JP2008105482A - Jetting device for washing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To develop and provide an economical nozzle device for car washing which is capable of reducing the cleaning cost for car washing or the like by improving a cleaning liquid jetting device in which water is mainly used in a car washing device so that the cleaning liquid can be saved without degrading the car washing capacity. <P>SOLUTION: The nozzle device for car washing comprises an inlet 45 of a cleaning liquid, and an outlet 47 for jetting the cleaning liquid flowing in from the inlet 45. An air flow-in unit 52 for mixing air in a liquid passage 50 is equipped on a part 49 in a vicinity of the outlet 47 in the liquid passage 50 for communicating the inlet 45 with the outlet 47. <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 layer.

  According to the first aspect of the present invention, in the cleaning jet device, the cleaning liquid is provided with an inlet 45 for the cleaning liquid and an outlet 47 for ejecting the cleaning liquid flowing in from the inlet 45, and the liquid that allows the inlet 45 and the outlet 47 to communicate with each other. An air inflow portion 52 for mixing air into the liquid path 50 is provided at a location 49 in the path 50 near the outlet 47.

  According to a second aspect of the present invention, in the cleaning jet device according to the first aspect, the grip gun body which is equipped with the inlet 45, the outlet 47, and the air inflow portion 52 and can be gripped with fingers. 25, and is configured.

  According to a third aspect of the present invention, in the cleaning jet device according to the second aspect, an open state in which the cleaning liquid flowing in from the inlet 45 is allowed to be transferred to the air inflow portion 52, and the air inflow portion 52 is provided. The grip gun body 25 is equipped with an on-off valve 48A for switching between a closed state for blocking the transfer to the gripper.

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

  According to a fifth aspect of the present invention, in the cleaning jet device according to any one of the first to fourth aspects, the neighboring portion 49 communicates the neighboring portion 49 and the inlet 45 in the liquid path 50. It is formed in an air mixing chamber 49A having a diameter larger than the diameter of the path portion 50a.

  According to a sixth aspect of the present invention, in the cleaning jet device according to any one of the first to fifth aspects, the air inflow portion 52 has a direction in which 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 seventh aspect of the present invention, in the cleaning jet device according to the sixth aspect of the present invention, the air inflow portion 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.

  According to an eighth aspect of the present invention, in the cleaning jet device according to any one of the first to seventh aspects, the check valve for preventing the backflow of the cleaning liquid from the liquid path 50 is provided in the air inflow portion 52. 58 is equipped.

  The invention according to claim 9 is characterized in that, in the cleaning jet device according to any one of claims 1 to 8, the outlet 47 is constituted by a nozzle.

  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. 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. Thus, it is possible to provide an economical cleaning jetting device that can be improved so as to reduce the cost for cleaning a car or the like.

  If the cleaning gun is configured 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 cleaning liquid is interrupted as in claim 3. If the grip gun body is equipped with a flexible on-off valve, it is possible to provide a convenient and easy-to-use cleaning spray device that can perform intermittent operation of the cleaning liquid at hand. Further, if the on-off valve is a variable flow rate type as in claim 4, for example, the amount per unit time is increased, for example, the amount is increased and water is poured vigorously or a small amount of water is flown for rinsing. The flow rate can be adjusted at hand, and a more convenient cleaning jet device can be obtained.

  According to the invention of claim 5, since the liquid path of the part where air is mixed functions as an expansion chamber, the cleaning liquid such as water or soapy water and the air are used while the structure is mixed with air just before the ejection part. Can be ejected in a well-mixed and stable mixed state. 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 6, the flow of air discharged from the air inflow portion does not hinder the flow of the cleaning liquid, and a synergistic effect to increase the momentum can be exerted, and at the same time, they intersect at an angle. 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 described in claim 7, when the crossing angle between the cleaning liquid and the air is set to 45 degrees, the mixing can be performed most efficiently. Further, if a check valve is provided at the air inflow portion as in claim 8, it is advantageous that the backflow of the cleaning liquid can be reliably prevented when air is not used, and the outlet is provided as in claim 9. It becomes possible to eject the mixed fluid of the cleaning liquid and air more vigorously using the nozzle as a nozzle.

  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 FIG. 8 is a structure of an artificial operation grip that is a washing spray device. FIG. 9 is a side view of a partially cut-out, FIG. 9 is an action diagram showing a car wash situation by two-person work, and FIG. 10 is a relationship graph between air pressure and water saving rate.

[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, three types of hose mechanisms h 1 to h 3 extending from the car wash support device C, and a suspended cantilever above the car wash port 11. The oval moving rail 7 that forms the car wash space S and a plurality of piece members 10 that are movably supported by the hose mechanisms h1 to h3 are supported.

  First, the car wash structure K includes three vertical struts 1 erected from the ground G along the fire pit W, and three horizontal struts 2 having one end fixed at an intermediate position between the vertical struts 1. The three suspension rods 3 that connect the other ends of the horizontal struts 2 to the corresponding upper ends of the vertical struts 1 and the vertical struts 1 adjacent to each other at the fixed portion of the horizontal struts 2 are provided on the upper and lower sides, respectively. A pair of short connecting members 4, 4, one long connecting member 5 that connects and integrates the other ends of the horizontal struts 2, various reinforcing members 6 that are installed obliquely, and three The moving rail 7 is fixed to the lower side of the horizontal struts 2 so as to straddle the horizontal struts 2. A plurality of rolling hooks 10 are suspended from the moving rail 7 so as to be movable. In addition, it is good also as a structure which equips the upper side of the horizontal support | pillar 2 with the steel plate panel 8, 9, 8 for an advertisement (for decoration).

  As shown in FIG. 3, the vertical column 1 is supported in a standing posture by being embedded in the ground with a weight 1 </ b> W made of concrete or the like integrated at its lower end. One vertical steel plate panel 9 and two horizontal steel plate panels 8 and 8 are supported in a standing posture by ladder-like support frame portions 19 and 18 arranged on the back side (inner side) of the horizontal steel plate panels. Advertisements, advertisements, designs, and the like are applied to the outer surfaces of 8, 8 and the vertical steel plate panel 9, respectively.

  As shown in FIGS. 2 and 5, the moving rail 7 has a vertically viewed shape having a pair of vertical rail portions 7 a and 7 a and a pair of curved horizontal rail portions 7 b and 7 b that are separated in the vehicle width direction. A car wash port 11 formed by bending an H-section steel (which may be an inverted T-shaped section steel) 7A in a state of an oval loop, and formed below the ground by dividing it A car wash space S is formed between the upper and lower sides. A plurality of rolling hooks (piece members) 10 supported so as to freely move along the rail 7 are suspended on the moving rail 7 so as to be freely movable. These three types support the insertion of the intermediate portions of the pair of supply hoses 20, 23, and 26 in the longitudinal direction of the hose.

  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 intermediate portions in the longitudinal direction of the hoses 20, 23, and 26. The hose support portion 16 is supported on the rolling frame 17 so as to be rotatable about the vertical axis, and the supply hoses 20, 23, and 26 are inserted and locked. Therefore, if each supply hose 20, 23, 26 is pulled, the rolling hook 10 will roll with respect to the moving rail 7 following 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 FIGS. 6 and 7, the car wash support device C includes a device main body 12 disposed between adjacent vertical struts 1, 1, an operation unit 13 provided thereon, and first to third hose mechanisms. h1 to h3 and the like. The first hose mechanism h1 includes a cleaning liquid supply hose 20, a cleaning liquid supply source 21 connected to the base end thereof, a jet part (an example of a cleaning jet device) 22 connected to the tip of the cleaning liquid supply hose 20, It is comprised. The second hose mechanism h2 includes a water supply hose 23, a water supply source 24 connected to the base end of the water hose 23, a jet part (an example of a cleaning jet device) 25 connected to the tip of the water supply hose 23, It is comprised. The third hose mechanism h3 includes an air supply hose 26, an air supply source 27 connected to the base end of the air supply hose 26, a jet part (an example of a cleaning jet device) 28 connected to the tip of the air supply hose 26, It is comprised.

  The cleaning liquid supply source 21 accommodated in the apparatus main body 12 outputs a water pump (water valve pump) 31 that outputs to the air mixing mechanism 30 to which the proximal end of the cleaning liquid supply hose 20 is connected and receives the tap water supply path 29 as an input. 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 liquid detergent stored in the detergent tank 33 and mixes it with tap water, and tap water mixed with the detergent, That is, the cleaning liquid that is mixed with air by the air mixing mechanism 30 to be foamed can be ejected from the foam grip 22 of the tip nozzle structure, which is the ejection portion 22, through the cleaning liquid supply hose 20.

  The foam grip 22 is provided with an on-off valve (not shown). If the switching lever 22a is gripped with the grip portion 22g, the switching valve is "opened" and foam cleaning liquid can be ejected. If the lever 22a is not grasped, the switching valve is “closed” and the ejection of the foamy cleaning liquid is stopped. The water pump 31 is equipped with a detergent mixture ratio adjusting unit 33a for adjusting the amount of detergent to be mixed with tap water. Moreover, 59 in FIG. 7 is a drain valve provided in a proper place.

  The water supply source 24 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 removes foreign substances from tap water, and an active water device 37. Etc. are provided. A water supply hose 23 is connected to a water inflow path 38 connecting these three parties 35, 36, and 37 in series via a branch path 39, and a supply path 29 of the cleaning liquid supply source 21 is connected to the branch path 39. Yes. That is, the water supply source 24 functions as a water supply source for both the first and second hose mechanisms 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 actively rotate their 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, a first regulator 43, and a second regulator 44 connected to a high pressure air (compressed air) supplier 40 such as a compressor. . The air after passing through the first regulator 43 is sent to the air supply hose 26, and the air after passing through the second regulator 44 is 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.

  As shown in FIGS. 7 and 8, the ejection part 25 of the second hose mechanism h2 and the ejection part 28 of the third hose mechanism h3 are a connection part (an example of an inlet) 45 of the water supply hose 23 and an air supply hose. An artificial operation grip (grip) which is a single car wash nozzle device having 26 connection portions 46, a single nozzle (an example of an outlet) 47, a switching valve 48, and a mixing portion (an example of a nearby portion) 49. An example of a gun body) 25. The grip portion 25g of the artificial operation grip 25 is equipped with a water on-off valve 48A capable of interrupting the flow of water in an internally formed water transfer path (an example of a liquid path) 50, and can swing at a fulcrum P. The water on-off valve 48A is opened by swinging movement in the direction of the arrow a by the hand grip with the grip portion 25g of the operation lever 25a pivotally supported by the lever, and returns to the position depicted by the solid line by releasing the hand grip. Accordingly, the water on-off valve 48A is closed by a swing movement in the direction of arrow B. It is more convenient and easy to use if the water on-off valve 48A is configured to be a variable flow rate type in which the supply amount of water per unit time increases as the gripping amount (angle) of the operation lever 25a increases. It becomes.

  The mixing part 49 has an air mixing chamber 49A having an inner diameter D larger than the inner diameter d of the path part 50a that communicates the mixing part 49 and the connection part 45 in the water transfer path 50, and has a connection part at the base. An air inflow portion 52 having 46 is provided so as to penetrate the peripheral wall 49 h of the mixing portion 49. 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 inflow portion 52 includes a check valve 58 for preventing a back flow of water from the air mixing chamber 49A and a nozzle portion 54 for ejecting air into the air mixing chamber 49A with a high force. In the air inflow portion 52, the direction of the air discharged from the nozzle portion 54 intersects the flow of water in the air mixing chamber 49A, and the lower side of the air flow direction is the lower side of the water flow direction. Are inclined with an angle θ. The angle θ is preferably 45 degrees, but other angles may be used.

  An air on / off valve 48B is provided separately from the water on / off valve 48A so that the air supply hose 26 can be intermittently switched by being connected to an intermediate portion of the air supply hose 26 or the air inflow portion 52. Accordingly, the water supply state in which only the water supply hose 23 communicates with the nozzle 47 and the air supply in which only the air supply hose 26 communicates with the nozzle 47 by the opening / closing operation of the water on / off valve 48A and the air on / off valve 48B. The state can be switched by operating the two on-off valves 48A and 48B, and the on-off valve 48A for water and the on-off valve 48B for air constitute the switching valve 48. Reference numeral 48b shown in FIG. 8 denotes a switch lever for opening and closing the air on-off valve 48B. The switch lever is operated so that the position indicated by the solid line is closed and the position indicated by the virtual line is opened. Note that the air on-off valve 48B shown in FIG. 8 is an example, and may be configured to be provided separately from the artificial operation grip 25.

  By the way, a pair of foam grips 22 and artificial operation grips 25 are provided, and each hose 20, 23, 26 branches into two branch hoses 20h, 23h, 26h before reaching the moving rail 7. Has been. The operation unit 13 provided in the apparatus main body 12 is equipped with a water total stop lever 55 for blocking the supply of tap water and an air total stop lever 56 for blocking the supply of high-pressure air (see FIG. 6). Reference numeral 53 denotes a water tank formed of a synthetic resin material or the like.

  Next, FIG. 6 shows an example of a car wash operation by two workers using the car wash support facility A described above. FIG. 6 shows that 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 a foam grip 22 and a foam-like cleaning liquid (detergent water). It shows the situation that is blowing. As the car washing operation progresses, the operator m uses an artificial operation grip 25 that sprays water or air instead of the foam grip 22.

  In general, an artificial car wash first performs a preliminary washing process in which water is applied to the entire automobile by using the artificial operation grip 25 to remove sand and mud, and to swell to make it easier to remove dirt. In this preliminary washing, only water may be ejected, or air may be mixed and ejected to increase the momentum of the water flow and save water. Then, it is changed to the foam grip 22 and a cleaning liquid spraying step of spraying detergent water (cleaning liquid) is performed (see FIG. 9). Then, the car in which the cleaning liquid is applied is cleaned by wiping the body with a wiping tool such as sponge or waste cloth. A rinsing step is performed in which water is spouted to remove the remaining dirt. Even in this rinsing step, air may be mixed with water to improve power. Finally, wipe off with dry waste or the like, or remove and dry the residual moisture quickly by blowing air only from the artificial operation grip 25, or let it dry naturally and use the car wash support equipment A series of artificial car wash operations were completed. Depending on the degree of dirt, the first preliminary washing step may be omitted.

  The four grips 22, 22, 25, 25 and the hoses 20, 23, 26 that have been used are only cleaned after the tip of each grip 22, 22, 25, 25 is immersed in the water tank 53. There is no need to clean up after the rubber hose part scattered on the ground is taken up by troublesome work. Therefore, even a troublesome worker can finish the work in a clean state without leaving it dirty or messy quickly, or can be replaced with the next worker.

Now, the water-saving effect at the time of the ejection operation in the water / air mixed state using the 45-degree inclined mixing type artificial operation grip 25 shown in FIG. 8 will be described. With respect to the second hose mechanism h2, the water saving rate under the condition that the tap water pressure is 4.2 kg / cm ² and the flow rate per unit time (min) is set to 17 L / min is as shown in FIG. When the air pressure for the third hose mechanism h3 is 2 kg / cm ² [flow rate per unit time (minute) is 17 L / min], the air pressure is 3 kg / cm ² [flow rate per unit time (minute) is 13 L. / Min] is 24%, air pressure is 4 kg / cm ² [flow rate per unit time (min) is 10.3 L / min], 39%, air pressure is 5 kg / cm ² [flow rate per unit time (min)] Was 7.3 L / min], it was 57%.

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 using the washing jetting device having the labor operation grip 25 having an excellent water-saving effect as described above, it is possible to significantly reduce the amount of water required for a series of car washing as compared with the conventional one. There is an advantage that an economical car wash can greatly reduce the running cost.

[Another Example]
In 25 (28) as an artificial operation grip (car wash nozzle device) which is a grip gun body, the angle formed between the air jetted from the nozzle portion 54 and the flow direction of water at the base end portion of the mixing portion 49 is air mixing. What is necessary is just to obtain | require suitably from various conditions, such as the magnitude | size (diameter, length, etc.) of the chamber 49A, the flow volume per unit time of water, a flow velocity, an air pressure, an air flow rate, for example, 15 degrees, 30 degrees, 60 degrees, etc. It is possible to set various inclination angles. Various modifications can be made such as providing a plurality of air inflow portions 52 inserted and arranged in the air mixing chamber 49A, and in addition to making the inclination angles the same or different from each other.

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 outlet 47 of the artificial operation grip 25 (28), which is the washing jetting part, may be constituted by an orifice or a simple hole in addition to the nozzle, and a structure in which the air inflow part 52 is provided near the outlet is provided with detergent water or soap. You may apply to the foam grip 22 which supplies cleaning liquid, such as water.

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 Side view of a partly cutout of the main part showing the internal structure of the artificial operation grip (Example 1) 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

25 Grip gun body 45 Cleaning liquid inlet 47 Cleaning liquid outlet (nozzle)
48A On-off valve 49 Neighboring part 49A Air mixing chamber 50 Liquid path 50a Path part 52 Air inflow part 58 Check valve

Claims (9)

  An inlet for the cleaning liquid and an outlet for ejecting the cleaning liquid flowing in from the inlet; and for mixing air in the liquid path at a location near the outlet in the liquid path that connects the inlet and the outlet A cleaning jet equipped with an air inlet.   The cleaning spray device according to claim 1, further comprising a grip gun body that is equipped with the inlet, the outlet, and the air inflow portion and can be gripped with fingers.   The grip gun body is equipped with an open / close valve that switches between an open state that allows the cleaning liquid flowing in from the inlet to be transferred to the air inflow portion and a closed state that blocks the transfer to the air inflow portion. The ejection device for cleaning according to claim 2.   The cleaning spray device according to claim 3, wherein the on-off valve is configured to be of a variable flow rate type.   The said vicinity location is formed in the air mixing chamber larger diameter than the diameter of the path | route part which connects the said vicinity location and the said inlet_port | entrance in the said liquid path | route. Ejection device.   The air inflow portion is inclined and arranged so that the direction of air discharged from the air intersects with 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 6. The ejection device for cleaning according to any one of Items 1 to 5.   The cleaning jet device according to claim 6, wherein the air inflow portion 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 7, wherein the air inflow portion is equipped with a check valve that prevents backflow of cleaning liquid from the liquid path.   The ejection device for cleaning according to any one of claims 1 to 8, wherein the outlet is constituted by a nozzle.

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