JPH0133902Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of application) The present invention relates to a device for fixing piping such as gas piping, water piping, etc., and in particular to a device for fixing piping such as gas piping, water piping, etc. This invention relates to a device effective for fixing piping.

Further, this type of pipe fixing device is used, for example, when fixing a gas pipe for attaching a gas tank to a drain plate B provided in a sink installation part, as shown in FIG.

Here, the gas piping work is carried out before the sink A is installed, and the piping is fixed through the drain plate B attached to the wall surface C.

(Prior art and its problems) As this piping fixing device, the one of Utility Model Publication No. 5658/1986 can be adopted, and the piping 10 is passed through the through hole D formed in advance in the draining plate B, and this piping and the transparent When a fixing device is interposed between the tube and the hole D and tightened, the pipe is fixed to the periphery of the through hole D via the fixing device.

In this conventional fixing device, the fixing device is composed of a main cylinder 1 that is externally fitted onto the piping 10, a tightening ring 2 that is screw-fitted to the main cylinder 1, and a split ring 6 that is externally fitted to both of the main cylinders. The end faces the tapered part 21 on the outer periphery of the tip of the tightening ring 2, and the lower end faces the tapered part 11 provided in the middle of the main cylinder 1, and the outer periphery of the upper end of this split ring is inscribed in the through hole D. .

On the other hand, below the middle of the main cylinder 1, a slit 12 is provided which is cut in the axial direction and opened at the lower end.

Therefore, when this conventional fixing device is assembled as an assembly as shown in FIG. 4, and is fitted onto the pipe 10 and inserted into the through hole D, and the tightening ring 2 is tightened against the main cylinder 1, the split ring 6 Due to the tapered fit between the main cylinder 1 and the clamping ring 2, the outer periphery of the split ring 6 is pressed against the periphery of the through hole D, and on the other hand, due to the tapered fit between the main cylinder 1 and the split ring 6, the lower part of the main cylinder 1 is pressed against the periphery of the through hole D. It is pressed against the outer periphery. Due to the above action, the pipe 10 is fixed to the through hole D of the partition plate such as the drain plate B.

This has the advantage that the piping 10 can be fixed to the partition plate made of a thin metal plate by the pressure force produced by the taper fitting effect without any special processing.

However, with this conventional method, if the area near the through hole of the thin partition plate is wavy,
There is an inconvenience that the piping is fixed to the partition plate in this wavy state.

This is because the fixing device is pressed against the periphery of the through hole D of the partition plate only by the radial acting force of the split ring 3.

(Technical Issues) As mentioned above, the present invention aims to prevent undulations near the penetrating portion even when pipes are fixed to the partition plate made of thin metal plates in a penetrating state. The object is to enable the fixing device to be fixed by pressure contact force in a direction perpendicular to the fixing device.

(Means) The technical means of the present invention for solving the above problems will be explained with reference to FIG.
an inner cylinder 4 having a flange 42 projecting from its upper end, and a second tapered surface 5 screw-fitted to the inner cylinder and facing the tapered surface of the main cylinder at its lower end.
1, a split ring 6 which is fitted onto the pipe 10 and whose both ends abut against the first and second tapered surfaces, and a tightening nut 7 which is screwed into the upper part of the socket 5. It consists of a tightening nut and a C-shaped washer 8 inserted between the partition plate.
The opening 81 of the socket 5 is set to be larger than the diameter of the pipe 10 and smaller than the outer diameter of the tightening nut 7, and its outer diameter is set larger than the diameter of the through hole D of the partition plate. The outer diameter of the tightening nut 7 is set to be less than the diameter of the through hole D.

(effect) The above technical means works as follows.

The pipe 10 is passed through the through hole D of the partition plate, and the inner cylinder 4, socket 5, split ring 6, and tightening nut 7 are assembled in the predetermined state in this penetrating portion, and this assembly is attached to the upper end (terminal) of the pipe 10. ) side.

Then, the flange 42 of the inner cylinder 4 is fixed in contact with the surface of the partition plate, such as the drain plate B, and when the socket 5 is tightened in this state, the split ring 6 interposed between the inner cylinder 4 and the As the first and second tapered portions 41 and 51 approach each other, they contract toward the inner circumferential side and are brought into pressure contact with the pipe 10.

As a result, the combined body of the inner cylinder 4 and the socket 5 is fixed to the pipe 10.

Next, with the tightening nut 7 loosened,
Insert the washer 8 between the tightening nut 7 and the partition plate while aligning it with the lower surface of the partition plate.

The washer 8 is now interposed between the tightening nut 7 and the partition plate, and when the tightening nut 7 is tightened to move upward, this washer is brought into pressure contact with the back surface of the partition plate. On the other hand, since the flange 42 of the inner cylinder 4 is located on the surface side of the partition plate, the periphery of the through hole D in the partition plate is compressed from above and below by the flange 42 and the washer 8, so that the piping 10
will be fixed to the partition plate via this fixing device.

As shown in the same figure, when a gasket 9 is interposed between the flange 42 and the partition plate, the through hole D will be sealed by this gasket, and the hole D will be sealed from the top surface of the partition plate to the bottom of the partition plate. There will be no inconvenience caused by water leakage.

(Effects) Since the present invention has the above configuration, it has the following unique effects.

Since the fixing device is fixed to the partition plate while holding the partition plate made of a thin metal plate from the front and back surfaces and fixes the pipe, the partition plate can be prevented from waving when the pipe is fixed, and the pipe is always fixed in a clean state.

Since the fixing position of the inner cylinder 4 to the pipe 10 can be arbitrarily adjusted in relation to the partition plate, the pipe can be fixed without applying undue stress to the partition plate.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the main parts of the present invention, Figure 2 is the washer 8
FIG. 3 is a plan view showing an example of the field of application of the pipe fixing device of the present invention, and FIG. 4 is an explanatory diagram of a conventional example. ...First tapered surface, 42...Flange, 5...Socket, 5
1...Second tapered surface, 6...Split ring, 7...
Tightening nut, 8... washer, 81... opening, D...
...through hole.

Claims (1)

[Scope of utility model registration request] In a device for fixing piping to a partition plate in a penetrating state, a first tapered surface 41 is fitted onto the piping 10 and is attached to the lower end.
an inner cylinder 4 having a flange 42 projecting from its upper end, and a second tapered surface 5 screw-fitted to the inner cylinder and facing the tapered surface of the main cylinder at its lower end.
1, a split ring 6 that fits onto the pipe 10 and has both ends abutting the first and second tapered surfaces, a tightening nut 7 that is screwed onto the upper part of the socket, and It consists of a C-shaped washer 8 inserted between a fastening nut and a partition plate, and the opening 81 of this washer 8 is set to be larger than the diameter of the pipe 10 and smaller than the outer diameter of the tightening nut 7, and the outer diameter is set larger than the diameter of the through hole D of the partition plate, and further,
A pipe fixing device in which the maximum diameter of the socket 5 and the outer diameter of the tightening nut 7 are set to be less than the diameter of the through hole D.