JP2006224844A - Car washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable an angle at which the jetting stream of a foamy scale remover being jetted out from a nozzle is widened into a fan shape to be made larger, to enable the foamy scale remover to be made into a foamy state having less liquid section by making the foam size smaller, and to increase the scale treating effect in a car washing machine equipped with the nozzle which jets the foamy scale remover to the car body surfaces of a vehicle. <P>SOLUTION: The nozzle 12 has a discharging section 32 for which a slit-like jetting port 34 for jetting the foamy scale remover while widening it into the fan shape is provided. On the discharging section 32, a net 35 for expanding the widening of the fan shape of the foamy treating agent which is jetted from the jetting port 34 is placed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a car wash machine provided with a nozzle for injecting a foam treatment agent for processing a vehicle body surface of a vehicle.

Conventionally, an ejector (first ejector) that mixes water and a processing agent (scale removal agent) to generate processing agent mixed water, and the processing agent mixed water and air are mixed to generate a foam processing agent. A foam treatment device comprising a gas-liquid mixer (second ejector) produces a foam treatment agent, and the foam treatment agent is sprayed from the spray nozzle toward the vehicle body surface to treat the surface of the vehicle body (descale removal). A car wash machine that performs processing is known (see, for example, Patent Document 1 below).
JP-A-60-121156.

By the way, in the car wash machine provided with the processing means of the vehicle body surface by the foamy processing agent as disclosed in Patent Document 1, in order to improve the processing effect,
(1) Increasing the spreading angle of the fan-shaped foam jet sprayed from the nozzles,
(2) Making the foam particles of the foam treatment agent sprayed from the nozzle fine to make it a foam with less liquid content,
Is required.

  However, in the technique disclosed in Patent Document 1, no technical means for satisfying the request is taken.

  The present invention has been made in view of such circumstances, and the angle at which the foam treatment agent spreads in a fan shape can be increased, and the foam treatment agent ejected from the nozzle has fine liquid particles and a small liquid content. An object of the present invention is to provide a novel car wash machine that can be made into a foam.

In order to achieve the above-mentioned object, the invention according to claim 1 is a car wash machine provided with a nozzle for injecting a foam treatment agent generated by a foam generation device on a vehicle body surface of a vehicle to be washed.
The nozzle has a discharge part provided with a slit-like injection port for spreading and injecting the foam treatment agent into a fan shape, and the discharge part has a fan shape of the foam treatment agent to be injected from the injection port. It is characterized in that it is covered with a net for increasing the angle of spread.

  In order to achieve the above object, the invention according to claim 2 is characterized in that the exit end of the slit-shaped injection port is arcuate.

  According to the invention of each claim, by covering the slit injection port of the nozzle with a net, the angle at which the injection flow spreads in a fan shape can be increased, and the foam-like treatment agent ejected from the nozzle is: The foam particles can be made fine to form a foam with few liquid portions, and the treatment effect of the foam treatment agent can be enhanced.

  In addition, according to the second aspect of the present invention, it is possible to reduce uneven dispersion of the foam treatment agent in the jet flow pattern.

  Embodiments of the present invention will be specifically described below based on the embodiments of the present invention illustrated in the accompanying drawings.

  1 is a front view of a car wash machine equipped with a descaling agent spraying device, FIG. 2 is a side view of the car wash machine, FIG. 3 is a piping system diagram of the descaling agent spraying device, and FIG. 4 is a side view of the nozzle. 5 is a cross-sectional view taken along the line 6-6 of FIG. 4, and FIG. 7 is a cross-sectional view taken along the line 7-7 of FIG.

  1 and 2, a car wash machine main body 1 has a gate-shaped frame 2, and a pair of left and right drive wheels 4, 4 and a pair of left and right driven wheels 5 provided on the frame 2 and driven by a traveling motor 3. , 5 reciprocally travels on a pair of left and right traveling rails 6, 6 laid on the ground.

  The frame 2 is provided with a conventionally known car wash device, that is, a top brush 7 for cleaning the upper surface of the vehicle V, a pair of left and right side brushes 8 and 8 for cleaning the side surface of the vehicle V, and an upper surface of the vehicle V. And a pair of left and right side nozzles 10 and 10 for drying the side surface of the vehicle V, and further, a descaling agent spraying device 11 according to the present invention and a washing water jet device (not shown) are provided. Yes.

  Next, the configuration of the scale remover spraying device 11 according to the present invention will be described.

  As shown in FIG. 1, the descaling agent spraying device 11 is provided on the upper part of the frame 2, and a pair of nozzles 12, 12 for spraying the foam descaling agent on the upper surface of the vehicle V to be washed, and the frame 2. And a pair of left and right nozzles 12 and 12 for spraying foam scale remover on the side surface of the vehicle V to be washed. Each nozzle 12 is supported by a frame 2. It is attached to each of the cylinders 13.

  Next, with reference to FIG. 3, the configuration of the scale remover spraying device 11 for supplying the foam scale remover to the nozzles 12 will be described in detail. The plurality of support cylinders 13 to which the nozzles 12 are attached are ... Is connected to a gas-liquid mixer 14. An air source 16 installed in the vicinity of the car wash machine main body 1 is connected to the gas-liquid mixer 14 via an electromagnetic valve 15.

  In addition, an ejector 17 is connected to the gas-liquid mixture 14, and a water supply pump 20 in a water tank 19 installed in the vicinity of the car wash machine body 1 is connected to the ejector 17 via another electromagnetic valve 18. ing.

  Further, a scale remover tank 22 is connected to the ejector 17 via a flow rate regulator 21.

  If the water supply pump 20 is operated and the solenoid valve 15 and the other solenoid valve 18 are opened in order to operate the descaling agent spraying device 11 configured as described above, the desiccant tank 22 in the descaling agent tank 22 is supplied to the ejector 17. The descaling agent is sucked, and the descaling agent and water from the water supply pump 20 are mixed and sent to the gas-liquid mixer 14. In the gas-liquid mixer 14, the descaling agent mixed with water and the air from the air source 16 are mixed, and the descaling agent becomes foamed. This foamy descaling agent is sprayed from the nozzles 12.

  The electromagnetic valve 15, the other electromagnetic valve 18, the ejector 17, and the gas-liquid mixer 14 cooperate to constitute a foam generating apparatus according to the present invention.

  Next, the structure of the nozzle 12 will be described with reference to FIGS.

  The nozzle 12 has, on its base end 12a side, a hexagonal bolt-shaped attachment portion 31 formed with a male screw s for attachment to the support cylinder 13, and a discharge portion 32 on its distal end 12b side. ing. The nozzle 12 is provided with an inflow path 33 from the base end side 12a along the central axis thereof, and the tip 33a of the inflow path 33 is formed in a conical shape.

  The discharge portion 32 is formed in a U-shaped cross section from a cylindrical base end portion 32a and a hemispherical tip portion 32b, and a slit-like injection port 34 is provided in the hemispherical tip portion 32b. The bottom surface 34b of the injection port 34 coincides with the boundary line between the hemispherical tip portion 32b and the cylindrical base end portion 32a.

  Thus, the slit-shaped injection port 34 is provided in the hemispherical tip portion 32b, so that the outlet end 34a is formed in an arc shape.

  The discharge part 32 is covered with a stainless steel net 35. The net 35 straddles the hemispherical tip portion 32b and the columnar base end portion 32a of the discharge portion 32 and is in close contact with them, and is fastened to the outer periphery of the columnar base end portion 32a by the tightening ring 36. It is fastened and fixed so as not to be detached from the discharge part 32.

  Next, the operation of this embodiment will be described.

  When the water supply pump 20 is operated to open the solenoid valve 15 and the other solenoid valve 18, the foam scale remover is injected from the nozzles 12. Here, the car wash machine main body 1 travels from the standby position (start position) shown in the solid line position in FIG. 2, that is, from the left end of the traveling rails 6 and 6 to the right, or from the turn-back position shown in the chain line position in FIG. If going backward, that is, traveling from the right end of the traveling rails 6 and 6 to the left, the foamy scale removing agent can be sprayed on the upper surface and both side surfaces of the vehicle V.

  By the way, as shown in FIG. 1, the foam scale remover sprayed from the slit-shaped spray ports 34 of the respective nozzles 12 spreads in a fan shape, and the spread angle θ is a mesh that covers the discharge portion 32 of the nozzle 12. 35. That is, when the foam descaling agent flowing through the inflow path 33 passes through the injection port 34 and passes through the mesh 34, a part of the foam hits the line portion of the mesh 34 and rebounds to generate an unsteady flow. When the unsteady flow collides with the steady flow and generates a component that disperses outward, and thereby the fan-shaped spread angle θ of the foam scale remover sprayed from the spray port 34 does not cover the net 35. Than can be expanded.

  Moreover, since the foam scale remover sprayed from the nozzle 12 is diffused by the mesh 35, the foam particles can be made finer and less foamy than when the mesh 35 is not covered.

  Furthermore, since the foam scale remover sprayed from the nozzle 12 is diffused by the mesh 35, the foam scale remover is more dispersed in the spray patterns P1 to P2 (see FIG. 1) than when the mesh 35 is not covered. Less unevenness.

  As mentioned above, although the Example of this invention was described, this invention is not limited to the Example, A various Example is possible within the scope of the present invention.

  For example, in the said Example, the scale removal agent was used as a processing agent, However, It can implement to what uses other processing agents, such as a detergent. The shape of the outlet end 34a of the injection port 34 may be other than an arc shape as long as it has the same action.

Front view of a car wash equipped with a descaling agent spraying device 2 is a side view of the car wash machine. Piping system diagram of scale treatment agent spraying device Nozzle side view 5 arrow view of FIG. 6-6 sectional view of FIG. Sectional view along line 7-7 in FIG.

Explanation of symbols

12 .... Nozzle 32 ... Discharge section 33 ... Inlet channel 34 ... ····································· …… V ・ ・ ・ ・ ・ ・ ・ ・ Vehicle

Claims (2)

In a car wash machine equipped with a nozzle for injecting a foam-like treatment agent produced by a foam production device on the body surface of a vehicle to be washed,
The nozzle has a discharge part provided with a slit-like injection port for spreading and injecting the foam treatment agent into a fan shape, and the discharge part has a fan shape of the foam treatment agent to be injected from the injection port. A car washing machine, characterized by being covered with a net for increasing the angle of spread. The car wash machine according to claim 1, wherein an outlet end of the slit-shaped injection port has an arc shape.

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