JPS5915817Y2 - Outlet device for heat storage tanks, etc. - Google Patents

Description

[Detailed explanation of the invention] This invention is mainly used for attaching heat storage tanks, etc., which are used when connecting hot water pipes, hot water pipes, hot water discharge pipes, etc. to the surrounding wall of heat storage tanks, etc. installed as part of hot water supply equipment. It concerns an exit device.

Conventionally, this type of outlet device has been designed by inserting the outlet body into a fixing hole in the peripheral wall of a heat storage tank or the like from the outer layer side with a gasket interposed, and attaching a flanged tightening nut to the inner layer side end of the outlet body. After tightening from the inner layer side, a foam material such as hard urethane foam is injected into the fixing hole between the outlet body and the heat insulating material, and a flanged decorative nut is attached to the outer layer side end of the outlet body. The outlet was installed so that it could be tightened from the side.

However, when installing the outlet, it is necessary to inject a foam material such as hard urethane foam into the fixing hole between the outlet body and the heat insulating material, or to attach a decorative nut to the outer end of the outlet body. When tightening, the outlet body also rotates at the same time, causing the decorative nut to spin idle, making it troublesome to attach the outlet to the fixing hole in the surrounding wall, and complicating the installation work of the outlet to a heat storage tank, etc. It had become.

In addition, after injecting the foam material into the fixing hole, when taking out the decorative nut and tightening it to the body, it is tightened to the extent that the foam material does not collapse, which may lead to insufficient sealing and leakage of hot water into the insulation material. Therefore, the insulation effect was not good.

This idea was devised in order to solve the problems mentioned above, and the inner circumferential surface is placed at a suitable location on the circumferential wall of a heat storage tank, etc., in which the inner and outer layers are filled with foamed plastic heat insulating material. A circular fixing hole is bored so that a pair of fixing pieces with anti-idling grooves facing each other are slightly protruded from the inner layer. An outlet body having a flange with a hook on the inner end thereof and a pair of idling prevention protrusions facing each other on the outer peripheral surface of the cylindrical body near the flange is inserted between the fixed piece and the flange. Insert it from the inner layer side so that each idle rotation prevention protrusion is fitted into each idle rotation prevention groove with a sealing gasket interposed therebetween. A tightening nut having a female screw portion and a flange with a hook on the inner layer side end is tightened from the outer layer side with a sealing gasket interposed between the fixing piece and the flange, On the outside of the male threaded part of the cylindrical body of the removable body, a decorative nut with a female threaded part on the inner peripheral surface and a flange with a locking protrusion on the inner edge is attached to the periphery of the fixing hole in the outer layer. By tightening from the outer layer side so that the locking protrusion is locked, it is extremely easy to attach the outlet to the fixing hole in the surrounding wall, and the installation work for the outlet to the heat storage tank, etc. is greatly simplified. In addition, the leakage of hot water to the heat insulating material is reliably prevented and the insulation effect is increased, and the stability of the tightening position of the decorative nut and the appearance of the outlet are also improved. The present invention provides an outlet device for a heat storage tank or the like.

Hereinafter, one embodiment of this invention will be described in detail based on the drawings.

As shown in the figure, a heat insulating material 3 made of foamed plastic such as hard urethane foam is filled inside an inner layer 1 and an outer layer 2 made of FRP. A pair of facing fixing pieces 6 with anti-idling grooves 5 are attached to the inner layer 1.
A circular fixing hole 7 is bored so as to protrude slightly from the hole.

In addition, a hot water pipe, a hot water pipe, a hot water discharge pipe (
The female thread part 8 for joining the male thread part, such as (not shown), is attached to the outer layer 2
A cylindrical body 10 is provided on the outer circumferential surface of the side end and has a male threaded part 9 for joining a female threaded part of a decorative nut (described later). A flange 12 having a hook 11 facing toward the body 10 is provided protrudingly, and the cylindrical body 10
An outlet main body 14 is formed by providing a pair of idling prevention protrusions 13 facing each other on the upper and lower portions of the outer circumferential surface near the flange 12.

This outlet main body 14 is inserted into the fixing hole 7, a ring-shaped sealing fluororubber gasket 15 is interposed between the fixing piece 6 and the flange 12, and each idling prevention groove 5 is inserted into each idling prevention groove 5. Insert from the inner layer 1 side so that the protrusion 13 is fitted.

Next, a female screw portion 16 is provided on the inner circumferential surface of the end on the outer layer 2 side of the cylindrical portion, and a flange is provided on the inner circumferential surface of the cylindrical portion on the inner layer 1 side. A tightening nut 19 is formed by protruding from the fixing piece 6 and the flange 18. A ring-shaped sealing fluororubber gasket 20 is interposed between them, and they are fastened from the outer layer 2 side.

A decorative nut is formed by protruding a flange 23 having a locking protrusion 22 provided along the circumferential direction near the inner periphery on the inner edge of the cylindrical portion having a female threaded portion 21 on the inner periphery. 24
The female screw portion 21 of the decorative nut 24 is placed on the outside of the male screw portion 9 of the cylindrical body 10 of the outlet main body 14, and the outer layer is attached so that the locking protrusion 22 is locked to the peripheral edge of the fixing hole 7 of the outer layer 2. It is fastened from two sides.

Further, the gasket 15 is provided with a groove 25 along the circumferential direction on the surface on the side of the fixing piece 6 at an intermediate portion between the inner peripheral edge and the outer peripheral edge. At times, the outer peripheral edge of the packing 15 is pressed against the groove 25 side,
Care is taken so that the gasket 15 is brought into close contact with the fixing piece 6.

Further, the tightening nut 19 and the decorative nut 24 are each provided with a hexagonal tightening portion 26 on the outer peripheral surface of the cylindrical portion,
When tightening the tightening nut 19 and the decorative nut 24, consideration is given so that they can be easily tightened with a tightening tool.

Since this device is configured as described above, the outlet body 14 is inserted into the fixing hole 7 of the peripheral wall 4 of the heat storage tank etc. from the inner layer 1 side with the gasket 15 interposed, and the cylindrical body 10 of the outlet body 14 is inserted into the fixing hole 7 of the heat storage tank or the like. A tightening nut 19 is fastened to the inside of the threaded part 9 from the outer layer 2 side with a gasket 20 interposed therebetween, and a decorative nut 24 is fastened to the outside of the male threaded part 9 of the cylindrical body 10 of the outlet main body 14 from the outer layer 2 side. The outlet can be attached to the fixing hole 7 of the peripheral wall 4 by simply tightening it.

That is, the outlet main body 14 is inserted from the inner layer 1 side with the packing 15 interposed between the fixing piece 6 and the flange 12.
A tightening nut 19 is fastened to the inside of the male threaded portion 9 of the cylindrical body 10 from the outer layer 2 side with a packing 20 interposed between the fixing piece 6 and the flange 18, so that there is no outlet as in the conventional case. After inserting the main body from the outer layer side, a foam material such as hard urethane foam is injected into the fixing hole between the outlet main body and the heat insulating material, or the idling prevention groove 5 of the fixing piece 6 of the fixing hole 7 is inserted.
Since the idling prevention protrusion 13 of the cylindrical body 10 of the outlet main body 14 is fitted to the idling prevention protrusion 13 of the cylindrical body 10 of the outlet main body 14, when a decorative nut is tightened to the outer layer side end of the outlet main body as in the conventional case, the outlet main body is also tightened at the same time. It is extremely easy to attach the outlet to the fixing hole 7 of the peripheral wall 4 without causing the decorative nut to spin idle due to rotation, and the installation work of the outlet to the heat storage tank etc. can be significantly simplified. .

In addition, gaskets 15.2 are provided between the fixed piece 6 and the flange 12 and between the fixed piece 6 and the flange 18, respectively.
0, the tightening nut 19 can be securely tightened inside the male screw part 9 of the cylindrical body 10 of the outlet main body 15 from the outer layer 2 side, so the backing is complete and leakage to the heat insulating material 3 is ensured. This can greatly increase the heat insulation effect.

In addition, the flange 1 of the extraction body 14 and the tightening nut 19
2. By providing the hook pieces 11 and 17 on the periphery of 18, the intervening position of the seal 15 and 20 can be greatly stabilized, and the seal 15 and 20 are made of fluorocarbon rubber and have heat resistance, chemical resistance, By being particularly excellent in oil resistance, weather resistance, etc., not only can the installation operation of the outlet be made easier, but also leakage of hot water to the heat insulating material 3 can be more reliably prevented.

Furthermore, by providing the locking protrusion 22 along the circumferential direction near the inner peripheral edge of the flange 23 of the decorative nut 24,
The cylindrical body 10 of the outlet main body 15 for the cosmetic nut 24 and the male screw part 9
When tightening from the outer layer 2 side, the locking protrusion 22 is locked to the peripheral edge of the fixing hole 7 of the outer layer 2, which not only makes the tightening position of the decorative nut 24 extremely stable, but also allows the decorative nut 24 to Since the inside of the fixing hole 7 can be reliably closed from the outer layer 2 side, the appearance of the outlet is also good.

As explained above, according to this invention, it is extremely easy to attach the outlet to the fixing hole in the surrounding wall, and the installation work for the outlet to the heat storage tank, etc. can be significantly simplified. It reliably prevents hot water from leaking into the material, increasing the heat insulation effect, and also provides various effects such as the stability of the fastening position of the decorative nut and the excellent appearance of the outlet. .

[Brief explanation of drawings]

The drawings show an embodiment of this invention, in which FIG. 1 is a sectional view, FIG. 2 is a right side view of the main body of the outlet, and FIG. 3 is a left side view of the outlet. 1...Inner layer, 2...Outer layer, 3...
...Heat insulation material, 4...Peripheral wall, 5...Idle rotation prevention groove, 6...Fixing piece, 7...Fixing hole, 8.16. 21... Female screw part, 9...
・Male screw part, 10... Cylindrical body, 11.17...
... hook piece, 12.18.23 ... flange,
13...Idle rotation prevention protrusion, 14...Removal Japanese body, 15,20...Putskin, 19...
... Tightening nut, 22 ... Locking protrusion, 24.
...Makeup nut, 25...Groove, 26.
...Tightening part.

Claims (1)

[Scope of utility model registration request] A pair of idling-preventing grooved fixing pieces facing each other on the inner circumferential surface are installed in a circle such that they slightly protrude from the inner layer at appropriate locations on the circumferential wall of a heat storage tank, etc., in which the inner and outer layers are filled with foamed plastic heat insulating material. A shaped fixing hole is drilled in the fixing hole, and the fixing hole has a flange with a hook on the inner layer side end of the cylindrical body, which has a male threaded part on the outer layer side end. The outlet body has a pair of idling prevention protrusions facing each other, and a sealing gasket is interposed between the fixing piece and the flange, and each idling prevention protrusion fits into each idling prevention groove. It is inserted from the inner layer side so as to fit together, and the inner side of the cylindrical male thread part of the outlet main body is provided with a female thread part on the outer layer side end and a flange with a hook on the inner layer side end. Tighten the tightening nut from the outer side with a sealing gasket interposed between the fixing piece and the flange, and attach a female threaded part on the inner peripheral surface of the male threaded part of the cylindrical body of the outlet body. A heat storage device characterized in that a decorative nut having a flange with a locking projection on the inner edge thereof is fastened from the outer layer side so that the locking projection is locked to the peripheral edge of the fixing hole in the outer layer. Outlet device for tanks, etc.