JPH0444956Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of application and overview of the invention] The invention relates to a simultaneous connection device for two channels such as a hot water circulation circuit, and includes a pair of connecting parts of a plug connected to a terminal equipment side and a heat source device. In order to accurately match the pair of connections on the connector body that is connected to the circuit on the side and to prevent leakage from both connections, the connection on the plug side and the connection on the main body are connected to each other. This allows the fitting portions of the two to independently ensure coaxiality.

[Prior art and its problems] As a connecting device for simultaneously connecting two flow paths such as a hot water circulation circuit, a device disclosed in Japanese Utility Model Publication No. 3592/1983 has already been proposed. In this conventional plug, as shown in FIG. 6, a pair of connecting holes 11, 11 are provided in the connector main body 1, and a pair of connecting cylinder portions 21, 21 are provided protrudingly in the other plug body 2. . In this conventional plug body 2, the plug body 2 is connected to the terminal device A via a pair of flexible tubes that are connected to each of the connecting cylinder portions 21 separately, and the plug body 2 is connected to the terminal device A through the connecting hole 1 of the connector body 1.
1, 11 are used by connecting the outward and return routes from the heat source device N separately, and the plug body 2 is connected to the connector body 1.
When connected to the heat source device N, the circulation circuit connecting the heat source device N and the terminal device A will be connected to each other.

However, in this conventional type, the connector body 1
Leakage is likely to occur at the connecting portion between the plug body 2 and the plug body 2, that is, at the fitting portion between the connecting hole 11 and the connecting cylinder portion 21.

This is because the connection holes 11, 11 are integrally formed in the connector main body 1, and the other connection cylinder portions 21, 21 are also integrally provided in the plug body 2, so that the connection holes 11, 11 are formed integrally with each other. This is because the pitch and the pitch of the connecting cylinder parts 21, 21 are difficult to match, and the sealing of the fitting part between the connecting cylinder part 11 and the connecting cylinder part 21 becomes unreliable.

[Technical Problem] The present invention solves the problem of a pair of connecting holes 11, 11 provided in the connecting device main body 1 connected to the heat source device N.
and the connecting cylinder portions 21, 21 of the plug body 2 connected to the terminal device A”, the fitting connection portion between the connector body 1 and the plug body 2 is In order to improve airtightness, the technical problem is to make each fitting connection part fit independently of each other.

[Technical Means] The technical means of the present invention taken to solve the above-mentioned technical problems is ``Accommodating the connector main body 1 in a box B with an open front, and making the connector main body 1 independent L-shaped. The outgoing path on the heat source N side is connected to the connection part parallel to the bottom wall of box B of the connection pipe 1a, and the outgoing path on the side of the heat source N is connected to the connection part parallel to the bottom wall of box B of the other connection pipe 1b. Connect the return path of the heat source device N side to the connecting part, and connect the connecting pipe 1.
A connecting hole 11 is provided at each end of the connecting tubes 1a and 1b located at the opening of box B, and these connecting tubes 1a and 1b are rotated in the rotational direction around the connecting hole 11, in the axial direction of the connecting hole 11, and in the axial direction of the connecting hole 11. Box B was held in a free state in a small range in a direction perpendicular to this.

[Operation] The above technical means of the present invention operates as follows.

When the box B is installed, the connecting holes 11, 11 formed in the connecting pipes 1a and 1b open to the open end of the box B. In this state, the connection cylinder part 2 of the plug body 2
1 and 21 are fitted into the connection holes 11 and 11, the outward and return paths from the heat source device N are communicated via the terminal device A, and a circulation circuit is formed. At this time, the mutual spacing between the connecting cylinder parts 21 and 21 is set to the connecting hole 1.
Even if the mutual spacing between the connecting holes 11 and 11 does not match exactly, the connecting pipes 1a and 1a equipped with the connecting holes
are held in box B independently from each other, and these connecting pipes 1a, 1b
Since is free only within a certain small range,
The distance between the connecting cylinder parts 21 and 21 of the plug body 2 exactly matches, and the connection cylinder part 2
Even if the mutual parallelism between Nos. 1 and 21 is inaccurate, they will fit together while following this parallelism.

[Effects] Since the present invention has the above configuration, it has the following unique effects.

When the plug body 2 is connected to the connector body 1,
The distance between the connecting holes 11, 11 exactly matches the distance between the connecting tube portions 21, 21 of the plug body 2, and even if the parallelism between the connecting tube portions 21, 21 is inaccurate, this parallelism Since they are fitted in a perfectly aligned state, no leakage occurs from the fitting connection portion of the connector main body 1 and the plug main body 2.

Since the connector main body 1 is constituted by the connecting pipe 1a and the connecting pipe 1b having a common configuration, the structure of the connector main body 1 can be simplified. Therefore, productivity is improved compared to a structure in which the connection holes 11, 11 are formed in one member and two independent flow paths are formed.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 5. In the embodiment shown in FIGS. 1 to 5, connection pipes 1a and 1b constituting the connector body 1 are
The connecting pipes 1a and 1b are both bent in an L-shape and are provided with a normally closed first valve body 12 inside, and these connecting pipes 1a and 1b are held in a box B.
(See FIGS. 1 and 2) As shown in FIG. 2, the first valve body 12 is adapted to come into contact with a valve seat 13 disposed at the bending point of the connecting pipes 1a and 1b. A spring box B interposed between the valve chamber 14 and the bottom of the valve chamber 14 biases it in the normally closed direction. Further, a valve shaft 15 is attached to the first valve body 12.
protrudes toward the open end of the connection hole 11, and in the connected state, the valve shaft 15 comes into contact with a valve shaft 23 of a second valve body 22 provided within the connection cylinder portions 21, 21 of the plug body 2, which will be described later.

The connecting pipes 1a and 1b configured as described above are
It is held by a bracket 3 attached to box B, and this bracket 3 is
Located on the open end side of box B and connecting cylinder portion 21,
Cylindrical portions 31, 31 arranged to match the spacing of 21
It consists of a holding frame 32 having a
It is fixed to the bottom of box B by.

The connecting portion 16 provided with the connecting hole 11 of the connecting pipes 1a and 1b is configured in a cylindrical shape.
However, they are configured such that they are fitted into the cylindrical portions 31, 31 formed in the holding frame 32 in a mating manner by rotating each part separately, and a slight margin is provided in the fitting portions in the radial direction and the axial direction. As a result, the connecting pipes 1a and 1b are held in the box B in a free state over a small area.

In addition, the above-mentioned holding frame 32 includes the plug main body 2.
An engagement hole 34 for holding the cylindrical portion 3 in a connected state
1 and 31, and engages with an engaging portion 41 of a hook 4 provided on the plug body 2, which will be described later.

Next, the plug body 2 has a configuration as shown in FIGS. 3 to 5, and has a hose end H for connecting a flexible pipe at one end.
Two mutually independent flow paths are formed, each having a connecting cylinder part 21 at the other end, and each flow path has a second valve that moves in the axial direction of the connecting cylinder part 21 to open and close the flow path. The valve body 22 is inserted, and the valve shaft 23 protruding from the second valve body 22 faces the open end side of the connecting cylinder portion 21.

A connecting cylinder portion 2 protruding from one end of the plug body 2
1 and 21, a hook 4 protrudes, and an engaging portion 41 bent into a hook shape is formed at the tip thereof. It is disposed so as to be able to swing within a certain range in a certain direction, and is always urged in the return direction by a spring S within this swing range. Further, the hook 4 is held in a non-removal state by a pin P near its fulcrum, and the pin P implanted in the plug body 2 is located at the proximal end of the fulcrum of the hook 4. It penetrates the formed through hole 42.

Next, this hook 4 can be operated from the outside, and an operating shaft 5 whose tip is in contact with the base end of the hook 4 is movable in substantially the same direction as the swinging direction of the hook 4. The operating portion 51 thereof protrudes to the outside of the plug body 2. Therefore, when the operating portion 51 is pushed in, the hook 4 is brought into a state in which it is swung by a certain angle from its initial position.

The relationship between the engaging part 41 formed at the tip of the hook 4 and the engaging hole 34 formed in the mounting piece 33 is set in a predetermined manner, and the side of the engaging hole 34 that engages with the engaging part 41 is set in a predetermined manner. The edges are sloped surfaces, and as shown in FIG.
When the connector main body 1 and the plug main body 2 are brought into a connected state by pushing the plug into the
It engages with the side edge of No. 4, and both are held in a non-slip state.

Furthermore, when connecting the outgoing path and the incoming path on the heat source device N side, the connecting portions of these outgoing path and incoming path can be rotated around the axes of the connection holes 11, 11, so that the outgoing path and the incoming path on the heat source device N side can be rotated. Easy to connect.

When the operating portion 51 is pushed in from this state, the engagement portion 41 and the engagement hole 34 are disengaged, and the plug body 2 can be removed from the connector body 1.

In the above embodiment, the fitting portion between the connecting portion 16 and the cylindrical portion 31 is rotated and paired, but the pair may be formed as a spherical pair. In this case, the connection part 16
The outer circumferential surface of the cylinder portion 31 is spherical, and the inner circumferential surface of the other cylindrical portion 31 is concave spherical.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of an embodiment of the present invention, Fig. 2 is a sectional view of the connector main body 1, Fig. 3 is a sectional view taken along the line XX, Fig. 4 is a sectional view taken along the Y-Y line, and Fig. 5 is a sectional view of the hook. 4 is a perspective view, and FIG. 6 is an explanatory diagram of a conventional example. In the figures, 1... connection tool body, 11, 11... connection hole, 2... plug body, 21, 21... connection cylinder part, 1a, 1b... Connection pipe, A... Terminal equipment, B
...Box, N...Heat source device.

Claims (1)

[Scope of utility model registration request] A pair of connection holes 11, 11 provided in the connector main body 1 connected to the heat source device N and the connection cylinder parts 21, 21 of the plug main body 2 connected to the terminal device A are fitted and connected. In the connection device, the connection device main body 1 is housed in a front-open box B, and the connection device main body 1 is composed of independent L-shaped connection pipes 1a and 1b, and the box B of the connection pipe 1a is The outgoing path on the heat source device N side is connected to the connecting portion parallel to the bottom wall, and the returning path on the heat source device N side is connected to the connecting portion parallel to the bottom wall of box B of the other connecting pipe 1b, and the connecting pipe 1a, A connecting hole 11 is provided at each end located at the opening of box B of 1b, and these connecting tubes 1a and 1b are rotated in the rotational direction around the connecting hole 11, in the axial direction of the connecting hole 11, and in this direction. A two-channel connector held in box B so that a small area is free in the perpendicular direction.