JPH07790Y2 - Water faucet - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention allows the cylinder valve to slide up and down between the inner peripheral surface of the valve body case and the outer peripheral surface of the liner by operating the handle to adjust the outlet opening arbitrarily. Regarding the faucet.

(Prior Art and Problems Thereof) Conventionally, this type of faucet has a cylindrical shape with a strainer between the inner peripheral surface of the valve body case and the outer peripheral surface of the liner, and a straight plate with a vertical cross section. The valve is arranged such that the inner and outer surfaces of the valve body case and the outer surface of the liner are in sliding contact with each other, and a primary side sealing material is provided between the inner surface of the cylinder valve and the outer surface of the liner. Further, a secondary side sealing material is provided between the outer surface of the cylinder valve and the inner peripheral surface of the main body case (Japanese Patent Laid-Open No. 60-249784).

(Problems to be solved by the invention) In this type of faucet, water flowing out into the flow path by opening the outlet is discharged while flowing to the sealing surface which is sealed by the sealing material in the flow path. It flows to the water port, but when it flows, water pressure is applied to each side of the cylinder valve.

However, if the cylinder valve is configured as in the above-mentioned conventional technique, the sealing surfaces on the primary side and the secondary side are displaced in the front-rear direction, and as a result, the pressure receiving area and the lower side of the cylinder valve which receive water pressure from above. There was a difference in the pressure receiving area receiving the water pressure from.

That is, due to the above factors, in the conventional technology, the pressure receiving area that receives the water pressure from the lower side becomes wider (for the lower end surface of the cylinder valve), and the cylinder valve is likely to be pushed up to change the opening state of the outlet. Therefore, there is a disadvantage that the amount of water that is initially set or more is spouted, and the spouted amount is arbitrarily changed against the intention of the user.

The present invention has been made in view of such problems of the prior art, and an object thereof is to provide a pressure receiving area for receiving water pressure from above the cylinder valve and a pressure receiving area for receiving water pressure from below. Is to provide a faucet that is substantially the same.

(Means for Solving the Problem) The technical means made by the present invention to achieve the above-mentioned object is a valve body case in which a tubular liner having a fluid inlet and an outlet and having an internal space as a water passage is provided. The cylinder valve is arranged inside the main body case and the outer peripheral surface of the liner, and a sealing material is circumferentially interposed between the main body case and the outer peripheral surface of the liner. In the water faucet that opens and closes the outlet, the cylinder valve has a primary inner surface that is in sliding contact with the outer peripheral surface of the liner and a secondary outer surface that is in sliding contact with the inner peripheral surface of the valve body case, and are configured on the same vertical line. That is.

(Operation) By the above-mentioned technical means, the primary side seal surface and the secondary side seal surface are located on the same line in the vertical direction, and the pressure receiving area that receives water pressure from above the cylinder valve and the pressure receiving area that receives water pressure from below The area is almost the same, the cylinder valve is evenly water pressured, and the initially set position is reliably maintained.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.
In this embodiment, the following hot and cold water mixing tap will be described, but the present invention is not limited to this, and it goes without saying that the present invention is also applicable to other mixing taps or single taps. .

(A) is a valve body, and in the valve body (A), the lower left and right spaces in the valve body case (A ') are a hot water flow path (c) and a water flow path (d), respectively, and hot water is mixed thereabove. A liner (1) internally provided with a transmission mechanism (B) for converting the turning operation of the lever handle (12), which is made during the adjustment, into the forward / backward operation and transmitting it to the hot and cold water control valve body (16) is attached, and the liner ( A cylinder valve (2) that slides on the outer periphery of (1) and adjusts the discharge amount of mixed water is provided, and a desired portion is sealed by a sealing material (3).

The valve body (A ') is, for example, a hollow body case body (a ₁ ) having a substantially inverted T-shaped cross section, and a hollow body cartridge case (a ₂ ) with both ends opened is screwed onto the inner peripheral surface of the case body. The space is used as a space (4) for arranging the liner (1) and the lower space is used as a valve chamber (5). The space provided between the cartridge case (a ₂ ) and the case body (a ₁ ). The (groove) is used as a mixed water channel (6).

The liner (1) has a hollow cylindrical shape in which the transmission mechanism (B) is internally provided in the inner space and has open both ends, and a step portion (7) is provided in a middle height portion of the outer periphery thereof, and a flange portion (8) provided below the step portion ) And the convex portion (9) are fitted in the valve body case (A ′) and fixed by a nut (10) from above.

The lower end opening is used as a fluid inlet (1b), and an outlet (mixed water outlet) (1a) is opened in the outer peripheral surface () below the step (7).

Further, in the present embodiment, a short tubular intermediate ring (a ₃ ) is screwed into the valve body case (A ′) by engaging the flange portion (a ₃ ′) of the intermediate ring (a ₃ ). a ₃ ″) so that the inner peripheral surface () is in line with the outer peripheral surface () below the stepped portion (7) of the liner (1). A seal material (3a) is installed around the outer surface of the cylinder valve (2) ( ) And the inner peripheral surface () of the valve body case (A ') are sealed with a secondary side sealing surface (3a'), and a cylinder valve (2) for adjusting the discharge amount of the mixed water is arranged and then screwed. To wear.

The secondary side sealing material (3a) is provided around the inner peripheral surface () using an O-ring or the like which has an excellent sealing effect and also has a static effect.

The cylinder valve (2) includes a first valve body (2a) locked to the protrusions (12b) (12) of the fitting ring (12a) of the lever handle (12), and the first valve body (2a). ) The second valve body (2
b) and is divided into two parts and pivotally attached to each other so as to reduce the torque when the lever handle (12) is rotated.

The first valve body (2a) is first cylindrical erected relative top flange portion of the synthetic resin material such as polyacetal (2a ₁₎ in the bearing piece _{(2a 2) (2a 2)} , the liner (1 ) Has an inner diameter that makes sliding contact with the outer peripheral surface (7b) above the stepped portion (7), and has a collar portion (2a ₁ )
A concave groove (2a ₃ ) and a ridge (2a ₄ ) are provided around the lower outer peripheral surface.

The second valve body (2b) is made of a metal material such as brass and has a step-like overall cylindrical shape, and a protrusion portion pivotally attached to the concave groove (2a ₃ ) at the inner upper end of the upper cylinder portion (2b '). (2b ₁ ) is provided around, and a groove (2b ₂ ) pivotally attached to the protruding portion (2a ₄ ) of the first valve body (2a) is provided below the outer peripheral surface ( Secondary side outer surface ( ) On the same line as the inner peripheral surface of the lower cylindrical portion (2b ″) (primary side inner surface ( ) Is positioned (see FIGS. 2 and 3).

Then, the inner surface of the primary side of the lower tubular portion (2b ″) ( ) Around the surface of the liner (1) for the mixed water outlet (11), a primary side seal material (3b) (3b) is provided around, and a primary side inner surface of the cylinder valve (2) ( ) And the outer peripheral surface () of the liner (1) are sealed at the primary side sealing surface (3b ').

The primary side sealing material (3b) is the secondary side sealing material (3
An O-ring or the like may be used as in the case of a) and is not limited in any way and is optional.

Thus, the second valve body (2b) is inserted from above the liner (1), is screwed an intermediate ring (a ₃₎ to the valve body case (A '), the first valve body (2a) from above the pivot When mounted, the cylinder valve (2) is configured, and the upper inner peripheral surface (2a ₅ ) is brought into sliding contact with the upper outer peripheral surface (7b) of the liner (1), and the secondary outer peripheral surface ( ) Is in sliding contact with the inner peripheral surface () of the intermediate ring (a ₃ ), and the secondary outer peripheral surface (). ) And the lower cylindrical portion (2b ″) provided on the same line in the vertical direction as the primary inner peripheral surface ( ) Is the outer peripheral surface () below the step (7) of the liner (1)
Slide on.

As a result, the primary-side sealing surface (3b ') and the secondary-side sealing surface (3a') are positioned on the same line in the vertical direction, and as a result, the water pressure from above applied to the cylinder valve (2) during water circulation is received. The areas of the pressure receiving portion () () and the pressure receiving portion () that receives water pressure from below are substantially the same.

By the way, the frictional force of the pivotal connection between the first valve body (2a) and the second valve body (2b) is due to the friction between the inner peripheral surface of the second valve body (2b) and the outer peripheral surface of the liner (1). Less than force.

Further, regarding the transmission mechanism (B), on the inner peripheral surface of the operation cap (13) fitted integrally with the fitting ring (12a) of the lever handle (12),
The tubular part of the moving shaft (14) with the upper part fitted is screwed into the upper space partitioned by the step (7) of the liner (1), and is inserted into the insertion port (7a) of the step (7). From the space below it,
While sensing the temperature of the mixed water and automatically controlling the hot and cold water control valve body (16), one end of a conventionally known temperature sensing part (15) is inserted and abutted and attached below the moving shaft (14), A tubular member (20) is inserted and attached to the other end, and a hot and cold water control valve body (16) is attached to the tubular member (20) by abutting attachment.

Further, in the figure, (17) is a handle support member, (18) is a handle pressing member, and (19) is a lid.

Therefore, in this embodiment, first, the lever handle (1
2) Turn the lever sideways to move its lever handle (12).
The transmission mechanism (B) attached to the operation cap (13) that is fitted into the fitting ring (12a) of FIG. Arrange the body (16) at an appropriate position to adjust the mixing of hot and cold water.

At this time, hot water and water are temporarily supplied from the hot water inflow hole (21) on the lower surface of the tubular member (20) and the water inflow hole (22) on the side surface of the tubular member (20).
After flowing into the internal space (mixing chamber) (20a) of the mixture and being mixed, it flows out from the mixed water outlet hole (23) above it.

Then, when the lever handle (12) is pushed down,
The protrusion (12b) of the fitting ring (12a) of the lever handle (12)
The cylinder valve (2) locked to (12b) moves upward to discharge the mixed water.

The mixed water flowing out from the mixed water outlet (1a) flows into the cylinder valve intervening space (24) between the valve body case (A ') and the liner (1), and the secondary side seal material (3a) and the primary seal material (3a). It flows to the secondary side seal surface (3a ') and the primary side seal surface (3b') which are sealed with the side seal material (3b), and the water pressure of the mixed water is from above the cylinder valve (2). The pressure receiving part () () receiving the water pressure and the pressure receiving part () receiving the water pressure from below are evenly applied, and the cylinder valve (2) discharges the same amount of water at that position through the mixed water flow path (6). Discharge from (25).

In this embodiment, the secondary side sealing material (3a) is provided on the valve body case (A ') side, and the primary side sealing material (3b) is provided on the cylinder valve (2) side. Assuming that the seal surface (3a ') and the primary side seal surface (3b') are located on the same line in the vertical direction, the secondary side seal material (3a) is connected to the cylinder valve (2) side and the primary side. Side sealing material (3
Of course, b) may be provided on the liner (1) side, respectively.

Further, the valve body case (A ′) will be described with the intermediate ring (a ₃ ). The same protrusion surface (step portion) is provided on the valve body case (A ′) and the step portion of the liner (1) ( 7) It may be provided so as to be on the same line as the lower outer peripheral surface ().

In the embodiment detailed above, the turning operation of the lever handle is converted into the advancing / retreating operation to operate the cylinder valve up and down.
It suffices that the cylinder valve is moved up and down by the handle operation to open and close, and the handle operation is not limited to rotation, vertical movement, and the like, and the handle configuration is not limited to the lever type and can be appropriately changed. .

(Effects of the Invention) The present invention provides a fluid line inlet and an outlet, and arranges a cylindrical liner that serves as a water passage in its inner space inside the valve body case, and at the same time, forms an inner peripheral surface of the main body case and an outer peripheral surface of the liner. In the water faucet, which has a cylinder valve in a slidable contact with a sealing material interposed between the cylinder valve and the cylinder valve slides up and down by a handle operation to open and close the outlet, the cylinder valve is used as a liner outer peripheral surface. The primary inner surface that is in sliding contact and the secondary outer surface that is in sliding contact with the inner peripheral surface of the valve body case are configured on the same line in the vertical direction, so the primary sealing surface and the secondary sealing surface are the same in the vertical direction. As a result, they are located on the line, and as a result, the respective pressure-receiving areas of the cylinder valve that receive the water pressure from above and the water pressure from below that are applied to the cylinder valve during water circulation are substantially the same, and the cylinder valve is evenly applied with water pressure.

Therefore, since the cylinder valve reliably maintains the initially set position, there is no inconvenience of changing the amount of water discharged against the user's will due to the influence of water pressure, unlike the conventional case. It is easy to use and saves water.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing a partially cutaway view of the faucet of the present invention,
FIG. 2 is an enlarged cross-sectional view of a main part, and FIG. 3 is an exploded perspective view. In the figure, (A): Valve body (A '): Valve body case (1): Liner (1a): Outflow port (1b): Inlet port (2): Cylinder valve (3a): Secondary seal material (3b): Primary side sealing material (3a '): Secondary side sealing surface (3b'): Primary side sealing surface (12): Lever handle (x '): Secondary side inner surface (y'): Primary side outer surface () () (): Pressure receiving part

Claims (1)

[Scope of utility model registration request] 1. A cylindrical liner having a fluid inlet and an outlet and having an internal space as a water passage is arranged in a valve body case, and each is provided between the body case inner peripheral surface and the liner outer peripheral surface. In a faucet that has a cylinder valve in sliding contact with a sealing material interposed in a circumferential shape and the cylinder valve slides up and down by a handle operation to open and close the outlet, the cylinder valve slides on the outer peripheral surface of the liner. The inner surface of the primary side that touches,
A water faucet characterized in that an inner peripheral surface of a valve body case and an outer surface of a secondary side that is in sliding contact are configured in the same direction in the vertical direction.