CN2795588Y

CN2795588Y - Stop valve of air exhaust path

Info

Publication number: CN2795588Y
Application number: CN 200520016136
Authority: CN
Inventors: 葛福祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-15
Filing date: 2005-04-15
Publication date: 2006-07-12
Anticipated expiration: 2015-04-15

Abstract

The utility model relates to a check valve used in an air exhausting duct, particularly a check valve which is used for the air exhausting duct of a fume exhauster. The utility model has the technical scheme that the utility model comprises a check valve body (1), an inserting plate (3) and wind screens (5), wherein the side surface of the check valve body (1) is provided with an inserting opening (2) which for an angle with the air flow direction of the check valve, and the angle is an acute angle; the inserting plate (3) is mutually matched with the inserting opening (2) and is a hollow ring, the outer ring of the inserting plate is larger than the inner cavity of the check valve, and more than two cardinal axes (4) are arranged on the inserting plate; each cardinal axis is hinged with a wind screen (5) which is swung around the cardinal axis, and the size of the wind screens are matched with inner rings of the inserting plate. Because the acute angle is between the inserting plate and the airflow direction of the check valve, the utility model is convenient for the down flow of oil soil and the increase of the check effect. The inserting plate can be extracted when cleaning is required, and the utility model is convenient for cleaning a blocking plate and a screen net. A flow guiding slot for the oil soil is convenient for collecting the oil soil in the check valve. The utility model has the characteristics of reasonable structure, convenient installation and cleaning, good checking effect, convenient collection of the oil soil, etc. The utility model is suitable for various air exhausting ducts.

Description

The air exhaust channel check valve

Affiliated technical field:

The utility model relates to the check valve that the check valve that uses in a kind of air exhaust channel, particularly range hood air exhaust channel use.

Background technique:

At present, the check valve that uses in the air exhaust channel generally is made up of check valve case, barge board, the air exhaust channel of range hood for example, when by the outside forced-ventilated wind of air exhaust channel, the check valve barge board is opened, and when stopping air draft, the barge board of check valve is closed, existing problems are that barge board cleans inconvenience, need the integral demounting check valve.For this reason, the someone designs the safety check of spile type, for example Chinese utility model patent 03266357.9 " air outlet flue safety check ", but there is major defect in design, and the effect of non-return and air draft is bad, and in addition, it is also very inconvenient that the greasy dirt in the safety check is collected.

The model utility content:

The utility model purpose provides a kind of air exhaust channel check valve, and it is convenient to install and clean, and air draft and check are effective, is convenient to greasy dirt and collects, and solves the problems referred to above that exist in the background technique.

The technical solution of the utility model is: the air exhaust channel check valve is formed and is comprised check valve case, plate, barge board, the side of check valve case have and the check valve airflow direction between angled socket, this angle is an acute angle, plate and socket mate mutually, be after plate inserts check valve case by socket, acutangulate between plate and the check valve airflow direction, plate is the hollow annular plate, the outer shroud of plate is greater than the check valve inner chamber, on the ring-type plate hinge is set, be hinged with barge board on the hinge, barge board can be swung on plate around hinge, and ring is complementary in the size of barge board and the plate.

Plate inserts behind the check valve by socket and the angle between the check valve airflow direction is 45-85 °.The above hinge of the twice that be arranged in parallel on the ring-type plate, a hinged barge board on the per pass hinge improves check effect and ventilation effect.

The shape of ring-type plate is arbitrarily, can be ring, also can be square annular plate, can also be the annular plate of interior round foreign side, or round outside but spuare inside annular plate.The shape of barge board also is arbitrarily, can be rectangle, also can be circular.

Can on the check valve case side, have the twice socket, be provided with two plates and match, a plate is provided with barge board, is fixed with gauze on the ring bodies of another plate, the plate that is provided with gauze is positioned at check valve and leads to an outdoor end, is used to stop the sand and dust foreign material.

Can fixedly install gauze on the ring-type plate, in the cavity of check valve hinge is set, hinge is provided with barge board, and the size of barge board and the inner chamber of check valve are complementary.The check valve cavity that is provided with hinge and barge board part can also be separated with the check valve cavity that is provided with plate, gauze part, two-part check valve cavity connects (or otherwise connecting) by mother-son mouth, bolt, is convenient to disassembly, cleaning.Two-part can be distinguished use separately, and use also can be grouped together.

In the check valve cavity and be provided with in the annular plate baffle plate of barge board and gauze and be provided with the greasy dirt drainage trough on the ring edge, the drainage trough of bottom has the hole, and the oil box outer with check valve case is communicated with.

Adopt the utility model, during by the outside forced-ventilated wind of air exhaust channel, blow open by the hinged barge board of hinge, the check valve air draft is unobstructed; When stopping air draft, barge board relies on gravity to close voluntarily, owing to be acute angle between plate and the check valve airflow direction, being convenient to greasy dirt flows down and improves the check effect, can extract plate out when needing to clean, convenient baffle plate and the gauze of cleaning, the greasy dirt drainage trough is convenient to collect the greasy dirt in the check valve.

The utlity model has rational in infrastructure, install to clean convenient, check and air draft is effective, be convenient to characteristics such as greasy dirt collection, go for various air exhaust channels.

Description of drawings:

Fig. 1 is the utility model embodiment one structural representation.

Fig. 2 is the structural representation of the utility model embodiment one centerboard.

Fig. 3 is the utility model embodiment two structural representations.

Among the figure: check valve case 1, socket 2, plate 3, hinge 4, barge board 5, handle 6.

Embodiment:

Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.

In embodiment one, the utility model is by check valve case 1, plate 3, barge board 5 is formed, the side of check valve case 1 have and the check valve airflow direction between angled socket 2, this angle is 65 ° of acute angles, plate and socket mate mutually, be after plate inserts check valve by socket, with also become 65 ° of acute angles between the check valve airflow direction, plate is the square hollow annular plate, the outer shroud of plate is greater than the check valve inner chamber, the above hinge 4 of the twice that be arranged in parallel on the ring-type plate, be hinged with a barge board 5 on the per pass hinge, barge board 5 can be swung on plate around hinge 4, and ring is complementary in the size of barge board and the plate 3, the outer rim of plate is provided with handle 6, is convenient to the pull plate.Be provided with the greasy dirt drainage trough on the ring edge in the annular plate baffle plate of barge board is set, the drainage trough of bottom has the hole, and the oil box outer with check valve case is communicated with.

In embodiment two, check valve case is divided into two-part, the composition of a part comprises check valve case 1, plate 3, another part is formed and is comprised check valve case seat 7, barge board 5, hinge 4, plate is a square-outside and round-inside shape annular plate, can fixedly install gauze on the ring-type plate, plate 3 inserts in the socket of check valve case 4 sides; Hinge 4 is set in the cavity of check valve case seat, and hinge 4 is provided with barge board 5, and barge board is circular, the size of barge board and the inner chamber of check valve are complementary, check valve case 1 and check valve case seat 7 two-part cooperate coupling by mother-son mouth, and are fixedly connected by bolt 8, are convenient to disassembly, cleaning.Two-part can be distinguished use separately, and use also can be grouped together.

Claims

1, a kind of air exhaust channel check valve, it is characterized in that forming and comprise check valve case (1), plate (3), barge board (5), the side of check valve case (1) have and the check valve airflow direction between angled socket (2), this angle is an acute angle, plate (3) mates mutually with socket (2), also acutangulate between plate and the check valve airflow direction, plate (3) is the hollow annular plate, the outer shroud of plate is greater than the check valve inner chamber, hinge (4) is set on the ring-type plate, be hinged with barge board (5) on the hinge, barge board is swung on plate around hinge, and ring is complementary in the size of barge board and the plate.

2, the air exhaust channel check valve according to claim 1 is characterized in that plate (3) is 45-85 ° by the angle that socket (2) inserts between check valve case (1) back and the check valve airflow direction.

3, according to claim 1 or 2 described air exhaust channel check valves, it is characterized in that the above hinge of twice (4) that be arranged in parallel on the said ring-type plate (3), a hinged barge board (5) on the per pass hinge.

4, according to claim 1 or 2 described air exhaust channel check valves, it is characterized in that fixedly installing gauze on the ring-type plate, in the cavity of check valve hinge is set, hinge is provided with barge board, and the size of barge board and the inner chamber of check valve are complementary.

5, the air exhaust channel check valve according to claim 4, it is characterized in that check valve case is divided into two-part, the composition of a part comprises check valve case (1), plate (3), another part is formed and is comprised check valve case seat (7), barge board (5), hinge (4), plate is circular annular plate, fixedly install gauze on the ring-type plate, plate (3) inserts in the socket of check valve case (4) side; In the cavity of check valve case seat (7), hinge is set, hinge (4) is provided with barge board (5), the size of barge board and the inner chamber of check valve are complementary, and check valve case (1) and check valve case seat (7) two-part cooperate coupling by mother-son mouth, and are fixedly connected by bolt (8).

6, according to claim 1 or 2 described air exhaust channel check valves, it is characterized in that having on the check valve case side twice socket, being provided with two plates matches, a plate is provided with barge board, be fixed with gauze on the ring bodies of another plate, the plate that is provided with gauze is positioned at check valve and leads to an outdoor end.

7, according to claim 1 or 2 described air exhaust channel check valves, it is characterized in that in the check valve cavity and be provided with in the annular plate baffle plate of barge board and gauze being provided with the greasy dirt drainage trough on the ring edge, the drainage trough of bottom has the hole, and the oil box outer with check valve case is communicated with.

8, according to claim 1 or 2 described air exhaust channel check valves, the shape that it is characterized in that barge board is a rectangular plate.