JP2012207786A - Gas valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas valve including a magnetic force action unit for operating magnetic force generating members for resetting an overflow prevention valve so that the magnetic force generating members are not contacted with each other when resetting the overflow prevention valve.SOLUTION: A reset unit includes non-contact magnetic force action units R1, R2 that allow magnetic force generated between the magnetic force generating members G1, R5 to act on in response to the movement of a slide valve G between a closed position and an opened position, and operates the magnetic force generating members in the non-contact state for the reset operation.

Description

  The present invention provides a cylindrical gas stopper body having a gas flow passage formed therein, a slide valve movable in the axial direction of the gas stopper body between a closed position and an open position, An overflow prevention valve disposed upstream of the slide valve in the gas flow direction; and disposed between the slide valve and the overflow prevention valve in the gas flow direction; The present invention relates to a gas stopper provided with reset means for performing a reset operation for resetting the overflow prevention valve by movement of the slide valve between positions.

A gas outlet as a known gas plug is connected to a gas pipe that circulates gas from the upstream side, and can be connected to a gas appliance or the like on the downstream side so that a gas connector for guiding gas can be attached. ing. When a gas connector is attached to the gas stopper, it is pressed by the pressing portion of the gas connector to open the gas flow passage, and when the gas connector is released, the pressing portion There is a slide valve that releases the pressure and closes the gas flow path, so that it is possible to prevent gas from leaking from the gas stopper even if the gas connector is removed from the gas stopper. It is configured.
Furthermore, in the gas stopper, for example, when the gas pipe connecting the gas connector and the gas appliance is broken, a gas flow rate higher than a certain value in the gas flow passage is avoided in order to avoid a situation where the gas leaks from the damaged portion. An excessive outflow prevention valve is provided for blocking the gas flow passage when the flow pressure is generated. Further, reset means is provided for performing a reset operation for releasing the state in which the overflow prevention valve is blocking the gas flow passage while the overflow prevention valve is blocking the gas flow passage.
The reset means includes two oscillating members that are oscillating around an axial center along a gas flow path radial direction, and that includes two oscillating members along the axial direction of the gas flow path. Along with the movement from the closed position for closing the gas flow passage to the open position for opening the gas flow passage, the slide valve is pressed, and the upstream swing member is swung by the swing of the downstream swing member. By being moved, the swing member on the other side is configured to return the overflow prevention valve from the operating position to the initial position (see Patent Document 1).

  On the other hand, as a gas stopper as described above, regardless of the attachment of the gas connector to the gas stopper main body, the rotary valve, which is an opening / closing valve, is rotated to open and close in accordance with the rotation operation of the operation portion such as the operation knob. A so-called rotary gas stopper (see, for example, Patent Document 2) that performs gas supply and stop switching is known. In addition, as an open / close valve that opens and closes between a gas inflow path and a gas outflow path that is built in a gas stove or the like and switches between supply and stop of gas, a slide that is an open / close valve in accordance with a pressing operation on an operation unit such as an operation button A so-called push-push type opening / closing valve (see, for example, Patent Document 3) that opens and closes by sliding the valve is known, and the gas stopper is also configured as a push-push type in the same manner as this opening / closing valve. It is hoped that.

Noto 2513850 Japanese Examined Patent Publication No. 02-021660 Japanese Patent Laid-Open No. 02-154918

  In the technique disclosed in Patent Document 1, contact between the pressing portion of the gas connector and the first swing member, contact between the first swing member and the second swing member, The reset operation and the release of the reset operation are performed by performing three contact between the swing member and the operated portion. Each time the reset operation and the release of the reset operation are performed, it is repeated that the members are contacted after being separated from each other, so that wear of the members is accelerated. Therefore, it is preferable to reduce contact between members as much as possible. However, in the technique disclosed in Patent Document 1, as many as three contacts between members are performed, deterioration of the members is accelerated, and depending on how the members contact each other. This causes a problem that the member is damaged.

  The present invention has been made in view of the above problems, and its purpose is to prevent contact between members provided in the gas plug body when resetting the overflow prevention valve, thereby damaging the members. It is in providing a gas stopper that can be prevented.

To achieve the above object, the gas stopper of the present invention comprises:
A cylindrical gas stopper body having a gas flow passage formed therein, a slide valve movable in the axial direction of the gas stopper body between a closed position and an open position, and a gas flow direction of the gas flow passage An overflow prevention valve disposed upstream of the slide valve, and disposed between the slide valve and the overflow prevention valve in the gas flow direction, between the closed position and the open position. And a reset means for performing a reset operation for resetting the overflow prevention valve by pressing the operated portion to the upstream side of the gas flow passage by the movement of the slide valve, The feature configuration is
The reset means causes the magnetic force generated between the magnetic force generation members to act as the slide valve moves between the closed position and the open position, and operates the magnetic force generation members in a non-contact manner to perform the reset. It is in the point provided with the non-contact-type magnetic force action means which performs operation.

Further features of the gas stopper of the present invention are as follows:
The magnetic force generating member is composed of the slide valve and a swinging member that is swingable about an axis along the flow path radial direction of the gas flow passage,
An urging means for urging the oscillating member on one side of the oscillating direction including an operating position for performing the reset operation on the operated portion in an oscillating range;
The magnetic force application means includes a first magnetic body provided on the slide valve and a second magnetic body provided on the swing member, and is generated between the first magnetic body and the second magnetic body. A repulsive force as a magnetic force is applied to the swinging member to swing the swinging member against the biasing force of the biasing means.

According to the above characteristic configuration, the swinging member that can swing around the shaft center is provided as the magnetic force generating member, and the swinging range includes the operation position for performing the reset operation on the operated portion in one swinging direction. An urging means for urging the oscillating member is provided on the oscillating member, and a magnetic force is applied to the oscillating member to oscillate the oscillating member to the other side in the oscillating direction against the urging force of the urging means. Therefore, for example, while performing the reset operation by swinging the swinging member to the operation position by the biasing force of the biasing means, the resetting operation is released by swinging the swinging member to the position away from the operation position by the magnetic force. It can be performed. Therefore, the reset operation and the reset operation can be appropriately released by the swinging of the swinging member by the biasing force of the biasing means and the swinging of the swinging member by the magnetic force.
Further, for example, if the slide valve is caused to come into contact with the swing member to swing, the moving force of the slide valve acts on the swing member as it is, which causes deterioration of the swing member and damage to the swing member. It will be easy to invite. Therefore, in this configuration, the swinging member can be swung in a non-contact manner by applying a magnetic force between the slide valve and the swinging member, which is effective for deterioration of the swinging member and damage to the swinging member. Can be prevented.

Further features of the gas stopper of the present invention are as follows:
The magnetic force generating member is composed of the slide valve and the operated portion,
The reset means, when the slide valve moves between the closed position and the open position, so that the non-contact operation portion provided in the slide valve is moved closer to and away from the operated portion. A first motion conversion mechanism for converting the movement of the slide valve between the closed position and the open position into the movement of the non-contact operating portion;
The magnetic force application means includes a first magnetic body provided in the non-contact operating portion and a second magnetic body provided in the operated portion, and between the first magnetic body and the second magnetic body. The repulsive force as the magnetic force generated in the operation is applied to the operated part, and the reset operation is performed on the operated part in the non-contact state by the non-contact operating part.

According to the above characteristic configuration, the first motion conversion mechanism is configured to move the slide valve between the closed position and the open position in a state where the overflow prevention valve prevents the gas flow in the gas flow passage. The movement of the slide valve is converted into the movement of the non-contact operation unit so that the non-contact operation unit is moved closer to and away from the operated unit. Here, since the first magnetic body is provided in the non-contact operating portion and the second magnetic body is provided in the operated portion, by moving the non-contact operating portion closer to and away from the operated portion, A repulsive force as a magnetic force generated between the first magnetic body and the second magnetic body can be applied to the operated portion. Thereby, it is possible to appropriately perform the reset operation on the operated part in a non-contact state at the non-contact operation part.
As a result, in the reset operation, the action state of the repulsive force as the magnetic force to the operated part can be switched between the non-contact operating part and the operated part in a non-contact state, and the deterioration and damage of the operated part are effective. Can be prevented.

Further features of the gas stopper of the present invention are as follows:
A first operation position for bringing the non-contact operation part closer to the operated part and performing the reset operation on the operated part in a non-contact state at the non-contact operating part; and The first operation release position for releasing the reset operation away from the operated portion is set at a position different in the circumferential direction around the axis along the gas flow direction of the gas flow path,
The first motion conversion mechanism is a slide movement conversion that moves the non-contact operation unit along the gas flow direction of the gas flow passage when the slide valve moves between the closed position and the open position. The movement of the slide valve is converted into the movement of the non-contact operation part in a form that switches between the state and the rotational motion conversion state in which the non-contact operation part is rotated around the axis along the gas flow direction of the gas flow passage. There is in point.

  According to the above characteristic configuration, for example, in the axial direction of the gas flow passage, the first motion conversion mechanism is placed in the slide movement conversion state, and the distance between the non-contact operation unit and the operated unit is made closer, and then the first motion conversion mechanism In the rotational motion conversion state, the non-contact operation part can be rotated around the axis along the gas flow direction, and after passing through the first operation position, the non-contact operation part can be rotated to the first operation release position. . Accordingly, the reset operation can be performed when the non-contact operation unit passes through the first operation position, but the non-contact operation unit is finally positioned at the first operation release position to cancel the reset operation. be able to. As a result, the reset operation and the release of the reset operation can be appropriately and reliably performed.

Further features of the gas stopper of the present invention are as follows:
A second operation position for bringing the non-contact operation part closer to the operated part and performing the reset operation on the operated part in a non-contact state at the non-contact operating part; and A second operation release position that releases the reset operation away from the operated portion is set to a position that is different in the circumferential direction around the axis along the gas flow direction of the gas flow path,
When the slide valve moves between the closed position and the open position, the first motion conversion mechanism is arranged around the axis along the gas flow direction of the gas flow path from the start of movement to the end of movement. The movement of the slide valve is converted into the movement of the non-contact operation part in a form in which the non-contact operation part is rotated.

  According to the above characteristic configuration, the second operation position and the second operation release position are different positions in the circumferential direction around the axis along the gas flow direction of the gas flow passage, and the first motion conversion mechanism is a slide valve. From the start of movement to the end of movement, the second operation is released after rotating the non-contact operation part along the circumferential direction around the axis along the gas flow direction of the gas flow passage and passing the second operation position. The non-contact operation unit can be moved to the position. As a result, it is possible to appropriately and reliably perform the reset operation and the reset operation by appropriately moving the non-contact operation unit. In addition, the first motion conversion mechanism only needs to rotate the non-contact operation part along the circumferential direction around the axis of the gas flow passage, and the configuration of the first motion conversion mechanism can be simplified.

Further features of the gas stopper of the present invention are as follows:
A support member for supporting the slide valve is provided in the gas flow passage so as to be slidable in a gas flow direction of the gas flow passage;
The first motion conversion mechanism includes an engagement guide groove formed on an outer periphery of the support member, and an engaged portion formed on an inner wall portion of the gas flow passage and engaged with the engagement guide groove. It is in the point to have.

  According to the above characteristic configuration, when the engaged portion is engaged with the engagement guide groove, the support member is moved as it is along the axial direction of the gas plug body or the support member is rotated, The non-contact operating part can be moved along the axial direction, or the non-contact operating part can be rotated along the circumferential direction around the axis of the gas flow path. Thus, with the simple configuration of engaging the engaged portion with the engagement guide groove, the movement of the slide valve by the first motion conversion mechanism can be appropriately converted to the movement of the non-contact operation portion. .

Further features of the gas stopper of the present invention are as follows:
The magnetic force generation member is composed of the slide valve and an upstream member that is provided on the upstream side and performs the reset operation.
The magnetic force acting means is composed of a first magnetic body provided on the slide valve and a second magnetic body provided on the upstream member, and between the first magnetic body and the second magnetic body. A state in which an attractive force as a generated magnetic force is applied to the upstream member to switch from a state in which the reset operation is performed to a state in which the reset operation is canceled, or a repulsive force is applied to the upstream member to cancel the reset operation. To the state where the reset operation is performed.

According to the above characteristic configuration, the first magnetic body provided in the slide valve and the second magnetic provided in the upstream member as the slide valve moves upstream (movement from the closed position to the open position). The distance from the body is reduced, and an attractive force as a magnetic force generated between the first magnetic body and the second magnetic body is applied to the upstream member to switch from the reset operation state to the reset operation release state. Alternatively, a repulsive force as a magnetic force generated between the first magnetic body and the second magnetic body can be applied to the upstream member to switch from a state where the reset operation is canceled to a state where the reset operation is performed.
Conversely, the distance between the first magnetic body provided on the slide valve and the second magnetic body provided on the upstream member as the slide valve moves downstream (movement from the open position to the closed position). And releasing the attractive force as the magnetic force generated between the first magnetic body and the second magnetic body, and switching from the state of releasing the reset operation to the state of performing the reset operation, or the first magnetic body and the second magnetic body. It is possible to switch from a state in which the reset operation is canceled to a state in which the reset operation is canceled by releasing the repulsive force as a magnetic force generated between the first magnetic body and the second magnetic body by increasing the distance from the magnetic body. .

Further features of the gas stopper of the present invention are as follows:
The reset means includes a rotary member that is rotatable about an axis along the gas flow direction of the gas flow passage, and rotational movement of the rotary member between the closed position and the open position. A second motion conversion mechanism that can be converted into
The magnetic force application means includes a first magnetic body provided on the rotating member and a second magnetic body provided on the operated portion, and is generated between the first magnetic body and the second magnetic body. A repulsive force as a magnetic force is applied to the operated part, and the reset operation is performed on the operated part in a non-contact state by the rotating member.

According to the above characteristic configuration, when the slide valve moves between the closed position and the open position, the movement of the slide valve is converted into the rotary motion of the rotary member by the second motion conversion mechanism, and the rotary member rotates. The first magnetic body provided on the rotating member by movement can be brought close to the second magnetic body provided on the operated portion. Thus, a repulsive force as a magnetic force generated between the first magnetic body and the second magnetic body is caused to act on the operated portion, and a reset operation is performed on the operated portion in a non-contact state by the rotating member. It can be carried out.
In addition, according to the above characteristic configuration, the second motion conversion mechanism converts the movement of the slide valve from the closed position to the open position into the rotational movement of the rotating member, and also moves the slide valve from the open position to the closed position. Therefore, the reset operation can be performed both when the slide valve moves from the closed position to the open position and when the slide valve moves from the open position to the closed position. It is possible to appropriately perform the reset operation / reset release operation of the overflow prevention valve.

Further features of the gas stopper of the present invention are as follows:
The gas flow passage is provided with the overflow prevention valve, the reset means, and the slide valve in order from the upstream side, and is provided in a straight line along the axial direction of the gas plug body.

  According to the above characteristic configuration, the gas flow passage is provided in a straight line along the axial direction of the gas plug main body while including all of the overflow prevention valve, the reset means, and the slide valve. However, the overflow prevention valve, the reset means, and the slide valve can be arranged in a straight line in a state adjacent to the axial direction of the gas plug body. Therefore, the positional relationship among the overflow prevention valve, the reset means, and the slide valve can be simplified, and the configuration of the reset means for resetting the overflow prevention valve using the movement of the slide valve can be further simplified. In addition to this, the reset operation by the reset means and the release of the reset operation can be appropriately performed. In addition, by making the gas plug body straight, it is possible to install the gas plug coaxially with the gas piping connected to the gas plug body, and to reduce the installation space. it can. Furthermore, when the gas plug main body is linear, the area of the opening formed in the wall can be reduced when the gas plug is installed in a form embedded in the wall or in a form penetrating the wall.

Further features of the gas stopper of the present invention are as follows:
The slide valve is located between the closed position and the open position as the gas connector is attached to and detached from the gas stopper body.

  That is, the gas plug according to the present invention is configured as a so-called gas outlet so that the slide valve moves between the closed position and the open position when the gas connector is attached to and detached from the gas plug body. it can.

Further features of the gas stopper of the present invention are as follows:
The slide valve is in a point that moves between the closed position and the open position in accordance with a pressing operation on the operation unit.

  As described above, the gas stopper of the present invention can be configured as a so-called push-push type gas cock so that the slide valve moves between the closed position and the open position in accordance with the pressing operation on the operation portion. .

Sectional drawing which shows the state from which the gas connection tool was removed from the gas stopper main body in 1st Embodiment. Sectional drawing which shows the state with which the gas connector was attached to the gas stopper main body in 1st Embodiment. Partial sectional drawing which shows the operating state of the gas stopper which concerns on 1st Embodiment Partial sectional drawing which shows the operating state of the gas stopper which concerns on 2nd Embodiment The expanded sectional view of the slide valve concerning a 2nd embodiment The perspective view of the reset means which concerns on 2nd Embodiment. Partial sectional drawing which shows the operating state of the gas stopper which concerns on 3rd Embodiment Partial sectional view showing the operating state of the gas stopper according to the fourth embodiment Partial sectional drawing which shows the operating state of the gas stopper which concerns on 5th Embodiment The partial cross section figure which shows the case where the central axis of the gas flow path has shifted | deviated in the gas stopper which concerns on 1st Embodiment The partial cross section figure which shows the case where the central axis of the gas flow path has shifted | deviated in the gas stopper which concerns on 2nd Embodiment Partial sectional drawing which shows the case where the central axis of the gas flow path has shifted | deviated in the gas stopper which concerns on 3rd Embodiment Partial sectional drawing which shows the case where the central axis of the gas flow path has shifted | deviated in the gas stopper which concerns on 4th Embodiment Partial sectional drawing which shows the case where the central axis of the gas flow path has shifted | deviated in the gas stopper which concerns on 5th Embodiment Side sectional view which shows the state at the time of opening of the gas stopper of 6th Embodiment The disassembled perspective view which shows the slide valve and operation mechanism part of the gas stopper of 6th Embodiment Side sectional view which shows the state at the time of the action | operation of the excessive outflow prevention valve of the gas stopper of 6th Embodiment Side sectional view which shows the state in the middle of closing operation of the gas stopper of 6th Embodiment Side sectional view which shows the state at the time of closing of the gas stopper of 6th Embodiment Explanatory drawing explaining the transition state of the position of the guide pin in the guide groove at the time of the capping operation in 6th Embodiment Explanatory drawing explaining the transition state of the position of the guide pin in the guide groove at the time of the opening operation in 6th Embodiment

The gas stopper according to the present invention is provided with an overflow prevention valve H2 that operates when a flow pressure of a gas flow rate above a certain level is generated in the gas flow passage 1 of the gas stopper body 2 and prevents the gas flow. A feature is that a reset means R is provided for resetting the operation of the overflow prevention valve H2 by magnetic force.
Therefore, in the following, first, the basic configuration of the gas plug main body 2 and the gas connector 100 connected to the gas plug main body 2 will be described as the basic configuration of the gas plug, and then the reset means R that is a characteristic configuration of the present invention will be described. To do.

<First Embodiment>
As shown in FIGS. 1 and 2, the gas stopper according to the first embodiment includes a cylindrical gas stopper body 2 in which a gas flow passage 1 is formed, and a gas connection is made to the gas stopper body 2. The gas flow passage 1 is provided by supplying the gas to the gas appliance connected to the gas connection tool 100 by gas flow in the gas flow passage 1 by attaching the tool 100 and removing the gas connection tool 100 from the gas plug body 2. It is configured as a so-called gas outlet that stops the gas flow in the gas and stops the gas supply to the gas appliance. FIG. 1 shows a state where the gas connector 100 is removed from the gas plug body 2, and FIG. 2 shows a state where the gas connector 100 is attached to the gas stopper body 2.

  The gas plug main body 2 includes a slide valve G that can freely open and close the gas flow passage 1, and an overflow prevention valve H2 that prevents gas flow when the gas flow rate in the gas flow passage 1 exceeds a certain level. And a reset means R for performing a reset operation for resetting the excessive outflow prevention valve H2 when the gas connector 100 is detached from the gas plug body 2. Here, the reset operation is an operation of pressing the operated member H3 in the excessive outflow prevention valve H2 to the upstream side of the gas flow passage 1.

  The gas flow passage 1 has a circular cross section, and is provided in a straight line along the axial direction (X direction in FIGS. 1 and 2) of the gas plug body 2. The gas flow direction of the gas flow passage 1 is the same direction. The gas flow passage 1 includes a plurality of flow passage portions 1a to 1g whose flow passage diameters are changed, and prevents excessive outflow in order from the upstream side in the gas flow direction (the right side in the X direction in FIGS. 1 and 2). An overflow prevention mechanism H provided with a valve H2, a reset means R, and a slide valve G are provided. As a plurality of flow path parts, the first flow path part 1a, the second flow path part 1b, the third flow path part 1c, the fourth flow path part 1d, and the fifth flow path part 1e in order from the upstream side in the gas flow direction. The sixth flow path part 1f and the seventh flow path part 1g are provided. The first flow path part 1a is communicated with a gas inlet (not shown), and the second flow path part 1b is formed with a flow path diameter smaller than that of the first flow path part 1a. H is arranged. The third channel part 1c is formed with a channel diameter smaller than that of the second channel part 1b, and the reset means R is arranged. The fourth channel part 1d is formed with a channel diameter smaller than that of the third channel part 1c, and the fifth channel part 1e is formed with a channel diameter larger than that of the third channel part 1c. The sixth channel part 1f is formed with a channel diameter smaller than that of the fifth channel part 1e, and the seventh channel part 1g is inclined so that the channel diameter is smaller on the downstream side than on the upstream side. It is formed and communicates with a gas outlet 3 formed at the tip of the gas plug body 2.

The slide valve G includes a first valve body G1 capable of closing the sixth flow path portion 1f in the gas flow passage 1, and a second valve body G2 capable of closing the seventh flow path portion 1g in the gas flow passage 1. It has.
The first valve body G1 is provided so as to be movable along the axial direction of the gas plug main body 2 across the sixth flow path part 1f and the fifth flow path part 1e. The outer diameter of the upstream end portion of the first valve body G1 is the same as the flow passage diameter of the sixth flow passage portion 1f, and the valve seat portion on which the first valve body G1 is seated is the sixth flow passage portion 1f. It consists of an inner wall. The first valve body G1 is located at a closed position that closes the sixth flow path part 1f when moved to the sixth flow path part 1f, and an open position that allows gas flow when moved to the fifth flow path part 1e. Located in. The first valve body G1 is urged so as to return to the closed position by the first urging member F1, and when the gas connector 100 is detached from the gas plug body 2, the first valve body G1 is located at the closed position. Thus, the sixth flow path portion 1f is closed.

The second valve body G2 is provided so as to be movable along the axial direction of the gas plug body 2 across the sixth flow path part 1f and the seventh flow path part 1g. The outer diameter of the downstream end portion of the second valve body G2 is the same as the flow passage diameter of the inclined portion of the seventh flow passage portion 1g, and the valve seat on which the second valve body G2 is seated is the seventh flow passage. It is comprised in the inclination site | part of the site | part 1g. The second valve body G2 is located at a closed position that closes the seventh flow path part 1g when moved to the seventh flow path part 1g, and an open position that allows gas flow when moved to the sixth flow path part 1f. Located in. The second valve body G2 is urged so as to return to the closed position by the second urging member F2. When the gas connector 100 is detached from the gas plug body 2, the second valve body G2 is located at the closed position. The seventh flow path portion 1g is closed.
In this way, both the first valve body G1 and the second valve body G2 constituting the slide valve G are movable between the closed position and the open position along the axial direction of the gas plug body 2, and the gas The flow passage 1 is biased so as to return to the closed position.

The gas connector 100 that can be attached to and detached from the gas plug body 2 will be described. Since the gas connector 100 has a known configuration, a detailed description thereof will be omitted and will be briefly described.
In the gas connector 100, the positions of the protruding member 102, the locking ball 103, and the locking ball 103 that are biased forward by the first coil spring 101 (the right side in the X direction in FIGS. 1 and 2) are set in the radial direction. An inner diameter member 104 that is pressed against the front end of the gas stopper main body 2 and is retracted, and a rod-like pressing portion 105 that presses the slide valve G when the gas stopper main body 2 is mounted. It has.

  When the gas connector 100 is attached to the gas plug main body 2, as shown in FIG. 2, the distal end portion of the gas plug main body 2 abuts against the inner diameter member 104, so that the inner diameter member 104 is biased by the second coil spring 106. Retire against. When the inner diameter member 104 is retracted, the locking ball 103 moves inward in the radial direction, the locking ball 103 is fitted into the fitting groove 2 a formed in the gas plug main body 2, and the protruding member 102 is the first coil spring 101. It protrudes to the front side (right side in the X direction in FIG. 2) by the urging force. In this way, the locking ball 103 of the gas connector 100 is fitted into the fitting groove 2 a of the gas plug body 2, so that the gas connector 100 is externally mounted on the gas plug body 2. When the gas connector 100 is attached to the gas plug body 2, the slide valve G is pressed by the pressing portion 105 of the gas connector 100. By pressing against the slide valve G by the pressing portion 105, both the first valve body G1 and the second valve body G2 are located upstream of the gas flow passage 1 along the axial direction of the gas plug body 2 (X direction in FIG. 2). To the open position, the gas flow passage 1 is opened, and gas supply to the gas appliance is performed.

  When the gas connector 100 is removed from the gas plug body 2, the locking member 103 is fitted into the fitting groove 2a by pushing the protruding member 102 against the urging force of the first coil spring 101. Since it is released, the gas connector 100 can be removed from the gas plug body 2. Then, when the gas connector 100 is removed from the gas plug body 2, the pressing by the pressing portion 105 against the slide valve G is released, and both the first valve body G1 and the second valve body G2 are connected to the urging members F1, F2. The urging force moves along the axial direction of the gas plug body 2 to the downstream side of the gas flow passage 1 (the right side in the X direction in FIG. 2), returns from the open position to the closed position, and the gas flow passage 1 is closed. To be spoken.

  The excessive outflow prevention mechanism H is disposed in the second flow path portion 1b of the gas flow path 1, and includes a cylindrical member H1 in which a flow path for circulating gas is formed. Inside the cylindrical member H1, there is an overflow prevention valve H2 that is movable in the axial direction of the gas plug body 2 between an initial position that allows gas flow and an operating position that blocks gas flow, and a reset operation from the reset means R. As a result, the operated member H3 (corresponding to the operated part) that receives the pressing operation to the upstream side of the gas flow passage 1, and the overflow prevention valve H2 and the operated member H3 are movable in the axial direction of the gas plug body 2. And a supporting member H4 for supporting the above.

  The overflow prevention valve H2 is urged by the third urging member F3 so as to return to the initial position upstream of the operating position, and is held at the initial position by contacting the contact member H5. ing. The overflow prevention valve H2 is provided so as to be freely movable from the initial position to the operating position by the flow pressure of the gas flow rate when the gas flow rate exceeds a certain level. H2 is seated on the valve seat H6 and prevents gas flow.

  The support member H <b> 4 is formed in a cylindrical shape whose inside penetrates in the axial direction of the gas plug main body 2. The upstream portion of the support member H4 is externally fitted to the shaft portion H2a of the overflow prevention valve H2, and supports the overflow prevention valve H2 so as to be movable in the axial direction of the gas plug body 2. The downstream portion of the support member H4 is externally fitted to the operated member H3, and supports the operated member H3 so as to be movable in the axial direction of the gas plug body 2.

  The upstream portion H3a of the operated member H3 is formed in a rod shape extending in the axial direction of the gas stopper main body 2, is fitted into the support member H4, and is supported so as to be movable in the axial direction of the gas stopper main body 2. Yes. The downstream portion of the operated member H3 is formed in a substantially conical shape provided with a head portion H3b that protrudes downstream in the central portion of the gas flow passage 1 in the flow path radial direction. On the outer side in the radial direction of the head portion H3b, a leg portion H3c extending outward in the radial direction is provided, and the distal end portion of the leg portion H3c is engaged with an engaging groove H1a formed in the tubular member H1. Yes. Although illustration is omitted, a plurality of leg portions H3c are provided at intervals in the circumferential direction, and gas flows between the leg portions H3c. The operated member H3 is urged by the fourth urging member F4 so that the head portion H3b at the downstream side portion returns from the cylindrical member H1 to the protruding position where it protrudes to the downstream side of the gas flow passage 1. The portion H3c abuts against the end of the engagement groove H1a and is held at the protruding position.

The support member H4 has an excessive outflow in a state in which an interval corresponding to the amount of movement from the initial position to the operating position is separated between the excessive outflow prevention valve H2 positioned at the initial position and the operated member H3 positioned at the protruding position. The prevention valve H2 and the operated member H3 are supported so as to be movable in the axial direction of the gas plug body 2. Thereby, the excessive outflow prevention mechanism H is moved from the initial position of the excessive outflow prevention valve H2 when the reset operation in which the operated member H3 located at the protruding position is pressed upstream of the gas flow passage 1 is released. Movement to the operating position is allowed.
On the other hand, when the overflow prevention valve H2 is moved to the operating position by the flow pressure at a gas flow rate above a certain level, the overflow prevention valve H2 that has moved to the operating position comes into contact with the operated member H3 that is located at the protruding position. ing. When the operated member H3 located at the protruding position is subjected to a reset operation that is pressed to the upstream side of the gas flow passage 1, the operated member H3 and the overflow prevention valve H2 are brought into contact with the operated member H3. The overflow prevention valve H2 integrally moves to the upstream side of the gas flow passage 1, the seating of the overflow prevention valve H2 on the valve seat portion H6 is released, and the gas pressure from the upstream side is released. The overflow prevention valve H2 is returned to the initial position by the urging force of the third urging member F3. In this way, the excessive outflow prevention mechanism H sets the excessive outflow prevention valve H2 to the initial position when the operated member H3 located at the protruding position receives a reset operation that is pressed to the upstream side of the gas flow passage 1. I am returning.

  When the gas connector 100 is detached from the gas stopper main body 2, the reset means R is provided with an overflow prevention valve as the slide valve G moves to the closed position in the axial direction of the gas stopper main body 2. In order to return H2 to the initial position, a reset operation for pressing the head H3b of the operated member H3 to the upstream side of the gas flow passage 1 is performed.

Although the details of the reset means R will be described later, as the slide valve G moves between the closed position and the open position, the slide valve G (an example of a magnetic force generating member) and the flow path radial direction of the gas flow passage 1 The magnetic force generated between the swinging member R5 (an example of a magnetic force generating member) that can swing around the first axis P1 along the axis is applied to the slide valve G and the swinging member R5 in a non-contact state. The moving member R5 is operated to perform a reset operation and is configured in a non-contact manner.
In other words, the reset means R swings in one swing direction including the operation position (see FIG. 3A) for performing the reset operation on the head H3b of the operated member H3. A biasing member R3 (corresponding to a biasing means) for biasing the member R5 is provided, and a first magnetic body R13 (an example of a magnetic force acting means) provided on the slide valve G and a swing member R5 are provided. And a second magnetic body R2 (an example of a magnetic force acting means). Then, a repulsive force as a magnetic force generated between the first magnetic body R13 and the second magnetic body R2 is applied to the swing member R5 to swing the swing member R5 against the biasing force of the biasing member R3. It is configured to move.

The swing member R5 has an operation part R5a on one end side around the first axis P1 along the flow path radial direction of the gas flow passage 1, and a pressing action part R5b that presses the operated member H3 on the other end side. It is configured with. Although details will be described later, the operation portion R5a is a portion to which a magnetic force is applied by the magnetic force applying means.
The rocking fulcrum of the rocking member R5 is the first axis P1, and the first axis P1 is disposed at the radial center of the gas flow passage 1. The pressing action portion R5b on which the magnetic force of the magnetic force acting means acts is arranged at an eccentric position that deviates from the radial center of the gas flow passage 1 toward the end. As shown in FIG. 1, when the swinging member R5 is located at the operating position, the operating part R5a is positioned at the radial end of the gas flow passage 1, and the pressure acting part R5b is passed through the gas flow. It is formed in an L shape that is positioned at the radial center of the path 1.

  Further, the swinging member R5 is swung to one side in the swinging direction (counterclockwise in FIGS. 1, 2, and 3) by the biasing member R3 to move to the operating position (FIGS. 3A and 3). It is urged to return to (d)). As shown in FIG. 3 (d), the pressing portion R5b has an inclined surface, and when the swinging member R5 swings to the operating position, the inclined surface is moved to the head H3b of the operated member H3. A reset operation for pressing the head H3b toward the upstream side of the gas flow passage 1 is performed.

When the first magnetic body R13 and the second magnetic body R2 as the magnetic force acting means are described, the first magnetic body R13 is gas from the end of the second valve body G2 that is the slide valve G on the swing member R5 side. The second magnetic body R2 is provided at the operation portion R5a of the swinging member R5, and is provided at the tip of the rod-like portion G1a extending upstream of the flow passage 1.
The first magnetic body R13 and the second magnetic body R2 are arranged in a state in which they oppose each other in the axial direction of the gas plug main body 2 and exert a repulsive force as a magnetic force. In the present embodiment, the first magnetic body R13 and the second magnetic body R2 are configured as permanent magnets, and are arranged with the same magnetic poles facing each other, thereby exerting a repulsive force. As shown in FIGS. 3B and 3C, the first magnetic body R13 and the second magnetic body R2 are formed by the movement of the slide valve G from the closed position to the open position. R13 moves to the upstream side of the gas flow passage 1 along the axial direction of the gas plug main body 2 to bring the first magnetic body R13 and the second magnetic body R2 closer to each other, and the operation part R5a of the swing member R5 is moved. The swinging member R5 is pressed and swung to a position disengaged from the operation position to the other side of the swinging direction (clockwise in FIGS. 1, 2, and 3) by pressing with the repulsive force of the magnetic force. Yes.
By adopting the above configuration, the magnetic force acting means as the resetting means R is in the state where the slide valve G and the swinging member R5 are not in contact with each other, to the upstream side of the gas flow path 1 to the operated member H3. It works to switch between pressing and releasing.

Hereinafter, the movement of the slide valve G, the excessive outflow prevention mechanism H, and the reset means R will be described with reference to FIG.
FIG. 3A shows a state where the gas connector 100 is removed from the gas plug body 2. FIG. 3B shows a state in which the gas connector 100 is mounted on the gas plug body 2. FIG. 3C shows a state in which the excessive outflow prevention valve H2 has moved from the initial position to the operating position when the gas connector 100 is mounted on the gas plug body 2. FIG. FIG. 3D shows a state in which the reset operation is performed by removing the gas connector 100 from the gas plug body 2.

  As shown in FIG. 3 (a), when the gas connector 100 is removed from the gas plug body 2, the slide valve G is in the closed position, and the gas flow passage 1 is closed by the slide valve G. It is spoken. At this time, since the swinging member R5 is biased so as to return to the operation position by the biasing force of the biasing member R3, the pressing action site R5b of the swinging member R5 is the head H3b of the operated member H3. A reset operation is performed to press the gas toward the upstream side of the gas flow passage 1. This reset operation returns the excessive outflow prevention valve H2 to the initial position. FIG. 3A shows a state in which the excessive outflow prevention valve H2 is returned to the initial position.

  As shown in FIG. 3 (b), when the gas connector 100 is attached to the gas plug body 2, the pressing portion 105 of the gas connector 100 presses the slide valve G to the upstream side of the gas flow passage 1, and the slide valve G moves from the closed position to the open position to open the gas flow passage 1. At this time, with the movement of the slide valve G, the first magnetic body R13 and the second magnetic body R2 approach each other and exert a repulsive force as a magnetic force, and the operation portion R5a of the swing member R5 is caused by the repulsive force. When pressed, the swing member R5 swings to the other side in the swing direction (clockwise in FIG. 3B), and the swing member R5 swings to a position deviating from the operation position. By this swinging of the swinging member R5, the reset operation in which the pressing action portion R5b of the swinging member R5 presses the head H3b of the operated member H3 to the upstream side of the gas flow path 1 is released. When the reset operation is released, the head H3b of the operated member H3 is returned to the protruding position by the urging force of the fourth urging member F4. In this way, when the operated member H3 is returned to the protruding position, the movement of the overflow prevention valve H2 from the initial position to the operating position is allowed between the operated member H3 and the overflow prevention valve H2. A space is formed.

  As shown in FIG. 3 (c), when the gas flow rate exceeds a certain level, the overflow prevention valve H 2 is moved downstream of the gas flow passage 1 along the axial direction of the gas plug body 2 by the flow pressure of the gas flow rate. The overflow prevention valve H2 moves from the initial position to the operating position. Thereby, the gas flow is blocked by the excessive outflow prevention valve H2 moving to the operating position.

  As shown in FIG. 3 (d), when the gas connector 100 is removed from the gas plug body 2, the pressure of the gas connector 100 on the upstream side of the gas flow passage 1 against the slide valve G by the pressing portion 105 is released. The slide valve G moves to the downstream side of the gas flow passage 1 along the axial direction of the gas plug body 2 by the urging force of the first urging member F1 and the second urging member F2. At this time, with the movement of the slide valve G, the first magnetic body R13 and the second magnetic body R2 are separated from each other, and the repulsive force acting on the operation part R5a of the swing member R5 is released, and the urging member The swinging member R5 swings to one side (counterclockwise in the figure) in the swinging direction by the urging force of R3 and returns to the operation position. When the swing member R5 returns to the operation position, a reset operation is performed in which the pressing action portion R5b of the swing member R5 presses the head portion H3b of the operated member H3 to the upstream side of the gas flow passage 1. FIG. As shown in (a), the overflow prevention valve H2 is returned to the initial position.

Second Embodiment
Also in the second embodiment, the reset operation using the magnetic force is performed on the reset unit R in common with the first embodiment, but the configuration using the magnetic force is different from the first embodiment. Below, the structure which is different from 1st Embodiment is demonstrated, the same code | symbol is attached | subjected about the same structure, and the description may be omitted.

  The reset means R is configured to move the gas valve body 2 from the open position to the closed position in the axial direction of the gas stopper body 2 when the gas connector 100 is detached from the gas stopper body 2, and to connect the gas. In order to return the overflow prevention valve H2 to the initial position during the movement from the closed position to the open position of the slide valve G in the axial direction of the gas stopper main body 2 when the fitting 100 is attached to the gas stopper main body 2. A reset operation for pressing the operation member H3 to the upstream side of the gas flow passage 1 is performed, and at the end of the movement of the slide valve G, the reset operation for the operated member H3 is released.

  Although details will be described later, as shown in FIG. 4, the reset means R has a closed position and an open position so that the non-contact operating portion R <b> 1 provided in the slide valve G approaches and separates the operated member H <b> 3. A first motion converting mechanism R12 that converts the movement of the slide valve G between the first and second non-contact operating portions R1, and a first magnetic body R13 provided in the non-contact operating portion R1 (an example of a magnetic force generating member). (An example of a magnetic force acting means) and a second magnetic body R2 (an example of a magnetic force acting means) provided on the operated member H3 (an example of a magnetic force generating member). Then, the reset means R applies a repulsive force, which is a magnetic force generated between the first magnetic body R13 and the second magnetic body R2, to the operated member H3, so that the non-contact operating portion R1 is in a non-contact state. The operation member H3 is configured to perform a reset operation.

  The non-contact operating portion R1 is configured by a protrusion that extends upstream of the gas flow passage 1, has an upstream end that is spherical, and is integrally formed with the first valve body G1.

The first magnetic body R13 and the second magnetic body R2 are arranged in a state in which they oppose each other in the axial direction of the gas plug main body 2 and exert a repulsive force as a magnetic force. In the present embodiment, the first magnetic body R13 and the second magnetic body R2 are configured as permanent magnets, and are arranged with the same magnetic poles facing each other, thereby exerting a repulsive force.
By adopting the above configuration, the magnetic force acting means as the resetting means R can be applied between the first magnetic body R13 and the second magnetic body R2 when the first magnetic body R13 and the second magnetic body R2 approach each other. A repulsive force as a magnetic force is applied to move the operated member H3 to the upstream side of the gas flow passage 1 in a non-contact state between the non-contact operating portion R1 and the operated member H3.

  As described above, the reset operation is an operation in which a repulsive force as a magnetic force generated between the first magnetic body R13 and the second magnetic body R2 is applied to the operated member H3 to move the operated member H3 to the upstream side. It is. Therefore, as shown in FIG. 4, the non-contact operation unit R1 is moved closer to the operated member H3, and the non-contact operation unit R1 performs a reset operation on the operated member H3 in a non-contact state ( 4 (d)) and the first operation release position (see FIGS. 4 (b) and 4 (c)) for releasing the reset operation by separating the non-contact operating portion R1 from the operated member H3 are gases. Different positions are set in the circumferential direction around the axis along the gas flow direction of the flow passage 1.

  The operated member H3 is disposed at an eccentric position deviated from the center in the flow path radial direction of the gas flow passage 1 toward the end, and the first operating position is an eccentric position as shown in FIG. 4 (d). It is the eccentric position which makes the non-contact operation part R1 approach to the to-be-operated member H3 arrange | positioned. On the other hand, the first operation release position is a position different from the first operation position in the circumferential direction around the axis of the gas flow passage 1 as shown in FIGS. The contact operating portion R1 is positioned to be separated from the operated member H3. Moreover, in Fig.4 (a), it is the position which separates the non-contact operation part R1 from the to-be-operated member H3 in the axial direction of the gas stopper main body 2. FIG.

  As shown in FIGS. 5 and 6, the first motion converting mechanism R12 includes an engagement guide groove R7 formed on the outer periphery of a cylindrical support member R6 that supports the first valve body G1 and the second valve body G2. And a protrusion-like engaged portion 2b formed on the inner wall portion of the gas flow passage 1 and engaged with the engagement guide groove R7. The cylindrical support member R6 is provided in the gas flow path 1 so as to be slidable in the gas flow direction of the gas flow path 1. In the engagement guide groove R7, the upstream portion of the gas flow passage 1 is a linear straight groove R7b along the gas flow direction, and a continuous portion that continues from the downstream end of the straight groove R7b to the downstream side is formed. This is an inclined groove R7a. Thereby, when the engaged portion 2b is engaged and guided in the linear groove R7b during the movement of the slide valve G, the cylindrical support member R6 is moved as it is along the axial direction of the gas plug body 2. The non-contact operation portion R1 is switched to the slide movement conversion state in which the non-contact operation portion R1 is moved along the gas flow direction of the gas flow passage 1. In addition, when the engaged portion 2b is engaged and guided in the inclined groove R7a during the movement of the slide valve G, the rotational movement conversion state in which the gas flow passage 1 is rotated around the axis along the gas flow direction is set. Can be switched. As described above, the first motion conversion mechanism R12 converts the movement of the slide valve G into the movement of the non-contact operation unit R1 in a form of switching between the slide movement conversion state and the rotational motion conversion state.

When the slide valve G moves from the closed position to the open position, the first motion conversion mechanism R12 slides at the initial stage of the movement so as to change from the state of FIG. 4 (a) to the state of FIG. 4 (b). As the conversion state, the non-contact operation unit R1 is moved upstream along the gas flow direction, and then the slide movement conversion state is switched to the rotational motion conversion state, and the axis along the gas flow direction of the gas flow passage 1 is changed. The non-contact operation part R1 is rotated around. Then, the first motion conversion mechanism R12 rotates the non-contact operation unit R1 to the first operation release position after passing the first operation position in the state of switching to the rotational motion conversion state.
Conversely, when the slide valve G moves from the open position to the closed position, the first motion conversion mechanism R12 changes from the state shown in FIG. 4C to the state shown in FIG. Further, as the rotational motion conversion state, the non-contact operating portion R1 is rotated around the axis along the gas flow direction of the gas flow passage 1, and then the rotational motion conversion state is switched to the slide movement conversion state, and the gas flow direction The non-contact operating portion R1 is moved downstream along the line. The first motion conversion mechanism R12 rotates the non-contact operation portion R1 through the first operation position from the first operation release position in the rotational motion conversion state in the initial stage of movement.

Hereinafter, the movement of the slide valve G, the excessive outflow prevention mechanism H, and the reset means R will be described with reference to FIG.
FIG. 4A shows a state where the gas connector 100 is removed from the gas plug body 2. FIG. 4B shows a state in which the gas connector 100 is mounted on the gas plug body 2. FIG. 4C shows a state in which the excessive outflow prevention valve H2 has moved from the initial position to the operating position when the gas connector is mounted on the gas plug body 2. FIG. FIG. 4D shows a state where the reset operation is performed by removing the gas connector 100 from the gas plug body 2.

  As shown in FIG. 4 (a), when the gas connector 100 is removed from the gas stopper body 2, the slide valve G is in the closed position, and the gas flow passage 1 is closed by the slide valve G. It is spoken. At this time, the first motion conversion mechanism R12 engages and guides the engaged portion 2b to the upstream end portion of the engagement guide groove R7, and the engagement guide guides the operated member H3 from the operated member H3 in the gas flow direction. The non-contact operation part R1 is positioned at a separated position.

  As shown in FIG. 4 (b), when the gas connector 100 is attached to the gas plug body 2, the pressing portion 105 of the gas connector 100 presses the slide valve G to the upstream side of the gas flow passage 1, and the slide valve G moves from the closed position to the open position to open the gas flow passage 1. At this time, the first motion conversion mechanism R12 converts the movement of the slide valve G into the movement of the non-contact operation portion R1 by engaging and guiding the engaged portion 2b in the engagement guide groove R7. The first motion conversion mechanism R12 sets the slide movement conversion state in the initial stage of the movement of the slide valve G, moves the non-contact operating portion R1 upstream along the gas flow direction of the gas flow passage 1, and then converts the rotational motion. Switching to the state, the non-contact operating portion R1 is rotated around the axis along the gas flow direction of the gas flow passage 1. Then, the first motion conversion mechanism R12 rotates the non-contact operation unit R1 to the first operation release position after passing the first operation position in the state of switching to the rotational motion conversion state. In the first operation position, a repulsive force as a magnetic force is applied between the first magnetic body R13 provided in the non-contact operating portion R1 and the second magnetic body R2 provided in the operated member H3, thereby The operating member H3 is moved upstream. FIG. 4B shows a state in which the non-contact operation unit R1 is rotated to the first operation release position.

  As shown in FIG. 4 (c), when the gas flow rate becomes an overflow rate above a certain level, the overflow prevention valve H 2 is downstream of the gas flow passage 1 along the axial direction of the gas plug body 2 due to the flow pressure of the gas flow rate. The overflow prevention valve H2 moves from the initial position to the operating position. Thereby, the gas flow is blocked by the excessive outflow prevention valve H2 moving to the operating position.

  As shown in FIG. 4 (d), when the gas connector 100 is removed from the gas plug body 2, the pressure on the slide valve G to the upstream side of the gas flow passage 1 by the pressing portion 105 of the gas connector 100 is released. The slide valve G moves from the open position to the closed position by the urging force of the first urging member F1 and the second urging member F2. At this time, the first motion conversion mechanism R12 converts the movement of the slide valve G into the movement of the non-contact operation portion R1 by engaging and guiding the engaged portion 2b in the engagement guide groove R7. The first motion conversion mechanism R <b> 12 rotates the non-contact operation portion R <b> 1 around the axis along the gas flow direction of the gas flow passage 1 as a rotational motion conversion state at the beginning of the movement of the slide valve G. Here, the first motion conversion mechanism R12 passes the first operation position from the first operation release position and rotates the non-contact operation unit R1. In the first operation position, a repulsive force as a magnetic force is applied between the first magnetic body R13 provided in the non-contact operating portion R1 and the second magnetic body R2 provided in the operated member H3, thereby The operating member H3 is moved upstream. Thereafter, the first operation conversion mechanism switches from the rotational motion conversion state to the slide movement conversion state, and moves the non-contact operation unit R1 downstream along the gas flow direction of the gas flow passage 1. FIG. 4D shows a state in which the non-contact operation unit R1 is rotated to the first operation position.

  As described above, when the slide valve G moves from the open position to the closed position, the first motion conversion mechanism R12 includes the first magnetic body R13 and the operated member provided in the non-contact operation unit R1 during the movement. A first operation position for applying a repulsive force as a magnetic force is passed between the second magnetic body R2 provided on H3 and the operated member H3 is moved to a position where it is separated from the operated member H3 at the end of the movement. ing. When the non-contact operating portion R1 passes through the first operating position, a reset operation is performed to return the overflow prevention valve H2 to the initial position, and finally the non-contact operating portion R1 is covered. The reset operation is canceled by being positioned at a position away from the operation member H3, and the movement of the overflow prevention valve H2 from the initial position to the operating position can be permitted.

  When the slide valve G moves from the closed position to the open position by attaching the gas connector 100 to the gas plug body 2, the first motion conversion mechanism R12 is finally passed in the form in which the first operation position is passed. Since the non-contact operation part R1 is moved to the first operation release position, the reset operation is not limited to the case where the gas connector 100 is detached from the gas stopper body 2 but also when the gas connector 100 is attached to the gas stopper body 2. After that, the reset operation can be canceled.

  When the gas connector 100 is attached to the gas plug body 2, the state shown in FIG. 4A is changed to the state shown in FIG. 4B, and the slide valve G is closed by the pressing portion 105 of the gas connector 100. Therefore, even when the slide valve G is moved, the first motion conversion mechanism R12 sets the first operation position in the state where the slide motion conversion state is switched to the rotational motion conversion state. The non-contact operation portion R1 is finally rotated to the first operation release position in the form of passing. Therefore, the reset operation can be performed when the non-contact operation unit R1 passes the first operation position, and finally the non-contact operation unit R1 is positioned at the first operation release position to release the reset operation. can do. In the first operation position, a repulsive force as a magnetic force is applied between the first magnetic body R13 provided in the non-contact operating portion R1 and the second magnetic body R2 provided in the operated member H3, thereby The operating member H3 is moved upstream. Thus, the reset operation can be performed both when the gas connector 100 is detached from the gas stopper body 2 and when the gas connector 100 is attached to the gas stopper body 2. Therefore, the return to the initial position of the excessive outflow prevention valve H2 can be reliably performed.

<Third Embodiment>
The third embodiment is another embodiment of the second embodiment in which the first motion conversion mechanism R12 converts the movement of the slide valve G into the non-contact operation unit R1. Since the other configuration is the same as that of the second embodiment, the description of the other configuration is omitted. Hereinafter, based on FIG. The explanation will focus on whether it is converted to motion.

  In the second embodiment, the first motion conversion mechanism R12 engages and guides the engaged portion 2b in the linear and inclined engagement guide grooves R7, thereby converting the slide movement conversion state and the rotational motion conversion. The movement of the slide valve G is converted into the movement of the non-contact operating portion R1 in the form of switching to the state.

  In the third embodiment, as shown in FIG. 7, the engagement guide groove R7 is formed in an inclined shape over the entire length. The first motion conversion mechanism R12 moves the slide valve G between the closed position and the open position by engaging and guiding the engaged portion 2b in the engagement guide groove R7. The movement of the slide valve G is converted into the movement of the non-contact operating portion R1 in a form in which the non-contact operating portion R1 is rotated around the axis along the gas flow direction of the gas flow passage 1 from the start to the end of movement.

Similarly to the first operation position and the first operation release position of the second embodiment, the non-contact operation unit R1 is brought close to the operated member H3, and the non-contact operation unit R1 and the operated member H3 are in the non-contact state. And a second operation release position for releasing the reset operation by separating the non-contact operation portion R1 from the operated member H3 (see FIG. 7B). And (c)) are set at different positions in the circumferential direction around the axis along the gas flow direction of the gas flow passage 1.
Here, at the second operation position, the first magnetic body R13 (an example of the magnetic force application means) and the operated member H3 (an example of the magnetic force generation member) provided in the non-contact operation portion R1 (an example of the magnetic force generation member) are provided. A repulsive force as a magnetic force is applied to the provided second magnetic body R2 (an example of magnetic force applying means), and the operated member H3 is moved upstream. Since the first magnetic body R13 and the second magnetic body R2 have the same configuration and properties as those of the second embodiment, detailed description thereof is omitted here.

When the slide valve G moves from the closed position to the open position, the first motion conversion mechanism R12 is from the start of movement to the end of movement so as to change from the state of FIG. 7A to the state of FIG. 7B. Then, after rotating the non-contact operation portion R1 around the axis along the gas flow direction of the gas flow passage 1 to pass the second operation position (see FIG. 7D), the second operation release position (FIG. 7). The non-contact operating portion R1 is rotated until (b).
Conversely, when the slide valve G moves from the open position to the closed position, the first motion conversion mechanism R12 changes from the state of FIG. 7C to the state of FIG. 7A through FIG. 7D. Thus, from the movement start to the movement end, the non-contact operation part R1 is rotated around the axis along the gas flow direction of the gas flow passage 1 to pass the second operation position from the second operation release position. The contact operation unit R1 is rotated.

Hereinafter, the movement of the slide valve G, the excessive outflow prevention mechanism H, and the reset means R will be described with reference to FIG.
FIG. 7A shows a state where the gas connector 100 is removed from the gas plug body 2. FIG. 7B shows a state in which the gas connector 100 is mounted on the gas plug body 2. FIG. 7C shows a state in which the excessive outflow prevention valve H2 has moved from the initial position to the operating position when the gas connector 100 is mounted on the gas plug body 2. FIG. FIG. 7D shows a state in which the reset operation is performed by removing the gas connector 100 from the gas plug body 2.

  As shown in FIG. 7A, when the gas connector 100 is removed from the gas plug body 2, the slide valve G is in the closed position, and the gas flow passage 1 is closed by the slide valve G. It is spoken. At this time, the first motion conversion mechanism R12 engages and guides the engaged portion 2b to the upstream end portion of the engagement guide groove R7, and the engagement guide guides the operated member H3 from the operated member H3 in the gas flow direction. The non-contact operation unit R1 is moved to a position away from it.

  As shown in FIG. 7B, when the gas connector 100 is attached to the gas plug body 2, the pressing portion 105 of the gas connector 100 presses the slide valve G to the upstream side of the gas flow passage 1, and the slide valve G moves from the closed position to the open position to open the gas flow passage 1. At this time, with the movement of the slide valve G, the first motion conversion mechanism R12 engages and guides the engaged portion 2b with the engagement guide groove R7 and rotates the non-contact operation portion R1. The rotation of the non-contact operation portion R1 due to the movement of the slide valve G is performed by rotating the non-contact operation portion R1 around the axis along the gas flow direction of the gas flow passage 1 from the start of movement to the end of movement. After passing the operation position (see FIG. 7D), the non-contact operation portion R1 is rotated to the second operation release position (see FIG. 7B). In the second operation position, a repulsive force as a magnetic force is applied between the first magnetic body R13 provided in the non-contact operation portion R1 and the second magnetic body R2 provided in the operated member H3, thereby The operating member H3 is moved upstream. FIG. 7B shows a state in which the non-contact operation unit R1 is rotated to the second operation release position.

  As shown in FIG. 7 (c), when the gas flow rate exceeds a certain level, the overflow prevention valve H2 is moved downstream of the gas flow passage 1 along the axial direction of the gas plug body 2 by the flow pressure of the gas flow rate. The overflow prevention valve H2 moves from the initial position to the operating position. Thereby, the gas flow is blocked by the excessive outflow prevention valve H2 moving to the operating position.

  As shown in FIG. 7 (d), when the gas connector 100 is removed from the gas plug body 2, the pressure on the slide valve G to the upstream side of the gas flow passage 1 by the pressing portion 105 of the gas connector 100 is released. The slide valve G is moved from the open position to the closed position by the urging force of the first urging member F1 and the second urging member F2. At this time, with the movement of the slide valve G, the first motion conversion mechanism R12 engages and guides the engaged portion 2b with the engagement guide groove R7 and rotates the non-contact operation portion R1. The rotation of the non-contact operation portion R1 due to the movement of the slide valve G is performed by rotating the non-contact operation portion R1 around the axis along the gas flow direction of the gas flow passage 1 from the start of movement to the end of movement. Passing from the operation release position through the second operation position for applying a repulsive force as a magnetic force between the first magnetic body R13 provided in the non-contact operating portion R1 and the second magnetic body R2 provided in the operated member H3. After that, finally, as shown in FIG. 7A, the non-contact operating portion R1 is rotated to a position away from the operated member H3 in the gas flow direction. In the second operation position, a repulsive force as a magnetic force is applied between the first magnetic body R13 provided in the non-contact operation portion R1 and the second magnetic body R2 provided in the operated member H3, thereby The operating member H3 is moved upstream. FIG. 7D shows a state in which the non-contact operation unit R1 is positioned at the second operation position.

  The first motion conversion mechanism R12 is finally configured to pass the second operation position even when the slide valve G moves from the closed position to the open position by attaching the gas connector 100 to the gas plug body 2. Since the non-contact operation portion R1 is moved to the second operation release position, the reset operation is not limited to the case where the gas connector 100 is detached from the gas stopper body 2 but also when the gas connector 100 is attached to the gas stopper body 2. After that, the reset operation can be canceled.

  When the gas connector 100 is attached to the gas plug body 2, the state shown in FIG. 7A is changed to the state shown in FIG. 7B, and the slide valve G is closed by the pressing portion 105 of the gas connector 100. Therefore, even when the slide valve G is moved, the first motion conversion mechanism R12 does not contact the second operation release position in the form of passing the second operation position. The operation unit R1 is rotated. In the second operation position, a repulsive force as a magnetic force is applied between the first magnetic body R13 provided in the non-contact operation portion R1 and the second magnetic body R2 provided in the operated member H3, thereby The operating member H3 is moved upstream. Therefore, the reset operation can be performed when the non-contact operation unit R1 passes through the second operation position, and finally the non-contact operation unit R1 is positioned at the second operation release position to cancel the reset operation. can do. As described above, the reset operation can be performed both when the gas connector 100 is detached from the gas stopper body 2 and when the gas connector 100 is attached to the gas stopper body 2. The return to the initial position of the excessive outflow prevention valve H2 can be reliably performed.

<Fourth embodiment>
When the gas connector 100 is detached from the gas stopper main body 2, the reset means R returns the slide valve G to the closed position in the axial direction of the gas stopper main body 2 (arrow X direction in FIG. 8). Along with the movement, the reset operation is performed to press the head H3b of the operated member H3 to the upstream side of the gas flow passage 1 in order to return the overflow prevention valve H2 to the initial position.

The reset means R is movable upstream in the axial direction of the gas flow passage 1 and can be operated to press the operated member H3 of the excessive outflow prevention mechanism H, and the upstream side to the operating side for pressing the operated member H3. A first urging member F1 that urges the member R4, and a first magnetic body that urges the upstream member R4 (an example of a magnetic force generating member) with a magnetic force toward a release operation side that releases the pressing operation of the operated member H3. R13 and a second magnetic body R2 (an example of a magnetic force acting means).
The first biasing member F1 is provided between the first valve body G1 and the upstream member R4, biases the upstream member R4 to the operation side, and closes the first valve body G1 from the open position. It is provided to urge toward the side. That is, the first urging member F1 is configured to urge the slide valve G (an example of a magnetic force generating member) to return to the closed position side and urge the upstream member R4 to the operation side. ing.
The first magnetic body R13 and the second magnetic body R2 face each other in the axial direction of the gas flow passage 1 and attract each other, and one of them is provided on the first valve body G1, and the other is provided on the upstream member R4. It has been. At least one of the first magnetic body R13 and the second magnetic body R2 is composed of a permanent magnet. Here, in order to make the first magnetic body R13 and the second magnetic body R2 attract each other, when both are composed of permanent magnets, the magnetic poles different from each other are arranged facing the other side.
As shown in FIG. 8, the upstream member R4 is disposed in the third flow path portion 1c of the gas flow path 1, and has a guide surface R4a along the inner wall of the third flow path portion 1c. The guide surface R4a is slidably disposed in a state along the inner wall of the third flow path portion 1c.

When the gas connector 100 is removed from the gas stopper main body 2 and the slide valve G moves from the open position to the closed position, the reset means R applies an urging force to the operation side with respect to the upstream member R4 to the upstream member R4. The upstream member R4 is slid to the operation side with a force larger than the magnetic force to the release operation side, and the head H3b of the operated member H3 is pressed by the pressing portion R4c of the upstream member R4. Then, the reset operation is performed to move the excessive outflow prevention valve H2 to the upstream initial position together with the upstream member R4.
On the other hand, when the gas connector 100 is attached to the gas plug body 2 and the slide valve G moves from the closed position to the open position, the biasing force to the operation side for the upstream member R4 is released to the upstream member R4. The upstream member R4 is slid to the operation release side by making it smaller than the magnetic force to the side, the operated member H3 is protruded to the downstream side, and the overflow prevention valve H2 is moved from the initial position to the operating position. Perform the allowed reset release operation.
By adopting the above configuration, the magnetic force acting means as the resetting means R is configured so that the upstream side of the gas flow passage 1 to the operated member H3 is pressed or released by the slide valve G and the upstream side member R4. It works to switch in a non-contact state.

Hereinafter, the movement of the slide valve G, the excessive outflow prevention mechanism H, and the reset means R will be described with reference to FIG.
FIG. 8A shows a state where the gas connector 100 is removed from the gas plug body 2. FIG. 8B shows a state in which the gas connector 100 is mounted on the gas plug body 2. FIG. 8C shows a state in which the excessive outflow prevention valve H2 has moved from the initial position to the operating position when the gas connector 100 is mounted on the gas plug body 2. FIG. FIG. 8D shows a state in which the reset operation is executed by removing the gas connector 100 from the gas plug body 2.

  As shown in FIG. 8 (a), when the gas connector 100 is removed from the gas plug body 2, the slide valve G is in the closed position, and the gas flow passage 1 is closed by the slide valve G. It is spoken. At this time, the force acting on the upstream member R4 is set such that the biasing force to the operation side by the first biasing member F1 is larger than the magnetic force to the operation release side by the first magnetic body R13 and the second magnetic body R2. Therefore, it is urged to the third operation position (see FIG. 8A), and the pressing portion R4c of the upstream member R4 moves the head H3b of the operated member H3 to the upstream side of the gas flow passage 1. It will be in the state which is pressing, and will be in the state where reset operation is performed. At this time, the excessive outflow prevention valve H2 is located at the initial position by the reset operation.

  As shown in FIG. 8 (b), when the gas connector 100 is attached to the gas plug body 2, the pressing portion 105 of the gas connector 100 presses the slide valve G to the upstream side of the gas flow passage 1, and the slide valve G moves from the closed position to the open position to open the gas flow passage 1. At this time, with the movement of the slide valve G, the magnetic force on the operation release side with respect to the upstream member R4 is made larger than the biasing force with respect to the upstream side member R4 on the operation side, and the upstream member R4 is operated from the operation side. It is biased toward the release side, and moved from the third operation position to the third operation release position (see FIG. 8B). By the movement of the upstream member R4, the reset operation in which the pressing portion R4c of the upstream member R4 presses the head portion H3b of the operated member H3 to the upstream side of the gas flow path 1 is released. When the reset operation is released, the head H3b of the operated member H3 is returned to the protruding position by the urging force of the fourth urging member F4. In this way, when the operated member H3 is returned to the protruding position, the movement of the overflow prevention valve H2 from the initial position to the operating position is allowed between the operated member H3 and the overflow prevention valve H2. A space is formed.

  As shown in FIG. 8 (c), when the gas flow rate becomes an overflow rate that exceeds a certain level, the overflow prevention valve H2 is moved along the axial direction of the gas plug body 2 by the flow pressure of the gas flow rate. Moving to the downstream side, the excessive outflow prevention valve H2 moves from the initial position to the operating position. As described above, the excessive flow prevention valve H2 moves to the operating position, whereby the gas flow in the gas flow passage 1 is blocked.

  As shown in FIG. 8 (d), when the gas connector 100 is removed from the gas plug body 2, the pressure of the gas connector 100 on the upstream side of the gas flow passage 1 against the slide valve G by the pressing portion 105 is released. The slide valve G moves to the downstream side of the gas flow passage 1 along the axial direction of the gas plug body 2 by the urging force of the first urging member F1 and the second urging member F2. At this time, along with the movement of the slide valve G, the urging force to the operation side with respect to the upstream member R4 is made larger than the magnetic force to the operation release side with respect to the upstream member R4, and the upstream member R4 is moved from the operation release side. It is urged to the operation side to move from the third operation release position to the third operation position. By the movement of the upstream member R4, a reset operation is performed in which the pressing portion R4c of the upstream member R4 presses the head portion H3b of the operated member H3 toward the upstream side of the gas flow passage 1. When the reset operation is performed, the overflow prevention valve H2 moves together with the operated member H3 to the upstream side of the gas flow passage 1, and is returned to the initial position.

<Fifth Embodiment>
As shown in FIG. 9, in the fifth embodiment, the reset means R includes a rotating member R10 that is rotatable around an axis along the gas flow direction of the gas flow passage 1, and a position between a closed position and an open position. A second motion conversion mechanism R11 capable of converting the movement of the slide valve G into the rotational motion of the rotary member R10 is provided. Although details will be described later, the rotating member R10 performs a reset operation by moving the operated member H3 to the downstream side in a non-contact state using a magnetic force due to rotation accompanying the movement of the slide valve G. It is configured.

The rotating member R10 is formed in a substantially conical shape protruding downstream from the upstream end of the downstream portion R10a and the downstream portion R10a formed in a rod shape extending in the gas flow direction of the gas flow passage 1. And a non-contact operation portion R1. A disk-like support portion R10c extending radially outward from the downstream portion R10a is rotatably supported by the inner wall portion of the gas flow passage 1, and the rotation member R10 is supported by the gas in the gas flow passage 1 by this support. It is rotatably supported around an axis P along the flow direction.
In the present embodiment, the non-contact operation portion R1 (an example of a magnetic force generation member) is provided with a first magnetic body R13 (an example of a magnetic force application means), and the second member is an operation target H3 (an example of a magnetic force generation member). A magnetic body R2 (an example of a magnetic force acting means) is provided, and when the non-contact operating portion R1 approaches the operated member H3, a repulsive force as a magnetic force is generated between the first magnetic body R13 and the second magnetic body R2. It is comprised so that it may act, The to-be-operated member H3 moves to the upstream side with the said repulsive force.
The first magnetic body R13 and the second magnetic body R2 are arranged in a state in which they oppose each other in the axial direction of the gas plug main body 2 and exert a repulsive force as a magnetic force. In the present embodiment, the first magnetic body R13 and the second magnetic body R2 are configured as permanent magnets, and are arranged with the same magnetic poles facing each other, thereby exerting a repulsive force.
In the fourth embodiment, foreign matter adheres to the first magnetic body R13 or the second magnetic body R2, and the magnetic force acting between the first magnetic body R13 and the second magnetic body R2 due to the foreign matter. In order to prevent inhibition, it is preferable to provide a cylindrical member that isolates the space between the first magnetic body R13 and the second magnetic body R2 from the gas flow passage 1. The cylindrical member is preferably made of a stretchable material, and even when the interval between the first magnetic body R13 and the second magnetic body R2 varies, the cylinder member expands and contracts following the variation in the interval. Provided.

  As described above, the reset operation causes the non-contact operation portion R1 of the rotating member R10 to approach the operated member H3, and due to the repulsive force as the magnetic force between the first magnetic body R13 and the second magnetic body R2, This is an operation of pressing the operated member H3 upstream. Therefore, as shown in FIG. 9, the fourth operation position in which the non-contact operation portion R1 of the rotating member R10 is moved closer to the operated member H3 and the reset operation is performed at the non-contact operation portion R1 (see FIG. 9D) And the fourth operation release position (see FIGS. 9A to 9C) for releasing the reset operation by separating the non-contact operation portion R1 of the rotating member R10 from the operated member H3. They are set at different positions in the circumferential direction around the axis along the gas flow direction.

  In the fourth operation position, since the non-contact operation portion R1 is brought close to the operated member H3, as shown in FIG. 9D, in the circumferential direction around the axis along the gas flow direction of the gas flow passage 1 The position of the operated member H3 is set. On the other hand, the non-contact operating portion R1 is separated from the operated member H3 at a position deviated from the position where the operated member H3 is present in the circumferential direction around the axis along the gas flow direction of the gas flow passage 1. Therefore, as shown in FIGS. 9 (a) to 9 (c), the fourth operation release position is at a position deviated from the position where the operated member H3 exists around the axis along the gas flow direction of the gas flow passage 1. Is set.

  The second motion conversion mechanism R11 moves the slide valve G by rotation of the rotary member R10 by screwing the first screw portion R11a formed on the slide valve G and the second screw portion R11b formed on the rotary member R10. It has been converted to movement. The first screw portion R11a is constituted by a female screw, the second screw portion R11b is constituted by a male screw, and both the first screw portion R11a and the second screw portion R11b are gas in the gas flow passage 1. It is formed so as to be spiral around the axis P along the flow direction. As for the first screw portion R11a, the upstream portion of the first valve element G1 in the slide valve G is configured by a cylindrical portion G1b, and the first screw portion R11a is formed on the inner wall portion of the cylindrical portion G1b. ing. About 2nd screw part R11b, it forms in the outer peripheral part of downstream site | part R10a in rotating member R10. Incidentally, although not shown, the first valve body G1 is formed with a groove or the like that engages with a convex portion protruding from the inner wall portion of the gas flow passage 1, and is along the gas flow direction of the gas flow passage 1. Without rotating around the axis P, the gas flow path 1 can move in the gas flow direction.

When the slide valve G moves from the closed position to the open position, the second motion conversion mechanism R11 changes from the state of FIG. 9A to the state of FIG. 9B through the state of FIG. 9D. In addition, the non-contact operation portion R1 is positioned at the fourth operation position (see FIG. 9D) during the movement of the slide valve G, and the non-contact operation portion R1 is moved to the fourth operation release position (FIG. 9 ( The rotating member R10 is rotated so as to be positioned at b).
Conversely, even when the slide valve G moves from the open position to the closed position, the first motion conversion mechanism R12 moves from the state of FIG. 9C to the state of FIG. During the movement of the slide valve G, the non-contact operation part R1 is positioned at the fourth operation position (see FIG. 9D) so that the non-contact operation part R1 is moved to the fourth operation release position. The rotating member R10 is rotated so as to be positioned (see FIG. 9A).

Hereinafter, the movement of the slide valve G, the excessive outflow prevention mechanism H, and the reset means R will be described with reference to FIG.
FIG. 9A shows a state where the gas connector 100 is removed from the gas plug body 2. FIG. 9B shows a state where the gas connector 100 is attached to the gas plug body 2. FIG. 9 (c) shows a state in which the overflow prevention valve H <b> 2 has moved from the initial position to the operating position when the gas connector 100 is attached to the gas stopper body 2. FIG. 9D shows a state in which a reset operation is performed by removing the gas connector 100 from the gas plug body 2.

  As shown in FIG. 9 (a), when the gas connector 100 is removed from the gas stopper body 2, the slide valve G is in the closed position, and the gas flow passage 1 is closed by the slide valve G. It is spoken. At this time, the second motion conversion mechanism R11 releases the magnetic force between the first magnetic body R13 and the second magnetic body R2 by separating the non-contact operating portion R1 from the operated member H3 and cancels the reset operation. The rotating member R10 is rotated to the fourth operation release position.

  As shown in FIG. 9B, when the gas connector 100 is attached to the gas plug body 2, the pressing portion 105 of the gas connector 100 presses the slide valve G to the upstream side of the gas flow passage 1, and the slide valve G moves from the closed position to the open position to open the gas flow passage 1. At this time, the second motion conversion mechanism R11 converts the movement of the slide valve G into the rotational motion of the rotating member R10. In the rotation of the rotation member R10 by the movement of the slide valve G, the rotation member R10 is started to rotate from the fourth operation release position, and the non-contact operation portion R1 is brought close to the operated member H3 during the rotation, so that the first magnetic body A repulsive force acting as a magnetic force is applied between R13 and the second magnetic body R2 to move the operated member H3 to the upstream side, passing the fourth operation position for performing the reset operation, and non-contact at the end of the rotation. The operating member R1 is separated from the operated member H3, the repulsive force as the magnetic force between the first magnetic body R13 and the second magnetic body R2 is released, and the rotating member is moved to the fourth operation release position for releasing the reset operation. R10 is rotated. FIG. 9B shows a state in which the rotating member R10 has been rotated to the fourth operation release position.

  As shown in FIG. 9 (c), when the gas flow rate exceeds a certain level, the overflow prevention valve H 2 is moved downstream of the gas flow passage 1 along the axial direction of the gas plug body 2 by the flow pressure of the gas flow rate. The overflow prevention valve H2 moves from the initial position to the operating position. Thereby, the gas flow is blocked by the excessive outflow prevention valve H2 moving to the operating position.

  As shown in FIG. 9 (d), when the gas connector 100 is removed from the gas plug body 2, the pressure on the upstream side of the gas flow passage 1 against the slide valve G by the pressing portion 105 of the gas connector 100 is released. The slide valve G moves from the open position to the closed position along the axial direction of the gas plug body 2 by the urging force of the first urging member F1 and the second urging member F2. At this time, the second motion conversion mechanism R11 converts the movement of the slide valve G into the rotational motion of the rotating member R10. In the rotation of the rotation member R10 due to the movement of the slide valve G, the rotation member R10 is rotated from the fourth operation release position, and the non-contact operation portion R1 is brought closer to the operated member H3 during the rotation, thereby the first magnetic body R13. A repulsive force as a magnetic force is applied between the second magnetic body R2 and the rotating member R10 is rotated to the fourth operation release position where the reset operation is released. FIG. 9D shows a state in which the rotating member R10 is rotated to the fourth operation position. Finally, as shown in FIG. 9A, the rotating member R10 reaches the fourth operation release position. It is rotated.

  As described above, when the slide valve G moves from the open position to the closed position, the second motion conversion mechanism R11 passes through the fourth operation position during the movement and rotates to the fourth operation release position when the movement ends. Since the member R10 is rotated, the reset operation is performed when the rotating member R10 passes through the fourth operation position, and the overflow prevention valve H2 can be returned to the initial position, and finally the rotating member. R10 is positioned at the fourth operation release position, the reset operation is released, and the movement of the overflow prevention valve H2 from the initial position to the operating position can be permitted.

  Even when the slide valve G moves from the closed position to the open position by attaching the gas connector 100 to the gas stopper main body 2, the second motion conversion mechanism R11 finally passes through the fourth operation position. 4 Since the rotating member R10 is rotated to the operation release position, the reset operation is performed not only when removing the gas connector 100 from the gas stopper body 2 but also when attaching the gas connector 100 to the gas stopper body 2. Thereafter, the reset operation can be canceled.

  When the gas connector 100 is attached to the gas plug body 2, the state shown in FIG. 9A is changed to the state shown in FIG. 9B, and the slide valve G is closed by the pressing portion 105 of the gas connector 100. Therefore, even when the slide valve G is moved, the second motion conversion mechanism R11 finally passes the fourth operation position while the slide valve G is moving. The rotating member R10 is rotated to the fourth operation release position. In the fourth operation position, a repulsive force as a magnetic force is applied between the first magnetic body R13 provided in the non-contact operation portion R1 and the second magnetic body R2 provided in the operated member H3, thereby The operating member H3 is moved upstream. Therefore, when the rotating member R10 passes through the fourth operation position, the reset operation can be performed, and finally, the rotating member R10 can be positioned at the fourth operation release position to release the reset operation. . Thus, the reset operation can be performed both when the gas connector 100 is detached from the gas stopper body 2 and when the gas connector 100 is attached to the gas stopper body 2. Therefore, the return to the initial position of the excessive outflow prevention valve H2 can be reliably performed.

<Sixth Embodiment>
In the embodiment described so far, the gas valve according to the present invention is moved by moving the slide valve G between the closed position and the open position with the attachment and detachment of the gas connector 100 with respect to the gas plug body 2. The gas plug according to the present invention is configured as a so-called gas outlet that performs switching between supply and stop of gas to the gas appliance.Hereinafter, the slide valve is closed and opened by manual operation with respect to the operation unit. An embodiment configured as a so-called knob-equipped gas stopper that performs switching between supply and stop of gas to the gas appliance will be described with reference to FIGS. 15 to 21. In addition, about the structure similar to embodiment described so far, description may be omitted.

As shown in FIGS. 15 and 16, the gas stopper configured as a gas stopper with a knob according to the present embodiment includes a valve housing portion 5, a gas inflow path 1 </ b> A that opens to the valve housing portion 5, and a gas. The outflow path 1B is accommodated in the gas stopper body 2 formed inside, the valve accommodating part 5, and the valve mechanism part A that opens and closes between the gas inflow path 1A and the gas outflow path 1B, and the operation part 11 An operation mechanism B that opens and closes the valve mechanism A in accordance with the operation is provided.
Hereinafter, detailed configurations of the gas stopper main body 2, the valve mechanism portion A, and the operation mechanism portion B will be sequentially described.

[Gas stopper body]
Each of the gas inflow path 1A and the gas outflow path 1B is a flow path having a circular cross section disposed inside the gas stopper main body 2 in a state where the axes X and Y intersect each other at a right angle. Specifically, the gas plug of the present embodiment is configured as a so-called L-shaped gas plug by arranging the axis X of the gas inflow passage 1A in the vertical direction and arranging the axis Y of the gas outflow passage 1B in the horizontal direction. Has been. The L-shaped gas plug thus configured discharges the gas g flowing into the gas plug main body 2 from the bottom to the top in a horizontal direction, and is applied to a gas device (not shown) or the like disposed on the side. Supply. In the present embodiment, the gas stopper is not configured as the L-shaped gas stopper, but the crossing angle between the gas inlet path 1A and the gas outlet path 1B is appropriately set, for example, by providing the gas outlet path 1B obliquely downward. It can be modified.
Further, the valve accommodating part 5 is a space having a circular cross section formed inside the gas stopper main body 2 on the upper extension of the gas inflow path 1A, and the gas inflow path 1A opens below the valve accommodating part 5. The gas outflow passage 1B is opened to the side of the valve accommodating portion 5.

(Valve mechanism)
When one of the gas inflow passage 1A and the gas outflow passage 1B is a gas inflow passage 1A, and a specific axis that is an axis of the specific gas flow passage is an axis X of the gas inflow passage 1A, the valve mechanism section A slides along the axis X which is the specific axis and the valve seat 6 formed in the opening 1Aa with respect to the valve accommodating part 5 of the gas inflow path 1A which is the specific gas flow path, and the valve seat 6 Between the closed position where the opening 1Aa is seated and the opening 1Aa slides along the axis X and is spaced apart from the valve seat 6 to open the opening 1Aa. And a slide valve G ′.
That is, the slide valve G ′ slides in the vertical direction along the axis X of the gas inflow passage 1A arranged in the vertical direction. The lower end position of the slide range is a closed position where the slide valve G ′ is seated on the valve seat 6 and closes the opening 1Aa. The upper end position of the same range is the slide valve G ′. It becomes an opening position which spaces apart and opens the opening 1Aa. Therefore, in the present embodiment, the closed position side indicates the lower side, and the open position side indicates the upper side.
In the first embodiment, the first valve element G1 functions as a valve element that closes the gas flow passage 1, but in the third embodiment, the first valve element G1 includes The first notch part G4 and the fourth notch part G5 are provided, and the function as a valve body is not exhibited.
Here, FIGS. 18 and 19 show a state in which the slide valve G ′ is in the closed position, and FIGS. 15 and 17 show a state in which the slide valve G ′ is in the open position.

(Operation mechanism)
The operation mechanism unit B transmits a downward pressing operation on the operation unit 11 by the operator to the slide valve G ′, and closes the slide unit C along the axis X along the slide line C that can slide together with the slide valve G ′. It comprises an axis urging means D that urges upward from the position side toward the open position side, and a guide portion 20 that guides the slide of the slide portion C.
The operation portion 11 is provided as an upper surface of the upper bottom portion of the reverse cup-shaped operation button 10 that is arranged coaxially with the axis X of the gas inflow passage 1A and covers the upper portion of the gas plug body 2.
The operation button 10 is provided so as to be slidable in the vertical direction along the axis X. Further, the operation button 10 is provided between the lower surface of the upper bottom portion of the operation button 10 and the upper surface of the gas plug body 2. A coil spring 13 for biasing the operation button 10 upward is inserted.
The coil spring 13 is an ordinary coil spring in which winding portions are separated from each other between adjacent ones. When the coil spring 13 receives a compressive force along the axis X, an expansion force is generated along the coaxial line X. .

The slide portion C includes a guide pin 18 that is rotatably provided around the axis X, and a rotation biasing means E that biases the guide pin 18 in a direction around the axis X.
The guide pin 18 is disposed coaxially with the axis X and is formed to protrude outward in the radial direction of the circular cross section of the shaft member 17 on the outer surface of the cylindrical shaft member 17 that can slide along the axis X. Yes.
On the other hand, the rotation urging means E has one end fixed to the lower surface of the upper bottom portion of the operation button 10 and the other end fixed to the upper surface of the shaft member 17 so as to be coaxial with the axis X of the gas inflow passage 1A. The torsion coil spring 15 is arranged.
The torsion coil spring 15 is a coil spring in which the winding portions are in close contact with each other between adjacent portions, and receives a torsional moment in a certain rotation direction, thereby rotating in a direction opposite to the rotation direction (right direction in FIG. 15). Generates a repulsive force. Furthermore, the torsion coil spring 15 is configured such that the winding portion is in close contact with each other between adjacent portions, so that the downward pressing force along the axis X of the operation unit 11 received from one end side is applied to the shaft member on the other end side. 17 can be transmitted.
Protrusions 16 are provided at both ends of the torsion coil spring 15, and a winding portion including the protrusions 16 is formed on the groove 12 formed on the lower surface of the upper bottom of the operation button 10 and on the upper surface of the shaft member 17. By fitting into the formed groove portion 19, both ends of the torsion coil spring 15 are fixed to the operation button 10 and the shaft member 17.

The axis urging means D is composed of a normal coil spring 24 whose winding portions are separated from each other between adjacent ones, and generates an expansion force along the coaxial line X by receiving a compression force along the axis X.
This coil spring 24 is inserted in a compressed state along the axis X between the lower surface of the slide valve G ′ and the upper surface of the cylindrical member H1 provided below the valve housing portion 5. The slide valve G ′ and the slide portion C are urged upward along the axis X from the closed position side to the open position side in a form in which the slide valve G ′ is urged upward with respect to the upper surface of H1.

The guide portion 20 is configured by a cylindrical member 21 having a guide groove 22 formed on the outer surface for guiding the guide pin 18 to slide on the axis line X and to rotate around the axis line X.
Further, the guide groove 18 is rotated against the urging force of the torsion coil spring 15 when a pressure is applied to the operation portion 11 to displace the slide valve G ′ from the open position to the closed position. Rotation guides 22a and 22b, and a locking mechanism in which the guide pin 18 biased by the coil spring 24 and the torsion coil spring 15 is locked while the slide valve G ′ is maintained in the closed position when the pressing force is subsequently removed. A portion 22c is formed.
With such a configuration, the gas stopper according to the present embodiment, as will be described in detail later, is closed by a single pressing operation on the operation unit 11 and then opened by a single pressing operation on the operation unit 11. A so-called push-push type opening / closing operation in which a plug operation is performed is realized.

As shown in FIG. 20A, in this guide groove 22, the end portions on the closed position side of the rotation guide portions 22 a and 22 b are locking portions in the rotational direction against the urging force around the axis X of the torsion coil spring 15. It is located on the far side of rotation (for example, the left side in FIG. 20A) from 22c. A bulging portion 22d formed by the guide groove 22 bulging in the urging direction side (that is, the upper side) along the axis X of the coil spring 24 from the end portion on the closed position side of the rotation guide portions 22a and 22b to the locking portion 22c. Is formed.
Therefore, the guide pin 18 can move directly along the upper side of the guide groove 22 from the end of the rotation guide portions 22a and 22b on the closed position side toward the locking portion 22c through the bulging portion 22d. Thus, it is appropriately locked to the locking portion 22c. The shape and the like of the bulging portion 22d can be changed as appropriate, and the bulging portion 22d is omitted, and a locking portion 22c that cuts upward is formed in the middle of the closed position side rotation guiding portion 22b. When the pressing force f11 applied to the operating portion 11 is removed with the guide pin 18 at the position side end, the guide pin 18 slightly reverses the closed position side rotation guiding portion 22b and is in the middle You may comprise so that it may be latched by 22c.

The rotation guide portions 22a and 22b are arranged in the direction around the axis X, and are located closer to the closed position than the locking portion 22c and the opening position positioned closer to the opening position than the locking portion 22c. It consists of a position side rotation guiding part 22a.
Furthermore, when the orthogonal plane of the axis X of the gas inflow passage 1A is S, the lead angle αb of the guide groove 22 with respect to the orthogonal plane S in the closed position side rotation guiding portion 22b is the same lead angle αa of the opening position side rotation guiding portion 22a. Is set smaller than.
That is, in the closing operation, the guide pin 18 that is guided along the rotation guide portions 22a and 22b by applying a pressing force to the operation portion 11 is opened from the open position side to the position where the locking portion 22c is formed. It is displaced along the position-side rotation guiding portion 22a, and the closed position-side rotation guiding portion 22b is located between the position where the locking portion 22c is formed and the end on the closed position side formed on the far side of the rotation. Will be displaced along.
Since the lead angle αb of the closed position side rotation guiding portion 22b is smaller than the lead angle αa of the open position side rotation guiding portion 22a, the guide pin 18 is closed against the biasing force of the torsion coil spring 15 and the position side rotation guiding is performed. The pressing force with respect to the operation unit 11 necessary for displacing along the portion 22b is larger than when displacing along the opening position side rotation guiding portion 22a.
Hereinafter, the detailed configuration of the guide groove 22 will be described based on FIGS. 20 and 21 together with the transition state of the guide pin 18 in the guide groove 22 during the opening and closing operation of the gas stopper according to the present embodiment. 20 and 21, the guide groove 22 is shown in a state where the outer peripheral surface of the cylindrical member 21 is developed on a plane.

[When closing operation]
First, the transition state of the position of the guide pin 18 in the guide groove 22 during the closing operation of the gas stopper according to the present embodiment will be described with reference to FIG.
When the slide valve G ′ is in the open position and is open (see FIG. 15), the guide pin 18 opens the rotation guide portion 22a in the guide groove 22 as shown in FIG. It is located on the side end (upper right end in FIG. 20A).
Next, when a pressing force f11 is applied to the operation portion 11 and the pressing force f11 is transmitted to the slide portion C, the guide pin 18 provided on the slide portion C is as shown in FIG. The guide groove 22 moves to the boundary between the opening position side rotation guiding portion 22a and the closing position side rotation guiding portion 22b.
During this movement, the guide pin 18 is displaced downwardly from the open position side to the closed position side against the upward biasing force fd from the closed position side along the axis X by the coil spring 24 toward the open position side. At the same time, the torsion coil spring 15 rotates against the urging force fe in the direction around the axis X.
That is, the upward biasing force fd and the rightward biasing force fe in FIG. 20B are applied to the guide pin 18 positioned at the boundary between the opening position side rotation guiding portion 22a and the closing position side rotation guiding portion 22b. It has been added.

Further, when a relatively large pressing force f11 is applied to the operation portion 11, the guide pin 18 is moved toward the back of the rotation position of the closed position side rotation guiding portion 22b in the guide groove 22 as shown in FIG. c), the slide valve G ′ is displaced to the closed position (see FIG. 18).
Also in this movement, the guide pin 18 moves in the lower left direction against the upward biasing force fd by the coil spring 24 and the rightward biasing force fe by the torsion coil spring 15, and the guide pin 18 after the movement Is a state in which an upward biasing force fd and a rightward biasing force fe are added.
The urging forces fd and fe increase as the amount of displacement of the guide pin 18 in the lower left direction increases, but the same reference numerals are used to simplify the explanation.

Next, when the pressing force f11 applied to the operation unit 11 as described above is removed, an upward biasing force fd by the coil spring 24 and a rightward application by the torsion coil spring 15 are removed as shown in FIG. Due to the force fe, the guide pin 18 moves along the bulging portion 22d to a position where it abuts on the locking portion 22c in the upper right direction.
The angle of the wall surface with which the guide pin 18 of the locking portion 22c abuts is such that the guide pin 18 to which the resultant force of the urging forces fd and fe is applied is prevented from being displaced toward the rotation guide portions 22a and 22b. Since it is set, the position of the guide pin 18 is maintained in a state of being locked to the locking portion 22c. As a result, as shown in FIG. 19, the slide valve G ′ is maintained in the closed position. Thus, the closing operation is completed.

(When opening)
Next, the transition state of the position of the guide pin 18 in the guide groove 22 during the opening operation of the gas stopper according to the present embodiment will be described based on FIG.
When the slide valve G ′ is in the closed position and plugged (see FIG. 19), the guide pin 18 is in a position to be locked to the locking portion 22c as shown in FIG. 21 (a). .
Next, when a relatively small pressing force f11 ′ is applied to the operation portion 11 and the pressing force f11 ′ is transmitted to the slide portion C, the guide pin 18 provided on the slide portion C is shown in FIG. As shown in FIG. 2, the lever is slightly displaced in the lower left direction against the urging forces fd and fe, so that the latching portion 22c is unlocked.
At this time, since the pressing force f11 ′ applied to the operation unit 11 is smaller than the pressing force f11 applied during the closing operation described above, the guide pin 18 is, for example, the closed position side rotation guiding unit 22b. It does not displace to the closed position side.
Further, the lead angle αb of the closed position side rotation guiding portion 22b is smaller than the lead angle αa of the open position side rotation guiding portion 22a, and the guide pin 18 is closed against the biasing force fe of the torsion coil spring 15. Since a relatively large pressing force is required for displacing to the closing position side along 22b, when the operating portion 11 is pressed with a pressing force f11 'smaller than the pressing force, the guide pin 18 is closed. There is no displacement toward the back of the rotation along the position side rotation guiding portion 22b.

Next, when the pressing force f11 ′ applied to the operation unit 11 as described above is removed, an upward biasing force fd by the coil spring 24 and a rightward application by the torsion coil spring 15 are removed as shown in FIG. Due to the force fe, the guide pin 18 moves in the upper right direction along the open position side rotation guiding portion 22a, and as a result, as shown in FIG. 15, the slide valve G ′ is displaced from the closed position to the open position. Thus, the opening operation is completed.
In the present embodiment, the rotation guiding portion of the guide groove 22 is configured by the opening position side rotation guiding portion 22a and the closed position side rotation guiding portion 22b, but the rotation guiding portion may be configured by a uniform one. I do not care. In addition, the lead angles αa and αb of the rotation guide portions 22a and 22b are not uniform and can be appropriately modified, for example, gradually decreasing from the open position side to the close position side.

[Reset means]
Since the gas plug of the present embodiment shuts off the gas supply when a gas g having a flow rate above a certain level flows, as shown in FIG. 15, the gas inflow passage 1A as the specific gas flow passage has an overflow prevention function. An overflow prevention mechanism H having a valve H2 is provided, and a reset means R for performing a reset operation for resetting the overflow prevention valve H2 by movement of the slide valve G ′ between the closed position and the open position. Is provided.
Here, as the configurations of the overflow prevention valve H2 and the reset means R, a configuration obtained by modifying a part of the configuration of the fourth embodiment is employed. Specifically, in the fourth embodiment, an attractive force as a magnetic force is exerted between the first magnetic body R13 and the second magnetic body R2, but in this embodiment, the repulsive force Is demonstrated. For this reason, below, the part which is changing from 4th Embodiment about the said reset means R is mainly demonstrated.
In the present embodiment, the reset means R is movable in the axial direction of the gas flow passage 1 and is capable of pressing the operated member H3 of the excessive outflow prevention mechanism H, the moving member R4 and the slide valve G. Are formed integrally with the slide valve G ′ so as to extend from the upstream end of the slide valve G ′ to the upstream side of the gas flow passage 1. The first magnetic body R13 provided at the tip of the rod-shaped member and the second magnetic body R2 provided in the moving member R4 in a state in which a repulsive force is generated between the first magnetic body R13 and the first magnetic body R13. .
With this configuration, when the slide valve G ′ is in the open position, the excessive flow prevention valve H2 is moved to the operating position, so that the gas flow is blocked (see FIG. 17). With the movement to the closed position (movement from FIG. 17 to FIG. 19), the repulsive force between the first magnetic body R13 and the second magnetic body R2 increases, and the moving member by the first biasing member F1. The force that attracts R4 toward the slide valve G ′ is weakened, and the moving member R4 moves toward the excessive outflow prevention mechanism H. As a result, the seating of the overflow prevention valve H2 on the valve seat portion H6 is released, and the reset operation is performed in such a manner that the overflow prevention valve H2 is returned to the initial position by the urging force of the third urging member F3. Is called.

<Another embodiment>
(1) In the first, second, third, fourth, and fifth embodiments, the central axis in the plurality of flow path portions is the same, and the gas flow passage 1 is provided in a straight line. For example, FIGS. As shown in FIGS. 12, 13, and 14, a linear gas flow passage 1 in which the central axis of the gas flow passage 1 is shifted from the upstream portion to the downstream portion in the flow passage radial direction can be provided. Thus, providing the gas flow passage 1 in a straight line shape along the axial direction of the gas plug body 2 is not limited to a straight line shape as in the above-described embodiment, and is not limited to FIGS. As shown in FIG. 5, the one shifted in the flow path radial direction is also included.
10, 11, 12, 13, and 14, the gas plug main body 2 itself can be provided in a straight line as in the above embodiment, and the gas plug main body 2 can be configured compactly. .

(2) In the sixth embodiment related to the gas plug with knob, the example provided with the reset means R of the embodiment corresponding to FIG. 8 is shown, but not limited to this, it corresponds to FIGS. Even with the reset means R of the embodiment, the object of the present application can be achieved.

(3) In the embodiment described so far, the example in which the outer surface of the slide valve G is seated on the inner surface of the gas flow passage 1 to close the gas flow passage 1 is shown. A member may be provided, and the gas flow passage 1 may be closed in a form in which the slide valve G is seated on the seal member.

(4) In the above embodiment, a foreign matter adheres to the first magnetic body R13 or the second magnetic body R2, and the magnetic force acting between the first magnetic body R13 and the second magnetic body R2 is inhibited by the foreign matter. In order to prevent this, it is preferable to provide a cylindrical member that isolates the space between the first magnetic body R13 and the second magnetic body R2 from the gas flow passage 1. The cylindrical member preferably has stretchability, and is provided in a state of expanding and contracting following the change in the interval even when the interval between the first magnetic body R13 and the second magnetic body R2 varies. .

  According to the gas stopper of the present invention, the reset means for resetting the overflow prevention valve of the overflow prevention mechanism is based on contact between the reset means and another member while realizing the reset means with a relatively simple configuration. It can be effectively used as a gas stopper that can prevent damage to the reset means.

1: Gas flow passage 2: Gas stopper body 2b: Protruding portion G: Slide valve H: Overflow prevention mechanism H2: Overflow prevention valve H3: Operated member (member provided with the operated portion)
DESCRIPTION OF SYMBOLS 100: Gas connection tool 105: Press part P1: First axial center R along the flow path radial direction of a gas flow path R: Reset means R1: First magnetic body R2: Second magnetic body R3: Energizing means R5: Swing member R5a: Operation part R5b: Pressing action part R6: Cylindrical support member R7: Engagement guide groove R7a: Inclined groove R7b: Linear groove R4: Upstream member R4a: Guide surface R4b: Opening part R4c: Pressing action part

Claims (11)

A cylindrical gas stopper body having a gas flow passage formed therein, a slide valve movable in the axial direction of the gas stopper body between a closed position and an open position, and a gas flow direction of the gas flow passage An overflow prevention valve disposed upstream of the slide valve, and disposed between the slide valve and the overflow prevention valve in the gas flow direction, between the closed position and the open position. A gas stopper provided with reset means for performing a reset operation to reset the overflow prevention valve by pressing the operated portion to the upstream side of the gas flow passage by the movement of the slide valve,
The reset means causes the magnetic force generated between the magnetic force generation members to act as the slide valve moves between the closed position and the open position, and operates the magnetic force generation members in a non-contact manner to perform the reset. Gas stopper equipped with non-contact type magnetic force acting means for performing operation. The magnetic force generating member is composed of the slide valve and a swinging member that is swingable about an axis along the flow path radial direction of the gas flow passage,
An urging means for urging the oscillating member on one side of the oscillating direction including an operating position for performing the reset operation on the operated portion in an oscillating range;
The magnetic force application means includes a first magnetic body provided on the slide valve and a second magnetic body provided on the swing member, and is generated between the first magnetic body and the second magnetic body. The gas plug according to claim 1, wherein a repulsive force as a magnetic force is applied to the swing member to swing the swing member against the biasing force of the biasing means. The magnetic force generating member is composed of the slide valve and the operated portion,
The reset means, when the slide valve moves between the closed position and the open position, so that the non-contact operation portion provided in the slide valve is moved closer to and away from the operated portion. A first motion conversion mechanism for converting the movement of the slide valve between the closed position and the open position into the movement of the non-contact operating portion;
The magnetic force application means includes a first magnetic body provided in the non-contact operating portion and a second magnetic body provided in the operated portion, and between the first magnetic body and the second magnetic body. The gas stopper according to claim 1, wherein a repulsive force as a magnetic force generated on the operated part is applied to the operated part, and the reset operation is performed on the operated part in a non-contact state by the non-contact operating part. A first operation position for bringing the non-contact operation part closer to the operated part and performing the reset operation on the operated part in a non-contact state at the non-contact operating part; and The first operation release position for releasing the reset operation away from the operated portion is set at a position different in the circumferential direction around the axis along the gas flow direction of the gas flow path,
The first motion conversion mechanism is a slide movement conversion that moves the non-contact operation unit along the gas flow direction of the gas flow passage when the slide valve moves between the closed position and the open position. The movement of the slide valve is converted into the movement of the non-contact operation part in a form that switches between the state and the rotational motion conversion state in which the non-contact operation part is rotated around the axis along the gas flow direction of the gas flow passage. The gas stopper according to claim 3. A second operation position for bringing the non-contact operation part closer to the operated part and performing the reset operation on the operated part in a non-contact state at the non-contact operating part; and A second operation release position that releases the reset operation away from the operated portion is set to a position that is different in the circumferential direction around the axis along the gas flow direction of the gas flow path,
When the slide valve moves between the closed position and the open position, the first motion conversion mechanism is arranged around the axis along the gas flow direction of the gas flow path from the start of movement to the end of movement. The gas stopper according to claim 3, wherein the movement of the slide valve is converted into the movement of the non-contact operation unit in a form in which the non-contact operation unit is rotated. A support member for supporting the slide valve is provided in the gas flow passage so as to be slidable in a gas flow direction of the gas flow passage;
The first motion conversion mechanism includes an engagement guide groove formed on an outer periphery of the support member, and an engaged portion formed on an inner wall portion of the gas flow passage and engaged with the engagement guide groove. The gas stopper according to claim 4 or 5 provided. The magnetic force generation member is composed of the slide valve and an upstream member that is provided on the upstream side and performs the reset operation.
The magnetic force acting means is composed of a first magnetic body provided on the slide valve and a second magnetic body provided on the upstream member, and between the first magnetic body and the second magnetic body. A state in which an attractive force as a generated magnetic force is applied to the upstream member to switch from a state in which the reset operation is performed to a state in which the reset operation is canceled, or a repulsive force is applied to the upstream member to cancel the reset operation. The gas stopper according to claim 1, wherein the gas stopper is switched to a state where the reset operation is performed. The reset means includes a rotary member that is rotatable about an axis along the gas flow direction of the gas flow passage, and rotational movement of the rotary member between the closed position and the open position. A second motion conversion mechanism that can be converted into
The magnetic force application means includes a first magnetic body provided on the rotating member and a second magnetic body provided on the operated portion, and is generated between the first magnetic body and the second magnetic body. The gas stopper according to claim 1, wherein a repulsive force as a magnetic force is applied to the operated portion, and the reset operation is performed on the operated portion in a non-contact state by the rotating member. .   The said gas flow path is provided with the said excessive outflow prevention valve, the said reset means, and the said slide valve in order from the upstream, and is provided in the linear form along the axial direction of the said gas stopper main body. The gas stopper according to any one of the above.   The gas plug according to any one of claims 1 to 9, wherein the slide valve moves between the closed position and the open position in accordance with mounting and removal of a gas connector on the gas plug body.   The gas stopper according to any one of claims 1 to 9, wherein the slide valve moves between the closed position and the open position in accordance with a pressing operation with respect to an operation unit.

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