JPS5822458Y2 - wall sleeve - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wall sleeve used, for example, when an air supply and exhaust pipe of a combustion device passes through a wall, and is designed to facilitate installation.

Generally, when an air supply and exhaust pipe of a combustion device penetrates a wall, it is customary to make a hole in the wall in advance and install a sleeve in the hole.

The sleeve not only prevents the wall from collapsing, but also has an excellent effect in enhancing the aesthetic appearance of the room by shading unsightly holes in the wall.

By the way, in the past, a pair of sleeves were inserted from both sides of the wall hole, and the flange portions of the sleeves were screwed to the wall surface.

However, with this configuration, if the wall is made of concrete, it is difficult to fasten with screws, and if the wall is made of clay, the screws do not work effectively, making it impossible to securely attach the device.

Therefore, the object of the present invention is to provide a sleeve that can be reliably attached regardless of the material of the wall.

In order to achieve this objective, the present invention has the following configuration.

That is, a flange is provided at one end of the sleeve body to cover one edge of the wall hole, and a movable flange body is slidably fitted to the outer periphery of the sleeve body. The movable flange is fixed to the sleeve body by the deformation of the deformable portion in this structure.

First, in FIG. 1, 1 is a combustion equipment such as a hot air heater, and an intake cylinder 2 and an exhaust pipe 3 led out from this are passed through an inner wall 5 via a wall sleeve 4, and are further provided on an outer wall 6. It is connected to the supply/exhaust l/tube 7.

The wall sleeve 4 has an inner wall 5 as shown in FIGS.
a sleeve body 9 passing through a wall hole (not shown) formed in the wall hole and having a flange 8 provided at one end to cover one edge of the wall hole;
The main body is a movable flange body 10 that is slidably fitted onto the outer periphery of the sleeve body 9.

Reference numeral 11 denotes a fitting hole drilled in the movable flange body 10, and the edge of the hole is a rising edge 11a, and a notch 11b is formed in a part of the rising edge 11a.

12 is an outer peripheral edge formed on the movable flange body 10 and bent in the direction of the wall 5.

Now, reference numeral 13 is located inside the movable flange body 10, and is an elastic fixture to which a screw 14 inserted through the movable flange body 10 from the outside is screwed. It has 15°15' shaped leg pieces.

In the above structure, the sleeve body 9 is penetrated from one side of the wall hole, the edge of the one hole is covered with the flange 8, the movable flange body 10 is then fitted from the front end of the sleeve body 9, and the other side of the wall hole is fitted. Make sure to cover the edges.

When the screw 14 is tightened in this state, the elastic fixture 13 approaches the movable flange body 10 and the leg pieces 15, 15' are spread outward, and finally the leg piece 15 is attached to the bent outer peripheral edge 12.
The leg pieces 15' are in direct pressure contact with the sleeve body 9 through the notches 11b.

Therefore, the movable flange body 10 is attached to the sleeve body 9 and at the same time holds the inner wall 5 with one flange 8.

As a result, the sleeve 4 is fixed to the inner wall 5.

Furthermore, since the elastic fixture 13 is set lower than the bent outer peripheral edge 12, it is not visible from the outside.

It would be even more convenient if a small hole 16 was provided in the movable flange body 10 to enable attachment to a wall surface using screws.

In the present invention, a flange is provided at one end of the sleeve body to cover one edge of the wall hole, and a movable flange body is slidably fitted to the outer periphery of the sleeve body. deforms when approached,
An elastic fixing device that directly presses the outer periphery of the sleeve body is attached so that it can be bonded freely. In this configuration, the elastic fixing device provided on the movable flange directly presses the outer periphery of the sleeve body, fixing the movable flange and the sleeve body. Therefore, the sleeve body is securely fixed to the hole in the inner wall regardless of the material of the wall, and both sides of the circumference are also securely covered by the flanges and movable flanges, which not only improves the appearance but also protects the hole. It can be done.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a combustion device with air supply and exhaust piping using the sleeve of the present invention, Figure 2 is a side view showing an embodiment of the sleeve, Figure 3 is a sectional view, and Figure 4 is A of Figure 3. -A' arrow view. 5... Wall, 8... Flange, 9...
... Sleeve body, 10... Movable flange body,
12...Bent outer periphery, 13...Elastic fixture, 14...Screw, 15, 15'...
- Deformed part (leg piece).

Claims (3)

[Scope of utility model registration request] (1) A sleeve body that penetrates the wall hole and has a flange at one end that covers one edge of the wall hole, and a sleeve body that is slidably fitted to the outer periphery of the sleeve body and that covers the other edge of the wall hole. A movable flange body for covering, and an elastic fixture that is attached to the movable flange body via screws so as to be able to move toward and away from the movable flange body, and has a deformable portion that deforms when approaching the movable flange and directly presses the outer periphery of the sleeve body. A wall sleeve. (2) The wall sleeve according to claim 1, wherein the deformable portion of the elastic fixture is configured to press a part of the movable flange and the outer periphery of the sleeve body. (3) The movable flange body has a bent outer periphery facing the wall, and the height of the elastic fixture is set lower than the bent outer periphery. Wall sleeve as described in section.