JPH02171435A - Valve unit for sanitary flusher - Google Patents

Abstract

PURPOSE:To make the whole device compact in size as well as to make improvements in reliability by installing each port at both primary and secondary sides on the outer surface of a fundamental block, while setting up a solenoid valve, a pressure reducing valve and a throttle valve after being built in this fundamental block. CONSTITUTION:A primary side port 1 being connected to a high-pressure water pipe such as a water pipe or the like and a secondary side port 2 being connected to a prudental part washing part both are provided on the outer surface of a fundamental block 4. Next, both these ports 1, 2 are interconnected to each other by an inward passage L1, an interconnecting passage L2 and an outward passage L3 of this fundamental block 4. Then, a throttle valve C varying a projection extent out of the prudental part washing part is installed in the outward passage L3, and a solenoid valve A opening or closing a water channel is installed in space between the inward passage L1 and the interconnecting passage L2. In addition, a pressure reducing valve B for lowering high pressure at the primary side and keeping pressure at the secondary side constant against a pressure fluctuation at the primary side is installed in space between the interconnecting passage L2 and the outward passage L3. In this connection, these valves A, B and C are formed after being built in the fundamental block 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a valve unit used in a sanitary cleaning device that sprays hot water to clean the private parts of the human body.

[Prior art 1] The waterway configuration of a sanitary washing device that spouts washing hot water for private part washing from a nozzle is as shown in Fig. , Change in primary pressure of inflowing hot water with opening of solenoid valve A (1,
Pressure reducing valve B to keep the secondary pressure always constant (1, OKHf/cm 2 ) for 5Kgf/cm"-7, 5Kg/cIa2), variable flow rate of hot water discharged from the nozzle via the hot water tank Throttle valve C1 to discharge a specified amount of waste water at the same time as hot water is discharged in order to satisfy the specified total water discharge amount (501/I+ or more). It consists of a check valve, etc. that opens the pipe on the wastewater side to the atmosphere to prevent this from occurring. Conventionally, as shown in Figure 7, a solenoid valve A, a pressure reducing valve B, a throttle valve C, a check valve valve, etc. The orifice E was independent in each block, and the valve unit was constructed by connecting them.

The solenoid valve A has a structure in which water is supplied from the primary port 1 of the solenoid valve base block 16 and drained to the solenoid valve secondary port 16a, and the solenoid valve secondary port 16a is a pressure reducing valve described later. -Next side bow) It is formed as a convex portion in a direction perpendicular to the axial direction of the solenoid valve for connection with the solenoid valve shaft direction 17a. The pressure reducing valve B has a structure in which water is supplied from the pressure reducing valve primary side port 17a of the pressure reducing valve base block 17 and drained at the pressure reducing valve secondary side port 17b.
The pressure reducing valve secondary port 17b is formed as a concave portion and is formed as a convex portion in a direction perpendicular to the pressure reducing valve B. In the throttle valve C, a check*-D and an orifice are formed in the throttle valve base block 18, and water is supplied from the throttle valve primary side port 18a. The throttle valve primary port 18a is formed in four parts coaxially and parallel to the axis of the flow rate adjusting nozzle 14.

Above solenoid valve secondary side bow) 16a and pressure reducing valve - next side bow) 1
7a, pressure reducing valve secondary side bow) 17b and throttle valve - next 1111
1iK-) 18a were each airtightly supported and constituted piping between the respective valve devices. Note that the remaining symbols in FIG. 7 are the same as those in the embodiment described later, so the explanation will be omitted.

[Problem to be solved by the invention] However, when a large number of valve devices d are connected by piping,
Assembling the beans increases the number of man-hours, has extremely poor workability, requires a large amount of storage space, and has the problem of increasing the size of the device. Furthermore, due to the structure of solenoid valve A and pressure reducing valve B, the connecting waterway has to be formed into a conduit with many complicated curves as shown in Figure 7. There was a problem of poor reliability and increased pressure loss due to bends and restrictions in the waterway. In addition, since the valve devices are arranged horizontally, the number of valve devices is as large as the number of horizontal objects.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to reduce the size of the entire device, improve the reliability of the piping system, and minimize pressure loss in the pipeline. We offer small valve units.

[a! A method for solving the problem Fi1 To achieve the above object, the valve unit of the sanitary cleaning device of the present invention has a primary side port 1 connected to a high-pressure water pipe such as a water pipe, and a secondary side port 1 connected to a private part cleaning section. A port 2 is provided on the outer surface of the base block 4, and the primary side port 1 and the secondary side port 2 are connected to an introduction flow path or a communication flow path L2 in the base block 4.
, an outlet channel, and an outlet channel, and the outlet channel is provided with a throttle valve C built into the base block 4 for varying the amount of protrusion from the private washing section, and the inlet channel A solenoid valve A opens and closes the waterway by opening the passage L1 and the communication passage L2, and between the communication passage L2 and the outlet passage, the high pressure on the primary side is lowered and the secondary pressure is applied to the pressure change on the primary side. It is characterized in that the pressure reducing valve B, which keeps the side pressure constant, is incorporated into the Koto Pro 7 R 4 so as to face each other with the base block 4 open.

[Operation 1] As described above, the discharge passage of the solenoid valve A and the inlet passage of the pressure reducing valve B are shared by the connecting flow path L2, so that the pipe line from the solenoid valve A to the pressure reducing valve B can be eliminated. In addition, valve devices such as a solenoid valve A, a pressure reducing valve B1 and a throttle valve C are integrated into the base block 4.
The waterway between the pressure reducing valve B and the pressure reducing valve B can be simplified, as well as the waterway to other valve devices.

In addition, since the water supply section and discharge section such as the primary port 1 and the secondary port 2 of the entire valve unit are structured to surround the outer periphery, the ports on the water supply side and the discharge side can be opened at desired positions.

[Embodiment 1] An embodiment of a valve unit of a sanitary cleaning device according to the present invention will be described below with reference to FIGS. 1 to 55.

The valve unit consists of a solenoid valve A, a pressure reducing valve B disposed on the secondary side to the solenoid valve, a throttle valve C disposed on the secondary side of the pressure reducing valve B, an orifice, and a check valve. 4. The primary port 1 and the secondary port 2 provided on the outer surface of the base block 4 communicate with each other through an introduction channel, a communication channel L2, and an outlet channel provided in the base block 4, The introduction channel L1 and the outlet channel are substantially parallel, and the communication channel L2 is substantially perpendicular to them.

The solenoid valve A is constructed as follows. A valve seat 8a is provided between the introduction channel L1 and the communication channel L2, and the valve seat 8a
A valve plate 8 is disposed on the primary side of the valve so as to be able to approach and separate from it. A thread/id coil 6 is attached to the upper surface of the base block 4, and the F end of the valve plate 8 is fixed to the lower end of the movable iron core 5 of the thread/id coil 6. It is resiliently biased by a coil spring 7 in the downward projecting direction. Normally, the force of the coil spring 7 causes the valve plate 8 to come into contact with the valve seat 8a and close the valve. When the solenoid coil 6 is energized, the movable iron core 5 is attracted, and the valve plate 8 retreats from the valve seat 8a. It is designed to be separated and open. This solenoid valve A is connected to the water pipe through the primary port 1, and the opening/closing operation of the solenoid valve A controls water supply from the water pipe and water stoppage.

The pressure reducing valve B has a valve body 10 formed on the outer periphery of a valve shaft 10b close to or separated from a valve seat 10a formed between a communication flow path L2 and an output flow ′#iL to reduce the flow in this part. It is configured to change the road area.

The valve shaft 10b has a bearing member 9 fitted to the base block 4.
The valve shaft 10b includes a back pressure introduction path that communicates with the outlet flow path L3;
It is formed. The periphery of the diaphragm 11 is sandwiched between the base block 4 and the pressure reducing valve cover block 4a, and the diaphragm 11 is disposed perpendicularly to the central axis of the valve seat 10a.
is stretched, and the valve shaft 10 [) is placed in the center of the diaphragm 11.
The lower ends of the valve body 10 are connected to each other, and the valve body 10 moves toward or away from the valve seat 10a depending on the amplitude of the diaphragm 11. A spring retainer 13 is screwed into the threaded hole 41 of the pressure reducing valve cover block 4a so as to be freely threadable in the direction of the valve shaft 10b.
The diaphragm 11 is returned to a stable position by the elastic pressing force of a coil spring 12 interposed in the opening between the valve element 10 and the valve seat 10a, and a predetermined flow area is maintained in the opening between the valve body 10 and the valve seat 10a. . The bearing member is screwed and fixed through a screw hole 9a screwed into the communication passage L2, and as shown in FIG. This part serves as an effective flow path.

The throttle valve C is formed by rotatably and slidably disposing a flow rate adjustment nozzle 14 in the drainage passage, holding the flow rate adjustment nozzle 14 with a holding plate 14a, and provided at the tip of the flow rate adjustment nozzle 14. The variable orifice formed between the outlet flow path L3 and the secondary port 2 due to the spiral shape allows the amount of water discharged to the secondary port 2 to be adjusted W4G.

In other words, by rotating the flow rate adjustment nozzle 14, the mouth is opened and closed in a spiral shape at the tip, thereby producing a variable orifice capable of spouting 1151 g of water.

In addition, a wastewater port 3 is formed at right angles to the outlet flow path, coaxially with the flow path of the secondary side port 2, and in the opposite direction to the outlet port. There is an orifice between the two.

The check valve is configured so that the valve plate 15 is moved toward and away from the valve seat 15a from the downstream side, and atmospheric air is introduced from the outside in response to negative pressure in the outlet flow path. It is designed to prevent negative pressure.

As described above, the configuration of the valve unit of the present invention is such that a large number of valve devices are connected only by the three-way flow passages formed in the base block 4, so there is no complicated shape for connecting each valve device. Processing is extremely simple, and a large number of valve devices can be integrated into the base block 4 to form a unit.Moreover, there is no flow path loss due to connecting piping from the drainage of the solenoid valve A to the introduction to the pressure reducing valve B, and furthermore, the valve unit The entire structure is not horizontally elongated and can be made compact.

[Effects of the Invention] Since the present invention is constructed as described above, valve devices such as a solenoid valve, a pressure reducing valve, and a throttle valve can be incorporated into one base block, and piping can be considerably omitted. This improves assembly work efficiency, and since piping is omitted and there are no joints, the reliability of the entire piping system is improved.Furthermore, the solenoid valve and pressure reducing valve are mounted facing each other on the base block. As a result, the piping between them is straight and extremely short, resulting in very low flow path loss, and furthermore, the lateral length of the valve unit can be significantly reduced, making it possible to make the valve unit more compact.

[Brief explanation of the drawing]

Figure 1 is a plan view of the valve unit of the present invention, Figure 2 is a sectional view of the same, Figure 3 is a bottom view, Figure 4 is an exploded perspective view of the same, and Figures 5 (a) and (b) are pressure reducing valves. A plan sectional view and a front sectional view of the portion, FIG. 6 is a block diagram showing the same water channel structure,
FIG. 7 is a sectional view showing a conventional example, where A is a solenoid valve, B is a solenoid valve,
is a pressure reducing valve, C is a throttle valve, Ll is an introduction channel, L2 is a communication channel, Ll is an outlet channel, 1 is a primary side port, 2 is a secondary side port, and 4 is a base block. Agent Patent Attorney Ishi 1) Ai 7th 3rd Figure 5th CG) 1αl○. ob

Claims (1)

[Claims] [1] A primary port connected to a high-pressure water pipe such as a water pipe and a secondary port connected to the local cleaning unit are provided on the outer surface of the base block, and the primary port and secondary port are located inside the base block. are communicated through three channels in the order of an introduction channel, a communication channel, and an outlet channel, and the outlet channel is provided with a throttle valve built into the base block for varying the amount of protrusion from the private part cleaning section, A solenoid valve that opens and closes the waterway between the inlet flow path and the communication flow path, and a solenoid valve that reduces the high pressure on the primary side between the communication flow path and the outlet flow path and adjusts the pressure on the secondary side in response to pressure changes on the primary side. A valve unit for a sanitary washing device, characterized in that a pressure reducing valve for maintaining constant pressure is incorporated into a base block so as to face each other with the base block in between.