JPH01169027A - Washing nozzle device - Google Patents

Abstract

PURPOSE:To stabilize the temperature of hot water by disposing a temperature sensor into a communicating path communicating an outflow port for a heating unit, the inside of which has a heater, and an inflow port for a nozzle unit with a piston having a jet. CONSTITUTION:A hot-water sensor 19 is arranged into a communicating path 18 shaped between an outflow port 8 for a heating unit 5, the inside of which has a cylindrical heater 7, and an inflow port 14 for a nozzle unit 6 with a cylindrical piston 13 having a jet 12. Chilled water from an inflow port 11 is changed into hot water through the inside of the heater 7 and a flow path 9, and made to flow into the unit 6, and hot water from the jet 12 is injected. An input to the heater 7 is controlled at a set temperature on the basis of a signal detected by the sensor 19 fitted to the path 18, and a temperature in a section to be washed is nearly equalized to that in the sensor section 19. Accordingly, the temperature of washing can be stabilized.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cleaning nozzle device for a cleaning device that cleans tableware and human bodies by jetting hot water.

2. Description of the Related Art As shown in FIG. 5, a conventional cleaning nozzle device of this type is configured such that a hot water heater 1 that heats water and a nozzle device 2 that sprays cleaning water are independent devices. The device 1 and the nozzle device 2 were connected by a hose 3. (For example, Japanese Utility Model Application Publication No. 61-41536) Problems to be Solved by the Invention However, with the above configuration, heat radiation loss occurs in the hose portion 3, and the nozzle device 2 freezes at extremely low temperatures, making cleaning difficult. I can't do it. In addition, since the distance to reach the cleaning nozzle is long, if you try to adjust the water temperature by feeling after hitting the jet stream, there are problems such as long feedback times and difficulty in obtaining a comfortable water temperature. Was.

The present invention solves these conventional problems.It reduces the heat loss of the hot water cleaning device, allows the hot water cleaning device to be used without any trouble even in cryogenic conditions, and provides a cleaning solution that provides a stable cleaning water temperature. The purpose is to provide a nozzle device.

Means for Solving the Problems In order to solve the above-mentioned problems, the cleaning nozzle device of the present invention includes a nozzle unit section consisting of a hot water heating unit section with a built-in heater, a piston having a nozzle hole, and a cylindrical cylinder. are arranged and joined almost in parallel, and a communication passage is provided that directly connects the water heater outer cylinder outlet and the cylindrical cylinder inlet, and a hot water temperature sensor for controlling the hot water temperature is disposed in the communication passage. The structure is as follows.

Operation According to the above-described structure, the cold water that has flowed in is heated by the hot water heating unit, becomes hot water, and flows into the communication path from the outlet of the outer cylinder of the water heater. After the temperature of the hot water that has entered the communication path is detected by a hot water temperature sensor, it flows into the nozzle unit and is sprayed outside from the injection hole.

The hot water temperature is controlled by feeding back an output signal from a hot water temperature sensor inserted into the communication path to the control circuit and controlling the heater input.

Example Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIGS. 1, 2, 3, and 4, reference numeral 4 denotes a main body of the cleaning nozzle device, which is composed of a hot water heating unit 5 and a nozzle unit 6. The hot water heating unit 5 is composed of a cylindrical heater 7 and a water heater outer cylinder 10 having an outlet 8 on the outer periphery and forming a flow path 9 with the heater 7 . 1
1 is a cold water inlet. The nozzle unit 6 is composed of a cylindrical piston 13 having an injection hole 12 at its tip, and a cylindrical cylinder 15 in which the cylindrical piston 13 slides on an inner cylindrical surface and has an inlet 14 at its outer peripheral end. ing. Reference numeral 16 denotes a biasing spring for storing the hot water inlet 17 into the cylindrical piston 13 in the cylindrical cylinder 15 . 18 is a communication path, and a hot water temperature sensor 19 is inserted into the flow path.

In the above configuration, cold water flows from the inlet 11 and flows inside the heater 7, where it is slightly heated. Heater 7
The water that has reached the outlet end is reversed and flows through the channel 9, where it is completely heated and becomes hot water. The heated hot water passes through the communication path 18 from the outlet 8 to reach the inlet 14 and flows into the nozzle unit 6. In the nozzle unit 6, the cylindrical piston 13 protrudes against the biasing spring 17 due to the pressure of the inflowing hot water. At the same time, the hot water flows inside the cylindrical piston 13 and reaches the tip and is ejected from the injection hole 12.

(As shown in Figure 3). The temperature of the hot water is maintained at a set temperature by controlling the input to the heater 7 based on the signal detected by the hot water temperature sensor 19. This hot water temperature control can be performed even when water is flowing or when the flow is stopped.

In the above operation, communication between the hot water heating unit 5 and the nozzle unit 6 w! Almost no heat radiation occurs at the 18th section because the distance is short. Therefore, there is no temperature difference between the temperature of the part to be cleaned that is hit by the jet stream and the part of the hot water temperature sensor, resulting in a stable temperature in the part to be cleaned.

In addition, since the hot water heating unit 5 and the nozzle unit 6 have an almost parallel integrated structure, heat is transmitted from the hot water heating unit 5 to the nozzle unit 6. Since the units are arranged in parallel, this heat conduction occurs over the entire area of the cylindrical cylinder 15 of the nozzle unit 6.

Effects of the Invention As described above, the cleaning nozzle device of the present invention provides the following effects.

(1) Since the outlet of the hot water heating unit and the inlet of the nozzle unit are directly connected, there is almost no heat loss, and the temperature of the part to be cleaned and the water temperature sensor part that are hit by the jet stream are almost the same, resulting in stable cleaning. The water becomes hot. In addition, the distance from the water temperature sensor to the part to be cleaned is short, and the feedback of the water temperature setting is fast, making it possible to quickly stabilize the water temperature.

(2) Freezing of the nozzle unit can be prevented by heat conduction from the hot water heating unit. In particular, since the hot water heating unit and the nozzle unit are arranged in parallel, the entire area of the nozzle unit is kept uniformly warm, thereby doubling the antifreeze effect.

(3) Since the hot water heating unit and the nozzle unit are integrated, processing and assembly are easy and costs are reduced.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a cleaning nozzle device according to an embodiment of the present invention, Fig. 2 is a sectional view of the same device, Fig. 8 is an enlarged sectional view of a part of the water temperature sensor of the same device, and Fig. 4 is the same. FIG. 5 is a cross-sectional view of the apparatus when hot water is injected, and FIG. 5 is a plan cross-sectional view in which a conventional hot water heating apparatus and a nozzle apparatus are arranged. 4... Cleaning nozzle device main body, 5... Hot water heating unit, 6... Nozzle unit, 1... Cylindrical heater,
8... Outlet, 9... Channel, 10... Water heater outer cylinder, 12... Injection hole, 13... Cylindrical piston, 14...
... Inflow port, 15... Cylindrical cylinder, 18... Communication path, 19... Hot water temperature sensor. Name of agent: Patent attorney Toshio Nakao Haka1 person4 -
, i tip cleaning nozzle surface summer zero body S - warm ice processing unit 6... nozzle unit Fig. 2 Fig. 3 Fig. 5

Claims (1)

[Claims] A heating unit section that includes a heater that heats water and has a water inlet and an outlet; and a nozzle unit section that includes a piston that has an injection hole and a water inlet. A cleaning nozzle device comprising: a communication path that communicates an outlet of the heating unit with an inlet of the nozzle unit, and a water temperature sensor for controlling the temperature of hot water disposed in the communication path.