JP2547731Y2 - Gas tap socket removal device - 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, and more particularly to a socket removing mechanism for removing a socket by operating a cover plate for closing a plug arrangement portion of a gas plug contained in a casing. .

[0002]

2. Description of the Related Art In a gas plug of a type in which a gas plug is housed in a casing, a circuit in the gas plug is opened by connecting a gas pipe connector socket, and the circuit is opened by removing the socket. Some types are blocked. In this type of gas stopper, a plug which is a counterpart of the socket is exposed from an opening in a front panel which closes an open end of a casing. So, when the gas stopper is not used,
A structure in which the plug exposed portion is closed by a cover plate is proposed in Japanese Patent Application Laid-Open No. 2-76982. In this prior art, in addition to the above functions, when the cover plate is opened, the socket connected to the plug can be removed by operating the cover plate. Therefore, there is no need to provide an operation unit for removing the socket separately from the lid plate. Further, the socket can be removed simply by operating the lid plate in the open state as it is, so that the operation is simple.

However, in this prior branch operation, the lid plate can be set in two modes, an open state and a closed state, and the socket can be removed in the open state. However, after the socket is removed, the lid plate is removed. Since it is kept open, it must be closed manually. Therefore, in some cases, the lid plate may be left in an open state. In this case, since the opening of the plug (P) is exposed, dust and the like easily enter the plug. The present invention has been made in view of such a point,
"The plug (P) of the gas stopper main body (1) is accommodated in the casing (3), and the plug (P) is exposed from the opening of the front panel (30) closing the open end of the casing. A cover plate (5) for closing the opening is provided, and the cover plate (5) is provided on the casing so as to be rotatable from a closed position to an open position standing upright with respect to the surface of the front panel (30); In the gas plug socket removing device, which is capable of operating the socket removing device (2) provided in the casing by pushing the cover plate into the casing with the cover plate opened, the automatic operation is performed when the socket removing operation is completed. It is an object of the present invention to return the cover plate to the closed state.

[0004]

The technical means of the present invention for solving the above-mentioned problem is as follows: "A pair of arms (51), (51) are projected into the casing (3) from opposing positions on both sides of the lid plate (5). Let
The paired relationship between the arm and the casing (3) is set so that the arm (51) and the casing (3) can be moved linearly by a constant stroke in the axial direction of the plug (P) and relatively rotated. And a spring for urging the cover plate (5) toward the tip end of the plug (P). The mounting portion of the spring on the arm (51) side rotates the cover plate (5) from the closed position to the open position. In the process, the cover plate (5) is in an open position in a relationship of moving beyond the dead center with respect to the mounting portion on the casing (3) side.
An engagement piece (F) is provided in the movement locus of the arm (51) when the arm (51) is pushed in, and an engagement projection (54) is provided at a part of the tip of the arm (51). The mating projection is located at a position disengaged from the engaging piece (F) in the closed base position of the lid plate (5), and is positioned in a one-way engagement with the engaging piece (F) in the open position. The mating relationship is a relationship that is engaged only when the cover plate (5) returns to the non-pushed position. ”

[0005]

The above technical means operates as follows. A pair of arms (51) (5) are positioned from opposite positions on both sides of the lid plate (5).
1) is protruded into the casing (3), and the pair relationship between these arms and the casing (3) is set so as to be able to move a fixed stroke in the axial direction of the plug (P) and relatively rotate. When the plate (5) is turned upright with respect to the front panel (30), the lid plate is opened. or,
Cover plate (5) between the arm (51) and the casing (3)
A spring is provided to bias the end of the plug (P) toward the distal end of the plug (P). In this open position, the spring urges the cover plate (5) in the open direction, and the open position is maintained. In this open position, the plug (P) is exposed at the opening of the front panel (30). When a socket is connected to this plug, the gas circuit in the gas plug communicates. That is, the gas is used.

Since the cover plate (5) is supported so as to be movable also in the axial direction of the plug (P), when the cover plate (5) is pushed in the open position, the cover plate (5) is interlocked therewith. The socket removal device (2) is operated to remove the socket connected to the plug (P). At this time, the engagement piece (F) and the engagement protrusion (54) of the arm (51) are at the engagement position, but they are engaged only when the cover plate (5) returns to the non-pushed position. Since they are in a one-way engagement relationship, they relatively move without being engaged.

When the pushing force of the cover plate (5) is released, the cover plate (5) is attached to the tip of the plug (P) by the spring interposed between the arm (51) and the casing (3). Since the returning urging force is acting, the lid plate (5) is returned and moved in an upright posture with respect to the front panel (30). The engagement piece (F) and the engagement projection (54) have the above-mentioned relationship, and the engagement projection is located at a position disengaged from the engagement piece (F) when the cover plate (5) is closed. In the open position, the engagement piece (F) and the engagement projection (54) are engaged with each other during the return movement because the engagement piece (F) and the engagement protrusion (54) are positioned in a one-way engagement relationship with the engagement piece (F). The plate (5) is rotated to the closed position and returns to the up position. When rotated in this manner, the engagement between the engagement piece (F) and the engagement protrusion (54) is released. By this rotation, the mounting portion on the arm (51) side of the spring that urges the lid plate (5) toward the tip end of the plug (P) exceeds the dead center with respect to the mounting portion on the casing (3) side. And the lid plate (5) is urged to the closed position. Thereby, the cover plate (5) is returned to the initial position in which the opening of the front panel (30) is closed. Thus, the lid plate (5)
The cover plate (5) is returned to the closed position only by releasing the pushing force of the cover.

[0008]

[Effect] Since the cover plate (5) is returned to the closed position only by releasing the pushing force of the cover plate (5), a special method for closing the cover plate (5) after removing the socket. This eliminates the need for a simple operation and prevents the inconvenience of leaving the plug (P) in the exposed state.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The gas stopper of the embodiment of the present invention is generally shown in FIG.
7 includes a gas plug main body (1) and a detaching device (2) attached so as to surround a plug (P) protruding from the gas plug main body (1). . A detaching mechanism is accommodated in a cylindrical casing (3) which is a main part of the detaching device (2), and the casing (3) is moved from the base end of the plug (P) of the gas stopper body (1). The detaching device (2) and the gas stopper body (1) are integrated with each other by being screwed to the projecting mounting rods (11) and (11). The mounting rods (11) and (11) radially protrude at intervals of 90 degrees around the plug (P), and have screw holes (N) formed at their ends, and these screw holes (N) are formed.
(N) are arranged on one circumference centered on the plug (P).

Further, as shown in FIG. 7, the casing (3) has a semi-cylindrical portion (3a) having an arc-shaped cross-section and arranged circumferentially to accommodate a spring (33) and a ring (4). ) And a pair of upright pieces (3b), (3b), a plate-like portion (3c) juxtaposed with the upright pieces at a fixed interval, and the semi-cylindrical portion (3).
a) a front panel (30) connecting the plate part (3c) to the plate part (3c)
A bottom wall (36) for integrally connecting the pair of upright pieces (3b) and (3b) with the plate-like portion;
0) and a bottom wall (36) and four cylindrical portions (31) (31) integrally connected to the semi-cylindrical portion (3a) and through which the mounting bolt (B) is inserted. And FIG.
The cylindrical portions (31) and (31) are arranged so as to coincide with the screw holes (N) of the mounting rods (11) and (11) of the gas stopper body (1). The tubular part (31) (3
When the mounting bolts (B) and (B) into which the 1) is inserted are screwed into the screw holes (N) and (N), respectively, as shown in FIG. 4, the casing (3) and the mechanism accommodated in the casing (3) (2) is attached to the gas stopper body (1). Further, the gas plug body (1) of this embodiment is configured to include a gas connecting portion (12) orthogonal to the plug (P). As shown in FIG. 5, it is located in the middle of a pair of adjacent mounting rods (11) (11). Therefore, as shown in the figure, the mounting posture of the casing (3) with respect to the mounting rods (11) and (11) can be changed in four modes. Gas connection to (12)
Even if the gas plug is arranged so that the gasket faces right, left, up, or down, the mounting posture of the casing (3) is set to a predetermined posture so that the posture of the removing device (2) with respect to the wall surface is maintained at a constant posture. Can be set.

The detaching device (2) of this embodiment is described below in further detail. The removal device (2) is shown in FIG.
As shown in (1), a ring (4) housed in the casing (3) so as to be able to move up and down and constantly urged toward the base end side of the plug (P) by a spring (33);
Lever (40) disposed on the back surface of the
And a cover plate (5) interlocked with 0). The lever (40) is composed of an arc-shaped portion (41) in contact with the back surface of the ring (4), and an input arm (42) following the arc, as shown in FIGS. (42)
Of the cover (5) protrudes from an opening (35) formed in the body of the casing (3), and comes into contact with the end of the lid plate (5) when the socket (S) is removed. A long hole is formed in the middle of the lever (40), and this is formed in a projection (34) provided on a support portion rising from the bottom wall of the casing (3) near the plug (P). The lever (40) pivots around the projection.

On the other hand, the cover plate (5) is a rectangular plate-like body as shown in FIG. 6, and its size is an arc-like shape of an opening (37) formed in the front panel (30) of the casing (3). The width is set to be larger than the diameter of the portion and slightly smaller than the width of the rectangular portion of the opening, and the arms (51) and (51) are extended downward from both sides of the plate-like body. Each arm (51) is provided with a fulcrum shaft (52) projecting outward as shown in FIGS.
2) is fitted into the guide holes (32) (32) of the bearing plates (39) (39) provided at a position shifted from the diameter line of the cylindrical portion (3a) toward the upright piece (3b). . The guide hole (32) has a shape having a certain length in the axial direction of the plug (P), and the fulcrum shaft (52) is rotatable within the guide hole (32) and the plug (P). ) Can be moved parallel to the axis. A predetermined distance is provided between one end of the cover plate (5) and the plate-shaped portion (3c), and the cover plate (5) is turned upright about a fulcrum shaft (52). In the state, the lower part is inserted between the cylindrical part (3a) and the plate part (3c).

Further, the tip (lower end) of the arm (51) is an edge (53) in a direction perpendicular to the axis of the plug (P). 54)
Project downward. The projecting position of the engaging projection (54) is from the lower side of the fulcrum shaft (52) to the rear (the lid plate (5)).
At the time of the upright rotation of the arm (51) in the rotation direction of the arm (51). In the casing (3), the guide hole (32) is provided in the vicinity of the arrangement portion of the guide hole (32).
At a fixed distance from the side end surface (3) of the semi-cylindrical portion (3a).
8), and this side end surface (38) is parallel to the axis of the plug (P). An engagement piece (F) made of a leaf spring is disposed on the side end face (38), and the engagement piece (F) is fixed to the side end face (38) at the upper end, and is formed in an arc shape. Protrude into. Therefore, the free end of the engagement piece (F) is separated from the side end face (38) by a certain distance.

Further, a surface portion (arm (5)
The distance between the guide hole (32) and the guide hole (32) is
It substantially coincides with the vertical distance between the fulcrum shaft (52) of 1) and the tip of the engagement projection (54). The arc on the free end side of the engagement piece (F) is an arc centered on the fulcrum shaft (52).
The engaging projection (54) has a shape formed by a side perpendicular to the edge (53) and an outer peripheral edge formed of an arc centered on the fulcrum shaft (52). The radius of curvature is set slightly smaller than that of the engagement piece (F). In the combination of the casing (3) and the cover plate (5) having the above configuration, when the cover plate (5) closes the open end of the casing (3), as shown in FIGS. 52) is located at the end (upper end) of the guide hole (32) on the tip side of the plug (P). In order to maintain the cover plate (5) in this position, the casing (3)
A tension spring (55) is interposed between the vicinity of the upper end of the guide hole (32) and the vicinity of the engagement projection (54) on the wall of the body. As a result, the lid plate (5) is lifted toward the distal end of the plug (P) by the tension of the tension spring (55), and is maintained in the closed state shown in FIG.

In the above embodiment, when one end of the cover plate (5) is rotated so as to be pushed between the upright pieces (3b) (3b) and the plate-like portion (3c), as shown in FIGS. Then, the lid (5) is opened in a state of being parallel to the plug (P), and at this time, one end of the lid (5) comes into contact with the input arm (42) of the lever (40). . On the other hand, the engagement projection (54) at the tip of the arm (51) is located above the engagement piece (F) with the rotation. Further, the urging force in the rotation direction of the lid plate (5) due to the tension of the tension spring (55) is set smaller than the upward urging force acting on the input arm (42) of the lever (40). The contact between the input arm (42) and the end of the cover plate (5) prevents further rotation of the cover plate. When the socket (S) is connected, the internal circuit of the gas stopper main body (1) is opened, and gas is supplied to the downstream side of the socket (S). When the socket (S), which is opened and connected to the downstream equipment by the gas rubber tube (T), is connected to the plug (P), a gas supply state is established.

To remove the socket (S) from this state, the cover plate (5) is pushed into the casing (3). At this time, the action point of the cover plate (5) is deviated with respect to the fulcrum axis (52), but the fulcrum axis (52) of the arm (51) is connected to the plug (P).
Is inserted into the guide hole (32) extending in the direction along the axis of the input arm (42), the input arm (42) can be pushed in while the cover plate (5) maintains the upright posture. As a result, the arc-shaped portion (41) swings toward the distal end side of the plug (P) to push up the ring (4) against the spring (33), and push the protruding cylindrical portion (So) of the socket (S). , Socket (S) is removed from plug (P). Thus, the gas circuit in the gas plug main body (1) is closed. In this process, the arm (51) is also pushed in integrally, so that the engaging projection (53) of the arm (51) located above the engaging piece (F) is (F) is pushed in while bending the free end to the side.
3) is located over the free end of the engagement piece (F).

Thereafter, when the pushing force of the cover plate (5) is released, the cover plate (5) is lifted by the return swinging power of the lever (40) and the urging force of the tension spring (55). At this time, since the engagement protrusion (53) is engaged with the free end of the engagement piece (F), the arm (5) is raised by the lifting force.
1) is rotated in the opposite direction (counterclockwise in FIG. 3). As a result, the lower end of the tension spring (55) moves to a position beyond the dead center, and the engagement between the engagement protrusion (53) and the engagement piece (F) is released. , A biasing force in the closing direction acts on the lid plate (5), and finally,
To the closed state. As described above, in this embodiment, after the cover plate (5) is opened and the socket (S) is connected to the plug (P), the cover plate (5) is pushed in to remove the socket (S). Just good. In addition, cover plate (5)
When the pressing force for removing the socket is released, the device automatically returns to the closed state.

[Brief description of the drawings]

FIG. 1 is a side view of a socket removing device block according to an embodiment of the present invention.

FIG. 2 is an explanatory view of an arm (51) with a cover plate (5) opened.

FIG. 3 is a diagram showing a relationship between an arm (51) and an engagement piece (F) in a state where a cover plate (5) is pushed in.

FIG. 4 is a cross-sectional view of the entire gas stopper equipped with a socket removing device.

FIG. 5 is a sectional view taken along line XX.

FIG. 6 is an overall plan view.

FIG. 7 is a perspective view of a casing (3).

FIG. 8 is an operation explanatory view when the socket (S) is removed.

FIG. 9 is a perspective view of a main part.

[Description of sign]

 (3) ・ ・ ・ Casing (1) ・ ・ ・ Gas plug body (p) ・ ・ ・ Plug (30) ・ ・ ・ Front panel (5) ・ ・ ・ Cover plate (2) ・ ・ ・ Socket removal device (51) ) Arm (P) Plug (F) Engagement piece (54) Engagement protrusion

Claims (1)

(57) [Scope of request for utility model registration] 1. A plug (P) of a gas stopper main body (1) is accommodated in a casing (3), and the plug (P) is exposed from an opening of a front panel (30) for closing an open end of the casing. A cover plate (5) for closing the opening of the front panel, and the cover plate (5) is rotatable in the casing from a closed position to an open position standing upright with respect to the surface of the front panel (30). In a gas plug socket removing device which is capable of operating the socket removing device (2) provided in the casing by pushing the cover plate into the casing in the cover plate opening posture, the cover plate ( 5) A pair of arms (51) and (5)
1) is protruded into the casing (3), and the even number relationship between these arms and the casing (3) is set so as to be linearly movable and relatively rotatable by a fixed stroke in the axial direction of the plug (P). A spring is provided between the arm (51) and the casing (3) to urge the cover plate (5) toward the distal end of the plug (P). 5)
Is moved beyond the dead center with respect to the mounting portion on the casing (3) side in the process of turning from the closed position to the open position, and the arm ( An engagement piece (F) is provided in the middle of the movement locus of 51), and an engagement projection (54) is provided at a part of the tip of the arm (51). In the closed position, the engagement piece (F) is located at a position disengaged from the engagement piece (F), and in the open position, the engagement piece (F) is positioned in a one-way engagement relationship. A gas plug socket removal device that is engaged only when returning to the non-push position.