CN109185520B - Combined type flue fireproof check valve - Google Patents
Combined type flue fireproof check valve Download PDFInfo
- Publication number
- CN109185520B CN109185520B CN201811314812.8A CN201811314812A CN109185520B CN 109185520 B CN109185520 B CN 109185520B CN 201811314812 A CN201811314812 A CN 201811314812A CN 109185520 B CN109185520 B CN 109185520B
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- connecting piece
- valve plate
- air inlet
- check valve
- fireproof
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- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 239000000779 smoke Substances 0.000 claims abstract description 57
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000003517 fume Substances 0.000 description 17
- 230000002265 prevention Effects 0.000 description 9
- 239000007789 gas Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention provides a combined type flue fireproof check valve which comprises a check valve body and a temperature control fireproof actuating mechanism, wherein the check valve body comprises a mounting seat, an air inlet interface and a valve plate, a smoke exhaust hole is formed in the middle of the mounting seat, the air inlet interface and the temperature control fireproof actuating mechanism are respectively fixed on two sides of the mounting seat, the valve plate is arranged on the inner peripheral surface of the air inlet interface and rotates to be opened and closed along with the oil smoke impact force in the air inlet interface, and when the temperature in a public flue reaches a preset temperature, the temperature control fireproof actuating mechanism is automatically opened and pressed on the valve plate, so that the valve plate cannot be freely opened, a smoke pipe of a range hood and the public flue can be effectively blocked, and harmful gas or flame in the public flue is prevented from entering a user family.
Description
Technical Field
The invention belongs to the technical field of flue check valves, and particularly relates to a combined flue fireproof check valve.
Background
The check valve is also called one-way valve or check valve, and is used for preventing the fume in fume pipeline from flowing back into kitchen to cause fume, smell, fire, etc.
The flue check valve used in the prior art generally consists of an air inlet interface and a valve plate, wherein the valve plate is rotatably arranged at an air outlet of the air inlet interface by a pin shaft, and when the range hood is not used, the valve plate is in a closed state due to self gravity and covers the air outlet; when the range hood is used, the valve plate is opened and kept away from the air outlet by the impact force of the oil smoke, and the check valve has the following defects in the use process: 1. the installation position is limited, and the air conditioner can only be installed above the air outlet, but cannot be horizontally installed or installed below the air outlet; 2. the safety hidden trouble exists, once a fire disaster occurs in one household, a large amount of high-temperature harmful gas floods into a public flue, if the valve plate of the check valve in the public flue cannot be closed in time at the moment, the large amount of high-temperature harmful gas can enter the household of a user who is using the range hood in the oil smoke flowing direction through the air inlet interface of the flue check valve, so that the life safety of the household is threatened; 3. the oil smoke discharged from the household oil smoke channel cannot be guided.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the combined flue fireproof check valve which is simple in structure and safe to use.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a combination formula flue fire prevention check valve, includes check valve body and control by temperature change fire prevention actuating mechanism, the check valve body includes mount pad, inlet connection and valve block, there is the exhaust port at the mount pad middle part, the inlet connection is located one side of mount pad and this inlet connection's one end connect in on the global of exhaust port, the valve block install on the inner peripheral face of inlet connection and rotate along with the oil smoke impact force size in the inlet connection, control by temperature change fire prevention actuating mechanism installs the opposite side of mount pad;
When the temperature in the public flue is lower than the preset temperature, the temperature control fireproof actuating mechanism is in a locking non-working state, and when the temperature in the public flue reaches the preset temperature, the temperature control fireproof actuating mechanism is automatically opened and pressed on the valve plate.
According to the technical scheme, when the combined flue fireproof check valve is used, when the temperature in the public flue reaches the preset temperature of the temperature control fireproof actuating mechanism, the temperature control fireproof actuating mechanism is automatically opened and pressed on the valve plate, so that the valve plate is free to be opened without being influenced by the impact force of oil smoke in the air inlet interface, a smoke pipe of the range hood and the public flue can be effectively separated, and harmful gas or flame in the public flue is prevented from entering a household.
According to an example of the present invention, the temperature control fire prevention device further comprises a control mechanism for limiting the rotation angle of the valve plate, wherein the control mechanism and the temperature control fire prevention actuating mechanism are located on the same side of the mounting seat; the control mechanism comprises a fixed connecting piece, a movable connecting piece, a pin shaft, a torsion spring and a hinge seat, wherein the upper end of the fixed connecting piece is a free end, the lower end of the fixed connecting piece is fixedly connected with the hinge seat fixed on the mounting seat, one end of the movable connecting piece is hinged with the hinge seat through the pin shaft, the other end of the movable connecting piece is fixed on the valve plate, and the torsion spring is sleeved on the pin shaft;
When the valve plate is sealed at the air inlet interface, the torsion spring is in a reset state, and when the valve plate is opened by the oil smoke impact force in the air inlet interface, the torsion spring is in a torsion state.
According to one example of the invention, the temperature control fireproof actuating mechanism comprises a fusing mechanism, an actuating compression bar, two guide side plates and two locking springs;
The guide side plates are arranged on two opposite inner sides of the mounting seat in parallel to the flow direction of the oil smoke in the flue, each guide side plate is provided with a guide groove along the flow direction of the oil smoke in the flue, the rod body part of the execution pressure rod is positioned between the two guide side plates, and the two ends of the execution pressure rod correspondingly extend out of the two guide grooves; each locking spring is correspondingly arranged on the outer side of the corresponding guide side plate, one end of each locking spring is arranged at the end part of the corresponding execution compression bar, and the other end of each locking spring is arranged at the tail end of the corresponding guide groove; the valve plate is arranged close to the air inlet end of the air inlet interface, and the execution compression bar slides along with the stretching/resetting of the locking spring to separate from/press the movable connecting piece;
When the fusing mechanism is not fused, the locking spring is in a stretching state, the end part of the execution pressing rod is positioned at the end part of the guide groove, which is close to the starting end of the oil smoke flowing direction, when the fusing mechanism is fused, the execution pressing rod loses the control of the fusing mechanism and is driven by the locking spring to reset so as to slide to the end part of the guide groove, which is close to the tail end of the oil smoke flowing direction, and at the moment, the execution pressing rod is pressed on the valve plate through the movable connecting piece.
According to an example of the present invention, the end of the guide groove near the start end of the fume flow direction is inclined to extend upwards to form an extension groove, and when the fusing mechanism is not fused, the end of the actuating pressure lever extends out from the extension groove.
According to an example of the invention, the temperature control fireproof actuating mechanism further comprises a clamping piece fixed on the valve plate, and the upper surface of the clamping piece is provided with a saw-tooth structure.
According to an example of the present invention, the fusing mechanism includes a fuse link and a connecting piece, the fixed connecting piece is provided with a flow hole, the fuse link is located at the flow hole, the upper end of the fuse link is connected with the upper end of the fixed connecting piece, and the lower end of the fuse link is connected with the execution compression bar through the connecting piece.
According to an example of the present invention, a protection cover for protecting the locking spring is provided on the guide side plate.
According to an example of the invention, the air guide sleeve comprises side air shields respectively arranged on the two guide side plates and a top air shield connected with the two side air shields, wherein the upper ends of the fuse link and/or the fixed connecting piece are/is fixed on the top air shield, and the two side air shields, the mounting seat, the valve plate and the top air shield enclose a smoke exhaust channel.
According to one example of the invention, the mounting seat is respectively provided with positioning spring clamps at two opposite sides of the temperature control fireproof actuating mechanism.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of a combined flue fireproof check valve provided in embodiment 1 of the present invention in a normal use state;
FIG. 2 is an exploded view of the modular flue fire check valve shown in FIG. 1;
FIG. 3 is a schematic view of the fuse link of FIG. 1 after fusing and pressing a compression bar onto a valve plate;
fig. 4 is a schematic structural view of the combined flue fireproof check valve provided in embodiment 2 of the present invention in a normal use state;
In the reference numerals:
10. A check valve body; 11. a mounting base; 12. an air inlet interface; 13. a valve plate;
20. A temperature control fireproof executing mechanism; 21. executing a compression bar; 22. a clamping piece; 23. a guide side plate; 231. a guide groove; 232. an extension groove; 24. a locking spring; 25. a fuse link; 26. a connecting sheet; 27. a protective cover;
31. Fixing the connecting piece; 311. a flow hole; 32. a movable connecting piece; 33. a pin shaft; 34. a torsion spring; 35. a hinge base;
40. a guide cover; 41. side wind shields; 42. a top wind deflector;
50. And positioning the spring card.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
Referring to fig. 1 to 3, the present embodiment provides a combined flue fireproof check valve, which includes a check valve body 10 and a temperature control fireproof actuator 20, wherein the check valve body 10 includes a mounting seat 11, an air inlet port 12, a valve plate 13 and other components.
The middle part of the mounting seat 11 is provided with a smoke exhaust hole, the air inlet interface 12 is positioned at one side of the mounting seat 11, one end of the air inlet interface 12 is connected to the peripheral surface of the smoke exhaust hole, the valve plate 13 is arranged on the inner peripheral surface of the air inlet interface 12 and rotates along with the oil smoke impact force in the air inlet interface 12, and the temperature control fireproof executing mechanism 20 is arranged at the other side of the mounting seat 11; when the temperature in the public flue is lower than the preset temperature, the temperature control fireproof actuating mechanism 20 is in a locking non-working state, and when the temperature in the public flue reaches the preset temperature, the temperature control fireproof actuating mechanism 20 is automatically opened and pressed on the valve plate 13.
In the invention, the device also comprises a control mechanism for limiting the rotation angle of the valve plate 13, wherein the control mechanism and the temperature control fireproof executing mechanism 20 are positioned on the same side of the mounting seat 11, when the oil smoke impact force in the air inlet interface 12 is smaller than the acting force of the control mechanism or the temperature control fireproof executing mechanism 20 is pressed on the valve plate 13, the valve plate 13 is in a closed state, and when the oil smoke impact force in the air inlet interface 12 is larger than the acting force of the control mechanism and the temperature control fireproof executing mechanism 20 is in a locking non-working state, the valve plate 13 is opened by the oil smoke impact force in the air inlet interface 12 at different angles.
Specifically, as shown in fig. 1 and fig. 2, the control mechanism includes a fixed connecting member 31, a movable connecting member 32, a pin shaft 33, a torsion spring 34 and a hinge seat 35, wherein the upper end of the fixed connecting member 31 is a free end, the lower end of the fixed connecting member 31 is fixedly connected with the hinge seat 35 fixed on the mounting seat 11, one end of the movable connecting member 32 is hinged with the hinge seat 35 through the pin shaft 33, the other end of the movable connecting member 32 is fixed on the valve plate 13, and the torsion spring 34 is sleeved on the pin shaft 33; when the valve plate 13 is sealed at the air inlet interface 12, the torsion spring 34 is in a reset state, and when the valve plate 13 is opened by the impact force of oil smoke in the air inlet interface 12, the torsion spring 34 is in a torsion state.
In the above-mentioned control mechanism, the structures of the fixed connector 31, the movable connector 32 and the hinge seat 35 are various, and are not limited to one by one.
In the present invention, the temperature control fire prevention executing mechanism 20 has various structures, and the embodiment provides a temperature control fire prevention executing mechanism 20 with lower cost and simpler structure.
Specifically, as shown in fig. 1 and2, the temperature-controlled fire prevention actuator 20 includes a fusing mechanism, an actuating pressure lever 21, two guiding side plates 23, and two locking springs 24;
The guiding side plates 23 are arranged on two opposite inner sides of the mounting seat 11 in parallel to the flow direction of the oil smoke in the flue, each guiding side plate 23 is provided with a guiding groove 231 along the flow direction of the oil smoke in the flue, the rod body part of the execution pressing rod 21 is positioned between the two guiding side plates 23, two ends of the execution pressing rod 21 correspondingly extend out of the two guiding grooves 231, each locking spring 24 is correspondingly arranged on the outer side of the guiding side plate 23, one end of each locking spring 24 is arranged at the end part of the execution pressing rod 21, and the other end of each locking spring is arranged at the tail end of the guiding groove 231; the valve plate 13 is arranged near the air inlet end of the air inlet interface 12, and the execution compression bar 21 slides along with the stretching/resetting of the locking spring 24 to separate from/press the movable connecting piece 32;
When the fusing mechanism is not fused, the locking spring 24 is in a stretched state, the actuating compression bar 21 is located at the end of the guide slot 231, which is close to the beginning end of the oil smoke flowing direction, when the fusing mechanism is fused, the actuating compression bar 21 loses the control of the fusing mechanism and is reset by the locking spring 24 to drive the actuating compression bar 21 to slide to the end of the guide slot 231, which is close to the end of the oil smoke flowing direction, and at the moment, the actuating compression bar 21 is pressed on the valve plate 13 through the movable connecting piece 32.
In order to reduce the length of the air inlet 12 and prevent the actuating pressure lever 21 from affecting the normal opening of the valve plate 13, the end of the guide slot 231 near the beginning of the fume flow direction may be extended obliquely upwards to form an extension slot 232, and when the fusing mechanism is not fused, the end of the actuating pressure lever 21 extends out from the extension slot 232.
In addition, in order to ensure the stability of the execution pressure lever 21 pressed on the valve plate 13 and prevent the fume in the fume exhaust duct of the household fume exhaust duct from rushing out of the valve plate 13, the upper edge of the guide slot 231 and/or the upper edge of the movable connecting piece 32 can be processed into a saw-tooth structure, so that the impact force required by the fume in the fume exhaust duct of the household fume exhaust duct to rushing out of the valve plate 13 can be further increased, and the fume exhaust duct of the fume exhaust duct and the public fume exhaust duct can be effectively isolated.
In order to further improve the stability of the execution pressure lever 21 pressed on the valve plate 13, at least one clamping piece 22 can be arranged on the valve plate 13, the upper surface of the clamping piece 22 is provided with a saw-tooth structure, at the moment, the saw-tooth structure of the clamping piece 22, the guide groove 231 and the movable connecting piece 32 are matched to stabilize the position of the execution pressure lever 21, so that the excessive oil smoke impact force in the air inlet interface 12 is prevented from stretching the locking spring 24, the execution pressure lever 21 is caused to move, and the temperature control fireproof executing mechanism 20 is further disabled.
In this embodiment, the mounting base 11 is provided with positioning spring clips 50 on two opposite sides of the temperature control fire prevention executing mechanism 20, so that the check valve can be quickly and conveniently mounted at the outlet of the flue of the household range hood. In order to further improve the stability of the check valve installation, screw holes for reinforcement may be formed at four corners of the mounting seat 11, respectively.
In order to reduce the usage amount of the fuse link 25 and reduce the overall cost of the check valve, the fusing mechanism comprises the fuse link 25 and a connecting sheet 26, a flow hole 311 is formed in the fixed connecting piece 31, the fuse link 25 is located at the flow hole 311, the upper end of the fuse link 25 is connected with the upper end of the fixed connecting piece 31, the lower end of the fuse link 25 is connected with the execution compression bar 21 through the connecting sheet 26, and the flow hole 311 is formed to enable the temperature of the oil smoke in the public flue and the temperature of the fuse link 25 to be synchronous rapidly.
As shown in fig. 2, in this embodiment, the guide side plate 23 is provided with a protecting cover 27 for protecting the locking spring 24, the shape of the protecting cover 27 is not limited, and the protecting cover 27 can reduce the corrosion and filling of the oil smoke to the locking spring 24 as much as possible, so as to avoid the failure of the locking spring 24.
The working principle of the combined flue fireproof check valve provided by the invention is as follows:
Working state 1: when the temperature of the oil smoke in the public flue is lower than the fusing temperature of the fuse link 25, the execution compression bar 21 is tensioned by the fuse link 25 and the connecting sheet 26 and fixed on the fixed connecting piece 31, the locking spring 24 is in a stretching state, the valve sheet 13 is controlled to be opened and closed by the impact force of the oil smoke in the air inlet interface 12, when the range hood in a user family is not opened, the impact force of the oil smoke in the air inlet interface 12 is zero, the valve sheet 13 is automatically closed on the air inlet interface 12 under the action of the torsion spring 34, and when the range hood in the user family is opened, the impact force of the oil smoke in the air inlet interface 12 overcomes the acting force of the torsion spring 34, and then the valve sheet 13 is opened.
Working state 2: when the temperature of the oil smoke in the public flue is equal to or greater than the fusing temperature of the fuse link 25, the fuse link 25 fuses, after the compression bar 21 loses the tension of the fusing mechanism, the compression bar 21 slides to the tail end of the guide groove 221 rapidly and is pressed on the valve plate 13 under the action of the restoring force of the locking spring 24, so that the smoke tube of the range hood and the public flue are effectively blocked, and the fire of the household smoke tube of a user is prevented.
In this embodiment, it should be explained that the direction of the oil smoke flowing is the direction from the user's household smoke outlet in the public flue to the atmosphere or the purifier, and the fusing temperature of the fuse link 25 is the temperature specified by the national relevant specification, that is, the fuse link 25 fuses at the temperature of 156++2°.
Example 2:
As shown in fig. 4, this embodiment provides a combined variable diversion type flue fireproof check valve based on embodiment 1, the improvement is that: the air guide sleeve 40 is arranged above the temperature control fireproof actuating mechanism 20, the air guide sleeve 40 comprises side air shields 41 respectively arranged on the two guide side plates 23 and top air shields 42 connected with the two side air shields 41, and the upper ends of the fuse link 25 and/or the fixed connecting piece 31 are/is fixed on the top air shields 42, and the two side air shields 41, the mounting seat 11, the valve plate 13 and the top air shields 42 enclose a smoke exhaust channel.
When the range hood in the user's home does not work, the fume in the public flue can discharge fume through the fume discharge channels inside and outside the air guide sleeve 40; when the range hood in the user's home works, the acting force of the oil smoke in the air inlet interface 12 can impact and open the valve plate 13, at this time, the smoke exhaust channel in the air guide cover 40 mainly discharges the oil smoke in the user's home, and the smoke exhaust channel outside the air guide cover 40 mainly discharges the oil smoke in the public flue, so that the oil smoke in the user's home can be discharged rapidly. In order to improve the flow guiding effect of the air guide sleeve 40, the included angle between the top air baffle 42 and the flow direction of the oil smoke in the flue can be set to be 30-60 degrees.
The variable diversion type flue fireproof check valve provided by the embodiment has the dual functions of fireproof and airflow guiding, and is simple in structure, high in stability, low in manufacturing cost and high in safety coefficient.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (7)
1. A combination type flue fireproof check valve is characterized in that:
The device comprises a check valve body (10) and a temperature control fireproof executing mechanism (20), wherein the check valve body (10) comprises a mounting seat (11), an air inlet interface (12) and a valve plate (13), a smoke exhaust hole is formed in the middle of the mounting seat (11), the air inlet interface (12) is positioned on one side of the mounting seat (11), one end of the air inlet interface (12) is connected to the peripheral surface of the smoke exhaust hole, the valve plate (13) is mounted on the inner peripheral surface of the air inlet interface (12) and rotates along with the oil smoke impact force in the air inlet interface (12), and the temperature control fireproof executing mechanism (20) is mounted on the other side of the mounting seat (11); the temperature control fireproof actuating mechanism (20) comprises a fusing mechanism, an actuating compression bar (21), two guide side plates (23) and two locking springs (24), wherein the fusing mechanism comprises a fusing piece (25) and a connecting piece (26);
The device also comprises a control mechanism for limiting the rotation angle of the valve plate (13), wherein the control mechanism and the temperature control fireproof executing mechanism (20) are positioned on the same side of the mounting seat (11), and the control mechanism comprises a fixed connecting piece (31), a movable connecting piece (32), a pin shaft (33), a torsion spring (34) and a hinging seat (35);
The guide side plates (23) are arranged on two opposite inner sides of the mounting seat (11) in parallel to the flow direction of the oil smoke in the flue, each guide side plate (23) is provided with a guide groove (231) along the flow direction of the oil smoke in the flue, the rod body part of the execution pressure rod (21) is positioned between the two guide side plates (23), and two ends of the execution pressure rod (21) correspondingly extend out of the two guide grooves (231); each locking spring (24) is correspondingly arranged on the outer side of the corresponding guide side plate (23), one end of each locking spring (24) is mounted at the end part of the corresponding execution pressing rod (21), and the other end of each locking spring is mounted at the tail end of the corresponding guide groove (231); the valve plate (13) is arranged close to the air inlet end of the air inlet interface (12), and the execution pressing rod (21) slides to be separated from/pressed against the movable connecting piece (32) along with the stretching/resetting of the locking spring (24);
The upper end of the fixed connecting piece (31) is a free end, the lower end of the fixed connecting piece (31) is fixedly connected with a hinge seat (35) fixed on the mounting seat (11), one end of the movable connecting piece (32) is hinged with the hinge seat (35) through a pin shaft (33), the other end of the movable connecting piece (32) is fixed on the valve plate (13), and the torsion spring (34) is sleeved on the pin shaft (33);
When the valve plate (13) is sealed at the air inlet interface (12), the torsion spring (34) is in a reset state, and when the valve plate (13) is opened by the impact force of oil smoke in the air inlet interface (12), the torsion spring (34) is in a torsion state;
The fixed connecting piece (31) is provided with a flow hole (311), the fuse link (25) is positioned at the flow hole (311), the upper end of the fuse link (25) is connected with the upper end of the fixed connecting piece (31), and the lower end of the fuse link is connected with the execution compression bar (21) through the connecting piece (26);
When the fusing mechanism is not fused, the locking spring (24) is in a stretched state, the end part of the execution pressing rod (21) is positioned at the end part of the guide groove (231) close to the starting end of the oil smoke flowing direction, and when the fusing mechanism is fused, the execution pressing rod (21) loses control of the fusing mechanism and is driven by the locking spring (24) to reset so as to drive the execution pressing rod (21) to slide to the end part of the guide groove (231) close to the tail end of the oil smoke flowing direction, and the valve plate (13) is pressed by the movable connecting piece (32);
When the temperature in the public flue is lower than the preset temperature, the temperature control fireproof actuating mechanism (20) is in a locking non-working state, and when the temperature in the public flue reaches the preset temperature, the temperature control fireproof actuating mechanism (20) is automatically opened and pressed on the valve plate (13).
2. A modular flue fire check valve according to claim 1, wherein:
the end part of the guide groove (231) close to the starting end of the oil smoke flowing direction is obliquely upwards extended to form an extension groove (232), and when the fusing mechanism is not fused, the end part of the execution pressing rod (21) extends out of the extension groove (232).
3. A modular flue fire check valve according to claim 2, wherein:
The upper edge of the guide groove (231) and/or the upper edge of the movable connecting piece (32) are provided with saw-tooth structures.
4. A modular flue fire check valve according to claim 3, wherein:
the temperature control fireproof executing mechanism (20) further comprises a clamping piece (22) fixed on the valve plate (13), and the upper surface of the clamping piece (22) is provided with a saw-tooth structure.
5. A modular flue fire check valve according to claim 4, wherein:
The guide side plate (23) is provided with a protective cover (27) for protecting the locking spring (24).
6. A modular flue fire check valve according to claim 1, wherein:
The novel air guide sleeve structure is characterized by further comprising a guide cover (40) positioned above the temperature control fireproof actuating mechanism (20), wherein the guide cover (40) comprises side air shields (41) arranged on the guide side plates (23) and top air shields (42) connected with the two side air shields (41), the fuse link (25) and/or the upper end of the fixed connecting piece (31) is/are fixed on the top air shields (42), and the two side air shields (41) and the mounting seat (11) are/is/are surrounded to form a smoke exhaust channel.
7. The modular flue fire check valve of claim 6, wherein:
the mounting seat (11) is provided with positioning spring clamps (50) respectively at two opposite sides of the temperature control fireproof executing mechanism (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811314812.8A CN109185520B (en) | 2018-11-06 | 2018-11-06 | Combined type flue fireproof check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811314812.8A CN109185520B (en) | 2018-11-06 | 2018-11-06 | Combined type flue fireproof check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109185520A CN109185520A (en) | 2019-01-11 |
| CN109185520B true CN109185520B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811314812.8A Active CN109185520B (en) | 2018-11-06 | 2018-11-06 | Combined type flue fireproof check valve |
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| Country | Link |
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| CN (1) | CN109185520B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067883B (en) * | 2019-05-23 | 2024-06-14 | 陈开兵 | Fire-proof check valve for discharging fume |
| CN110360353A (en) * | 2019-08-12 | 2019-10-22 | 纪呈孟 | A kind of fireproof check valve of draught flue |
| CN112901830B (en) * | 2021-01-09 | 2023-02-03 | 丁宇 | Fireproof flue check valve |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB530059A (en) * | 1938-06-15 | 1940-12-04 | Recomatic S A | Improvements in means for controlling the draught in the flues of combustion apparatus |
| GB683922A (en) * | 1949-09-05 | 1952-12-10 | Alfred Joseph Langham | A new or improved apparatus for controlling the draught produced by the chimneys or flues of furnaces, boilers, stoves or kilns |
| EP1029558A1 (en) * | 1999-02-17 | 2000-08-23 | Wilhelm Paul Strulik | Fire protection valve |
| CN203023573U (en) * | 2012-12-20 | 2013-06-26 | 周建东 | Fireproof flue check valve |
| CN106523744A (en) * | 2016-12-29 | 2017-03-22 | 天津市金中基暖通净化设备有限公司 | Flue non-return valve |
| 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 |
| CN207268320U (en) * | 2017-09-26 | 2018-04-24 | 姚世杰 | A kind of oil-smoke-exhausting fireproof check valve |
| CN207584092U (en) * | 2017-11-07 | 2018-07-06 | 宁波方太厨具有限公司 | A kind of fireproof check valve for flue with double valve sheet |
| CN207635414U (en) * | 2017-08-26 | 2018-07-20 | 丁华军 | A kind of new structural oil-smoke-exhausting fireproof check valve |
| CN209084097U (en) * | 2018-11-06 | 2019-07-09 | 陈开兵 | A kind of fireproof check valve for combined flue |
-
2018
- 2018-11-06 CN CN201811314812.8A patent/CN109185520B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB530059A (en) * | 1938-06-15 | 1940-12-04 | Recomatic S A | Improvements in means for controlling the draught in the flues of combustion apparatus |
| GB683922A (en) * | 1949-09-05 | 1952-12-10 | Alfred Joseph Langham | A new or improved apparatus for controlling the draught produced by the chimneys or flues of furnaces, boilers, stoves or kilns |
| EP1029558A1 (en) * | 1999-02-17 | 2000-08-23 | Wilhelm Paul Strulik | Fire protection valve |
| CN203023573U (en) * | 2012-12-20 | 2013-06-26 | 周建东 | Fireproof flue check valve |
| CN106523744A (en) * | 2016-12-29 | 2017-03-22 | 天津市金中基暖通净化设备有限公司 | Flue non-return valve |
| CN207635414U (en) * | 2017-08-26 | 2018-07-20 | 丁华军 | A kind of new structural oil-smoke-exhausting fireproof check valve |
| CN107489794A (en) * | 2017-09-26 | 2017-12-19 | 姚世杰 | A kind of oil-smoke-exhausting fireproof check valve |
| CN207268320U (en) * | 2017-09-26 | 2018-04-24 | 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 |
| CN207584092U (en) * | 2017-11-07 | 2018-07-06 | 宁波方太厨具有限公司 | A kind of fireproof check valve for flue with double valve sheet |
| CN209084097U (en) * | 2018-11-06 | 2019-07-09 | 陈开兵 | A kind of fireproof check valve for combined flue |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109185520A (en) | 2019-01-11 |
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