JPH0343514Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of application and overview of the invention) The present invention relates to a fluid passage connection opening/closing device that is capable of connecting fluid passages and opening and closing the passage at this connection. A male plug (hereinafter referred to as a plug) is connected to a female plug (hereinafter referred to as an outlet) to connect a flow path, and the outlet is equipped with a means for opening and closing the flow path, and the flow path can be opened and closed by operating the plug. This improves operability by making it possible.

(Prior art and its problems) There is already a channel connection switch consisting of the plug 1 and the outlet 2 disclosed in Japanese Utility Model Publication No. 59-6307. In this structure, a closing member 3 as a channel opening/closing means is provided on the outlet 2 side, and a connecting cylinder portion 4 that rotates together with this closing member is provided at one end of the main body 20 of the outlet. A hose end 11 to which a rubber pipe 10 is connected, and a pair of hose ends surrounding this,
An operation cylinder part 1 that corresponds to the connection cylinder part 4 in a detachable manner.
2.

In this conventional type, when the tip of the hose end 11 of the plug 1 is inserted into the connecting cylinder portion 4 of the outlet 2, the closure 3, the hose end 11 and the rubber tube 10 are connected to each other.
are in the flow path connection state, and at the same time, the operation cylinder part 12
are connected to each other by the connecting cylinder portion 4 in a manner that they are prevented from coming off and are interlocked with each other.

Therefore, when the operation cylinder part 12 is rotated, it rotates independently from the hose end, and the closure 3 is rotated together with the closure, and by opening the valve of the closure, the upstream of the closure 3 is rotated. A flow path from the side to the rubber tube 10 communicates.

If the operation is reversed to the above, the closure 3 will be closed, and the flow path from the outlet 2 to the plug 1 will be cut off.

However, although this conventional device has the advantage of being able to open and close the closure 3 without twisting the rubber tube 10, it has the disadvantage that this opening and closing operation is difficult to perform.

This is because the rubber tube 10 passes through the operation cylinder section 12, and the rubber tube 10 becomes an obstacle when the operation tube section is rotated.

(Technical Problem) The present invention provides an electrical outlet 2 equipped with a connecting cylinder part 4 that rotates integrally with a rotary valve and is coaxial with the rotational axis of the rotary valve, and the connecting cylinder part 4. 4, a plug 1 is connected in a pairwise manner in the direction of the rotation axis of the rotary valve, and when the rotary valve is fully closed, the connecting tube for connecting the flow path of this plug 1 and the connection The cylindrical portion 4 is removably connected in the direction of the rotation axis, and the plug 1 is connected in this connected state.
In the flow path connection opening/closing tool, the outlet 2 and the plug 1 are connected in a fixed state by rotating at a certain angle, and the rotary valve is opened. In order to facilitate operation, the object is to prevent a flexible tube such as a rubber tube connected to the plug from getting in the way when the plug is operated.

(Means) The technical means of the present invention taken to solve the above problems is as follows: The plug 1 is provided with a connecting cylinder 13 connected to the connecting cylinder part 4 of the outlet 2 and a flow path part coaxial therewith. The plug 1 is formed into a substantially L-shape as a whole, consisting of a main body part and a protruding part that projects in a right angle direction from the end of the main body part opposite to the connection pipe 13. Hose end 11 that communicates with 13 and allows connection of a flexible pipe
is provided in the protrusion, and the main body of the plug 1 is set coaxially with the axis of rotation of the plug 1 when operating the rotary valve.

(Function) When the rotary valve is fully closed, the connecting tube 4 of the outlet 2 and the connecting tube 13 of the plug 1 are removable, so the connection tube 41 and the connecting tube 13 are connected in this state. The flow path on the plug 1 side and the flow path on the outlet 2 side are connected. In this state, the rotary valve is fully closed, but at this time, plug 1
and the connecting cylinder portion 4 are connected in a pairwise manner. When the main body of the plug 1 is rotated about the axis of the main body of the plug 1 from this connection position, since the main body of the plug 1, the connecting cylinder part 4 of the outlet 2 and the rotating valve are coaxial, the connection with the plug 1 is also established. Since the cylindrical portion 4 is in a mating state, when the plug 1 is rotated, the rotary valve is fully opened while the flow path remains connected.

At this time, since the entire plug 1 has a substantially L-shape, when the plug 1 is rotated by holding the protrusion protruding from the main body, the plug 1 and the rotary valve can be rotated with a light operation force. can. Furthermore, since the rotation angle of the plug 1 in the above-mentioned operation is usually about 90 degrees, the flexible tube connected to the plug 1 is only bent within the above-mentioned angle range due to this rotation. Therefore, the installation posture of outlet 2 should be changed to plug 1.
If the posture is set in advance according to the rotation angle of the plug 1, the pulling direction of the flexible tube connected to the plug 1 and the protruding direction of the hose end 11 will match when the rotary valve is fully open. In this state, no twisting force acts on the flexible tube.

(Effects) Since the present invention has the above configuration, it has the following unique effects.

When opening and closing the rotary valve, the flexible tube connected to the plug 1 does not get in the way, improving operability. Additionally, the rotary valve can be opened and closed with light force without the need for a special control knob.

In addition, when the plug 1 is operated, the flexible tube connected to it only bends gently, so when the rotary valve is fully opened, the flexible tube will not be twisted or the reaction force of this twisting will be The inconvenience of acting on the rotary valve on the outlet 2 side does not occur.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 5.

In this embodiment, two channels are connected at the same time, and a disk valve is used as the rotary valve of the outlet 2. This disc valve is shown in Figures 1 and 3.
As shown in the figure, a fixed flat plate 23 is provided with a pair of flow passage ports 21 and 22, and through holes 51 and 5 are rotated at a certain angle while facing the plate and are aligned with the flow passage ports 21 and 22.
2, and this disk 5 is integrally attached to a connecting cylinder portion 4 rotatably provided on the plug connection side of the main body 20 of the outlet 2.

Further, this connecting cylinder portion 4 is provided with connecting holes 41 and 42 that match the through holes 51 and 52,
These connection holes 41 and 42 correspond to connection tubes 13 and 13 provided in the plug 1, which will be described later, respectively.

In the structure of this disc valve, cylinder packings 26 and 27 are connected to the ends of the pair of flow passages 24 and 25 provided in the main body 20, and these are connected coaxially with the flow passage openings 21 and 22 on the back surface of the flat plate 23. Stepped portion 28,2 provided in
In order to apply a constant pressure to 8, the cylinder packing 2
Springs 29, 29 are interposed between the flange portions provided at the ends of the springs 6, 27 and the main body 20. Therefore, even if there is a certain gap between the main body 20 and the flat plate 23,
Due to the urging force of the springs 29, 29, the mutually facing surfaces of the disc 5 and the flat plate 23 are brought into contact with each other with a constant pressing force, and the sealing pressure of this sliding surface is ensured.

Next, a lock mechanism is provided between the above-mentioned connecting cylinder part 4 and the main body 20 to regulate the rotation angle of the connecting cylinder part to a constant value.

As shown in FIGS. 2 and 3, this locking mechanism includes a ring 43 that is fitted onto the small diameter portion of the connecting tube 4 and fixed to the open end side of the main body 20, and is provided around the connecting tube 4. The lifting pin 6 has a neck 61 at its upper end and a spring 62 is interposed between it and the connecting cylinder 4 to constantly bias it in the projecting direction.

The neck portion consists of a first neck portion 63 having a slightly smaller diameter than the diameter of the lifting pin 6, and a second neck portion 64 having a smaller diameter than the first neck portion, and the inner diameter of the ring 43 is equal to the circle in which the second neck portion 64 is inscribed. The degree of notch of the first notch 44 and the second notch 45 provided in a part of the ring 43 is set to be equal to or larger than the diameter of the first notch.
It is adapted to the difference in diameter between the neck 63 and the second neck 64.

Incidentally, a cylindrical body 47 having a flange 46 at the open end is attached to the plug connection part of the main body 20.
A pair of notch recesses 48, 48 are disposed opposite to each other in this flange portion.

As shown in FIGS. 1 and 4, the other plug 1 has two L-shaped halves that are connected by screws to form an L-shaped casing as a whole. The connecting tubes 13, 13 protrude from the end face of the cylindrical main body,
Hose ends 11, 11 are provided in a protruding portion that protrudes at right angles from the other end of the main body. As shown in FIG. 4, inside the plug 1, there are two sets of bent flow paths extending from the connecting tube 13 to the hose end 11, and the inside of the hose ends 11, 11 is connected to the terminal equipment side. Terminal channels 14 and 15 are formed.

Further, connecting tubes 13, 13 which respectively communicate with the terminal channels are protruded in parallel from the end face of the main body,
A pair of projecting pieces 16, 16 protrudes outward from the outer periphery of the edge of the main body, and these projecting pieces are connected to the connecting tube 1.
3 and 13, and one protruding piece is located between plugs 1 and 13.
protrudes in the same direction as the protruding part. The size of the protruding piece 16 is adapted to the notch recesses 48, 48 provided in the flange 46.

Note that, as shown in FIGS. 1 and 2, the notch recesses 48, 48, when the outlet 2 is buried in a wall surface with the connection tube 4 facing forward and standing upright, It is set to be located on the left and right of the Further, the rotation direction of the disc valve is set so that when the disk valve is rotated counterclockwise from the fully open position, the valve is opened.

Furthermore, the plug 1 is inserted between the connecting tubes 13 and 13.
As shown in FIG.
1, and the other end is a concave hole 17 formed in the plug 1.
A spring 84 is interposed between a retaining ring 82 located inside and attached to the open end of the recessed hole 17 and a collar provided at the base of the shaft head 83, and the mounting position of the lifting shaft 8 is on the outlet 2 side. It is adapted to the lifting pin 6 of.

In the above embodiment, the hose end 1
1, 11 and the terminal device are connected by a flexible tube such as the rubber tube 10, and on the other hand, the flow path 24 of the outlet 2,
25 is used by piping it to the heat source equipment side.

The actual use of this embodiment will be explained below.
8, 48 and is connected to the outlet 2. As a result, the connection tubes 13, 13 are connected to the connection hole 4.
1 and 42, and the flow path is connected. In this state, since the first neck portion 63 of the lifting pin 6 is aligned with the second notch portion 45, this second notch portion 4
It can only rotate within a range of 5. However, due to this rotation, the projecting pieces 16, 16 enter inside the flange 46, and the plug 1 is held in a state where it is not removed from the outlet 2, and the above-mentioned flow path connection state is maintained.

Next, when the operating part 81 of the lifting shaft 8 is pushed in,
When the elevating pin 6 is lowered and the second neck portion 64 is aligned with the ring 43, and the plug 1 is rotated, the connecting cylinder portion 4 and the disc 5 are rotated as one.
At the final position, the through holes 51 and 52 are connected to the flow path openings 21 and 2.
Matches 2. As a result, heat source machine → flow path 24 →
Through hole 51 → connection hole 41 → terminal flow path 14 → terminal device → terminal flow path 14 → connection hole 42 → through hole 52 → flow path 2
5→Circulation flow path of heat source device is formed.

Since the relationship between the protrusions 16, 16 and the notch recesses 48, 48 and the relationship with the hose ends 11, 11 provided on the protrusion of the plug 1 are as described above, in the above state, The protruding part of the plug 1 faces downward, and the hose end 11,
The flexible tube connected to 11 will extend downward. Therefore, when the outlet 2 is buried in a wall and a flow path is connected from the outlet 2 to a terminal installed below, the flexible tube can be pulled out smoothly and can be pulled out along the wall. It will be placed below.

Next, from this state, operate the protruding part of the plug 1 to move the plug 1 clockwise at a certain angle (approximately 90 degrees
When the neck portion 61 is rotated (degree), the elevating pin 6 is automatically lifted by the spring 62 when the neck portion 61 is aligned with the first notch portion 44, and the first neck portion 63 is engaged with the first notch portion 44. At this time, the disk valve is in a closed state, and the circulation flow path is blocked. When the rotary valve is rotated counterclockwise again from this position, the rotary valve becomes fully open, but at this time,
Rotate the plug 1 counterclockwise with the lifting shaft 8 pushed in. Therefore, in this embodiment, the rotary valve can be opened and closed without removing the plug 1 from the outlet 2. Further, when the plug 1 is to be removed, the elevating shaft 8 may be further rotated closed while being pushed in. As a result, the elevating pin 6 is aligned with the second notch 45, and the projecting piece 16,
16 can be aligned with the notch recesses 48, 48.

In this embodiment, in order to bring the flat plate 23 and the disk 5 into contact with each other, cylindrical packings 26, 26 are provided in the flow path between the flat plate 23 of the main body 20 and are biased in the expansion direction by springs 29, 29. At the same time, as shown in FIG. 1, since a pair of pressure springs S, S are also provided on a line perpendicular to the line connecting the springs 29, 29, the flat plate 23 is brought into contact with the disc 5 in a well-balanced manner. There is.

Furthermore, in the embodiments described above, the present invention is applied to the simultaneous connection of two channels, but it goes without saying that this can also be applied to a gas tank as in the conventional example.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the embodiment of the present invention, Fig. 2 is a plan view of the outlet 2, Fig. 3 is a sectional view taken along line X-X, and Fig.
The figure is a sectional view of the plug 1, FIG. 5 is a sectional view of the elevating shaft 8 of the plug 1, and FIG. 6 is an explanatory view of a conventional example. 11...Hose end, 13...Connection tube, 2...Outlet, 20...Main body.

Claims (1)

[Scope of utility model registration request] an outlet 2 that rotates integrally with the rotary valve and is provided with a connecting cylinder portion 4 that is coaxial with the rotational axis of the rotary valve;
It consists of a plug 1 connected to the connecting cylinder part 4 in a pairwise manner in the direction of the rotation axis of the rotary valve, and when the rotary valve is fully closed, this plug 1
The connection cylinder for connecting the flow path and the connection cylinder part 4 are removably connected in the direction of the rotation axis, and by rotating the plug 1 at a certain angle while in this connected state, the outlet 2 and the plug 1 can be connected. In the flow path connection opening/closing device, the plug 1 is connected to a retaining state and the rotary valve is opened.
Connection tube 1 connected to connection tube section 4 of outlet 2
3 and a main body portion comprising a flow path portion coaxial therewith;
The plug 1 is formed into a substantially L-shape as a whole, with a protrusion projecting in a right angle direction from an end opposite to the connection tube 13 in the main body, and communicating with the connection tube 13. The flow path connection opening/closing device has a hose end 11 to which a flexible pipe can be connected in the protrusion, and the main body of the plug 1 is set coaxially with the axis of rotation of the plug 1 when operating the rotary valve.