JPH06201227A - Device for fixing pipe to tanks and the like - Google Patents

Abstract

(57) [Summary] [Purpose] Pipes can be easily and reliably attached to tanks. [Constitution] A cylindrical insertion part (3) having an annular projection (1) formed on the outer periphery from the tip, and an inner diameter equal to the outer diameter of the insertion part (3) and a window hole ( 5) is formed and the inner surface of the peripheral wall is provided with a stepped portion (4b) with which the annular projection (1) of the insertion portion (3) abuts, and a cylindrical receiving portion (6) and a window hole.
Fitted so as to project inward from (5) and the inner surface (7a)
Elasticity having two arcuate legs (7) that are inclined surfaces that spread toward the insertion side of the insertion part (3) and a head (8) integrally provided between the ends of the arcuate legs (7) It is equipped with a stopper (10) made of material, and the insertion part (3) is airtightly inserted into the socket part (6) in which the stopper (10) is detachably mounted, so that the insertion part (3) The annular protrusion (1) is located between the step (4b) on the inner circumference of the socket (6) and the arcuate leg (7) of the stopper (10) fitted in the window hole (5) of the socket (6). It is sandwiched and fixed, and the pipe (12) is detachably attached to the tanks (11) through the insertion portion (3) and the receiving portion (6).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe mounting device for tanks. In the present specification, “tanks” includes a liquid receiver, a vapor reservoir, a muffling tank, and a device and a container for storing gas or liquid.

[0002]

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

Further, as shown in FIG. 12, a refrigerant inflow pipe (42) and a refrigerant outflow pipe (43) are provided above the liquid receiver (41).
There is also one in which each of them is connected via block joints (44) and (45) (JP-A-61-195256). In this case, the block joints (44) and (45) can be inserted into the mounting holes (48) at the top of the liquid receiver (41) by using bolts (46) and (47) from above, respectively, using a tool, The pipes (42) (43) for the inflow of the refrigerant and the pipes for the outflow of the refrigerant are attached.

[0004]

In the above case, the number of constituent members is large, and when mounting the pipes on both sides of the head (32), the operator manually turns the cap nuts (37) to finally operate the tool. There is a problem that it is complicated in the mounting work or the reverse removal work, such as the need to use and tighten.

Further, in the latter, although the work is simplified as compared with the case of mounting the pipe by the above-mentioned cap nut, the bolt (4
6) A tool is indispensable for the screwing work or the removing work of (47), and the efficiency of pipe installation work in this receiver cannot be expected sufficiently.

It is an object of the present invention to provide a pipe mounting device capable of easily and surely mounting or dismounting pipes on tanks.

[0007]

A pipe mounting device of the present invention has a cylindrical insertion portion having an annular projection formed on the outer periphery from the tip and an inner diameter equal to the outer diameter of the insertion portion and a peripheral wall. Is formed with a window hole and a stepped portion with which the annular projection of the insertion portion abuts is provided on the inner surface of the peripheral wall, and a cylindrical receiving portion is fitted so as to project inward from the window hole. A stopper made of an elastic material having two arcuate legs whose inner surface is an inclined surface that spreads toward the insertion side of the insertion part and a head integrally provided between the ends of the arcuate legs is provided. When the insertion part is airtightly inserted into the receiving part that is detachably attached, the circular protrusion of the insertion part causes the annular protrusion of the insertion part to fit in the stepped portion of the inner periphery of the receiving part and the window hole of the receiving part. It is sandwiched between the legs and fixed, and the pipes are connected to the tanks through these insertion parts and sockets. Those attached detachably.

[0008]

In the pipe mounting device of the present invention, when the insertion portion is inserted into the receiving portion, the annular projection of the insertion portion easily moves along the inner surface of the arcuate leg of the stopper, which is an inclined surface that spreads toward the insertion side of the insertion portion. As a result, the annular projection is tightly fitted without a gap between the stepped portion on the inner circumference of the receiving portion and the arcuate leg of the stopper.
The pipe is securely attached to the tanks by fitting the annular projection into the receiving portion.

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

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments for mounting pipes to tanks using the pipe mounting apparatus of the present invention 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 mounting a pipe in a liquid receiver, and both sides of the head (20a) of the liquid receiver (20) are shown. The liquid introduction part (22) and the liquid discharge part (23) are used as the insertion part (3), while the receiving part (6) is provided at the tip of the pipe (24). The tip end of the pipe (24) is expanded and fixed integrally to the inner surface of the base end side of the receiving part (6). Further, a stopper (10) is attached to the window hole (5) of the receiving portion (6). The details of each of these parts are as described below.

That is, an annular protrusion (1) is formed on the outer circumference from the tip.
Is formed and O is located on the tip side of the annular protrusion (1).
A cylindrical insertion part (3) in which the ring (2) is fitted, and an inner diameter that is the same as the outer diameter of the insertion part (3) and two parts are left in the circumferential direction with a part of the peripheral wall left. A cylindrical receiving part (6) having a window hole (5) and a step (4b) on the inner surface of the peripheral wall against which the annular projection (1) of the insertion part (3) abuts, The inner surface is fitted so that it protrudes inward from each window hole (5)
Two arcuate legs (7) whose (7a) extends toward the insertion side of the insertion part (3) and a head (8) integrally provided between the ends of the arcuate legs (7) And a pipe made of synthetic resin having a retaining engagement portion (9) formed on the inner surface of the base of each arcuate leg (7), and the stopper (10) is detachably attached to the pipe. (24) Liquid inlet (22) in the mouthpiece (6) at the tip
By inserting the insertion part (3) of the liquid discharge part (23) and the liquid discharge part (23) in an airtight manner, the annular protrusion (1) of the insertion part (3) and the step part (4b) of the inner periphery of the receiving part (6) are received. It is fixed by being sandwiched between the arcuate legs (7) of the stopper (10) fitted in the window hole (5) of the mouth (6), and these are inserted through the insertion part (3) and the socket (6). Pipe (24)
Are detachably 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 portion (4b) is formed 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, in which annular projections (1) are provided on the base end sides of the liquid introduction part (22) and the liquid discharge part (23). The annular protrusion (1) is fitted in the head (20a).

[Embodiment 2] As shown in FIGS. 4 and 5, in the head (20a) of the liquid receiver (20), the liquid introducing portion (22) and the liquid discharging portion (23) are provided upwards, The liquid introducing section (22) and the liquid discharging section (23) are respectively used as the receiving section (6). And, an insertion part (3) is formed at the tip of the pipe (24), and the insertion part (3) is on the liquid introduction part (22) and liquid discharge part (23) side to which the stopper (10) is attached in advance. Mouth of
The pipe (24) is attached by being inserted into (6).

In this embodiment, the liquid introducing part (22) and the liquid discharging 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, it is easy to manufacture as a whole. Further, the two pipes (24) can be rotated in the arrow direction according to the mounting conditions of the liquid receiver (20).

[Embodiment 3] As shown in FIG. 6, the liquid receiver (2
In the head (20a) of (0), the liquid introduction part (22) and the liquid discharge part (23) are formed sideways, and these liquid introduction parts (22)
The liquid discharge part (23) and the liquid discharge part (23) are used as the receiving part (6). And, an insertion part (3) is formed at the tip of the pipe (24), and the insertion part (3) is on the liquid introduction part (22) and liquid discharge part (23) side to which the stopper (10) is attached in advance. The pipe (24) is attached by being inserted into the socket (6) of the. The head (20a) is welded to the tank (25).

FIG. 7 shows a modification of the above embodiment, in which a recess (21a) is formed between the liquid introducing part (22) and the liquid discharging part (23) on both sides of the head (20a), and the liquid receiver (20 ) Is configured to be kept low.

[Embodiment 4] As shown in FIG.
The configuration of the mounting device of 4) is the same as that of the third embodiment,
The sideways liquid introducing part (22) and liquid discharging part (23) serve as the receiving part (6). And, an insertion part (3) is formed at the tip of the pipe (24), and the insertion part (3) is on the liquid introduction part (22) and liquid discharge part (23) side to which the stopper (10) is attached in advance. Of the pipe by being inserted into the socket (6) of
(24) is installed.

Further, in this embodiment, the head (21) and the suction pipe (26) are integrally formed by aluminum die-gust, and can be detachably attached to the tank portion (25) in a liquid-tight manner via the O-ring (27). To be attached to.

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

A cylindrical insertion portion (3) having an annular projection (1) formed on the outer periphery and an O-ring (2) fitted on the tip side of the annular projection (1), and an insertion portion (3 ) Has the same inner diameter as the outer diameter, and the peripheral wall (4a) has two window holes (5) formed in the circumferential direction, leaving a part of it, and is inserted into the inner surface of the peripheral wall (4a). Step (4b) with which the annular projection (1) of the part (3) abuts
With a cylindrical receiving part (6) provided with a hole and the inside of each window hole (5) so as to project inward and the inner surface is an insertion part.
(2) Two arcuate legs that have an inclined surface that expands to the insertion side
(7) and a head (8) integrally provided between the ends of the arcuate leg (7) and a retaining engagement part (9) formed on the inner surface of the base of each arcuate leg (7). Is provided with stoppers (10) made of an elastic material, and insertion portions (3) are provided at both ends of the noise reduction tank (11). Further, a receiving portion (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 above-mentioned sound deadening tank (11) is inserted into one end, while the other end side The insertion part (3) provided at the tip of the pipe (12) is inserted into the tube. Then, the annular protrusion (1) of each insertion portion (3) and the stopper (10) are inserted into the window holes (5) in advance so that the annular protrusion (1) of each insertion portion (3) and the stopper portion (10) are inserted. It is sandwiched between the arcuate legs (7) and fixed.

A fluid passageway (6) is provided between the window holes (5) of the receiving ports (6).
The charge valve (6b) that can close a) is screwed.

In the present embodiment, when replacing the muffling tank (11), the muffling tank (11) can be removed by simply removing the stoppers (10) at both ends of the muffling tank (11). Also, when installing the new noise reduction tank (11) again after attaching the stopper (10), insert the insertion parts (3) at both ends of the noise reduction tank (11) into the socket (6) on the pipe (12) side. Just insert it. Moreover, if the charge valve (6b) is turned to close the fluid passage (6a) before replacing the muffling tank (11), the refrigerant is prevented from being discharged. That is, according to the present embodiment, the sound deadening tank (11) can be easily replaced while preventing the refrigerant from being discharged.

[0025]

According to the pipe mounting apparatus of the present invention, the pipes to the tanks can be immediately inserted by inserting the insertion portion provided on one of the tanks side where the pipes are mounted and the pipe side into the other receptacle. Can be installed. Further, even when removing the tanks from the piping system, the pipes can be easily removed from the tanks only by removing the stopper. That is, according to the pipe attaching device of the present invention, the pipes can be easily and reliably attached to and detached from the tanks, and the work efficiency thereof can be greatly increased.

Further, since the pipe mounting device of the present invention has a simple structure itself, it can be applied to pipe mounting to various tanks.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of essential parts 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 cross-sectional view of essential parts showing a modified example of the pipe attaching device in FIG.

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

5 is a cross-sectional view of a main part of a head part by the pipe mounting device of FIG.

FIG. 6 is a cross-sectional view of essential parts showing still another embodiment of the pipe attaching device in the head of the liquid receiver.

FIG. 7 is a cross-sectional view of essential parts showing a modified example of the pipe attaching device of FIG.

FIG. 8 is an exploded front view showing another embodiment of the pipe mounting 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 noise reduction tank.

FIG. 10 is a cross-sectional view of essential parts 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 the liquid receiver.

[Explanation of symbols]

 (1) Annular protrusion (3) Insertion part (4a) Circumferential wall (4b) Step part (5) Window hole (6) Receptacle part (7) Arcuate leg (8) Head part (10) Stopper (11) Tanks

Claims (1)

[Claims] 1. A cylindrical insertion part (3) having an annular projection (1) formed on the outer periphery from the tip, and an inner diameter equal to the outer diameter of the insertion part (3) and a window on the peripheral wall. A cylindrical socket (6) with a hole (5) and a step (4b) on the inner surface of the peripheral wall against which the annular projection (1) of the insert (3) abuts, and a window. It is fitted so that it protrudes inward from the hole (5) and the inner surface (7
a) has two arcuate legs (7) that are inclined surfaces that spread toward the insertion side of the insertion part (3) and a head (8) integrally provided between the ends of the arcuate legs (7). It is equipped with a stopper (10) made of elastic material, and the insertion part (3) is airtightly inserted into the receiving part (6) to which the stopper (10) is detachably mounted, so that the insertion part (3 ) Ring protrusion (1) is the step on the inner circumference of the socket (6)
(4b) and stopper (10) fitted in the window hole (5) of the socket (6)
Clamped between the arcuate legs (7) of the
A pipe attachment device in which a pipe (12) is detachably attached to a tank (11) via a (3) and a socket (6).