CN216555520U

CN216555520U - Air-changing ventilation check valve

Info

Publication number: CN216555520U
Application number: CN202123159487.2U
Authority: CN
Inventors: 郭辉; 高守勇
Original assignee: Simon Electric China Co Ltd
Current assignee: Simon Electric China Co Ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-05-17
Anticipated expiration: 2031-12-16

Abstract

The utility model relates to a ventilation check valve, which comprises an air outlet end, an air inlet end and a counter-flow water partition connecting the air outlet end and the air inlet end, wherein the lower surface of the air inlet end is higher than the lower surface of the air outlet end, so that the counter-flow water partition has a gradient of 30-60 degrees. By adopting the ventilation and ventilation check valve, the check valve is decomposed into three parts, namely ventilation, check and positioning, by deconstructing the installation environment and the characteristics of accessories, and by material characteristics and reasonable structural design, the product can be conveniently and conveniently installed indoors, nesting of flying birds and backflow water are avoided, and a healthy indoor space is provided for users.

Description

Air-changing ventilation check valve

Technical Field

The utility model belongs to the field of household ventilation installation and application, and particularly relates to a ventilation check valve.

Background

Traditional ceiling type bathroom heater and scavenger fan etc. possess the ventilation function's product, can discharge indoor bad air to outdoor through the ventilation pipe to air-purifying. Generally, a check valve is installed at the end of the ventilation pipe to prevent the outdoor air from flowing backward.

However, the existing check valve is installed at a high position, and because of safety considerations, the check valve is installed indoors for high-rise users, but the air outlet holes of the wall body are easily nested by birds, the air outlet pipeline is blocked, indoor air cannot be discharged outside, and the human health is affected; in addition, when the temperature difference between the indoor exhaust gas and the outdoor air is large, condensed water is easy to generate and flows back into the ventilation pipe, and even influences the ventilation main machine. If the check valve is installed outdoors, air outlets in small spaces such as a bathroom and the like are limited by the fact that a window is too small to smoothly enter and exit, and even though the air outlets are operated outdoors at high altitude, life safety of installation workers is threatened, so that the proportion of installing the check valve in the air outlet of the bathroom through outdoors is very small in the market at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a brand-new ventilation check valve, which avoids nesting birds in a wall to block a ventilation pipeline and backflow water flowing backwards, thereby ensuring the health of users; the installation is convenient indoor, and the safety of installation operators is guaranteed.

In order to achieve the purpose, the ventilation check valve provided by the utility model has the following technical scheme:

the ventilation check valve comprises an air outlet end, an air inlet end and a countercurrent water partition connected with the air outlet end and the air inlet end, wherein the lower surface of the air inlet end is higher than the lower surface of the air outlet end, so that the countercurrent water partition has a gradient of 30-60 degrees.

Preferably, the lower surface of the air inlet end is higher than the lower surface of the air outlet end by a distance of 5-15 mm.

Preferably, a grille is arranged at the outlet of the air outlet end.

Preferably, the grid is a 10mm by 10mm perforated grid.

Preferably, a movable check sheet and a limit are arranged inside the air inlet end, the movable check sheet can rotate relative to the main body of the air inlet end, and the limit is arranged on the inner wall of the air inlet end corresponding to the movable check sheet.

Preferably, the check valve is provided with a mounting plate having a mounting hole.

In conclusion, the ventilation check valve has the advantages that the reverse flow water partition is arranged inside the valve body, and when raining or condensed water exists, the reverse flow water partition blocks the reverse flow water, so that water cannot be poured into the ventilation pipe; a grid is arranged at an outlet of the air outlet end, and outdoor flying birds and the like cannot enter the wall body through the grid; the check sheet limit is arranged inside the valve body, and when outdoor wind pressure is large and wind is blown indoors, the check sheet limit can block the check sheet from rotating inwards, and outdoor air is prevented from entering indoors.

Drawings

Fig. 1 is a schematic structural view of the ventilation/ventilation check valve of the present invention.

Fig. 2 is a side view of the ventilation check valve of the present invention.

Fig. 3 is a front view of the ventilation check valve of the present invention.

Fig. 4 is a schematic structural view of the ventilation/ventilation check valve of the present invention when it is connected to the ventilation pipe.

Fig. 5 is a schematic view of an indoor view of the ventilating/ventilating check valve and the ventilating pipe of the present invention when the ventilating/ventilating check valve and the ventilating pipe are installed on a wall.

Fig. 6 is a schematic view of the ventilation check valve and the ventilation pipe of the present invention from an outdoor perspective when the ventilation check valve and the ventilation pipe are installed on a wall.

Fig. 7 is a sectional view of the ventilating/ventilating check valve and the ventilating pipe of the present invention after being installed on a wall.

Fig. 8 is a partially enlarged view of fig. 7.

Reference numerals

1 air outlet end

2 check valve mounting hole

4 air inlet end

5 non-return sheet mounting hole

7 movable check sheet

8 ventilating pipe

9 fixing piece

10 indoor wall

13 outdoor wall

14 position limiting

15 grid

16 counterflow water partition

17 valve body.

Detailed Description

In order to more clearly describe the technical contents of the present invention, the following further description is given in conjunction with specific embodiments.

Fig. 1 to 8 are schematic structural views of an embodiment of the ventilation/ventilation check valve of the present invention. The check valve comprises a valve body 17, an air outlet end 1, an air inlet end 4 and a reverse flow water partition 16 connecting the air outlet end 1 and the air inlet end 4, wherein the lower surface of the air inlet end 4 is higher than the lower surface of the air outlet end 1, so that the reverse flow water partition 16 has a gradient of 30-60 degrees, such as 45 degrees.

The inside water wall 16 that flows against the current of check valve has certain slope, and when a small amount of comdenstion water formed the adverse current, the water wall 16 that flows against the current can prevent the comdenstion water to get into the tuber pipe, can receive the influence of gravity when the comdenstion water is more or outdoor rainwater progress is more directly to flow out the check valve from the air-out end.

In an embodiment of the check valve provided by the present invention, a lower surface of the air inlet end 4 is 5-15 mm higher than a lower surface of the air outlet end 1, for example, 10 mm.

As shown in fig. 2, a grille 15 is disposed at the outlet of the air outlet end 1. The grid 15 may be a 10mm by 10mm perforated grid.

As shown in fig. 1 to 8, a movable check plate 7 and a limit 14 are arranged inside the air inlet end 4, the movable check plate 7 is rotatable relative to the main body of the air inlet end 4, the limit 14 is arranged on the inner wall of the air inlet end 4 corresponding to the movable check plate 7, and the movable check plate 7 is arranged on the main body of the air inlet end 4 through a check plate mounting hole 5.

The check valve is provided with a mounting piece with a check valve mounting hole 2.

Fig. 4 to 6 are schematic views illustrating the installation of the ventilation/ventilation check valve according to the present invention. During installation, the ventilation pipe 8 can be connected with the air inlet end 4 of the check valve through the fixing piece 9 in advance, the valve body 17 of the check valve provided with the ventilation pipe 8 is directly inserted into a prefabricated wall ventilation hole, the direction is adjusted to enable the check sheet 7 to be in a natural vertical state, and the check valve is fixed on the wall through screws, so that installation can be completed.

Fig. 7 to 8 are schematic views illustrating the working principle of the ventilation/ventilation check valve of the present invention. Specifically, the check valve is internally provided with a movable check sheet 7, when the ventilation is closed, the movable check sheet 7 is in a vertical state under the influence of gravity, when the ventilation is opened, if the air is exhausted from the indoor space to the outside, the movable check sheet 7 is in a horizontal state under the influence of wind power, and if the air is filled from the outdoor space to the inside, the movable check sheet 7 is blocked by a check valve limit 14 to prevent the outdoor air from flowing backwards. And because the inside water wall 16 that flows against the current of check valve has certain slope, when a small amount of comdenstion water forms the adverse current, the water wall 16 that flows against the current can prevent the comdenstion water to get into the tuber pipe, can receive the influence of gravity direct from the air-out end back flow check valve when the comdenstion water is more or outdoor rainwater progress is more. The grid 15 arranged at the end part of the air outlet end of the check valve guarantees smooth air outlet and prevents flying birds from flying into the wall body to nest.

By adopting the ventilation check valve, the reverse flow water partition is arranged in the valve body, and when raining or condensed water exists, the partition blocks the reverse flow water and does not pour the water into the ventilation pipe; a grid is arranged at an outlet of the air outlet end, and outdoor flying birds and the like cannot enter the wall body through the grid; the check sheet limit is arranged inside the valve body, and when outdoor wind pressure is large and wind is blown indoors, the check sheet limit can block the check sheet from rotating inwards, and outdoor air is prevented from entering indoors.

In this specification, the utility model has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the utility model. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. The air exchange and ventilation check valve is characterized by comprising an air outlet end, an air inlet end and a reverse flow water partition connected with the air outlet end and the air inlet end, wherein the lower surface of the air inlet end is higher than the lower surface of the air outlet end, so that the reverse flow water partition has a gradient of 30-60 degrees.

2. The ventilation and ventilation check valve of claim 1, wherein the lower surface of the air inlet end is 5-15 mm higher than the lower surface of the air outlet end.

3. The ventilation check valve of claim 1, wherein a grille is disposed at the outlet of the outlet end.

4. A ventilation/ventilation check valve as defined in claim 3 wherein said grid is a 10mm by 10mm perforated grid.

5. The ventilation and ventilation check valve of claim 1, wherein a movable check plate and a limit are arranged inside the air inlet end, the movable check plate is rotatable relative to the main body of the air inlet end, and the limit is arranged on the inner wall of the air inlet end corresponding to the movable check plate.

6. A ventilation/ventilation check valve as defined in claim 1, wherein said check valve is provided with a mounting plate having a mounting hole.