JP4858433B2 - Cleaning liquid discharge device - Google Patents

Description

  The present invention relates to a cleaning liquid discharge apparatus.

  A conventional kitchen sink curan discharges tap water as it is from a discharge port, and has a problem that the cleaning power is low and the object to be cleaned cannot be cleaned cleanly (for example, Patent Document 1).

Further, for example, there is a cleaning device that supplies detergent in a detergent tank to a discharge nozzle as in Patent Document 2, and this can discharge a detergent having a high cleaning power, so that an object to be cleaned can be cleaned cleanly. However, this apparatus has a problem that water pressure cannot be used for discharging the detergent and a pump is required, which is costly.
JP 2000-345595 A JP-A-5-192265

  The present invention has been made in view of the above-described conventional problems, and can discharge a cleaning liquid containing a detergent having a high cleaning effect and bubbles, and it is not necessary to separately provide a pump for discharging the cleaning liquid, thereby reducing costs. It is an object of the present invention to provide a cleaning liquid discharge device.

In order to solve the above-mentioned problem, a cleaning liquid discharge device according to claim 1 of the present invention is provided at a branch path 6 connected to a water pipe 5 connected to a currant 4 for a kitchen sink 3 and at a downstream end of the branch path 6. The discharge nozzle 7 is provided, the branch passage 6 is provided with an on-off valve 12 and a check valve 13 including a constant flow valve 11 and an electrically driven valve, and the water supplied to the discharge nozzle 7 from the branch passage 6 is provided to the discharge nozzle 7. A detergent supply unit 15 for supplying detergent to the water, a gas mixing unit 14 for mixing bubbles in tap water supplied from the branch path 6 to the discharge nozzle 7, and a water supply from the branch path 6 to the discharge port 10 of the discharge nozzle 7 A water stop means for stopping the supply of water upstream of the detergent supply section 15 and the gas mixing section 14 to stop the discharge of the cleaning liquid from the discharge nozzle 7, and a water stop means operation section for operating the water stop means And a predetermined time t has elapsed since the on-off valve 12 was opened. Wherein the automatic provision of the on-off valve 12 to close control portion.

Further, according to claim 2 in claim 1, characterized in that the opening and closing valve 12 is flow adjustable electric valve.

Further, according to a third aspect of the present invention , in the first or second aspect , an upright portion 9 that supports the discharge nozzle 7 is provided on the peripheral portion of the kitchen sink 3 of the sink 2, and the on-off valve 12 is operated on the upright portion 9. For this purpose, an on-off valve operating section 18 is provided.

  In the invention which concerns on Claim 1, a detergent is supplied to the tap water supplied to the discharge nozzle from the detergent supply part, the washing | cleaning liquid consisting of the tap water containing a detergent can be discharged, and a to-be-washed | cleaned object can be cleaned neatly. In addition, it is possible to discharge a cleaning liquid made of tap water containing bubbles by supplying gas to the tap water supplied to the discharge nozzle from the gas mixing unit. Since the cleaning liquid containing bubbles has high impact force and high cleaning power, the cleaning effect can be further enhanced. Further, the cleaning liquid can be discharged using the water pressure, and it is not necessary to provide a separate pump for discharging the cleaning liquid, thereby reducing the cost. In addition, since the detergent supply unit is provided in the discharge nozzle provided at the downstream end of the branch path away from the water pipe, the detergent supplied from the detergent supply part flows back into the water pipe leading to the currant for the kitchen sink. Can be reliably prevented.

In addition, by configuring the open / close valve with an electrically driven valve, it is possible to quickly switch whether or not the cleaning liquid is discharged from the discharge port of the discharge nozzle.

Further, by providing the water stop means on the discharge nozzle, the water can be stopped twice by the water stop means and the on-off valve. In addition, by providing a control unit that automatically closes the on / off valve after a predetermined time has elapsed since opening the on / off valve, the on / off valve continues to open when the supply of tap water to the discharge port is stopped by the water stop means Thus, it is possible to prevent water leakage or breakage due to water pressure being applied to the part from the on-off valve in the branch path to the water stop means of the discharge nozzle.

Further, in the invention according to claim 2 , in addition to the effect of claim 1 , by configuring the on-off valve with an electric valve capable of adjusting the flow rate, the discharge amount of the cleaning liquid discharged from the discharge nozzle can be adjusted, and the usability is improved. good.

Further, in the invention according to claim 3 , in addition to the effect of claim 1 or 2 , the on-off valve operating portion can be arranged at a position where the on-off valve operating portion is easy to operate by providing the on-off valve operating portion. The discharge of the cleaning liquid from can be easily switched.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. The cleaning liquid discharge device 1 according to an example of the present embodiment shown in FIGS. 1 to 7 is either a cleaning liquid made of tap water containing bubbles or a cleaning liquid made of tap water containing bubbles and detergent in the kitchen sink 3 provided in the sink 2. One can be selectively discharged.

  As shown in FIG. 1, the cleaning liquid discharge device 1 includes a branch path 6 connected to a water pipe 5 connected to a currant 4 for a kitchen sink 3, and a discharge nozzle 7 provided at the downstream end of the branch path 6. Yes. The currant 4 is the same as the currant for the kitchen sink 3 that has been conventionally used. Although not shown, the peripheral portion of the kitchen sink 3 is provided with a raised portion 9 that supports a discharge nozzle 7 to be described later in the sink 2. It is provided above. A water heater (not shown) is provided on the upstream side of the branch point where the upstream end of the branch path 6 of the water pipe 5 is connected, and hot water heated to a predetermined temperature by the water heater or water in an unheated state is selectively used in the current 4. Or is supplied to the discharge nozzle 7.

  The downstream portion of the branch path 6 is constituted by a bendable hose 8, and the position and direction of the discharge nozzle 7 can be freely changed by bending the hose 8. As shown in FIGS. 2 and 3, the hose 8 is provided so as to be freely drawn out from the tip of the raised portion 9 raised from the peripheral edge of the kitchen sink 3 of the sink 2, and the hose 8 is raised when the discharge nozzle 7 is not used. 9 fits inside and can be stored well. The upright portion 9 is raised in an L-shape at a position away from the currant 4 at the peripheral edge of the kitchen sink 3 of the sink 2, and a discharge nozzle 7 is detachably attached to the tip portion of the upright portion 9. The discharge nozzle 7 is supported in a state where 10 is directed into the lower kitchen sink 3.

  A constant flow valve 11 (pressure reducing valve), an on-off valve 12, and a check valve 13 are provided in this order from the upstream side in the upstream portion 6a upstream of the hose 8 of the branch path 6. Further, the discharge nozzle 7 is provided with a gas mixing unit 14, a detergent supply unit 15, a bubble refining unit 16 (see FIG. 7), and a rectifying unit 17 (see FIG. 7) in order from the upstream side. That is, the tap water supplied to the branch path 6 is a constant flow valve 11 (pressure reducing valve), an on-off valve 12, a check valve 13, a gas mixing unit 14, a detergent supply unit 15, a bubble refinement unit 16, and a rectification unit 17. Are sequentially discharged, and then discharged from the discharge port 10 of the discharge nozzle 7.

  The constant flow valve 11 depressurizes the tap water supplied from the water pipe to the branch path 6 by the tap pressure, and sends it to the downstream side with a constant flow rate. As shown in FIG. 4, the on-off valve 12 is composed of an electromagnetic valve 12 a housed in an electromagnetic valve unit 30 together with a control base 19 constituting a control unit. The opening / closing of the on / off valve 12 is switched by the operation of the on / off valve operating unit 18 provided on the outer surface of the root portion of the upright portion 9, and whether or not the cleaning liquid is discharged from the discharge port 10 by switching the opening / closing of the on / off valve 12 in this way. Switch between. Since the on-off valve operation part 18 is provided in the upright part 9 raised from the peripheral part of the kitchen sink 3, it is located very close to the user who uses the kitchen sink 3 and is easy to use. The on-off valve operating portion 18 may be provided in other portions of the upright portion 9. For example, as shown in FIG. 8, a portion protruding laterally from the root portion of the upright portion 9 along the upper surface of the sink 2. It may be provided on the upper surface. Moreover, the on-off valve operation part 18 may be provided in places other than the upright part 9, such as the peripheral part of the kitchen sink 3 of the sink 2.

  Further, as shown in FIG. 5, the on-off valve 12 is set to automatically close the on-off valve 12 after a predetermined time t has elapsed since the on-off valve 12 was opened. Specifically, the on-off valve 12 is automatically closed by the control of the control board 19 when the on-off valve 12 is continuously open for 15 minutes.

  An internal flow path 20 shown in FIG. 7 is formed inside the discharge nozzle 7, and an upstream end of the internal flow path 20 is connected to the hose 8. The gas mixing section 14 and the detergent supply section 15 described above are provided in the middle of the internal flow path 20. Gas mixing by the gas mixing section 14 and supply of detergent by the detergent supply section 15 in this example are performed by the discharge nozzle 7. A negative pressure generated when cleaning water flows through the internal flow path 20 is used.

  A part of the internal flow path 20 is constituted by a throttle portion 21 whose inner diameter becomes smaller toward the downstream side, and a negative pressure generating portion in which a negative pressure is generated near the outlet of the throttle portion 21 of the internal flow path 20 when the cleaning liquid is discharged. 22

  An air release port 14 a that constitutes the gas mixing unit 14 and a detergent supply port 15 a that constitutes the detergent supply unit 15 are provided at locations facing the negative pressure generation unit 22 of the internal flow path 20. The atmosphere opening port 14a communicates with the outside of the discharge nozzle 7, and air is taken into the internal flow path 20 from the atmosphere opening port 14a due to the negative pressure generated in the negative pressure generating portion 22 when the cleaning liquid is discharged, and thus, into tap water. Air bubbles are mixed in.

  The detergent supply port 15 a communicates with a detergent tank 23 detachably attached to the discharge nozzle 7 via a detergent channel 24, and a detergent opening / closing valve 25 is provided in the detergent channel 24. The opening / closing of the detergent opening / closing valve 25 is switched by a detergent opening / closing valve operating unit 26 including a push button switch 26 a provided in the discharge nozzle 7. By opening and closing the detergent opening and closing valve 25, the detergent tank 23 and the internal flow path 20 can be switched between communication and non-communication, and the detergent tank 23 is opened by the internal flow path 20 when the cleaning liquid is discharged. The liquid detergent in the detergent tank 23 can be supplied to the tap water flowing through the internal flow path 20 by the negative pressure generated in the negative pressure generating unit 22.

  The detergent opening / closing valve 25 is urged in a direction to block the detergent flow path 24 by a spring (not shown). When opening the detergent opening / closing valve 25, the push button switch 26a is pushed against the spring force. The detergent opening / closing valve 25 moves to a position where the detergent flow path 24 is blocked by the spring force when the push button switch 26a is not pushed, and stops the supply of detergent from the detergent tank 23 to the internal flow path 20. Thereby, it can prevent that a detergent continues and is not supplied to the internal flow path 20 unintentionally.

  The supply amount of air supplied from the gas mixing unit 14 to the internal flow path 20 is set so that the void ratio (bubble mixing ratio) of the cleaning liquid is 10 to 30%, and the cleaning effect by the bubbles is enhanced and the bubbles The flow of the cleaning liquid can be prevented from being disturbed, and the viscosity of the detergent can be increased to enhance the water splash preventing effect. In addition, the amount of detergent supplied from the detergent supply unit 15 to the internal flow path 20 is set so that the detergent dilution concentration of the cleaning liquid is 5000 to 10,000 times, and the cleaning liquid containing bubbles has a high detergent dilution concentration. Therefore, it is possible to obtain a mousse-like bubble-containing cleaning liquid containing a large amount of bubbles, which can enhance the cleaning effect, and can discharge the bubble-containing cleaning liquid containing a detergent having an appropriate viscosity, thereby improving the water splash preventing effect. I can do it. In the illustrated example, the detergent supply port 15a is provided on the downstream side of the atmosphere opening port 14a, and the detergent from the detergent supply port 15a is supplied to the cleaning water mixed with bubbles at the atmosphere opening port 14a. The detergent supply port 15a may be provided on the upstream side of the atmosphere opening port 14a.

  A part of the flow path on the downstream side of the air flow opening 14 a of the internal flow path 20 is a pressure reducing / pressurizing unit 27. The decompression / pressurization unit 27 is composed of a Venturi-shaped channel whose channel area changes in the direction of tap water flow, and is located downstream of the decompression unit 27a and the decompression unit 27a with the channel diameter reduced toward the downstream side. It is comprised with the pressurization part 27b which expanded the flow path diameter to the side. When tap water (note that this tap water contains detergent when the detergent opening / closing valve 25 is opened) passes through the pressure reducing / pressurizing unit 27, along with the pressure fluctuation of the tap water generated at the time of the passage The relatively large bubbles contained in the tap water are sheared, whereby the bubbles are refined.

  A bubble shearing portion 28 having a large number of holes made of a mesh, a porous body, or the like is provided downstream of the decompression / pressurization portion 27 of the internal channel 20. The bubbles contained in the washing water are further refined by passing through a large number of holes in the bubble shearing portion 28.

  The downstream end portion of the internal flow path 20 is a rectifying section 17 having the same flow path diameter in the flow direction of the cleaning water. The flow path length L of the rectifying unit 17 is 2 to 5 times the diameter a of the rectifying unit 17, and the wash water is rectified by the rectifying unit 17 and then discharged linearly from the discharge port 10.

  Although not shown, the discharge nozzle 7 is provided with water stop means for stopping the supply of tap water (discharge of cleaning liquid) to the discharge port 10. For example, the water stop means includes a flow rate adjusting mechanism having a function of adjusting the flow rate in addition to the function of opening and closing the internal flow channel 20 provided at a location upstream of the throttle portion 21 of the internal flow channel 20. Is provided with a flow rate adjusting mechanism operating portion 29 (water stop means operating portion) for operating the flow rate adjusting mechanism.

  In order to clean an object to be cleaned such as the inner surface of the kitchen sink 3 or tableware using the cleaning liquid discharge device 1, the on-off valve operating portion 18 is operated to open the on-off valve 12, and the detergent tank 23 is attached in this state. The discharge nozzle 7 is gripped, the discharge port 10 is directed toward the object to be cleaned, and the internal flow path 20 is opened by operating the water stop means operation unit 29.

  Thereby, when the detergent on-off valve 25 is in the closed state, the tap water supplied from the branch path 6 to the discharge nozzle 7 is mixed with bubbles in the gas mixing section 14 and then included in the tap water. The bubbles are refined by the bubble refining unit 16 constituted by the decompression / pressurization unit 27 and the bubble shearing unit 28, and then rectified by the rectifying unit 17, and then the cleaning liquid containing the fine bubbles from the discharge port 10 is used. Discharged.

  Further, when the push button switch 26a is pushed in and the detergent on-off valve 25 is in the open state, the tap water supplied from the branch path 6 to the discharge nozzle 7 is mixed with bubbles in the gas mixing section 14, and next. After the detergent is supplied to the detergent supply unit 15, the bubbles contained in the tap water are refined by the decompression / pressurization unit 27 and the bubble shearing unit 28 and then rectified by the rectification unit 17. The liquid is discharged from the discharge port 10 as a cleaning liquid containing fine bubbles and a detergent. Then, the object to be cleaned is washed by applying the fine bubbles or fine bubbles discharged from the discharge port 10 in this way to the object to be cleaned.

As described above, since the cleaning liquid discharge device 1 of the present invention can discharge a cleaning liquid having a high cleaning effect made of tap water containing a detergent, the object to be cleaned can be cleaned cleanly. Further, Ru can discharge a cleaning liquid comprising a gas tap water supplied to the discharge nozzle 7 from the gas mixing unit 14 from the tap water containing air bubbles is supplied. Since the cleaning liquid containing bubbles has high impact force and high cleaning power, the cleaning effect can be further enhanced. Further, as described above, since the cleaning liquid can be discharged using the water pressure, it is not necessary to separately provide a pump for discharging the cleaning liquid, and the cost can be reduced. Further, since the cleaning liquid containing bubbles has high impact force and high cleaning power, the cleaning effect is high in this respect as well. Moreover, since the detergent supply part 15 is provided in the discharge nozzle 7 of the downstream end part of the branch path 6 furthest from the water pipe 5, the detergent supplied from the detergent supply part 15 leads to the currant 4 for the kitchen sink 3. Backflow to the water pipe 5 can be reliably prevented.

  Also, in this example, the bubbles contained in the cleaning liquid are fine bubbles with a very small bubble diameter, so the adhesion to dirt, permeability and peeling effect are high, so oil stains adhering to the object to be cleaned are more effective. Can be dropped. Further, since the fine bubbles have a very small bubble diameter and are uniformly contained, the water flow of the cleaning liquid is hardly disturbed, and therefore, the above-described water splash can be further prevented.

  In the present example, the on-off valve 12 is an electromagnetic valve 12a, that is, an electrically driven valve that can electrically drive the valve, so that whether or not the cleaning liquid is discharged from the discharge port 10 is quickly switched. be able to. Further, the on-off valve 12 is controlled so as to automatically close the on-off valve 12 after a predetermined time t has elapsed after being opened by the control unit comprising the control board 19. Therefore, when the internal flow path 20 is shut off by the flow rate adjusting mechanism operated by the water stop means operating portion 29 described above, the on-off valve 12 continues to open, and the flow from the on-off valve 12 to the flow rate adjusting mechanism of the discharge nozzle 7 It is possible to prevent water leakage or breakage due to water pressure applied to the flow path.

  In the cleaning liquid discharge apparatus 1 of the above example, the on-off valve 12 is configured by the electromagnetic valve 12a that opens and closes the branch path 6, but the on-off valve 12 may be manually operated. Further, the on-off valve 12 may be constituted by an electric valve (not shown) capable of adjusting the flow rate, and an electric valve capable of adjusting the opening of the valve at the time of opening is used. Further, in this case, the on-off valve operating portion 18 for operating the motor operated valve is a knob or a plurality of switches provided on the outer surface of the root portion of the upright portion 9 or the peripheral portion of the kitchen sink 3 in the sink 2 as in the above example. It consists of. For example, FIG. 6A discloses an example in which the on-off valve operation unit 18 is configured with a knob that can change the flow rate stepwise, and FIG. 6B shows the on-off valve operation unit 18. An example of a volume switch that changes steplessly is disclosed. In addition, when using the electric valve which enabled flow volume adjustment as the on-off valve 12 in this way, it is not necessary to provide the flow volume adjustment mechanism in the said example.

  Further, in the cleaning liquid discharge device 1 of each of the above examples, the downstream portion of the branch path 6 is configured by the bendable hose 8, but may be configured by a metal tube that cannot be bent. Further, the detergent tank 23 may be provided in the sink 2 without being provided in the discharge nozzle 7 and supplied to the detergent supply section of the discharge nozzle 7 by a pump.

It is a flowchart which shows an example of embodiment of this invention. It is a perspective view of the sink provided with the same cleaning liquid discharging apparatus. It is a perspective view which shows the state which pulled out the hose which provided the discharge nozzle same as the above from the sink. It is sectional drawing of a solenoid valve unit same as the above. It is a time chart which shows the open / close state of the on-off valve same as the above. (A) is a front view of the on-off valve operation unit that can adjust the discharge flow rate of the cleaning liquid in stages, and (b) is a front view of the on-off valve operation unit that can adjust the discharge flow rate of the cleaning liquid steplessly. . It is a schematic block diagram of a discharge nozzle same as the above. It is a perspective view which shows the discharge nozzle and upright part of the washing | cleaning liquid discharge apparatus of another example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cleaning liquid discharge apparatus 2 Sink stand 3 Kitchen sink 4 Callan 5 Water pipe 6 Branch path 7 Discharge nozzle 11 Constant flow valve 12 On-off valve 13 Check valve 14 Gas mixing part 15 Detergent supply part 18 On-off valve operation part

Claims (3)

A branch passage connected to a water pipe connected to a currant for a kitchen sink, and a discharge nozzle provided at the downstream end of the branch passage, and an on- off valve and a check valve comprising a constant flow valve and an electrically driven valve in the branch passage the provided, the discharge nozzle, and a gas mixing unit for mixing a detergent supply unit for supplying detergent in tap water supplied to the discharge nozzle from the branch passage, the air bubbles in tap water supplied to the discharge nozzle from the branch path, the branch A water stop means for stopping the discharge of the cleaning liquid from the discharge nozzle by blocking the supply of tap water from the passage to the discharge port of the discharge nozzle upstream from the detergent supply section and the gas mixing section; A cleaning liquid discharging apparatus, comprising: a water stop means operating unit for operation, and a control unit for automatically closing the on / off valve after a predetermined time has elapsed since the on / off valve was opened . The cleaning liquid discharging apparatus according to claim 1, wherein the on-off valve is an electric valve capable of adjusting a flow rate. 3. An on-off valve operating portion for operating the on-off valve is provided on the upright portion provided on the peripheral portion of the kitchen sink of the sink. The cleaning liquid discharging apparatus as described.

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