JPH0784753B2 - Sanitary washing device valve unit - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a valve unit used in a sanitary washing device that jets hot water to wash a local part of a human body.

[Prior Art] The structure of the water passage of the sanitary washing device in which hot water for washing is ejected from the nozzle is a solenoid valve A for automatically opening and closing the water passage from the water supply side, as shown in FIG. Solenoid valve A
Change of primary pressure of hot water flowing in with opening of water (1.5Kgf / c
The secondary pressure is always constant (1.0 Kgf / cm2 for m ² ~ 7.5 Kg / cm ² ).
² ) A pressure reducing valve B for keeping the above, a throttle valve C for varying the flow rate of hot water discharged from the nozzle through the hot water tank, and hot water discharge for satisfying the specified total discharge amount (50 l / h or more) At the same time, it consists of an orifice E for discharging a specified amount of waste water, a check valve D, etc. that open the waste water side pipe to the atmosphere so as to prevent backflow when the water pipe side becomes lower than the internal pressure. Is a solenoid valve A, as shown in FIG.
The pressure reducing valve B, the throttle valve C, the check valve D, and the orifice E are independent for each block, and their connection constitutes a valve unit.

The solenoid valve A has a structure in which water is supplied from the primary side port 1 of the solenoid valve base block 16 and drained to the solenoid valve secondary side port 16a. For connection with the side port 17a, it is formed as a convex portion in a direction orthogonal to the solenoid valve axial direction. 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, but the pressure reducing valve primary side port 17a serves as a recess. The pressure reducing valve secondary port 17b is formed as a convex portion in a direction perpendicular to the pressure reducing valve B. In the throttle valve C, a check valve 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 side port 18a is formed as a recess so as to be coaxial with and parallel to the axis of the flow rate adjusting nozzle 14. The solenoid valve secondary side port 16a, pressure reducing valve primary side port 17a, pressure reducing valve secondary side port
17b and the throttle valve primary side port 18a are hermetically carried, respectively, to form piping between the valve devices. The remaining reference numerals in FIG. 7 are the same as those in the embodiment described later, and the description thereof will be omitted.

[Problems to be Solved by the Invention] However, when a large number of valve devices are connected by piping, the number of assembling steps increases, workability is extremely poor, and a large storage space is required, resulting in a large device. Had the problem of doing. In addition, because of the structure of the solenoid valve A and the pressure reducing valve B, the connecting water channel must be formed as a pipeline with many complicated curved portions as shown in FIG. The reliability was poor, and there was a problem that the pressure loss increased due to bending and constriction in the water channel. In addition, since the valve devices are installed side by side in the horizontal direction, the number of valve devices has become long in the horizontal direction.

The present invention has been made in view of the points described above, and an object of the present invention is to reduce the size of the entire device, improve the reliability of the piping system, and significantly reduce the pressure loss of the pipeline. To provide a small valve unit.

[Means for Solving the Problems] In order to achieve the above object, the valve unit of the sanitary washing device of the present invention includes a primary port 1 connected to a high-pressure water pipe such as a water pipe and a secondary port connected to a local washing part. 2 is provided on the outer surface of the base block 4, and the primary side port 1 and the secondary side port 2 have _three flow paths in the order of an introduction flow path L ₁ , a communication flow path L ₂ and a discharge flow path L _{3 in} the base block 4. Communication path, and the above-mentioned introduction flow path L ₁
And the outlet flow passage L ₃ are provided substantially parallel to each other, and the communication passage L ₂ is provided so as to be substantially orthogonal to the inlet flow passage L ₁ and the outlet flow passage L ₃ , and the outlet flow passage L ₃ is locally washed. A throttle valve C for varying the amount of water discharged from the portion is provided in the base block 4 and is provided between the introduction flow path L ₁ and the communication flow path L ₂ to open and close the water channel at this position. A valve A and a pressure reducing valve B provided between the communication passage L ₂ and the outlet passage L ₃ for lowering the high pressure on the primary side and keeping the pressure on the secondary side constant against changes in the pressure on the primary side. Are incorporated in the base block 4 so as to face each other with the base block 4 interposed therebetween.

[Operation] As described above, the discharge passage of the solenoid valve A and the water inlet passage of the pressure reducing valve B can be shared by the communication passage L ₂ , and the pipeline from the solenoid valve A to the pressure reducing valve B can be deleted. Further, a valve device such as a solenoid valve A, a pressure reducing valve B, and a throttle valve C is integrated in the base block 4, so that the water passage between the solenoid valve A and the pressure reducing valve B is originally a water passage to another valve device. Can be converted. In addition, since the water supply portion and the discharge portion such as the primary side port 1 and the secondary side port 2 of the entire valve unit surround the outer circumference, the water supply side and discharge side port positions can be opened to desired positions.

[Embodiment] An embodiment of the valve unit of the sanitary washing device according to the present invention will be described below with reference to FIGS. 1 to 5.

The valve unit includes a solenoid valve A, a pressure reducing valve B disposed on the secondary side of the solenoid valve A, a throttle valve C disposed on the secondary side of the pressure reducing valve B, an orifice, and a check valve D. Is formed by being incorporated into. The primary side port 1 and the secondary side port 2 provided on the outer surface of the base block 4 communicate with each other through an introduction flow path L ₁ , a communication flow path L ₂ and a discharge flow path L ₃ provided in the base block 4. The introduction channel L ₁ and the outlet channel L ₃ are substantially parallel to each other, and the communication channel L ₂ is substantially orthogonal to them.

The solenoid valve A is configured as follows. Valve seat 8a is provided between the introduction passage L ₁ and the communication passage L _2, Benban 8 are arranged freely toward and away from the primary side of the valve seat 8a. A solenoid coil 6 is mounted on the upper surface of the base block 4,
The lower end of the valve plate 8 is fixed to the lower end of the movable iron core 5 of the solenoid coil 6, and the movable iron core 5 is elastically biased by the coil spring 7 in a direction projecting downward from the solenoid coil 6. Normally, the force of the coil spring 7 makes contact with the upper portion of the lead-out hole 82 provided in the valve disk 8 to introduce the lead-in hole.
The valve plate 8 is in contact with the valve seat 8a by the water pressure so that the water flowing from 81 to the pressurizing portion 83 does not flow out, and the movable iron core 5 is sucked by the energization of the solenoid coil 6, and the water is discharged from the discharge hole The pressure of the pressurizing portion 83 is reduced by passing through the valve 82, and the valve disc 8 is retracted and separated from the valve seat 8a to be opened.
This solenoid valve A is connected to a water pipe through the primary side port 1, and the opening / closing operation of the solenoid valve A controls water supply and water stoppage from the water pipe.

In the pressure reducing valve B, the valve body 10 formed on the outer periphery of the valve shaft 10b is moved toward and away from the valve seat 10a formed between the communication flow path L ₂ and the discharge flow path L ₃ , and the flow of this portion is made. It is configured to change the road area. The valve shaft 10b is slidably supported at its upper end portion in the axial direction with respect to the bearing member 9 fitted to the base block 4, and the back pressure introduction communicating with the outlet flow path L ₃ is introduced into the valve shaft 10b. It forms path L ₄ . The diaphragm 1 is sandwiched between the base block 4 and the pressure reducing valve cover block 4a so that the diaphragm 1 is orthogonal to the central axis of the valve seat 10a.
1 is stretched and the lower end of the valve shaft 10b is connected to the center of the diaphragm 11 so that the valve body 10 approaches or separates from the valve seat 10a depending on the amplitude of the diaphragm 11. . The valve shaft 10 is installed in the screw hole 4b of the pressure reducing valve cover block 4a.
The spring retainer 13 is screwed so that it can be screwed in the b direction,
The elastic pressing force of the coil spring 12 interposed between the spring retainer 13 and the diaphragm 11 returns the diaphragm 11 to a stable position so that a predetermined flow area is maintained between the valve body 10 and the valve seat 10a. It has become. The bearing member is screwed and fixed by the screw hole 9a threaded in the communication passage L ₂ , and as shown in FIG.
The portion of L ₂ excluding the cross-shaped portion of the bearing member 9 is the effective flow path.

In the throttle valve C, the flow rate adjusting nozzle 14 is rotatably and slidably provided in the drainage side passage, and the flow rate adjusting nozzle 1 is provided by the pressing plate 14a.
The amount of water discharged to the secondary side port 2 is controlled by a variable orifice formed between the outlet flow path L ₃ and the secondary side port 2 due to the spiral shape provided at the tip of the flow rate adjusting nozzle 14. Can be adjusted. That is, the variable orifice is configured so that the water discharge amount can be adjusted by rotating the flow rate adjusting nozzle 14 to open and close the mouth with the spiral shape of the tip.

Further, a drainage port 3 is formed at a right angle to the outlet flow passage L ₃ and coaxially with the flow passage of the secondary side port 2 in the direction opposite to the secondary side port, and the outlet flow passage L ₃ and the drainage port 3 are formed. There is an orifice between and.

The check valve D is obtained by so as to disjunction the valve plate 15 against the valve seat 15a from the downstream side, and introducing the atmosphere from the outside to the negative pressure in the outlet flow path L _3, outlet flow path It is designed to prevent the negative pressure of L ₃ .

As described above, the valve unit of the present invention has a structure in which a large number of valve devices are connected only by the flow paths in three directions formed in the base block 4, so that there is no complicated shape in the connection of each valve device, The processing is extremely simple, and a large number of valve devices can be incorporated into the base block 4 to form a unit, and there is no flow path loss due to connecting piping from the drainage of the solenoid valve A to the introduction into the pressure reducing valve B, and the valve unit The whole is not horizontally long and can be made compact.

[Advantages of the Invention] Since the present invention is configured as described above, a valve device such as a solenoid valve, a pressure reducing valve, a throttle valve, etc. can be incorporated in one base block, and piping can be remarkably omitted to assemble. Workability can be improved, and since the piping is omitted and there is no joint, the reliability of the entire piping system is improved.Furthermore, the solenoid valve and the pressure reducing valve were mounted opposite to each other on the base block. As a result, since the pipe between them is straight and extremely short, the flow path loss is very small, and further, the lateral length of the valve unit can be greatly shortened, and the valve unit can be made compact.

[Brief description of drawings]

FIG. 1 is a plan view of a valve unit of the present invention, FIG. 2 is a sectional view of the same as above, FIG. 3 is a bottom view, FIG. 4 is an exploded perspective view of the same, and FIGS. 5 (a) and 5 (b) are pressure reducing valves. Fig. 6 is a plan sectional view and a front sectional view of a portion, Fig. 6 is a block diagram showing a water channel structure of the same, Fig. 7 is a sectional view showing a conventional example, A is a solenoid valve, B is a pressure reducing valve, and C is a throttle. A valve, L ₁ is an introduction channel, L ₂ is a communication channel, L ₃ is an outlet channel, 1 is a primary side port, 2 is a secondary side port, and 4 is a base block.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shuji Kagaya 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (56) Reference JP-A-61-229036 (JP, A) JP-A-57-77736 (JP, A)

Claims (1)

[Claims] 1. A primary side port connected to a high-pressure water pipe such as a water pipe and a secondary side port connected to a local cleaning unit are provided on an outer surface of a base block, and the primary side port and the secondary side port are base blocks. Introductory channel, communication channel, outlet channel in this order 3
The introduction flow path and the discharge flow path are provided substantially parallel to each other, and the communication flow path is provided so as to be substantially orthogonal to the introduction flow path and the discharge flow path. A throttle valve for varying the amount of water discharged from the cleaning unit is installed in the base block and is provided between the introduction flow path and the communication flow path to open and close the water path at this position and the communication flow. And a pressure reducing valve that is provided between the passage and the outlet flow passage to lower the high pressure on the primary side and keep the pressure on the secondary side constant with respect to the pressure change on the primary side face each other with the base block in between. The valve unit of the sanitary washing device, which is incorporated into the base block as described above.