KR20220129950A - Vacuum cleaning car - Google Patents

Abstract

The present invention relates to a vacuum cleaning vehicle, and more specifically, to a vacuum cleaning vehicle capable of securing a larger storage tank capacity while maintaining the functions of a cyclone and a silencer. According to the present invention, the vacuum cleaning vehicle may comprise: a hose having one side disposed in a predetermined position; a storage tank in which the other side of the hose is installed; a vacuum pump which sucks air inside the storage tank so that dirt is introduced into the storage tank through the hose; a cyclone installed between the storage tank and the vacuum pump to filter internal air flowing out of the storage tank; and a silencer installed on the top of the vacuum pump to discharge internal air discharged from the vacuum pump to the outside and to supply external air to the vacuum pump.

Description

vacuum cleaner {VACUUM CLEANING CAR}

The present invention relates to a vacuum cleaning vehicle, and more particularly, to a vacuum cleaning vehicle capable of increasing dust collection efficiency during cleaning and performing a quiet cleaning operation.

In general, each local government or an institution managing a road periodically performs a cleaning operation to remove dirt accumulated on the road, and through this, the road surface is maintained in a clean state.

In addition, with the development of architectural technology, as recently built buildings are getting larger in scale, the need for public hygiene and image enhancement in places where people frequently enter and exit is maximizing.

Manual cleaning of roads and large-scale facilities requires a lot of manpower, so the cost burden is high, and there is a problem that work efficiency may be lowered as the area is large.

To solve this problem, recently, a vacuum cleaner that automatically cleans various contaminants such as dust, as well as freedom of movement, is used in large buildings such as roads, marts, airport runways, and school auditoriums to increase the cleaning efficiency of workers. is widely used.

A vacuum cleaner generally consists of a storage tank for collecting dirt, a vacuum pump that sucks the internal air of the storage tank, a cyclone that filters the internal air, and a silencer that reduces noise generated by the vacuum pump.

The components of the vacuum cleaner described above are loaded at the rear of a vehicle such as a truck, but the range that can be loaded is limited by the standardization of the vehicle.

Of these, the silencer requires two silencers, such as a silencer for discharging the air delivered from the vacuum pump and a silencer for cooling the heat generated when the vacuum pump is driven, and there is no space for these silencers to be loaded. There is a problem in that the capacity of the storage tank is reduced as much as necessary.

Republic of Korea Patent Publication No. 10-2017-0094942

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vacuum cleaner capable of improving dust collection efficiency, reducing noise generated during cleaning, and further securing a storage tank capacity.

In order to achieve the above object, the present invention is a hose in which one side is disposed at a predetermined position; a storage tank to which the other side of the hose is installed; a vacuum pump for sucking the internal air of the storage tank so that dirt is introduced into the storage tank through a hose; a cyclone installed between the storage tank and the vacuum pump to filter the internal air flowing out of the storage tank; and a silencer installed on the upper part of the vacuum pump to discharge internal air discharged from the vacuum pump to the outside, and to supply external air to the vacuum pump.

In the present invention, a plurality of cyclones may be sequentially arranged adjacent to each other.

The present invention may further include a cover for opening and closing the upper portion of the cyclone.

In the present invention, the cover is a cylindrical portion that is inserted into the center of the cyclone; Mounting plate installed on the upper end of the cylindrical portion along the circumference of the cylindrical portion in contact with the upper surface of the cyclone; And it may include a handle installed on the mounting plate.

The present invention may further include a bag filter installed between the storage tank and the vacuum pump to filter the internal air discharged from the cyclone.

In order to achieve the above object, the present invention provides an exhaust chamber through which the internal air is introduced into the inside through a vacuum pump for sucking the internal air of the storage tank and flows out to the outside; and an intake chamber that surrounds the exhaust chamber, and through which outside air is introduced and discharged to the vacuum pump.

The present invention may further include an intake-side sound-absorbing member installed in the intake chamber.

The present invention relates to a pair of partition walls spaced apart from each other in a longitudinal direction of the exhaust chamber and installed inside the exhaust chamber; And it is installed between the partition walls, the internal air flows, it may include a sound-absorbing tube in which a plurality of through-holes are formed.

In the present invention, the exhaust chamber is formed between the partition walls, the sound absorption chamber is installed a sound absorption pipe; And it is formed on both sides of the sound absorption chamber may include an expansion chamber in which the internal air is diffused. Silencer.

The present invention may further include a sound absorbing member installed in the exhaust chamber.

The vacuum cleaner according to the present invention has an effect of improving dust collection efficiency by employing a plurality of cyclones.

In addition, by installing a cover on the upper part of the cyclone has the effect of making maintenance and inspection convenient.

In addition, two silencers for cooling and noise reduction of the vacuum pump are integrated into one and installed on the upper part of the vacuum pump, so that effective noise reduction and cooling of the vacuum pump can be achieved. There is an effect of increasing the capacity of the storage tank by securing additionally.

1 is a plan view of a vacuum cleaner according to an embodiment of the present invention.
2 to 4 are cross-sectional views illustrating the vacuum cleaner shown in FIG. 1 at various angles.
5 and 6 are perspective and cross-sectional views of the storage tank shown in FIG. 1 sequentially.
FIG. 7 is a view showing the cover of the cyclone shown in FIG. 1 .
FIG. 8 is a front view of a bag filter installed in the filter box shown in FIG. 1 .
9 is a perspective view of the vacuum pump and silencer shown in FIG. 1 .
FIG. 10 is a perspective view of the silencer shown in FIG. 1 .
Fig. 11 is a projection plan view showing a first embodiment of the silencer shown in Fig. 10;
12A, B and 13 are AA section diagrams, BB section diagrams, and CC section diagrams sequentially shown in FIG. 11 .
Fig. 14 is a projection plan view showing a second embodiment of the silencer shown in Fig. 10;
15A, B and 16 are AA section diagrams, BB section diagrams, and CC section diagrams sequentially shown in FIG. 14 .
17 is a cross-sectional view showing a third embodiment of the silencer shown in FIG.
18 to 20 are cross-sectional views sequentially illustrating a fourth embodiment of the silencer shown in FIG. 10 at various angles.

In order to describe in detail enough that a person skilled in the art to which the present invention pertains can easily implement the technical idea of the present invention, the most preferred embodiment of the present invention will be described with reference to the accompanying drawings.

First of all, it should be noted that in adding reference numerals to the components of each drawing, the same components are given the same reference numerals as possible even if they are indicated on different drawings.

In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In the direction expressed in the content to be described below prior to the specific description of the present invention, the upper portion of the "upper" is the direction toward the silencer 140 side with respect to the vacuum pump 120 shown in FIG. 9, " The lower part of the "lower part" is defined in a direction toward the vacuum pump 120 side with respect to the silencer 140 .

Hereinafter, a vacuum cleaner according to an embodiment of the present invention will be described with reference to FIGS. 1 to 20 .

1 is a plan view of a vacuum cleaner according to an embodiment of the present invention, FIGS. 2 to 4 are cross-sectional views illustrating the vacuum cleaner shown in FIG. 1 at various angles, and FIGS. 5 and 6 are sequentially shown in FIG. It is a perspective view and a cross-sectional view of a storage tank.

1 to 6 , the vacuum cleaning vehicle 100 is provided through a hose 10 having one side disposed at a predetermined position, a storage tank 110 having the other side of the hose 10 installed, and the hose 10 . The storage tank 110 may include a vacuum pump 120 for sucking the internal air (hereinafter, referred to as 'internal air') of the storage tank 110 so that dirt is introduced into the interior of the storage tank 110 .

In addition, the vacuum cleaning vehicle 100 is installed between the storage tank 110 and the vacuum pump 120 to filter the internal air flowing out of the storage tank 110 . It may include a silencer 140 installed on the upper part to discharge the internal air discharged from the vacuum pump 120 to the outside, and to supply external air to the vacuum pump 120 .

The storage tank 110 is a container of a certain capacity capable of accommodating dirt therein, and may be manufactured using a known material that has a certain rigidity and is strong against corrosion, such as alloy steel.

A manhole 111 is installed on the upper portion of the storage tank 110 , and an administrator can perform internal cleaning and maintenance of the storage tank 110 through the manhole 111 .

The other end of the hose 10 is installed in the manhole 111 , and a dust collecting box 20 in which the cyclone 130 is installed may be disposed on the side of the storage tank 110 .

The dust collecting box 20 has a hexahedral shape, and may be manufactured using the same material as the storage tank 110 , and the cyclone 130 may be installed on the dust collecting box 20 .

A dust collecting tank 21 is formed in the lower inner portion of the dust collecting box 20 to store the dust collected through the cyclone 130 .

A vacuum pressure is formed inside the storage tank 110 by the operation of the vacuum pump 120 so that dirt is sucked through the hose 10, and scale dirt such as gravel and tree branches is It may be accommodated in the storage tank 110 .

Then, the internal air containing dust flows to the cyclone 130 through the first flow path 41 disposed between the storage tank 110 and the cyclone 130 .

An air exhaust hole 131a is formed on the upper surface of the cyclone 130 along the circumference of the central portion 131b based on the central portion 131b of the cyclone 130, and the first flow path 41 is located on the side surface. The suction part 131 which is installed eccentrically and the inside air is introduced into the inside, is installed in the lower part of the suction part 131 in the form of a cone, and the dust discharge hole 132a is formed at the bottom so that the dust contained in the internal air is removed from the above. It may include a discharge unit 132 flowing out to the dust collecting tank (21).

The internal air flowing into the suction unit 131 collides with the inner circumferential surface of the suction unit 131 , so that large particles of dust fall to the discharge unit 132 and are stored in the dust collecting tank 21 , and large particles of dust are stored in the dust collecting tank 21 . This removed and filtered internal air flows out through the air outlet hole (131a).

The cyclone 130 is of a small scale unlike the conventional large scale, and is made up of a plurality of cyclones 130 and is sequentially disposed adjacent to each other in the longitudinal direction or the width direction of the storage tank 110 to form the cyclone 130 of a small scale. By providing a plurality of pieces, the capacity of the storage tank 110 can be further expanded compared to the prior art while maintaining the dust collection effect.

The first flow path 41 may be branched into a plurality according to the number of the cyclones 130 to be respectively installed in the suction unit 131 .

FIG. 7 is a view showing the cover of the cyclone shown in FIG. 1 .

Referring to FIG. 7 , when the vacuum pump 120 is not driven, in order to prevent foreign substances from being introduced through the air outlet hole 131a, the vacuum cleaning vehicle 100 moves the upper part of the cyclone 130 . It may further include a cover 150 to open and close.

The cover 150 has a cylindrical portion 151 with both sides open and inserted into the central portion 131b, and is installed on the upper end of the cylindrical portion 151 along the circumference of the cylindrical portion 151 to provide the cyclone 130. It may include a support plate 152 in contact with the upper surface of the handle 153 installed on the support plate 152 .

When the manager pulls the cylindrical part 151 into the central part 131b while holding the handle 153 and the mounting plate 152 comes into contact with the upper surface of the suction part 131, the cover 150 may close the air outlet hole (131a).

When the wet foreign material is introduced through the hose 10 , the internal air first filtered by the cyclone 130 flows out into the second flow path 42 disposed on the side of the dust collecting box 20 .

In addition, when dry foreign substances are introduced through the hose 10 , secondary filtration of the internal air discharged from the cyclone 130 may be performed to increase the purification efficiency.

FIG. 8 is a front view of a bag filter installed in the filter box shown in FIG. 1 .

The vacuum cleaner 100 further includes a bag filter 160 that is installed between the storage tank 110 and the vacuum pump 120 for secondary filtration of internal air and filters the internal air flowing out of the cyclone 130 . may include

The bag filter 160 may be installed in the filter box 30 disposed on the side of the storage tank 110 and the dust collecting box 20 .

The filter box 30 has a hexahedral shape, and may be manufactured using the same material as the dust collector 20 , and a plurality of filter holes 31 are mutually constant so that a plurality of bag filters 160 can be installed. Spaced apart may be formed on the upper portion of the filter box (30).

The internal air flowing out from the cyclone 130 by the operation of the vacuum pump 120 passes through the third flow path 43 disposed between the dust collecting box 20 and the filter box 30 to the bag filter 160 . to flow with

As shown in FIG. 8 , the internal air flows into the lower part of the bag filter 160 and flows out to the upper part to perform secondary filtration, and the internal air flowing out from the bag filter 160 is transferred to the filter box 30 ) flows out into the fourth flow path 44 disposed on the side surface.

The second flow passage 42 and the fourth flow passage 44 are joined to one end of the fifth passage 45 , and the other end of the fifth passage 45 is installed in the vacuum pump 120 .

The vacuum cleaner 100 is installed in the second flow path 42, a first valve 51 for selectively opening and closing the second flow path 42, is installed in the fourth flow path 44, the fourth flow path It may further include a second valve 52 for selectively opening and closing (44).

When a wet foreign material is introduced through the hose 10, the bag filter 160 may be damaged by internal air, so the manager opens the second flow path 42 and opens the fourth flow path 44. can be closed

In addition, when dry foreign substances are introduced through the hose 10 , the second flow path 42 is closed and the fourth flow path 44 is opened to perform secondary filtration of the internal air.

The internal air flowing into the vacuum pump 120 through the fifth flow path 45 may be introduced into the silencer 140 via the vacuum pump 120 .

When the vacuum pump 120 is driven, not only noise is generated from the vacuum pump 120 , but also noise is generated due to turbulence generated in the process of the internal air flowing by the operation of the vacuum pump 120 . will do

In order to reduce the noise, a silencer is required, and in order to cool the heat generated when the vacuum pump 120 is driven, a separate silencer for cooling the vacuum pump 120 is conventionally provided to the storage tank ( 110) was difficult to expand.

9 is a perspective view of the vacuum pump and the silencer shown in FIG. 1 , and FIG. 10 is a perspective view of the silencer shown in FIG. 1 .

And, Fig. 11 is a projection plan view showing the first embodiment of the silencer shown in Fig. 10, and Figs. 12a, b and 13 are sequentially a section A-A, a section B-B, and a section C-C shown in Fig. 11. .

9 to 13 , in the first embodiment of the silencer 140 , an exhaust chamber 141 in which internal air is introduced into the interior through the vacuum pump 120 and flows out to the outside, the exhaust chamber ( It may include an intake chamber 142 surrounding the 141 , through which outside air is introduced and discharged to the vacuum pump 120 .

That is, the silencer 140 is installed on the upper part of the vacuum pump 120 , and the intake chamber 142 performs both noise reduction and vacuum pump cooling through a double structure surrounding the exhaust chamber 141 . Therefore, the capacity of the storage tank 110 can be further expanded compared to the prior art.

The silencer 140 has one side passing through the intake chamber 142 and is installed on one side of the exhaust chamber 141, and the other side of the silencer 140 has a first exhaust pipe 145 installed in the vacuum pump 120, one side is A second exhaust pipe 146 installed on the other side of the exhaust chamber 141 and exposed to the outside through the other side of the intake chamber 142 may be further included.

In addition, the silencer 140 has one side installed on one side of the intake chamber 142 , the other side of the first intake pipe 147 installed on the vacuum pump 120 , and one side of the intake chamber 142 . It may further include a second intake pipe 148 installed on the other side of the, the other side is exposed to the outside.

That is, by driving the vacuum pump 120 , the internal air is introduced into the exhaust chamber 141 through the first exhaust pipe 145 , and noise reduction is performed in the process of diffusion, and then the second exhaust pipe 146 . can be leaked to the outside.

And, by driving the vacuum pump 120 , outside air is introduced into the intake chamber 142 through the first intake pipe 147 , and then to the vacuum pump 120 through the second intake pipe 148 . By being introduced, cooling of the vacuum pump 120 may be performed.

The intake chamber 142 may be provided with an intake-side sound-absorbing member 142a, and the intake-side sound-absorbing member 142a may be manufactured in a porous form made of polyester and glass fiber, and the intake chamber ( 142) can be attached.

Here, the intake-side sound absorbing member 142a is installed to surround the inner circumferential surface or the outer circumferential surface of the intake chamber 142, or is made up of a plurality of them along the periphery of the intake chamber 142. On the inner circumferential surface or the outer circumferential surface of the intake chamber 142 They can be installed spaced apart from each other by a certain interval.

The silencer 140 may further include a shielding member 149 installed on the other side of the intake chamber 142 to cover the second exhaust pipe 146 and the second intake pipe 148 .

The shielding member 149 is in the form of a plate, and by being disposed on the second exhaust pipe 146 and the second intake pipe 148 , the second exhaust pipe 146 and the second intake pipe 148 , including rainwater. The soundness of the silencer 140 can be secured by preventing foreign substances from entering.

Fig. 14 is a projection plan view showing a second embodiment of the silencer shown in Fig. 10, and Figs. 15a, b and 16 are a section A-A, a section B-B, and a section C-C shown in Fig. 14 sequentially.

14 to 16 , the second embodiment of the silencer 140 ′ is spaced apart from each other at regular intervals along the longitudinal direction of the exhaust chamber 141 in addition to the configuration of the first embodiment described above, and the exhaust chamber ( The partition wall 143 installed in the interior of the 141 , the partition wall 143 is installed between the partition walls 143 to allow internal air to flow, and may further include a sound absorbing pipe 144 in which a plurality of through holes 144a are formed.

An insertion hole 143a into which the sound absorbing tube 144 is fitted may be formed in the partition wall 143 .

The exhaust chamber 141 is formed between the partition walls 143, the sound absorption chamber 141a in which the sound absorption tube 144 is installed, the sound absorption chamber 141a is formed on both sides of the expansion chamber ( 141b).

Noise can be reduced while the internal air is introduced into the expansion chamber 141b and diffused.

In general, it is known that the frequency characteristics of flow noise by air are large at high frequencies, and for this reason, an insertion loss of a lower frequency band is achieved at the inlet side of the sound absorbing tube into which the internal air flows, and the outlet side of the sound absorbing tube is Since the insertion loss of a higher frequency band is realized compared to the inlet side, resonance noise reduction can be achieved.

In addition, the through hole 144a is formed uniformly in the sound absorbing tube 144 as a whole to allow the internal air to more smoothly reach the intake-side sound absorbing member 142a, thereby further enhancing the noise reduction effect.

17 is a cross-sectional view showing a third embodiment of the silencer shown in FIG.

Referring to FIG. 17 , in the third embodiment of the silencer 140 ″, in addition to the configurations of the first and second embodiments described above, the sound absorbing chamber 141a may have an exhaust-side sound absorbing member 141c installed. .

The exhaust-side sound-absorbing member 141c may be made of the same material as the intake-side sound-absorbing member 142a, and is installed to surround the inner or outer circumferential surface of the sound-absorbing chamber 141a, or consists of a plurality of the sound-absorbing chamber 141a. Along the circumference of the sound-absorbing chamber (141a) may be installed to be spaced apart from each other at a predetermined interval on the inner peripheral surface or the outer peripheral surface.

That is, the internal air flowing into the sound absorbing tube 144 is ejected into the sound absorbing chamber 141a through the through hole 144a to reach the exhaust-side sound absorbing member 141c, thereby further reducing noise. can

18 to 20 are cross-sectional views sequentially illustrating a fourth embodiment of the silencer shown in FIG. 10 at various angles.

18 to 20 , in the fourth embodiment of the silencer 140 ″″, in addition to the configuration of the first to third embodiments described above, the sound absorbing tube 144 includes a plurality of the partition wall 143 ) may be installed on the partition wall 143 by being spaced apart from each other at a predetermined distance along the circumference.

For example, the sound-absorbing tube 144 may be made of three, the insertion hole 143a is formed in the partition wall 143 spaced apart at intervals of 120°, the sound-absorbing tube 144 is the insertion hole 143a ) can be inserted into

As described above, the vacuum cleaner according to an embodiment of the present invention includes a plurality of small-scale cyclones to maintain the dust collection effect and secure the capacity of the storage tank.

In addition, two silencers for cooling and noise reduction of the vacuum pump are integrated into one and installed on the upper part of the vacuum pump, thereby further securing the capacity of the storage tank.

As described above, the best embodiment has been disclosed in the drawings and the specification. Although specific terms are used herein, they are used only for the purpose of describing the present invention, and are not used to limit the meaning or the scope of the present invention described in the claims. Therefore, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

100: vacuum cleaner 110: storage tank
120: vacuum pump 130: cyclone
140,140',140'',140''' : Silencer 150 : Cover
160: bag filter

Claims (10)

a hose having one side disposed at a predetermined position;
a storage tank in which the other side of the hose is installed;
a vacuum pump for sucking the internal air of the storage tank so that dirt is introduced into the storage tank through the hose;
a cyclone installed between the storage tank and the vacuum pump to filter the internal air flowing out of the storage tank; and
a silencer installed above the vacuum pump to discharge the internal air discharged from the vacuum pump to the outside and supply external air to the vacuum pump;
A vacuum cleaner comprising a.
The method of claim 1,
The cyclone is
A vacuum cleaner consisting of a plurality of vacuum cleaners that are sequentially arranged adjacent to each other.
The method of claim 1,
The vacuum cleaner further comprising a cover for opening and closing the upper portion of the cyclone.
4. The method of claim 3,
the cover,
a cylindrical portion inserted into the center of the cyclone;
a mounting plate installed on the upper end of the cylindrical portion along the circumference of the cylindrical portion and in contact with the upper surface of the cyclone; and
a handle installed on the mounting plate;
A vacuum cleaner comprising a.
The method of claim 1,
and a bag filter installed between the storage tank and the vacuum pump to filter the internal air discharged from the cyclone.
an exhaust chamber in which the internal air is introduced into the inside through a vacuum pump sucking the internal air of the storage tank and discharged to the outside; and
an intake chamber surrounding the exhaust chamber, through which outside air is introduced and discharged to the vacuum pump;
A silencer that includes.
7. The method of claim 6,
The silencer further comprising an intake-side sound-absorbing member installed in the intake chamber.
7. The method of claim 6,
a pair of partition walls spaced apart from each other by a predetermined distance along the longitudinal direction of the exhaust chamber and installed inside the exhaust chamber; and
a sound absorbing tube installed between the partition walls, through which the internal air flows, and a plurality of through holes are formed;
A silencer that includes.
9. The method of claim 8,
The exhaust chamber,
a sound-absorbing chamber formed between the partition walls, the sound-absorbing tube being installed; and
an expansion chamber formed on both sides of the sound absorption chamber to diffuse the internal air;
A silencer that includes.
7. The method of claim 6,
Silencer further comprising a sound absorbing member installed in the exhaust chamber.

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