JP2019198828A - Washing device - Google Patents

Abstract

To provide a washing device which efficiently generates a fine foam-like liquid agent in a limited region and scatters evenly to an object to be washed, and has a foaming function to improve fixability to an object to be washed.SOLUTION: A washing device includes: a mixer 40 foaming by air a washing liquid obtained by mixing washing water and a liquid agent in a liquid feed pipe conduit 22 from a feed water tank 16 to a scattering pipe 15, and a foaming pipe conduit 41 foaming a foamed detergent foamed with the mixer 40. The foaming pipe conduit 41 comprises a cylindrical body in which a water inlet 41a and a water outlet 41b are opened, and forms a turbulence generation part for generating flow channel resistance in the inside by mounting a plurality of rivet-like bodies 42 from the outer peripheral surface of the cylindrical body to the inside.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a cleaning device that sprays a foamed cleaning agent toward a cleaning surface.

  In this type of cleaning device, a liquid agent is mixed in cleaning water fed from a water supply tank, the cleaning liquid is bubbled with air, and a foamed liquid agent is sprayed from a foam spraying nozzle to an object to be cleaned (for example, a vehicle). . The cleaning liquid foamed with air is supplied to the foam spray nozzle through the corrugated tube, and fine bubbles are formed while increasing the degree of foaming while passing through the corrugated tube. However, the cleaning liquid generated by the introduction of air causes turbulent flow in the corrugated tube and causes the corrugated tube to pulsate, whereby the foam spraying from the foam spraying nozzle becomes intermittent and irregular. Therefore, when the foamed liquid agent is sprayed over the entire surface of the object to be cleaned while the object to be cleaned and the foam spray nozzle are moved relative to each other, scattering unevenness occurs. Such scattering unevenness appears conspicuously when the relative movement speed is high, so that there is a problem that the relative movement speed needs to be low and the cleaning time becomes long.

  As a countermeasure, it is conceivable that air is introduced near the foam spray nozzle to foam the cleaning liquid, but since the foaming effect in the corrugated tube cannot be obtained, the foaming degree is low and the volume feeling of the foam is weakened. Fixability to the cleaning body is lowered and a visual show effect cannot be obtained.

JP 2002-46582 A

  The present invention proposes a cleaning apparatus having a foaming function that efficiently generates fine foam liquid in a limited range and sprays it uniformly on the object to be cleaned and improves the fixability to the object to be cleaned. There is.

  The present invention is a cleaning device having a function of mixing a liquid agent with cleaning water fed from a water supply tank, foaming the cleaning liquid, and spraying the cleaning liquid from a spray pipe toward an object to be cleaned. And a foam generating part for foaming a foaming detergent foamed by the foaming part, and a foam generating part for foaming the foaming detergent foamed in the foaming part. The generating unit is a turbulent flow generating unit that forms a cylindrical body having an inlet and a water outlet, and has a plurality of rods attached inward from the outer peripheral surface of the cylindrical body to generate flow resistance. Formed.

  The turbulent flow generation unit is configured by attaching a plurality of hooks at equal intervals along the circumferential direction of the cylindrical body and attaching the hooks in a zigzag manner along the axial direction. A cylindrical body may change the attachment density of a bowl-shaped body by the water inlet side and the water outlet side.

  The foam generating unit in the cleaning device of the present invention has a simple configuration in which a plurality of rod-shaped bodies are inserted inward from the outer peripheral surface of the cylindrical body, and a turbulent flow generating section can be formed therein, which is effective. By enabling the effective foaming, even if a sufficient pipe length cannot be obtained, a foam detergent having a high fixing power and a volume feeling can be sprayed on the object to be cleaned.

  In addition, the bubble generating unit in the cleaning device suppresses pulsation due to air mixing and enables regular foam spraying, so even if the relative movement speed between the cleaning target and the cleaning device is increased, Foam spraying can be performed uniformly and cleaning time can be shortened.

It is a front view which shows the car wash apparatus of this invention. It is a top view of the apparatus. It is explanatory drawing which shows the pipe line structure of the apparatus. It is explanatory drawing which expanded the foaming pipe line (foam formation part). It is sectional drawing of a foaming pipe line (foam formation part). It is a block diagram which shows the control system of the apparatus.

Hereinafter, an embodiment of the present invention will be described by taking as an example a car wash device for spraying foam detergent on a vehicle body surface. FIG. 1 is a front view of the car wash apparatus, and FIG. 2 is a plan view.
Reference numeral 1 denotes a car wash body formed in a gate shape so as to straddle the car body, and travels back and forth along the rails 3 and 3 by rotationally driving the wheels 2 and 2 by the traveling motors 4 and 4 capable of rotating forward and backward. . A rotary encoder 5 is connected to the output shaft of the motor 4 and outputs a pulse signal for each unit angle rotation while detecting the rotation direction of the motor 4 to give a traveling position of the car wash machine body 1.

  Reference numeral 6 denotes a vehicle shape detection device for detecting the height of the upper surface of an automobile. The light detection unit 6a has a plurality of light emitting elements arranged vertically and a light receiving unit 6b which has a plurality of light receiving elements paired with the light emitting elements. The presence or absence of the automobile is detected by whether the light of each light emitting element is transmitted to or shielded from the pair of light receiving elements, and the position of the upper surface of the vehicle body is determined from the height position of the uppermost light receiving element determined to be the vehicle body detection. Is detected. An operation panel 7 is provided on the front surface of the main body 1 and performs operations such as setting a car wash course and accepting a fee.

  8 is an upper surface cleaning brush for mainly brushing the upper surface of the automobile, 9 and 9 are side surface cleaning brushes for mainly brushing the side surface of the automobile, 10 is an upper surface drying nozzle for mainly blowing the upper surface of the automobile, and 11 and 11 are mainly This is a side drying nozzle that blows the side of an automobile, and performs processing such as washing and drying of the vehicle body as the car wash machine body 1 travels back and forth. 12 to 15 are spray pipes formed in an arch shape, and spray nozzles are attached to a plurality of locations, 12 is a water pipe, 13 is a detergent pipe, 14 is a wax pipe, and 15 is a foaming detergent. The pipe is shown.

FIG. 3 is an explanatory view showing the pipe configuration of the car wash apparatus.
Reference numeral 16 denotes a water supply tank that stores water from a water source, and includes a water supply pump 17 that supplies water to the spray pipes 12 to 15. The water supply from the water supply pump 17 reaches the main body 1 via the hose 18 and is distributed and supplied to the spray pipes 12 to 15 through the water supply pipes 19 to 22. The water supply pipelines 19 to 22 are provided with solenoid valves 23 to 26, respectively, and each pipeline is opened and closed.

  A detergent conduit 28 communicating with the detergent tank 27 is connected to the water supply conduit 20 leading to the detergent pipe 13 via a mixer 29. A tube pump 30 is provided in the detergent line 28, and a fixed amount of detergent is supplied to the water supply line 20. As a result, the detergent is mixed into the washing water in the mixer 29 and sprayed from the detergent pipe 13 as a washing liquid.

  A wax pipe 31 communicating with a wax tank 30 is connected to a water supply pipe 21 leading to the wax pipe 14 via a mixer 32. A tube pump 33 is provided in the wax pipeline 31, and a fixed amount of wax agent is supplied to the water supply pipeline 21. As a result, the wax agent is mixed into the cleaning water in the mixer 32 and sprayed from the wax pipe 14 as a wax liquid agent.

  A foaming detergent pipe 35 communicating with a foaming detergent tank 34 is connected to the water supply pipe 22 leading to the foaming detergent pipe 15 via a mixer 36. A tube pump 37 is provided in the foam detergent line 35, and a fixed amount of foam detergent is supplied to the water supply line 22. An air supply line 39 communicating with the compressor 38 is connected to the water supply line 22 on the downstream side of the mixer 36 via a mixer 40. Further, the water supply pipe 22 on the downstream side of the mixer 40 is provided with a foaming pipe 41 that generates a turbulent flow in the flow of the liquid agent. As a result, a foaming liquid agent in which the foaming detergent is mixed into the washing water is generated in the mixer 36, and then in the mixer 40, the foaming liquid agent is foamed with high-pressure air from the compressor 38 to generate a foaming detergent. Finally, the foaming detergent becomes a fine foam detergent while passing through the foaming pipe 41 and is sprayed from the foaming detergent pipe 15.

  4-5 is explanatory drawing which shows the structure of the duct line 41 for foaming. FIG. 4 shows a state in which a part of the foaming conduit 41 is vertically divided in the axial direction, and FIG. 5 shows a state in which the foaming conduit 41 is rounded in the circumferential direction.

  The foaming conduit 41 is directly connected to the downstream side of the mixer 40, and has a cylindrical shape with the water inlet 41a and the water outlet 41b opened. The foaming pipe line 41 has a plurality of hooks 42 attached inward from the outer peripheral surface, and a turbulent flow generating portion that promotes foaming of the foaming detergent is formed inside the pipe line 41 by the flow path resistance. Is done. The flange 42 is screwed into a tap hole 43 opened on the outer peripheral surface of the foaming conduit 41, and is attached horizontally so that the tip of the flange 42 faces the center of the foaming conduit 41.

  The tap holes 43 are opened at equal intervals p on the virtual line parallel to the axial direction on the outer peripheral surface of the pipe 41. The virtual lines are set at 45 ° intervals in the circumferential direction, and the tap holes 43 are opened at a pitch p in each. Further, the positions of the tap holes 43 on the adjacent virtual lines are shifted by a pitch p / 2, and as a result, the tap holes 43 are staggered over the axial direction and the circumferential direction of the foaming conduit 41. The

  As a result, the hook-like body 42 attached to the tap hole 43 forms a labyrinth-like turbulent flow generating portion in the foaming conduit 41. By passing the foaming detergent generated by the mixer 40 through the foaming pipe 41, a turbulent flow is generated in the water stream, and the foamed detergent is taken out from the outlet 41 as a fine foam detergent.

  Here, although the bowl-shaped body 42 is driven at equal intervals, in order to improve the slipperiness of the foam detergent, the pitch density on the water inlet 41a side and the pitch on the water outlet 41b side are changed, and the pitch p1 is increased. The pitch p2 may be rough. Moreover, if it produces flow-path resistance in the pipe line 41, it will not be limited to a bowl-shaped body.

FIG. 6 is an explanatory diagram showing a control system of the car wash apparatus.
A control unit 44 is connected to the rotary encoder 5, the vehicle shape detection device 6, and the operation panel 7 at the input port, and is connected to the operation devices of the car wash machine body 1 and the water supply device 17 at the output port. The control unit 44 receives a car wash in the operation panel 7, detects the shape of the vehicle based on the data of the rotary encoder 5 and the vehicle shape detection device 6, and follows a sequence programmed in advance along the detected shape of the vehicle. Then, each operation device of the car wash machine main body 1 and the water supply device 17 is controlled.

Then, operation | movement of the car wash machine of this invention comprised as mentioned above is demonstrated.
As the power is turned on, the control unit 44 enters a standby state for selecting a course, and a desired car wash operation is designated on the operation panel 7. When a start is input, the car wash operation is executed. When the car wash operation is started, the car wash is executed in the following order as the car wash machine body 1 travels.

○ First Outgoing Step As the car wash machine main body 1 travels, the upper surface position data of the car is taken from the car shape detection device 6 every time the rotary encoder 5 moves a predetermined distance, and the car shape of the car to be washed is detected. . Further, brushing cleaning is performed while spraying cleaning water from the water pipe 12 and bringing the upper surface cleaning brush 8 and the side surface cleaning brush 9 and 9 into and out of contact with the vehicle based on the detected vehicle shape.

○ 1st return process With the return of the car wash machine main body 1, foam spraying for spraying the foam detergent from the foam detergent pipe 15 onto the automobile body is performed. At this time, the detergent foamed by the air becomes a foam detergent having improved foamability at the turbulent flow generating portion in the foaming pipeline 41, and the fixing power when sprayed on the vehicle body is improved and stays in the vehicle body. The state becomes longer. In addition, since foam is obtained efficiently by the foaming conduit 41, foaming by air can be performed near the foaming detergent pipe 15, and occurs when a foaming agent is supplied through a long corrugated tube or the like. The situation in which the foaming is intermittent due to the pulsation disappears, and even if the traveling speed of the car wash machine body 1 is increased by continuous foaming, the foaming can be applied to the entire vehicle body.

○ Second Outgoing Process As the car wash machine 1 travels, the upper surface cleaning brush 8 and the side surface cleaning brushes 9 and 9 are operated while spraying rinse water from the water pipe 12 and cleaning liquid from the detergent pipe 13 respectively. The car body is then brushed.

○ Second return process As the car wash machine main body 1 returns, the upper surface drying nozzle 10 and the side surface drying nozzles 11 and 11 are operated while spraying the wax liquid from the wax pipe 14 and the rinsing water from the water pipe 12, respectively. Blowing is performed by blowing high-speed wind on the body of an automobile and blowing off remaining water droplets.

  Thus, car shape detection and brushing washing are performed in the first forward process, foam spraying is performed in the first backward process, foam rinsing and detergent brushing washing is performed in the second forward process, and wax dispersion and drying are performed in the second backward process. The operation is complete. In addition, the form of the car wash machine is not limited to the above-described configuration, and any of a conveyor type that conveys the automobile, a relative movement type that moves the automobile and the car wash machine main body, and a high pressure washing type that does not have a brush or a blow may be used. .

  The key point of the present invention lies in the configuration of the foam pipe 41 that efficiently generates the foam liquid. By using this foaming pipe line, the object to be cleaned is not limited to automobiles, and it is possible to wash trains, heavy machinery and the like. Especially when a foam spraying device is fixed at a fixed point and the train is moved at a minimum speed like a train, it is more effective by the foam pipeline of the present invention that can spray foam continuously. It acts on.

DESCRIPTION OF SYMBOLS 1 Car wash machine body 12 Water pipe 13 Detergent pipe 14 Wax pipe 15 Foam detergent pipe 40 Mixer 41 Foam pipe line 42 Sponge body 43 Tap hole

Claims (3)

A cleaning device having a function of mixing a liquid agent with cleaning water fed from a water supply tank, foaming the cleaning liquid, and spraying the cleaning liquid from a spray pipe toward an object to be cleaned,
A foaming part for foaming a foaming detergent foamed in the foaming part by foaming a cleaning liquid mixed with cleaning water and a liquid by air in a liquid supply line extending from the water supply tank to a spray pipe, The foam generating unit is formed into a cylindrical body having an inlet and a water outlet, and a plurality of rod-like bodies are attached inward from the outer peripheral surface of the cylindrical body to provide flow path resistance. A cleaning apparatus characterized by forming a turbulent flow generating portion.
The turbulent flow generating portion is configured by attaching a plurality of rod-like bodies at equal intervals along the circumferential direction of the cylindrical body and attaching a plurality of rod-like bodies zigzag along the axial direction. The cleaning apparatus according to claim 1, wherein:
The cleaning apparatus according to claim 1 or 2, wherein the cylindrical body has different attachment densities of the bowl-shaped bodies on the water inlet side and the water outlet side.

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