MXPA99009209A - Pneumatic detergent foam generator and dispenser - Google Patents

Abstract

A detersive foam producer and expeller pneumatic machine characterized by a main conduit (1) formed by two sections (4, 5) coupled to both mouths of a flow regulator valve (3), each having a corresponding smaller shunt (8, 9), of which the front section shunt (8) connects up a pneumatic pressure regulator (11) and the shunt (9) corresponding to the rear section is connected to a diaphragm pneumatic pump (12) by its outlet mouth, the said pump (12) being in connection with a suction hose (15) coming from a container (R) of detersive solution, and the final end of main conduit (1) connected to the ejection hose (7).

Description

GENERATOR AND DESPAIR PNEUMATIC FOAM DETERGENT TECHNICAL FIELD The present invention relates to a pneumatic machine dispenser and producer of detergent foam that is applied in washing processes for vehicles and large objects. In short, it consists of a mechanism that combines a pneumatic valve means with a pressure regulator and a diaphragm pump powered by an air compressor that activates it and a supply of surfactant detergent and elements that mix in a normal proportion to produce foam and expel the foam through a hose adapted with a spray nozzle.

BACKGROUND OF THE INVENTION As is well known, car washing is carried out by covering the vehicle with detergent foam after rinsing and mechanical brushing. The first step of this task requires that foam applied at a considerable pressure be applied to reach the most distant points from the outlet and also an abundant flow to achieve rapid coverage in order to activate the process, however this is not what happens in practice since the machines currently used produce suction of active material and air and the ejection of foam formed by an electric pump, this method is not enough to achieve the ideal conditions of flow and pressure. On the other hand, these machines require a rigorous control due to the presence of electrical circuits in high humidity environments, such as the tunnels.

EXPOSITION OF THE INVENTION The objective of the present invention is to optimize the washing process by a combination of elements that resolve the disadvantages exposed, having achieved during a test 35 liters of foam volume with an air pressure of 5 Kg / cm2, initiating from 1 liter of detergent solution (with 15% active material) combined in 100 liters of water using a 1/2 inch diameter air inlet duct and the 3/4 inch diameter outlet duct It connects to a 17 mm diameter inlet hose. Specifically, the invention relates to a pneumatic duct with an initial shut-off valve that fits with a smaller branch outlet outlet, followed by a flow regulating valve whose section goes to a second tube with a narrower section bypass , followed by the end of the duct, to which the outlet hose is attached. From the first derivation, a flexible linker line joins with a standard pneumatic pressure regulator. Through another flexible conduit, the pressure regulator is connected to a diaphragm pump whose second inlet is connected to a hose. Through a bolt fishing tube, the hose sucks the detergent solution contained in a tank. Outside the outlet of the referred double diaphragm pump is a flexible conduit attached to the second conduit branch. Finally, the expulsion hose is adapted with a transverse linear expansion outlet nozzle. With the elements described, the flow of compressed air enters the main duct through the initial valve, partially changing the first branch to the diaphragm pump, through the action of the pressure regulator, an expanded mixture is produced with the detergent solution. of its suction along the end of the bolt fishing tube inserted into the liquid mass contained in the tank and transported along the hose. The aforementioned mixture emerging from the pump outlet is carried along the corresponding flexible conduit until it enters the second section of the main conduit through its second branch. This last section is narrower than the initial section to keep the flow pressure lower than in the first branch, which completes the formation of foam and expels it out through the hose that is provided with a linear opening that causes the fan-shaped clearance effect. The integrated flow regulating valve between the first and second sections of the main duct allows calibration of the flow / section ejection ratio to achieve ideal conditions of the outlet pressure and foam density.

BRIEF DESCRIPTION OF THE DRAWINGS In order to briefly specify the established advantages and to allow a better understanding of the construction and operation characteristics of the present invention, the following description of a chosen and schematically illustrated example is provided without a particular scale in the attached drawings. It is expressly stated that, being an example, by no circumstance should be taken in a limiting or exclusive sense, but only intends to illustrate the basic concepts on which the invention is based. Figure 1 is a perspective view of the machine of the present invention wherein the cabinet cover has been removed. Figure 2 is a diagram of the hydropneumatic circuit of the machine.

BEST WAY TO CARRY OUT THE INVENTION In all the figures, the reference numbers are used consistently to indicate the parts of the constituent elements of the selected set as an example of the pneumatic producing machine and detergent foam dispenser. As shown in Figure 1, the apparatus of the invention consists of a cabinet container (G) into which enters the main pneumatic conduit (1) provided with a shut-off valve (2), a flow regulating valve (3). ) which is divided into two sections (4) and (5), the first section is larger than the second section, a final copy (6) of the ejector hose (7), a transverse branch (8) and a rear bypass (9). From the transverse branch (8) corresponding to the first section (4) arises a flexible conduit (10) that joins the pressure regulator (11), which in turn connects with the diaphragm pump (12), to Through the flexible conduit (13) of the pump another flexible conduit (14) emerges which is connected to the suction hose (15). At least the flexible conduit (16) is brought into contact with the diaphragm pump outlet with the described branch (9) corresponding to the second section (5) of the main conduit (1). The aforementioned suction hose (15) is shown in this figure with a bolt fisherman's end (17), immersed in the detergent solution contained in the tank (R), while the far end of the ejector hose (7) has a nozzle (18) rectangular mouth placed diametrically to produce the effect of fan when expelling the detergent foam. The schematic circuit observed in Figure 2 shows in black arrows the direction of the flow of compressed air supplied by a compressor, which in the branch 18 divert part of its flow through the conduit (10) to the pressure regulator (11) to enter to the diaphragm pump (12) through the conduit (13). The mixtures of compressed air coming into the aforementioned pump with the detergent solution coming from the tank (R) through the suction hose (15) and the duct (14) in the direction of the black arrows, produce a foaming agent that it leaves the pipe (16) until it enters through the branch (9), section 5, of smaller diameter than the section 4 of the main pipe. The aforementioned substance is then carried along the flow of compressed air circulating in the direction marked by the mixed arrows, towards the hose ejector (7) whose regulation is controlled by the valve (3). In carrying out the pneumatic machine for producing and dispensing detergent foam described herein, other improvements may be introduced that should be considered as variants within the scope of protection of this invention, the bases of which are established in the text of the following claims.

Claims (2)

1. CLAIMS. A pneumatic production and dispensing foam detergent machine comprising a main duct formed by two sections coupled to both mouths of a flow regulating valve, characterized in that each section has a corresponding smaller derivation, of which the branch of the front section is connected to a pneumatic pressure regulator and the bypass corresponding to the rear section is connected to a pneumatic diaphragm pump by its outlet mouth, the pump is connected with a suction hose that comes from a solution container, detergent, and the final end of the main conduit is connected to the exhaust hose.
2. 2. A pneumatic production and dispensing foam detergent machine according to claim 1, characterized in that its expulsion hose is adapted with an outlet orifice spray nozzle in rectangular section that is placed transversely in the front part.