CN217177539U

CN217177539U - Fireproof check valve

Info

Publication number: CN217177539U
Application number: CN202221062835.6U
Authority: CN
Inventors: 姚晓阳; 孙洪兴; 查光林; 李洪圆
Original assignee: TONGLING SIND VALVES HEAD FACTORY
Current assignee: TONGLING SIND VALVES HEAD FACTORY
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-08-12
Anticipated expiration: 2032-05-06

Abstract

The utility model provides a fire prevention type check valve relates to check valve technical field, including the check valve main part, the outer fixed surface of check valve main part is connected with the mounting panel, and the positive surface of check valve main part inlays and is equipped with out the tobacco pipe, and the inner wall surface of check valve main part passes through the first hinge of bolt fixedly connected with, and a side surface of first hinge passes through bolt fixedly connected with apron, and the access window has been seted up on the positive surface of check valve main part. The utility model discloses in, when needing to wash the check valve main part, open the buckle, pass through the hinge rotation with the door plant, open the access panel, unscrew the bolt and take out first hinge and the apron from the access panel and wash, convenient and fast overhauls and washs the completion back, resets first hinge and apron, promotes the door plant, makes the inside of door plant embedding access panel, and the rear surface of door plant is closely laminated with sealed the pad simultaneously, avoids having the gap, ensures the sealed effect of check valve main part.

Description

Fireproof check valve

Technical Field

The utility model relates to a check valve technical field especially relates to a fire prevention type check valve.

Background

The flue check valve is a safe guard in your family, can effectively prevent toxic waste gas and oil smoke exhausted by other families in a public flue from flowing back into own family, can prevent winged insects such as mosquitoes, moths and flies and crawlers such as geckos from entering the family, and most importantly can ensure the air sanitation and safety in your family.

However, when the check valve is cleaned in the prior art, the check valve needs to be integrally detached, the cleaning is inconvenient, and in the prior art, the smoke exhaust guide pipe and the check valve are fixed through screws, so that the tightness is poor, the smoke exhaust guide pipe is stressed in the smoke exhaust process, and the screw-fixed point position is very easy to break.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art when wasing the check valve, need wholly pull down the check valve, wash inconveniently, among the prior art, the pipe of discharging fume and check valve pass through the screw fixation moreover, and the seal is poor, and the pipe atress of discharging fume at the in-process of discharging fume, the screw fixation's point is very easily cracked technical problem, and the fire prevention type check valve that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a fire prevention type check valve, includes the check valve main part, the outer fixed surface of check valve main part is connected with the mounting panel, the positive surface of check valve main part inlays and is equipped with out the tobacco pipe, the inner wall surface of check valve main part passes through the first hinge of bolt fixedly connected with, a side surface of first hinge passes through bolt fixedly connected with apron, the access window has been seted up on the positive surface of check valve main part, the positive surface of check valve main part is connected with the door plant through the hinge rotation, the positive surface of door plant and the positive fixed surface of check valve main part are connected with the buckle, the inner wall fixed surface of check valve main part is connected with spacing frame, the positive fixed surface of spacing frame is connected with sealed the pad.

Preferably, one end of the smoke outlet pipe is provided with a groove, and the groove is positioned right in front of the check valve main body.

Preferably, an installation groove is formed in one end of the smoke outlet pipe, and a rubber ring is embedded in the installation groove.

Preferably, a guide plate is fixedly connected to the surface of the inner wall of the check valve main body, and the guide plate is located below the smoke outlet pipe.

Preferably, the cross section of the guide plate is fan-shaped.

Preferably, the rear surface of the mounting plate is fixedly connected with a rubber pad, and the outer surface of the check valve body is sleeved with the rubber pad.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model discloses in, when needing to wash pipe and the check valve main part of discharging fume, open the buckle, pass through the hinge rotation with the door plant, open the access panel, unscrew the bolt and take out first hinge and the apron from the access panel and wash, convenient and fast, overhaul and wash the completion back, reset first hinge and apron, promote the door plant, make the inside of door plant embedding access panel, the rear surface of door plant is closely laminated with sealed the pad simultaneously, avoids having the gap, ensures the sealed effect of check valve main part.

2. The utility model discloses in, the ribbon embedding recess's of fixed pipe of discharging fume inside, the pipe of avoiding discharging fume slides, break away from out the tobacco pipe, improve the pipe of discharging fume and go out the frictional force of tobacco pipe, when stopping to discharge fume, the apron rotates under the action of gravity and the drive of the inside air current of flue, the lower surface of apron with inlay the surface laminating of establishing the rubber ring inside the mounting groove, the rubber ring provides the buffering, take place deformation after avoiding the apron atress, the sealed effect of guarantee apron and play tobacco pipe improves the life of spare part.

Drawings

Fig. 1 is a schematic front perspective view of a fireproof check valve according to the present invention;

fig. 2 is a schematic rear perspective view of the fireproof check valve of the present invention;

fig. 3 is a schematic sectional perspective view of the fireproof check valve of the present invention;

fig. 4 is an enlarged schematic view of a position a in fig. 3 of the fireproof check valve according to the present invention.

Illustration of the drawings: 1. a check valve body; 2. mounting a plate; 3. a rubber pad; 4. discharging the smoke tube; 5. a groove; 6. a limiting frame; 7. a gasket; 8. a door panel; 9. buckling; 10. an access panel; 11. a baffle; 12. a cover plate; 13. a first hinge; 14. a groove; 15. a rubber ring.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1-4, the utility model provides a fire prevention type check valve, including check valve main part 1, check valve main part 1's external fixed surface is connected with mounting panel 2, check valve main part 1's positive surface inlays and is equipped with out tobacco pipe 4, check valve main part 1's inner wall surface passes through the first hinge 13 of bolt fixedly connected with, a side surface of first hinge 13 passes through bolt fixedly connected with apron 12, access window 10 has been seted up on check valve main part 1's positive surface, check valve main part 1's positive surface is connected with door plant 8 through the hinge rotation, door plant 8's positive surface and check valve main part 1's positive fixed surface are connected with buckle 9, check valve main part 1's inner wall fixed surface is connected with spacing frame 6, spacing frame 6's positive fixed surface is connected with sealed 7 pad.

The check valve has the advantages that the check valve main body 1 is embedded inside a flue, the mounting plate 2 is fixed on the outer surface of the flue through screws, a smoke exhaust guide pipe of a range hood is connected with one end of a smoke outlet pipe 4 through a binding belt, smoke is guided into the smoke outlet pipe 4 under the action of the range hood, the cover plate 12 is pushed to rotate through the first hinge 13, one end of the smoke outlet pipe 4 is opened, the smoke is guided into the flue, when the smoke exhaust guide pipe and the check valve main body 1 need to be cleaned, the buckle 9 is opened, the door plate 8 is rotated through the hinge, the access window 10 is opened, the first hinge 13 and the cover plate 12 are taken out of the access window 10 to be cleaned by screwing off the bolt, the access window is convenient and rapid, after the access and cleaning are finished, the first hinge 13 and the cover plate 12 are reset, the door plate 8 is pushed to be embedded inside the access window 10, and meanwhile, the rear surface of the door plate 8 is tightly attached to the sealing gasket 7, avoid having the gap, ensure check valve main part 1's sealed effect.

As shown in fig. 1-4, one end of the smoke outlet pipe 4 is provided with a groove 5, the groove 5 is located right in front of the check valve body 1, one end of the smoke outlet pipe 4 is provided with a mounting groove 14, a rubber ring 15 is embedded inside the mounting groove 14, a guide plate 11 is fixedly connected to the surface of the inner wall of the check valve body 1, the guide plate 11 is located below the smoke outlet pipe 4, the cross section of the guide plate 11 is fan-shaped, a rubber pad 3 is fixedly connected to the rear surface of the mounting plate 2, and the outer surface of the check valve body 1 is sleeved with the inner part of the rubber pad 3.

The effect that it reaches is, the ribbon of the fixed exhaust fume duct imbeds the inside of the groove 5, avoid the exhaust fume duct to slip, break away from the smoke outlet pipe 4, improve the friction force of exhaust fume duct and smoke outlet pipe 4, when stopping discharging fume, the cover plate 12 rotates under the action of gravity and the drive of the internal air current of the flue, the lower surface of the cover plate 12 is attached with the outer surface of the rubber ring 15 embedded inside the mounting groove 14, the rubber ring 15 provides the cushion, avoid the cover plate 12 from deforming after being stressed, ensure the sealing effect of the cover plate 12 and smoke outlet pipe 4, improve the service life of the spare part, when the hot air rising inside the flue enters the inside of the check valve body 1, the inclined guide plate 11 guides the hot air, accelerate the flow speed of the air, drive the air discharged from the smoke outlet pipe 4 to flow out fast, the guide plate 11 is an arc plate, make the air current rise steadily, simultaneously avoid the internal eddy current of the flue from forming through the smoke outlet pipe 4, the rubber pad 3 fills the gap between mounting panel 2 and the flue, for mounting panel 2 and flue provide the buffering, flue atress is too high when avoiding the installation, leads to the flue cracked.

The working principle is as follows: the check valve main body 1 is embedded inside a flue, the mounting plate 2 is fixed on the outer surface of the flue through screws, a smoke exhaust guide pipe of a range hood is connected with one end of a smoke outlet pipe 4 through a binding belt, smoke is guided into the smoke outlet pipe 4 under the action of the range hood, the cover plate 12 is pushed to enable the cover plate 12 to rotate through the first hinge 13, one end of the smoke outlet pipe 4 is opened, the smoke is guided into the flue, when the smoke exhaust guide pipe and the check valve main body 1 need to be cleaned, the buckle 9 is opened, the door plate 8 rotates through the hinge, the access window 10 is opened, the first hinge 13 and the cover plate 12 are taken out from the access window 10 to be cleaned by screwing off the bolt, the operation is convenient and rapid, after the access cleaning is completed, the first hinge 13 and the cover plate 12 are reset, the door plate 8 is pushed to enable the door plate 8 to be embedded inside the access window 10, meanwhile, the rear surface of the door plate 8 is tightly attached to the sealing gasket 7, and gaps are avoided, the sealing effect of the check valve main body 1 is ensured, a ribbon for fixing the smoke exhaust guide pipe is embedded into the groove 5, the smoke exhaust guide pipe is prevented from sliding and separating from the smoke outlet pipe 4, the friction force between the smoke exhaust guide pipe and the smoke outlet pipe 4 is improved, when smoke exhaust is stopped, the cover plate 12 rotates under the action of gravity and the driving of airflow in the smoke flue, the lower surface of the cover plate 12 is attached to the outer surface of the rubber ring 15 embedded in the installation groove 14, the rubber ring 15 provides buffer to prevent the cover plate 12 from deforming after being stressed, the sealing effect of the cover plate 12 and the smoke outlet pipe 4 is ensured, the service life of parts is prolonged, when the hot air rising in the smoke flue enters the check valve main body 1, the inclined guide plate 11 guides the hot air to flow, the flowing speed of the air is accelerated, the air discharged from the smoke outlet pipe 4 is driven to flow back quickly, the guide plate 11 is an arc-shaped plate to enable the airflow to rise stably, and simultaneously prevent the vortex formed in the smoke flue from passing through the smoke outlet pipe 4, the rubber pad 3 fills the gap between mounting panel 2 and the flue, for mounting panel 2 and flue provide the buffering, flue atress is too high when avoiding the installation, leads to the flue cracked.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. A fire prevention type check valve, includes check valve main part (1), its characterized in that: the utility model discloses a check valve, including check valve main part (1), the outer fixed surface of check valve main part (1) is connected with mounting panel (2), the positive surface of check valve main part (1) inlays and is equipped with out tobacco pipe (4), the inner wall surface of check valve main part (1) passes through the first hinge (13) of bolt fixedly connected with, a side surface of first hinge (13) passes through bolt fixedly connected with apron (12), access window (10) have been seted up on the positive surface of check valve main part (1), the positive surface of check valve main part (1) is connected with door plant (8) through the hinge rotation, the positive fixed surface of the positive surface of door plant (8) and check valve main part (1) is connected with buckle (9), the inner wall fixed surface of check valve main part (1) is connected with spacing frame (6), the positive fixed surface of spacing frame (6) is connected with sealed the pad (7).

2. A firesafe check valve according to claim 1 wherein: one end of the smoke outlet pipe (4) is provided with a groove (5), and the groove (5) is positioned right in front of the check valve main body (1).

3. A firesafe check valve according to claim 2 wherein: an installation groove (14) is formed in one end of the smoke outlet pipe (4), and a rubber ring (15) is embedded in the installation groove (14).

4. A firesafe check valve according to claim 3 wherein: the inner wall surface of the check valve main body (1) is fixedly connected with a guide plate (11), and the guide plate (11) is positioned below the smoke outlet pipe (4).

5. A firesafe check valve according to claim 4 wherein: the cross section of the guide plate (11) is fan-shaped.

6. A firesafe check valve according to claim 5 wherein: the rear surface of mounting panel (2) fixed connection has rubber pad (3), the surface of check valve main part (1) is located to the inside cover of rubber pad (3).