JP2008120328A - Jetting device for washing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an economical jetting tool for washing capable of reducing cost for washing such as car washing, by improving a jet device of washing fluid mainly using water in a car washing device to save the washing fluid without impairing car washing performance. <P>SOLUTION: The jetting nozzle device comprises a switch valve 21 switching a first flow-in state taking a cleanser water sent through a first supply hose 22 into a single liquid transporting passage 50 of a grip gun element 19 and a second flow-in state taking tap water sent through a second supplying hose 23 into the liquid transporting passage 50; and a nozzle 47 jetting fluid flowing into the liquid transporting passage 50. An air supplying portion 52 mixing high pressure air is equipped at a part 49 near the nozzle 47 in the liquid transporting path 50. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cleaning jetting device such as a nozzle for jetting a cleaning liquid such as water or soapy water, and in particular, it is suitably used for a car washing device or the like often installed at a gas station or a self-car wash. The present invention relates to a cleaning jet device.

  2. Description of the Related Art Conventionally, automatic car wash machines and manual car wash apparatuses have been known as those having this type of washing jetting apparatus. As an automatic car wash machine, as disclosed in Patent Document 1, there is known an automatic car wash machine provided with a gate-type car wash device that can reciprocate by rolling on a pair of rails laid on the ground. The car wash device has a pair of left and right rotating brushes, an air blow mechanism, and the like. The car is stopped at a predetermined position between a pair of rails, and the washing brush or rinsing water is sprinkled on the car to rotate the rotating brush. The vehicle is automatically washed and dried by reciprocating in the longitudinal direction of the vehicle. In general, there are many examples of such an automatic car wash machine installed in a gas station or the like.

  Further, as disclosed in Patent Document 2, as a manual type car washing device, a device including a cleaning tool using tap water and a drying tool using an air blow by a blower is known. The means for washing the car by human work is clearly smaller than the case where an automatic car washer is installed, and even if the car user or the gas station clerk performs the car washing work, it is less than the automatic type. It is very popular because it has little damage to the paint and can be washed in detail, and even in stores equipped with automatic car wash machines, there are many customers who ask for manual car washing. In this case, the car wash fee when you ask the store will be higher than that of the automatic car wash machine, but because the user can select the advantage that it will be free, the number of people who want to install a manual car wash device has increased Yes.

In both of these automatic and manual car washing apparatuses, the first dirt removal or rinsing after washing is performed by jetting water. The latter manual type car wash apparatus is provided with a mechanism for rotating the brush by the momentum of the water jet, but the main point is that it uses water jet. In car washing equipment, it is done by using a large amount of water for removing dirt or rinsing, but it is a chronic condition that the cost of using a lot of water is high regardless of whether it is automatic or manual, and the profit rate is not good. There is a problem. This problem cannot be overlooked, especially at gas stations where car washing is often the next important service after refueling.
Japanese Patent Laid-Open No. 9-240439 JP 2004-231055 A

  It is an object of the present invention to improve a cleaning liquid jetting apparatus, which mainly uses water in a car washing apparatus, so that the washing liquid can be saved without degrading the car washing ability, thereby reducing the cost for washing the car washing etc. The development and provision of a typical cleaning spray device.

  According to the first aspect of the present invention, in the cleaning jet device, the first inflow state in which the first cleaning liquid sent to the first inlet port 21a flows to the liquid transfer path 50 following the output port 21c, and the second inlet port 21b A switching valve 21 for switching between a second inflow state in which the second cleaning liquid sent to the liquid flow path 50 flows to the liquid transfer path 50, and an ejection portion 47 for ejecting the cleaning liquid flowing to the liquid transfer path 50. An air supply unit 52 for mixing air is provided in a vicinity 49 of the ejection unit 47 in the transfer path 50.

  According to a second aspect of the present invention, there is provided the cleaning jet device according to the first aspect, wherein the cleaning liquid flowing in the liquid transfer path 50 is allowed to be transferred to the air supply unit 52, and the air supply unit It has the opening-and-closing valve 48A which switches the closed state which interrupts | blocks the transfer to 52, and the said ejection part 47, and has the grip gun body 19 which can be hold | gripped with a finger.

  According to a third aspect of the present invention, in the cleaning jet device according to the second aspect, the on-off valve 48A is configured as a variable flow rate type.

  According to a fourth aspect of the present invention, in the cleaning jet device according to the second or third aspect, the switching valve 21 and the grip gun body 19 are connected via a pipe body 60 forming the liquid transfer path 50. In addition, the length of the tubular body 60 is suitable for holding the grip gun body 19 with one hand to eject the cleaning liquid and supporting the switching valve 21 with the other hand so that the switching operation can be performed. It is characterized by being set to a value.

  According to a fifth aspect of the present invention, in the cleaning jet device according to any one of the first to fourth aspects, an air path e capable of supplying air to the air supply unit 52 is provided with air to the air supply unit 52. Is provided with an air on-off valve 48B for switching between an open state for supplying air and a closed state for shutting off air supply.

  The invention according to claim 6 is the car wash wherein the first cleaning liquid is set to detergent water and the second cleaning liquid is set to tap water in the cleaning jet apparatus according to any one of claims 1 to 5. An engaging part 47a for detachably mounting a foaming tool 63 on the ejection part 47 for discharging the detergent water ejected from the ejection part 47 in a foamed state is provided for the ejection part 47. It is characterized by being formed.

  The invention according to claim 7 is the cleaning ejection device according to any one of claims 1 to 6, wherein the vicinity 49 has a cross-sectional area larger than a cross-sectional area of the liquid transfer path 50. It is formed in the mixing chamber 49A.

  According to an eighth aspect of the present invention, in the ejection device for cleaning according to any one of the first to seventh aspects, the air supply unit 52 is configured such that the direction of the air discharged therefrom intersects the flow of the cleaning liquid. In addition, the lower side of the air flow direction is inclined to the lower side of the cleaning liquid flow direction.

  According to a ninth aspect of the present invention, in the cleaning jet device according to the eighth aspect, the air supply section 52 is configured such that the included angle between the air flow and the cleaning liquid flow is 45 degrees or substantially 45 degrees. It is characterized by being comprised.

  The invention according to claim 10 is the check device for preventing the backflow of the cleaning liquid from the liquid transfer path 50 in the air supply unit 52 in the cleaning jet device according to any one of the first to ninth aspects. A valve 58 is provided.

  The invention according to claim 11 is characterized in that, in the cleaning ejection device according to any one of claims 1 to 10, the ejection part 47 has a nozzle for ejecting a cleaning liquid. To do.

  According to the first aspect of the present invention, the details will be described in the section of the embodiment. However, when the air is mixed into the cleaning liquid and ejected, the power of the ejection is remarkably increased. The amount of the cleaning liquid per unit time when the same ejection power is emitted can be clearly reduced. For example, the amount of water required to remove the same predetermined dirt from each other is less for the air-mixed structure according to the present invention, and the water required for washing the car can be saved. The amount can be reduced and the cost can be reduced. And since it is supposed that one of the two kinds of cleaning liquids can be arbitrarily selected and provided by providing the switching valve, it is necessary to prepare a total of two ejection devices for each of the first and second cleaning liquids. In addition, it is possible to use only one ejection device and to mix air into each cleaning liquid.

  As a result, it is possible to save cleaning liquid without degrading the washing capacity of the washing liquid jetting device that mainly uses water in the car washing device, although it can be simply modified to mix air immediately before the washing liquid jetting portion. An economical cleaning jetting device that can reduce the cost of washing cars, etc., while being convenient for jetting two types of cleaning liquids separately, it is easy to use as a single device Can be provided as reasonable. In addition, it is also possible to provide a device for selecting and ejecting one of three or more cleaning liquids by providing three or more liquid transfer means and a switching valve having a structure for selecting one of the three or more. Is possible.

  If a cleaning gun is provided by providing a grip gun body that can be gripped with fingers as in claim 2, it becomes easier to use for car washing and the like, and the on-off valve is provided with a flow rate as in claim 3. If it is a variable type, for example, it will be possible to adjust the flow rate per unit time, such as sprinkling water with a large amount and flowing a small amount of water for rinsing, and more convenient cleaning. It can be used as an ejection device.

  As in claim 4, if the grip gun body is gripped with one hand and the switching valve is supported with the other hand, the length of the tube by a flexible hose or the like that connects both is set, The advantage that it can be operated more easily by two-handed operation is obtained. Further, if an on-off valve for air that switches between an air supply state and a shut-off state is provided as in claim 5, it is possible to select whether or not there is air to be mixed with the cleaning liquid. There is.

  According to the invention of claim 6, it is convenient to use separately the water required for car washing and the detergent water, and when jetting the detergent water, the washing effect can be further improved by the foamed detergent water. There exists an advantage which can select the means to attach a whisk to an ejection part.

  According to the seventh aspect of the invention, the air mixing chamber, which is the liquid path of the portion where air is mixed, functions as an expansion chamber. The cleaning liquid and air can be ejected in a stable mixed state in which they are well mixed. Therefore, pulsation due to non-uniform mixing and unstable scattering of the cleaning liquid are avoided, and the cleaning liquid and air are mixed well to obtain a stable ejection power. A cleaning jetting device that facilitates spraying of the cleaning liquid can be obtained.

  According to the invention of claim 8, the flow of air discharged from the air supply unit does not hinder the flow of the cleaning liquid, and a synergistic effect of increasing the momentum can be exhibited, and by intersecting at an angle with each other It is possible to provide a high-efficiency cleaning jetting device capable of producing a good stirring action and mixing the cleaning liquid and air well. In this case, as in claim 9, if the crossing angle between the cleaning liquid and the air is 45 degrees, the mixing can be performed most efficiently. In addition, as described in claim 10, if a check valve is provided in the air supply unit, it is possible to reliably prevent the backflow of the cleaning liquid into the air path when air is not used or when the air is at a low pressure. In addition, if the ejection portion is a nozzle as in the eleventh aspect, the cleaning liquid or a mixed fluid of this and air can be ejected more vigorously.

  Hereinafter, embodiments of a cleaning jet device according to the present invention will be described with reference to the drawings, with respect to an example applied to a car wash support facility of a gas station. 1-4 is a figure which shows each part of a car wash support facility, and FIG.2, 4 has drawn only the structure for car wash. 5 is a structural view of a rolling hook, FIG. 6 is an overall front view of a car wash support facility, FIG. 7 is a block diagram showing a functional system of the car wash support device, and FIGS. 8 to 10 are views showing a car wash nozzle device and an injection grip. FIG. 11 is an operation diagram showing a car wash situation by two-person work, and FIG. 12 is a relationship graph between air pressure and water saving rate at the time of air water ejection.

[Example 1]
A car wash support facility A is shown in FIGS. This car wash support facility A, which can also be called an artificial car wash facility, is composed of a car wash structure K and a car wash support device C, and functions as a semi-automatic semi-manual washing device, for example, disposed at one corner of a gas station. The The car wash support facility A includes a car wash support device C placed on the side of the car wash port 11, a car wash nozzle device 20 extending from the car wash support device C via three supply hoses 22 to 24, and a car wash. A moving rail 7 which is cantilevered above the port 11 and extends in the horizontal direction (lateral direction) to form a car wash space S, and is supported movably by the supply rails 22-24. It comprises a plurality of piece members 10 and the like.

  First, the car wash structure K is composed of two vertical struts 1 erected from the ground G along the fire pit W, and upper and lower portions connecting the upper and lower ends of the vertical struts 1 in the middle between the upper and lower sides. A pair of connecting beams 2, 2, four horizontal struts 3 extending laterally from the vertical struts 1, 1 and the lower connecting beam 2, and one front connecting beam connecting the front ends of the horizontal struts 2. 4, a pair of suspension rods 5, 5 that connect the upper end of each vertical column 1 and the tip of the horizontal column 2, and a plurality of (four) reinforcing rods (which may be wires) installed obliquely. 6 and a pair of left and right moving rails 7 and 7 fixed to the lower side of the four horizontal struts 2 so as to straddle the four horizontal struts 2. In addition, although illustration is abbreviate | omitted, you may equip with the panel material for advertisement (decoration) fixed to the horizontal support | pillar 3, the front end connection beam 4, etc. FIG.

  As shown in FIGS. 1 to 4, each vertical column 1 is embedded in the ground with its lower end integrated with a weight 1 </ b> W such as concrete, and the upper and lower intermediate portions are substantially U-shaped stays 8. And through bolts 9 are connected to the upper end portion of the fire pit W, and are supported upright on the ground G and the fire wall W with sufficient strength without fear of falling and deforming. In addition, when there is no wall such as a fire wall W nearby and it is supported by being buried only in the ground G, this can be dealt with by increasing the depth of the embedded portion of the vertical column 1 or increasing the weight. Is possible.

  As shown in FIG. 2 and FIG. 5, the moving rail 7 has a pair of left and right cross-sections substantially I-shaped (cross-section) that are hung by a small distance (preferably along the width direction of the vehicle at about 2 to 3 m). May be an H-shaped section steel or an inverted T-shaped section steel), and the straight section steel 7A. Although illustration is omitted, detachable stoppers that prevent the rolling hooks 10 from falling off are provided at both ends of each of the shape steels 7A and 7A. A car wash space S is formed between these moving rails 7 and 7 and a car wash port 11 formed below the car wash port 11 below them. Each moving rail 7 has a plurality of rolling hooks (piece members) 10 supported so as to be freely movable along the longitudinal direction thereof. 10 is inserted and supported in the middle part of the hose longitudinal direction of each of the pair of supply hoses 22 to 24 in three types described later.

  As shown in FIG. 5, the rolling hook 10 includes a pair of left and right and front and rear four rollers 15 that can roll and move on the lower flange 7 f on each of the left and right sides of the web 7 w of the H-section steel 7 A, and each supply. The rolling frame 17 includes a hose support portion 16 that inserts and supports the longitudinal intermediate portions of the hoses 22 to 24. The hose support portion 16 is supported on the rolling frame 17 so as to be rotatable around the vertical axis, and the supply hoses 22 to 24 are inserted and locked. Therefore, if each supply hose 22-24 is pulled, the rolling hook 10 will roll with respect to the moving rail 7 according to it.

  The moving rail 7 is suspended and supported at a height (3.0 to 3.5 m above the ground) so that it can be used even in vehicles with a certain height (vans, small trucks, etc.). A car wash space S is formed between the upper and lower sides of the car wash port 11. The car wash port 11 is formed as a site area that is distinguished from the surrounding ground so as to have a rectangular shape in plan view by being surrounded by a side groove 11a having both a width and a depth. The display means H shown in the car wash port 11 in the state projected downward is provided.

  As shown in FIG. 1 and the like, the display means H is laid in a plane portion made of a material different from the surroundings, for example, a mortar-finished car wash port 11 with mark bodies 57 such as colored concrete bricks arranged vertically. It is composed by such things. When moving the car to be car-washed to the car-washing port 11, the plan view shape is such that the car is moved and parked so that it is located just above the display means H so that the car-washing operation can be easily performed. The advantage is that the vehicle can be positioned relatively easily in the center or approximately at the center of the oval moving rail 7.

  Next, as shown in FIG. 6 and FIG. 7, the car wash support device C includes a device main body 12 disposed between adjacent vertical columns 1, 1, an operation unit 13 provided on the device main body 12, and a pair of car wash nozzle devices (washing). An example of a spraying device for use) 20, 20, etc. The car wash nozzle device 20 includes an injection grip 18 and three rubber supply hoses (flexible hoses) 22 to 24 that connect the injection grip 18 and the apparatus main body 12. A grip gun body 19 to be operated and a switching valve 21 are provided.

  Each of the two supply hoses 22-24 merges in the middle and is made of a flexible member such as rubber, and is bundled into one first to third base hose h1 to h3 and routed to the apparatus main body 12. Yes. A detergent water supply source 25 for supplying detergent water (an example of a first cleaning liquid) is connected to the proximal end of the first base hose h1, and the end of each first supply hose 22, 22 is the first of the switching valve 21. It is connected to the inlet port 21a. A water supply source 26 for supplying tap water (an example of a second cleaning liquid) is connected to the proximal end of the second base hose h2, and the end of each of the second supply hoses 23, 23 is the second inlet of the switching valve 21. It is connected to the port 21b. An air supply source 27 for supplying high-pressure air is connected to the base end of the third base hose h3, and the ends of the third supply hoses 24, 24 are connected to the air inlet 46 of the grip gun body 19. .

  As shown in FIGS. 8 to 10, the switching valve 21 includes a valve body 21A having the first and second inlet ports 21a and 21b and one output port 21c described above, and a shaft body X that rotates around the valve body 21A. The valve body 21B is movably fitted therein, and the switching lever 21R is interlocked and connected to the valve body 21B. The valve body 21B is formed with an L-shaped path 21w that allows the first inlet port 21a or the second inlet port 21b and the output port 21c to communicate with each other. The switching valve 21 is coupled to the grip gun body 19 via a rubber coupling hose (an example of a pipe body) 60 that connects the output port 21c and the liquid inlet portion 45 of the grip gun body 19. 21, the connecting hose 60, and the grip gun body 19 constitute an injection grip 18.

  The detergent water supply source 25 accommodated in the apparatus main body 12 outputs a water pump (water valve pump) that outputs to the air mixing mechanism 30 to which the proximal end of the first base hose h1 is connected and receives the tap water supply path 29 as an input. ) 31 and a detergent tank 33 into which the suction hose 32 of the water pump 31 is inserted. That is, the water pump 31 that is operated by the flow of tap water flowing in from the supply path 29 sucks the detergent stock solution stored in the detergent tank 33 and mixes it with tap water, and tap water mixed with the detergent, That is, it is possible to supply the detergent water to the spray grip 18 through the first base hose h1 and the first supply hose 22 and to eject the water from the nozzle 47 which is the ejection part. The water pump 31 is equipped with a detergent mixture ratio adjusting unit 31a capable of adjusting the concentration of the detergent water. In addition, as shown with a virtual line in FIG. 7, it is also possible to take the structure which supplies the air mixed detergent water which passed the air mixing mechanism 30 which mixes the air taken in via the regulator 44 to the 1st base hose h1. . Moreover, 59 in FIG. 7 is a drain valve provided in a proper place.

  The water supply source 26 accommodated in the apparatus main body 12 includes a water hose 35 connected to a water discharge section 34 such as a faucet that can freely supply tap water, a strainer 36 that is a device for removing foreign substances from tap water, and an active water device 37. Etc. are provided. A second base hose h2 is connected to a water inflow path 38 that connects these three parties 35, 36, and 37 in series via a branch path 39, and a supply path 29 of the detergent water supply source 25 is connected to the branch path 39. Has been. That is, the water supply source 26 functions as a water supply source for both the first and second base hoses h1 and h2.

  As a reference, the active water device 37 is a “device that raises the power inherent in water (surface tension, dissolution power, osmotic power, heat conduction power)”. Examples include a magnetic active water device that is activated to a positive charge state using force. In other words, due to the magnetic moment generated by Faraday's law, water molecules are actively rotating electrons and energy movement between molecules is activated. Reborn, water is activated. By this activation, the cleaning ability with water is improved, so that both the dirt removing action by the washing liquid and the washing liquid dropping action by the water washing are improved, and a sufficient washing effect can be obtained even with a small amount of water. As a result, it is possible to significantly reduce the cost for car washing.

  The air supply source 27 accommodated in the apparatus main body 12 includes an air hose 41, an air cleaner 42, and a first regulator 43 connected to a high-pressure air (compressed air) supplier 40 such as a compressor. The air after passing through the first regulator 43 is configured to be sent to the third base hose h3. As described above, the air that has passed through the second regulator 44 may be sent to the air mixing mechanism 30. An existing compressor can also be used as the air supply unit 40 so that it is not necessary to purchase a new air supply unit 40 at the gas station.

  Next, the injection grip 18 will be described in detail. As shown in FIGS. 8 to 10, the spray grip 18 is provided with (1) detergent water and (2) air detergent water mixed with air from a nozzle 47 which is a tip ejection portion in cooperation with the switching valve 21. , (3) tap water, (4) air water mixed with air, and (5) air (high pressure air). The grip gun body 19 is provided with a liquid transfer path 50 for flowing cleaning liquid such as water or detergent water, a liquid on-off valve 48A, an air supply section 52, a nozzle 47, an air support section 61, a hanging hook 62, and the like. It has been. The structure of the liquid on-off valve 48A depicted in FIG. 8 and the like is an example, and other structures may be used. Further, the hanging hook 62 having a twisted shape may have a straight shape so that the hooking direction is different from that shown in the drawing by 90 degrees.

  The grip gun body 19 having a grip portion 19g that can be gripped with fingers is equipped with a liquid on-off valve 48A that can freely and intermittently flow the cleaning liquid in the liquid feed path 50 formed inside. The liquid on-off valve 48A is opened by the swing movement in the direction of arrow A by the hand grip with the grip portion 19g of the operation lever 19a pivotably supported, and the position drawn by a solid line by the hand grip release The liquid on-off valve 48A is configured to be closed by a swinging movement in the direction of the arrow B to return to the normal position. In this case, if the liquid on-off valve 48A is configured to be a variable flow rate type in which the supply amount of the cleaning liquid per unit time increases as the gripping amount (angle) of the operation lever 19a increases, it is more convenient and easy to use. It will be a thing.

  The mixing unit 49 has an air mixing chamber 49A having an inner diameter D which is a portion immediately before the mixing unit 49 in the liquid transfer path 50 and has a diameter D larger than the diameter d of the valve output port 50A having the same diameter as the liquid transfer path 50. ing. That is, the mixing unit 49 is formed in the air mixing chamber 49 </ b> A having a cross-sectional area larger than the cross-sectional area of the liquid transfer path 50. The air hose 53 accommodated in the air support portion 61 and the air supply portion 52 to which the third supply hose 24 is connected via the air on-off valve 48B are provided in a state of penetrating the peripheral wall 49h of the mixing portion 49. Yes. Here, the portion of the third supply hose 24 accommodated in the air support 61 and the air hose 53 form an air path e. The air mixing chamber 49A includes a main mixing chamber 49a and a stabilizing chamber 49b having a smaller volume than the main mixing chamber 49a and partitioned from the main mixing chamber 49a by an annular partition wall 49c. Nozzle 47 is attached to.

  The air supply unit 52 exhibits a function of mixing the high-pressure air sent by the third supply hose 24 with the cylindrical mixing unit 49 in the vicinity of the nozzle 47 in the liquid transfer path 50. That is, the air supply unit 52 includes a check valve 58 that prevents a back flow of water from the air mixing chamber 49A, and an air nozzle 54 that ejects air into the air mixing chamber 49A with a high force. In the air supply unit 52, the direction of the air discharged from the air nozzle 54 intersects the water flow in the air mixing chamber 49A, and the lower side of the air flow direction is the lower side of the water flow direction. Inclined with an angle θ. The angle θ is preferably 45 degrees, but other angles may be used. In addition, the air supply unit 52 is arranged so that the tip center of the air supply unit 52 exactly coincides with the axis Y of the mixing unit 49 (see FIG. 10), but the tip center of the air supply unit 52 passes through the axis Y, A configuration in which the axis Y is not reached is also possible.

  The air on-off valve 48B provided in the air support 61 simply disconnects the third supply hose 24. The air supply is cut off from the open state in which air is supplied by the switching operation of the operation member 48b. The closed state can be switched. When the air on-off valve 48B is in the closed state, if the switching valve 21 is operated to the detergent position, (1) only the detergent water in the first supply hose 22 can be ejected from the nozzle 47, and the switching valve 21 is watered. When operated to the position, (2) only the active water (tap water) of the second supply hose 23 can be ejected from the nozzle 47. When the switching valve 21 is operated to the detergent position when the air on-off valve 48B is opened, (3) air detergent water in which air is mixed with the detergent water in the first supply hose 22 is discharged from the nozzle 47. If the switching valve 21 is operated to the water position, (4) air activated water obtained by mixing air with the activated water (tap water) of the second supply hose 23 can be ejected from the nozzle 47. Further, when the air on-off valve 48B is opened and the liquid on-off valve 48A is closed without grasping the operation lever 19a, (5) only air can be ejected from the nozzle 47.

  When the detergent water is ejected, as shown in FIG. 9, a foaming cylinder (an example of a foaming tool) 63 is externally fitted to the nozzle 47 and the operation lever 19a is gripped, so that the foaming cylinder 63 It is possible to spout the detergent water bubbled from the tip. That is, the base end portion of the foaming cylinder 63 made of synthetic resin matches the shape of the tapered nozzle 47 and is fitted into and detached from the small-diameter neck portion (an example of the engaging portion) 47a. A mounting hole 64 having an annular protrusion 64a is formed, and the foaming cylinder 63 can be attached to and detached from the nozzle 47 by each operation of forced insertion and forced removal. Therefore, when tap water is jetted, the foaming cylinder 63 carried by the grip gun body 19 with the string 66 is used without being attached to the nozzle 47 as shown in FIG. In this case, it is possible to use a method in which the foaming cylinder 63 is attached to the nozzle 47 as shown in FIG. The foaming cylinder 63 is a well-known one, and the description of the structure here is omitted.

  By the way, each base hose h1 to h3 is branched into a pair of first to third supply hoses 22 to 24 before reaching the moving rail 7, and the operation unit 13 provided in the apparatus main body 12 includes A water total stop lever 55 for cutting off the supply of tap water and an air total stop lever 56 for cutting off the supply of high-pressure air are provided (see FIG. 6). Further, the length of the connecting hose 60 is such that the grip portion 19g of the grip gun body 19 can be grasped with one hand and the switching valve 21 can be switched with the other hand in order to eject cleaning liquid such as water or detergent water. It is set to an appropriate value (60 to 70 cm) for the two-hand operation supported by the robot. The appropriate value can be changed depending on how the standard form of the target worker is set (general adult male, female, foreigner, etc.).

  Next, FIG. 11 shows an example of a car wash operation by two workers using the car wash support facility A described above. FIG. 11 shows that the workers m and m are located on both sides of the car B to be car-washed, which is parked in the car-wash port 11, and each has the injection grip 18 with the foaming cylinder 63 equipped. A situation is shown in which foam detergent water is sprayed from both sides of the automobile B. In addition, when performing alone, one of the injection grips 18 is used.

  In general, an artificial car wash first operates the switching valve 21 to the water position to eject tap water from the spray grip 18 to remove dirt (sand, mud, etc.) adhering to the automobile and easily remove dirt. A preliminary water washing step is carried out for swelling. In this preliminary washing, the air on-off valve 48B may be closed to eject only water. However, the air on-off valve 48B increases the momentum of the water flow to enhance the dirt removal effect and save water. It is desirable to open the air and to blow out air water (air activated water) mixed with air. Next, the spray grip 18 is operated with the switching valve 21 at the detergent position and the foaming cylinder 63 is attached to the nozzle 47, and a detergent spraying process is performed in which foamed detergent water is ejected to the automobile B ( (See FIG. 9). Even in this detergent spraying step, a means not to mix air can be taken, but a means to mix air and sprinkle foamy detergent water is desirable in that the detergent water can be sprayed efficiently in a short time.

  Then, a washing process is performed in which the vehicle B in a state where the detergent water is applied is wiped and rubbed with a wiping tool such as a sponge or a waste cloth or wiped with a small amount of water. After completion of the cleaning process, a rinsing process is performed in which the switching valve 21 is operated to the water position, and air water is jetted from the nozzle 47 of the spray grip 18 to the automobile B to remove detergent water and remaining dirt. Even in this rinsing step, it is desirable that air is mixed with water to increase the power in order to enhance the rinsing action and save water. Finally, dry air or the like is used to wipe off moisture adhering to the automobile B, or the air on-off valve 48B is opened without grasping the operation lever 19a, and only air is supplied from the nozzle 47 of the injection grip 18. Residual moisture is quickly blown away and removed (or dried) by air blow, which is blown out, or is naturally dried, and a series of human car washing operations using the car wash support facility A is completed. Depending on the degree of dirt, the first preliminary washing step may be omitted.

  Then, the spray grips 18 and 18 that have been used only have to be hung on the dedicated grip stand 65 using the hanging hook 62, and are scattered on the ground like a conventional car wash device. There is no need to clean up after the rubber hose is wound up and dirty. Therefore, even a troublesome worker can quickly finish the car wash in a clean state without leaving it dirty or messy, or it can be replaced comfortably with the next worker. The advantage that it becomes possible can be obtained.

Now, the water-saving effect at the time of the jetting operation in the water / air mixed state using the 45-degree inclined mixing type jet grip 18 shown in FIG. 10 will be described. That is, when the tap water pressure is 4.2 kg / cm ² and the flow rate per unit time (min) is set to 17 L / min, the water saving rate is as shown in FIG. 12 with respect to the third base hose h3. When the air pressure (for each of the third supply hoses 24, 24) is 2 kg / cm ² [flow rate per unit time (min) is 17 L / min], the air pressure is 0%, and the air pressure is 3 kg / cm ² [per unit time (min). When the flow rate is 13 L / min], the air pressure is 24%, and when the air pressure is 4 kg / cm ² [flow rate per unit time (min) is 10.3 L / min], 39%, and the air pressure is 5 kg / cm ² [unit time (min ) Was 57% at 7.3 L / min.

Here, the water-saving rate is the amount of water required to clean a car body in a certain dirty state to a certain clean state, as described above, with respect to the amount of water necessary to achieve in a water-only jet state. It can be defined as a unit% value obtained by subtracting from 100 the ratio of the amount of water required to be achieved in a jetting state with water / air mixing at each air pressure. In other words, at air pressures of 3, ⁴ , and 5 kg / cm ² , the same effect can be achieved with 76%, 61%, and 43% of the amount of water required when only water is ejected, respectively. Accordingly, in the car wash support facility A using the car wash support device C having the spray grip 18 (the car wash nozzle device 20) excellent in water-saving effect in this way, the amount of water required for a series of car wash is markedly higher than that of the conventional one. There is an advantage that the running cost can be greatly reduced and economical car washing can be performed.

[Another Example]
In the spray grip 18, the angle formed between the air jetted from the air nozzle 54 and the flow direction of water at the base end of the mixing portion 49 depends on the size (diameter, length, etc.) of the air mixing chamber 49A and the unit time of water. The flow rate, the flow velocity, the air pressure, the air flow rate, and the like may be obtained as appropriate. For example, various inclination angles other than 45 degrees such as 15 degrees, 30 degrees, and 60 degrees can be set. . Further, various modifications such as providing a plurality of air supply portions 52 inserted and arranged in the air mixing chamber 49A and making the inclination angles the same or different from each other are possible.

Moreover, and air pressure exceeding 5 kg / cm ^2, with beyond 2 kg / cm ² may be 3 kg / cm ² or less air pressure, Toka whether to how high air pressure to water pressure, how much air volume The setting such as setting can be performed as appropriate. The ejection part 47 of the ejection grip 18 may be constituted by an orifice or a simple hole in addition to the nozzle. The pipe body 60 can be variously modified such as a flexible hose made of rubber, vinyl, or the like, a combined hose of a rigid pipe and a flexible hose made of metal, synthetic resin, or the like.

  The switching valve 21 may be the injection grip 18 having a structure that is provided on the grip gun body 19 such as the grip portion 19g. In this case, the connecting hose 60 is unnecessary. Assuming that the switching valve 21 has a structure having three or more inlet ports, a liquid can be selected by selecting one of three or more cleaning liquids (for example, tap water, active water, general detergent water, detergent for removing oil, etc.). It is good also as the injection grip 18 which can be supplied to the transfer rod 50.

A perspective view looking down, showing the overall outline of the car wash support facility 1 is a perspective view of the car wash structure in FIG. Cross-sectional side view of the car wash support facility of FIG. The front view which shows the structure for car wash in FIG. The figure which shows the engaging part of the rail for a movement and a rolling hook Front view of car wash support equipment Functional system diagram showing schematic structure of car wash support device Overall configuration diagram showing schematic structure of spray grip (Example 1) Overall configuration diagram of spray grip showing detergent foam ejection state Side view showing structure of main part of injection grip Action diagram showing the state of car washing work by two people The figure which shows the relational graph of the air pressure and water saving rate at the time of water / air mixed ejection

Explanation of symbols

DESCRIPTION OF SYMBOLS 18 Injection grip 19 Grip gun body 21 Switching valve 21a 1st inlet port 21b 2nd inlet port 21c Output port 47 Jetting part (nozzle)
47a Engagement part 48A On-off valve 48B Air on-off valve 49 Neighboring part 49A Air mixing chamber 50 Liquid transfer path 52 Air supply part 58 Check valve 60 Tubing body 63 Foaming tool e Air path A Car wash support equipment C Car wash support equipment

Claims (11)

  A first inflow state for flowing the first cleaning liquid sent to the first inlet port to the liquid transfer path following the output port, and a second inflow for flowing the second cleaning liquid sent to the second inlet port to the liquid transfer path A switching valve for switching between the states and a jet part for jetting the cleaning liquid flowing in the liquid transfer path are provided, and an air supply part for mixing air is provided in the vicinity of the jet part in the liquid transfer path. The spray device for cleaning.   An open / close valve that switches between an open state that allows the cleaning liquid flowing in the liquid transfer path to be transferred to the air supply unit, and a closed state that blocks transfer to the air supply unit, and the ejection unit. The cleaning spray device according to claim 1, further comprising a grip gun body that can be gripped with fingers.   The cleaning spray device according to claim 2, wherein the on-off valve is configured as a variable flow rate type.   The switching valve and the grip gun body are connected via a pipe body that forms the liquid transfer path, and the length of the pipe body holds the grip gun body with one hand so as to eject the cleaning liquid. The cleaning spray device according to claim 2, wherein the cleaning valve is set to a value suitable for supporting the switching valve with the other hand so that the switching operation can be performed.   The air opening / closing valve which switches the open state which supplies air to the said air supply part, and the closed state which interrupts | blocks air supply is equipped in the air path which can supply air to the said air supply part. The ejection device for cleaning according to any one of 4.   A foaming tool for discharging the detergent water jetted from the jetting part in a foamed state for car wash in which the first cleaning liquid is set to detergent water and the second cleaning liquid is set to tap water. The ejection device for cleaning according to any one of claims 1 to 5, wherein an engagement portion for detachably mounting the ejection portion is formed in the ejection portion.   The cleaning spray device according to any one of claims 1 to 6, wherein the vicinity is formed in an air mixing chamber having a cross-sectional area larger than a cross-sectional area of the liquid transfer path.   The air supply unit is inclined and disposed so that the direction of air discharged from the air supply unit intersects the flow of the cleaning liquid, and the lower side of the air flow direction is the lower side of the cleaning liquid flow direction. Item 10. The ejection device for cleaning according to any one of Items 1 to 7.   The cleaning jet device according to claim 8, wherein the air supply unit is configured such that an included angle between the air flow and the cleaning liquid flow is 45 degrees or substantially 45 degrees.   The cleaning jet device according to any one of claims 1 to 9, wherein the air supply unit is equipped with a check valve that prevents a backflow of the cleaning liquid from the liquid transfer path.   The ejection unit for cleaning according to any one of claims 1 to 10, wherein the ejection unit includes a nozzle that ejects a cleaning liquid.

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