CN201462111U - Check valve for external flue - Google Patents

Abstract

The utility model relates to a check valve for an external flue, which comprises a valve body and a valve plate (3) arranged in the valve body, wherein an oil smoke passage is arranged in the valve body, the valve body comprises an air intake interface (1) and a valve cavity (2) which are connected, a circle of limit edges (22) extending outwards is formed on the edge of an air intake passage (11), the upper end (31) of the valve plate (3) is rotatably connected on the limit edges (22) and covered on the air intake passage (11), and an mounting component is arranged at the second end of the valve cavity (2). The check valve for an external flue does not occupy the space of the common passage, thereby ensuring that the smoke smoothly flows; and the utility model effectively solves the problem of taint of odor due to smoke pouring, prevents the check valve from being affected by sundries and smoke in the flue; and also has the advantages of improved working environment, longer service life and convenient maintenance.

Description

A kind of external flue check valve

Technical field

The utility model relates to a kind of check valve for flue, especially refers to a kind of external flue check valve that can be installed in fully outside the common flue.

Background technique

Present multilayer, high residential building all use common flue to concentrate and discharge the flue gas that range hood produces, the oil smoke gas that each resident family produces when cooking is cooked is drained into a common flue by the air outlet tube of range hood with oil smoke gas, and the outlet port from top layer is discharged to the external world at last.Flue gas in the common flue can enter into the air outlet tube of range hood, enters then in the room of each resident family, causes down cigarette, taint of odour but sometimes.For preventing that this phenomenon from taking place, just needing a kind ofly only for the unidirectional check valve for flue that passes through of flue gas, is that the Chinese utility model patent " the unidirectional check valve in residence discharge road " of ZL200420114832.8 (notification number is CN2758569Y) discloses so a kind of one-way valve that is applicable on the flue as the patent No..This check valve for flue comprises valve body and valve block, be provided with the oil smoke passage in the valve body, the two ends of oil smoke passage are respectively intake grill and exhaust outlet, described valve block is rotatably connected to the air opening end of valve body by the rotating shaft of valve block upper end, the present position had extended the extension forward when the air opening end of described valve body was in closed condition from described valve block, and the present position formed retaining convex rib when corresponding described valve block was in closed condition in the described exhaust outlet.This check valve for flue can be washed valve block open from the inboard and discharge swimmingly by the oil smoke gas that range hood is discharged when kitchen ventilator is worked; And when kitchen ventilator was not worked, valve block was closed automatically, and the concentrated exhaust of common flue is collaborated mutually, the problem of smoke blowing because of using thereby can effectively solve resident family.

During this check valve for flue as installed, the sidewall of valve body and shared flue takes place fixing, the intake grill of valve body and the air outlet tube of range hood join, extend among the common flue and the main body of valve body is parts such as exhaust outlet and valve block, check valve for flue itself has just taken the space of common flue; If have the finishing foreign material to fall, will damage the part that check valve is positioned at common flue, and, also be not easy to the maintenance of check valve because the maintenance man can't enter in the common flue from common flue; Critical pieces such as valve are exposed among the common flue, can be subjected to the oil smoke in the common flue, the harmful effect of air-flow, working environment is not ideal enough, cause the reduction in working life, especially under the valve open state, the passing from bottom to top oil smoke of Long contact time makes oil droplet be bonded on the valve easily, and valve is bonded on the valve body, influences the check valve proper functioning.

In addition, existing general in the check valve for flue of usefulness and the installation on common flue, as shown in Figure 1, valve body 1 ' and valve 2 ' are located in the common flue 3 ', have occupied certain space, because the cross section of common flue is more limited, the position passage at check valve place obviously diminishes, and influences the smooth circulation of flue gas, particularly under the state of valve open, particularly evident, the valve after opening hinders the rising circulation of flue gas longitudinally.Also there is this drawback in the check valve of above-mentioned patent, can imagine, when the shared vertical common flue of multilayer, the valve of every layer of check valve is all opened under the state of work, can have a strong impact on the unimpeded of common flue.

Summary of the invention

Technical problem to be solved in the utility model is that main body is positioned at external flue check valve outside the common flue when providing a kind of the installation at above-mentioned prior art present situation, this check valve does not take the space of common-use tunnel, guarantee the unimpeded of flue gas circulation, it is when effectively solving the taint of odour of falling the cigarette, prevent that check valve is subjected to the harmful effect of foreign material, flue gas in the common flue, working environment improves, and working life is longer, also conveniently safeguards.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: this external flue check valve, comprise valve body and be arranged on the interior valve block of valve body, wherein, be provided with the oil smoke passage in the valve body, it is characterized in that: described valve body comprises air intake interface section and the valve pocket part that is connected, described oil smoke passage is made up of air intake passage that is positioned at the air intake interface section and the air-out passage that is positioned at valve pocket part, and in the joint of first end of air intake interface section and valve pocket part, be formed with one along the edge of air intake passage and enclose the position-limited edge that extends out;

The upper end of described valve block is rotatably connected on the interior position-limited edge of valve body and can covers air intake passage;

And, also be provided with on second end of described valve pocket part valve body be installed in mounting assembly on the sidewall of common flue.

The size of described air-out passage can be greater than the size of air intake passage, to form described position-limited edge, the size of described air-out passage also can be enclosed the position-limited edge that extends out as long as be formed with one in the joint of air intake passage and air-out passage less than the size of air intake passage entry end.

For guaranteeing that valve block can cover air intake passage better, described valve block is arranged in the valve body to good to the valve pocket part obliquely with its lower end, self gravitation by valve block can cover on the position-limited edge, and the angle of inclination between valve block and the valve pocket part base is good with 110 degree.

As further improvement, the cross section of described air intake interface section can be rounded, and the socket that can be complementary with the air outlet tube of range hood, the cross section of described valve pocket part can be square, make valve pocket partly have bigger air-out passage, and the end of valve pocket part is square, and be convenient to take place fixing with the sidewall of shared flue, so, air intake passage in the joint of air intake interface section and valve pocket part with regard to ovalize.

Mounting assembly can adopt existing various technology and check valve is fixedly mounted on the sidewall of common flue on the described valve body end face, but for making fixed installation more reliable, described mounting assembly can comprise a circle flanging of second end that is connected the valve pocket part and relatively be arranged on two interior clamping bars of common flue, be clamped between clamping bar and the flanging by the sidewall of stay bolt, thereby whole check valve be fixedly mounted on the sidewall of common flue common flue.

Consider cost and overall weight, the sidewall of valve body part can be too not thick, if thereby the width of flanging equates with the sidewall thickness of valve body, can make mounting assembly not enough to the active force area of common flue, for making flanging have bigger lifting surface area, described flanging valve pocket part relatively and broadens flanging to four side evaginations, thereby mounting assembly can partly be fixed on valve body on the common flue more firmly.

Existing variety of way can be adopted with being rotatably connected of position-limited edge of valve body in described valve block upper end, such as adopting modes such as pivotally connected, but it is more smooth for valve block is opened, action puts in place more, can be provided with a pivoted arm on the lee face of the upper end of described valve block, and the position-limited edge of described valve body is provided with a bearing, this pivoted arm and bearing are hinged together by bearing pin, thereby make being rotatably connected by hinging manner between described valve block upper end and the valve body position-limited edge, compared with pivotally connected other Placement that waits, because freely rotating of pivoted arm relative to bearing and position-limited edge, make that the amplitude opened of valve block is bigger, guaranteed ventilation.

Can also be arranged with a circle seal ring on the described valve block outer edge, guarantee sealing effect.

For guaranteeing the complete closure of valve block, prevent the valve block accident from opening and produce air leakage phenomena, described position-limited edge can be provided with a magnet at the other end of relative bearing, and the lower end of described valve block is a ferromagnetic substance in the position of corresponding magnet at least, for the purpose of convenient, described valve block integral body can be made by ferromagnetic substance, so, when valve block is about to close and during from the close together of position-limited edge, valve block can be closed by attraction immediately, by the attraction force of magnet, and prevent that effectively valve block from being opened by accident to the valve block lower end.

Compared with prior art, the utility model belongs to external flue check valve, by on the end face of valve pocket part, mounting assembly being set, make check valve can clamp the common flue wall and fixedly mount, and main body is positioned at outside the common flue, this check valve does not take the space of common-use tunnel, guarantee the unimpeded of flue gas circulation, it is when effectively solving the taint of odour of falling the cigarette, prevent that check valve is subjected to the harmful effect of foreign material, flue gas in the common flue, working environment improves, and working life is longer, also conveniently safeguards; Simultaneously, the utility model is provided with a circle position-limited edge by the joint between air-out passage and air intake passage, and this position-limited edge makes things convenient for the setting of hinge connected element, has guaranteed that also the edge of valve block can cover on the position-limited edge fully, and air intake passage is blocked, realize the purpose of one-way valve.

Description of drawings

Fig. 1 is the scheme of installation of existing check valve for flue in common flue;

Fig. 2 is the utility model embodiment's a structural representation;

Fig. 3 is the utility model embodiment's a partial sectional view;

Fig. 4 is the schematic representation under Fig. 3 middle valve plate full open position;

Fig. 5 is applied to structural representation in the common flue for the utility model embodiment.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 2～shown in Figure 5, this external flue check valve comprises valve body and is obliquely installed valve block 3 in valve body, is provided with the oil smoke passage in the valve body;

Wherein, described valve body is formed by connecting by air intake interface section 1 and valve pocket part 2, the cross section of described air intake interface section 1 is rounded, the cross section of described valve pocket part 2 is square, so, described oil smoke passage just is made up of rounded air intake passage 11 that is positioned at air intake interface section 1 and the air-out passage 21 that is square that is positioned at valve pocket part 2, the joint of first end of air intake passage 11 and air-out passage 21 is for being obliquely installed ovalize, and, in the air intake interface section 1 with the joint of first end of valve pocket part 2, edge along air intake passage 11 forms the position-limited edge 22 that a circle extends out;

Described valve block 3 is arranged in the valve body with its lower end 32 to valve pocket part 2 obliquely, angle of inclination between valve block 3 and valve pocket part 2 bases is 110 degree, and the upper end 31 of described valve block 3 is rotatably connected on the interior position-limited edge 22 of valve body and can covers air intake passage 11, specifically be, the lee face of described valve block 3 upper ends 31 is provided with a pivoted arm 4, and the position-limited edge 22 of described valve body is provided with a bearing 5, this pivoted arm 4 is hinged together by bearing pin 41 with bearing 5, thereby valve block 3 upper ends 31 are connected rotationally with position-limited edge 22, and can make valve block 3 unidirectional opening, realization air intake passage 11 is communicated with or partition with air-out passage 21, referring to Fig. 3 and Fig. 4;

Described valve block 3 outer edges also are arranged with a circle seal ring 33, on described position-limited edge 22 outer surfaces, be provided with a magnet 7 at the relative the other end of bearing 5, adopt the ferromagnetic substance manufacturings and described valve block 3 is whole.

Simultaneously, also be provided with mounting assembly on second end of described valve pocket part 2, mounting assembly comprise be connected valve pocket part 2 second end on a circle flanging 23 and relatively be arranged on two interior clamping bars 24 of common flue A, described flanging 23 relative valve pocket parts 2 are to four side evaginations, make the width of flanging 23 bigger than the thickness of valve pocket part 2, be clamped between clamping bar 24 and the flanging 23 by the sidewall of four stay bolts 6, thereby whole check valve be fixedly mounted on the sidewall of common flue A common flue A;

During as installed, air intake interface section 1 seals linking mutually with the air outlet tube B of range hood, the air-out passage 21 of valve pocket part 2 is relative with opening on the shared flue A, when range hood is worked, valve block 3 is opened to common flue A one side, air intake passage 11 be communicated with air-out passage 21 and with the fume emission in the range hood in common flue A, when range hood is not worked, valve block 3 is closed air intake passage 11 and air-out passage 21 is cut off, thereby prevents that flue gas enters in the air outlet tube B of range hood in the common flue A.

Claims (8)

1. external flue check valve, comprise valve body and be arranged on the interior valve block (3) of valve body, wherein, be provided with the oil smoke passage in the valve body, it is characterized in that: described valve body comprises the air intake interface section (1) and valve pocket part (2) that is connected, described oil smoke passage just is made up of air intake passage that is positioned at air intake interface section (1) (11) and the air-out passage (21) that is positioned at valve pocket part (2), and in the joint of air intake interface section (1) and first end of valve pocket part (2), enclose the position-limited edge (22) that extends out along the edge formation one of air intake passage (11);

The position-limited edge (22) that the upper end (31) of described valve block (3) is rotatably connected in the valve body upward also can cover air intake passage (11);

And, also be provided with on second end of described valve pocket part (2) valve body be installed in mounting assembly on the sidewall of common flue (A).

2. external flue check valve according to claim 1 is characterized in that: described valve block (3) is arranged in the valve body to valve pocket part (2) obliquely with its lower end.

3. external flue check valve according to claim 1 is characterized in that: the cross section of described air intake interface section (1) is rounded, and the cross section of described valve pocket part (2) is square.

4. external flue check valve according to claim 1, it is characterized in that: described mounting assembly comprises the circle flanging (23) on second end that is connected valve pocket part (2) and relatively is arranged on interior two clamping bars (24) of common flue (A), is clamped between clamping bar (24) and the flanging (23) by the sidewall of stay bolt (6) with common flue (A).

5. external flue check valve according to claim 4 is characterized in that: the relative valve pocket part of described flanging (23) (2) is to four side evaginations.

6. according to the described external flue check valve of arbitrary claim in the claim 1 to 5, it is characterized in that: the mode of being rotatably connected between the position-limited edge (22) of described valve block (3) upper end and valve body is specially: the lee face of the upper end (31) of described valve block (3) is provided with a pivoted arm (4), and the position-limited edge of described valve body (22) is provided with a bearing (5), and this pivoted arm (4) is hinged together by bearing pin (41) with bearing (5).

7. external flue check valve according to claim 6 is characterized in that: also be arranged with a circle seal ring (33) on described valve block (3) outer edge.

8. external flue check valve according to claim 6, it is characterized in that: described position-limited edge (22) is provided with a magnet (7) at the other end of relative bearing (5), and the lower end (32) of described valve block (3) is a ferromagnetic substance in the position of corresponding magnet (7) at least.

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