JPH053373U - Communication pack to the water faucet valve seat - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] When tap water is directly drawn from the valve seat of the faucet to the faucet body, the joint between the faucet valve seat and the water conduit is easily and surely made airtight. [Composition] A communication packing body 3 formed of an elastic material into a tubular shape
In the upper part of 0, a small diameter part that fits inside the lower end of the water conduit 11 inserted through the upper opening 7 of the valve chamber cylinder 6 is continuously provided, and a concave groove is provided in the circumferential direction on the peripheral surface of the communication packing body 30. further,
The valve seat cylinder 2 of the faucet body 1 is provided at the bottom of the communication packing body.
Is provided with an enlarged diameter portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a communication packing for a water faucet valve seat.

[0002]

[Prior Art]

 Conventionally, a water tap for general households is designed to open and close a valve called a top of the tap by turning a manual cock. When connecting a solenoid valve, a water purifier, or the like (hereinafter, referred to as a water treatment device) to the water faucet, a method of connecting the water treatment device to the water supply port of the faucet directly or via a hose, It is roughly classified into a system in which the faucet manual cock is removed and the water treatment device is connected to the upper part of the faucet using a manual cock connection mechanism (hereinafter referred to as a top-up system).

As shown in FIG. 4, a typical example of the above-mentioned conventional placement method is that the outer diameter of the valve chamber cylinder 6 of the faucet body 1 is approximately the same as the outer diameter of the water treatment apparatus 10a at the lower part. A flange portion 17 having an outer diameter of 10 is provided, and the water treatment device 10a places the flange portion 17 on the valve chamber cylinder 6 and screws it onto the outer peripheral thread 4 of the valve chamber cylinder 6. The fastening ring 18 is adapted to be fastened to the faucet body 1.

A water conduit 11 is hung from the lower surface of the water treatment device 10a, and the lower end of the water conduit 11 is located above the valve seat cylinder 2, and the lower end of the water conduit 11 and the valve seat cylinder are connected to each other. An O-ring 30a is interposed between the two and the whole of the water guiding water flows into the water guiding pipe 11 from the valve seat cylinder 2 and is guided by the water guiding pipe 11 and connected above the faucet body 1. After flowing into the water treatment device 10a and performing a treatment in accordance with the purpose in the water treatment device 10a, inside the valve seat cylinder 2 outside the water conduit 11 on the lower surface of the water treatment device 10a. It is sent to the inside of the valve chamber 3 through the secondary side water passage 13 that opens to the outside, and flows out from the water supply port 1b. The water treatment device 10a can be envisioned to have various treatments such as one that simply opens and closes the flow path with an electromagnetic valve, one that filters tap water. The tap water can also be used for electrolyzing it to separate it into alkaline ionized water and acidic ionized water. In this case, however, the total amount of treated water cannot flow out from the water supply port 1b, so the secondary side It suffices to branch off in the middle of the flow path and separately provide a separate water supply port.

[0005]

[Problems to be solved by the device]

 However, in the above conventional mounting method, the length of the water conduit 11 corresponds to the length of the valve seat cylinder 2 of the faucet, more precisely, the distance from the top surface of the valve seat cylinder 2 to the top surface of the valve seat cylinder 6. If it is not set to a predetermined value, there is a problem that the airtight function of the O-ring 30a is affected.

The distance from the top surface of the valve seat cylinder 2 to the top surface of the valve seat cylinder 2 has some differences depending on the faucet manufacturers, and as a result, at present, even if there is this dimensional difference, it is certain. In order to maintain airtightness, a plurality of O-rings 30a having different thicknesses are prepared, and the dimensional difference is absorbed by the change in the thickness of the O-rings 30a. It is complicated to select the water treatment device 10a, and in reality, when the water treatment device 10a is installed, even if the O-ring 30a having a certain thickness can stop the water, the O-ring 30a does not have sufficient airtightness. If the water is stopped at, the airtightness may be lost due to temperature change or some fatigue of the O-ring 30a, etc., and there is a drawback that the water stop cannot be reliable. It was

Therefore, the present invention has been made to solve the above problems, and an airtight connection between a valve seat portion of a water faucet and a water conduit for guiding tap water from the valve seat portion to an intended location is easy (installation is possible). The purpose is to provide reliable communication packing to the water faucet valve seat.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the structure of the present invention, which is based on the above-mentioned utility model registration claim, has the above-mentioned object. 6, a small diameter portion 33 that fits inside the lower end of the water conduit 11 inserted through the upper opening 7 is provided continuously, and a concave groove 31 is provided in the circumferential direction on the peripheral surface of the communication packing main body 30. At the lower part of 30, a technical means is provided in which an enlarged diameter portion 32 into which the valve seat cylinder 2 of the faucet body 1 is fitted is provided.

[0009]

[Action]

 Therefore, in the communication packing to the water faucet valve seat of the present invention, the communication packing main body 30 is made of an elastic material and is formed into a tubular shape. Therefore, the communication packing main body 30 communicates the valve seat cylinder 2 and the water conduit 11 in an airtight manner. Has the same function as the conventional O-ring 30a, but since it has a cylindrical shape, the deformation distance (expansion / contraction distance) due to elasticity can be increased, and the valve seat cylinder 2 can be moved from the top surface to the valve seat cylinder 2 It is designed to avoid the influence of dimensional accuracy error of the distance to the top surface.

When the communication packing main body 30 is formed of an elastic material into a tubular shape, the deformation distance (dilation distance) is long, but the communication packing main body 30 itself may be bent. The bending of the communication packing main body 30 itself does not affect the communication and the airtight action, but if the contact between the water guiding pipe 11 and the valve seat cylinder 2 at the upper and lower ends of the communication packing main body 30 is displaced by this bending, this part It can be assumed that the airtightness is not maintained. However, according to the present invention, the small diameter portion 33 that fits inside the lower end of the water conduit 11 that is inserted from the upper opening 7 of the valve chamber cylinder 6 is fitted to the upper part of the communication packing body 30, and the valve seat cylinder 2 of the faucet body 1 is fitted to the lower part. Since the upper and lower ends are fitted to each other by providing the enlarged diameter portion 32, the upper and lower portions of the communication packing main body 30 have a function of ensuring airtightness without being easily displaced.

Further, the concave groove 31 of the present invention firstly has an effect of setting the deformation distance (expansion / contraction distance) longer by crushing the concave groove 31 when a pressing force is applied to the communication packing body 30. Secondly, when the communication packing body 30 is bent in the middle, the concave groove 31 divides the force of the bending groove, and the concave groove 31 is deformed in a step shape to bend. This has the effect of minimizing the displacement of the upper and lower parts of the communication packing body 30.

[0012]

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

In the figure, 1 is a faucet body. The faucet body 1 is an existing one, and has a water supply connection port 1a at one end and a water supply port 1b at the other end, and the water supply connection port 1a and the water supply port 1b are connected by a faucet flow path A. A valve seat portion B having a valve seat cylinder 2 is interposed in the middle of the faucet passage A, and a valve chamber cylinder 6 is erected on the valve seat portion B above the valve seat portion B.

The valve chamber cylinder 6 is provided with an inner peripheral thread 5 on the inner peripheral surface and an outer peripheral thread 4 on the peripheral surface. A valve rod guide piece having a thread to be screwed into the thread 5 is accommodated, and a screw hole for screwing the valve rod is provided in this valve rod guide piece, and the lower end of the valve rod screwed into this screw hole is provided. A handle is provided at the upper end of the top (valve body), but this valve rod guide piece, valve rod, top and handle are removed in this embodiment. Normally, the upper opening 7 of the valve chamber cylinder 6 is attached by screwing a cap penetrating the valve rod onto the outer peripheral thread 4, but this cap is also removed in this embodiment.

That is, the faucet body 1 is a conventionally known one that uses only the body part from which the above-mentioned parts have been removed. However, when separately manufacturing the faucet body 1, Needless to say, the peripheral thread 5 may be omitted because it is unnecessary.

Reference numeral 30 denotes a communication packing main body which is a main part of the present invention, which is formed into a tubular shape with an elastic material, and is fitted into the lower end of the water conduit 11 which is inserted into the upper opening 7 of the valve chamber cylinder 6 at the upper part. A small diameter portion 33 is continuously provided, and a concave groove 31 is provided in the circumferential surface of the communication packing main body 30 in the circumferential direction. Further, the valve seat cylinder 2 of the faucet main body 1 is provided below the communication packing main body 30. The expanded diameter portion 32 to be fitted is provided.

The communication packing main body 30 is made of a material known as a conventional packing material such as synthetic resin or synthetic rubber, the inner diameter of which is substantially the same as the inner diameter of the valve seat portion B, and the outer circumference is the inner diameter of the valve chamber cylinder 6. It is smaller than the above and has a gap with the valve chamber cylinder 6. Further, the length of the communication packing main body 30 (the length indicated by the symbol L in the figure) may be set appropriately, and it is preferable that the length is 3 mm or more in the trial manufacture. Of 10 mm was used.

The small diameter portion 33 has an outer diameter that can be press-fitted into the lower portion of the water conduit 11, and the lower end of the small diameter portion 33 is formed in a step shape, and the lower surface of the water conduit 11 is on this step plane. When the water conduit 11 is pushed down, the pushing down force is surely transmitted to the communication packing body 30.

Further, the concave groove 31 is provided in the shape of a slit having an appropriate width and is provided over the entire circumference in the circumferential direction. In the illustrated example, the concave groove 31 is provided in a plurality of steps, but the concave groove 31 has one step. You can see it.

Further, the enlarged diameter portion 32 has the valve seat cylinder 2 inserted therein, and in the illustrated example, the inner diameter of the lower end of the communication packing body 30 is enlarged. It is desirable to fit the valve seat cylinder 2 in the expanded diameter portion 32 firmly, but it is acceptable to insert the valve seat cylinder 2 slightly loosely or with some play. Is.

In the figure, 10 is a flow path opening / closing device as one embodiment of the water treatment device, and the flow path opening / closing device 10 connects the downstream end of the primary side flow path 12 communicating with the water conduit 11 with a ring. Opening at the downstream end of the primary side flow passage 12 and the upstream end of the secondary side flow passage 13 is concentrically opened at the center, and the downstream end of the primary side flow passage 12 and the secondary side flow passage 13 are opened. A diaphragm valve 14 is placed above the upstream end of the diaphragm valve 14, and the diaphragm valve 14 is opened and closed by energizing the solenoid coil 20.

In principle, the diaphragm valve 14 ascends and descends by ascending and descending the solenoid iron core 21 as in a conventionally known solenoid valve. The solenoid coil 20 is normally demagnetized, and the solenoid iron core 21 is not loaded by its own weight. It is lowered by the urging force of the spring 22, and the downstream end of the primary side flow passage 12 and the upstream end of the secondary side flow passage 13 are both closed by the diaphragm valve 14, and the solenoid When the coil 20 is energized and excited, the solenoid iron core 21 rises and the diaphragm valve 14 is pushed up by the water pressure in the primary side flow passage 12 so that the primary side flow passage 12 and the secondary side flow passage 13 communicate with each other. It has been done.

If the diaphragm valve 14 is opened and closed only by the electromagnetic force of the solenoid coil 20, a large force against the water pressure is required. Therefore, in the illustrated example, the primary side flow passage 12 compatible portion of the diaphragm valve 14 is shown. A first small through hole 16 is provided in the upper and lower sides of the diaphragm valve 14 so that the diaphragm valve 14 is not pushed up by the water pressure in the primary side flow passage 12 at all times. The diaphragm valve 14 is prevented from being pushed down against the water pressure in the side flow passage 12, and the solenoid iron core 21 can be brought into and out of contact with the diaphragm valve 14. The solenoid iron core 21 of the diaphragm valve 14 is The second small through hole 15 communicating with the secondary side flow path 13 is opened at the portion where the lower surface of the solenoid valve contacts, and when the diaphragm valve 14 is pushed down and closed, the solenoid core 21 When the second small through hole 15 is closed and pushed down, and the diaphragm valve 14 is opened, the solenoid core 21 rises apart from the diaphragm valve 14 so that the second small through hole 15 communicates and the upper surface side of the diaphragm valve 14 moves. Due to the communication of the second through hole 15, the pressure in the primary side flow passage 12 is reduced, and the diaphragm valve 14 is pushed up by the water pressure in the primary side flow passage 12, so that the solenoid coil 20 has a small capacity. It is trying to change.

In the flow path opening / closing device 10 of the illustrated example, a proximity switch is housed in the sensor mounting portion 24, and when a human hand or the like approaches the proximity switch, the energizing circuit for the solenoid coil 20 is closed. It's done. After the proximity switch is closed and the solenoid coil 20 is energized and the diaphragm valve 14 is opened, when the passage of a predetermined time is detected by a timer, the energization of the solenoid coil 20 is automatically cut off, or When the proximity switch detects the proximity of the hand of the person for the second time, it is possible to realize a variety of implementations in the related art of automatically shutting off the power supply to the solenoid coil 20.

[0025]

As described above, according to the present invention, since the communication packing main body 30 is formed of the elastic material in a tubular shape, the elastic deformation distance (expansion / contraction distance) can be long, and the valve seat cylinder 2 can be provided with a valve seat from the top surface thereof. It is possible to provide a communication packing to a water faucet valve seat that avoids the influence of a dimensional accuracy error of the distance to the top surface of the cylinder 2 and maintains a highly reliable hermeticity.

Further, according to the present invention, the small diameter portion 33 which is fitted into the lower end of the water conduit 11 which is inserted through the upper opening 7 of the valve chamber cylinder 6 is provided in the upper portion of the communication packing body 30, and the valve seat tube 2 of the faucet body 1 is provided in the lower portion. Since the upper and lower ends are fitted with each other by providing the enlarged diameter portion 32 into which the upper and lower parts are fitted, even if the communication packing main body 30 is temporarily bent, the upper and lower parts do not move easily and the airtightness is secured. The communication packing to the seat can be provided.

Further, in the present invention, since the concave groove 31 is provided, when the communication packing body 30 is pressed, the concave groove 31 is crushed and the deformation distance (expansion / contraction distance) is set longer. Further, when the communication packing body 30 is not bent in the middle, the concave groove 31 divides the force of the bending groove, and the concave groove 31 is deformed in a step shape to bend. It is possible to provide a highly reliable communication packing for a water faucet valve seat that minimizes the displacement of the upper and lower parts of the communication packing main body 30 and is easy to install.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a communication packing for a water faucet valve seat of the present invention.

FIG. 2 is a longitudinal sectional view of a main part.

FIG. 3 is a vertical cross-sectional view of a main part at the time of compression.

FIG. 4 is a vertical sectional view of a conventional example.

[Explanation of symbols]

 1 Faucet Main Body 2 Valve Seat Cylinder 6 Valve Chamber Cylinder 7 Upper Opening 11 Water Conduit 30 Communication Packing Body 31 Recessed Groove 32 Expanded Part 33 Small Diameter Part

Claims (1)

[Claims for utility model registration] [Claim 1] A water guide pipe (11) to be inserted through an upper opening (7) of a valve chamber cylinder (6) into an upper part of a communication packing body (30) formed of an elastic material in a cylindrical shape. ), A small-diameter portion (33) fitted inside the lower end of the communicating packing body (30) is continuously provided, and a concave groove (31) is circumferentially provided on the peripheral surface of the communicating packing body (30). A communication packing to a water faucet valve seat, which is provided with an enlarged diameter portion (32) into which a valve seat cylinder (2) of the faucet body (1) is fitted in a lower portion.