JP2000220779A - Connecting member and pushing member for connecting fluid pipes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrict the free movement of a connecting member along a fluid pipe during the connecting work by providing an insertion part for insertion of the fluid pipe and a movement restricting means for restricting the movement of the connecting member along the fluid pipe in the condition that the fluid pipe is inserted. SOLUTION: An annular recessed groove 1b is formed in the inner peripheral wall provided in a lower part of a connecting member 1, and a ring plate-like free movement restricting member 2 is fitted in the recessed groove 1b. At the time of connecting a fluid pipe 11 to a joint 23, immediately before fitting the fluid pipe 11 on a connecting cylinder part 23a of the joint 23, since the free movement restricting member 2 of the connecting member 1 previously fitted on the fluid pipe 11 elastically pressure-contacts with the peripheral wall of the fluid pipe 11 and has the holding force and the sliding resistance for restricting the free movement of the connecting member, the connecting member 1 can be held at a desirable position of the fluid pipe 11 without generating a fall. Consequently, lowering of the working efficiency due to a fall of the connecting member 1 into a sheath 12 can be prevented without holding the connecting member 1 with a hand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid pipe,
It relates to a connecting member and a pressing member for connecting a fluid pipe to be connected to the connected body by being sandwiched between the connected bodies such as a header, and in particular, during the connection work, due to its own weight or the like.
The present invention relates to a connecting member and a pressing member for connecting a fluid pipe, which enhances work efficiency by suppressing free movement such as dropping along a fluid pipe inserted therein.

[0002]

2. Description of the Related Art Conventionally, as a connecting member for firmly connecting a fluid pipe to a connected body such as a joint, for example, Japanese Patent Application No.
FIG.
This will be described with reference to FIGS.

[0003] In the figure, a header 21 is configured such that a plurality of fluid pipes 11 are connected to a connected portion 22 via a joint 23. The sheath tube 12 protects the fluid tube 11. Further, the cylindrical moving sleeve 3 serves as a connecting member for firmly connecting the fluid pipe 11. In order to connect the fluid pipe 11 to the connected part 22, the fluid pipe 11
The moving sleeve 3 is externally inserted into the connection end of the joint 23, and the fluid pipe 11 is forcibly fitted into the connection cylinder 23a of the joint 23 as shown in FIG.

[0004] Next, the moving sleeve 3 is forcibly connected to the joint 23.
When the fluid pipe 11 is moved to the connecting cylinder 23a, the distal end of the fluid pipe 11 is crushed, and the fluid pipe 11 is strongly pinched by the connecting cylinder 23a of the joint 23 and the moving sleeve 3, thereby forming the joint as shown in FIG. 23 is firmly connected.

As a conventional connecting member 1 for firmly connecting the fluid pipe 11 to an elbow in a piping box provided on the back side of a wall material for mounting a faucet or the like, for example, Japanese Patent Laid-Open No. No. 9187, which will be described with reference to FIGS.

In the figure, a piping box 24 arranged on the front side of a wall member 27 is formed in a substantially box shape, and an elbow 25 is housed inside the piping box 24. Can be attached. The elbow 25 has a flange 25a formed on the outer periphery of the elbow 25, with a contact portion 24a provided at an opening of the piping box 24 and a fixing ring 26 screwed into the opening of the piping box 24. By pinching, the piping box 24
Mounted inside.

In order to connect the fluid pipe 11 to the elbow 25, as shown in FIG. 17, the fluid pipe 11 is drawn out into the room, which is the front side of the wall material 27, and the connecting member 1 is connected to the distal end of the fluid pipe 11. Is extrapolated from the moving sleeve 3 and the cap nut 4. Next, as shown in FIG. 18, the distal end of the fluid pipe 11 is forcibly fitted into a connection cylinder 25b of an elbow 25 as a connected body. Next, as shown in FIG. 19, when the cap nut 4 is screwed into the male screw portion 25c of the elbow 25, the moving sleeve 3 is accordingly connected to the connecting tubular portion 25b of the elbow 25.
Since the fluid pipe 11 moves to the side, the distal end of the fluid pipe 11 is crushed.

[0008]

However, in the operation of connecting the fluid pipe 11 to a connected body such as the joint 23 or the elbow 25 using such a conventional connecting member, a connecting member for firmly tightening the connecting member. It is necessary to previously fit the moving sleeve 3 and the cap nut 4 to the connection end of the fluid pipe 11 in advance, but the moving sleeve 3 and the cap nut 4 are moved toward the connected body while the connecting sleeve of the joint 23 is moved. The fluid pipe 11 is sandwiched between the fluid pipe 11 and the connecting pipe section 25b of the elbow 25. The inner diameter of the fluid pipe 11 is slightly larger than the outer diameter of the fluid pipe 11 excluding the connection end. 11 freely moves along its length.

Therefore, if the moving sleeve 3 and the cap nut 4 are not held during the connection operation, the moving sleeve 3 and the cap nut 4 move along the fluid pipe 11 by their own weight, and Or drop into the piping box 2
4 falls into the opening. When the fluid pipe 11 is piped so as to hang downward from the ceiling side, the moving sleeve 3 and the cap nut 4 may come off from the pipe end, or the pipe end may be flared, chamfered, peeled, or the like. When performing the processing, the moving sleeve 3 and the cap nut 4 drop to the part of the pipe end where the processing is performed under their own weight, which hinders the processing of this part. As a result, the work efficiency has been reduced.

In view of the above, the present invention provides a connection of a fluid pipe which can suppress the free movement along the fluid pipe inserted therein during the operation of connecting the fluid pipe to the object to be connected, thereby improving the working efficiency. It is an object to provide a member and a pressing member.

[0011]

A connecting member for connecting a fluid pipe according to claim 1 is a connecting member for sandwiching a fluid pipe between the fluid pipe and a connected body and connecting the fluid pipe to the connected body. The apparatus includes an insertion portion through which a pipe is inserted, and a movement suppressing unit that suppresses movement along the fluid pipe in a state where the fluid pipe is inserted.

According to a second aspect of the present invention, in the connecting member for connecting a fluid pipe, the movement suppressing means according to the first aspect prevents only the movement of the connecting member itself by its own weight, and does not hinder the movement by hand.

According to a third aspect of the present invention, there is provided a connecting member for connecting a fluid pipe according to the first or second aspect of the present invention,
It is formed of a metal material.

According to a fourth aspect of the present invention, there is provided a connecting member for connecting a fluid pipe, wherein the movement suppressing means according to any one of the first to third aspects is configured such that the movement suppressing means is formed by its own elasticity when the fluid pipe is inserted. It is constituted by a pressing member for pressing the outer surface of the fluid pipe.

According to a fifth aspect of the present invention, there is provided a connection member for connecting a fluid pipe, wherein the movement suppressing means according to any one of the first to fourth aspects is provided on an inner surface of the insertion portion.

According to a sixth aspect of the present invention, there is provided a connecting member for connecting a fluid pipe, wherein the fluid pipe according to any one of the first to fifth aspects is inserted into a connecting cylinder provided on a body to be connected. On the other hand, it moves in the axial direction and tightens the fluid pipe externally inserted into the connecting cylinder with the connecting cylinder.

According to a seventh aspect of the present invention, the pressing member for connecting the fluid pipe is attached to a connecting member for connecting the fluid pipe to the connected body by tightening the fluid pipe with the connected body. It is provided with a pressing portion that presses the fluid pipe to prevent the connection member from moving along the fluid pipe.

According to an eighth aspect of the present invention, there is provided a pressing member for connecting a fluid pipe, wherein the pressing member according to the seventh aspect is formed in a ring shape and has a projecting portion projecting from the inner surface of the insertion portion.

A ninth aspect of the present invention provides a pressing member for connecting a fluid pipe, wherein the pressing member according to the seventh or eighth aspect is formed of a synthetic resin.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, a joint 23 as a body to be connected has one end connected to a header or the like, and the fluid pipe 11 connected to a connection cylindrical portion 23a on the other end side. The connection member 1 is for firmly connecting the fluid pipe 11 to the connection cylinder 23a, has a cylindrical shape, and has the fluid pipe 11 therein.
An insertion portion 1a through which the fluid pipe 11 is inserted is formed, is externally fitted to the distal end of the fluid pipe 11, and sandwiches the fluid pipe 11 between the connection member 1 and the connection cylinder 23a of the joint 23. A concave groove 1b is formed in an annular shape in an inner peripheral wall at a lower portion of the connection member 1, and a ring plate-shaped free movement suppressing member 2 is formed in the concave groove 1b.
Is fitted.

As shown in FIG. 4, the free movement suppressing member 2 has an insertion portion 2a into which the fluid pipe 11 is inserted, and protrudes toward the center at four locations at equal intervals in the circumferential direction. The distance between the opposed protrusions 2 b is slightly smaller than the outer diameter of the fluid pipe 11, and when the protrusion 2 b is fitted to the fluid pipe 11, the gap is pressed against the outer peripheral wall of the fluid pipe 11. It is supposed to.

FIG. 2 shows a state in which the free movement suppressing member 2 is fitted to the connecting member 1. The free movement suppressing member 2 is formed of an elastic material such as a synthetic resin, rubber, or metal, and can be mass-produced at low cost by punching with a press. However, the projecting portion 2b does not need to be limited to four places,
May be appropriately selected in consideration of the sliding resistance and the like. In short, it is possible to prevent the fluid pipe 11 from freely moving along the fluid pipe 11 due to its own weight or the like, and on the other hand, to increase the holding force on the fluid pipe 11 which can be easily moved by applying a forced force by hand. You only have to.

If the fluid pipe 11 is made of resin, it is better not to use a metal made of the free movement suppressing member 2 in order to prevent damage. When the free movement suppressing member 2 is made of rubber, the plasticizer or the like may deteriorate the fluid pipe 11. Therefore, when the fluid pipe 11 is made of resin,
Most preferably, the free movement suppressing member 2 is made of a synthetic resin such as polyethylene. Here, the free movement suppressing member 2 corresponds to the movement suppressing means of claims 1 to 6, and also corresponds to the pressing member of claims 7 to 9.

Next, the connection operation and the operation of the connection member and the pressing member of the present embodiment configured as described above will be described. In the connection work of the fluid pipe 11 to the joint 23, as shown in FIG. 1, immediately before the fluid pipe 11 is fitted to the connection tube portion 23 a of the joint 23, the connection member 1 previously fitted to the fluid pipe 11 is free. Since the movement suppressing member 2 elastically presses against the outer peripheral wall of the fluid pipe 11 and has a holding force and a sliding resistance for suppressing free movement, it is held at an arbitrary position of the fluid pipe 11 without falling. You. Therefore, even if the connecting member 1 is not held by hand, the connecting member 1 does not fall into the sheath tube 12 and the working efficiency is not reduced.

Next, the fluid pipe 11 is connected to the connecting cylinder 2 of the joint 23.
3a, the connecting member 1 is held in the fluid pipe 11 by the free movement suppressing member 2, but if a forcible force is applied by hand, the fluid pipe 11 is resistant to sliding resistance.
Can be moved to the connection tube portion 23a of the joint 23 without any trouble. Next, the connecting member 1 is connected to the connecting cylindrical portion 23a.
15, the fluid pipe 11 is sandwiched between the connecting cylinder 23a of the joint 23 and the inner peripheral wall of the connecting member 1, and the distal end portion is crushed and firmly moved, as shown in FIG. Connected.

It should be noted that the fluid pipe 11 is not directed upward,
When the connection member 1 is connected to the joint 23 by hanging from the ceiling side, the connection member 1 is prevented from dropping by its own weight and coming off the tip of the fluid pipe 11. Further, when processing such as flare processing, chamfering processing, and peeling processing is required for the pipe end, it is possible to prevent the connecting member 1 from dropping to the pipe end and hindering the processing operation.

The free movement suppressing member 2 has the shape shown in FIG. 4, but is not limited to this. For example, as shown in FIG. Part 2b or, as shown in FIG.
The string portion at the location may be formed as the protruding portion 2b. Although the free movement suppressing member 2 is fitted in the concave groove 1b of the inner peripheral wall of the connecting member 1, the concave groove 1b is provided on the lower end surface of the connecting member 1 as shown in FIG. The free movement suppressing member 2 provided with the protruding portion 2b may be attached. As shown in FIG. 8, a concave groove 1b is provided on the outer peripheral wall of the connecting member 1, and the protruding portion pressed by the fluid pipe 11 is provided. 2b
May be attached, and the means for attaching the free movement suppressing member 2 to the connecting member 1 is not limited.

Next, another embodiment of the present invention will be described with reference to FIG. FIG. 9 shows a state where the fluid pipe 11 is pulled out to the front side of the wall material in order to perform a work of connecting the fluid pipe 11 to an elbow 25 which is a connected object disposed in the same wiring box as that shown in FIG. In the figure, the elbow 25 has a fluid pipe 1
1 and a male screw part 25c to which the cap nut 4 is screwed. The connecting member 1 is screwed onto the male thread part 25c of the elbow 25, and the movable sleeve 3 is screwed into the male thread part 2c of the elbow 25.
The free movement suppressing member 2 is formed in a concave groove 4a formed on the inner peripheral wall of the reduced diameter portion in the lower portion of the cap nut 4 and formed with the cap nut 4 to be moved to the side 5c.
The free movement suppressing member 2 has the same shape as that of the above-described embodiment shown in FIGS.
And has a holding force on the fluid pipe 11 that can be easily moved by applying a forcible force.

Therefore, in the connection operation, the fluid pipe 1
1 is pulled out to the front side of the wall material, and the connection member 1 is externally fitted to the fluid pipe 11, and then the fluid pipe 11 is connected to the connection cylinder 25b of the elbow 25.
And the cap nut 4 of the connection member 1 is screwed to the male screw portion 25c of the elbow 25. As a result, the fluid pipe 11 is strongly pinched between the connection cylinder 25b of the elbow 25 and the moving sleeve 3 of the connection member 1, and is firmly connected to the connection cylinder 25b of the elbow 25.

Here, since the free movement suppressing member 2 is provided on the cap nut 4 of the connecting member 1, when the fluid pipe 11 is pulled out to the front side of the wall material (not shown) and the connecting member 1 is fitted outside, Since the free movement suppressing member 2 is pressed against the outer peripheral wall of the fluid pipe 11, the cap nut 4 can be held at an arbitrary position of the fluid pipe 11. Accordingly, the moving sleeve 3 in the cap nut 4 is also received by the cap nut 4, so that the moving sleeve 3 can be prevented from dropping along the fluid pipe 11 by its own weight. As a result, at the time of connection work to the elbow 25, the connection member 1 which is fitted to the fluid pipe 11 once drawn out to the front side of the wall material is prevented from falling by its own weight into the piping box on the back side of the wall material. be able to. Incidentally, the free movement suppressing member 2 is provided on the cap nut 4, but may be provided on the moving sleeve 3.

In this embodiment, the attachment of the free movement suppressing member 2 to the cap nut 4 is not limited to that shown in FIG. 9, but may be, for example, the same as that of the connecting member 1 shown in FIGS. The shape of the free movement suppressing member 2 can also be set arbitrarily.

Next, still another embodiment of the present invention will be described with reference to FIGS. In the figure, connection member 1
The annular portion 6a of the connection ring 6 is inserted through a notch formed in approximately half the circumference of the cylindrical wall of the cylindrical portion 5 and fitted into an annular groove formed in the inner wall of the cylindrical portion 5, and Two connecting rings 6 are inserted from opposite sides. The connection ring 6 is connected to the fluid pipe 1 as shown in FIG.
An annular portion 6a through which the first member 1 is inserted and a pressing portion 6b for clamping the fluid pipe 11 by reducing the diameter of the annular portion 6a by being pressed are integrally formed. The connection member 1
A ring-shaped free movement suppressing member 2 made of synthetic resin, rubber, metal, or the like is fitted in the annular groove of the inner wall at the lower part of the inner wall. A protruding portion 2b is formed to protrude.

In order to connect the fluid pipe 11 using the connecting member 1 configured as described above, the connecting member 1 is externally fitted to the fluid pipe 11 in advance, and the fluid pipe 11 is connected to the connecting cylindrical portion of the joint 23. Extrapolate to 23a. At this time, since the free movement suppressing member 2 is attached to the connecting member 1, the protruding portion 2b of the free movement suppressing member 2 is pressed against the outer peripheral wall of the fluid pipe 11, so that the connecting member 1 is 11 can be prevented from freely moving. Next, this connecting member 1 is connected to the joint 2
3 is moved to the portion of the connecting cylinder portion 23a, and if the pressing portion 6b of the connecting ring 6 is squeezed using a tool such as a plier, the diameter of the annular portion 6a is reduced. The fluid pipe 11 is strongly formed by the portion 23a and the connection ring 6 of the connection member 1.
Can be securely prevented from coming off of the fluid pipe 11.

Also in this embodiment, the workability is improved because the connecting member 1 is held on an arbitrary outer peripheral wall of the fluid pipe 11 by the free movement suppressing member 2 when the fitting is externally fitted to the fluid pipe 11. In this embodiment, the shape of the free movement suppressing member 2 can be set arbitrarily.

[0035]

As described above, the present invention comprises an insertion portion through which a fluid pipe is inserted, and a movement suppressing means for suppressing movement along the fluid pipe while the fluid pipe is inserted. It is provided. Therefore, when connecting the fluid pipe to the connected object, the movement suppressing means suppresses the free movement of the connection member externally fitted to the fluid pipe due to its own weight or the like, so that the connection member does not move freely. Is held at any position. As a result, it is possible to prevent problems such as falling into the sheath tube or the wiring box and detaching from the end of the fluid tube even if the connecting member is not held by hand or the like. it can.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a connection member externally fitted to a fluid pipe when connecting the fluid pipe to a joint in the embodiment of the present invention.

FIG. 2 is a plan view showing a connecting member of FIG. 1;

FIG. 3 is a cross-sectional view illustrating the connecting member of FIG. 1;

FIG. 4 is a plan view showing a free movement suppressing member attached to the connecting member of FIG. 1;

FIG. 5 is a plan view showing another free movement suppressing member of FIG. 1;

FIG. 6 is a plan view showing still another free movement suppressing member of FIG. 1;

FIG. 7 is a sectional view showing another connecting member of FIG. 1;

FIG. 8 is a sectional view showing still another connecting member of FIG. 1;

FIG. 9 is a cross-sectional view showing a connecting member externally fitted to a fluid pipe according to another embodiment of the present invention.

FIG. 10 is a cross-sectional view illustrating a connection member that is externally fitted to a fluid pipe according to still another embodiment of the present invention.

FIG. 11 is a perspective view showing the connection ring of FIG. 10;

FIG. 12 is a front view showing a state where the connection member of FIG. 10 is connected to a joint.

FIG. 13 is a front view showing a header applied in the embodiment of the present invention.

FIG. 14 is a cross-sectional view showing a state when a fluid pipe is connected to a joint using a conventional connection member.

FIG. 15 is a cross-sectional view showing a state after a fluid pipe is connected to a joint using a conventional connection member.

FIG. 16 is a sectional view showing a wiring box applied in another embodiment of the present invention.

17 is a cross-sectional view showing a state where a fluid pipe is drawn out to the front side of a wall material in order to connect to the elbow of FIG.

FIG. 18 is a cross-sectional view showing a state when a fluid pipe is connected to an elbow using another conventional connection member.

FIG. 19 is a cross-sectional view showing a state after a fluid pipe is connected to an elbow using the connection member of FIG. 18;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection member 2 Free movement suppressing member 2a Insertion part 2b Projection part 3 Moving sleeve 4 Cap nut 5 Cylindrical part 6 Connection ring 11 Fluid pipe 23 Joint 23a, 25b Connection cylinder part 25 Elbow

Claims (9)

[Claims] 1. A connecting member for sandwiching a fluid pipe between the fluid pipe and a connected body, the fluid pipe being inserted into the fluid pipe, and a fluid pipe inserted therein. And a movement suppressing means for suppressing movement along the fluid pipe. 2. The fluid pipe connection member according to claim 1, wherein the movement restraining means prevents only the movement of the connection member due to its own weight and does not hinder the movement by hand. 3. The connection member for connecting a fluid pipe according to claim 1, wherein the main body is formed of a metal material. 4. The apparatus according to claim 1, wherein said movement suppressing means comprises a pressing member for pressing an outer surface of said fluid pipe by its own elasticity when said fluid pipe is inserted.
The connecting member for connecting a fluid pipe according to any one of claims 3 to 3. 5. The connection member for connecting a fluid pipe according to claim 1, wherein the movement suppressing means is provided on an inner surface of the insertion portion. 6. A fluid pipe inserted in said connecting cylinder portion is moved in an axial direction with respect to a connecting cylinder portion provided in said connected body in a state where said fluid tube is inserted. The connecting member for connecting a fluid pipe according to any one of claims 1 to 5, wherein the connecting member is tightened between the fluid pipe and the fluid pipe. 7. A fluid pipe is attached to a connecting member for connecting the fluid pipe to the connected body by tightening the fluid pipe between the fluid pipe and the fluid pipe. A pressing member for connecting a fluid pipe, comprising: a pressing portion that suppresses movement along the fluid pipe. 8. The pressing member for fluid pipe connection according to claim 7, further comprising a projecting portion formed in a ring shape and projecting from an inner surface of the insertion portion. 9. The pressing member for connecting a fluid pipe according to claim 7, wherein the pressing member is formed of a synthetic resin.