JPS6139156Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is used, for example, in a hot water circulation type heating system, etc., and includes a liquid outlet body that connects to outdoor equipment such as a boiler, and a plug that connects to indoor equipment such as a fan convector. The outlet body is provided with a flow path opening/closing valve and an engagement piece that prevents the connected plug body from detaching, and the plug body is connected to the outlet body between the plug body, the engagement piece, and the valve. The present invention relates to a liquid outlet provided with a check mechanism configured to allow a valve to be opened only when the valve is closed, and to allow connection and disconnection of a plug body only when the valve is closed.

Conventionally, one engaging piece was provided, and a check mechanism was formed so that the plug body and the valve were linked to one engaging piece (for example, Japanese Utility Model Application Publication No. 54-69433).

However, with the type that prevents the plug body from detaching with only one engagement piece, the plug body tends to wobble against the outlet body due to the seal between the two, and this looseness can cause fluid leakage and fatigue of the elastic seal. However, there was room for further improvement.

The object of the present invention is to improve the engagement groove for preventing the plug body from slipping out and the check mechanism.
While sufficiently maintaining the fluid leakage prevention function through the prescribed check-up function, it also sufficiently prevents fluid leakage due to rattling of the plug body and accompanying fatigue of the seal.
The purpose is to prevent problems such as indoor contamination due to fluid leakage.

The characteristic configuration of the present invention is that an engaging piece that acts to prevent detachment from a plug body that can be connected to and detached from an outlet body is attached to the outlet body so as to be slidable in a direction transverse to the flow path of the connected plug body. The plug body is attached to the lock plate and is also attached to the outlet main body so that the engagement portion can swing toward and away from the engagement piece of the lock plate, and the pair of the engagement pieces are connected. The plug body is arranged so as to engage with each other from opposite sides, and is interlocked and connected so as to move integrally in the directions of approaching and separating from each other, and if the plug body is not connected, the outlet body A cam plate that rotates integrally with the valve and rotates in conjunction with the sliding of the lock plate is rotatably operated on the check mechanism that acts to prevent the plug body from detaching if the valve does not open and the valve does not close. a locking pin which is slidable between a locking position that allows the locking plate to slide and a locking position that prevents the sliding of the locking plate;
The device is capable of being maintained in the locked position by the biasing action of a spring, and maintained in the unlocked position by the pressing action of the connected plug body, and its effects are as follows. .

In other words, as illustrated in FIG.
7 is connected to the outlet body 7, the lock pin 41 is moved to the unlocked position that allows the lock plate 37 to slide, and the rotation of the cam plate 38 accompanying the opening of the valve causes the lock plate 37 to release the engaging piece 35 provided thereon. is slid to engage with the plug body 17, and as the lock plate 37 slides, the swingable engagement piece 35 is pivoted to engage with the plug body 17, and the pair of engagement pieces 35 are locked on both sides of the plug body 17 to prevent the plug body 17 from coming off and rattling when the valve is opened.

As illustrated in FIG. 5, when the cam plate 38 is rotated as the valve closes, the lock plate 37
The engaging piece 35 provided thereon is slid to a position where it comes off from the plug body 17, and as the lock plate 37 slides, the swingable engaging piece 35 is swung so that it comes off from the plug body 17, and the valve is closed. Detachment of the plug body 17 in this state is permitted.

As shown in FIG. 5, the plug body 17
When the receptacle 7 is removed from the receptacle body 7, the lock pin 41 is engaged with the lock plate 37.
This prevents the cam plate 38 from moving or rotating in the valve opening direction, thereby preventing fluid leakage due to the valve opening operation when the plug body 17 is removed.

As a result, the valve cannot be opened unless the plug body is connected, and the plug body cannot be removed unless the valve is opened, thereby preventing fluid leakage caused by the valve opening when the plug body is disconnected, or the plug body detaching when the valve is opened. While making full use of the prescribed restraint function that is to be prevented,
By improving the plug body separation prevention by a pair of engaging pieces, it is possible to sufficiently prevent the plug body from rattling when connected, and prevent fluid leakage due to rattling or seal fatigue due to rattling. It has become possible to effectively prevent serious troubles such as indoor contamination due to fluid leakage with a high degree of reliability.

Next, examples will be shown.

As shown in Figures 1 and 2, two round-trip hot water pipes 2 are connected to outdoor equipment 1 that serves as a heat source such as a boiler, and are connected to indoor equipment 3 that serves as a heat radiator such as a fan convector. Two reciprocating systems of hot water piping 4 are connected at a liquid outlet A disposed within a hole 5a of a wall body 5.

The liquid outlet A has an outlet main body 7 provided inside a sleeve case 6. To form the sleeve case 6, a large-diameter cylindrical portion 6a and a small-diameter cylindrical portion 6b with a male thread are integrally connected, and both of these are connected. Cylinder part 6
A partition wall 6C having a hole 6C' through which the pipe 2 is inserted is connected to the boundary between a and 6b, and a flange 6d that contacts the inner surface of the wall body 5 is connected to the large diameter cylindrical portion 6a. Then, by fitting the sliding flange 9 with the waterproof gasket 8 pasted on the inner surface into the small diameter cylindrical portion 6b inserted into the hole 5a and screwing the nut 10, both flanges 6d and 9 are connected to the wall. 5 is tightened, and the sleeve case 6 is fixed to the wall body 5. In addition, 11 is a decorative plate connected to the indoor flange 6d, and 12
13 is a heat insulating material fitted over the piping 2;
are screws for fixing the outlet main body 7 to the sleeve case 6.

As shown in FIGS. 3 to 7, the outlet main body 7 has two channels 15 communicating with the piping 2, and each channel 15 has a ball valve 16 that opens and closes both channels 15 at the same time. The end portions of the flow paths 15 are provided with connecting portions 18 for inserting the plug bodies 17, respectively.
is formed. The plug body 17 is connected to both the reciprocating pipes 4 on the indoor equipment 3 side, and has two channels 19 that communicate with both the pipes 4 separately. A valve 21 which is closed at a valve 21 is interposed therein, and a cylindrical portion 22 which can be fitted and connected to and detached from the connecting portion 18 is provided at each end of the flow path 19. 2
O-rings 23 are fitted. A valve push rod 24 for automatically opening the valve 21 when the cylindrical portion 22 of the plug body 17 is pushed into each of the connection portions 18 of the outlet body 7 is provided, and the valve 21 is pushed into the valve push rod 24. Before making contact, O-ring 2 on the tip side
3 is constructed to be watertight.

As shown in FIGS. 2, 7, and 8, a lever 25 is provided for opening and closing the ball valve 16, and the lever 25 is connected to an operating shaft 26 extending from the valve 16. A spring 27 is provided so that the lever 25 rotates integrally with the operating shaft 26 and is swingably operated from a position perpendicular to the operating shaft 26 to a position extending laterally outward, and urges the lever 25 to the orthogonal position. The lever 25 consists of a lever case 28 that is engaged with an operating shaft 26, and a rod 29 that is fitted into the lever case 28 so as to be able to move in and out, and is configured to be extendable and retractable. In addition, 30 is a lock pin 31 that engages with the circumferential groove 29a at the inner end of the rod 29 to prevent the rod 29 from being pulled out.
is a spring that urges the lock pin 30 to protrude;
32 is a knob, and 33 is a stopper pin that restricts the lowering position of the lever 25.

As shown in FIGS. 3 to 7, the lock plate 3
7 is connected to the outlet body 7, and the plug body 17
The plug body 1 is attached so as to be swingable in the direction across the flow path.
The engagement piece 35 that engages with the groove 34 or 40 of 7 to prevent the plug body 17 from coming off is attached to the lock plate 37, and the engagement action portion approaches the engagement piece 35 of the lock plate 37. The pair of engagement pieces 3 are attached to the outlet main body 7 which can swing freely in the direction of separation.
They are arranged so as to engage with the plug body 17 to which the plugs 5 are connected from opposite sides.

In addition, the pin 3 attached to the swingable engagement piece 35
6 is inserted into the elongated hole 37a of the lock plate 37 to form an interlocking mechanism The spring 39 is configured so that both the engaging pieces 35 can be engaged or disengaged simultaneously.
is provided so as to bias the locking plate 37 so that both engaging pieces 35 are maintained in the engaged state.

The plug body 17, the engagement piece 35 and the valve 16
During this period, the valve 16 is allowed to be opened only when the plug body 17 is connected to the outlet body 7, and the valve 16 is allowed to be closed only when the plug body 17 is connected to the outlet body 7.
A check mechanism Y is provided that is configured to allow the connection and disconnection operations of the check mechanism Y. The configuration of the check mechanism Y will be described below.

A cam plate 38 is provided so as to be rotatable integrally with the valve 16, and is also formed to be able to fit into a notch 37b of the lock plate 37 so as to rotate in conjunction with the sliding movement of the lock plate 37. Further, the lock pin 41 is placed in an unlocked position that allows the lock plate 37 to slide;
A spring 42 is provided so as to be slidable between the locking position and the locking position where sliding of the locking plate 37 is prevented by engagement with the notch of the locking plate 37, and biasing the locking pin 41 to maintain it in the locked position. The lock pin 41 is arranged so that it can be maintained in the unlocked position by the continued pressing action of the plug body 17.

In short, it is configured to provide the functions detailed below.

5 and 6 when valve 16 is closed.
As shown in the figure, the cam plate 38 pushes down the lock plate 37, the lock pin 41 engages with the notch 37c of the lock plate 37, and protrudes toward the mounting portion of the plug body 17, and both engaging pieces 35 They are spaced apart from each other and are in a state where insertion and removal of the plug body 17 is permitted.
The cam plate 38 restricts the sliding of the lock plate 37, thereby preventing the lever 25 from opening the valve 16.

From the above state, connect the plug body 17 to the connecting part 18.
As shown in FIGS. 3 and 4, the valve 21 is automatically opened by the valve push rod 24, the plug body 17 pushes the lock pin 41, and the lock pin 41 enters the notch in the lock plate 37. It comes off from 37c. When the valve 16 is opened by the lever 25, the lock plate 37 is slid by the spring 39, and both engaging pieces 35 are connected to the groove 34 of the plug body 17.
40 to prevent the plug body 17 from coming off. Further, the valve 16 can be opened and closed by the lever 25 while the plug body 17 is kept in the state where the engagement pieces 35 prevent the plug body 17 from coming off.

The lever 25 is swung until it comes into contact with the stopper pin 33 to close the valve 16, and then, as shown in FIG. When oscillating around 33,
By sliding the lock plate 37 using the cam plate 38, both engaging pieces 35 are disengaged from the plug body 17, and the plug body 17 can be freely removed. Further, when the plug body 17 is removed, the lock pin 41 slides by the spring 42, and the lock pin 41 engages with the notch 37c of the lock plate 37.
7 prevents the valve 16 from being opened by the lever 25.

Next, another example will be shown.

By appropriately setting the strength of the spring 42 or 20 relative to the lock pin 41 or valve 21, when both engaging pieces 35 are disengaged from the plug body 17, the plug body 17 can be automatically pulled out by the elastic force of the spring 42 or 20. become. The outlet main body 7 is used by being attached to the outer wall of a building, floor wall, etc., but if a small amount of leakage from the connection part 18 when the plug body 17 is pulled out becomes a problem, the plug body 1 is attached to the connection part 18.
It is better to provide a valve that automatically closes at the same time as No. 7 is removed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a schematic configuration diagram of a hot water circulation heating system, Fig. 2 is a partially enlarged sectional view, and Figs. 3 to 7 are explanatory diagrams of main parts. 3 and 4 show the connected state, FIGS. 5, 6, and 7 show the detached state, and FIG. 8 is a sectional view of the operating lever. 1...Outdoor installed equipment, 3...Indoor installed equipment, 7
... Outlet body, 15 ... Channel, 16 ...
Valve, 17...Plug body, 35...Engagement piece, 37...
...Lock plate, 38...Cam plate, 41...Lock pin, 42...Spring, Y...Check mechanism.

Claims (1)

[Scope of utility model registration request] It consists of an outlet main body 7 that connects to the outdoor equipment 1 and a plug body 17 that connects to the indoor equipment 3.
6, and an engagement piece 35 for preventing the connected plug body 17 from detaching, and the plug body 17 is connected to the outlet body 7 between the plug body 17, the engagement piece 35, and the valve 16. The liquid is provided with a check mechanism Y configured to allow the valve 16 to be opened only when the valve 16 is closed, and to allow the plug body 17 to be connected and disconnected only when the valve 16 is closed. In the outlet, the engagement piece 35 is attached to a lock plate 37 attached to the outlet body 7 so as to be slidable in a direction transverse to the flow path of the connected plug body 17, and the engagement piece 35 of the lock plate 37 is slidably attached to the outlet body 7. The engagement portion is attached to the outlet main body 7 so as to be able to swing toward and away from the plug body 35, and the pair of engagement pieces 35 are engaged with the connected plug body 17 from opposite sides. The check mechanism Y is arranged such that the valve 16 rotates integrally with the valve 16, and is interlocked so as to move integrally in the directions of approaching and separating from each other. cam plate 3 that rotates
The lock pin 41 is provided so as to be rotatably operable, and the lock pin 41 is slidable between a lock release position where the lock plate 37 is allowed to slide and a lock position where the slide is prevented by the biasing action of a spring 42. A liquid outlet is provided so that it can be maintained in the locked position and maintained in the unlocked position by the pressing action of the connected plug body 17.