JP2014044028A - Gas cock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a push-push type gas cock allowing its downsizing with a relatively simple structure and still having high operability.SOLUTION: Position holding means 18 is provided that engages a first operation member 14 positioned in a recessing position with a second operation member 15 positioned in a protruding position to hold the first operation member 14 in the recessing position. When the second operation member 15 positioned in the protruding position receives a pushing operation, the position holding means 18 releases the engagement of the first operation member 14 with the second operation member 15 to allow movement of the first operation member 14 from the recessing position to the protruding position.

Description

  The present invention relates to a cylindrical gas stopper main body having a gas flow passage formed therein, and between the closed posture and the open posture by sitting on the inner peripheral surface of the gas stopper main body inside the gas flow passage. The present invention relates to a gas stopper provided with a slide valve whose posture is changed.

For example, it is installed in a cabinet provided below the built-in stove, and is operated as a gas stopper that switches between gas supply and stop by opening and closing between the gas inflow path and the gas outflow path, and rotating operation on an operation section such as an operation knob. Accordingly, there is known a so-called rotary gas stopper (for example, see Patent Document 1) that rotates a rotary valve, which is an on-off valve, to open and close between a gas inflow path and a gas outflow path. Yes.
On the other hand, as an open / close valve that switches between gas supply and stop by opening and closing between the gas inflow path and the gas outflow path, a slide valve that is an on / off valve is slid in accordance with a pressing operation on an operation unit such as an operation button. A so-called push-push type gas stopper that opens and closes is known (see, for example, Patent Document 2).
The push-push type gas stopper includes a guide groove member in which a substantially heart-shaped guide groove is formed, and a guide pin that is inserted into the guide groove and slides together with the operation unit. An urging means such as a leaf spring for urging in the axial direction of the pin is provided. In such an on-off valve, when the pressing operation on the operating portion is transmitted to the guide pin, the guide pin moves around along the substantially heart-shaped guide groove, and the guide pin moves around. The slide valve operates to displace between a closed position and an open position.
Such push-push type gas plugs can be switched from an open state to a closed state (hereinafter sometimes referred to as “capping operation”) by simply pressing an operation button with a relatively small force, and closed. Switching operation from the state to the open state (hereinafter sometimes referred to as “opening operation”) can be performed alternately, and it can be operated by sliding when the hand is wet like a rotary type. Since there is no inconvenience such as being impossible, it is preferred by the user over the rotary type.
For this reason, it is desired that the gas stopper provided in the cabinet provided below the built-in stove be configured in such a push-push type.

JP 2007-298224 A Japanese Patent Laid-Open No. 02-154918

As described above, the push-push type gas stopper disclosed in Patent Document 2 is substantially heart-shaped, and is configured such that the guide pin moves around along a complicated shape guide groove having a plurality of locking portions. Therefore, the guide pin may fit in a complicated guide groove and may be difficult to move. In this case, it may be difficult to perform the opening and closing operation, and the operability is not necessarily good. Rather, there was room for improvement.
The present invention has been made in view of the above-described problems, and an object thereof is to provide a push-push type gas stopper that can realize high operability with a relatively simple configuration.

To achieve the above object, the gas stopper of the present invention comprises:
A cylindrical gas stopper main body having a gas flow passage formed therein, and an attitude change between a closed posture and an open posture seated on the inner peripheral surface of the gas stopper main body inside the gas flow passage. A gas stopper equipped with a slide valve, the characteristic configuration of which is
The gas stopper main body is urged in the protruding direction and can be moved to the protruding position, and can be moved back to the retracted position by receiving a pressing operation in the opposite direction of the protruding direction at the protruding position. With operating members,
The slide valve is changed in posture between the closed posture and the open posture in conjunction with movement between the protruding position and the retracted position of the first operating member,
It has a hollow cylinder shape, and includes a second operation member that houses the first operation member in a state in which the pressing operation can be performed from the outside,
The second operation member is configured to be able to project and move to a projecting position biased in the projecting direction with respect to the gas plug body, and to be retractable by receiving the pressing operation at the projecting position,
Position holding means for engaging the first operating member located at the retracted position with the second operating member located at the protruding position to hold the first operating member at the retracted position is provided.
The position holding means releases the engagement between the first operation member and the second operation member when the second operation member located at the protruding position receives the pressing operation, and This is in that the movement of the member from the retracted position to the protruding position is allowed.

According to the above characteristic configuration, the “opening operation” and the “closing operation” between the opening posture and the closing posture of the slide valve are either the pressing operation of the first operating member or the pressing operation of the second operating member. Since it can be realized on the other hand, even if the hand that operates the gas plug is wet and slippery, it is possible to realize a gas plug with high operability that can easily perform “capping operation” and “opening operation” .
According to the above characteristic configuration, the first operation member, the second operation member, and the first operation member that can be individually pressed in one direction from the outside in the “opening operation” and “capping operation” are provided. A simple and highly operable gas stopper can be realized by a relatively simple configuration of a position holding member that holds the two operating members at their retracted positions.

Further features of the gas stopper of the present invention are as follows:
The second operating member is provided with an opening that opens an end on the protruding direction side,
The opening is provided with a flange extending from the edge of the opening to the center side,
The flange is in contact with an end of the first operating member on the protruding direction side to hold the first operating member at a protruding position.

  According to the above characteristic configuration, the pressing operation of the first operating member can be executed from the opening that opens the end of the protruding direction side of the second operating member. And even if it is a case where pressing operation to the 1st operation member is canceled by providing the collar part extended from the edge of the opening to the center side, the 1st operation member urged to the above-mentioned projection direction side is Jumping out from the inside of the second operating member to the outside can be prevented, and the first operating member can be appropriately held at the protruding position.

Further features of the gas stopper of the present invention are as follows:
A lid member that closes the opening of the second operating member is provided between the flange and the end of the first operating member on the protruding direction side,
Between the lid member and the end of the first operating member on the protruding direction side, an urging means for urging the lid member toward the protruding direction side is provided,
The lid member is capable of performing the pressing operation together with the first operating member, and in a natural state where the pressing operation is not performed, the lid member is in contact with the collar portion to close the opening.

  According to the above characteristic configuration, the hollow cylindrical second operation member is closed by the lid member in a state where the lid member is not pressed, so that, for example, the second operation member from the opening portion 2 It is possible to prevent dust and the like from entering the inside of the operation member, and to prevent the dust from being caught between the first operation member and the second operation member and becoming inoperable. .

Further features of the gas stopper of the present invention are as follows:
The second operating member is provided with a lock mechanism that prevents the pressing operation to the second operating member in the locked state and allows the pressing operation to the second operating member in the unlocked state. It is in.

According to the above characteristic configuration, since the lock mechanism that prevents the pressing operation to the second operation member in the locked state is provided, it is possible to prevent the second operation member from being unintentionally pressed.
For example, the engagement between the second operation member and the first operation member is released by the pressing operation of the second operation member, and the slide valve is moved along with the movement of the first operation member from the retracted position to the protruding position. In the case where the posture is changed from the closed posture to the open posture, it is possible to prevent the gas flow passage from being accidentally opened, thereby improving safety.

Further features of the gas stopper of the present invention are as follows:
The lock mechanism urges the L-shaped member pivotally supported by the gas plug body at a pivot point provided at the bent portion and the swinging direction around the pivot point in one direction. The biasing member,
The L-shaped member is operated to receive a swinging operation for swinging itself to the other side in the swinging direction against an urging force of the urging member at one end portion across the pivot point. A portion is provided, and the other end is not subjected to the swinging operation at the operated portion, and is engaged with the second operation member to perform the pressing operation to the second operation member. This is in that a blocking site capable of blocking is provided.

According to the above characteristic configuration, the lock mechanism can be configured with a relatively small number of parts including the L-shaped member and the urging member, so that the size reduction can be achieved.
Further, since the lock mechanism can be switched between the locked state and the unlocked state by operating the operated part, the switching can be easily performed.

Further features of the gas stopper of the present invention are as follows:
The lock mechanism is configured to slide along the cam groove provided in either the second operation member or the gas stopper main body and the cam groove fitted in the cam groove. In addition, the second operation member or the gas stopper main body is provided with a contact provided on the other side.

  According to the above characteristic configuration, the lock mechanism is constituted by a cam mechanism including a cam groove and a contact that slides along the cam groove in a state of being fitted in the cam groove. The lock mechanism can be realized with a relatively simple configuration.

Further features of the gas stopper of the present invention are as follows:
The gas flow passage is provided with a slide valve housing portion in which the slide valve is freely changeable between the closed posture and the open posture.
A gas inflow path through which gas flows in and a gas outflow path through which gas flows out are connected to the slide valve housing portion in a state where their axis centers are orthogonal to each other.

  According to the above characteristic configuration, for example, in the configuration in which the gas stopper is provided in the cabinet provided below the built-in stove, the gas inflow path extending from the rear to the front of the cabinet is extended upward via the slide valve storage portion. The structure connected to the outflow path can be adopted, and the gas outflow path can be satisfactorily connected to the built-in stove.

Sectional drawing which shows closing operation of the gas stopper which concerns on 1st Embodiment Partially enlarged sectional view showing the opening operation of the gas stopper according to the first embodiment Sectional drawing which shows the opening operation | movement of the gas stopper which concerns on 2nd Embodiment Partially enlarged sectional view showing the closing operation of the gas stopper according to the second embodiment Partially exploded perspective view of a gas stopper provided with a lock mechanism according to another embodiment Sectional drawing corresponding to FIG. 2 which shows the opening operation | movement of the gas stopper at the time of providing the locking mechanism shown in FIG. FIG. 5 is a development view of the cam mechanism which is the lock mechanism shown in FIG. The perspective view which shows the example which provided the gas stopper in the cabinet below the built-in stove

The gas stopper 100 of the present invention is a push-push type gas stopper that has a relatively simple structure and can be made compact but has high operability. For example, as shown in FIG. It is configured so as to be installable in a cabinet 51 provided in the above, and is provided as a so-called main plug in order to supply and shut off gas supply to the built-in stove 50. As can be seen from the figure, a sufficiently large storage space can be secured inside the cabinet 51.
Although details of the gas stopper 100 will be described later, in the installation example shown in FIG. 8, the gas stopper 100 is disposed inside a housing 52 provided in the cabinet 51 from the viewpoint of aesthetics and safety. An opening / closing lid 53 is provided on the front surface of the housing case 52. In the installation example shown in FIG. 8, an example in which the opening / closing lid 53 is closed is shown. However, when the gas stopper 100 is operated, the opening / closing lid 53 is opened. The opening / closing lid 53 is provided with an opening 53a so that the opened / closed state of the gas stopper 100 inside thereof can be visually recognized.

<First Embodiment>
As shown in FIG. 1, the gas stopper 100 of the present invention includes a gas stopper body 11 in which a gas flow passage 10 through which city gas g can flow is formed, and a gas stopper in the gas flow passage 10. A slide valve 12 is provided that changes its position between a closed position (position shown in FIG. 1B) and an open position (position shown in FIG. 1A) seated on the inner peripheral surface of the main body 11.
The gas flow passage 10 formed in the gas plug body 11 has a gas inflow whose axial center (a straight line along the arrow X in FIG. 1) is along the moving direction between the closed posture and the open posture of the slide valve 12. A gas outflow passage 10b that intersects with the passage 10a, its axis (a straight line along arrow Y in FIG. 1) orthogonal to the axis of the gas inflow passage 10a, and the gas inflow passage 10a and the gas outflow passage 10b. At the connection site, the slide valve 12 is constituted by a slide valve storage portion 10c in which the posture can be freely changed between a closed posture and an open posture. The slide valve 12 is linearly movable in a direction along the axis of the gas inflow passage 10.

[First and second operation members]
In the gas stopper 100 of the present invention, the slide valve 12 is closed between the closed posture (the posture shown in FIG. 1B) and the open posture (the posture shown in FIG. 1A) by an external pressing operation. In order to change, a mechanism for operating the slide valve 12 is provided.
The gas stopper body 11 has a protruding direction (FIG. 1) away from the gas stopper body 11 in a direction along the direction of movement between the closing position and the opening position of the slide valve 12 (direction along the arrow X in FIG. 1). 2 is urged by the first coil spring S1 in the direction indicated by the arrow X in FIG. 1 and can project and move to the projecting position (the position shown in FIG. 1A). The cylinder-shaped first operation member 14 is provided that can be retracted to the retracted position (the position illustrated in FIG. 1B) by accepting the operation indicated by the arrow F1 in b). That is, the first coil spring S1 biases the first operation member 14 toward the gas plug body 11 in the protruding direction.
The first operating member 14 is connected to the slide valve 12 by a connecting rod 13, and the slide valve 12 opens and closes in conjunction with the movement of the first operating member 14 between the protruding position and the retracted position. The posture is changed between the postures.
In this embodiment, when the first operating member 14 is located at the protruding position, the slide valve 12 is in the open posture, and when the first operating member 14 is located at the retracted position, the slide valve 12 is in the closed posture. It becomes.

The first operating member 14 has a hollow cylindrical second operating member 15 whose outer peripheral surface is slidable along the inner peripheral surface of the second operating member 15 and is opposite to the protruding direction from the outside. (The direction opposite to the direction indicated by the arrow X in FIGS. 1 and 2 is the direction toward the left side of the figure).
The second operating member 15, like the first operating member 14, is a protruding position urged by the second coil spring S <b> 2 in the protruding direction (indicated by the arrow X in FIGS. 1 and 2) away from the gas plug body 11. In addition, it is configured such that it can be retreated by receiving a pressing operation (operation indicated by an arrow F1 in FIG. 2B) at the protruding position. That is, the second coil spring S2 biases the first operating member 14 in the second operating member 5 in the protruding direction from the gas plug body 11.
When the description is added, the second operation member 15 is connected to the gas plug main body 11 at the end on the gas plug main body 11 side by the second coil spring S2, and is provided with an annular recess provided in the gas plug main body 11. It is configured to be slidable along the inner peripheral surface of the annular recess 16 in a state of being fitted into the insert 16. With this configuration, the second operating member 15 does not detach from the gas stopper main body 11 and moves along the movement direction (the direction along the arrow X in FIG. 1) between the closing posture and the opening posture of the slide valve 12. , Move freely.

An opening 15a is provided to open the end of the second operating member 15 on the protruding direction side (indicated by the arrow X in FIG. 1), and the second operating member 15 is provided through the opening 15a. The pressing operation of the arranged first operating member 14 is executed.
Further, the opening 15a is provided with a flange 15b extending from the edge of the opening 15a toward the center thereof. The flange 15b is in contact with the end of the first operating member 14 that is biased toward the protruding direction (the arrow X side in FIG. 1), and the first operating member 14 is in the protruding position. The position is held at the position shown in FIG.

(Position holding means)
In order to maintain the slide valve 12 in the closed posture (the posture shown in FIG. 1B), the first operating member 14 needs to be held at the retracted position.
Therefore, the first operation member 14 is provided with a first recessed portion 14a at a portion that slides with respect to the inner surface of the second operation member 15 on the outer surface of the first operation member 14, and at the inner surface of the second operation member 15. The second recessed portion 15c is provided in a portion that slides with respect to the outer peripheral surface of the first operating member 14.
As shown in FIG. 1B, the first recess 14a and the second recess 15c have the first operating member 14 positioned at the retracted position and the second operating member 15 positioned at the protruding position. In the state, the first operating member 14 is provided so as to face in the moving direction (the direction along the arrow X in FIG. 1).
And while being fixed to the said 2nd recessed part 15c, the 1st recessed part 14a and the 2nd recessed part 15c oppose in the moving direction (direction along arrow X in FIG. 1) of the 1st operation member 14. The position holding member 18 (position holding) made of an elastic material or the like that holds the first operating member 14 in the retracted position in a form that fits in both the first recessed portion 14a and the second recessed portion 15c. An example of means) is provided. Specifically, the position holding member 18 is composed of an O-ring.
When the position holding member 18 is fitted into both the first recessed portion 14a and the second recessed portion 15c, the first operating member 14 is held at the retracted position, and the first operating member is retained. The slide valve 12 that moves in conjunction with 14 is also maintained in the closed position.
On the other hand, as shown in FIG. 2B, the position holding member 18 is detached from the first recess 14a of the first operation member 14 when the second operation member 15 located at the protruding position is pressed. Release the position holding of the first operating member 14 to the retracted position. As a result, the first operating member 14 moves from the retracted position to the protruding position, and the slide valve 12 changes its posture from the closed posture to the open posture.

[Lock mechanism]
In the first embodiment, as shown in FIG. 2, the second operating member 15 is unintentionally pressed and the slide valve 12 is closed from the closed position (the position shown in FIG. 2A) to the open position (FIG. 2). In order to prevent the posture from being changed to the posture shown in FIG. 2C, the pressing operation to the second operating member 15 is prevented in the locked state (the state shown in FIG. 2A), and the unlocked state (FIG. In the state shown in FIG. 2 (b), a lock mechanism that allows the pressing operation to the second operation member 15 is provided.
As shown in FIGS. 1 and 2, the lock mechanism includes an L-shaped member 20 pivotally supported by the gas stopper main body 11 at a pivotal support point 20a provided at the bent portion, and the L-shaped member 20 pivoted. It comprises a third coil spring S3 (an example of a biasing member) that biases in one direction of swinging around 20a (clockwise around the pivot point 20a in FIGS. 1 and 2). The third coil spring S3 urges the L-shaped member 20 from the outer peripheral surface of the gas plug main body 11 to the rocking side end positioned on the outer diameter side of the L-shaped member 20, and locks positioned on the inner diameter side. The side end is urged downward.
When the explanation is added, the L-shaped member 20 is rocked at one end with the pivot point 20a interposed therebetween so as to rock itself in the other direction of rocking against the urging force of the third coil spring S3. In a state where an operated part 20b for receiving a moving operation is provided and a swinging operation (operation indicated by an arrow F2 in FIG. 2B) is received at the operated part 20b at the other end. A blocking portion 20c that can engage with the second operating member 15 and block the pressing operation to the second operating member 15 is provided.
That is, in a state where the operated portion 20b of the L-shaped member 20 accepts the swing operation (unlocked state), the pressing operation to the second operation member 15 is possible and the swing operation is not accepted In the (locked state), the second operation member 15 is configured so as not to be pressed.

[Pressing operation to the first operating member]
A pressing operation on the first operating member 14 will be described with reference to FIG.
In the valve open state shown in FIG. 1A, both the first operating member 14 and the second operating member 15 protrude in the protruding direction (the direction indicated by the arrow X in FIG. 1A). Located in. At this time, the slide valve 12 connected to the first operating member 14 is in an open posture, and the gas flow passage 10 is open.

  In the transition process from FIG. 1A to FIG. 1B, when the first operating member 14 receives a pressing operation, the first operating member 14 moves from the protruding position to the retracted position. At this time, the slide valve 12 connected to the first operating member 14 changes its posture from the open posture to the closed posture.

In the valve-closed state shown in FIG. 1B, the first operation is performed by the first recess 14a of the first operating member 14 in the retracted position and the second recess 15c of the second operating member 15 in the protruding position. In a state of facing in the moving direction of the member 14 (the direction along the arrow X in FIG. 1), the position holding member 18 is fitted into both of them, and the first operating member 14 is held at the retracted position.
At this time, the slide valve 12 connected to the first operating member 14 is in a closed position, and the gas flow passage 10 is closed.

[Pressing operation to the second operating member]
Next, the pressing operation on the second operating member 15 will be described with reference to FIG. In FIG. 2, since the configuration of the lock mechanism and the like is illustrated in an enlarged manner, the movement of the slide valve 12 is omitted.
In the transition process from FIG. 2A to FIG. 2B, the operated portion 20b of the L-shaped member 20 that is the locking mechanism performs a swing operation (the operation indicated by the arrow F2 in FIG. 2B). When receiving and shifting the lock mechanism to the unlocked state, the second operating member 15 receives a pressing operation (the operation indicated by the arrow F1 in FIG. 2B), and the second operating member 15 is moved from the protruding position. By moving to the retracted position, the position holding member 18 is detached from the first recess 14a, and the position holding of the first operating member 14 at the retracted position is released.
At this time, the slide valve 12 connected to the first operation member 14 changes its posture from the closed posture to the open posture.

In the valve open state shown in FIG. 2C similar to FIG. 1A, the first operating member 14 is urged in the protruding direction by the first coil spring S1, and the protruding direction side of the second operating member 15 (FIG. 2 is in contact with the flange 15b provided at the end of the arrow X) and is located at the protruding position. The second operating member 15 is positioned at the protruding position with the second coil spring S2 having a natural length.
At this time, the slide valve 12 connected to the first operating member 14 is in the open posture, and the gas flow passage 10 is open.

Second Embodiment
In the second embodiment, as compared with the first embodiment, the opening 15a of the second operation member 15 can be sealed, and the slide valve 12 has a protrusion position and a retraction position of the first operation member 14. The difference between the closed posture and the open posture is that the relationship between the closed posture and the open posture is not provided, and the lock mechanism is not provided, and there is no change in other configurations.
Therefore, in the following, these points will be described, and other configurations will be denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.

In this embodiment, as shown in FIGS. 3 and 4, the flange portion 15 b of the second operating member 15 and the end portion of the first operating member 14 on the protruding direction side (indicated by the arrow X in FIGS. 3 and 4) In between, the cover member 30 which closes the opening part 15a of the 2nd operation member 15 is provided.
Between the said cover member 30 and the edge part of the protrusion direction side (arrow X arrow side in FIG. 3, 4) of the 1st operation member 14, the cover member 30 is urged | biased to the protrusion direction side. A coil spring S5 is provided. Thereby, the lid member 30 abuts on the flange portion 15b of the second operation member 15 and closes the opening portion 15a in a state where no pressing operation is received from the outside (the state shown in FIG. 3A).
That is, according to this configuration, the first operation member 14 and the lid member 30 are moved to the retraction direction side (the side opposite to the arrow X in FIGS. 3 and 4) by the pressing operation, and the first operation member After 14 is held at the retracted position by the position holding member 18, it is urged in the protruding direction by the fifth coil spring S5 to close the opening 15a.
The lid member 30 is made of a transparent or translucent material, and even when the operator closes the opening 15a, the first operating member 14 is in the protruding position. Alternatively, it is configured so that the user can visually know where the retirement position is.

  The first operating member 14 is urged toward the projecting direction (the arrow X side in FIG. 3A) by the first coil spring S1, and the projecting direction side is actuated by the fourth coil spring S4 via the slide valve 12. The first operating member 14 is urged toward the retraction direction side (opposite to the arrow X in FIG. 3A) by the fifth coil spring S5. ), The biasing force toward the retraction direction side by the fifth coil spring S5 is set to be smaller than the sum of the biasing forces toward the protruding direction side of the first coil spring S1 and the fourth coil spring S4. Therefore, the total force biased by the first operating member 14 is directed to the protruding direction side. As a result, when the position of the first operating member 14 is not held by the position holding member 18, the first operating member 14 is positioned at the protruding position by the flange 15b of the second operating member 15 with the lid member 30 and the fifth coil spring S5 interposed therebetween. Will be.

[Pressing operation to the first operating member and the lid member]
Next, in the second embodiment, a pressing operation on the first operation member 14 and the lid member 30 will be described.
In the valve-closed state shown in FIG. 3A, both the first operating member 14 and the second operating member 15 protrude in the protruding direction side (indicated by the arrow X in FIG. 3A). Located in position. Here, the lid member 30 is urged toward the protruding direction, abuts against the flange portion 15b of the second operation member 15, and closes the opening portion 15a.
At this time, the slide valve 12 connected to the first operating member 14 is in a closed posture, and the gas flow passage 10 is closed.

In the process of transition from FIG. 3A to FIG. 3B accompanying the valve opening operation, the lid member 30 receives a pressing operation (the operation indicated by the arrow F1 in FIG. 3), whereby the fifth coil spring is combined with the lid member 30. S5 and the first operating member 14 move from the protruding position (the position shown in FIG. 3A) to the retracted position (the position shown in FIG. 3B).
At this time, the slide valve 12 connected to the first operation member 14 changes its posture from the closed posture to the open posture.

The valve open state shown in FIG. 3B is a state immediately after the pressing operation is completed from the outside. In this state, the first recessed portion 14a of the first operating member 14 in the retracted position and the protruding position are located. In a state where the second recess 15c of a certain second operating member 15 faces in the moving direction of the first operating member 14 (the direction along the straight line X in FIG. 3), the position holding member 18 is fitted into both of them. The first operating member 14 is held in the retracted position.
At this time, the slide valve 12 connected to the first operating member 14 is in the open posture, and the gas flow passage 10 is open.

In the state shown in FIG. 3B, when the external pressing force (the force indicated by the arrow F1 in FIG. 3B) is released, the lid member 30 is moved in the protruding direction side (the arrow on FIG. 3B). Is biased to the side indicated by the arrow X, contacts the flange 15b of the second operating member 15, and the opening 15a is closed.
At this time, the slide valve 12 connected to the first operating member 14 is in the open posture, and the gas flow passage 10 is open.

[Pressing operation to the second operating member]
In the second embodiment, the pressing operation to the second operating member 15 is shown in the transition process shown in FIG. 4A to FIG. 4C, but the transition process is substantially the first. Since it is the same as the transition process shown in FIG. 2A to FIG. 2C of one embodiment, the detailed description thereof is omitted here.

[Another embodiment]
(1) In the first embodiment, an example in which the lock mechanism is configured by the L-shaped member 20 and the third coil spring S3 has been described. However, the lock mechanism is not intended to be pressed against the second operation member 15. Any configuration can be adopted as long as it has a function of preventing operation.
For example, as shown in FIGS. 5, 6, and 7, the locking mechanism includes a cam groove 31 formed in the annular recess 16 on the protruding direction side (indicated by the arrow X in FIG. 5) of the gas stopper main body 11, A contact that protrudes from the inner peripheral surface of the second operating member 15 toward the cylinder axis of the second operating member 15 on the inner peripheral surface of the second operating member 15 in the retraction direction side (opposite the arrow X direction in FIG. 5). 15 d is configured to be slidable along the cam groove 31 in a state where the contact 15 d is fitted in the cam groove 31.
As shown in FIG. 7, the cam groove 31 is provided with a protruding direction side corner 31 on the protruding direction side (indicated by the arrow X in FIG. 7). A protrusion direction side locking portion 31d is provided on the retraction direction side from the protrusion direction side corner portion 31 (the direction opposite to the arrow X in FIG. 7), and the protrusion direction side corner portion 31 is retracted. On the rotation direction side orthogonal to the direction side (in the direction opposite to the arrow Z in FIG. 7), there is provided an inclined portion 31b extending in a state of being gradually inclined from the rotation direction to the retraction direction. A retreat position side groove 31c is provided at the end of the inclined portion 31b.

  And the 2nd operation member 15 and the gas stopper main body 11 are connected with 2nd coil spring S2, and the 2nd operation member 15 is urged | biased in the protrusion direction by the said 2nd coil spring S2 (in FIG. 7). fx) and a biasing force in the rotation direction (fy in FIG. 7) are working.

[Pressing operation to the second operating member]
Since the another embodiment relates to a locking mechanism for the second operation member 15, a pressing operation for the second operation member 15 will be described with reference to FIGS.

As shown in FIG. 6A, when the second operating member 15 is not pressed, the first operating member 14 is in the retracted position, and the second operating member 15 is in the protruding position, the contactor As shown in FIG. 7A, 15 d is located at the protruding direction side corner 31 a of the cam groove 31.
When the pressing operation (the operation indicated by the arrow F1 in FIG. 6A) is applied to the second operating member 15 in the state shown in FIG. 6A, the contact 15d is as shown in FIG. 7B. The second operating member 15 is prevented from moving from the protruding position to the retracted position because it is fitted in the protruding direction side locking portion 31d of the cam groove 31.
That is, the contact 15d and the cam groove 31 provide a lock function that prevents the slide valve 12 from changing its position from the closed position to the open position.

On the other hand, in the state shown in FIG. 6A, the second operation member 15 is rotated by a force against the urging force in the rotational direction by the second coil spring S2 (the operation indicated by the arrow F3 in FIG. 6B). When the pressing operation (the operation indicated by the arrow F1 in FIG. 6B) is applied, the contact 15d is formed on the inclined portion of the cam groove 31 as shown in FIGS. 7C and 7D. The cam groove 31 moves along the retraction position side groove 31c along 31b.
That is, the lock function by the contact 15d and the cam groove 31 can be released by applying a pressing operation to the second operation member 15 located at the protruding position while performing a rotation operation, and the slide valve 12 is closed. The posture change from open to open is allowed.

  In addition, in the said another embodiment, although the contact 15d was provided in the 2nd operation member 15 side and the cam groove 31 was provided in the gas stopper main body 11 side, the side of the 2nd operation member 15 was shown separately. Alternatively, the cam groove 31 may be provided, and the contact 15d may be provided on the gas plug body 11 side.

(2) In the above-described embodiment, the gas inflow path 10a and the gas outflow path 10b are connected in a state in which the axes are orthogonal to each other, but the axes are not orthogonal to each other. For example, it may be configured to be connected at an acute angle.

  The gas stopper of the present invention can be effectively used as a push-push type gas stopper with high operability while achieving compactness with a relatively simple configuration.

DESCRIPTION OF SYMBOLS 10: Gas flow path 10a: Gas inflow path 10b: Gas outflow path 10c: Slide valve accommodating part 11: Gas stopper main body 12: Slide valve 14: 1st operation member 15: 2nd operation member 15a: Opening part 15b: collar part 15d: contact 18: position holding member 20: L-shaped member 20a: pivot point 20b: operated part 20c: blocking part 30: lid member 31: cam groove 100: gas stopper

Claims (7)

A cylindrical gas stopper main body having a gas flow passage formed therein, and an attitude change between a closed posture and an open posture seated on the inner peripheral surface of the gas stopper main body inside the gas flow passage. A gas stopper with a slide valve,
The gas stopper main body is urged in the protruding direction and can be moved to the protruding position, and can be moved back to the retracted position by receiving a pressing operation in the opposite direction of the protruding direction at the protruding position. With operating members,
The slide valve is changed in posture between the closed posture and the open posture in conjunction with movement between the protruding position and the retracted position of the first operating member,
It has a hollow cylinder shape, and includes a second operation member that houses the first operation member in a state in which the pressing operation can be performed from the outside,
The second operation member is configured to be able to project and move to a projecting position biased in the projecting direction with respect to the gas plug body, and to be retractable by receiving the pressing operation at the projecting position,
Position holding means for engaging the first operating member located at the retracted position with the second operating member located at the protruding position to hold the first operating member at the retracted position is provided.
The position holding means releases the engagement between the first operation member and the second operation member when the second operation member located at the protruding position receives the pressing operation, and A gas stopper that allows movement of a member from a retracted position to a protruding position. The second operating member is provided with an opening that opens an end on the protruding direction side,
The opening is provided with a flange extending from the edge of the opening to the center side,
2. The gas stopper according to claim 1, wherein the flange portion is in contact with an end portion of the first operation member on the protruding direction side and holds the first operation member at a protruding position. A lid member that closes the opening of the second operating member is provided between the flange and the end of the first operating member on the protruding direction side,
Between the lid member and the end of the first operating member on the protruding direction side, an urging means for urging the lid member toward the protruding direction side is provided,
The gas according to claim 2, wherein the lid member is capable of the pressing operation together with the first operating member, and closes the opening by contacting the collar portion in a natural state where the pressing operation is not performed. plug.   The second operating member is provided with a lock mechanism that prevents the pressing operation to the second operating member in the locked state and allows the pressing operation to the second operating member in the unlocked state. Item 4. The gas plug according to any one of Items 1 to 3. The lock mechanism urges the L-shaped member pivotally supported by the gas plug body at a pivot point provided at the bent portion and the swinging direction around the pivot point in one direction. The biasing member,
The L-shaped member is operated to receive a swinging operation for swinging itself to the other side in the swinging direction against an urging force of the urging member at one end portion across the pivot point. A portion is provided, and the other end is not subjected to the swinging operation at the operated portion, and is engaged with the second operation member to perform the pressing operation to the second operation member. The gas stopper according to claim 4, wherein a blocking site capable of blocking is provided.   The lock mechanism is configured to slide along the cam groove provided in either the second operation member or the gas stopper main body and the cam groove fitted in the cam groove. The gas plug according to claim 4, further comprising a contact provided on either the second operation member or the gas plug main body. The gas flow passage is provided with a slide valve housing portion in which the slide valve is freely changeable between the closed posture and the open posture.
The gas inflow path into which the gas flows in and the gas outflow path from which the gas flows out are connected to the slide valve housing portion in a state in which the axis centers thereof are orthogonal to each other. Gas stopper as described.

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