting screw capable of preventing sliding of the second link with respect to the first link; And
Further comprising a third adjusting screw capable of preventing rotation of the third link relative to the second link.
5. The method of claim 4,
The support portion
And a fixing device hinged to one side of the support portion and rotated to surround the periphery of the blowing head to be fixed to the other side of the support portion.
5. The method of claim 4,
Wherein the air blowing head is formed to be partially curved,
The end portion of the support portion is curved,
Wherein a curved portion of the blowing head is coupled to cooperate with the curved end of the support.
8. The method of claim 7,
Wherein the blowing head comprises:
And a protruding portion protruding downward from a curved portion of the blowing head,
Wherein the protruding portion is supported by an edge of the supporting portion when the blowing head is engaged with the supporting portion.
The method according to claim 1,
The muffler includes:
A case having an internal space;
A sound wave inflow hole formed to cross the case and through which the blowing pipe passes;
An inlet formed on a circumferential surface of the sound wave inflow hole; And
And a passage communicating with the inlet and having a shape in which the cross-sectional area becomes gradually narrower along the inner space.
10. The method of claim 9,
Wherein the direction of the passage is constituted by a circumferential direction of the sound wave inflow hole and a radial direction of the sound wave inflow hole.
10. The method of claim 9,
Wherein the passage has a smaller cross-sectional area as it moves away from the inlet in the radial direction of the sound wave inflow hole.
10. The method of claim 9,
In this case,
A first separator including a first plate defining one side of the muffler and a plurality of first compartments for forming the passage; And
A second plate defining a second surface of the silencer, and a second separator including a plurality of second septa for forming the passageway,
Wherein the passage is formed between at least a part of the plurality of second partitions adjacent to each other and at least part of the first partitions when the first part and the second part are engaged.
13. The method of claim 12,
Wherein the passage includes an outer passage formed along an outer edge of the case,
Wherein the first separator comprises:
Further comprising a plurality of first protrusions protruding outwardly of the first separator along a rim of the first plate,
Wherein the second separator comprises:
A first outer wall protruding along a rim of the second plate to form a rim surface of the second separator; And
Further comprising a plurality of second protrusions protruding from the outer wall along the outer wall toward an inner side of the second separator,
Wherein when the first separator and the second separator are combined, the plurality of first protrusions and the second protrusions are coupled to each other to form the outer passage.
14. The method of claim 13,
Wherein the first outer protrusion further comprises a first detour portion connected to an end of the first outer protrusion in a direction perpendicular to the first outer protrusion,
The second outer protrusion further includes a second detour at an end of the second outer protrusion, the second detour being connected to the second outer protrusion in a direction perpendicular to the second outer protrusion,
Wherein the first bypass part is located outside the second bypass part with respect to the sound wave inflow hole when the first separation part and the second separation part are fastened to each other.
13. The method of claim 12,
The case further includes a third separator,
The third separator,
A third plate;
A third partition formed on one surface of the third plate and forming a passage with the second partition; And
And a fourth partition formed on the other surface of the third plate and forming a passage with the first partition,
The shape of the third bank is the same as the shape of the first bank, the shape of the fourth bank is the same as the shape of the second bank, and the third separator is formed between the first separator and the second separator A blowing device to be fastened.
16. The method of claim 15,
Wherein the third separator comprises:
Wherein a plurality of the first and second separating units are stacked and arranged between the first separating unit and the second separating unit.

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