CN209819572U

CN209819572U - Chimney non-return device

Info

Publication number: CN209819572U
Application number: CN201920661485.7U
Authority: CN
Inventors: 张人仁; 杨馨
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2019-12-20
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses a chimney non-return device, which comprises a wind cap and a smoke guide assembly, wherein the wind cap is connected with a base through a support shaft; lead cigarette assembly and include the rotor arm, the choke plate is installed to rotor arm one end, and the choke plate is convex and circular arc axis coaxial with the back shaft, and the oar blade is installed to the rotor arm other end, and the oar blade is straight plate-type and parallel with the rotor arm centering, and the rotor arm middle part is passed through the bearing rotatable installation on the back shaft, and this technical scheme has light in weight, the structure is firm, self-adaptation wind direction, prevent wind and hinder rain snow effectual, prevent that the flue gas from flowing backward effectual advantage.

Description

Chimney non-return device

Technical Field

The utility model relates to a boiler apparatus technical field specifically is a chimney non return device.

Background

At present, in rural areas, firewood stoves are mostly used as main tools for making meals, small stoves or boilers are also used for making meals or heating in winter in the north, chimneys are required to be used as main means for guiding smoke outwards, in order to prevent rain and snow from entering the chimneys, people add corner-shaped chimney caps or umbrella-shaped air caps at the chimney mouths, when wind exists, particularly when the wind is strong, the corner-shaped chimney caps easily cause smoke to be poured into the house, carbon monoxide poisoning easily occurs, the simple umbrella-shaped air caps have the following defects, in order to achieve good smoke exhaust effect, the air caps are far away from the chimney mouths, so that rain and snow easily enter the chimneys, in order to prevent rain and snow from entering the chimneys, the lower opening edges of the air caps need to be close to the chimney mouths as much as possible, so that the smoke exhaust openings become small, and smoke exhaust is difficult.

Disclosure of Invention

An object of the utility model is to provide a chimney non return device, the innovative design has led the cigarette assembly of convex choke plate, rotor arm, the combination of wind oar blade, has light in weight, the structure is firm, self-adaptation wind direction, prevent wind and hinder rain snow effectual, prevent that the flue gas from flowing backward effectual advantage, solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a chimney non-return device comprises a hood 4 and a smoke guide assembly 2, wherein the hood 4 is connected with a base 1 through a support shaft 3; the smoke guide assembly 2 comprises a rotating arm 202, a choke plate 201 is installed at one end of the rotating arm 202, the choke plate 201 is arc-shaped, the arc axis of the choke plate is coaxial with the supporting shaft 3, a wind blade 203 is installed at the other end of the rotating arm 202, the wind blade 203 is flat and is aligned and parallel to the rotating arm 202, and the middle of the rotating arm 202 is rotatably installed on the supporting shaft 3 through a bearing 204.

Further: the base 1 is in a cross shape, and the base 1 is formed by welding hollow square tubes.

Further: and a tension bolt 5 is arranged between the bottom end of the support shaft 3 and the base 1.

Further: the middle part of the support shaft 3 is provided with an annular step 301 for axially supporting the lower end of the inner ring of the bearing 204.

Further: a bearing gland 205 is arranged at the upper end of the outer ring of the bearing 204, the bearing gland 205 is connected with the rotating arm 202, a damping sleeve 206 is arranged at the upper end of the bearing gland 205 on the support shaft 3, a locking ring 207 is arranged at the upper end of the damping sleeve 206 on the support shaft 3, and the locking ring 207 is connected with the support shaft 3 through a locking bolt 208.

The utility model has the advantages that: the utility model provides a chimney non-return device, install at the chimney mouth end, when having the wind to blow, the automatic direction of wind oar blade is followed the wind surface, drives the rotor arm to rotate simultaneously and makes the outer arc face of choke plate upwards the wind head direction, makes wind pass through from choke plate both sides and hood top (also have a small part to pass through between hood and choke plate), forms the negative pressure at the chimney mouth face, is favorable to discharging fume; if rain or snow exists, the smoke can not enter the chimney due to the blocking of the wind-blocking plate, so that the smoke discharging effect is good, and the effects of preventing smoke from flowing backwards and preventing rain or snow from entering the chimney are remarkable; the friction force between the damping sleeve and the bearing gland is adjusted through the locking ring, the vibration of wind power to the wind-driven propeller blades is reduced under the damping action, the stability of the whole device is facilitated, the base is of a cross structure formed by welding hollow square pipes, and the wind-driven propeller has the advantages of good rigidity and light weight.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a partially enlarged view of fig. 2A.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a chimney check device includes a hood 4, and further includes a smoke guide assembly 2, the hood 4 is connected with a base 1 through a support shaft 3; the smoke guide assembly 2 comprises a rotating arm 202, a choke plate 201 is installed at one end of the rotating arm 202, the choke plate 201 is in a circular arc shape, the circular arc axis of the choke plate is coaxial with the supporting shaft 3, a wind blade 203 is installed at the other end of the rotating arm 202, the wind blade 203 is in a flat plate shape and is aligned and parallel with the rotating arm 202, and the middle of the rotating arm 202 is rotatably installed on the supporting shaft 3 through a bearing 204.

Preferably: the base 1 is in a cross shape, and the base 1 is formed by welding hollow square tubes.

Preferably: a tension bolt 5 is arranged between the bottom end of the supporting shaft 3 and the base 1.

Preferably: the middle part of the supporting shaft 3 is provided with an annular step 301 for axially supporting the lower end of the inner ring of the bearing 204.

Preferably: the upper end of the outer ring of the bearing 204 is provided with a bearing gland 205, the bearing gland 205 is connected with the rotating arm 202, the upper end of the bearing gland 205 on the support shaft 3 is provided with a friction sleeve 206, the upper end of the friction sleeve 206 on the support shaft 3 is provided with a locking ring 207, and the locking ring 207 is connected with the support shaft 3 through a locking bolt 208.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A chimney non return device, includes hood (4), its characterized in that: the smoke guiding device is characterized by further comprising a smoke guiding assembly (2), wherein the hood (4) is connected with the base (1) through a supporting shaft (3); lead cigarette assembly (2) and include rotor arm (202), choke plate (201) are installed to rotor arm (202) one end, choke plate (201) be circular arc and circular arc axis with back shaft (3) are coaxial, oar blade (203) are installed to the rotor arm (202) other end, oar blade (203) are straight plate-type and with rotor arm (202) centering parallel, rotor arm (202) middle part is passed through bearing (204) rotatable the installation on back shaft (3).

2. A chimney backstop device according to claim 1, characterized in that: the base (1) is in a cross shape, and the base (1) is formed by welding hollow square tubes.

3. A chimney backstop device according to claim 1, characterized in that: and a tension bolt (5) is arranged between the bottom end of the supporting shaft (3) and the base (1).

4. A chimney backstop device according to claim 1, characterized in that: and the middle part of the support shaft (3) is provided with an annular step (301) for axially supporting the lower end of the inner ring of the bearing (204).

5. A chimney backstop device according to claim 1, characterized in that: the bearing support device is characterized in that a bearing gland (205) is arranged at the upper end of the outer ring of the bearing (204), the bearing gland (205) is connected with the rotating arm (202), a damping sleeve (206) is arranged at the upper end of the bearing gland (205) on the support shaft (3), a locking ring (207) is arranged at the upper end of the damping sleeve (206) on the support shaft (3), and the locking ring (207) is connected with the support shaft (3) through a locking bolt (208).