JPH0740785Y2 - Valve with one-touch handle - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention opens and closes a valve, particularly a ball valve or butterfly valve used for piping for water supply, hot water supply, gas, etc., by rotating the handle by approximately 90 degrees. It is related to the valve.

(Prior Art) Generally, the handle of the valve for water supply, hot water supply, or gas is
The non-circular outer end portion of the valve stem of the valve is non-rotatably fitted and fixed to the valve stem with bolts, nuts and the like.

Also, when piping these valves, especially water supply,
In hot water supply pipes and gas pipes, the valve is often screwed into a pipe in a narrow space or close to a wall surface. In this case, the handle is an obstacle, so the handle is removed and the valve is assembled.

At this time, bolts and nuts must be removed, and these parts are often lost. Further, bolts and nuts must be tightened when the handle is attached after piping, and it often happens that the operation of a spanner or a driver for this purpose is impossible or difficult.

(Problems to be solved by the invention) When the valve is mounted on the water supply, hot water supply, or gas pipe as described above, the handle is troublesome to remove, parts such as bolts are lost, or the handle is not reused. It was proposed as a result of studies to solve the problem that it is impossible or difficult to tighten the bolts and nuts during assembly.

(Means for Solving the Problems) The present invention intends to solve the above problems by the following means.

That is, the valve is a valve that opens or closes by rotating the handle by approximately 90 degrees, and this handle has a non-circular hole into which the non-circular outer end of the valve rod for the valve is non-rotatably fitted and the valve rod. Has a circular hole concentrically rotatably fitted into the outer surface of the cylindrical projection of the valve box through which the valve penetrates, and the lower end surface of the circular hole is the cylindrical projection of the valve box. It is slidably contacted with a smooth circular surface provided on the base of the valve part, and the outer surface of the cylindrical protrusion of this valve box has a circular cross section and a center diameter approximately equal to the outer diameter of the cylindrical protrusion, and an annular part. Provide an outer circumferential groove with a substantially square cross section for mounting a stop ring having a cut portion, and make the width and depth of this outer circumferential groove slightly larger than the diameter of the circular cross section of the stop ring to form an outer circumferential groove. When the stop ring is attached and the handle is attached to the valve inside the circular hole of the above handle An inner circumferential groove with a substantially rectangular cross section is provided at a position facing the outer circumferential groove of the valve box, and the width of this inner circumferential groove is made slightly larger than the diameter of the circular cross section of the stop ring to reduce the depth of the inner circumferential groove. And the radius of the circular cross section of the stop ring is made approximately equal, and the lower end edge of the circular hole of the handle described above is chamfered to form an annular chamfer so that the handle can be attached to and detached from the valve box with a touch. I chose

Further, a protrusion extending from the connecting step portion between the non-circular hole and the circular hole of the handle into the circular hole is provided, and the protrusion is fitted into the concave cutout portion provided above the cylindrical protrusion of the valve box. This concave cutout is sized to limit the rotation of the protrusion so that the handle can be rotated within a range of approximately 90 degrees to open and close the valve.

(Operation) Since the valve with a one-touch handle of the present invention is configured as described above, when the circular hole of the handle is fitted into the cylindrical protrusion of the valve box, first, the annular chamfer is locked by the stop ring, The entrance of the circular hole is installed in the outer circumferential groove of the cylindrical projection, the cross-section is circular, the center diameter is almost equal to the outer diameter of the cylindrical projection, and the stop is annular and has a cut portion in a part of the ring. Be sure to compress the ring radially inward.

In addition, by fitting the non-circular hole of the handle to the non-circular outer end of the valve rod and pushing the handle in so that the inner circumferential groove of the handle faces the outer circumferential groove of the cylindrical protrusion of the valve box, The stop ring that has been opened expands into the inner circumferential groove of the handle by elastic force and fixes the vertical position of the handle. When the handle is rotated in this state, the non-circular hole of the handle is non-rotatably fitted into the non-circular outer end portion of the valve rod, so that the valve rod also rotates to open or close the valve.

Furthermore, there is a protrusion that extends into the circular hole from the connecting step between the non-circular hole and the circular hole of the handle, and this protrusion is inserted into the concave notch provided above the cylindrical protrusion of the valve box. Then, since the rotation of the handle is limited within the range of about 90 degrees at which the valve opens and closes, the valve can be fully opened or fully closed by rotating the handle 90 degrees left or right.

When the handle is strongly pulled upward from this state, the lower edge of the inner circumferential groove of the handle contracts the stop ring inward in the radial direction, so that the handle can be pulled upward and removed.

Thus, the valve with a one-touch handle of the present invention can be easily attached and detached.

(Embodiment) FIG. 1 is a vertical sectional view showing a ball valve which is one embodiment of the valve with a one-touch handle of the present invention, and FIGS. 2, 3, and 4 are respectively FIG. 3 is a cross-sectional view showing an AA cross section, a BB cross section, and a CC cross section of FIG.

1 to 4, 1 is a valve, 2 is a valve box, 3
Is a valve rod, 4 is a handle, and 5 is a valve body.
Is rotated about 90 degrees to the left or right to rotate the valve body 5 to the open position or the closed position through the valve rod 3 to fully or fully close the valve 1.

The handle 4 is rotatable on the non-circular hole 4a into which the non-circular outer end 3a of the valve rod 3 is fitted so as not to rotate, and on the outer surface of the cylindrical protrusion 2a of the valve box 2 through which the valve rod 3 penetrates. Concentric with a circular hole 4b that is slidably fitted in.

Further, the lower end surface 4f of the circular hole 4b is brought into sliding contact with the smooth circular surface portion 2d provided at the base of the cylindrical protruding portion 2a of the valve box 2, so that the handle can be stably attached and detached with one touch, and stable rotation is possible. it can.

2b is an outer circumferential groove having a substantially square cross section provided on the outer surface of the cylindrical protrusion 2a, and 4c is an inner circumferential groove having a substantially rectangular cross section provided in the circular hole 4b. 2b and inner circumferential groove 4c face each other in the assembled valve 1.

Reference numeral 6 is a stop ring having a circular cross section, a center diameter substantially equal to the outer diameter of the cylindrical protruding portion 2a, and an annular shape having a cut portion 6a in a part of the annular shape.

The width and depth of the outer circumferential groove 2b is slightly larger than the diameter of the cross section of the stop ring 6, the width of the inner circumferential groove 4c is slightly larger than the diameter of the circular cross section of the stop ring 6, and the depth is the circular shape of the stop ring 6. The stop ring 6 is installed in an annular space formed by the outer circumferential groove 2b and the inner circumferential groove 4c facing each other and having a radius substantially equal to that of the cross section. FIG. 5 is a partially enlarged cross-sectional view of FIG. 1 showing this state. In FIG. 5, d indicates the diameter of the circular cross section of the stop ring 6, and d indicates that it is slightly larger than d.

Further, 4d is a protrusion extending from the connection step 4e of the non-circular hole 4a and the circular hole 4b of the handle 4 into the circular hole 4b, and 2c is a concave cutout provided above the cylindrical protrusion 2a. The protrusion 4d is fitted in the concave cutout 2c, and the concave cutout 2c is provided on the handle 4 and accordingly the projection 4d is formed on the valve 1.
It is sized to limit rotation by 90 degrees to open and close. In FIG. 4, it is shown that the protrusion 4d can rotate rightward by 90 degrees in the concave cutout 2c.

Further, the lower edge of the circular hole 4b of the handle 4 is chamfered to form an annular chamfered portion 4g.

Further, 7 is a lid, 8 is a ball seat, and 9 is an O-ring for stem seal.

Next, the operation of the above embodiment will be described.

When the handle 4 is removed, if the handle 4 is strongly pulled up, the inner circumferential groove 4c of the handle 4 and the outer circumferential groove 2b of the circular protrusion 2a of the body 2 face each other to form an annular space. Since the stop ring 6 that is mounted and holds the handle 4 has a circular cross section and a cut portion 6a in a part of the ring, the stop ring 6 has a lower edge of the inner circumferential groove 4c of the handle 4. The stop ring 6 can be compressed inward and the handle 4 can be pulled out and removed.

When the handle 4 is attached to the cylindrical protruding portion 2a of the valve box 2 and the non-circular outer end 3a of the valve rod 3, contrary to the case of removing the handle described above, first, the circular hole 4b of the handle 4 is attached. Is fitted into the cylindrical protrusion 2a. When the lower end of the circular hole 4b of the handle 4 hits the stop ring 6, the stop ring 6 is contracted inward by the edge of the lower end of the circular hole 4b, so that the handle 4 can be pushed further in. As shown in FIG. 1, when the edge of the lower end of the circular hole 4b is expanded or chamfered to form the annular chamfered portion 4g, when the handle is attached or detached,
It is easy to retract the stop ring 6 inward.

As described above, the handle 4 is connected to the cylindrical protrusion of the valve box 2.
The non-circular hole 4a of the handle 4 is inserted into the valve rod 3 while being fitted into the 2a.
In order to fit the non-circular outer end 3a of the handle, the handle 4 is rotated to a suitable position.

In this way, when the handle 4 is fitted into the cylindrical protrusion 2a, the protrusion 4d of the handle 4 fits into the concave cutout 2c of the cylindrical protrusion 2a.
It may be rotated 180 degrees.

In this way, the handle 4 can be easily attached and detached.

(Effect of the Invention) From the above, the valve with a one-touch handle of the present invention has the following useful effects.

(1) When the valve is installed in a small space or close to the wall surface such as water supply, hot water supply or gas piping, the handle can be attached and detached very easily when the valve is attached.

(2) Since bolts and nuts for fixing the handle are not used, these parts will not be lost.

(3) Since bolts and nuts for fixing the handle are not used, a space for operating a spanner or a screwdriver for tightening these parts is not required.

(4) It is easy to attach the handle after connecting the valve.

(5) When attaching / detaching the handle, especially when attaching it, handle 4
Since the annular chamfered portion serves as a guide and the stop ring can be reliably contracted inward, the stop ring can be easily and surely attached.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view showing a ball valve with a one-touch handle of the present invention, FIG. 2, FIG. 3, FIG. The figure is
FIG. 5 is a transverse sectional view showing an AA cross section, a BB cross section, and a CC cross section of FIG. 1, respectively, and FIG. 5 is a partially enlarged vertical cross sectional view of FIG. 1 showing a mounted state of a stop ring. is there. 1 ... Valve, 2 ... Valve box 2a ... Cylindrical protrusion, 2b ... Outer circumferential groove 2c ... Circular notch, 2d ... Sliding circular surface 3 ... Valve rod, 3a ... Non-circular Outer end 4 …… Handle, 4a …… Non-circular hole 4b …… Circular hole, 4c …… Inner circumferential groove 4d …… Projection, 4e …… Connecting step 4f …… Lower end surface, 4g …… Round chamfer Part 6: Stop ring, 6a: Cutting part

Claims (2)

[Scope of utility model registration request] 1. A valve for opening or closing a handle by rotating the handle by approximately 90 degrees, the handle including a non-circular hole into which a non-circular outer end portion of a valve rod for the valve is non-rotatably fitted. Concentric with a circular hole that is rotatably slidably fitted to the outer surface of the cylindrical protruding portion of the valve box for the valve through which this valve rod passes,
The lower end surface of the circular hole is slidably contacted with a smooth circular surface provided on the base of the cylindrical protrusion of the valve box, and the outer surface of the cylindrical protrusion of the valve box has a circular cross section and is approximately the outer diameter of the cylindrical protrusion. An outer circumferential groove having a substantially square cross section for mounting a stop ring having an annular shape and a cut portion in a part of an annular shape having an equal center diameter,
When the width and depth of the outer circumferential groove are made slightly larger than the diameter of the circular cross section of the stop ring and the stop ring is attached to the outer circumferential groove, and the handle is attached to the valve at the inner surface of the circular hole of the handle, An inner circumferential groove with a substantially rectangular cross section is provided at a position facing the outer circumferential groove of the valve box, and the width of this inner circumferential groove is made slightly larger than the diameter of the circular cross section of the stop ring to reduce the depth of the inner circumferential groove. And the radius of the circular cross section of the stop ring is approximately equal, and the lower end edge of the circular hole of the handle is chamfered to form an annular chamfer,
A valve with a one-touch handle characterized in that the handle can be attached to and detached from the valve box with one touch. 2. A protrusion extending from the connection step between the non-circular hole and the circular hole of the handle into the circular hole is provided, and the protrusion is a concave notch provided above the cylindrical protrusion of the valve box. The recessed notch is a size that limits the rotation of the protrusion so that the handle can rotate in the range of about 90 degrees to open and close the valve. The valve with a one-touch handle according to item 1.