JP2017001550A - Washing device, and car washing machine using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing device which reduces manufacturing cost and prevents danger to a human body, and provide a car washing machine using the same.SOLUTION: A washing device includes: an injection nozzle 45 (a first injection nozzle) which injects a fine-particle washing medium W from an injection port 46 (a first injection port) by mixing compressed air and the washing medium W; and an injection nozzle 55 (a second injection nozzle) which has an injection port 56 (a second injection port), which has the injection nozzle 45 arranged internally and faces to the injection port 46, and an inflow port of air connected to a blower 20. The injection nozzle 55 includes an acceleration part 58 which has an inner surface formed in a conical surface and narrows a flow channel on a downstream of the injection port 46, and a cylindrical dispersion part 60 which is arranged on a downstream of the acceleration part 58 and opens the injection port 56.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a cleaning device and a car wash machine having an injection nozzle.

  A conventional car wash machine is disclosed in Patent Document 1. The car wash machine includes a car wash machine body that moves in the front-rear direction with respect to the vehicle to be washed. The car wash machine main body has two left and right opposing stand parts and a ceiling part connecting the upper ends of the stand parts, and is formed in a gate shape across the vehicle to be cleaned.

  Both stand parts are provided with a cleaning device having an injection nozzle. A water pipe and a compressor are connected to the cleaning device, so that high-pressure cleaning water can be jetted from the jet nozzle.

  Moreover, the car wash machine main body is provided with a drying device. The drying device sends air to the surface of the vehicle to be cleaned.

  In the car wash machine configured as described above, when the vehicle to be cleaned stops at a predetermined position, high-pressure cleaning water is jetted onto the surface of the vehicle to be cleaned by the cleaning device. Following cleaning by the cleaning device, air is blown to the vehicle to be cleaned by the drying device to dry the vehicle to be cleaned.

JP 2002-59816 A JP 2011-207270 A

  However, since the above-described car wash machine injects high-pressure wash water, a high-pressure pump is required, which increases the manufacturing cost of the car wash machine, and there is a problem that it becomes dangerous if the wash water directly hits human bodies such as staff.

  An object of the present invention is to provide a cleaning device capable of reducing manufacturing costs and avoiding dangers of a human body and a car wash machine using the same.

  In order to achieve the above object, a cleaning apparatus of the present invention includes a first injection nozzle that mixes compressed air and a cleaning medium and injects the cleaning medium of fine particles from a first injection port, and a first injection nozzle. And a second injection nozzle provided with a second injection port facing the first injection port and an air inlet connected to the blower, the second injection nozzle having a conical inner surface downstream of the first injection port An accelerating portion that is formed on the surface and narrows the flow path, and a cylindrical dispersion portion that is arranged downstream of the accelerating portion and opens the second injection port.

  Moreover, the present invention is characterized in that the accelerating portion is longer in the axial direction than the dispersing portion in the cleaning apparatus having the above configuration.

  In addition, a car wash machine of the present invention includes the above-described cleaning device, and the surface of the vehicle to be cleaned is cleaned by the cleaning device.

  According to the present invention, the second injection nozzle includes the first injection nozzle having the first injection port, the blower is connected to one end, and the inner surface disposed downstream of the first injection port is the conical acceleration portion. A cylindrical dispersion portion that is arranged downstream of the acceleration portion and opens the second injection port. For this reason, the fine particle cleaning medium ejected from the first ejection port is accelerated by the acceleration unit and is ejected from the second ejection port by the dispersion unit at a predetermined ejection angle. As a result, a high-speed cleaning medium having a desired particle size collides with the cleaning surface at a desired surface pressure and flow rate. Therefore, it is possible to avoid danger to the human body and reduce the cleaning cost because a large amount of high-pressure compressed air is not required.

The side view which shows the car wash machine of one Embodiment of this invention The front view which shows the car wash machine of one Embodiment of this invention 1 is a schematic configuration diagram showing a cleaning device for a car wash machine according to an embodiment of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a side view and a front view showing a car wash machine according to an embodiment of the present invention. The car wash machine WA cleans the vehicle to be cleaned CA composed of an automobile, and includes a car wash machine main body 1, rails 2 and a remote panel 7A. The car wash machine main body 1 is formed in a gate shape having two left and right opposing stand portions 90 and a ceiling portion 91 connecting the upper ends of the stand portions 90.

  A pair of left and right rails 2 are provided on the ground G, and wheels 3 provided on the bottom surface of the stand portion 90 are arranged on the rail 2. As a result, the car wash machine body 1 stands on the rail 2, travels on the rail 2 by driving of a travel motor (not shown), and relatively moves back and forth with respect to the vehicle CA to be cleaned.

  The remote panel 7A is arranged on the approach path S of the car wash machine body 1. The vehicle to be cleaned CA stops in front of the remote panel 7A, and the user sets car wash conditions by operating the remote panel 7A from within the vehicle to be cleaned CA.

  With the buttons provided on the remote panel 7A, it is possible to set the car wash conditions with or without equipment such as front guards, fender poles, side mirrors, rear wipers, and roof carriers.

  An operation panel 7 is disposed on the front surface of one stand portion 90 of the car wash machine body 1. The operation panel 7 includes operation buttons (not shown) similar to the remote panel 7A for setting the car wash conditions.

  Shape sensors 8 and 9 are provided at the front part (entrance side) of the stand part 90 on both sides of the car wash machine body 1. The shape sensors 8 and 9 are composed of a photoelectric sensor, an ultrasonic sensor, or the like, and detect the outer surface shape of the vehicle CA to be cleaned entering the car washing machine main body 1. Thereby, the traveling range of the car wash machine main body 1 is determined.

  The car wash machine main body 1 is provided with a cleaning device 40 for cleaning the vehicle to be cleaned CA and a drying device 25 for drying the vehicle to be cleaned CA. The drying device 25 includes a blower 20 (air blowing device) that generates an air flow, and a side air blowing nozzle 22 and a top air blowing nozzle 21 are connected to the blower 20. The side blowing nozzles 22 are respectively provided at the rear end portions of the stand portion 90 and blow air toward the side surface of the vehicle CA to be cleaned. The top blowing nozzle 21 is provided at the rear portion of the ceiling portion 91 and blows air toward the upper surface of the vehicle CA to be cleaned. The blower 20 may be a blower fan.

  The cleaning device 40 includes a side cleaning unit 12 provided in each stand 90 so as to extend in the vertical direction, and a top cleaning unit 11 provided in the ceiling 91 so as to extend in the left-right direction. Each of the side cleaning unit 12 and the top cleaning unit 11 is provided with a plurality of injection nozzles 55 that inject a fine particle cleaning liquid.

  The side cleaning unit 12 is guided in the left-right direction by a guide unit (not shown) provided in the stand unit 90. Thereby, the side washing | cleaning part 12 is provided so that proximity to the to-be-cleaned vehicle CA is possible. The top cleaning part 11 is guided in the vertical direction by a guide part (not shown) provided on the ceiling part 91. Thereby, the top washing | cleaning part 11 is provided so that proximity to the to-be-cleaned vehicle CA is possible.

  FIG. 3 shows a schematic configuration diagram of the cleaning device 40. Although the drawing shows the connection state with respect to one injection nozzle 55, the same connection is made with respect to the other injection nozzles 55. The injection nozzle 55 (second injection nozzle) opens an injection port 56 (second injection port) at the front end, and opens an air inflow port 57a at the rear end. The blower 20 (see FIG. 2) is connected to the inflow port 57a through a duct hose 38 connected to the side cleaning unit 12 and the top cleaning unit 11 (see FIG. 2). In addition, the path | route connected to the side ventilation nozzle 22 and the top ventilation nozzle 21 from the blower 20, and the path | route connected to the side washing | cleaning part 12 and the top washing | cleaning part 11 can be switched.

  An injection nozzle 45 (first injection nozzle) is disposed inside the injection nozzle 55. The injection nozzle 45 is connected to the compressor 43 via a pipe 41. The pipe 41 is branched into a pipe 41a and a pipe 41b. On the pipe 41a, a water tank 47 and an adjustment part 42a are provided in order from the upstream, and on the pipe 41b, an air tank 48 and an adjustment part 42b are provided in order from the upstream. The water tank 47 stores water as the cleaning medium W. The cleaning medium W may contain a detergent, a surfactant, an alkali agent, and the like. The adjustment unit 42a and the adjustment unit 42b adjust the flow rate of the cleaning medium W and air, respectively.

  When the compressor 43 is driven, compressed air is supplied to the injection nozzle 45 through the pipe 41b, and the cleaning medium W is pumped through the pipe 41a. Thereby, the cleaning medium W of fine particles is ejected from the ejection port 46 (first ejection port). At this time, the cleaning medium W having a desired particle diameter and flow rate can be ejected from the ejection port 46 by adjusting the output of the compressor 43 and adjusting the adjusting units 42a and 42b.

  The injection nozzle 55 has an inflow port 57 a opened at the upstream end of a cylindrical interior portion 57 that houses the injection nozzle 45. The air sent from the blower 20 flows into the injection nozzle 55 through the inflow port 57a.

  On the downstream side of the interior portion 57, an acceleration portion 58 having an inner surface formed in a conical surface is provided. The accelerating unit 58 narrows the flow path downstream of the injection port 46 and accelerates the airflow flowing in from the inflow port 57a. The length and flow path diameter of the acceleration unit 58 are appropriately formed, and the cleaning medium W ejected from the ejection port 46 can be accelerated to a desired flow velocity and ejected from the ejection port 56.

  A cylindrical dispersion unit 60 is provided on the downstream side of the acceleration unit 58. The injection port 56 (second injection port) is opposed to the injection port 46 and opens at the tip of the dispersion portion 60. The axis S of the interior part 57, the acceleration part 58 and the dispersion part 60 is arranged on a straight line, and the injection ports 46 and 56 are arranged on the axis S.

  The ejection angle θ of the cleaning medium W ejected from the ejection port 56 varies depending on the length of the dispersion portion 60 in the axis S direction. That is, when the dispersion part 60 becomes shorter, the injection angle θ becomes narrower, and when the dispersion part 60 becomes longer, the injection angle θ becomes larger. For this reason, the length of the dispersion | distribution part 60 can be formed appropriately, and the washing | cleaning medium W can be injected from the injection port 56 with the desired injection angle (theta). Thereby, the number of droplets of the cleaning medium W per unit volume in front of the ejection port 56 (hereinafter referred to as “dispersion density”) can be formed to a desired dispersion density.

  In this embodiment, the axial length D1 of the accelerating portion 58 is 91 mm, and the axial length D2 of the dispersing portion 60 is 37 mm. Thereby, the acceleration part 58 is formed longer in the axial direction than the dispersion part 60. Further, the diameter D4 of the injection port 56 is formed to be 15 mm, and the inner diameter D3 of the interior portion 57 is formed to be 36 mm.

  In the car wash machine WA having the above-described configuration, the user drives to stop the vehicle to be cleaned CA in front of the remote panel 7A, and sets the car wash conditions for the vehicle to be cleaned CA from within the vehicle to be cleaned CA. When the car wash conditions are set, the car wash machine main body 1 moves in the front-rear direction, the compressor 43 and the blower 20 are driven, and the washing process by the washing device 40 is started. At this time, based on the detection results of the shape sensors 8 and 9, the injection port 56 of the injection nozzle 55 is held at a position separated from the vehicle CA to be cleaned by a predetermined distance (for example, 300 mm).

  As the compressor 43 is driven, a cleaning medium W and compressed air at a predetermined flow rate are supplied to the injection nozzle 45 via the pipe 41a and the pipe 41b. Thereby, the cleaning medium W of the droplets of fine particles is ejected from the ejection port 46 of the ejection nozzle 45.

  The cleaning medium W ejected from the ejection nozzle 45 by driving the blower 20 is guided to the front ejection port 56. At this time, since the accelerating unit 58 forms the inner surface as a conical surface and narrows the flow path, the speed of the cleaning medium W is accelerated in the accelerating unit 58. The cleaning medium W accelerated by the acceleration unit 58 flows through the dispersion unit 60 and is ejected from the ejection port 56 at a desired dispersion density as indicated by an arrow E (see FIG. 3). Thereby, the to-be-cleaned vehicle CA is cleaned.

  In the present embodiment, a high-pressure airflow is sent out from the compressor 43, and a cleaning medium W having a predetermined flow rate and compressed air having a predetermined flow rate are supplied to the injection nozzle 45. Further, a low pressure air flow is sent out from the blower 20 at a predetermined flow rate.

  As a result, a desired particle size of the fine particles is formed in the cleaning medium W ejected from the ejection port 56. Since the cleaning medium W is a fine particle, the danger of the human body can be avoided. The speed of the cleaning medium W is higher than the desired speed when the surface of the vehicle CA to be cleaned, which is 300 mm away from the injection port 56, is reached. Further, the surface pressure at the time of the surface collision of the vehicle to be cleaned CA is a predetermined value. Thereby, a desired cleaning effect can be achieved.

  When the cleaning by the top cleaning unit 11 and the side cleaning unit 12 is completed, a drying process by the drying device 25 is performed. In the drying process, the blower 20 is driven to send air from the top blowing nozzle 21 and the side blowing nozzle 22 to dry the vehicle CA to be cleaned.

  According to the present embodiment, the injection nozzle 55 (second injection nozzle) includes the injection nozzle 45 (first injection nozzle) having the injection port 46 (first injection port), and the blower 20 (blower) is provided at one end. Connected. Further, the inner surface of the injection nozzle 55 arranged downstream of the injection port 46 has a conical surface accelerating portion 58 and a cylindrical dispersion portion 60 that opens downstream of the acceleration portion 58 and opens the injection port 56 (second injection port). And have.

  For this reason, the cleaning medium W of fine particles having a desired particle diameter ejected from the ejection port 46 is accelerated by the acceleration unit 58 by supplying a low-pressure air flow from the blower 20. Further, the cleaning medium W is ejected from the ejection port 56 by the dispersion unit 60 at a predetermined ejection angle θ. As a result, a high-speed cleaning medium W having a desired particle size collides with the cleaning surface at a desired surface pressure and flow rate. Therefore, the cleaning power can be improved. High-pressure compressed air is used to obtain a cleaning medium W having a desired particle size and flow rate, and the high-speed cleaning medium W is jetted by the low-pressure blower 20 and the acceleration unit 58. For this reason, since the danger of a human body is avoided and a large amount of high-pressure compressed air is not required, the cleaning cost can be reduced.

  Further, since the accelerating unit 58 is longer in the axial direction than the dispersing unit 60, the cleaning medium W can be sufficiently accelerated.

  In the present embodiment, fine particles of ice may be formed in the injection nozzle 45 by a predetermined method, and the cleaning medium W formed of ice may be injected from the injection nozzle 55. Thereby, the adhesion of the surface of the vehicle CA to be cleaned can be increased and the cleaning power can be further improved. Note that fine ice particles may be generated in advance and supplied to the spray nozzle 46. At this time, a granular cleaning medium W (for example, granular detergent) other than ice may be supplied to the injection nozzle 46.

  Further, the vehicle to be cleaned CA is cleaned by the cleaning device 40 mounted on the car wash machine WA, but is not limited thereto. For example, tableware, medical instruments, fresh food, electronic parts, etc. may be washed. Further, the cleaning device 40 may be formed to be portable. At this time, vehicles to be cleaned other than automobiles (railways, two-wheeled vehicles, airplanes, ships, etc.) and buildings (buildings, roads, tunnels, etc.) may be washed.

  According to the present invention, it can be used for a washing apparatus and a car wash machine.

DESCRIPTION OF SYMBOLS 1 Car wash machine body 2 Rail 3 Wheel 4 Top washing part 5 Side washing part 7 Operation panel 11 Top washing part 12 Side washing part 20 Blower (blower)
21 Top blowing nozzle 22 Side blowing nozzle 25 Drying device 38 Duct hose 40 Cleaning device 41 Pipe 41a, 41b Pipe 42a, 42b Adjustment unit 43 Compressor 45 Injection nozzle (first injection nozzle)
46 injection port (first injection port)
47 Water tank 48 Air tank 49 Cooling section 55 Injection nozzle (second injection nozzle)
56 injection port (second injection port)
57 interior part 57a inflow port 58 acceleration part 60 dispersion part 90 stand part 91 ceiling part E injection direction S axis CA vehicle to be cleaned W cleaning medium WA car wash machine

Claims (3)

  A first injection nozzle that mixes the compressed air and the cleaning medium and injects the fine cleaning medium from the first injection port, and a second injection port that includes the first injection nozzle and faces the first injection port and blows air A second injection nozzle provided with an air inlet connected to the apparatus, and the second injection nozzle forms an inner surface in a conical surface downstream of the first injection port and narrows the flow path, and A cleaning apparatus, comprising: a cylindrical dispersion portion disposed downstream of the acceleration portion and opening the second injection port.   The cleaning apparatus according to claim 1, wherein the acceleration unit is longer in the axial direction than the dispersion unit.   A car wash machine comprising the washing apparatus according to claim 1 or 2, wherein a surface of a vehicle to be washed is washed by the washing apparatus.

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