JP3669216B2 - Car wash machine drying equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drying apparatus for drying a vehicle provided in a car wash machine.
[0002]
[Prior art]
Conventionally, as this type of drying apparatus, there is one disclosed in Japanese Utility Model Publication No. 5-20619, for example. That is, in the car wash machine main body, an upper nozzle body (drying nozzle) for injecting and drying drying air on the upper surface of the vehicle, and a pair of left and right side nozzles for injecting and drying drying air on the side surface of the vehicle A body (drying nozzle), a first blower for supplying drying air to the upper nozzle body, and a second blower for supplying drying air to the side nozzle body are provided.
[0003]
Further, a sound absorbing material is provided in each of the upper nozzle body and the side nozzle body so that the drying air is sprayed from the upper nozzle body and the side nozzle body to dry the vehicle. The noise was reduced.
[0004]
[Problems to be solved by the invention]
However, in the above conventional type, since the sound absorbing material is provided inside the upper nozzle body and inside the side nozzle body, there is a problem that the upper nozzle body and the side nozzle body are enlarged. In particular, in order to further reduce noise, it is necessary to increase the amount of the sound absorbing material, which may increase the size of the upper nozzle body and the side nozzle body.
[0005]
An object of this invention is to provide the drying apparatus of the car wash machine which can prevent the enlargement of the nozzle for drying and can improve a noise reduction effect further.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a drying apparatus for a car wash machine according to the first aspect of the present invention includes a drying nozzle for injecting drying air to a vehicle and a blowing apparatus for supplying the drying air to the drying nozzle. And
A tubular member is connected between the drying nozzle and the blower ,
An air flow passage is formed inside the tubular member,
A hollow chamber is provided in the middle of the tubular member,
An enlarged passage portion having an enlarged passage cross-sectional area is formed inside the hollow chamber ,
A sound absorbing material is attached to the inner surface of the hollow chamber,
The sound absorbing material is composed of glass wool sandwiched between a porous member and a stop plate,
The porous member faces the enlarged passage portion and the stop plate faces the inner surface of the hollow chamber;
The porous member is composed of an aluminum net member and aluminum fibers .
[0007]
According to this, the air blower is driven, drying air is supplied to the drying nozzle, and the vehicle surface is dried by being jetted from the drying nozzle to the vehicle. At this time, the drying air sent out from the blower flows into the enlarged passage portion in the hollow chamber through the air flow passage. In this enlarged passage portion, the passage cross-sectional area is rapidly enlarged, so that pressure loss occurs in the drying air, and the kinetic energy of the drying air is reduced, thereby attenuating the noise when the drying air flows. .
[0008]
Further, when the drying air passes through the enlarged passage portion, since the noise is absorbed by the sound absorbing material provided in the cavity chamber, further, the noise is reduced.
[0009]
Furthermore, since the sound absorbing material is provided not in the drying nozzle but in the hollow chamber in the middle of the tubular member that supplies the drying air to the drying nozzle, the size of the drying nozzle is prevented. be able to.
[0010]
The car wash machine according to the second aspect of the present invention is provided with a side nozzle for injecting drying air on the side surface of the vehicle and a top nozzle for injecting drying air on the upper surface of the vehicle, as the drying nozzle.
As a tubular member, the duct is connected between the air outlet of the blower and the inlet of the side nozzle,
One end of the branch duct is connected to the middle part of the duct, and the other end of the branch duct is connected to the inlet of the top nozzle,
A hollow chamber is arrange | positioned between the ventilation port of an air blower, and the branch part to which the said branch duct is connected to a duct.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described below with reference to FIGS.
As shown in FIG. 5, reference numeral 1 denotes a self-propelled car wash machine. A gate-shaped car wash machine body 3 supported and guided by the floor rail 2 and capable of running forward and backward is capable of moving up and down to brush the upper surface of the vehicle 4. A top brush (not shown), a pair of left and right side brushes (not shown) for brushing both side surfaces and front and rear surfaces of the vehicle 4, and a pair of left and right rocker brushes for brushing the lower portions of both sides of the vehicle 4 and each wheel ( (Not shown), a cleaning water arch (not shown) for injecting cleaning water onto the vehicle 4, a wax arch (not shown) for injecting liquid wax onto the vehicle 4, and a vehicle height for detecting the vehicle height A detection device 5 (sonic sensor or the like) is provided.
[0012]
Further, the car wash machine main body 3 has a pair of left and right side nozzles 8 (an example of a drying nozzle) that injects drying air S onto both sides of the vehicle 4 to dry both sides of the vehicle 4, and A top nozzle 9 (an example of a drying nozzle) that injects drying air S onto the upper surface to dry the upper surface of the vehicle 4, and a pair of left and right blowers 10 that supply the drying air S to these nozzles 8, 9 ( Blower). The top nozzle 9 is provided so as to freely move up and down, and is configured to be lifted and lowered by a lifting drive device (not shown) in accordance with the vehicle height detected by the vehicle height detection device 5.
[0013]
As shown in FIG. 1, a flexible tubular duct 13 is connected between the blower port 11 of the blower 10 and the inlet 12 of the side nozzle 8. Air ducts 14 are formed inside these ducts 13.
A square box-shaped hollow chamber 15 is provided in the middle of the duct 13. That is, the duct 13 includes an upstream duct body 17 connected between the air outlet 11 of the blower 10 and the inlet portion 16 of the hollow chamber 15, an outlet portion 18 of the hollow chamber 15, and an inlet port of the side nozzle 8. 12 and a downstream duct body 19 connected between the two.
[0014]
An enlarged passage portion 20 having a rectangular cross section is formed inside the hollow chamber 15, and the passage sectional area of the enlarged passage portion 20 is larger than the passage sectional area in the duct 13. That is, as shown in FIG. 2, when the vertical width inside the hollow chamber 15 is A, the horizontal width is B, and the inner diameter of the duct 13 is C,
The passage cross-sectional area of the enlarged passage portion 20 = A × B> cross-sectional area of the duct 13 = π × C ^2/4
It is structured as follows. A sound absorbing material 21 is attached to the inner surface of the hollow chamber 15.
[0015]
As shown in FIGS. 3 and 4, the sound absorbing material 21 includes a thin porous member 23 made of aluminum, an aluminum stopper plate 24 facing the porous member 23 at a predetermined interval, and the porous member 23. The glass wool 25 is sandwiched between the member 23 and the stop plate 24. The porous member 23 includes an aluminum net member 26 (mesh member) and aluminum fibers 27.
[0016]
One end of each branch duct 29 is connected to the middle part of the left and right downstream duct bodies 19, and the other end of each branch duct 29 is connected to the pair of left and right inlets 30 of the top nozzle 9.
Hereinafter, the operation of the above configuration will be described.
When the car wash is performed, first, the car wash machine body 3 travels forward, and the wash water is sprayed from the wash water arch onto the surface of the vehicle 4 while the vehicle height detection device 5 detects the vehicle height, and the liquid wax Are sprayed from the wax arch onto the surface of the vehicle 4, and the brushes are driven to rotate to brush the surface of the vehicle 4.
[0017]
When the brushing cleaning of the front and rear surfaces, the side surfaces, and the upper surface of the vehicle 4 is completed as described above, the car wash machine main body 3 then travels backward, the air blowers 10 are driven, and the drying air S is generated. These are supplied to both the side nozzles 8 and the top nozzle 9 and injected from the injection ports 31 and 32 of these nozzles 8 and 9. As a result, as shown in FIG. 5, both side surfaces of the vehicle 4 are dried with the drying air S from the side nozzle 8 and the upper surface is dried with the drying air S from the top nozzle 9. At this time, the top nozzle 9 moves up and down according to the vehicle height detected by the vehicle height detection device 5.
[0018]
During the drying process as described above, as shown in FIG. 1, the drying air S sent out from the air blowing ports 11 of both the air blowers 10 passes through the air flow passage 14 in the upstream duct body 17 and the hollow chamber 15. It flows into the enlarged passage portion 20 inside. At this time, since the passage cross-sectional area is rapidly enlarged, the drying air S flows into the enlarged passage portion 20 to cause a pressure loss in the drying air S, and the kinetic energy of the drying air S is reduced. Thereby, the noise when the drying air S flows is attenuated. Furthermore, since the noise is also absorbed by the sound absorbing material 21 attached to the inner surface of the hollow chamber 15, the noise is further reduced.
[0019]
Thereafter, a part of the drying air S that has flowed into the downstream duct body 19 from the inside of the hollow chamber 15 is supplied into the side nozzle 8 and injected from the injection port 31. The remainder of the drying air S flows from the downstream duct body 19 into the branch duct 29, is supplied into the top nozzle 9, and is ejected from the ejection port 32.
Thus, the sound absorbing material 21 is not provided in the side nozzle 8 or the top nozzle 9 but in the hollow chamber 15 in the middle of the duct 13 for supplying the drying air S to the nozzles 8 and 9. Since it is provided, it is possible to prevent the side nozzle 8 and the top nozzle 9 from becoming large.
[0020]
As shown in FIG. 1, the mounting position of the cavity 15 is closer to the air inlet 11 of the air blower 10 than to the air inlet 12 of the side nozzle 8 or the air inlet 30 of the top nozzle 9. The effect of reduction increases. Therefore, it is effective to provide the hollow chamber 15 in the vicinity of the blower port 11 of the blower 10.
In the above-described embodiment, the self-propelled car wash machine body 3 has been described. However, the car wash machine body is a fixed installation type. It may be a car wash machine of the type for washing a car. Alternatively, the self-propelled car washer main body 3 may be moved back and forth and the vehicle 4 may be washed while being transported by the transport device.
[0021]
In the above embodiment, the hollow chamber 15 is formed in a square box shape, but is not limited to this shape, and may be, for example, a cylindrical shape.
In the first embodiment, as shown in FIG. 1, the hollow chamber 15 is provided in the middle of the duct 13 and the branch duct 29 is connected to the downstream duct body 19. However, the second embodiment As shown in FIG. 6, the branch duct 29 may be connected to the upstream duct body 17, and the hollow chamber 15 may be provided in the middle part of the duct 13 and in the middle part of the branch duct 29.
[0022]
Moreover, in the said 1st Embodiment, as shown in FIG. 1, although the air blower 10 is shared by the side nozzle 8 and the top nozzle 9, as shown in FIG. 7 as 3rd Embodiment. The air blower 10 for supplying the drying air S to the side nozzle 8 is provided, the air blower 10 and the side nozzle 8 are connected by a duct 13, a hollow chamber 15 is provided in the middle of the duct 13, A pair of left and right air blowers 40 for supplying the drying air S to the top nozzle 9 are provided, the air blowers 40 and the top nozzle 9 are connected by separate ducts 41, and a separate cavity is provided in the middle of the ducts 41. Each chamber 42 may be provided.
[0023]
【The invention's effect】
As described above, according to the first aspect of the present invention, the drying air sent from the blower flows into the enlarged passage portion in the hollow chamber through the air flow passage, and in this enlarged passage portion, the flow passage cross-sectional area rapidly increases. Since it is enlarged, the noise when the drying air flows is attenuated. Further, when the drying air passes through the enlarged passage portion, since the noise is absorbed by the sound absorbing material provided in the cavity chamber, further, the noise is reduced.
[0024]
Furthermore, since the sound absorbing material is provided not in the drying nozzle but in the hollow chamber in the middle of the tubular member that supplies the drying air to the drying nozzle, the size of the drying nozzle is prevented. be able to.
[Brief description of the drawings]
FIG. 1 is a partially cutaway view showing a configuration of a drying apparatus for a car wash machine according to a first embodiment of the present invention.
FIG. 2 is a view taken along arrow XX in FIG.
FIG. 3 is a cross-sectional view showing the structure of a sound absorbing material of the drying device of the car wash machine.
FIG. 4 is an enlarged view of the surface of a porous member constituting the sound absorbing material of the drying device of the car wash machine.
FIG. 5 is a front view of the car wash machine.
FIG. 6 is a partially cutaway view showing a configuration of a drying apparatus for a car wash machine according to a second embodiment of the present invention.
FIG. 7 is a schematic diagram showing a configuration of a drying device for a car wash machine according to a third embodiment of the present invention.
[Explanation of symbols]
1 Car Wash Machine 3 Car Wash Machine Body 4 Vehicle 8 Side Nozzle (Drying Nozzle)
9 Top nozzle (nozzle for drying)
10 Blower 13 Duct (tubular member)
14 Air flow passage 15 Cavity chamber 20 Enlarged passage portion 21 Sound absorbing material 29 Branch duct (tubular member)
40 Another blower 41 Another duct (tubular member)
42 Cavity S Drying Air

Claims (2)

The car wash body is provided with a drying nozzle for injecting drying air to the vehicle, and a blower for supplying the drying air to the drying nozzle,
A tubular member is connected between the drying nozzle and the blower ,
An air flow passage is formed inside the tubular member,
A hollow chamber is provided in the middle of the tubular member,
An enlarged passage portion having an enlarged passage cross-sectional area is formed inside the hollow chamber ,
A sound absorbing material is attached to the inner surface of the hollow chamber,
The sound absorbing material is composed of glass wool sandwiched between a porous member and a stop plate,
The porous member faces the enlarged passage portion and the stop plate faces the inner surface of the hollow chamber;
A drying apparatus for a car wash machine, wherein the porous member is composed of an aluminum net member and aluminum fibers . As a drying nozzle, a side nozzle that injects drying air to the side of the vehicle and a top nozzle that injects drying air to the upper surface of the vehicle are provided,
As a tubular member, the duct is connected between the air outlet of the blower and the inlet of the side nozzle,
One end of the branch duct is connected to the middle part of the duct, and the other end of the branch duct is connected to the inlet of the top nozzle,
2. The drying apparatus for a car wash machine according to claim 1 , wherein the hollow chamber is disposed between the air outlet of the air blower and the branch portion where the branch duct is connected to the duct .

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