JP3054986B2 - Tank and pipe connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a device for connecting a tank and a pipe.
About the installation . In this specification, the term “tank ” includes a device, a container, and the like in which gas and liquid are stored, in addition to a liquid receiver, a vapor storage device, and a silencing tank.

[0002]

2. Description of the Related Art For example, when a pipe is attached to a liquid receiver, as shown in FIG. 11, a liquid introduction part (33) and a liquid discharge part (34) on both sides of a head (32) of the liquid receiver (31) are respectively provided. While a cylindrical male screw was formed, a cap nut (37) was fitted on the proximal end side of a pipe (36) having an annular projection (35) formed from the distal end. Then, the liquid introduction section (33) and the liquid discharge section
Insert pipes (36) into (34) and cap nuts
(37) is screwed into the external male screw to make the pipe (3
6) had been installed.

As shown in FIG. 12, a refrigerant inflow pipe (42) and a refrigerant outflow pipe (43) are provided above a liquid receiver (41).
Are connected via block joints (44) and (45), respectively (JP-A-61-195256). In this case, the block joints (44) and (45) are respectively inserted from above by inserting bolts (46) and (47) into the mounting holes (48) of the upper part of the receiver (41) using a tool. Pipes (42) and (43) for refrigerant inflow and refrigerant outflow are attached.

[0004]

In the above case, the number of components is increased, and when attaching the pipes on both sides of the head (32), the worker turns the cap nuts (37) by hand, and finally the tool is turned. There is a problem that the mounting work or the reverse removing work is complicated, for example, it is necessary to use and tighten it.

[0005] In the latter case, although the operation is simplified as compared with the pipe mounting using the cap nut, the bolt (4
6) A tool is indispensable for the screwing operation or the removing operation of (47), and it is not possible to expect a sufficient efficiency of the pipe mounting work in this receiver.

An object of the present invention, the tank and path that allows easy and reliable pipe mounting or removal for the tank
An object of the present invention is to provide a connection device for IP .

[0007]

The present invention as defined in claim 1
Are connected to pipes at the inlet and outlet of the tank, respectively.
Tank and pipe connection equipment
At the end, a cylindrical insertion part with an annular protrusion on the outer circumference is provided
The insertion part of the pipe is inserted into the entrance and the exit,
A cylindrical socket to which the insertion portion is fixed via a stopper
Are provided, and the receptacle is the same as the outer diameter of the insertion section.
It has the same inner diameter and has two window holes facing each other on the peripheral wall
The insertion part is located on the inner surface of the peripheral wall on the base side from the window hole.
There is a step where the annular projection abuts.
Is fitted in a state of protruding inward from the window
The surface tilts inward from the insertion side of the insertion section to the opposite side
Ends of two opposing arcuate legs with slanted slopes
The head is integrally provided between the two, and both arc-shaped legs are
It is made to elastically deform toward
Fit the arc-shaped leg into the window of the socket, and open the tip of the socket.
Insert the insertion part from the
Abutting the slopes of the legs, so that both arc-shaped legs
Insert the insertion part into the base of the socket while elastically deforming
By tightening, the annular projection of the insertion part
Passes through and abuts the step of the socket, and both arc-shaped legs
Return to the shape of
It is designed so that the start can be pinched.

[0008] The present invention according to claim 2 provides an inlet part of a tank.
Tank and pie where the pipes are connected to the
In the inlet and outlet sections of the connection
A cylindrical insertion part with a projection is provided, and the tip of the pipe
The insertion part is inserted into the part, and the insertion part is
A fixed cylindrical receiving portion is provided respectively,
The receiving part has the same inner diameter as the outer diameter of the insertion part and the peripheral wall has
Two windows are drilled facing each other and
There is a step on the inner surface of the peripheral wall on the side of the
Is provided, and the stopper fits inwardly from the window hole
And the inner surface faces from the insertion side of the insertion section to the opposite side.
The two opposing surfaces that were once made inwardly inclined
The head is provided integrally between the ends of the arc-shaped legs,
Each leg is elastically deformed outward,
Fit both arc-shaped legs of the stopper into the window hole of the socket,
Insert the insertion section through the opening at the tip of the section, and slide the annular projection.
Abutting the inclined surfaces of both arc-shaped legs of the topper,
While elastically deforming them outward,
By inserting it into the base side, the annular projection of the insertion part
It passes between the two arcuate legs and abuts the step of the socket.
Both arc-shaped legs return to the original shape, and both arc-shaped legs and step
The annular projection of the insertion part is made to be pinched and stopped
Things.

[0009]

The tank and the pie according to any of the above-described present invention are provided.
Also in connection device flop, when inserting the insertion portion into the socket portion, the insertion portion of the annular projection receiving opening section with is not readily enter inward along an arc Joashi inner surface of the stopper that is the inclined slope As a result of the contact with the step on the inner surface, the annular projection fits tightly without any gap between the step on the inner periphery of the receptacle and the arcuate leg of the stopper. By fitting this annular projection into the socket,
The tank and the pipe are easily and securely connected .

On the other hand, even when removing the pipe, it can be performed immediately by simply removing the stopper from the window hole.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A tank and a pipe are connected using the connecting device of the present invention.
Various embodiments for connection will be described with reference to the drawings.

Embodiment 1 FIGS. 1 and 2 show an embodiment in which the pipe mounting device of the present invention is applied to pipe mounting in a liquid receiver.
The head (20a) of (20) has a liquid introduction part (22) and a liquid discharge part (23) on both sides as an insertion part (3), while a receiving part (6) is provided at the tip of a pipe (24). I have. The distal end of the pipe (24) is expanded and integrally fixed to the inner surface on the base end side of the socket (6). A stopper (10) is attached to the window (5) of the socket (6). Details of these components are as described below.

That is, an annular projection (1) is provided on the outer periphery from the tip.
Are formed and O is located on the tip side from the annular projection (1).
A cylindrical insertion portion (3) in which the ring (2) is fitted, and two in the circumferential direction having the same inner diameter as the outer diameter of the insertion portion (3) and leaving a part of the peripheral wall. A cylindrical receiving portion (6) having a window hole (5) and a step (4b) provided on the inner surface of the peripheral wall with which the annular projection (1) of the insertion portion (3) abuts; It is fitted so that it protrudes inward from each window hole (5) and
(7a) two arcuate legs (7) having inclined surfaces extending toward the insertion side of the insertion portion (3), and a head (8) integrally provided between the ends of the arcuate legs (7). And a synthetic resin stopper (10) having a retaining engagement portion (9) formed on the inner surface of the base of each arc-shaped leg (7), and the stopper (10) is detachably mounted. (24) Liquid inlet (22) in the receptacle (6) at the tip
When the insertion portion (3) of the liquid discharge portion (23) is airtightly inserted, the annular projection (1) of the insertion portion (3) is received by the step (4b) on the inner periphery of the receiving portion (6). The stopper (10) fitted in the window (5) of the mouth (6) is fixed between the arc-shaped legs (7) of the stopper (10), and is inserted through the insertion part (3) and the receptacle (6). Pipe (24)
Are removably attached to the liquid introduction part (22) and the liquid discharge part (23) on both sides of the head (20a) of the liquid receiver (20).

In the above embodiment, the step (4b) is constituted by the tip of the expanded pipe (24).

FIG. 3 shows a modified example of the pipe mounting device shown in FIGS. 1 and 2, wherein an annular projection (1) is also provided on the base end side of the liquid introduction part (22) and the liquid discharge part (23). The annular projection (1) is configured to be fitted into the head (20a).

Embodiment 2 As shown in FIGS. 4 and 5, in a head (20a) of a liquid receiver (20), a liquid introduction part (22) and a liquid discharge part (23) are provided upward. These liquid inlet (22) and liquid outlet (2
3) is a receiving part (6). And the pipe
An insertion portion (3) is formed at the tip of (24), and this insertion portion (3) is formed.
The pipe (24) is attached by being inserted into the liquid inlet (22), which is provided with the stopper (10) in advance, and the receptacle (6) on the side of the liquid outlet (23).

In this embodiment, the liquid introduction part (22) and the liquid discharge part (23) on both sides of the head (20a) are used as the receiving part (6), and the pipe (24) is integrally attached to the part. For,
Since the number of members is reduced and the window hole (5) can be cut at the same time when the head (20a) is formed, the manufacture is easy as a whole. Further, the two pipes (24) are rotatable in the direction of the arrow according to the mounting condition of the receiver (20).

Embodiment 3 As shown in FIG. 6, in the head (20a) of the liquid receiver (20), a liquid introduction part (22) and a liquid discharge part (23) are formed in a horizontal direction. The part (22) and the liquid discharge part (23) are each a receiving part (6). And the pipe (24)
An insertion part (3) is formed at the tip of the, and this insertion part (3)
By being inserted into the liquid inlet (22) and the liquid outlet (23) side receiving port (6) on which the stopper (10) is mounted in advance,
Installation of the pipe (24) is performed. The head (20a) is welded to the tank (25).

FIG. 7 shows a modification of the above embodiment, in which a depression (21a) is formed between the liquid introduction part (22) and the liquid discharge part (23) on both sides of the head (20a), and the liquid receiver (20) is formed. ) Height is kept low.

[Embodiment 4] As shown in FIG. 8, the structure of the pipe (24) mounting device is the same as that of the above-mentioned Embodiment 3, and the liquid introduction part (22) and the liquid discharge part (23) are oriented horizontally. ) Are the receiving portions (6). An insertion portion (3) is formed at the end of the pipe (24). The insertion portion (3) is connected to the liquid introduction portion (22) and the liquid discharge portion (23) on which the stopper (10) is mounted in advance. The pipe (24) is attached by being inserted into the receiving portion (6).

In this embodiment, the head (21) and the suction pipe (26) are integrally formed of aluminum die gust, and can be detachably attached to the tank (25) through an O-ring (27) in a liquid-tight manner. It is attached to.

[Embodiment 5] FIGS. 9 and 10 show an embodiment in which a sound deadening tank is arranged between pipes in an air conditioner of an automobile.

A cylindrical insertion portion (3) having an annular projection (1) formed on the outer periphery thereof and an O-ring (2) fitted on the distal end side of the annular projection (1); ) Has the same inner diameter as the outer diameter of the peripheral wall (4a), and has two window holes (5) formed in the circumferential direction except a part of the peripheral wall (4a), and is inserted into the inner surface of the peripheral wall (4a). Step (4b) where annular projection (1) of section (3) abuts
And a cylindrical receiving portion (6) provided with a hole, and fitted into each window hole (5) so as to protrude inward, and the inner surface is inserted.
(3) Two arcuate legs with inclined surfaces extending toward the insertion side
(7) A head (8) integrally provided between the ends of the arc-shaped legs (7) and a retaining engagement portion (9) formed on the inner surface of the base of each arc-shaped leg (7). And a stopper (10) made of an elastic material provided with an insertion portion (3) at both ends of the silencing tank (11). A receiving port (6) is provided on each pipe (12) side. The receiving part (6) is provided with a window hole (5) and a step part (4b) at both ends, and the insertion part (3) of the silencing tank (11) is inserted at one end, while the other end is provided. An insertion part (3) provided at the tip of the pipe (12) is inserted into the pipe. Then, the annular projection (1) of each insertion portion (3) is brought into contact with the step (4b) of each socket (6) and the stopper (10) by the stopper (10) previously fitted in each window hole (5). ) Are fixed between the arc-shaped legs (7).

A fluid passage (6) is provided between the window holes (5) of each of the receiving portions (6).
A charge valve (6b) capable of closing a) is screw-fitted.

In this embodiment, when replacing the silencing tank (11), the silencing tank (11) can be removed simply by removing the stoppers (10) at both ends of the silencing tank (11). Also, when installing a new silencing tank (11), after attaching the stopper (10) again, insert the insertion parts (3) at both ends of the silencing tank (11) into the socket (6) on the pipe (12) side. Just insert it. In addition, if the fluid valve (6a) is closed by turning the charge valve (6b) before replacing the silencing tank (11), the discharge of the refrigerant is prevented. That is, according to the present embodiment, it is possible to easily replace the silencing tank (11) while preventing the release of the refrigerant.

[0026]

According to the connecting device for a tank and a pipe of the present invention, the insertion part provided on one of the tank side and the pipe side where the pipe is to be mounted is inserted into the other receiving part, and the tank can be immediately connected to the tank . Pipe connection can be made. Further, even against the removal of the tank from the piping system, removal of the tank or these pipes simply removing the stopper it is to perform easily. That is, according to the connection device between the tank and the pipe of the present invention , the pipe can be easily and reliably attached to and detached from the tank,
The work efficiency can be greatly increased.

The connecting device of the present invention has a simple structure and can be applied to pipe mounting to various tanks.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing an embodiment of a pipe mounting device in a head of a liquid receiver.

FIG. 2 is a partial perspective view of the pipe mounting device in FIG.

FIG. 3 is a sectional view of a main part showing a modified example of the pipe mounting device in FIG. 1;

FIG. 4 is an exploded perspective view showing another embodiment of the pipe mounting device in the head of the liquid receiver.

FIG. 5 is a sectional view of a main part of a head unit by the pipe mounting device of FIG. 4;

FIG. 6 is a sectional view of a main part showing still another embodiment of the pipe mounting device in the head of the liquid receiver.

FIG. 7 is a sectional view of a main part showing a modified example of the pipe mounting device of FIG. 6;

FIG. 8 is an exploded front view showing another embodiment of the pipe attaching device in the liquid receiver.

FIG. 9 is an exploded perspective view showing an application example of the pipe mounting device of the present invention to a sound deadening tank.

FIG. 10 is a cross-sectional view of a main part showing a mounted state of a pipe.

FIG. 11 is an exploded front view showing a conventional example of a liquid receiver.

FIG. 12 is a cross-sectional view showing another conventional example of a liquid receiver.

[Explanation of symbols]

(1) an annular projection (3) insertion section (4a) the peripheral wall (4b) stepped portion (5) window hole (6) the mouth part (7) arc Joashi (8) the head (10) a stopper (11) tank

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-20670 (JP, A) JP-A-6-159575 (JP, A) JP-A-54-73516 (JP, U) JP-A-1 146091 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F25B 41/00 F16L 37/14

Claims (2)

(57) [Claims] 1. An inlet and an outlet of a tank are provided with respective
In the tank and pipe connection device to which the pipe is connected,
Cylindrical shape with an annular projection (1) on the outer circumference at the tip of the pipe
Insertion section (3) is provided, and pipes are provided at the inlet and outlet.
The insertion portion (3) is inserted, and the insertion portion is inserted through the stopper (10).
(3) Each has a cylindrical socket (6) to which is fixed.
The inlet (6) has the same inside diameter as the outside diameter of the insertion section (3).
And two perforations (5) are made in the peripheral wall
The insertion hole is located on the inner surface of the peripheral wall closer to the base than the window hole (5).
A step (4b) is provided for contacting the annular projection (1) of (3).
And the stopper (10) projects inward from the window (5) in the socket (6).
The inner surface (7a) is inserted into the extended state and the inner surface (7a) is
From the slope to the other side
The head (8) is located between the ends of two opposing arcuate legs (7).
The two arc-shaped legs (7) are respectively
The two arcs of the stopper (10)
Insert the leg (7) into the window (5) of the socket (6),
Insert the insertion part (3) through the opening at the tip of (6), and
Abutment (1) against the inclined surfaces of both arc-shaped legs (7) of stopper (10)
To elastically deform both arc-shaped legs (7) outward.
While inserting the insertion part (3) into the base side of the socket part (6).
As a result, the annular projection (1) of the insertion section (3) is
(7) When passing through the gap and contacting the step (4b) of the receptacle (6),
The two arcuate legs (7) return to their original shape,
(7) The annular projection (1) of the insertion part (3) is pinched between the step (4b) and the step (4b).
Connection between tank and pipe
Place. 2. A tank is provided at each of the inlet and outlet of the tank.
In the tank and pipe connection device to which the pipe is connected,
Cylindrical shape with an annular protrusion (1) on the outer circumference at the inlet and outlet
An insertion part (3) is provided at the end of the pipe.
(3) is inserted, and the insertion portion (3) is inserted through the stopper (10).
A fixed cylindrical socket (6) is provided for each.
The receiving part (6) has the same inner diameter as the outer diameter of the insertion part (3).
In addition, two window holes (5) are opened in the surrounding wall facing each other.
Along with the window hole (5) The inside of the insertion part (3)
A step (4b) is provided for the annular projection (1) to come into contact with.
The topper (10) is fitted into the window hole (5) so as to protrude inward.
And the inner surface (7a) is the insertion part (3) From the insertion side to the opposite side
The two opposing surfaces that were once made inwardly inclined
A head (8) is integrally provided between the ends of the arc-shaped legs (7),
Both arc-shaped legs (7) are now elastically deformed outward.
The two arc-shaped legs (7) of the stopper (10) are connected to the socket (6).
 Into the window hole (5) of the
Insert the insertion part (3) and insert the annular projection (1) into the stopper (10).
Abutting against the inclined surfaces of both arcuate legs (7)
While elastically deforming (7) outward, insert part (3)
By inserting it into the base of the socket (6),
The annular projection (1) of (3) passes between both arcuate legs (7) and
Abuts the step (4b) of the section (6) and the two arcuate legs (7)
Return to the shape of the above, insert the two arcuate legs (7) and the step (4b)
The annular projection (1) of (3) is pinched.
Connecting device for tank and pipe.