JP3217178B2 - Gas tap socket removal mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas plug socket removing mechanism.

[0002]

2. Description of the Related Art A one-touch coupling type comprising a socket and a plug has become widespread as a rubber tube connector. Recently, the plug is used as a hose end of a gas stopper. As a gas stopper of this type, for example,
As shown in FIG. 6, the hose end portion (4) is housed so as to be movable in the axial direction and is urged toward the distal end side of the hose end portion (4) by a spring (23) to be held in a closed state. In this case, a socket (3) connected to the hose end portion (4) has an operating cylinder (32) that can move forward and backward at the distal end thereof. It has a shaft (31) corresponding to the direct acting valve.

In this prior art, when the socket (3) is not mounted on the hose end (4), the direct acting valve blocks the flow path in the gas plug as shown in FIG. When the socket (3) is connected to the hose end (4), the operating cylinder (32) is advanced forward by the biasing force of the spring, as shown in FIG. As a result, the locking mechanism in the socket (3) operates to couple the socket (3) and the hose end portion (4) in a retaining state, and the direct acting valve is pushed in by the shaft body (31) so that the gas is released. The flow paths in the stopper will communicate. In this state, when the operating cylinder (32) is forcibly pushed in by a predetermined amount, the locked state of the socket (3) and the hose end (4) is released, whereby the socket (3) is removed and the direct-acting valve is disconnected. Returns to the above-mentioned valve-closed state because the urging force in the valve-closing direction is acting.

[0004] Usually, appliances such as stoves are sockets in which a rubber tube is attached to a gas stopper of the above-mentioned type embedded in a wall surface.
Used by connecting (3). Therefore, if the rubber tube is caught with your feet while using the device,
External force acts on (3) in the direction of removing it from the hose end (4), but since the external force does not act on the working cylinder (32) at all, the socket (3) is connected to the hose end (4).
The device does not come off from (4), and all the external force acts on the device, and the device may fall down.

The present invention provides a gas plug having such a hose end portion (4) for connecting a socket (3) and a direct acting valve urged in a normally closed direction by a spring (23). So,
When the socket (3) is connected to the hose end (4), the working cylinder (32) inserted in the front end of the socket (3) so as to be able to advance and retreat is advanced and the socket (31) of the socket (3) is moved by the shaft (31). When the direct acting valve is pushed in and opened, and when the operating cylinder (32) is pushed in by a predetermined amount, the socket (3) is removed from the hose end portion (4), whereby the gas which returns the direct acting valve to the closed state is obtained. plug"
It is an object of the present invention to prevent a device from falling down even when a rubber tube is hooked with a foot during use.

[0006]

[Technical Means] The technical means of the present invention taken to solve the above-mentioned problem is that "a hose end part (4) is provided in the outlet cylinder part (10) of the gas stopper main body (1) so as to be able to protrude and retract, and The hose end (4) is urged in the pushing direction by the spring (43),
The urging force of the spring (43) is set to be larger than the urging force of the spring (23), and the engaging pin (42) protruding from the base end of the hose end (4) is connected to the outlet cylinder (10). ), And a push-in piece (51) is disposed near the base end of the hose end (4) so as to face the operating cylinder (32), and the input end is further connected to the hose end (4). ) Is provided with a two-bar mechanism (A) that is set so that the output end moves in the same direction by an amount larger than the amount of movement when the input end is moved to the front end side, and the input end is connected to an engagement pin (42). The output end serves as the pushing piece (51), and the engaging pin (42)
The movement of the pushing piece (51) with respect to the hose end portion (4) by the movement of the hose allows the working cylinder (32) in the connected state to be pushed in by a predetermined amount. "

[0007]

The above technical means of the present invention operates as follows. When the socket (3) is not connected to the hose end (4), the direct acting valve built in the gas stopper is kept closed by the spring (23). When the instrument is used, when the socket (3) is connected to the hose end (4), the working cylinder (32) at the distal end of the socket (3) is advanced and locked, and linearly moved by the shaft (31). The valve is pushed in and opened. At this time, the hose end part (4) is pushed into the outlet cylinder part (10) of the gas stopper body (1) by the spring (43), and the urging force of the spring (43) is ) Is set to be larger than the urging force, the base end side of the hose end portion (4) is kept in contact with the gas cock main body (1) side. At this time, the operating cylinder (32) and the pushing piece (51) are in a state of being in contact with each other.

To remove the socket (3) from the hose end (4), the socket (3) is forcibly pulled. As a result, the hose end portion (4) moves to the distal end side, and the engaging pin (42) projecting from the base end side of the hose end portion (4) to the outside of the outlet tube portion (10) also. , Move in the same direction. Therefore, the two-bar linkage connected to this
The input end of (A) moves to the tip end of the hose end (4). The moving direction of the output end of the two-link mechanism (A) is set in the same direction as that of the input end, and the amount of movement is set larger than that of the input end.
With the movement of (42), the pushing piece (51) as the output end
(32) Push in the specified amount, and socket (3)
As a result, the direct acting valve returns to the above-described closed state.

[0009]

According to the present invention having the above-described configuration, the present invention has the following specific effects. When using the device, if the socket (3) is forcibly pulled from the hose end (4), the socket (3) will come off the hose end (4), and the rubber tube connected to the socket (3) will be disconnected. Even if tension is applied to the rubber tube, as in the case where the device is hooked with a foot, the device will not fall down. [Regarding the invention of claim 2] The invention of claim 2 is the invention according to claim 1, wherein the stopper is built in the gas stopper body (1).
(2) is integrated with the direct-acting valve to open and close synchronously.In this case, even if the gas plug is mounted in a recessed and narrow space, the connection and disconnection of the socket (3) and the gas Since the operation of opening and closing the stopper can be performed, restrictions on the installation conditions of the gas stopper are greatly reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In this embodiment, the present invention is applied to a gas stopper having a built-in sliding stopper. In this apparatus, as shown in FIG. 1, a gas stopper main body (1) has a valve body (14) containing the stopper and a tubular main body (15) serving as a gas inlet (12) connected continuously. The gas stopper body (1) has an inverted L extending from the gas inlet (12) to the downstream end opening of the valve chamber (14).
A U-shaped channel is formed. An outlet tube (10) is connected to the downstream end of the valve chamber (14).

A plug (2) is slidably inserted into the valve chamber (14) as shown in FIG.
A spring (23) for applying a valve closing urging force is interposed between the upstream end bottom wall (17) and the inner wall (17). The outlet cylinder
As shown in FIGS. 2 and 3, a cylindrical body (11) connected to the valve chamber (14) is provided concentrically in the (10), and the cylindrical body (11) and the outlet cylindrical section are provided. Between (10), a large-diameter cylindrical portion (41) continuously connected to the base end side of the hose end portion (4) is movably accommodated in the axial direction, and the base of the large-diameter cylindrical portion (41) is accommodated. End flange (40) and outlet tube (10)
A spring (43) for applying a pushing urging force is interposed between the front end and the flange portion at the front end. The urging force of the spring (43) is set to be larger than the urging force of the spring (23).

The hose end portion (4) is formed integrally with the large-diameter cylindrical portion (41), and has a structure in which the diameter is gradually increased from the distal end portion to the proximal end portion as a whole,
A valve seat (44) is formed on the inner peripheral wall of the tip. or,
At the downstream end of the shaft (21) provided in the stopper (2),
Auxiliary valve (22) is connected, and this plug (2) and auxiliary valve (22)
Function as a direct acting valve. That is, the auxiliary valve (22) is
At the point of contact with (44), the stopper (2) is located at the valve closing position in the valve chamber (14) and shuts off the gas flow path. Further, from the base flange (40), the engagement pins (42) and (42) are protruded to the outside through the elongated holes (101) and (101) of the outlet cylinder (10).

A two-joint link mechanism (A) comprising a first lever (6) and a second lever (5) is provided above the outlet cylinder (10).
The input end of the first lever (6) is connected to the engaging pin (42), and the output end of the second lever (5) becomes a pushing piece (51). ) Is the working cylinder inserted into the socket (3) connected to the hose end (4) so that it can move forward and backward.
Corresponds to (32).

The first lever (6) has a pair of lever plates (6
a) (6b), and each lever plate has a notch hole (61) at its lower end.
And an engaging pin (42) is fitted into this, and a connecting shaft (63) described later penetrates between the other ends. The second lever (5) is provided with arm plates (5a) (5) on both sides of the pushing piece (51).
b) are connected, and a long hole is provided at the end of the arm plate (5a) (5b).
(53) and (53) are formed, and the connecting shaft (63) is penetrated therethrough. The initial posture is set so that the lower end of the pushing piece (51) is located at the base end of the hose end (4). The lower end of the pushing piece (5) has an arc-shaped notch (510).
The arc-shaped notch (510) is concentric with the hose end (4) in the initial posture.

The first lever (6) and the second lever (5)
A first fulcrum shaft (62) and a second fulcrum shaft (62) provided between bearing plates (102) (102) provided in parallel with the cross section of the flow path in the upper region of the outlet cylindrical portion (10). 52). That is, the first fulcrum shaft (62) is provided at the lower center portion of the bearing plate (102) (102).
And a second upper portion on the downstream side of the first fulcrum shaft (62).
A fulcrum shaft (52) is arranged, and is supported by the second fulcrum shaft (52) inside the lever plates (6a) and (6b) of the first lever (6) supported by the first fulcrum shaft (62). A second lever (5) is provided. Since the connecting shaft (63) installed between the upper ends of the lever plates (6a) and (6b) passes through the elongated holes (53) and (53), the first
The lever (6) and the second lever (5) are interlocked.

In this embodiment, the distance (L ₁ ) from the engagement pin (42) to the first fulcrum shaft (62) and the distance (L ₁ ) from the first fulcrum shaft (62) to the connection shaft (63) L ₂ ) are set to the same length. That is, the distance ratio (L ₂ / L ₁ , hereinafter referred to as the first lever ratio) is set to 1. On the other hand, for the distance (L ₃ ) from the connecting shaft (63) to the second fulcrum shaft (52), the second fulcrum shaft (52)
Of the distance (L ₄ ) from the lower end of the pushing piece (51) to the lower end (L ₄ / L ₃ ,
(Hereinafter referred to as the second lever ratio) is set to be larger than 1, so that when the engagement pin (42) moves in the axial direction of the hose end portion (4), the lower end of the pushing piece (51) is The larger the second lever ratio (L ₄ / L ₃ ), the larger the movement.

In this case, when the socket (3) is not connected to the hose end (4), as shown in FIG.
The auxiliary valve (23) is in contact with the valve seat (44) by the spring (23), and the stopper (2) is in the closed position. At this time, since the urging force of the spring (43) is set to be larger than the urging force of the spring (23), the base flange (40) of the hose end (4) faces the gas cock body (1) side. It is maintained at the contacted pushing position.

When the socket (3) is connected to the hose end portion (4), the working cylinder (32) at the tip end of the socket (3) advances and locks as shown in FIG.
The stopper (2) is pushed together with the auxiliary valve (22) by the shaft (31) of (3), and the valve is opened. At this time, the operating cylinder (32) and the pushing piece
(51) will be in contact with each other. In this state, socket (3)
As shown in FIG. 5, the engaging pins (42) and (42) move together with the hose end (4) in the same direction.
At this time, the pushing piece with respect to the movement amount of the engagement pins (42) (42)
The amount of movement of the lower end of (51), the product of the first lever ratio and the second lever ratio becomes larger by _{((L 2 / L 1)} × (L 4 / L 3)), the push piece (51) Will push the working cylinder (32),
The socket (3) comes off the hose end (4). Since the biasing force of the spring (43) is set to be greater than the biasing force of the spring (23), as shown in FIG. 3, the large-diameter cylindrical portion (41) of the hose end (4) is (1) When the auxiliary valve (22) comes back into contact with the valve seat (44)
(2) returns to the valve closing position.

In this embodiment, the first lever ratio (L ₂ /
By setting L ₁ ) to 1, the second lever ratio (L ₄ /
L ₃ ) alone is used to amplify the movement amount of the output end with respect to the input end, but the product of the first lever ratio and the second lever ratio ((L ₂
If / L ₁ ) × (L ₄ / L ₃ )) is set to be larger than 1, a lever ratio other than the above may be set. In addition, the connecting shaft (63) is passed through the first lever (6), and the connecting shaft (63) is
Is fitted to the long holes (53) and (53) of the second lever (5), but the arrangement of the connecting shaft (63) and the long holes (53) and (53) is set in reverse. Is also good. That is, the connecting shaft (63) may be penetrated by the second lever (5), and the connecting shaft (63) may be fitted into the elongated hole formed in the first lever (6). Notch hole
The slot (61) may be a slot, and the slot (53) may be a notch.

Further, this embodiment is applied to a gas stopper having a built-in stopper (2) and an auxiliary valve (22) urged in a normally closed direction, but the stopper (2) or the auxiliary valve ( The present invention can also be applied to a type incorporating only the plug 22 or a type incorporating a stopper together with the stopper 2 or the auxiliary valve 22.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part.

FIG. 2 is a view as viewed from an arrow A.

FIG. 3 is an explanatory view of an embodiment.

FIG. 4 is an explanatory view when the socket (3) is connected to the hose end (4).

FIG. 5 is an explanatory view when the socket (3) is pulled from the hose end (4).

FIG. 6 is an explanatory view of a conventional example.

FIG. 7 is an explanatory view of a conventional example.

[Explanation of symbols]

 (1) ・ ・ ・ Gas plug body (2) ・ ・ ・ Plug (23) ・ ・ ・ Spring (3) ・ ・ ・ Socket (31) ・ ・ ・ Shaft (32) ・ ・ ・ Working cylinder (4) ・..Hose end part (42) ・ ・ ・ engaging pin (43) ・ ・ ・ spring (51) ・ ・ ・ push piece (A) ・ ・ ・ two-link mechanism

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 3-69768 (JP, U) JP-A 63-27789 (JP, U) JP-A 59-34768 (JP, Y2) (58) Field (Int. Cl. ⁷ , DB name) F16L 37/00-37/47

Claims (2)

(57) [Claims] 1. A hose end for connecting a socket (3).
(4) A gas stopper having a direct-acting valve urged in a normally closed direction by a spring (23). When the socket (3) is connected to the hose end (4), the gas stopper is closed. The working cylinder (32) inserted to the front end side so as to be able to advance and retreat
The direct acting valve is pushed in by the shaft body (31) of (3) and is opened, and when the working cylinder (32) is pushed in by a predetermined amount, the socket (3)
Is removed from the hose end (4), and the direct-acting valve returns to the closed state.
A hose end portion (4) is provided in the outlet tube portion (10) of (1) so as to be able to protrude and retract, and the hose end portion (4) is urged in the pushing direction by a spring (43) to thereby prevent the spring (43) from being pushed. Apply the urging force to the spring
Set to a greater value than the biasing force of (23), and
The engaging pin (42) protruding from the base end of (4) is projected outside the outlet tube (10), and faces the working tube (32) near the base end of the hose end (4). The pushing piece (51) is arranged so that when the input end moves toward the distal end side of the hose end portion (4), the output end moves more in the same direction than the moving amount. A joint link mechanism (A) is provided, and the input end is connected to the engagement pin (42), and the output end is used as the pushing piece (51), and the hose end (4) is moved by the movement of the engagement pin (42). A gas stopper socket removing mechanism that allows the operating cylinder (32) in the connected state to be pushed in by a predetermined amount by moving the pushing piece (51) with respect to the socket. 2. A gas stopper socket removing mechanism according to claim 1, wherein the stopper (2) incorporated in the gas stopper main body (1) is moved integrally with the direct acting valve so as to be synchronously opened and closed.