JPH0720459Y2 - Stopcock valve body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a valve body having a main valve and a starting valve used in a flash valve or the like.

[Prior Art] An example of a conventional flash valve will be described with reference to FIG. Reference numeral 1 denotes a valve casing, which has an inlet 1a and an outlet 1b, and a main valve 2 is provided between them. The main valve 2 is slidably inserted into the opening 3a of the partition wall 3,
A start valve 4 is provided inside thereof. Reference numeral 5 is a push button, and a push rod 5a is connected to the push button 5a.
The starting valve 4 can be tilted by abutting on the shaft 4a.

The main valve 2 includes a metal cylindrical main body 2a, a skirt portion 2b, a cap portion 2c, rubber packings 2d and 2e, and a rubber lip 2.
It is equipped with f etc. The skirt portion 2b is slidably fitted in the opening 3a and guides the stroke of the main valve 2. The rubber packing 2d seals water when the main valve 2 is seated on the partition wall 3, and the rubber packing 2e seals water when the start valve 4 is seated on the main valve 2. The rubber packing 2d is sandwiched between the main body 2a and the skirt portion 2b, and the rubber packing 2e is sandwiched between the nut 2n screwed to the main body 2a and the main body 2a.

The rubber lip 2f contacts the inner surface of the valve casing 1 and seals the upper chamber 6 of the main valve 2. The rubber lip 2f is sandwiched between the main body 2a and the cap portion 2c. The main valve 2 has an opening 2g at the center, and a shaft 4a is loosely inserted in the opening 2g. A small hole 2h is formed in the cap 2c.

In the flash valve having such a structure, when the push button 5 is pushed to tilt the start valve 4, the water in the chamber 6 above the main valve 2 flows out from the partition wall 3 through the small holes 2h and the openings 2g. Flows into the chamber 7 on the side. As a result, the water pressure balance between the chamber 8 upstream of the main valve 2 and the chamber 6 is broken, the main valve 2 is pushed up and opened by the water supply pressure in the chamber 8, and the water supplied from the inflow port 1a is supplied to the chamber 8. It flows out through the chamber 7. On the other hand, during this outflow, water gradually flows into the chamber 6 through the small holes 2h, and the water pressure causes the main valve 2 to be gradually pushed down, and eventually sits on the partition wall 3 to stop water.

[Problems to be Solved by the Invention] In the conventional main valve 2 described above, the rubber packings 2d and 2e and the rubber lip 2f are separate bodies, and a metal fitting (nut 2h) for fixing them is also required. The number of parts was large and the manufacturing cost was high. Also, the rubber lip 2f was easy to flip.

[Means for Solving the Invention] In the valve body of the water stopcock of the present invention, a starting opening is provided in the center of the board-shaped main valve so as to penetrate the board-shaped main valve in the thickness direction, and the starting opening is inserted into the opening. In a valve body of a water shutoff valve, wherein a start valve is provided at one end of the shaft, the start valve is seated on one plate surface of the main valve to close the opening, the main valve being a hard core member. And the rubber encapsulating the core member are insert-molded, and in the rubber portion on the outer periphery of the main valve,
A groove-shaped slit that is recessed from the other disc surface of the main valve and circulates along the peripheral edge of the main valve is provided, and a flexible lip portion is formed by the slit in a portion on the outer peripheral side of the slit. On the one board surface of the central portion of the main valve, the seat portion for seating of the starter valve, which is made of a convex ridge protruding from the rubber on the one board surface, is concentric with the starter opening. It is characterized in that it is formed into a shape.

[Operation] In the main valve of the valve body of the present invention, the rubber member is integrally formed with the core member, which is easy to manufacture and has a small number of parts.

Embodiments Embodiments will be described below with reference to the drawings.

FIG. 1 is a vertical cross-sectional view of a main part of a metered water stopcock having a valve body according to an embodiment of the present invention. Fig. 2 is an overall vertical sectional view of the faucet (a sectional view taken along the line II-II in Fig. 5), Fig. 3 is a side view, Fig. 4 is a plan view, Fig. 5 is a plan view of a valve body, FIG. 6 is a bottom view. FIG. 7 is a sectional view showing a state in which a handle is attached, FIG. 8 is an upside down perspective view showing the inside of the upper casing, and FIG. 9 is an assembly perspective view of an opening / closing spindle.
FIG. 10, FIG. 11 and FIG. 12 are operation explanatory views.

Reference numeral 10 is a valve body, which has a water inlet 12 and a water outlet.
14 has a main valve installation chamber 18 having a main valve 16 and an impeller installation chamber 22 having an impeller 20 therein, and the inlet 12 has a main valve installation chamber 18, a cam installation chamber 24 and a blade. Outlet 14 through the car installation room 22
A flow path is formed so as to communicate with the. Main valve installation room
18 and the impeller installation chamber 22 are hollowed out in a cylindrical shape from the bottom surface of the valve body 10, respectively, and are sealed by screwing caps 26 and 28.

The main valve 16 is formed by insert molding a core member 16A made of metal or the like and a rubber 16B enclosing the core member 16A by insert molding. A slit 16S is provided around the rubber 16B and a lip portion 16D is formed at the edge. When water pressure is applied to the slit 16S, the lip 16D swells, and the side peripheral surface of the main valve 16 is located in the main valve installation chamber 1
It contacts the inner surface of 8 in a watertight manner.

A cylindrical valve seat 30 is hung from a ceiling portion of the main valve installation chamber 18, and the main valve 16 is biased by a compression coil spring 31 and pressed against the valve seat 30. The disc-shaped main valve 16 has a shaft 32 slidably inserted in a central hole (opening) 16a penetrating the axial center thereof, and a start valve 34 is fixed to the lower end of the shaft 32. . The start valve 34 is pressed against the seat portion 36 on the lower surface of the main valve 16 by the spring 31. Sign
Reference numeral 38 denotes a guide member that is integrated with the main valve 16 by being screwed to the core member 16A, slides along the inner peripheral surface of the cylindrical valve seat 30, and moves the main valve 16 in the vertical direction in the drawing. We are providing guidance when moving to. Reference numeral 32C is a C ring for defining the lower limit of the shaft 32.

The main valve 16 and the starting valve 34 form a valve body.

A small hole 16b penetrates the main valve 16, and a cleaning pin 16c is loosely inserted in the main valve 16. Therefore, this main valve 1
In 6, the upstream side and the downstream side are communicated by the small hole 16b, so that the water pressure is applied to both upper and lower surfaces of the main valve 16.

When the shaft 32 is pushed down, the start valve 34
The main valve installation chamber 18 on the lower side of the main valve 16 communicates with the cam installation chamber 24 via the space between the shaft 32 and the inner peripheral surface of the center hole 16a. Then, the water pressure on the lower side of the main valve 16 is lowered, the water supply pressure pushes down the water inlet 16, and the inflow port 12 directly communicates with the cam installation chamber 24, thereby establishing a water passing state.

When the pressing force acting on the shaft 32 is released, the main valve 16
Since the upper side and the lower side are communicated with each other through the small holes 16b and are at equal pressure, the main valve 16 is pushed down by the pressing force of the spring 31 to be seated on the valve seat 30, and the water is stopped.

When the main valve 16 is moved up and down, the cleaning pin 16c is inserted into the small hole 16b, so that the inner peripheral surface of the small hole 16b and the outer peripheral surface of the cleaning pin 16c rub against each other to perform a cleaning action. As a result, it is possible to prevent foreign matter from being caught in the small holes 16b, such as scales and scales.
Therefore, the communication of the small holes 16b is reliably maintained, and the operation of the main valve 16 is always good.

A pivot 40 is erected on the cap 28 of the water turbine installation chamber 22, and a central opening 20a of the impeller 20 is fitted onto the pivot 40, whereby the impeller 20 is rotatable about the pivot 40. is set up. A magnet 42 is fixed to the impeller 20, and when the impeller 20 rotates, the magnet 42 also makes an orbiting motion around the pivot 40, and a change in magnetic flux generated by the motion is on the upper surface of the valve body 10. It can be detected by the fixed magnetic sensor 44. The magnetic sensor
The detection signal 44 is output to a control circuit (not shown in FIGS. 1 and 2) via a lead wire 46.

A disk cam 50 for pressing the shaft 32 downward is installed in the cam installation chamber 24. The cam
The opening / closing spindle 52 is fixed to the lower end of the opening / closing spindle 52 by a nut 53, and the opening / closing spindle 52 penetrates the intermediate casing 54 and the upper casing 56 and projects upward. As shown in FIG. 8, the cam 50 has a cam surface 50 which is inclined over about a half circumference.
A reference numeral 50b is a water stop position where the cam surface 50a is deepest. Further, reference numerals 50c and 50d indicate water passage positions deviated from the cam surface 50a.

The intermediate casing 54 is for sealing the upper surface of the cam installation chamber 24, and has an insertion hole 58 of the opening / closing spindle 52 and an insertion portion 60 into the cam installation chamber 24. A groove 62 is provided around the inner peripheral surface of the insertion hole 58, and the groove 62 is a passage.
It communicates with the outside of the faucet via 64. Reference numerals 66, 68, and 70 denote O-rings for sealing, respectively. The passage 64
Even if the O-ring 68 deteriorates and leaks water from the cam installation chamber 24, the water is discharged to the outside of the faucet so that the water does not enter the upper electric control circuit section.

An armature stator 72 is slidably fitted on the opening / closing spindle 52 in an upper casing 56, and an armature 74 made of an iron piece is fixed to the armature stator 72 by a spring pin 76. As clearly shown in FIG. 9, the armature stator 72 has a small diameter portion 78 extending upward in FIG. 2 along the opening / closing spindle 52, and the small diameter portion 78 is located at the axis of the armature stator 72. Notch surface 80
A notch 80 is provided such that the angle between a and 80b is 135 °.

An actuator 82 for rotating the armature stator 72 is fixed to the opening / closing spindle 52 with a screw (not shown). The actuator 82 has a disk shape and is integrally formed with a convex portion 84 that engages with the notch 80 of the armature stator 72. The convex portion 84 is 45 with respect to the axis of the actuator 82.
It is a fan type with an angle of °. Further, a magnet 86 is embedded in the operator 82, and an opening 88 bored in a radial direction of the operator and a steel ball 92 press-fitted into the opening 88 via a spring 90 are provided. .

As clearly shown in FIG. 8, a ring 94 is integrally formed on the upper casing 56 so as to surround the actuator 82, and a slit 96a with which a steel ball 92 is engaged with the ring 94 and a ring 96a. The slits 96a and 96b are formed such that the angle between the slits 96a and 96b around the opening / closing spindle 52 is 90 °.

As shown in FIGS. 8 and 9, a torsion coil spring 98 is provided as a return spring between the actuator 82 and the armature stator 72.
Is installed, one end 98a of the torsion coil spring 98 is fixed to the armature stator 72, and the other end 98b is a ring 94.
It is locked to a stopper 100 provided on the.

As shown in FIG. 8, a circuit board 102 on which a control circuit member is mounted is installed in the upper casing 56.
Is provided with a reed switch 104 capable of detecting the proximity of the magnet 86 of the actuator 82.

Above the open / close spindle 52 is a cylindrical setting spindle 106.
Is fitted. The upper end of the setting spindle 106 projects to the outside of the fixed water stopcock, and a gear 108 is provided at its lower end with a screw 109.
It is fixed by. Reference numeral 106c is the setting spindle 106
C-rings are systematically attached to the opening / closing spindle 52 at the upper and lower ends of the spindle and position the spindle 106.

A code switch 114, in which a shaft 112 is rotated by a gear 110 that meshes with the gear 108, is installed in the upper casing 56. In addition, as shown in FIG. 7, in the upper casing 56,
A magnet 11 for attracting and holding the armature 74.
6 is installed, and a solenoid 118 for generating a magnetic flux in the direction opposite to the magnetic flux direction of the magnet 116 when energized is wound around the magnet 116. The magnet 116 is provided integrally with the iron core 116a, and the armature 74 can be attracted to the end of the iron core 116a. The solenoid 118 is fitted on the iron core 116a.

The upper casing 56 is provided with a stopper 74S for the armature 74, and the armature 74 is rotatable within a 90 ° range between the stopper 74S and the magnet 116. The handle 122 is provided with a pointer (not shown) for indicating the amount of stored water, and the faucet mounting plate 127 or the like is provided with a scale (not shown) indicating the amount of stored water.

As shown in FIG. 7, handles 120 and 122 are fitted onto the opening / closing spindle 52 and the setting spindle 106, respectively, and fixed by screws 124 and nuts 126.

Reference numerals 128 and 130 in FIG. 2 denote O-rings. Also, reference numeral 13
Reference numeral 2 denotes a lead wire for connecting the control circuit on the circuit board 102 to an external battery or a display device (not shown),
It is drawn out from the opening 134 of the upper casing through the cord packing 133 to the outside of the fixed amount of water stop.

Next, the operation of the fixed-quantity water stopcock will be described with reference to FIGS. 10 to 12 are bottom views of the upper casing for showing the movement of the armature 74 and the like in the upper casing 56, and FIG. 10 (b) is a sectional view taken along the line BB of FIG. Shows the movement of.

Fig. 10 shows a water-stop state, and in this state,
The armature 74 is separated from the magnet 116, is biased by the torsion coil spring 98, and is pressed against the stopper 74S (FIG. 8 is also in this state).
Means that the water stop position 50b that hits the center of the cam surface 50a is the shaft
Located above 32, the main valve 16 is seated on the valve seat 30 and is in a water-stopped state. (Fig. 2).

In addition, in this water-stop state, the actuator shown in FIG.
One side surface 84a of the convex portion 84 of the 82 is an armature stator 74
Is in contact with one of the cutout surfaces 80a of the small diameter portion 78. Also,
A part of the steel ball 92 is engaged with the one slit 96a, and the open / close spindle 52 is in a slightly locked state.

When stopping water quantitatively with this fixed water stopcock,
Grasping 122 and turning the setting spindle 106, the pointer is adjusted to the scale so that the desired water storage amount is obtained. Setting spindle 106
When is rotated, the shaft 112 of the cord switch 114 is rotated through the gears 108 and 110, and the amount of stored water is set. This set value is input to the control circuit of the circuit board 102.

Then, the open / close spindle is rotated 90 ° counterclockwise in FIG. 10 (direction of arrow X in FIG. 9). Then, the cam 50 is rotated until the water passage position 50c of the cam 50 is above the spindle 32, the spindle 32 is pushed down, the main valve 16 is opened, and water passage is started. Further, at this time, the notch surface 80a is pushed by the convex side surface 84a, and the armature stator 72 also rotates 90 °. Then armature 74
Also rotates 90 ° and abuts and is held by the magnet 116 (Fig. 11).

The impeller 20 rotates with the start of water flow, and this rotation is detected by the magnetic sensor 44. The control circuit counts the number of rotations of the impeller 20, and energizes the solenoid 118 when the number of counts corresponding to the set amount of stored water is reached. As a result, the magnetic flux of the magnet 116 is canceled, the armature 74 is separated from the magnet 116, and the armature stator 7
2 is biased by the torsion coil spring 98 to rotate in the arrow Y direction in FIG. At this time, since the notch surface 80a is in contact with the convex side surface 84a, the actuator 82 is also rotated 90 °. For this reason,
The open / close spindle 52 also rotates 90 ° in the direction of the arrow Y, and the cam 50 also
It rotates 90 ° and the water stop position 50b moves above the shaft 32. As a result, the main valve 16 is seated on the valve seat 30 and the water is stopped. As mentioned above, since this seating speed is low,
Water hammer is eased.

When performing continuous water discharge from the water-stop state shown in FIG. 10, the opening / closing spindle 52 is moved clockwise in FIG. 10 (arrow Y in FIG. 9).
Direction). Then, in the cam 50, the water stop position 50d moves above the shaft 32, and the shaft 32 is pushed down to open the main valve 16 and start water passage. When the opening / closing spindle 52 is rotated 90 °, the steel ball 92 engages with the slit 96b, and the opening / closing spindle 52 is slightly locked. In this case, the convex portion 84 only rotates within the notch 80, and the armature 74 does not rotate (FIG. 12). Then, unless the user of the faucet turns the opening / closing spindle 52 in the direction of arrow X in FIG. 9, this water flow state will continue forever. The user opens and closes the open / close spindle by the arrow X in FIG.
Turning it in the direction returns to the water-stop condition shown in Fig. 10.

Since the rubber 16B and the core member 16A are integrally molded, the main valve 16 has a small number of parts and is easy to manufacture. Also, the lip portion 16D does not turn over.

The fixed-quantity water stopcock of this embodiment has the handle 120122 coaxially and compactly arranged, and has a simple external configuration. Moreover, the space occupied by the handle and the spindle is halved, the entire faucet is small, and the installation space for the fixed water stopcock is small.

In addition, in the above-mentioned embodiment, the integration of the flow rate and the comparison with the set water storage amount, and further, the valve closing drive and the like are performed by an electric control method, and there is no error or malfunction, and an accurate quantitative water discharge is ensured. I can do it. The water hammer when the water is stopped is also slight as described above.

The valve body of the present invention can be applied not only to a fixed water stopcock, but also to a faucet for a toilet bowl or the like.

[Effect] As described above, the valve body of the present invention has a small number of constituent parts of the main valve, is easy to manufacture, and is convenient to handle.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a main part of a metered water stopcock using a valve body according to an embodiment of the present invention. FIG. 2 is an overall longitudinal sectional view of the water faucet, FIG. 3 is a side view, FIG. 4 is a plan view, FIG. 5 is a plan view of a valve body, and FIG. 6 is a bottom view. FIG. 7 is a sectional view showing a state in which a handle is mounted, FIG. 8 is an upside down perspective view showing the inside of the upper casing, FIG. 9 is an assembly perspective view of an opening / closing spindle, FIG. 10 and FIG. And FIG. 12 is an operation explanatory view. FIG. 13 is a sectional view of a conventional faucet. 10 ... Valve body, 16 ... Main valve, 16a ... Opening, 16b ... Small hole, 16c ... Cleaning pin, 20 ... Impeller, 30 ... Valve seat, 34
… Start valve, 52… Open / close spindle, 74… Armature, 82
… Actuator, 106… Setting spindle, 114… Code switch.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Tsuka ▼ Ryohei Ryohei 3 77-77 Minato-cho, Tokoname City, Aichi Prefecture Inax Enokido Factory (72) Inventor Yu Nakano 1 Noda, Oita-cho, Niwa-gun, Aichi Prefecture Address Tokai Rika Electric Co., Ltd. (72) Inventor Kazuhiko Yamada No. 1 Noda, Oguchi-machi, Niwa-gun, Aichi Prefecture Toda Rika Electric Co., Ltd. (72) Yukio Seki 4 Station, Nakamura-ku, Nagoya-shi, Aichi No. 11-27 Tokai Rika Sales Co., Ltd. (56) References Showa Sho-191-17979 (JP, U) Showa 62-117363 (JP, U) Showa 62-104080 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A start-up opening is provided in the center of the board-like main valve so as to penetrate through the board-like main valve in the thickness direction, and a start-up valve is provided at one end of a shaft inserted through the opening. Is a valve body of a water stopcock that can be seated on one plate surface of the main valve to close the opening, wherein the main valve is insert-molded with a hard core member and a rubber encapsulating the core member. In the rubber portion on the outer circumference of the main valve, a groove-shaped slit that is recessed from the other disc surface of the main valve and circulates along the peripheral edge of the main valve is provided, and the slit is formed by the slit. A flexible lip portion is formed in a portion on the outer peripheral side of the slit, and in the one board surface of the central portion of the main valve, a convex strip raised from the rubber of the one board surface is formed. The seat portion for seating the start valve is formed concentrically with the start opening. The valve body of the water stop valve, characterized in Rukoto.