CN209706162U

CN209706162U - A kind of systems stabilisation of range hood fire prevention valve block

Info

Publication number: CN209706162U
Application number: CN201920026018.7U
Authority: CN
Inventors: 何立博
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-01-04
Filing date: 2019-01-04
Publication date: 2019-11-29
Anticipated expiration: 2029-01-04

Abstract

The utility model relates to a kind of systems stabilisations of range hood fire prevention valve block, including range hood, fire resisting damper, air guide member and sucker with blower, fire resisting damper includes valve body and the valve block that is arranged on valve body, valve body is provided with the air outlet being connected with smoke outlet, valve block can be rotated relative to valve body, to open or close the air outlet；Air guide member is located at the air inlet of blower, and the air guide member has cavity, and the ventilation opening being connected with cavity is provided in the position of its leeward；The first end of guide duct is connected with air guide member, and the guide duct is connected with the cavity of air guide member；The position of corresponding valve block lateral surface is arranged in sucker, and is connected with the second end of guide duct.The kitchen ventilator of the utility model is under normal operating conditions, and larger negative pressure is generated at air inlet, and sucker is sucked valve block and valve block is made to keep stablizing angle, it is not easy to cause valve block angle jitter and changes in flow rate, reduce noise.

Description

A kind of systems stabilisation of range hood fire prevention valve block

Technical field

The utility model relates to a kind of fire resisting dampers, and in particular to a kind of systems stabilisation of range hood fire prevention valve block.

Background technique

Each family kitchen discharged lampblack outlet of present building resident, is all a discharge flue being connected to up and down, in order to It prevents the oil smoke in gas flue from blowing back into kitchen, is both provided between the outlet mouth of pipe and common flue of smoke exhaust ventilator as cigarette Device as road check (non-return) valve.

Existing check valve for flue generally comprises the oil smoke channel being made of shell, which has opposite air inlet Mouthful and air outlet, the outlet mouth of pipe of smoke exhaust ventilator is connected on air inlet, air outlet is extend into public gas flue, in oil smoke channel Valve block able to turn on or off is provided at air outlet, (authorization is public by current single valve chip architecture such as Patent No. ZL201520807525.6 A kind of Chinese utility model patent " kitchen ventilator fire-proof valve for flue " of the announcement number for CN205064972U), the kitchen ventilator flue Fire resisting damper includes prevent fires valve body and the flue chovr body being mounted on fire prevention valve body, and being equipped on fire prevention valve body can opposite fire prevention The fire prevention valve block of valve body rotation is equipped with fixed bracket on fire prevention valve body, is equipped with elastic component and pressure on fixed bracket Closure member is also equipped with Fuse assembly on fire prevention valve body, under Fuse assembly unblown state, forcibly closes part limit molten On disconnected component and it is detached from fire prevention valve block, in the case where Fuse assembly is in blown state, part is forcibly closed and is detached from Fuse assembly and in bullet Property part under the action of forcibly close fire prevention valve block.For the fire resisting damper of above-mentioned patent when kitchen ventilator works normally, valve block is by cooking fume Stream is opened, and valve block can only maintain certain opening angle, and the fluctuation of oil smoke air-flow may easily cause the change of valve block opening angle Change, i.e., valve block may easily be swung.

In order to solve the above-mentioned technical problem, as (Authorization Notice No. is Patent No. ZL201020055422.6 CN201614724 Chinese utility model patent " a kind of siphon negative pressure type check-valves for exhaust gas flue "), the check-valves packet Include unidirectional no power exhaust fan and check valve, unidirectional no power exhaust fan is mounted on one side on the inside of flue gas exhaust pipeline, and face is into cigarette Mouthful, to be installed back into flue gas mouth in the location status rotated clockwise, to pacify into generation negative pressure, check valve at flue gas mouth It is located at flue gas exhaust pipeline outside one side, valve block opening direction direction smoke evacuation one side of tracheae mounted in into flue gas mouth.Above-mentioned patent No power exhaust fan is to make valve block towards the unlatching of smoke evacuation tracheae by the negative pressure of floss hole, but floss hole negative pressure is mainly By lower stream of airflow up flow drive fan rotation caused by negative pressure, caused by negative pressure it is generally smaller, fume-exhausting The booting variation fluctuation of machine greatly, can make the unlatching of valve block there is a situation where unstable.

Therefore, it is necessary to be improved further to the existing fire resisting damper for range hood.

Utility model content

First technical problem to be solved in the utility model is in view of the above-mentioned state of the art, to provide a kind of valve Piece, which is opened, to be stablized, and is not easy the systems stabilisation of the range hood fire prevention valve block by interference in air flow.

Second technical problem to be solved in the utility model is in view of the above-mentioned state of the art, to provide one kind and subtract Systems stabilisation of the small oil smoke to the range hood fire prevention valve block of sucker open impact.

Third technical problem to be solved in the utility model is in view of the above-mentioned state of the art, to provide a kind of mistake Filter enters the systems stabilisation of the range hood fire prevention valve block of the oil smoke of suction cup interior.

4th technical problem to be solved in the utility model is in view of the above-mentioned state of the art, to provide a kind of anti- The systems stabilisation for the range hood fire prevention valve block that only smell is entered the room through sucker.

5th technical problem to be solved in the utility model is in view of the above-mentioned state of the art, to provide one kind and subtract Small air guide member is to the impact for entering blower interior air-flow while reducing the steady of the range hood fire prevention valve block being vortexed at air inlet Determine system.

The utility model solves technical solution used by above-mentioned first technical problem are as follows: a kind of range hood fire resisting damper The systems stabilisation of piece, including range hood and fire resisting damper with blower, the fire resisting damper passes through the row of smoke pipe and range hood Mouth is connected, and the fire resisting damper includes the valve body being connected with smoke pipe and the valve block that is arranged on valve body, and the valve body is opened There is the air outlet being connected with smoke outlet, the valve block can be rotated relative to valve body, to open or close the air outlet, feature It is to further include having air guide member, guide duct and sucker, wherein

The air guide member is located at the air inlet of blower, and the air guide member has cavity, and is provided on its leeward The ventilation opening being connected with cavity；

The first end of the guide duct is connected with air guide member, and the guide duct is connected with the cavity of air guide member；

The position of corresponding valve block lateral surface is arranged in the sucker, and is connected with the second end of guide duct.

Air outlet can be connected with outdoor, can also be connected with common flue, it is generally the case that the air outlet with The smoke inlet of common flue is connected, and the fire resisting damper is arranged at the smoke inlet, in the case where range hood is in running order, institute The valve block for stating fire resisting damper is rotated relative to valve body into common flue, and the sucker is located in common flue, and the sucker is into cigarette Mouthful orthographic projection part in the plane be located in the smoke inlet.

In a non-operative state, valve block can close air outlet, the upper end of the valve block by self gravity to range hood It is connected on valve body, and the sucker is opening down.

The utility model solves technical solution used by above-mentioned second technical problem are as follows: the opening of the sucker is set There is deflector.

Oil smoke impacts directly up from bottom in order to prevent, the deflector is arc-shaped and concave surface downward.In this way, arcwall face Face generates the Coanda effect for having guidance to flue gas, is preferably sucked into sucker bottom oil smoke through arcwall face, reduces The impact of the oil smoke of sucker opening.

The utility model solves technical solution used by above-mentioned third technical problem are as follows: the deflector is arcuately square To opposite sides all have the side plate extended downwardly, two blocks of side plates are connected with the corresponding wall of sucker, and wherein at least one Side plate offers the ventilation hole being connected with guide duct.

Greasy dirt accumulates in sucker in order to prevent, is enclosed sky between side plate described in two pieces and the corresponding wall of sucker Chamber, the ventilation hole are gradually obliquely installed to far from cavity side from top to bottom.In this way, oil smoke is filtered after ventilation hole The greasy dirt to get off flows back to flue by least significant end ventilation hole again, greasy dirt is prevented to be accumulated on ventilation hole.

The utility model solves the first scheme used by above-mentioned 4th technical problem are as follows: is arranged on the air guide member There is the lid that can open or close the ventilation opening, the upper end of the lid is connected on the air guide member.At range hood Under off working state, in guide duct under equilibrium state, lid can close ventilation opening under self gravity.

The utility model solves technical solution used by above-mentioned 5th technical problem are as follows: the bottom of the air guide member has There is guide face.

The utility model solves second scheme used by above-mentioned 4th technical problem are as follows: the side of the deflector It is rotatably connected on sucker, the other side of the deflector can be inwardly transferred to opening the opening within sucker, be turned out The opening is closed to when being open in perpendicular plane.

Compared with the prior art, the advantages of the utility model are: the systems stabilisation of range hood fire prevention valve block includes Air guide member and sucker, in the case where kitchen ventilator is in normal operating conditions, blower work, and biggish bear is generated in its air inlet Pressure, guide duct is interior to form negative pressure state, and sucker is made to have suction；Meanwhile the air-flow flowed out through air outlet can be by fire resisting damper Valve block is pushed open, and valve block is in neighbouring maximum folding angle, and valve block can be attracted under suction of sucker or so to keep stable at this time Angle, realizes maximum opening of the valve block angle under open state, i.e. valve block is not easy under the suction of sucker after opening Cause angle jitter, reduce the fluctuation of air-flow sound, reduces noise fluctuations bring sense of discomfort.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment one；

Fig. 2 is the partial structure diagram (under air outlet is in the open state) of the utility model embodiment one；

Fig. 3 is the partial structure diagram of Fig. 2；

Fig. 4 is the partial structure diagram (air outlet is in close state down) of the utility model embodiment one；

Fig. 5 be the utility model embodiment one sucker and air guide member assembling structure schematic diagram (air outlet be in open Under state)；

Fig. 6 be the utility model embodiment one sucker and air guide member assembling structure schematic diagram (air outlet be in close Under state)；

Fig. 7 is the structural schematic diagram of the air guide member of the utility model embodiment one；

Fig. 8 is the structural schematic diagram of another angle of Fig. 7；

Fig. 9 is the cross-sectional view of the sucker of the utility model embodiment one；

Figure 10 is the dimensional decomposition structure diagram of the sucker of the utility model embodiment one；

Figure 11 is the cross-sectional view of the sucker of the utility model embodiment two.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.

Embodiment one:

It as shown in Figures 1 to 10, is one embodiment of the utility model.

The embodiment range hood fire prevention valve block systems stabilisation include positioned at interior 8 range hood 1, fire resisting damper 2, Air guide member 4, sucker 5 and guide duct 6, fire resisting damper 2 are connected by smoke pipe 3 with the smoke outlet of range hood 1.

Fire resisting damper 2 includes the valve body 21 being connected with smoke pipe 3 and the valve block being arranged on valve body 21 22, and valve body 21 is provided with The air outlet 211 being connected with smoke outlet, air outlet 211 are connected with the smoke inlet 71 of common flue 7, wherein 22 energy of valve block It is rotated relative to valve body 21, to open or close air outlet 211, the upper end of the valve block 22 in the present embodiment is connected on valve body 21.

The range hood 1 has blower 11, which is centrifugal blower, which has is connected with smoke outlet Air inlet 111, air guide member 4 are located at the air inlet 111 of blower 11, and there is the air guide member 4 cavity 4a, cavity 4a to have ventilation Mouth 41, air guide member 4 have windward side and leeward, which offers the ventilation that cavity 4a is connected on its leeward Mouth 41, which is connected with air inlet 111；The first end of guide duct 6 is connected with air guide member 4, and the guide duct 6 with The cavity 4a of air guide member 4 is connected.

The position of corresponding 22 lateral surface of valve block is arranged in sucker 5, and the sucker 5 is connected with the second end of guide duct 6, then The sucker 5 is connected by guide duct 6 with the cavity 4a of air guide member 4, and sucker 5 is located at the upper end of proximate valve body 21, and the sucker 5 Opening 51 downward, in the case where range hood is in running order, negative pressure is formed in guide duct 6, so as to make sucker 5 with it is corresponding The attracted connection of the lateral surface of valve block 22.Specifically, valve block 22 can opposite valve body 21 be rotated up to 5 direction of sucker turn to Sucker is connected, and realizes that stablizing for valve block is opened, in addition, the sucker 5 is where smoke inlet 71 in order to realize that sucker can be sucked Orthographic projection part in plane is located in smoke inlet 71.In the present embodiment, sucker 5 is located in common flue 7.

In order to reduce oil smoke to sucker open impact, deflector 52 is equipped at the opening 51 of sucker 5, deflector 52 is in arc Shape and concave surface is downward, flow direction of the oil smoke after deflector arrow direction as shown in Figure 10.Specifically, 52 edge of deflector The opposite sides of arcuate directions all has the side plate 53 extended downwardly, and two blocks of side plates 53 are connected with the corresponding wall of sucker 5, and its In at least one side plate 53 offer the ventilation hole 531 being connected with guide duct 6, in addition, two blocks of side plates 53 are corresponding with sucker 5 The cavity 54 being connected with ventilation hole 531 is formed between side wall.Greasy dirt accumulates in sucker in order to prevent, above-mentioned ventilation hole 531 are gradually obliquely installed to far from 54 side of cavity from top to bottom, so that oil smoke be made to be filtered after ventilation hole 531 Greasy dirt, by ventilation hole 531 again drain back in common flue 7, prevent greasy dirt to be accumulated on ventilation hole 531, the flowing of greasy dirt Direction direction as shown by the arrows in Figure 9.In addition, the thickness direction of the center line of above-mentioned ventilation hole 531 and corresponding side plate 53 Formed angle is α, and wherein for the value range of α in 5 °~30 °, preferably α is 10 °, at this point, on the one hand facilitating oil smoke through divulging information Hole enters in sucker, and on the other hand, the greasy dirt being filtered after ventilation hole is back in common flue 7.

Smell or oil smoke enter the room 8 through sucker in order to prevent, and ventilation can be opened or closed by being provided on air guide member 4 The lid 42 of mouth 41, lid 42 is gradually tilted to the side far from cavity 4a from top to bottom, and the upper end of the lid 42 is connected to On air guide member 4.In the case where range hood is in off working state, in guide duct under equilibrium state, lid 42 can be in itself weight Ventilation opening 41 is closed under power, in the present embodiment, lid 42 is obliquely installed from top to bottom and towards 111 side of air inlet.In order to Impact of the air guide member to range hood body turning road blower interior air-flow is reduced, the bottom of air guide member 4 has guide face 43, water conservancy diversion Face 43 is V-shaped, or convex arc under being in, and the V-arrangement angle of above-mentioned guide face 43 is 40 °~85 °.The presence of above-mentioned guide face 43 The whirlpool at air inlet can be abolished to a certain extent, reduce contribution of the vortex to noise.

Embodiment two:

It as shown in figure 11, is second embodiment of the utility model.The difference of the embodiment and above-described embodiment one is only Be: the implementation for preventing smell or oil smoke from entering the room 8 through sucker 5 is different, and specifically, the side of deflector 52 rotates It is connected on sucker 5, the other side of deflector 52 can be inwardly transferred to opening opening 51 within sucker 5, be pivoted outwardly to and open Opening 51 is closed when in 51 perpendicular planes of mouth.Deflector 52 can be to 5 inner rotation of sucker, by changing the big of opening 51 It is small, prevent oil smoke from entering through 5 mouthfuls of sucker.

Claims

1. a kind of systems stabilisation of range hood fire prevention valve block, including range hood (1) and fire resisting damper with blower (11) (2), the fire resisting damper (2) is connected by smoke pipe (3) with the smoke outlet of range hood (1), the fire resisting damper (2) include with The valve body (21) that smoke pipe (3) is connected and the valve block (22) being arranged on valve body (21), the valve body (21) is provided with and smoke outlet The air outlet (211) being connected, the valve block (22) can rotate relative to valve body (21), to open or close the air outlet (211), it is characterised in that: further include having air guide member (4), guide duct (6) and sucker (5), wherein

The air guide member (4) is located at the air inlet (111) of blower (11), and the air guide member (4) has cavity (4a), and The position of its leeward is provided with the ventilation opening (41) being connected with the cavity (4a)；

The first end of the guide duct (6) is connected with air guide member (4), and the chamber of the guide duct (6) and the air guide member (4) Body (4a) is connected；

Sucker (5) setting is connected in the position of corresponding valve block (22) lateral surface with the second end of guide duct (6).

2. the systems stabilisation of range hood fire prevention valve block according to claim 1, it is characterised in that: the air outlet (211) it is connected with the smoke inlet (71) of common flue (7), the fire resisting damper (2) is arranged at the smoke inlet (71), described anti- The rotation into common flue (7) relative to valve body (21) of the valve block (22) of fiery valve (2)；

The sucker (5) is located in common flue (7), and the sucker (5) smoke inlet (71) orthographic projection portion in the plane Quartile is in the smoke inlet (71).

3. the systems stabilisation of range hood fire prevention valve block according to claim 1 or 2, it is characterised in that: the valve block (22) upper end is connected on valve body (21), and the opening (51) of the sucker (5) is downward.

4. the systems stabilisation of range hood fire prevention valve block according to claim 3, it is characterised in that: the sucker (5) It is open at (51) equipped with deflector (52).

5. the systems stabilisation of range hood fire prevention valve block according to claim 4, it is characterised in that: the deflector (52) Arc-shaped and concave surface is downward.

6. the systems stabilisation of range hood fire prevention valve block according to claim 5, it is characterised in that: the deflector (52) Arcuately the opposite sides in direction all has the side plate (53) extended downwardly, two pieces of side plates (53) with the corresponding wall of sucker (5) It is connected, and wherein at least one side plate (53) offers the ventilation hole (531) being connected with guide duct (6).

7. the systems stabilisation of range hood fire prevention valve block according to claim 6, it is characterised in that: side plate described in two pieces (53) it is enclosed between the corresponding wall of sucker (5) cavity (54), the ventilation hole (531) is from top to bottom gradually to far from empty Chamber (54) side is obliquely installed.

8. the systems stabilisation of range hood fire prevention valve block according to claim 1, it is characterised in that: the air guide member (4) On be provided with the lid (42) that can open or close the ventilation opening (41), the upper end of the lid (42) is connected to the wind-guiding On part (4).

9. the systems stabilisation of range hood fire prevention valve block according to claim 8, it is characterised in that: the air guide member (4) Bottom have guide face (43).

10. the systems stabilisation of range hood fire prevention valve block according to claim 4, it is characterised in that: the deflector (52) side is rotatably connected on sucker (5), and the other side of the deflector (52) can be inwardly transferred to beating within sucker (5) The opening (51) is closed when opening the opening (51), being pivoted outwardly in the plane perpendicular with opening (51).