JPH0220598Y2 - - Google Patents

Description

[Detailed description of the invention] <<Industrial Application Field>> This invention relates to a chimney body that is convenient to use.

《Prior art》 As shown in Fig. 1, accidents occur in the past when small birds or leaves enter through the smoke outlet 9 provided in the rain and snow fall prevention pipe 8 provided in the chimney 7, resulting in incomplete combustion. In addition, there was an incident where the wire mesh attached to the smoke exhaust vent to prevent small birds from entering came undone due to the wind and hit a person, causing injury.

[Problems to be solved by the invention] By the way, this device prevents small birds or leaves from entering through the smoke exhaust port 9, and also eliminates the cause of incomplete combustion and separation due to wind, thereby solving the above problems. The purpose is to obtain a chimney body that is convenient to use.

<Means for Solving the Problems> In order to achieve the above object, the structure of this invention will be explained using FIGS. 2 to 10 corresponding to the embodiment. H at the tip of
Install the rain/snow fall prevention pipe 2 of type, T type, L type, etc.
The intrusion prevention plate 6 is attached to the smoke exhaust port 3 provided in the fitting tube 13 fitted into the rain/snow fall prevention pipe 2 and is formed of a lath plate 5 with a large number of lath holes 4. A circular plate 15 having a diameter slightly smaller than that of the fitting tube 13 is provided, and an inclined edge 17 is provided that widens from the peripheral edge 16 of the circular plate 15, and the inclined edge 17 is formed slightly inward from the mouth portion 14 of the fitting tube 13. It is secured to the second protrusion 19 and attached, and the peripheral edge 16 of the circular plate 15 and the mouth part 14 are fixed by the first brazing part 20, and furthermore, several cut and raised tongue pieces are attached to the peripheral edge of the fitting 13. A portion 21 is provided, and the tongue portion 21 is latched to a third protrusion 22 provided on the rain and snow fall prevention pipe 2.

<<Example>> An example of this invention will be described below with reference to the drawings. 1 is a chimney, and a rain and snow fall prevention pipe 2 of H type, T type, L shape, etc. is attached to the tip, and the rain and snow fall prevention pipe 2 is attached to the tip. An intrusion prevention plate 6 formed of a lath plate 5 having a large number of lath holes 4 is attached to a smoke exhaust port 3 provided in a fitting tube 13 that is fitted into the pipe.

Also, the rain and snow fall prevention pipe 2 shown in Fig. 2 is H-shaped, the rain and snow fall prevention pipe 2 shown in Fig. 9 is T-type, and the rain and snow fall prevention pipe 2 shown in Fig. 10 is L-type. The base tube 10 is fitted into a tip hole 11 provided at the tip of the chimney 1 and inserted up to the first protrusion 12 formed on the chimney 1. In addition, the smoke outlet 3 of the rain and snow fall prevention pipe 2 shown in FIGS. 2, 9, and 10 is formed of a lath plate 5 with a lath hole 4 in the mouth 14 of the fitting tube 13. It is attached to an intrusion prevention plate 6, and the intrusion prevention plate 6 is provided with a circular plate 15 having a slightly smaller diameter than the fitting cylinder 13, and the peripheral edge 1 of the circular plate 15 is
A sloped edge 17 wider than 6 is provided, and the sloped edge 17
is attached by being engaged with a second protrusion 19 formed slightly inward from the mouth 14 of the fitting cylinder 13, and the peripheral edge 16 of the circular plate 15 and the mouth 14 are fixed by a first brazing part 20, Furthermore, several cut-and-raised tongue pieces 21 are provided on the periphery of the fitting tube 13, and the tongue pieces 21 are latched to a third protrusion 22 provided on the rain/snow fall prevention pipe 2.

In addition, the fitting tube 13 is provided with a third protrusion 22, and as shown in FIGS.
By making it cylindrical in step 3, a sturdy fitting tube 13 can be obtained.
4 can be formed. 18 is the lower mouth portion 18.

《Operation and effect of the device》 This device has the above-mentioned configuration, and includes installing a rain and snow fall prevention pipe 2 of H type, T type, L shape, etc. at the tip of the chimney 1, and installing a rain and snow fall prevention pipe 2 on the rain and snow fall prevention pipe 2. By attaching an access prevention plate 6 formed of a lath plate 5 with a large number of lath holes 4 to the smoke exhaust port 3, small birds etc. can be prevented from entering and incomplete combustion can be prevented. 6
By using a lath plate 5 with lath holes 4, it is sturdy and can provide sufficient exhaust air.
This reliably prevents incomplete combustion due to poor exhaust.

Furthermore, as shown in FIG. 8, the intrusion prevention plate 6 is provided with a circular plate 15 having a slightly smaller diameter than the fitting tube 13, and has an inclined edge 17 that is wider than the peripheral edge 16 of the circular plate 15, so that the lower opening of the fitting tube 13 is provided. By inserting from the part 18, the inclined edge 17 becomes the second protrusion 19 as shown in FIG.
The fitting tube 13 and the entry prevention plate 6 are reliably attached by providing the first brazed portion 20, and the fitting tube 13 has a number of holes on the periphery. A cut-and-raised tongue piece 21 is provided, and the tongue piece 21 is locked to a third protrusion 22 provided on the rain and snow falling prevention pipe 2 to prevent it from coming off, as shown in FIG. be.

Therefore, the attachment of the intrusion prevention plate 6 and the fitting tube 13 and the attachment of the insertion tube 13 and the rain and snow falling prevention pipe 2 are secure, and the intrusion prevention plate 6 and the insertion tube 13 are not blown away by the wind. It can be used safely without causing any danger to people walking on the road.

Furthermore, it has a simple structure, is suitable for mass production, and can be provided at low cost, and has many practical effects.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of the conventional product, Fig. 2 is a partially cutaway side view, Fig. 3 is a partially enlarged side view, Fig. 4 is a sectional view taken along line A-A in Fig. 3, Figure 5 is a partially cutaway perspective view, Figure 6 is a partially cutaway perspective view of the entry prevention plate,
Fig. 7 is a partial longitudinal cross-sectional view of the mounting body, Fig. 8 is an explanatory diagram of the installation of the intrusion prevention plate, Fig. 9 is a partially cutaway side view of the second embodiment, and Fig. 10 is an illustration of the third embodiment. It shows a partial cutaway side view. 1... Chimney, 2... Rain and snow fall prevention pipe, 3... Smoke exhaust port, 4... Lath hole, 5... Lath plate, 6... Entry prevention plate, 7... Chimney, 8... Rain and snow Fall prevention tube, 9
... Smoke exhaust port, 10 ... Base tube, 11 ... Tip hole, 1
2...First protrusion, 13...Insertion tube, 14...Mouth, 15...Circular plate, 16...Periphery, 17...Slope edge, 18...Lower mouth, 19...Second protrusion Article, 20
...First brazing part, 21...Tang piece part, 22...
Third protrusion, 23...Second brazing portion, 24...Mounting body.

Claims (1)

[Scope of utility model registration request] A rain and snow fall prevention pipe 2 of H type, T type, L shape, etc. is attached to the tip of the chimney 1, and a large number of lath holes 4 are formed in the smoke exhaust port 3 provided in the fitting tube 13 fitted into the rain and snow fall prevention pipe 2.
In the case where an intrusion prevention plate 6 formed of a lath plate 5 is attached, the intrusion prevention plate 6 is provided with a circular plate 15 having a slightly smaller diameter than the fitting tube 13, and has an inclination that widens from the peripheral edge 16 of the circular plate 15. An edge 17 is provided, and the inclined edge 17 is engaged with and attached to a second protrusion 19 formed slightly inwardly from the mouth 14 of the fitting cylinder 13, and the peripheral edge 16 of the circular plate 15 and the mouth 14 are connected to each other. 1, and several cut-and-raised tongue portions 21 are provided on the periphery of the fitting tube 13, and the tongue portions 2
A chimney body characterized in that 1 is latched to a third protrusion 22 provided on a rain and snow fall prevention pipe 2.