CN217207936U - Center magnetic seal type flue fireproof check valve - Google Patents

Abstract

The utility model relates to a central magnetism seals formula flue fire prevention check valve relates to the field of check valve, and it includes base and honeycomb duct, flue gas calandria before one side of base is equipped with, the one side pin joint that flue gas calandria before the base was kept away from has the lid of discharging fume that supplies the flue gas to push out the realization to discharge fume, it covers the lid and closes preceding flue gas calandria to discharge fume, the base is kept away from one side of preceding flue gas calandria and still is equipped with back flue gas calandria, it locates in the back flue gas calandria to discharge fume the lid, the honeycomb duct cover is located on the back flue gas calandria, be equipped with the water conservancy diversion passageway on the honeycomb duct, be equipped with if install the honeycomb duct in the back flue gas calandria can the subassembly dismantled. The diameter of the passageway that has improved the flue check valve and be linked together with the pipeline indoor is specific, can not be with the problem that different pipeline phase-matchs used, and this application has and makes the check valve can be applicable to the pipeline of different diameters, has improved the application scope's of check valve effect.

Description

Center magnetic seal type flue fireproof check valve

Technical Field

The application relates to the field of check valves, in particular to a central magnetic seal type flue fireproof check valve.

Background

At present, in many high-rise apartments, families of many households share one flue, exhaust pipes of range hoods are connected to the flue, and when a fire occurs in the flue, the fire easily enters into the room along with the range hood pipeline through the flue, so that a fire disaster is caused.

The flue check valve is also called a reverse flow valve, a check valve, a back pressure valve and a one-way valve, and has the function of effectively stopping waste gas and oil smoke in the external environment from flowing backward into the home of a user, so that the indoor air quality and safety of the user are protected.

In view of the above-mentioned related art, the inventor believes that the diameter of the passage of the flue check valve in the chamber communicating with the duct is specific, and cannot be used with different ducts, and there is room for improvement.

SUMMERY OF THE UTILITY MODEL

In order to improve the flue check valve and be specific at the indoor diameter of the passageway that is linked together with the pipeline, can not use with different pipeline phase-matchs, this application provides a central magnetism seal formula flue fire prevention check valve.

The application provides a central magnetism seals formula flue fire prevention check valve adopts following technical scheme:

the utility model provides a central magnetism seals formula flue fire prevention check valve, includes base and honeycomb duct, flue gas calandria before one side of base is equipped with, the base is kept away from one side pin joint of preceding flue gas calandria has the lid of discharging fume that supplies the flue gas to push out the realization and discharge fume, the flue gas calandria before the lid of discharging fume closes, one side that flue gas calandria was still overlapped and is equipped with back flue gas calandria before the base was kept away from, it locates in the back flue gas calandria to discharge fume the lid, the honeycomb duct cover is located on the back flue gas calandria, be equipped with the water conservancy diversion passageway on the honeycomb duct, be equipped with if do and install the honeycomb duct in the back flue gas calandria can dismantle the subassembly.

Through adopting above-mentioned technical scheme, will install on back flue gas calandria with the honeycomb duct of different pipeline adaptations through dismantling the subassembly for the check valve can be applicable to the pipeline of different diameters, has improved the application scope of check valve.

Optionally, the removable assembly includes the locking piece, the locking piece includes dwang, connecting rod and locking lever, the quantity of dwang is two, two the dwang pin joint is on the outer lateral wall of honeycomb duct, the quantity of connecting rod is two, two the one end one-to-one fixed connection of connecting rod is in two the opposite side of dwang, the both ends one-to-one fixed connection of locking lever is in two the one end of dwang is kept away from to the connecting rod, the one side of back flue gas calandria is kept away from to the locking lever butt in the base.

Through adopting above-mentioned technical scheme, through setting up the locking piece, the locking lever butt in the locking piece makes the honeycomb duct be difficult for breaking away from the back flue gas calandria in one side that the back flue gas calandria was kept away from to the base, simple structure, it is comparatively convenient to dismantle and install, has improved the installation of honeycomb duct and has dismantled efficiency.

Optionally, the detachable component further comprises a protrusion, the locking rod comprises a locking portion and two connecting portions, two ends of the connecting portions are fixedly connected to the two connecting portions in a one-to-one correspondence mode, two ends of the locking portion are fixedly connected to the two ends of the connecting portions in a one-to-one correspondence mode, the protrusion is fixedly connected to one side, away from the base, of the rear flue gas exhaust pipe, and the locking portion abuts against one side, away from the outer side wall of the base, of the protrusion.

Through adopting above-mentioned technical scheme, bellied setting for the locking lever is difficult to break away from on the base from the butt through rotating, improves the locking stability of removable subassembly.

Optionally, fixedly connected with pivot is taken over on the lateral wall of honeycomb duct, the quantity that the pivot was taken over is two and relative setting, two the dwang one-to-one wears to locate two in the pivot is intraductal.

Through adopting above-mentioned technical scheme, the locking piece rusts easily and ages after long-term the use, loses the locking effect easily, and the setting of pin joint pipe for the locking piece can be followed and dismantled from the honeycomb duct and get off, has improved the change efficiency of locking piece.

Optionally, the locking member is an elastic member for driving the rotating rod to approach and insert into the pivot pipe.

Through adopting above-mentioned technical scheme, the locking piece has elasticity for difficult follow pin joint intraductal break away from after the dwang inserts the pin joint pipe, improved the stability of locking piece installation.

Optionally, still include the sealing washer, the sealing washer is located between honeycomb duct and the back flue gas calandria, the inside wall butt of sealing washer and laminate on the outer circumferential side wall of back flue gas calandria, the outside wall butt of sealing washer and laminate on the inner circumferential side wall of honeycomb duct.

Through adopting above-mentioned technical scheme, the setting of sealing washer for sealed between honeycomb duct and the back flue gas calandria, the flue gas is difficult for spilling over from the gap between honeycomb duct and the back flue gas calandria, has improved the leakproofness of check valve.

Optionally, fixedly connected with collar on the inside wall of sealing washer, be equipped with the go-between collar and the sealing washer, the outer periphery lateral wall fixed connection of go-between is on the sealing washer, the inner periphery lateral wall fixed connection of go-between is on the collar, the one end butt that the base was kept away from to back flue gas calandria is on the go-between, the collar butt is on the inside wall of back flue gas calandria.

Through adopting above-mentioned technical scheme, the setting of retainer ring and go-between for the sealing washer can be installed on back flue gas calandria, makes the sealing washer be difficult for establishing and slides along with the cover of honeycomb duct, has improved the installation stability of sealing washer.

Optionally, the smoke exhaust cover is fixedly connected with a rotating column, the rotating column is rotatably connected to the base, a torsion spring is sleeved on the rotating column, the force applying arm of the torsion spring is abutted to the smoke exhaust cover, and the force applying arm of the torsion spring is abutted to the base.

Through adopting above-mentioned technical scheme, the setting of torsional spring for the lid of discharging fume can close preceding flue gas calandria rapidly after opening, and not lid closes under self gravity, reduces because of rustting or the possibility that other reasons can't the lid closes, has increased the lid ability of closing of lid of discharging fume, has improved the lid of discharging fume and has closed efficiency.

Optionally, a fusing component which is heated to trigger and then locks the smoke exhaust cover is further fixedly connected to the base.

Through adopting above-mentioned technical scheme, high temperature is set out fusing subassembly and is acted on to lid locking of will discharging fume makes the lid of discharging fume unable open, has reduced dense cigarette and has got into indoor possibility, has improved the security of check valve.

In summary, the present application includes at least one of the following beneficial technical effects:

the honeycomb ducts matched with different pipelines are arranged on the rear flue gas exhaust pipe, so that the check valve can be suitable for pipelines with different diameters, and the application range of the check valve is widened;

by arranging the locking piece, the structure is simple, the disassembly and the assembly are convenient, and the assembly and disassembly efficiency of the flow guide pipe is improved;

the setting of sealing washer for sealed between honeycomb duct and the back flue gas calandria, the difficult gap that spills over between honeycomb duct and the back flue gas calandria of following of flue gas has improved the leakproofness of check valve.

Drawings

Fig. 1 is a schematic structural diagram of a central magnetic seal type flue fireproof check valve in an embodiment of the present application.

Fig. 2 is an exploded view of a central magnetic seal type flue fireproof check valve in the embodiment of the present application.

Fig. 3 is a schematic structural diagram of a seal ring in an embodiment of the present application.

FIG. 4 is a schematic diagram of the structure of the base, the smoke evacuation cover, and the fuse assembly in an embodiment of the present application.

FIG. 5 is an exploded view of the base, smoke evacuation cover, and fuse assembly in an embodiment of the present application.

FIG. 6 is a rear view of the base, smoke evacuation cover, and fuse assembly in an embodiment of the present application.

Description of reference numerals: 1. a base; 11. a front flue gas exhaust pipe; 111. a magnetic attraction pole; 12. a smoke exhaust cover; 121. rotating the column; 122. a notch; 123. a torsion spring; 124. a placement groove; 125. a magnetic block; 13. a rear flue gas exhaust pipe; 14. a seal ring; 141. a connecting ring; 142. installing a ring; 15. a mounting seat; 16. a fixing sheet; 2. a flow guide pipe; 21. a flow guide channel; 22. a pipe is pivoted; 3. a detachable component; 31. a locking member; 311. rotating the rod; 312. a connecting rod; 313. a locking lever; 3131. a locking portion; 3132. a connecting portion; 32. a protrusion; 4. a fuse assembly; 41. a sliding seat; 42. a slide bar; 43. a tension spring; 44. mounting a plate; 45. a fuse link; 46. fusing the hook; 47. a compression spring; 48. a connecting plate; 49. and a limiting plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses central magnetism seals formula flue fire prevention check valve. Referring to fig. 1 and 2, the central magnetic seal type flue fire prevention check valve includes a base 1, a draft tube 2, a detachable assembly 3, and a fusing assembly 4.

One side of the base 1 is provided with a front flue gas duct 11 which communicates with the indoor duct to discharge flue gas. One side of the base 1 far away from the front flue gas exhaust pipe 11 is pivoted with a smoke exhaust cover 12, the smoke exhaust cover 12 covers one side of the front flue gas exhaust pipe 11, smoke is ejected out to realize smoke exhaust, and external flue gas is not easy to drive into. One side of the base 1 far away from the front flue gas exhaust pipe 11 is sleeved with a rear flue gas exhaust pipe 13, and the exhaust hood 12 is installed in the rear flue gas exhaust pipe 13. The honeycomb duct 2 is installed on the rear flue gas discharge pipe 13 to guide the flue gas. Different guide pipes 2 are provided with guide channels 21 with different diameters, and the guide channels are suitable for different outdoor pipelines. The detachable component 3 is mounted on the flow guide pipe 2, so that the flow guide pipe 2 is conveniently mounted on or dismounted from the base 1. The fuse assembly 4 is mounted on the base 1 so that the fume hood 12 is not easily opened when the temperature is too high.

Referring to fig. 1, the mounting structure of the detachable assembly 3 is as follows: the number of the detachable components 3 is several, here, the number of the detachable components 3 is four, for example, and the four detachable components 3 are symmetrically arranged on two sides of the flow guide pipe 2. Each detachable module 3 comprises a locking member 31 and a projection 32. The lock 31 includes a rotating lever 311, a connecting lever 312, and a locking lever 313. The quantity of dwang 311 is two, and fixedly connected with pivot pipe 22 on the outer circumferential side wall of honeycomb duct 2, pivot pipe 22 can be for welding a pipe on the outer circumferential side wall of honeycomb duct 2, also can be for the half arc pipe that comes out of processing after drawing through the cutting with the lateral wall of honeycomb duct 2, and the half arc pipe that comes out of processing after the cutting is drawn is used as the example here, has practiced thrift material cost. The number of the pivot joint pipes 22 is two and is located on the same axis, the two rotating rods 311 are symmetrically arranged, and the two rotating rods 311 are correspondingly arranged in the pivot joint pipe 22 in a penetrating manner one by one, so that the rotating rods 311 are rotatably connected in the pivot joint pipe 22 and can be detached from the pivot joint pipe 22 for replacement. The number of the connecting rods 312 is the same as that of the rotating rods 311, and one ends of the two connecting rods 312 are fixedly connected to the two rotating rods 311 in a one-to-one correspondence manner, so that the connecting rods 312 rotate along with the rotation of the rotating rods 311. The two connecting rods 312 may be located on opposite sides of the two rotating rods 311, or located on opposite sides of the two rotating rods 311, where the connecting rods 312 are located on opposite sides of the two rotating rods 311 as an example. The locking lever 313 includes a locking portion 3131 and two connecting portions 3132, each of the connecting portions 3132 and the locking portion 3131 is rod-shaped, the two connecting portions 3132 are fixedly connected to one side of the two connecting rods 312 away from the rotating lever 311 in a one-to-one correspondence manner, two ends of the locking portion 3131 are fixedly connected to one side of the connecting portion 3132 away from the connecting rod 312 in a one-to-one correspondence manner, and the locking portion 3131 abuts against one side of the base 1 away from the rear exhaust duct 13, so that the duct 2 is not easily separated from the rear exhaust duct 13. The protrusion 32 is fixedly connected to a side of the base 1 away from the rear flue gas discharging pipe 13, the protrusion 32 is disposed in a hemispherical shape, and the locking portion 3131 abuts against a side of the protrusion 32 away from the outer side wall of the base 1 after abutting against the base 1, so that the locking lever 313 is not easy to rotate. In order to make the rotating rod 311 penetrate through the pivot pipe 22 and not easily disengage, the locking member 31 is an elastic member having certain elasticity, and here, when the locking member 31 is in an initial state, the distance between the ends of the two connecting rods 312 close to the rotating rod 311 is greater than the distance between the two connecting rods 312 after the two rotating rods 311 are inserted into the pivot pipe 22, so that the rotating rods 311 are driven by the elasticity of the connecting rods 312 after the rotating rods 311 are inserted into the pivot pipe 22 to be away from each other and not easily disengage from the pivot pipe 22.

Referring to fig. 2 and 3, in order to seal the space between the rear flue gas discharge pipe 13 and the draft tube 2, a sealing ring 14 is further installed on the rear flue gas discharge pipe 13, the sealing ring 14 is located between the draft tube 2 and the rear flue gas discharge pipe 13, the inner side wall of the sealing ring 14 abuts against and is attached to the outer circumferential side wall of the rear flue gas discharge pipe 13, the outer side wall of the sealing ring 14 abuts against and is attached to the inner circumferential side wall of the draft tube 2, and the space between the draft tube 2 and the rear flue gas discharge pipe 13 is sealed. The inner circumferential side wall of the sealing ring 14 is fixedly connected with a connecting ring 141, and the connecting ring 141 is abutted against one end of the rear flue gas discharge pipe 13 far away from the base 1, so that the sealing ring 14 is not easy to move to one side close to the base 1. The inner side wall of the connection ring 141 away from the sealing ring 14 is fixedly connected with a mounting ring 142, the mounting ring 142 abuts against the inner side wall of the rear flue gas discharge pipe 13, and the rear flue gas discharge pipe 13 is clamped by matching with the sealing ring 14, so that the sealing ring 14 is not easy to be separated from the rear flue gas discharge pipe 13.

Referring to fig. 4, a mounting seat 15 is fixedly connected to the base 1, a rotating column 121 is fixedly connected to one side of the smoke evacuation cover 12, and the rotating column 121 is rotatably connected to the mounting seat 15, so that the smoke evacuation cover 12 is rotatably connected to the base 1. The rotating column 121 is sleeved with a torsion spring 123, and one side of the smoke evacuation cover 12 close to the rotating column 121 is provided with a notch 122, so that the torsion spring 123 and the smoke evacuation cover 12 are not easy to interfere. The force applying arm of the torsion spring 123 is abutted against the smoke exhaust cover 12, and the force bearing arm of the torsion spring 123 is abutted against the base 1 to drive the smoke exhaust cover 12 to cover the front smoke channel.

Referring to fig. 4 and 5, fuse assembly 4 is mounted to base 1 such that when fuse assembly 4 senses a high temperature, smoke evacuation lid 12 is prevented from opening. Fusing assembly 4 includes a sliding seat 41, a sliding rod 42, a tension spring 43, a mounting plate 44, a fuse link 45, a fusing hook 46, a compression spring 47, a connecting plate 48 and a limit plate 49. The number of the sliding seats 41 is two, the two sliding seats 41 are fixedly connected to the base 1 and located at two sides of the smoke exhaust cover 12, two ends of the sliding rod 42 are respectively penetrated through the two sliding seats 41 and are connected to the sliding seats 41 in a sliding manner along the length direction of the sliding seats 41, so that the sliding rod 42 slides to the rotating position of the smoke exhaust cover 12 to limit the rotation of the smoke exhaust cover 12. The two ends of the sliding rod 42 extend to the opposite sides of the two sliding seats 41, the two ends of the tension spring 43 are fixedly connected to the two ends of the sliding rod 42 in a one-to-one correspondence manner, the fixing piece 16 is fixedly connected to one side of the base 1 away from the sliding seats 41, and the tension spring 43 is wound around and abutted against one side of the fixing piece 16 away from the sliding seats 41 and tensioned by the pulling of the fixing piece 16 to drive the sliding rod 42 to move towards one side of the locking smoke exhaust cover 12.

Referring to fig. 4 and 5, the two ends of the mounting plate 44 are fixedly connected to the sliding seat 41, and the mounting plate 44 is located on the side of the sliding seat 41 away from the fixing plate 16. The fusing hook 46 penetrates through the mounting plate 44, a connecting plate 48 is fixedly connected to one end, away from the base 1, of the fusing hook 46, a limiting plate 49 is fixedly connected to one side, away from the fusing hook 46, of the connecting plate 48, the limiting plate 49 and the connecting plate 48 are vertically arranged, and the limiting plate 49 abuts against one side, away from the fusing hook 46, of the sliding rod 42, so that the sliding rod 42 is not prone to moving to one side, away from the fusing hook 46. Fuse link 45 fixed connection is on base 1, and the one end that fusing hook 46 kept away from the connection piece is connected with fuse link 45 for fusing hook 46 is difficult for keeping away from base 1 and leads to the limiting plate 49 that is connected with fusing hook 46 indirectly to be difficult for breaking away from with slide bar 42. The compression spring 47 is sleeved on the fusing hook 46, one end of the compression spring 47 abuts against the mounting plate 44, and the leading end of the compression spring 47 abuts against the connecting plate 48, so that when the fusing piece 45 is fused, the compression spring 47 drives the limiting plate 49 to be away from the sliding rod 42, and the constraint on the sliding rod 42 is released.

Referring to fig. 4 and 6, in the embodiment of the present application, a magnetic block 125 is installed on a side of the smoke evacuation cover 12 away from the base 1, where the magnetic block 125 may be only magnetically attached to the smoke evacuation cover 12, or a placement groove 124 may be provided on the smoke evacuation cover 12, and the magnetic block 125 may be embedded in the placement groove 124, where the magnetic block 125 is embedded in the placement groove 124 to position-limit the magnetic block 125. The front flue gas exhaust pipe 12 is internally and fixedly connected with a magnetic attraction rod 111, the magnetic attraction rod 111 is positioned at one side of the front flue gas exhaust pipe 11 far away from the smoke exhaust cover 12, and the magnetic attraction rod 111 and the magnetic block 125 are magnetically attracted to drive the smoke exhaust cover 12 to cover the front flue gas exhaust pipe 11.

The implementation principle of the central magnetic seal type flue fireproof check valve in the embodiment of the application is as follows: during installation, the sealing ring 14 is sleeved on the rear flue gas discharge pipe 13, the mounting ring 142 abuts against the inner side wall of the rear flue gas discharge pipe 13, and the connecting ring 141 abuts against one end of the rear flue gas discharge pipe 13 far away from the base 1; the guide pipe 2 matched with the outdoor pipeline is selected, the corresponding guide pipe 2 is sleeved on the rear flue gas exhaust pipe 13, then the connecting rods 312 are mutually close, the rotating rod 311 is inserted into the corresponding pivot pipe 22, and the locking part 31 is rotated, so that the locking part 3131 slides through the protrusion 32 and then abuts against one side of the outer circumferential side wall of the base 1 and the protrusion 32, and the installation is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a central magnetism seals formula flue fire prevention check valve which characterized in that: including base (1) and honeycomb duct (2), flue gas calandria (11) before one side of base (1) is equipped with, base (1) keeps away from one side pin joint of preceding flue gas calandria (11) has the flue gas that supplies to push out the realization and discharges fume and covers (12), flue gas calandria (11) before lid (12) lid closes, base (1) keeps away from one side of preceding flue gas calandria (11) and still overlaps and is equipped with back flue gas calandria (13), it locates in back flue gas calandria (13) to discharge fume lid (12), honeycomb duct (2) cover is located on back flue gas calandria (13), be equipped with water conservancy diversion passageway (21) on honeycomb duct (2), be equipped with on honeycomb duct (2) a plurality of with honeycomb duct (2) install detachable component (3) on back flue gas calandria (13).

2. The central magnetic seal type flue fireproof check valve as claimed in claim 1, wherein: can dismantle subassembly (3) including locking piece (31), locking piece (31) are including dwang (311), connecting rod (312) and locking lever (313), the quantity of dwang (311) is two, two dwang (311) pin joint is on the outer peripheral lateral wall of honeycomb duct (2), the quantity of connecting rod (312) is two, two the one end one-to-one fixed connection of connecting rod (312) is in two the opposite side of dwang (311), the both ends one-to-one fixed connection in two of locking lever (313) the one end of dwang (311) is kept away from in connecting rod (312), one side of back flue gas calandria (13) is kept away from in base (1) to locking lever (313) butt.

3. The central magnetic seal type flue fireproof check valve as claimed in claim 2, wherein: detachable component (3) still includes arch (32), locking lever (313) includes locking part (3131) and two connecting portion (3132), two the one end one-to-one fixed connection in two of connecting portion (3132) on connecting rod (312), the both ends one-to-one fixed connection in two of locking part (3131) the other end of connecting portion (3132), one side of back flue gas calandria (13) is kept away from in base (1) protruding (32) fixed connection, one side of base (1)'s lateral wall is kept away from in protruding (32) butt locking part (3131).

4. The central magnetic seal type flue fireproof check valve as claimed in claim 2, wherein: fixedly connected with pivot on the lateral wall of honeycomb duct (2) takes over (22), the quantity of pivot taking over (22) is two and relative setting, two dwang (311) one-to-one wears to locate two in the pivot takes over (22).

5. The central magnetic seal type flue fireproof check valve as claimed in claim 4, wherein: the locking piece (31) is an elastic piece which drives the rotating rod (311) to approach and is inserted into the pivoting pipe (22).

6. The central magnetic seal type flue fireproof check valve as claimed in claim 1, wherein: still include sealing washer (14), between honeycomb duct (2) and back flue gas calandria (13) are located in sealing washer (14), the inside wall butt of sealing washer (14) and laminating are on the outer circumferential side wall of back flue gas calandria (13), the outside wall butt of sealing washer (14) and laminate on the interior circumferential side wall of honeycomb duct (2).

7. The fire-proof check valve of central magnetic sealing type flue of claim 6, wherein: fixedly connected with collar (142) on the inside wall of sealing washer (14), be equipped with between collar (142) and sealing washer (14) go-between (141), the outer peripheral lateral wall fixed connection of go-between (141) is on sealing washer (14), the inner peripheral lateral wall fixed connection of go-between (141) is on collar (142), the one end butt that base (1) was kept away from in back flue gas calandria (13) is on collar (141), collar (142) butt is on the inside wall of back flue gas calandria (13).

8. The central magnetic seal type flue fireproof check valve as claimed in claim 1, wherein: the smoke exhaust cover is characterized in that a rotating column (121) is fixedly connected to the smoke exhaust cover (12), the rotating column (121) is rotatably connected to the base (1), a torsion spring (123) is sleeved on the rotating column (121), the force applying arm of the torsion spring (123) is abutted to the smoke exhaust cover (12), and the stress arm of the torsion spring (123) is abutted to the base (1).

9. The central magnetic seal type flue fireproof check valve as claimed in claim 1, wherein: the base (1) is also fixedly connected with a fusing component (4) which is heated and triggered to lock the smoke exhaust cover (12).

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