JP4856501B2 - Gas cock - Google Patents

Description

  The present invention provides a cock main body provided with a valve body housing portion on the inside thereof, and a gas inflow channel and a gas outflow channel communicating with the valve body housing portion are provided substantially concentrically. The gas inflow channel and the gas outflow are rotated by rotating the valve body accommodated around a rotation axis in a direction substantially orthogonal to the channel axis of the gas inflow channel or the gas outflow channel. The present invention relates to a gas cock configured such that a communication state with a flow path is adjustable.

The gas cock is provided so that the gas inflow channel side is connected and fixed to a fixed pipe for gas supply so that a gas appliance or the like can be appropriately connected to the gas outflow channel side. It is desirable to connect and fix to the fixed pipe in a posture that allows easy adjustment of the communication state.
In the conventional gas cock, a handle that can be rotated integrally around the coaxial core with the valve body is provided outside the cock body, and by rotating the handle, the valve body is rotated integrally so that the gas inflow The communication state between the channel and the gas outflow channel is configured to be adjustable to, for example, a communication state in which the gas inflow channel and the gas outflow channel communicate with each other, or a blocked state in which the communication is blocked (for example, , See Patent Document 1).

JP 2000-310344 A

For this reason, when the gas cock is connected and fixed to the fixed pipe in a posture in which the communication state between the gas inflow path and the gas outflow path can be easily adjusted, the position of the handle is set at a position that is easy to rotate around the fixed pipe. Thus, it is necessary to fix the connection, and there is a disadvantage that the connection work becomes complicated.
In addition, when connecting and fixing to a fixed pipe via a threaded joint, the position of the handle easily moves around the fixed pipe during the connection work, so there is also a drawback that requires skill in the connection work.
The present invention has been made in view of the above circumstances, and in a posture in which the communication state between the gas inflow channel and the gas outflow channel can be easily adjusted, when connecting and fixing the gas cock to the fixed piping, The purpose is to be able to fix the connection.

The first characteristic configuration of the present invention is that the cock body provided with the valve body housing portion on the inside is provided with a gas inflow channel and a gas outflow channel communicating with the valve body housing portion in a substantially concentric manner,
The gas inflow is caused by the rotation of the valve body accommodated in the valve body accommodating portion around the rotation axis in the direction substantially perpendicular to the flow axis of the gas inflow channel or the gas outflow channel. A gas cock configured to freely adjust the communication state between the flow path and the gas outflow path,
An annular operation member supported on the outer peripheral side of the cock main body so as to be rotatable around the flow path axis and a substantially coaxial core;
A rotating member that is rotatable integrally with the valve body around a coaxial core;
Providing a linkage mechanism mechanically linked so that the turning member rotates in accordance with the turning operation of the operation member ;
The annular operation member includes a flange portion provided annularly on the outer peripheral side of the gas inflow cylinder portion forming the gas inflow passage of the cock body, and an outer periphery of the gas inflow cylinder portion on the upstream side of the flange portion. It is supported in a retaining state between the annular stopper screwed to the side,
The linkage mechanism includes a rotation member side gear provided concentrically with the rotation axis of the rotation member, and an annular gear integrally provided with the annular operation member so as to mesh with the gear. The annular gear is provided on the inner peripheral portion inside the outer peripheral portion of the annular operation member .

[Action and effect]
When connecting the gas cock to the fixed pipe in a posture that makes it easy to adjust the communication state between the gas inflow channel and the gas outflow channel, it can be rotated around the axis axis of the cock body and about the coaxial axis around the cock body. Regardless of the position of the annular operation member that is supported on the fixed pipe, that is, the mounting position of the gas cock around the fixed pipe, it can be rotated by rotating the circular operation member with the same operability from any position around the fixed pipe. By rotating the member integrally with the valve body, it can be connected and fixed to the fixed pipe so that the communication state between the gas inflow channel and the gas outflow channel can be adjusted. It is possible to connect and fix in a posture in which the communication state between the passage and the gas outflow passage can be easily adjusted.

  A second characteristic configuration of the present invention is that a cylindrical portion is provided substantially concentrically on the operation member, and the rotating member is inserted inside the cylindrical portion.

[Action and effect]
Since the cylindrical portion is provided substantially concentrically on the operation member and the rotating member is inserted inside the cylindrical portion, the rotating member and the linkage mechanism can be surrounded by the cylindrical portion to prevent the damage.

Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 show a gas cock according to the present invention, in which a gas inflow cylinder portion 3 and a gas outflow cylinder portion 4 are formed in a cock main body 2 provided with a valve body accommodation portion 1 on the inside, and the valve body accommodation portion 1 is formed. The gas inflow passage 5 and the gas outflow passage 6 communicated with each other are provided substantially concentrically, and the gas inflow passage 5 and the gas outflow passage 6 of the valve body 7 housed in the valve body housing portion 1 are provided. The gas inflow channel 5 and the gas outflow channel 6 are communicated with each other by the rotation about the rotation axis Y in a direction substantially orthogonal to the series of channel axis X. It is configured to be adjustable between a communication state in which the channel 6 communicates and a blocking state in which the communication is blocked.

  As shown in FIG. 3, the valve body accommodating portion 1 is configured such that the truncated cone shaped valve body 7 is directed to the back side through the valve body mounting hole 8 that opens toward one side of the cock body 2. A cylindrical member 9 that is concentrically provided at the opening side end of the valve body accommodating portion 1 and is provided with a rotating member 10 that rotates integrally around the valve body 7 and the coaxial core Y. It is inserted in.

  The valve body 7 has a valve body communication hole 11 through which the gas inflow channel 5 and the gas outflow channel 6 communicate with each other in a radial direction. A different-diameter shaft portion 12 that is fitted so as to rotate integrally with the member 10 is formed, and the rotation range of the valve body 7 with respect to the cock body 2 is defined by the gas inflow passage 5 and the gas outflow passage 6. A rotation restricting portion 13 is provided to restrict the angle range to approximately 90 degrees extending from the communicating position to the communicating position shown in FIG.

  The rotating member 10 includes a columnar drive shaft 14 that enters the inside of the cylindrical portion 9, and the drive shaft 14 is formed with a valve body fitting portion 15 into which the different diameter shaft portion 12 of the valve body 7 is fitted. Then, sandwiching the compression coil spring 16 mounted around the different-diameter shaft portion 12, the different-diameter shaft portion 12 is fitted to the valve body fitting portion 15, and the rotating member 10 is coaxial with the valve body 7. It is provided so that it can be rotated integrally around it.

  The rotation restricting portion 13 inserts and supports the shaft-like stopper 17 substantially in parallel with the flow path axis X over the cylindrical wall portions opposed in the radial direction of the cylindrical portion 9, and as shown in FIG. The valve body communication hole 11 includes a parallel side surface portion 18 parallel to the hole axis Z and an orthogonal side surface portion 19 extending in a direction orthogonal to the hole axis Z, and has a substantially sectoral cross section with a central angle of about 90 degrees. Are provided at a middle portion in the thickness direction of the drive shaft 14 with a phase difference of 180 degrees around the rotation axis Y, and span two fan-shaped spaces 21 between the two pillar portions 20. The shaft-shaped stopper 17 is inserted, and the rotation range of the valve body 7 is approximately 90 degrees across the communication position and the shut-off position by the contact between the shaft-shaped stopper 17 and the side surfaces 18 and 19 of each column portion 20. Restricted to angle range.

  FIG. 4B shows the positional relationship between the drive shaft 14 and the shaft-like stopper 17 in a state in which the valve body 7 is located at the shut-off position. 19 faces the side surface of the axial stopper 17 substantially in parallel. From this blocking position, the drive shaft 14 is moved in the direction indicated by the arrow in FIG. The valve body 7 is moved to the communication position by rotating about 90 degrees until it contacts the side surface of the shaft-like stopper 17.

  An annular operation member 22 is supported on the outer peripheral side of the gas inflow cylinder portion 3 so as to be rotatable about a center axis coaxial with the flow path axis X, and the cylindrical portion 23 is substantially concentric with the operation member 22. The rotating member 10 is inserted inside the cylindrical portion 23 together with a linkage mechanism 26 to be described later.

  The annular operation member 22 is in a state of being prevented from coming off between a flange portion 24 formed annularly on the outer peripheral side of the gas inflow cylinder portion 3 and an annular stopper 25 screwed on the outer periphery side of the gas inflow cylinder portion 3. There is provided a linkage mechanism 26 that is supported so as to be freely rotatable and mechanically linked so that the rotation member 10 rotates in accordance with the rotation operation of the annular operation member 22.

  The linkage mechanism 26 is provided with a spur gear 27 that protrudes outside the cylindrical portion 9 on the drive shaft 14 of the rotating member 10 so as to be integrated with the rotating shaft Y and is annularly engaged with the spur gear 27. 1 is constituted by a face gear provided on the inner peripheral side of the annular operation member 22, and the annular operation member 22 is turned upward in FIG. When the valve body 7 is rotated in the direction, the valve body 7 moves to the communication position, and when the valve body 7 is positioned at the communication position, the valve body 7 moves to the blocking position when the valve body 7 is rotated downward in FIG.

[Other Embodiments]
1. The gas cock according to the present invention can be provided with a linkage mechanism composed of various cross-axis gears such as a bevel gear (bevel gear).
2. The gas cock according to the present invention includes a linkage mechanism that mechanically links the operation member and the rotation member with a link member so that the rotation member rotates in accordance with the rotation operation of the operation member. May be.
3. The gas cock according to the present invention has a communication state between the gas inflow channel and the gas outflow channel according to the rotation operation direction and the operation amount of the operation member, and the gas passage flow rate from the gas inflow channel to the gas outflow channel. It may be configured to be adjustable between a large number and a small number.

Side view of gas cock Vertical section of gas cock Exploded perspective view of the main part (A) Longitudinal sectional view of the main part, (B) Rolling line section arrow view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Valve body accommodating part 2 Cock main body 5 Gas inflow path 6 Gas outflow path 7 Valve body 10 Rotating member 22 Operation member 23 Cylindrical part 26 Linking mechanism X Channel axis Y Rotating axis

Claims (2)

The cock body provided with the valve body housing part on the inside is provided with a gas inflow channel and a gas outflow channel communicating with the valve body housing part in a substantially concentric manner,
The gas inflow is caused by the rotation of the valve body accommodated in the valve body accommodating portion around the rotation axis in the direction substantially perpendicular to the flow axis of the gas inflow channel or the gas outflow channel. A gas cock configured to freely adjust the communication state between the flow path and the gas outflow path,
An annular operation member supported on the outer peripheral side of the cock main body so as to be rotatable around the flow path axis and a substantially coaxial core;
A rotating member that is rotatable integrally with the valve body around a coaxial core;
Providing a linkage mechanism mechanically linked so that the turning member rotates in accordance with the turning operation of the operation member ;
The annular operation member includes a flange portion provided annularly on the outer peripheral side of the gas inflow cylinder portion forming the gas inflow passage of the cock body, and an outer periphery of the gas inflow cylinder portion on the upstream side of the flange portion. It is supported in a retaining state between the annular stopper screwed to the side,
The linkage mechanism includes a rotation member side gear provided concentrically with the rotation axis of the rotation member, and an annular gear integrally provided with the annular operation member so as to mesh with the gear. A gas cock configured, wherein the annular gear is provided on an inner peripheral portion inside an outer peripheral portion of the annular operation member .   The gas cock according to claim 1, wherein a cylindrical portion is provided substantially concentrically on the operation member, and the rotating member is inserted inside the cylindrical portion.

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