CN212320035U

CN212320035U - Novel roof ventilation valve

Info

Publication number: CN212320035U
Application number: CN202020857922.5U
Authority: CN
Inventors: 王丽华; 钱淇
Original assignee: Jiangsu Deli Air Conditioning & Purification Equipment Co ltd
Current assignee: Jiangsu Deli Air Conditioning & Purification Equipment Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-01-08
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a novel roof ventilation valve, which comprises a body, wherein a mounting flange is arranged on the outer side of the body, a pneumatic device is arranged on one side of the body, a through hole is arranged on the body, a rotating shaft is arranged in the through hole, the pneumatic device can drive the rotating shaft to rotate, a rotating plate is arranged on the rotating shaft, the size of the rotating plate is matched with the through hole, and a sealing ring is arranged at the contact position of the rotating plate and the body; pneumatic means includes the executive device, intake pipe and reserve gas pitcher, intake pipe one end links to each other with the executive device, and the other end links to each other with outside air supply, and the air inlet of reserve gas pitcher links to each other with the intake pipe through first bronchus, and the gas outlet of reserve gas pitcher passes through the second bronchus and links to each other with the intake pipe, and the tie point of second bronchus and intake pipe is closer to the executive device than the tie point of first bronchus and intake pipe. The utility model discloses simple structure, convenient to use can control the switching of blast gate effectively, also can control the blast gate switching even when outside air supply goes wrong to it is sealed effectual.

Description

Novel roof ventilation valve

Technical Field

The utility model relates to a ventilation equipment technical field, concretely relates to novel roof vent valve.

Background

The air regulating valve is an indispensable central air-conditioning end fitting in ventilation, air conditioning and air purification projects of industrial factory buildings and civil buildings, is generally used in air conditioners and ventilation system pipelines, is used for regulating the air quantity of branch pipes, and can also be used for mixing and regulating fresh air and return air.

For example, when the use in the mill, because the produced heat etc. of mill need be through timely emission of blast gate, general blast gate is direct to be connected with outside air supply, with pneumatic switch control, but in case outside air supply goes wrong, then the ventilation valve just can not normally open and close, causes the incident easily to phenomenon such as easy emergence is leaked out when general ventilation valve closes, influences the use equally.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a novel roof vent valve, simple structure, convenient to use can control the switching of blast gate effectively, also can control the blast gate switching even when outside air supply goes wrong to it is sealed effectual.

In order to solve the technical problem, the utility model provides a novel roof ventilation valve, which comprises a body, wherein a mounting flange is arranged on the outer side of the body, a pneumatic device is arranged on one side of the body, a through hole is arranged on the body, a rotating shaft is arranged in the through hole, the pneumatic device can drive the rotating shaft to rotate, a rotating plate is arranged on the rotating shaft, the size of the rotating plate is matched with the through hole, and a sealing ring is arranged at the position where the rotating plate is contacted with the body;

pneumatic means includes executive device, intake pipe and reserve gas pitcher, intake pipe one end with executive device links to each other, and the other end links to each other with outside air supply, the air inlet of reserve gas pitcher through first bronchus with the intake pipe links to each other, the gas outlet of reserve gas pitcher pass through the second bronchus with the intake pipe links to each other, the second bronchus with the tie point of intake pipe is compared first bronchus with the tie point of intake pipe is closer to executive device.

Further, a first check valve is arranged on the first branch air pipe, and the direction of the first check valve is from the air inlet pipe to the air inlet of the standby air tank.

Further, a second one-way valve is arranged on the second branch gas pipe, and the direction of the second one-way valve is from the gas outlet of the standby gas tank to the gas inlet pipe.

Furthermore, a reinforcing rib is arranged on the rotating plate.

Further, the shape of the through hole and the rotating plate may be circular, elliptical or rectangular.

Further, a pressure release valve is arranged inside the standby gas tank.

The utility model has the advantages that: 1. the device is provided with the spare gas tank on the gas inlet pipe, and when an external gas source has a problem, the spare gas tank can play a role of a temporary gas source and continuously control the opening and closing of the ventilation valve;

2. an integrated rotating plate is arranged, and sealing rings are arranged on the periphery of the rotating plate, so that the sealing effect is good.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

The reference numbers in the figures illustrate: 1. a body; 2. installing a flange; 3. a pneumatic device; 31. an execution device; 32. an air inlet pipe; 33. a reserve tank; 34. an air inlet; 35. an air outlet; 36. a first bronchus; 37. a second bronchus; 38. a first check valve; 39. a second one-way valve; 4. a through hole; 5. a rotating shaft; 6. a rotating plate; 7. a seal ring; 8. reinforcing ribs; 9. and (4) releasing the valve.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1, an embodiment of a novel roof vent valve of the present invention includes a body 1, a mounting flange 2 is disposed outside the body 1, a pneumatic device 3 is disposed on one side of the body 1, a through hole 4 is disposed on the body 1, a rotating shaft 5 is disposed in the through hole 4, the pneumatic device 3 can drive the rotating shaft 5 to rotate, a rotating plate 6 is disposed on the rotating shaft 5, the size of the rotating plate 6 is matched with the through hole 4, and a sealing ring 7 is disposed at a position where the rotating plate 6 contacts with the body 1; the pneumatic device 3 comprises an execution device 31, an air inlet pipe 32 and a standby air tank 33, one end of the air inlet pipe 32 is connected with the execution device 31, the other end of the air inlet pipe is connected with an external air source, an air inlet 34 of the standby air tank 33 is connected with the air inlet pipe 32 through a first air branch pipe 36, an air outlet 35 of the standby air tank 33 is connected with the air inlet pipe 32 through a second air branch pipe 37, and the connection point of the second air branch pipe 37 and the air inlet pipe 32 is closer to the execution device 31 than the connection point of the first air branch pipe.

When the gas supply device is used, an external gas source provides gas for the work of the execution device 31 through the gas inlet pipe 32, and meanwhile, the standby gas tank 33 can also be inflated, when the gas inlet pipe 32 fails and can not supply gas normally, the standby gas tank 33 provides gas for the execution device 31 to work, the standby gas tank 33 and the gas inlet pipe 32 are arranged in parallel, a gas path can be provided for the execution device 31 at the same time, and the execution device 31 can be ensured to have enough gas to work at any time; meanwhile, according to actual conditions, more spare gas tanks 33 can be connected in parallel to provide gas for the execution device 31, then the execution device 31 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the rotating plate 6 to open or close the through hole 4, namely, opening and closing of the ventilation valve are controlled, when the rotating plate 6 and the body 1 are perpendicular to each other, the exhaust effect is best, the exhaust amount is also maximum, when the rotating plate 6 and the body 1 are in the same horizontal plane, namely, the ventilation valve is in a closed state, and because the sealing rings 7 are arranged on the periphery of the rotating plate 6, the sealing effect is better.

The first branch air pipe 36 is provided with a first one-way valve 38, the direction of the first one-way valve 38 is from the air inlet pipe 32 to the air inlet 34 of the standby air tank 33, and backflushing is prevented, the second branch air pipe 37 is provided with a second one-way valve 39, the direction of the second one-way valve 39 is from the air outlet 35 of the standby air tank 33 to the air inlet pipe 32, and the situation that the standby air tank 33 cannot be normally used due to the fact that air in the air inlet pipe 32 blocks the air outlet 35 is prevented.

The rotating plate 6 is provided with the reinforcing ribs 8, so that the strength of the rotating plate 6 is improved, the through holes 4 and the rotating plate 6 are matched for use, the shapes and the sizes are the same, the rotating plate can be designed to be circular, oval or rectangular, the application range is wide, and the rotating shaft 5 penetrates through the rotating plate 6.

Inside being provided with relief valve 9 of reserve gas pitcher 33 through purging higher pressure for the highest pressure of relief valve 9 is stabilized in the within range that reserve gas pitcher 33 can bear, ensures reserve gas pitcher 33's safety.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. A novel roof ventilation valve is characterized by comprising a body, wherein a mounting flange is arranged on the outer side of the body, a pneumatic device is arranged on one side of the body, a through hole is formed in the body, a rotating shaft is arranged in the through hole and can drive the rotating shaft to rotate, a rotating plate is arranged on the rotating shaft, the size of the rotating plate is matched with that of the through hole, and a sealing ring is arranged at the position where the rotating plate is in contact with the body;

2. The novel roof vent valve of claim 1, wherein a first one-way valve is provided on the first air branch pipe, the direction of the first one-way valve being from the air inlet pipe to the air inlet of the backup air tank.

3. The novel roof vent valve as claimed in claim 1, wherein a second one-way valve is provided on the second branch pipe, the second one-way valve being directed from the air outlet of the backup air tank to the air inlet pipe.

4. The new roof vent valve as claimed in claim 1, wherein said pivoting plate is provided with reinforcing ribs.

5. The novel roof vent valve of claim 1, wherein the shape of the through hole and the rotating plate can be circular, oval or rectangular.

6. The new roof vent valve as claimed in claim 1, wherein a pressure relief valve is provided inside the backup gas tank.