CN114151562A

CN114151562A - Smoke exhaust valve

Info

Publication number: CN114151562A
Application number: CN202111518175.8A
Authority: CN
Inventors: 孙金才; 孙金柱; 曲军; 王孟超; 孙朝元; 孙蓬元; 林朋
Original assignee: Shunda Air Conditioning Equipment Group Co ltd
Current assignee: Shunda Air Conditioning Equipment Group Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-03-08
Anticipated expiration: 2041-12-13
Also published as: CN114151562B

Abstract

The invention relates to a smoke exhaust valve which comprises a shell, wherein a containing cavity is formed in the shell, an installing mechanism is connected to one side of the shell, a filtering mechanism is fixedly connected to the middle of the shell, the filtering mechanism comprises a supporting frame, a piston cylinder is connected to the upper end of the inner wall of the supporting frame, a guide rod is connected to the output end of the piston cylinder, a fixing plate is connected to the lower end of the guide rod, a first swinging plate is connected to two sides of the fixing plate through a first rotating shaft, and a second swinging plate is connected to the first swinging plate through a second rotating shaft. The cigarette that smog passed through the filter screen gets into the sliding cylinder in, utilizes the filterable smog of the quick suction of exhaust fan on the rotating cylinder in the sliding cylinder to discharge outside the section of thick bamboo of discharging fume fast, utilize the oblique curb plate and the through-hole of third plate casing both sides to discharge, prevent in rainy day rainwater gets into the section of thick bamboo of discharging fume and evenly accelerate the concentration of decomposing smog, prevent that smog from invering.

Description

Smoke exhaust valve

Technical Field

The invention relates to a smoke exhaust valve.

Background

The smoke exhaust valve is a component in a smoke exhaust system, the requirement on the smoke exhaust valve is higher and higher along with the improvement of the living standard of people, the existing smoke exhaust valve is various in variety and generally comprises a valve body and a valve cover, and smoke exhaust is controlled by opening and closing the valve cover arranged at the front end of the valve body. In rural areas, due to economic problems, people usually select a stove to cook or warm, people usually use straws, coal or corncobs as fuel, but harmful gases and smoke generated by burning the straws, the coal or the corncobs need to be discharged in time, and the importance of ventilation equipment is embodied at the moment.

In the prior art, harmful gas and smoke generated by burning straws, coal or corncobs not only affect the environment, but also affect the health of people. The traditional smoke exhaust pipe is not provided with a smoke exhaust valve, the liquid discharge pipe only plays a role in exhausting smoke, and the phenomenon that a large amount of water is accumulated in the liquid discharge pipe and flows into a fire furnace and the smoke flows backwards can be caused in the case of strong wind or rain.

In order to solve the problems, the invention provides a smoke exhaust valve.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to overcome the defects of the prior art, adapt to the practical requirements and provide a smoke exhaust valve so as to solve the technical problems.

(2) Technical scheme

In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:

a smoke exhaust valve comprises a shell, wherein a containing cavity is formed in the shell, an installing mechanism is connected to one side of the shell, a filtering mechanism is fixedly connected to the middle of the shell, the filtering mechanism comprises a supporting frame, a piston cylinder is connected to the upper end of the inner wall of the supporting frame, a guide rod is connected to the output end of the piston cylinder, a fixing plate is connected to the lower end of the guide rod, first swing plates are connected to two sides of the fixing plate through first rotating shafts, second swing plates are connected to the first swing plates through second rotating shafts, third swing plates are connected to the second swing plates through third rotating shafts, a supporting plate is connected to the third swing plates through fourth rotating shafts, a filtering plate is connected to the lower end of the supporting plate, a channel is formed in the middle of the outer surface of an outer ring of the filtering plate, the supporting plate is connected to two sides of the upper portion of the channel, a filtering net is installed on the outer surface of the filtering plate, a containing shell is fixedly connected to the middle of the shell, the accommodating shell is internally provided with a swinging groove, two side walls of the swinging groove are connected with fixed rods, the outer surface of each fixed rod is sleeved with a fourth swinging plate, the fourth swinging plate is connected into two walls of the channel through a rotating body, the middle part of each guide rod is connected with a protection mechanism, one side of each filter plate is connected with a sliding structure, a baffle is fixedly connected to the periphery of one side of each filter plate, and two sides of each baffle are provided with through grooves; one side of the accommodating cavity is sleeved with a sliding cylinder, and one side of the sliding cylinder is rotatably connected with a rotating cylinder.

Further, installation mechanism includes the sleeve, and this muffjoint is in casing one end, and sleeve one side is connected with the rotation connecting plate, and this rotation connecting plate surface swivelling joint has tight system ring.

Furthermore, the top of the containing shell is connected with a square shell, and the lower part of the guide rod penetrates through the middle part of the square shell.

Further, protection mechanism includes first board cover, and this first board cover has the fixed plate through bolted connection, and this fixed plate middle part is connected at the guide bar middle part, and fixed plate one side fixedly connected with second board cover, and this second board cover one side fixedly connected with third board cover, and these third board cover both sides end is connected with oblique curb plate, and the through-hole has been seted up to this oblique curb plate surface.

Further, sliding construction includes the dead lever, and this dead lever one end is connected on the surface of swing board, and dead lever other end swivelling joint has the rotation post, and the sliding tray has been seted up to this rotation post one end surface, and this sliding tray adaptation has the rectangular plate, and this rectangular plate one side is connected with the bracing piece.

Further, the sliding part is evenly distributed on the outer surface of the sliding barrel and is matched with the sliding groove, the sliding groove is evenly distributed on the inner surface of the accommodating cavity, the rotating groove is formed in one side of the inside of the sliding barrel, the spring body is connected to one side wall of the rotating groove, one end of the spring body is connected with the pressing plate, and the side portion of the pressing plate abuts against the convex end portion of one end of the rotating barrel.

Furthermore, the upper part of one end of the rotating cylinder is connected with a smoke exhaust cylinder, the lower end inside the smoke exhaust cylinder is connected with an exhaust fan, the exhaust fan is arranged right at the lower end of the smoke exhaust cylinder, and the upper end of the smoke exhaust cylinder is arranged right at the lower end face of the third plate cover.

Furthermore, the degree of the inclined side plates can be discharged from two sides through holes at the upper ends of the inclined side plates at two sides.

Further, the support frame is connected on both sides of the upper end of the containing shell.

Further, casing one side is connected with surveys the cigarette ware, should survey the cigarette ware and wear to locate and hold the intracavity, survey cigarette ware upper end and be connected with the traffic lights, the space in swing groove is greater than the radius and the thickness of swing board, swivelling joint board is soft material, and toughness, moulding and intensity are stronger.

(3) Has the advantages that:

A. the smoke exhaust valve is a component in a smoke exhaust system, the smoke exhaust valve is clamped into a smoke exhaust pipe opening through the rotary connecting plate, and the rotary connecting plate has a certain opening force, so that the smoke exhaust valve is suitable for the size with smaller inner diameter of the smoke exhaust pipe opening.

B. The guide rod is moved upwards by utilizing a return spring in the piston cylinder, the fixing plate is synchronously driven, the fixing plate drives the first swinging plate, the second swinging plate, the third swinging plate, the supporting plate, the swinging plate, the fixing rod, the fourth swinging plate and the rotating body, and the swinging plates can be rotated and combined by utilizing the connection position relation of the first swinging plate, the second swinging plate, the third swinging plate, the supporting plate, the swinging plate, the fixing rod, the fourth swinging plate and the rotating body.

C. At there being the rainwater, snow falls or wind-force blows at first board cover, the back is covered to the second board, can make the swing board open, at the open in-process of swing board, because of dead lever and rotation post adaptation, so the sliding tray on the rotation post can slide along the rectangular plate in the swing board merges, the sliding cylinder is transmitted to the thrust of bracing piece, the sliding cylinder slides through sliding part and chute groove adaptation, and let the sliding cylinder slide with the rotation section of thick bamboo and stretch out, extrapolate the chimney, and then, push away the chimney to the position of keeping away from the through-hole, prevent to get into the rainwater, snow or dust, be favorable to protecting the chimney, avoided causing the fluid-discharge tube to have a large amount of sleet to flow into the stove and cause the cigarette phenomenon of irritating.

D. The cigarette that smog passed through the filter screen gets into the sliding cylinder in, utilizes the filterable smog of the quick suction of exhaust fan on the rotating cylinder in the sliding cylinder to discharge outside the section of thick bamboo of discharging fume fast, utilize the oblique curb plate and the through-hole of third plate casing both sides to discharge, prevent in rainy day rainwater gets into the section of thick bamboo of discharging fume and evenly accelerate the concentration of decomposing smog, prevent that smog from invering.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the smoke damper of the present invention;

FIG. 2 is an enlarged view of a portion of the connection between the smoke exhaust filter mechanism and the protection mechanism of the present invention;

FIG. 3 is an enlarged view of a portion of the connection of the smoke evacuation containment vessel of the present invention to the filter mechanism;

FIG. 4 is an enlarged view of a portion of the filter plate and the swing slot of the smoke damper swing plate of the present invention in alignment;

FIG. 5 is an enlarged view of a portion of the smoke damper filter mechanism of the present invention;

FIG. 6 is a partial enlarged view of the smoke damper sliding structure of the present invention;

FIG. 7 is a partial enlarged view of a sliding cylinder and a rotating cylinder of the smoke damper according to the present invention;

FIG. 8 is a schematic view of a smoke detector and a smoke exhaust structure of the smoke exhaust valve of the present invention.

The reference numbers are as follows:

the device comprises a shell 1, a containing shell 11, a square shell 12, a swing groove 13, a slide channel groove 14, a mounting mechanism 2, a sleeve 21, a rotary connecting plate 22, a tightening ring 23, a filter mechanism 3, a support frame 31, a piston cylinder 32, a guide rod 33, a fixing plate 34, a first swing plate 341, a second swing plate 342, a third swing plate 343, a support plate 344, a filter plate 35, a channel 351, a filter screen 352, a fixing rod 36, a fourth swing plate 361, a rotating body 362, a protection mechanism 4, a first plate cover 41, a bolt 42, a fixing plate 43, a second plate cover 44, a third plate cover 45, an inclined side plate 46, a through hole 461, a sliding structure 5, a fixing rod 51, a rotating column 52, a sliding groove 53, a rectangular plate 54, a support rod 55, a baffle 6, a through groove 61, a sliding cylinder 7, a sliding part 71, a rotating groove 72, a spring body 73, a pressing plate 74, a rotating cylinder 8, a smoke exhaust cylinder 81, an exhaust fan 82, a smoke detector 9, a traffic light 91, a traffic light, a light guide, a light guide, a light guide, a light, leading to the chute 100.

Detailed Description

The invention will be further illustrated with reference to the following figures 1 to 8 and examples:

a smoke exhaust valve comprises a shell 1, wherein a containing cavity is arranged in the shell 1, one side of the shell 1 is connected with an installing mechanism 2, the middle of the shell 1 is fixedly connected with a filtering mechanism 3, the filtering mechanism 3 comprises a supporting frame 31, the upper end of the inner wall of the supporting frame 31 is connected with a piston cylinder 32, the output end of the piston cylinder 32 is connected with a guide rod 33, a return spring is arranged in the piston cylinder 32, the guide rod 33 can restore the initial position after moving down for a distance through the return spring, the lower end of the guide rod 33 is connected with a fixed plate 34, two sides of the fixed plate 34 are connected with first swinging plates 341 through first rotating shafts, the first swinging plates 341 are connected with second swinging plates 342 through second rotating shafts, the second swinging plates 342 are connected with third swinging plates 343 through third rotating shafts, the third swinging plates 343 are connected with supporting plates 344 through fourth rotating shafts, the lower ends of the supporting plates 344 are connected with filter plates 35, the middle part of the outer surface of the outer ring of the filter plate 35 is provided with a channel 351, the support plates 344 are connected to two sides of the upper part of the channel 351, the outer surface of the filter plate 35 is provided with a filter screen 352, the middle part of the shell 1 is fixedly connected with an accommodating shell 11, a swing groove 13 is arranged in the accommodating shell 11, two side walls of the swing groove 13 are connected with fixed rods 36, the outer surface of each fixed rod 36 is sleeved with a fourth swing plate 361, the fourth swing plates 361 are connected into two walls of the channel 351 through a rotating body 362, the middle part of the guide rod 33 is connected with a protection mechanism 4, one side of the filter plate 35 is connected with a sliding structure 5, a baffle 6 is fixedly connected to the periphery of one side of the filter plate 35, and two sides of the baffle 6 are provided with through grooves 61; one side of the accommodating cavity is sleeved with a sliding cylinder 7, and one side of the sliding cylinder 7 is rotatably connected with a rotating cylinder 8. After rainwater and accumulated snow fall or wind blows on the first plate cover 41 and the second plate cover 44, the guide rod 33 is forced to move down along the piston cylinder 32, the first swinging plate 341 falls outside the fourth swinging plate 361, and the filter plates 35 are rotated around the fixed rod 36 by the pushing of the second swinging plate 342 and the third swinging plate 343, and then the two filter plates 35 which are arranged oppositely are opened.

In this embodiment, the mounting mechanism 2 comprises a sleeve 21, the sleeve 21 is connected to one end of the housing 1, a rotating connecting plate 22 is connected to one side of the sleeve 21, and a fastening ring 23 is rotatably connected to the outer surface of the rotating connecting plate 22. The sleeve 21 and the rotating connecting plate 22 on the installation mechanism 2 on the smoke exhaust valve can be used for installation in two modes, the first mode is that the rotating connecting plate 22 is clamped into the smoke exhaust pipe orifice, and the rotating connecting plate 22 has certain opening force, so that the smoke exhaust pipe orifice is suitable for the size with smaller inner diameter of the smoke exhaust pipe orifice, and the second mode is that the rotating connecting plate 22 is sleeved into the smoke exhaust pipe orifice, and the rotating connecting plate 22 is tightly clamped by the clamping ring 23 until the smoke exhaust pipe orifice is stable, so that the simple and convenient installation is facilitated, and the smoke exhaust valve is stable and fixed.

In this embodiment, the top of the accommodating case 11 is connected to the square case 12, and the lower portion of the guide rod 33 penetrates the middle of the square case 12. It is advantageous to stably guide the guide rod 33 by the accommodation case 11, avoiding the occurrence of deflection.

In this embodiment, the protection mechanism 4 includes a first plate cover 41, the first plate cover 41 is connected to a fixing plate 43 through a bolt 42, the middle portion of the fixing plate 43 is connected to the middle portion of the guide rod 33, a second plate cover 44 is fixedly connected to one side of the fixing plate 43, a third plate cover 45 is fixedly connected to one side of the second plate cover 44, two side ends of the third plate cover 45 are connected to inclined side plates 46, and through holes 461 are formed on outer surfaces of the inclined side plates 46. When the guide rod 33 is moved upwards by the power of the piston cylinder 32, the first plate cover 41, the second plate cover 44 and the third plate cover 45 on the protection mechanism 4 connected to the guide rod 33 are moved upwards at the same time and protect the shell 1 on the smoke exhaust valve in time, and when the guide rod 33 is moved downwards by the power of the piston cylinder 32, the first plate cover 41, the second plate cover 44 and the third plate cover 45 are moved downwards at the same time.

In this embodiment, the sliding structure 5 includes a fixing rod 51, one end of the fixing rod 51 is connected to the outer surface of the filter plate 35, the other end of the fixing rod 51 is rotatably connected to a rotating post 52, a sliding groove 53 is formed in the outer surface of one end of the rotating post 52, a rectangular plate 54 is adapted to the sliding groove 53, one end of the rectangular plate 54 abuts against the side wall, one end of the rectangular plate 54 is connected to a supporting rod 55, the outer end of the supporting rod 55 abuts against the sliding cylinder 7, a guiding chute 100 is formed in the rectangular plate 54 along the length direction, a connecting shaft is arranged in the sliding groove 53, and the connecting shaft is inserted into the guiding chute 100. When rain water, snow fall or wind blows on the first and second plate covers 41 and 44, the filter plate 35 is urged to open, and in the process of opening the filter plate 35, the sliding groove 53 of the rotary post 52 slides along the rectangular plate 54, so that the thrust of the support rod 55 is transmitted to the sliding cylinder 7, and the sliding cylinder 7 slides by fitting the sliding portion 71 with the sliding groove 14, and the sliding cylinder 7 and the rotary cylinder 8 are slidably extended.

In this embodiment, the outer surface of the sliding cylinder 7 is uniformly connected with sliding portions 71, the sliding portions 71 are adapted to the sliding grooves 14, the sliding grooves 14 are uniformly arranged on the inner surface of the accommodating cavity, one side of the inside of the sliding cylinder 7 is provided with a rotating groove 72, one side wall of the rotating groove 72 is connected with a spring body 73, one end of the spring body 73 is connected with a pressing plate 74, and the side portion of the pressing plate 74 abuts against the convex end portion at one end of the rotating cylinder 8. Under the push of the sliding structure 5, the sliding cylinder 7 and the rotating cylinder 8 are extended, the rotating cylinder 8 can be adjusted before installation, and the spring body 73 and the pressing plate 74 on the rotating groove 72 are utilized to push the side part against the convex part at one end of the rotating cylinder 8, so that the rotating cylinder 8 can be better fixed.

In this embodiment, the upper portion of one end of the rotating cylinder 8 is connected with an exhaust cylinder 81, the lower end of the interior of the exhaust cylinder 81 is connected with an exhaust fan 82, the exhaust fan 82 is arranged right opposite to the lower end of the exhaust cylinder 81, and the upper end of the exhaust cylinder 81 is arranged right opposite to the lower end face of the third plate cover 45. Because rainwater, snow or wind-force blow, make first board cover 41, second board cover 44 form the holding down force, and then, open filter 35 through filter mechanism 3, and can know through aforementioned working process, can extrapolate chimney 81, and then, push away chimney 81 to the position of keeping away from through-hole 461, prevent to get into rainwater, snow or dust, be favorable to protecting chimney 81.

In this embodiment, the inclined side plates 46 are at an angle of 45 degrees, and the smoke can be discharged from both sides through the through holes 461 at the upper ends of the inclined side plates 46 at both sides. Under the circumstances of guaranteeing the smog to be discharged fast through the through hole 461, moreover, can avoid falling into the foreign matter through the through hole 461 into the chimney 81.

In this embodiment, the supporting frame 31 is connected to both sides of the upper end of the accommodating case 11. The rigidity of the whole valve body is improved.

In this embodiment, casing 1 one side is connected with surveys cigarette ware 9, should survey cigarette ware 9 and wear to locate and hold the intracavity, survey cigarette ware 9 upper end and be connected with traffic lights 91, should survey cigarette ware 9 and be smoke transducer, and the model is KM75M71, the space of swing groove 13 is greater than the radius and the thickness of filter 35, swivelling joint board 22 is soft material, and toughness, moulding and intensity are stronger.

The invention has the beneficial effects that:

the smoke exhaust valve is a component in a smoke exhaust system, is improved in a filtering, mounting, protecting, turning and stretching mode, is clamped into a smoke exhaust pipe opening by using a rotary connecting plate 22, is suitable for the size with smaller inner diameter of the smoke exhaust pipe opening due to certain opening force of the rotary connecting plate 22, is sleeved into the smoke exhaust pipe opening by using the rotary connecting plate 22, and is fastened by using a fastening ring 23 until the rotary connecting plate 22 is stable, so that the smoke exhaust valve is beneficial to simple and convenient mounting and is stably fixed.

The guide rod 33 is moved upward by a return spring in the piston cylinder 32, and the fixing plate 34 is synchronously driven, and the fixing plate 34 drives the first swing plate 341, the second swing plate 342, the third swing plate 343, the support plate 344, the filter plate 35, the fixing rod 36, the fourth swing plate 361 and the rotating body 362, and the filter plate 35 can be rotated and combined by the connection position relationship of them, and the air can be purified because the filter screen 352 is arranged on the filter plate 35.

After rainwater and snow fall or wind blows on the first plate cover 41 and the second plate cover 44, the filter plate 35 can be prompted to open, in the opening process of the filter plate 35, due to the fact that the fixing rod 51 is matched with the rotating column 52, the sliding groove 53 in the rotating column 52 can slide along the rectangular plate 54 in the combination process of the filter plate 35, the thrust of the supporting rod 55 is transmitted to the sliding cylinder 7, the sliding cylinder 7 slides through the matching of the sliding portion 71 and the sliding channel groove 14, the sliding cylinder 7 and the rotating cylinder 8 stretch out in a sliding mode, the smoke exhaust cylinder 81 is pushed outwards, the smoke exhaust cylinder 81 is pushed to the position far away from the through hole 461, rainwater, snow or dust is prevented from entering, the smoke exhaust cylinder 81 is protected, and the phenomenon that a large amount of rain and snow flow into the fire furnace to cause smoke backflow is avoided.

The smoke that the smog passed through filter screen 352 gets into in the sliding barrel 7, utilizes exhaust fan 82 on the section of thick bamboo 8 of rotating to suck filterable smog fast in sliding barrel 7 to discharge outside chimney 81 fast, utilize oblique curb plate 46 and through-hole 461 of third plate casing 45 both sides to discharge, prevent in rainy day rainwater get into in chimney 81 and evenly accelerate the concentration of decomposing smog, prevent that smog from inverting.

The working principle is as follows: firstly, the smoke exhaust valve is arranged at the mouth of the smoke exhaust pipe, two modes of installation can be carried out by utilizing the sleeve 21 and the rotary connecting plate 22 on the installation mechanism 2 on the smoke exhaust valve, the first mode is that the rotary connecting plate 22 is clamped into the smoke exhaust pipe, and the rotary connecting plate 22 has certain opening force, so that the smoke exhaust pipe is suitable for the size with smaller inner diameter of the smoke exhaust pipe, and the second mode is that the rotary connecting plate 22 is sleeved into the mouth of the smoke exhaust pipe, and the rotary connecting plate 22 is tightly clamped by utilizing the tightening ring 23 until the smoke exhaust pipe is stable, thereby being beneficial to simple and convenient installation and stable fixation.

The smoke that the smog passed through filter screen 352 gets into in the sliding barrel 7, utilizes exhaust fan 82 on the section of thick bamboo 8 of rotating to suck filterable smog fast in sliding barrel 7 to discharge to in the chimney 81 fast, utilize oblique curb plate 46 and the through-hole 461 of third plate casing 45 both sides to discharge, prevent in rainy day that the rainwater gets into in the chimney 81 and evenly accelerates the concentration of decomposing smog, prevent that smog from inverting.

The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.

Claims

1. A smoke exhaust valve comprises a shell (1) and is characterized in that a containing cavity is formed in the shell (1), an installing mechanism (2) is connected to one side of the shell (1), a filtering mechanism (3) is fixedly connected to the middle of the shell (1), the filtering mechanism (3) comprises a supporting frame (31), a piston cylinder (32) is connected to the upper end of the inner wall of the supporting frame (31), a guide rod (33) is connected to the output end of the piston cylinder (32), a fixing plate (34) is connected to the lower end of the guide rod (33), first swinging plates (341) are connected to two sides of the fixing plate (34) through a first rotating shaft, a second swinging plate (342) is connected to the first swinging plate (341) through a second rotating shaft, a third swinging plate (343) is connected to the second swinging plate (342) through a third rotating shaft, and a supporting plate (344) is connected to the third swinging plate (343) through a fourth rotating shaft, the lower end of the supporting plate (344) is connected with a filtering plate (35), the middle part of the outer surface of the outer ring of the filtering plate (35) is provided with a channel (351), the supporting plate (344) is connected on two sides of the upper part of the channel (351), the outer surface of the filtering plate (35) is provided with a filtering net (352), the middle part of the shell (1) is fixedly connected with a containing shell (11), a swinging groove (13) is arranged inside the containing shell (11), two side walls of the swinging groove (13) are connected with fixing rods (36), the outer surface of each fixing rod (36) is sleeved with a fourth swinging plate (361), the fourth swinging plate (361) is connected into two walls of the channel (351) through a rotating body (362), the middle part of the guide rod (33) is connected with a protection mechanism (4), one side of the filtering plate (35) is connected with a sliding structure (5), and a baffle (6) is fixedly connected around one side of the filtering plate (35), through grooves (61) are formed in the two sides of the baffle (6); one side of the accommodating cavity is sleeved with a sliding cylinder (7), and one side of the sliding cylinder (7) is rotatably connected with a rotating cylinder (8).

2. A smoke evacuation valve as claimed in claim 1 wherein: the mounting mechanism (2) comprises a sleeve (21), the sleeve (21) is connected to one end of the shell (1), one side of the sleeve (21) is connected with a rotating connecting plate (22), and the outer surface of the rotating connecting plate (22) is rotatably connected with a clamping ring (23).

3. A smoke evacuation valve as claimed in claim 2 wherein: the top of the containing shell (11) is connected with a square shell (12), and the lower part of the guide rod (33) penetrates through the middle part of the square shell (12).

4. A smoke evacuation valve as claimed in claim 3 wherein: protection machanism (4) are including first board cover (41), and this first board cover (41) are connected with fixed plate (43) through bolt (42), and this fixed plate (43) middle part is connected at guide bar (33) middle part, and fixed plate (43) one side fixedly connected with second board cover (44), and this second board cover (44) one side fixedly connected with third board cover (45), and this third board cover (45) both sides end is connected with oblique curb plate (46), and through-hole (461) have been seted up to this oblique curb plate (46) surface.

5. An extractor hood valve according to claim 4, wherein: the sliding structure (5) comprises a fixing rod (51), one end of the fixing rod (51) is connected to the outer surface of the filter plate (35), the other end of the fixing rod (51) is rotatably connected with a rotating column (52), a sliding groove (53) is formed in the outer surface of one end of the rotating column (52), the sliding groove (53) is matched with a rectangular plate (54), and one side of the rectangular plate (54) is connected with a supporting rod (55).

6. An extractor hood valve according to claim 5, wherein: sliding section (71) are connected with to sliding barrel (7) surface equipartition, and this sliding section (71) adaptation is in slide groove (14), and this slide groove (14) equipartition is seted up on holding the intracavity surface, and sliding barrel (7) inside one side has seted up rotation groove (72), is connected with on this rotation groove (72) a lateral wall and has played spring body (73), and this spring body (73) one end is connected with clamp plate (74), and this clamp plate (74) lateral part top is supported on the protruding tip of rotating barrel (8) one end.

7. An extractor hood valve according to claim 6, wherein: the upper portion of one end of the rotating cylinder (8) is connected with an exhaust cylinder (81), the lower end inside the exhaust cylinder (81) is connected with an exhaust fan (82), the exhaust fan (82) is arranged right at the lower end of the exhaust cylinder (81), and the upper end of the exhaust cylinder (81) is arranged right at the lower end face of the third plate cover (45).

8. An extractor hood valve according to claim 7, wherein: the inclined side plates (46) are at 45 degrees, and smoke is discharged from two sides of the through holes (461) at the upper ends of the inclined side plates (46) at two sides.

9. An extractor hood valve according to claim 8, wherein: the support frame (31) is connected to two sides of the upper end of the accommodating shell (11).

10. A smoke evacuation valve as claimed in claim 9 wherein: one side of the shell (1) is connected with a smoke detector (9), and the smoke detector (9) is arranged in the accommodating cavity in a penetrating mode; the upper end of the smoke detector (9) is connected with a traffic light (91), the space of the swing groove (13) is larger than the radius and the thickness of the filter plate (35), and the rotary connecting plate (22) is made of soft materials.