CN110553072A - Fire-proof valve for range hood - Google Patents
Fire-proof valve for range hood Download PDFInfo
- Publication number
- CN110553072A CN110553072A CN201810564180.4A CN201810564180A CN110553072A CN 110553072 A CN110553072 A CN 110553072A CN 201810564180 A CN201810564180 A CN 201810564180A CN 110553072 A CN110553072 A CN 110553072A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- closing member
- fusing
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000779 smoke Substances 0.000 claims abstract description 31
- 230000009471 action Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 12
- 230000002265 prevention Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 12
- 239000003546 flue gas Substances 0.000 abstract description 12
- 235000019504 cigarettes Nutrition 0.000 description 6
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/406—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint the fracturing member being a generally elongated member, e.g. rod or wire, which is directly connected to a movable valve member, the breaking or buckling of the elongated member allowing the valve member to move to a closed or open position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Flow Control Members (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a valve body of a fireproof valve for a range hood, which is respectively provided with a first closing member for closing a first valve plate and a second closing member for closing a second valve plate, wherein the first closing member and the second closing member are fixed on the valve body through a common fusing component and are separated from the corresponding valve plates, and when the fusing component is in a fusing state, the first closing member and the second closing member are separated from the fusing component and can drive the valve plates to rotate under the action of a first elastic part and a second elastic part so as to enable an air inlet to tend to be closed. Compared with the prior art, the invention has the advantages that: can guarantee disturbing opening of valve block, increase smoke exhaust effect, can compress tightly the valve block on the valve body reliably again under the fusing subassembly is in the fusing state, realize closing of air intake to prevent that the high temperature flue gas from getting into user's kitchen from the air intake of valve body, played the effect of isolated fire.
Description
Technical Field
The invention relates to a fire damper, in particular to a fire damper for a range hood.
Background
The oil smoke exhaust outlet of each household kitchen of the resident of the existing building is communicated with a smoke exhaust channel which is communicated up and down, and in order to prevent the oil smoke in the smoke exhaust channel from flowing back into the kitchen, a device such as a flue check valve is arranged between the air outlet pipe orifice of the smoke exhaust ventilator and the public smoke exhaust channel.
The existing flue check valve generally comprises an oil smoke channel formed by a shell, the oil smoke channel is provided with an air inlet and an air outlet which are opposite, the air inlet is connected with an air outlet pipe orifice of a smoke exhaust ventilator, the air outlet extends into a public flue, a valve plate which can be opened and closed is arranged at the air outlet of the oil smoke channel, the valve plate mainly has two structures, namely a single valve plate structure, and the structure has the following defects: when the range hood works, the valve plate cannot be completely opened, so that resistance is caused to the air exhaust of the range hood; when the negative pressure of the flue is high, the valve plate is closed slowly and not tightly, and the sealing effect is influenced. In order to solve the technical problem, a double-valve-plate structure is provided, a check valve is opened or closed by rotating around a common rotating shaft arranged in the middle of an air outlet cover, however, no matter the double-valve-plate structure and the single-valve-plate structure are adopted, when the range hood is used, the valve plates are positioned at the opening positions, the valve plates are far away from an air outlet, the opened valve plates can block the smoothness of a public flue gas channel due to the fact that the plane where the valve plates are positioned is consistent with the cross section of the longitudinal public flue gas channel when the valve plates are opened, and especially under the condition that one longitudinal public flue gas channel is shared by multiple residential buildings, the valve plates opened by each residential building can seriously block the smoothness of the public flue gas. Meanwhile, as a plurality of users share one longitudinal public flue gas channel, once a fire happens to one user, a large amount of high-temperature harmful gas flows into the longitudinal public flue gas channel, and if a valve plate in a flue check valve is not closed in time, the large amount of high-temperature harmful gas can enter the user using the range hood through an oil smoke channel of the flue check valve, so that the life safety of the user is threatened.
In order to solve the above technical problems, for example, as "a flue check fire damper" disclosed in chinese patent application with patent number CN200910017260.9 (publication number CN1016108702A), although the flue check fire damper can be forcibly closed in an emergency state where the temperature of flue gas in a common flue is high, the structure of the flue check fire damper is relatively complex, the occupied air outlet area of a channel is large, the local loss of an air outlet is large, and the closing of an air inlet by a valve plate is not reliable enough in the emergency state.
The invention discloses a fire damper of a range hood, which is a Chinese invention patent application with a patent number CN201510205944.7 (application publication number CN104819324A) of the applicant in the prior patent, and comprises a shell, wherein an oil smoke channel is formed in the shell, a radially arranged installation shaft and a rotating valve plate are arranged on the installation shaft in the oil smoke channel, the rotating valve plate can open and close an air inlet, a first torsion spring and a second torsion spring are arranged on the installation shaft, a fusing component is arranged on the second torsion spring, and under the condition that the fusing component is fused, the acting force superposition of the first torsion spring and the second torsion spring is enough to overcome the pressure on the side of the air inlet, so that the air inlet is closed more reliably. This fire prevention valve is through the setting of first torsional spring and second torsional spring for the air intake can be closed reliably to the valve block, and wherein, the setting of rotation valve block is on the installation axle, when opening, need overcome the moment of torsion of first torsional spring and second torsional spring, in order to realize opening of rotation valve block, probably can make opening of valve block difficult.
Therefore, a need exists for further improvement of the fire damper of the existing range hood.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a fire damper for a range hood, which can ensure that an air inlet of a valve body is reliably closed in an emergency and prevent a valve plate from being difficult to open, in view of the current situation of the prior art.
The second technical problem to be solved by the present invention is to provide a fire-proof valve for a range hood, which prevents the first valve plate and the second valve plate from interfering with each other when the fire-proof valve is opened, in view of the current situation of the prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a fire prevention valve for range hood, including the valve body that has the air intake, fusing subassembly and rotate first valve block and the second valve block of setting on the valve body, first valve block and second valve block can rotate and close its characterized in that with air intake vertically plane time mutually supporting: the first valve plate and the second valve plate rotate towards the same rotating direction to open or close the air inlet, a first closing member used for closing the first valve plate and a second closing member used for closing the second valve plate are respectively arranged on the valve body, the first closing member and the second closing member are fixed on the valve body through a common fusing component and are separated from the corresponding valve plate under a normal state, the first closing member and the second closing member are respectively connected with corresponding elastic members, the fusing components are separated from the fusing components under the fusing state, and move towards the same direction under the action of the corresponding elastic members, so that the corresponding valve plates are driven to rotate to enable the air inlet to tend to be closed.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the first valve plate is arranged at a position corresponding to the lower half part of the air inlet, two ends of the first valve plate are rotatably arranged on the valve body corresponding to the left side and the right side of the air inlet, the second valve plate is arranged at a position corresponding to the lower half part of the air inlet, the upper end of the second valve plate is connected to the valve body and rotates relative to the valve body, and the fusing assembly is arranged outside the valve body and above the second valve plate.
Preferably, the maximum angle α of rotation of the first valve plate relative to the valve body is 90 °, and the maximum angle β of rotation of the second valve plate relative to the valve body is 50 °. Like this, under the normal condition for first valve block can be opened completely, and the second valve block carries out the biggest and opens, on the one hand, mutual noninterference when opening to increase smoke exhaust effect, on the other hand, the second valve block is not opened completely, carries out certain separation to the flue gas in the public flue, thereby under the circumstances of guaranteeing good smoke exhaust effect, prevents down the cigarette and scurries the cigarette.
In order to avoid the limiting member, the maximum rotation angle of the second valve plate relative to the valve body is limited by the position of the fusing assembly, namely, the maximum rotation angle beta of the second valve plate relative to the valve body is against the fusing assembly. Like this, the existence of fusing subassembly, on the one hand, under the flue state of being on fire, the convenience is closed the air intake to isolated firework, on the other hand, under normal condition, play the effect of blockking to the second valve piece, thereby the flue gas in the isolated public flue prevents down that the cigarette scurries the cigarette.
In order to prevent the elastic part from being polluted, the elastic part is a first tension spring and a second tension spring which are arranged on the outer side of the valve body side by side, the first closing part and the second closing part are both rod-shaped, two side plates which are arranged oppositely are installed on the outer side of the valve body, a first guide groove corresponding to the first closing part and a second guide groove corresponding to the second closing part are formed in each side plate, two ends of the first closing part can be limited in the first guide grooves of the corresponding side plates in a sliding mode respectively, and two ends of the first tension spring are fixed to the end portions, exposed out of the first guide grooves, of the first closing part respectively; two ends of the second closing member can be limited in the second guide grooves of the corresponding side plates in a sliding mode respectively, and two ends of the second tension spring are fixed to the end portion, exposed out of the second guide grooves, of the second closing member respectively. Therefore, on one hand, the elastic piece is arranged on the outer side of the valve body and is far away from the air inlet, so that the elastic piece is prevented from being polluted, the service life of the elastic piece is prolonged, and the air inlet is reliably closed when the fusing component is in a fusing state; on the other hand, when the fusing assembly is in a fusing state, the first closing member and the second closing member slide in the corresponding guide grooves to close the air inlet, so that the first closing member and the second closing member do not interfere with each other in the sliding process, and the air inlet is closed.
In order to prevent to wear and tear the valve body lateral wall, the whole of first extension spring and second extension spring all is the U type, the middle part of first extension spring and second extension spring is the smooth rigid rod in surface to under the fire prevention valve normal use state, the rigid rod hugs closely on the lateral wall of valve body. Like this, on the one hand, reduced the wearing and tearing of valve body lateral wall, prolonged the life of valve body, on the other hand has reduced the energy loss of first extension spring and second extension spring for realize the air intake more reliably under the effect of first extension spring and second extension spring and close.
Preferably, the fusing component comprises a fusing piece and a bracket fixedly connected with the fusing piece, two ends of the bracket are fixed to the tops of the side plates corresponding to the fusing piece, and two ends of the fusing piece are respectively bent inwards to form a first mounting portion used for fixing the first closing member and a second mounting portion used for fixing the second closing member.
In order to prevent the situation that the elastic part breaks away from the valve body when the fire damper is in a normal use state, the bottom ends of the two side plates are provided with limiting grooves, and the elastic part is partially limited in the limiting grooves when the fire damper is in a normal use state. Therefore, the fusing assembly is in a fusing state, the valve plate can be more reliably pressed on the valve body, and the air inlet tends to be closed.
in order to prevent the backflow of smoke when the fire damper is not used, the valve body is provided with a sealing strip which can form linear surface sealing with the first valve plate and the second valve plate at the joint corresponding to the first valve plate and the second valve plate, and two ends of the sealing strip are respectively fixed on the valve body. Thus, the sealing effect when the first valve sheet and the second valve sheet are closed is increased.
In order to prevent the flue from being blocked, a flue switching outer cover is arranged outside the valve body and comprises an outer cover body and a smoke tube connecting part axially extending from one side of the outer cover body to a smoke tube at the user side, and the outer cover body is attached to and detachably connected onto a bottom plate of the valve body. Like this, on the one hand easy to assemble fire prevention valve, on the other hand has reduced the emergence of flue jam condition.
Compared with the prior art, the invention has the advantages that: 1. according to the structural design of the fireproof valve for the range hood, when the fusing component is not fused, the first closing component and the second closing component are fixed on the valve body through the common fusing component and are separated from the corresponding valve body, and the valve plate is not interfered to be opened, so that the problem that the valve plate is difficult to open is solved, and the smoke exhaust effect is improved; 2. the arrangement of a plurality of fusing assemblies is avoided, the situation that the fusing assemblies are not fused after the flue is ignited is prevented, the safety is improved, and the closing of the air inlet is further influenced; 3. can compress tightly the valve block on the valve body reliably under emergency to the realization is to closing of air intake, thereby prevents that the high temperature flue gas from getting into user's kitchen from the air intake of valve body in, has played the effect of isolated fire, simultaneously, whole fire prevention valve block simple structure.
Drawings
FIG. 1 is a schematic structural view of a fire damper according to an embodiment of the present invention in an open state;
FIG. 2 is a schematic view of the fire damper of an embodiment of the present invention in an open position (with the flue adapter housing removed);
FIG. 3 is a schematic view of the structure of FIG. 2 at another angle;
FIG. 4 is a schematic view of a fire damper according to an embodiment of the present invention in a closed state;
FIG. 5 is a schematic view of a fire damper according to an embodiment of the present invention in a closed position (with the flue adapter housing removed);
FIG. 6 is a schematic view of the structure of FIG. 5 at another angle;
FIG. 7 is a schematic view of the fire damper of the embodiment of the present invention in a forced closed state (with the flue adapter housing removed).
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 7, the fire damper for a range hood according to an embodiment of the present invention includes a valve body 1 having an air inlet 10, a first valve plate 2, a second valve plate 3, a first closing member 41 for closing the first valve plate 2, a second closing member 42 for closing the second valve plate 3, an elastic member 5, a fusing assembly 6, a flue adapter housing 7, and a bottom plate 8, wherein,
The first valve sheet 2 and the second valve sheet 3 are rotatably disposed on the air inlet 10 of the valve body 1, and the first valve sheet 2 and the second valve sheet 3 can cooperate with each other to close the air inlet 10 of the valve body 1 when rotating to a plane perpendicular to the air inlet 10, that is, the first valve sheet 2 and the second valve sheet 3 open or close the air inlet 10 by rotating in the same rotating direction.
The first closing member 41 and the second closing member 42 are respectively connected with a corresponding elastic member 5, the first closing member 41 and the second closing member 42 are fixed on the valve body 1 through a common fusing assembly 6 and are separated from a corresponding valve plate in a normal state, and when the fusing assembly 6 is in a fusing state, the first closing member 41 and the second closing member 42 are separated from the fusing assembly 6 and can move towards the same direction under the action of the corresponding elastic member 5, so that the corresponding valve plate is driven to rotate to enable the air inlet 10 to tend to be closed. Wherein, install the magnet on the valve body 1, the magnet is in the closed condition at first valve block 2 and second valve block 3, holds corresponding valve block.
in this embodiment, the first valve plate 2 is disposed at a position corresponding to the lower half portion of the air inlet 10, and two ends of the first valve plate are rotatably disposed on the valve body 1 corresponding to the left and right sides of the air inlet 10; the second valve plate 3 is arranged at a position corresponding to the upper half part of the air inlet 10, the upper end of the second valve plate is connected to the valve body 1 and rotates relative to the valve body 1, and the fusing component 6 is arranged on the outer side of the valve body 1 and is positioned above the second valve plate 3; specifically, the maximum angle α of rotation of the first valve plate 2 with respect to the valve body 1 is 90 °, and the maximum angle β of rotation of the second valve plate 3 with respect to the valve body 1 is 50 °. Like this, on the one hand, first valve block and second valve block are independently opened, and mutual noninterference when it opens to increase smoke exhaust effect, on the other hand, the second valve block is not opened completely, can carry out certain separation to the flue gas in the public flue, thereby under the circumstances of guaranteeing good smoke exhaust effect, prevent down the cigarette and scurry the cigarette.
in this embodiment, the elastic member 5 is a first extension spring 51 and a second extension spring 52 which are arranged side by side outside the valve body 1, so as to prevent contamination of the extension springs. The first closing member 41 and the second closing member 42 are both rod-shaped, and the first closing member 41 and the second closing member 42 are arranged at intervals along the air inlet direction of the oil smoke gas flow at the air inlet 10. Two side plates 11 which are oppositely arranged are installed on the outer side of the valve body 1, a first guide groove 111 corresponding to the first closing member 41 and a second guide groove 112 corresponding to the first closing member 42 are respectively formed in the side plates 11, the first guide groove 111 and the second guide groove 112 are both inclined from top to bottom gradually towards the smoke tube of the user side, two ends of the first closing member 41 can be respectively limited in the first guide grooves 111 of the corresponding side plates in a sliding manner, and two ends of a first tension spring 51 are respectively fixed on the end parts of the first closing member 41 exposed out of the first guide grooves 111; two ends of the second closing member 42 are slidably limited in the second guide grooves 112 of the corresponding side plates, respectively, and two ends of the second tension spring 52 are fixed on the end portions of the second closing member 42 exposed out of the second guide grooves 112, respectively.
The first closing member can be pulled by two mutually independent tension springs, and the second closing member can be pulled by two mutually independent tension springs, and the arrangement mode is as follows: the free end of one tension spring is connected with the first end of the first closing member, and the fixed end of the tension spring is fixed on a bracket arranged on the valve body 1; the free end of the other tension spring is fixedly connected with the second end of the first closing member, and the fixed end of the tension spring is arranged on the bracket of the valve body 1. It can also adopt one tension spring, in this embodiment, each of the first closing member 41 and the second closing member 42 is provided with one tension spring, which is a first tension spring 51 and a second tension spring 52, specifically, the whole of the first tension spring 51 and the second tension spring 52 is U-shaped, the middle parts of the first tension spring 51 and the second tension spring 52 are rigid rods 500 with smooth surfaces, and in a normal use state of the fire damper, the rigid rods 500 of the first tension spring 51 and the second tension spring 52 are tightly attached to the outer side wall of the valve body 1.
In this embodiment, the bottom ends of the two side plates 11 are provided with a limiting groove 113, and in a normal use state of the fire damper, the first tension spring 51 and the second tension spring 52 are both partially limited in the limiting groove 113. In order to prevent the elastic element from separating from the valve body in one step, a limit convex part 17 for limiting the middle part of the tension spring is arranged on the outer side wall of the valve body 1, and the tension spring is limited between the limit convex part 17 and an end plate 15 of the valve body 1.
In this embodiment, the top of the valve body 1 is provided with the mounting bracket 16, the mounting shaft 161 is mounted on the mounting bracket 16, the first rotating connecting piece 162 is mounted on the mounting shaft 161, the top of the second valve plate 3 is fixed on the first rotating connecting piece 162, in addition, the connecting shaft 121 is mounted on the side plate 11, the second rotating connecting piece 122 is mounted on the connecting shaft 121, and two ends of the first valve plate 2 are fixed on the corresponding second rotating connecting pieces 122.
In this embodiment, the fusing assembly 6 includes a fuse link 61 and a bracket 62 connected to the fuse link 61, two ends of the fuse link 61 are respectively bent downward to form a first mounting portion 611 for fixing the first closing member 41 and a second mounting portion 612 for fixing the second closing member 42, two ends of the bracket 62 are fixed to the valve body 1, in addition, the connecting manner between the fuse link 61 and the bracket 62 is various, in this embodiment, mounting holes for the connecting member to pass through are formed in the fuse link 61 and the bracket 62, and fixed connection is realized through the matching of the connecting member and the mounting holes.
in order to reduce the occurrence of the situation of preventing the backflow of smoke and the smoke when the fire damper does not work, the joint of the first valve plate and the second valve plate is formed with a sealing strip, in this embodiment, the valve body 1 is provided with a sealing strip 13 capable of forming line-surface sealing with the first valve plate 2 and the second valve plate 3 at the joint corresponding to the first valve plate 2 and the second valve plate 3, and two ends of the sealing strip 13 are respectively fixed on the valve body 1.
In this embodiment, bottom plate 8 is pre-buried on user's flue wall, and bottom plate 8 is provided with four screw holes all around. Flue switching dustcoat 7 sets up outside valve body 1, flue switching dustcoat 7 is including dustcoat body 71 and the tobacco pipe connecting portion 72 of extending to user's side tobacco pipe axial from dustcoat body 71 one side, dustcoat body 71 pastes and connects on bottom plate 8 with can dismantling, in this embodiment, dustcoat body 71 is the rectangle transition between bottom plate 8 and the tobacco pipe connecting portion 72 to the area that first valve block and second valve block occupy the flue has been reduced, the resistance to the flue after first valve block and the second valve block are opened has been reduced, and then the emergence of the flue jam condition has effectively been reduced.
Install fixed bullet knot 81 on bottom plate 8, be provided with the spacing lug 711 that is used for catching on fixed bullet knot 71 on the lateral wall of dustcoat body 71, after fixed bullet knot 81 is spacing on spacing lug 711, dustcoat body 71 is fixed on bottom plate 8, makes things convenient for installer's installation and maintenance to the fire prevention valve.
Claims (10)
1. The utility model provides a fire prevention valve for range hood, including valve body (1) that has air intake (10), fusing subassembly (6) and rotate first valve block (2) and second valve block (3) of setting on valve body (1), first valve block (2) and second valve block (3) can mutually support and close air intake (10) of valve body (1) when rotating on the plane perpendicular with air intake (10), its characterized in that: the valve body (1) is respectively provided with a first closing member (41) used for closing the first valve plate (2) and a second closing member (42) used for closing the second valve plate (3), and the first closing member (41) and the second closing member (42) are fixed on the valve body (1) through a common fusing component (6) and are separated from the corresponding valve plates (2 and 3) in a normal state; the first closing member (41) and the second closing member (42) are respectively connected with corresponding elastic members (5), and are separated from the fusing assembly (6) when the fusing assembly (6) is in a fusing state and move towards the same direction under the action of the corresponding elastic members (5), so that the corresponding valve plates (2 and 3) are driven to rotate, and the air inlet (10) tends to be closed.
2. The fire damper for a range hood according to claim 1, wherein: the first valve plate (2) is arranged at the position corresponding to the lower half part of the air inlet (10), and two ends of the first valve plate are rotatably arranged on the valve body (1) corresponding to the left side and the right side of the air inlet (10); second valve block (3) set up in the position that corresponds air intake (10) the latter half, and its upper end is connected on valve body (1) and rotates relative valve body (1), fusing subassembly (6) set up in the outside of valve body (1) and are located the top of second valve block (3).
3. The fire damper for a range hood according to claim 2, wherein: the maximum angle alpha of the first valve plate (2) rotating relative to the valve body (1) is 90 degrees, and the maximum angle beta of the second valve plate (3) rotating relative to the valve body (1) is 50 degrees.
4. The fire damper for a range hood according to claim 3, wherein: the maximum angle of the second valve plate (3) rotating relative to the valve body (1) is limited by the position of the fusing component (6), namely, when the second valve plate (3) rotates to the maximum angle beta relative to the valve body (1), the second valve plate and the fusing component (6) are abutted.
5. The fire damper for a range hood according to any one of claims 1 to 4, wherein: the elastic piece (5) is a first tension spring (51) and a second tension spring (52) which are arranged on the outer side of the valve body (1) side by side, the first closing piece (41) and the second closing piece (42) are both rod-shaped, two side plates (11) which are arranged oppositely are installed on the outer side of the valve body (1), a first guide groove (111) corresponding to the first closing piece (41) and a second guide groove (112) corresponding to the second closing piece (42) are formed in each side plate (11), two ends of the first closing piece (41) can be limited in the first guide grooves (111) of the corresponding side plates in a sliding mode respectively, and two ends of the first tension spring (51) are fixed on the end portions, exposed out of the first closing piece (41), of the first guide grooves (111) respectively; two ends of the second closing member (42) can be limited in the second guide groove (112) of the corresponding side plate in a sliding mode respectively, and two ends of the second tension spring (52) are fixed to the end portion, exposed out of the second guide groove (112), of the second closing member (42) respectively.
6. The fire damper for a range hood according to claim 5, wherein: the whole shape of first extension spring (51) and second extension spring (52) all is the U type, and the middle part of first extension spring (51) and second extension spring (52) is smooth rigid rod (500) in surface to under the fire prevention valve normal use state, rigid rod (500) all hug closely on the lateral wall of valve body (1).
7. The fire damper for a range hood according to claim 6, wherein: fuse assembly (6) including fuse link (61) and with fuse link (61) looks fixed connection's support (62), the both ends of support (62) are fixed at the top that corresponds side curb plate (11), the both ends of fuse link (61) are inwards buckled respectively and are formed with first installation department (611) that are used for fixed first shutter (41) and second installation department (612) that are used for fixed second shutter (42).
8. The fire damper for a range hood according to claim 5, wherein: the bottom ends of the two side plates (11) are provided with limiting grooves (113), and the elastic part (5) is partially limited in the corresponding limiting grooves (113) in the normal use state of the fire damper.
9. the fire damper for a range hood according to claim 1, wherein: the valve body (1) is corresponding to the joint of the first valve plate (2) and the second valve plate (3) is provided with a sealing strip (13) which can form line-surface sealing with the first valve plate (2) and the second valve plate (3), and two ends of the sealing strip (13) are respectively fixed on the valve body (1).
10. the fire damper for a range hood according to claim 1, wherein: the smoke pipe connecting device is characterized in that a smoke pipe connecting cover (7) is arranged outside the valve body (1), the smoke pipe connecting cover (7) comprises a cover body (71) and a smoke pipe connecting part (72) which axially extends from one side of the cover body (71) to a smoke pipe at the user side, and the cover body (71) is attached to and detachably connected to a bottom plate (8) of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810564180.4A CN110553072B (en) | 2018-06-04 | 2018-06-04 | Fireproof valve for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810564180.4A CN110553072B (en) | 2018-06-04 | 2018-06-04 | Fireproof valve for range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110553072A true CN110553072A (en) | 2019-12-10 |
| CN110553072B CN110553072B (en) | 2024-04-02 |
Family
ID=68735913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810564180.4A Active CN110553072B (en) | 2018-06-04 | 2018-06-04 | Fireproof valve for range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110553072B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288521A (en) * | 2020-03-16 | 2020-06-16 | 宁波方太厨具有限公司 | Air outlet cover and range hood with same |
| CN112901830A (en) * | 2021-01-09 | 2021-06-04 | 丁宇 | Fireproof flue check valve |
| CN113048272A (en) * | 2021-03-27 | 2021-06-29 | 浙江尚扬通风设备有限公司 | Smoke-discharging fire-proof valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1200980A (en) * | 1968-09-20 | 1970-08-05 | Frederick William Pantland | Improvements in and relating to fire dampers |
| CN202597795U (en) * | 2012-04-28 | 2012-12-12 | 安徽铜都阀门股份有限公司 | Multi-pedaled buoyant box type check valve |
| CN203784380U (en) * | 2014-01-17 | 2014-08-20 | 邱玉海 | Fire-proof flue check valve |
| CN205064971U (en) * | 2015-10-16 | 2016-03-02 | 宁波方太厨具有限公司 | Flue valve of preventing fires for lampblack absorber |
| CN107489794A (en) * | 2017-09-26 | 2017-12-19 | 姚世杰 | A kind of oil-smoke-exhausting fireproof check valve |
| CN206904307U (en) * | 2017-06-23 | 2018-01-19 | 中信国安盟固利动力科技有限公司 | A kind of check-valves |
| CN207246494U (en) * | 2017-10-18 | 2018-04-17 | 宁波方太厨具有限公司 | A kind of monolithic valve fireproof check valve for flue |
| CN208535256U (en) * | 2018-06-04 | 2019-02-22 | 宁波方太厨具有限公司 | A kind of fire resisting damper for range hood |
-
2018
- 2018-06-04 CN CN201810564180.4A patent/CN110553072B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1200980A (en) * | 1968-09-20 | 1970-08-05 | Frederick William Pantland | Improvements in and relating to fire dampers |
| CN202597795U (en) * | 2012-04-28 | 2012-12-12 | 安徽铜都阀门股份有限公司 | Multi-pedaled buoyant box type check valve |
| CN203784380U (en) * | 2014-01-17 | 2014-08-20 | 邱玉海 | Fire-proof flue check valve |
| CN205064971U (en) * | 2015-10-16 | 2016-03-02 | 宁波方太厨具有限公司 | Flue valve of preventing fires for lampblack absorber |
| CN206904307U (en) * | 2017-06-23 | 2018-01-19 | 中信国安盟固利动力科技有限公司 | A kind of check-valves |
| CN107489794A (en) * | 2017-09-26 | 2017-12-19 | 姚世杰 | A kind of oil-smoke-exhausting fireproof check valve |
| CN207246494U (en) * | 2017-10-18 | 2018-04-17 | 宁波方太厨具有限公司 | A kind of monolithic valve fireproof check valve for flue |
| CN208535256U (en) * | 2018-06-04 | 2019-02-22 | 宁波方太厨具有限公司 | A kind of fire resisting damper for range hood |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288521A (en) * | 2020-03-16 | 2020-06-16 | 宁波方太厨具有限公司 | Air outlet cover and range hood with same |
| CN111288521B (en) * | 2020-03-16 | 2021-10-29 | 宁波方太厨具有限公司 | Air outlet cover and range hood with same |
| CN112901830A (en) * | 2021-01-09 | 2021-06-04 | 丁宇 | Fireproof flue check valve |
| CN113048272A (en) * | 2021-03-27 | 2021-06-29 | 浙江尚扬通风设备有限公司 | Smoke-discharging fire-proof valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110553072B (en) | 2024-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110553072A (en) | Fire-proof valve for range hood | |
| CN212377371U (en) | Check valve for range hood | |
| CN208535256U (en) | A kind of fire resisting damper for range hood | |
| CN109751437B (en) | Flue fireproof check valve with double valve plates | |
| CN109185520B (en) | Combined type flue fireproof check valve | |
| CN109681680B (en) | Fireproof check valve for flue of single-chip valve | |
| CN110792826A (en) | Fire-proof valve for range hood | |
| CN209026273U (en) | A kind of fire resisting damper for range hood | |
| CN213017899U (en) | Fireproof check valve for oil smoke exhaust | |
| CN112303254B (en) | Fireproof check valve | |
| CN210034547U (en) | Double-open type metal flue check valve | |
| CN210770484U (en) | Fusing type fire-proof valve | |
| CN209876073U (en) | Fireproof check valve for oil smoke exhaust | |
| CN211117839U (en) | Fire-proof valve for range hood | |
| CN208331347U (en) | A kind of huge discharge flow-guiding type fire-preventing check valve and fume diversion structure | |
| CN217207936U (en) | Center magnetic seal type flue fireproof check valve | |
| CN210661515U (en) | Fireproof check valve for range hood | |
| CN109990120B (en) | Double-valve-plate flue fireproof check valve | |
| CN111059328B (en) | Fireproof check valve for range hood | |
| CN205806606U (en) | A kind of flue fire resisting damper | |
| CN205639723U (en) | Can observe fire prevention valve of degree of opening and shutting | |
| CN219775780U (en) | Fireproof flue | |
| CN210890244U (en) | Double-door safety fire-proof type oil smoke exhaust check valve | |
| CN213064794U (en) | Oil smoke discharging fireproof check valve | |
| CN210920243U (en) | Check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |