JPH0112114Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilation louver for a double-layered pipe that is installed at the exit to the outside of a double-layered pipe installed inside a building, that is, at a punched hole in a building wall.

Traditionally, piping from baths and toilets in buildings was
Previously, pipes were run separately to the outside of the building, but in recent years, it has become common to combine these two pipes midway through a two-layer pipe with a separation wall in the center to run a single pipe to the outside of the building. It has become popular. Along with this, new types of ventilation louvers have been provided that are installed in punched holes in building walls at the ends of the two-layer pipes. However, when a double-layer pipe is installed inside a building, it has to be bent at many points, and the central dividing wall of the double-layer pipe is not necessarily vertical at the end. Due to the piping, it was not possible to prevent the central separation wall at the end of the two-layer pipe from tilting to the left or right. Therefore, the inside of the ventilation louver installed at the end of the two-layer pipe must match the inclination angle of the central separation wall of the two-layer pipe, and the ventilation opening on the outside of the building wall must be horizontal. It is required to always be installed in a predetermined direction position. For this reason, the inside of the building wall, that is, the two-layer pipe side, of the ventilation louver must be separated from the outside of the building wall, and the inside of the building wall and the outside of the building wall are arranged at predetermined angles. A ventilation louver with a structure that connects both sides became necessary.

Therefore, as a result of various studies, the present invention was developed, and its characteristics are that an appropriate number of circumferential holes are provided in the inner side of the building wall of the ventilation louver, that is, in the flange of the ventilation frame; A piece of plate with a width slightly larger than the circumferential elongated hole is placed on the inside of the circumferential elongated hole portion of the ventilation frame, and a small bolt is inserted from the outer side of the building wall, that is, the outer frame, and the plate is inserted through the circumferential elongated hole of the ventilation frame. Screw into the female screw part of the piece, insert the ventilation frame into the punched hole in the building wall at the end of the double-layer pipe, position the outer frame in the specified direction with the small bolt loosened, and tighten the small bolt. Tightening is to fix the ventilation frame and the outer frame, and it can be installed and fixed by simply rotating the outer frame in the specified direction and tightening the small bolts while it is placed in the punched hole in the building wall at the end of the double-layer pipe. To provide a ventilation louver for a double-layer pipe that is convenient to use and allows easy work and fine adjustment of the angle.

The present invention will be described in detail below based on drawings showing embodiments. Figure 1 shows the installation state, where A is a building wall, a two-layer pipe B having a central separation wall b is piped from the inside, and the ventilation frame 1 of the ventilation louver C is connected to the two-layer pipe B. The outer frame body 2 is installed on the outside of the architectural wall A. The ventilation frame 1 and the outer frame 2 are connected and fixed by small bolts 16, 16, . . . .

FIG. 2 shows a disassembled state of the ventilation louver C of the embodiment, and 4 is the front ventilation part of the outer frame body 2;
An outer peripheral frame part 5 is connected to the front ventilation part 4, and a collar part 3 is integrally formed at the rear end of the outer peripheral frame part 5. The front ventilation part 4 is provided with a plurality of rows of ventilation holes 4a, 4a..., and the ventilation holes 4a, 4a... are provided with an inclined plate part 4 inside.
b, 4b... are formed. Numerals 6 and 6 are small holes bored in the collar 3, and 7 is an auxiliary outlet.
Further, 8 and 8 are lateral grooves for inserting into the center separation wall of the two-layer pipe, which are provided in the vertical direction upper and lower parts of the peripheral wall 9 of the ventilation frame 1, and 10, 10, 10, 10 are removably attached to the peripheral wall 9. The tourniquet plate 10 is an elastic-shaped tourniquet plate, and when it is fitted into the double-layer pipe B, the elasticity of the tourniquet plate 10 serves to maintain the fitted state. 11,
11 is a circumferential hole bored in the flange 12 of the ventilation frame 1, and 13, 13 are plate pieces whose width is slightly larger than the circumferential hole 11, and a female screw hole 14 is formed in the center. .

The method of assembling the parts formed as described above and installing them in the punched holes of the architectural wall A will be explained below. First, the flange 12 of the ventilation frame 1 is aligned with the flange 3 of the outer frame 2, After the plate pieces 13, 13 are brought into contact with the circumferential holes 11, 11 of the ventilation frame 1, the outer frame 2
Insert the small bolts 16, 16 into the small holes 6, 6 through the washers 15, 15, and
Female screw hole 1 of plate pieces 13, 13 through 1, 11
4 and 14. Leave this screw loose. Next, as shown in FIG. 1, the ventilation frame 1 is passed through the punched hole in the building wall A so that the horizontal grooves 8, 8 of the ventilation frame 1 match the central separation wall b of the double-layer pipe B. The outer frame body 2 is fitted into the architectural wall A.
abuts against the outer surface of the Finally, the outer frame body 2 is rotated to a predetermined position, and the small bolts 16 are tightened to fix it and complete the installation.

FIG. 3 shows the installation state when the central separation wall b of the double-layer pipe B is in a vertical state, and the small bolts 16, 16 and the plate pieces 13, 13 are attached to the circumferential hole 11 of the collar 12 of the ventilation frame 1, Figure 4 shows an example of how the ventilation louver C for a double-layer pipe is installed when the center dividing wall b of the double-layer pipe B is slightly inclined to the left. Bolts 16, 16 and plate piece 1
3 and 13 are the circumferential holes 11 of the flange 12 of the ventilation frame 1;
The right side of 11 is located at the upper end, and the left side is located at the lower end. In both FIGS. 3 and 4, the outer frame body 2 is positioned so that the inclined plate portions 4b, 4b, . . . are in a horizontal state.

In FIG. 5, the plate piece 13 has a flat plate shape, and the plate piece 13' in FIG. 13' has a spring force and presses the flange 12 of the ventilation frame 1 against the flange 3 of the outer frame 2, and both the flange parts 12 and 3 are tightened and fixed by the spring force, and the outer frame 2 When installing it by turning it in a predetermined direction, there is a convenient advantage in that all you have to do is rotate the outer frame 2 with force using the elasticity of the plate piece 13' without loosening the small bolt 16. .

As described above, the present invention provides an appropriate number of circumferential holes in the flange of the ventilation frame, and a slightly larger plate piece is brought into contact with the circumferential holes, and a small hole in the flange of the outer frame is inserted. Since the structure is such that the ventilation frame and the outer frame are connected by inserting a small bolt and screwing it through the circumferential hole of the ventilation frame into the female screw hole of the plate piece, it is possible to connect the ventilation frame and the outer frame. , insert the two-layer pipe into the punched hole in the building wall at the end, fit the center separation wall of the two-layer pipe into the horizontal groove on the peripheral wall of the ventilation frame, then loosen the small bolt and rotate the outer frame to the specified position. It is possible to provide a ventilation louver for a double-layer pipe that is very simple and easy to use, and can be freely adjusted by simply positioning it, tightening a small bolt, and fixing it.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view showing an attached state, Fig. 2 is an exploded perspective view, and Figs. 3 and 4 are explanations showing two examples of the attached state. 5 and 6 are enlarged sectional views of main parts showing different embodiments in which the shapes of the plate pieces are different. A... Building wall, B... Two-layer pipe, b... Central separation wall, C... Ventilation louver for two-layer pipe, 1... Ventilation frame, 2... Outer frame, 3... Collar, 4 ...Front ventilation part, 5...Outer frame part, 6...Small hole, 8,8...
Horizontal groove, 9...peripheral wall, 11...peripheral hole, 12...flange, 13, 13'...plate piece, 14...female screw hole,
15...Watsushiya, 16...Small bolt.

Claims (1)

[Scope of claim for utility model registration] 1. A double-layer pipe installed inside a building, etc. in a punched-out hole in a building wall, having multiple rows of vents in the front ventilation part, and extending rearward from the front ventilation part. An outer frame having an outer peripheral frame and a flange, and a ventilation frame having lateral grooves for inserting into the central separation wall of the two-layer pipe in the upper and lower vertical portions of the circumferential wall and connected to the flange of the outer frame. In the ventilation louver, an appropriate number of circumferential holes are bored in the flange of the ventilation frame, and a plate piece that is slightly wider than the circumferential holes and has a female threaded hole in the center is inserted into the inner surface of the flange of the ventilation frame. A small bolt is inserted from the outside into a suitable number of small holes drilled in the flange of the outer frame, and the small bolt is inserted through the circumferential hole of the ventilation frame into the hole of the plate. The entire structure is constructed by screwing into a female screw hole, and by loosening the small bolt, the outer frame can be positioned in a predetermined direction regardless of the direction of inclination of the ventilation frame fitted into the tip of the double-layer pipe. A ventilation louver for double-layer pipes characterized by the following: 2 By bending the center of the plate piece inward and screwing in a small bolt, the outer frame body and the ventilation frame body are connected with each other with a spring force, and the outer frame body can be attached without loosening the machine screws. A ventilation louver for a double-layer pipe according to claim 1, which is fixedly held by rotating it in a predetermined position.