Pipeline port cap for fresh air system

Abstract

The pipeline port cap for the fresh air system comprises an outer cylinder, a gas gathering plate is fixedly connected in the outer cylinder, a first through hole is formed in the gas gathering plate, an elastic silica gel blocking plate is fixedly connected to the end, away from the gas gathering plate, of the outer cylinder, a plurality of second through holes are formed in the elastic silica gel blocking plate, and a fixing ring is fixedly connected to the outer cylinder. The fixing ring is located on one side of the elastic silica gel blocking plate, a plurality of flow guide plates are fixedly connected into the fixing ring, a gap is formed between every two adjacent flow guide plates, the flow guide plates are obliquely arranged, and a clamping plate is fixedly connected outside the outer cylinder. According to the utility model, airflow can normally pass through conveniently, and passing of airflow can be reduced under the condition of airflow backflow, so that the condition that the work of a fresh air system is influenced by airflow backflow is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline airflow backflow prevention, in particular to a pipeline port cap for a fresh air system. Background Art

[0002] A fresh air system is an air purification device that can achieve indoor and outdoor air circulation. It introduces fresh air from the outside into the room through external vents or fans, and can continuously provide fresh air to the room, meet people's demand for oxygen, and reduce various health problems caused by hypoxia. It can effectively discharge various bacteria, viruses, carbon dioxide and other polluted air in the indoor air to the outside, reduce indoor pollution, and maintain the health of the indoor environment. A fresh air system usually has an air inlet duct and an air outlet duct, which introduces fresh air from the outside into the room and discharges polluted air from the room to the outside. However, gas backflow is prone to occur at the port of the duct, which will affect the discharge of airflow. For example, when the outlet duct discharges polluted air, there is a problem of gas backflow, which will cause the polluted air to reflux, affecting the working effect of the fresh air system. To this end, a duct port cap for a fresh air system is proposed to solve the above problem. Utility Model Content

[0003] The purpose of the utility model is to provide a pipe port cap for a fresh air system to solve the problems existing in the above-mentioned prior art and reduce the impact of gas backflow on the fresh air system.

[0004] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a pipe port cap for a fresh air system, comprising:

[0005] An outer tube, wherein an air gathering plate is fixedly connected to the inner side of the outer tube, a first through hole is provided on the air gathering plate, an elastic silicone blocking plate is fixedly connected to the end of the outer tube away from the air gathering plate, a plurality of second through holes are provided on the elastic silicone blocking plate, a fixing ring is fixedly connected to the outer tube, the fixing ring is located on one side of the elastic silicone blocking plate, a plurality of guide plates are fixedly connected to the inner side of the fixing ring, a gap is provided between two adjacent guide plates, the guide plates are tilted, and a clamping plate is fixedly connected to the outside of the outer tube.

[0006] Preferably, the elastic silicone blocking plate includes a first-level inner cylinder, the first-level inner cylinder is fixedly connected to the outer cylinder, an annular plate is fixedly connected to the first-level inner cylinder, the first-level inner cylinder is fixedly connected to the outer ring of the annular plate, the inner ring of the annular plate is fixedly connected to a second-level inner cylinder, the second-level inner cylinder is fixedly connected to a circular plate at one end away from the annular plate, and the second through hole is opened on the annular plate.

[0007] Preferably, the first-level inner cylinder and the second-level inner cylinder are both funnel-shaped.

[0008] Preferably, the gas gathering plate is funnel-shaped and faces the circular plate.

[0009] The utility model discloses the following technical effects: when the device is used, it is installed on the port of the pipe. For example, the device is installed at the air inlet of the pipe for discharging dirty air. One side of the fixing ring should face the outside of the pipe. The clamping plate facilitates the installation of the device in the pipe. When the turbid air in the room enters the air outlet pipe, the air flow will blow the elastic silicone blocking plate, which will be pushed open. The air flow will be discharged through the second through hole and enter the pipe through the first through hole. The air collecting plate is made of hard material. When there is air backflow, the backflowing air will pass through the air collecting plate and impact the elastic silicone blocking plate through the first through hole. At this time, the elastic silicone blocking plate will shrink under the impact of the air flow, causing the second through hole to shrink, thereby reducing the passage of air flow and reducing the situation of air backflow. The guide plate facilitates the entry of air flow and also reduces the entry of foreign matter. The utility model facilitates the normal passage of air flow. When there is air backflow, it can reduce the passage of air flow, thereby reducing the situation where the air backflow affects the operation of the fresh air system. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 This is a schematic diagram of the structure of the pipe port cap for the fresh air system of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the gas gathering plate of the utility model;

[0013] Figure 3 This is a schematic diagram of the normal use state of the utility model;

[0014] Figure 4 This is a schematic diagram of the airflow backflow state of the utility model;

[0015] Among them, 1. outer cylinder; 2. gas gathering plate; 3. first through hole; 4. elastic silicone blocking plate; 5. second through hole; 6. fixing ring; 7. guide plate; 8. clamping plate; 9. first-level inner cylinder; 10. annular plate; 11. second-level inner cylinder; 12. circular plate. DETAILED DESCRIPTION

[0016] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Reference Figure 1-4 The utility model provides a pipe port cap for a fresh air system, comprising:

[0019] The outer tube 1 has an air gathering plate 2 fixedly connected to the inner side of the outer tube 1, and a first through hole 3 is provided on the air gathering plate 2. The outer tube 1 has an elastic silicone blocking plate 4 fixedly connected to one end away from the air gathering plate 2, and a plurality of second through holes 5 are provided on the elastic silicone blocking plate 4. The outer tube 1 has a fixed ring 6 fixedly connected to the outer tube 1, and the fixed ring 6 is located on one side of the elastic silicone blocking plate 4. A plurality of guide plates 7 are fixedly connected to the inner side of the fixed ring 6, and there is a gap between two adjacent guide plates 7. The guide plates 7 are tilted. The outer tube 1 has a clamping plate 8 fixedly connected to the outside.

[0020] When the device is in use, it is installed on the port of the pipe. In this embodiment, the device is installed at the air inlet of the pipe that discharges dirty air for illustration. One side of the fixing ring 6 should face the outside of the pipe. The clamping plate 8 facilitates the installation of the device in the pipe. When the turbid air flow in the room enters the air outlet pipe, the air flow will blow the elastic silicone blocking plate 4, and the elastic silicone blocking plate 4 will be flushed open. The air flow will be discharged through the second through hole 5 and enter the pipe through the first through hole 3. The air gathering plate 2 is made of hard material. When there is a backflow of air flow, the backflowing air flow will pass through the air gathering plate 2 and impact the elastic silicone blocking plate 4 through the first through hole 3. At this time, the elastic silicone blocking plate 4 will be impacted by the air flow and shrink, causing the second through hole 5 to shrink, thereby reducing the passage of air flow and reducing the backflow of air flow. The guide plate 7 facilitates the entry of air flow and also reduces the entry of foreign matter.

[0021] To further optimize the solution, the elastic silicone blocking plate 4 includes a first-level inner cylinder 9, which is fixedly connected to the outer cylinder 1, and a ring plate 10 is fixedly connected to the first-level inner cylinder 9. The first-level inner cylinder 9 is fixedly connected to the outer ring of the ring plate 10, and the inner ring of the ring plate 10 is fixedly connected to the second-level inner cylinder 11. The second end of the second-level inner cylinder 11 away from the ring plate 10 is fixedly connected to the circular plate 12, and the second through hole 5 is opened on the ring plate 10.

[0022] The circular plate 12 is located on the side close to the air gathering plate 2. When the airflow flows back, the airflow through the first through hole 3 will impact the circular plate 12, thereby causing pressure on the secondary inner cylinder 11 and the primary inner cylinder 9, causing the annular plate 10 and the primary inner cylinder 9 to be compressed and deformed. When the annular plate 10 and the primary inner cylinder 9 are compressed, the aperture of the second through hole 5 will become smaller due to compression, thereby reducing the passage of the backflow airflow; under normal use, the airflow enters the outer cylinder 1 through the guide plate 7, and the airflow will impact the circular plate 12. Since there are no holes on the secondary inner cylinder 11 and the circular plate 12, the primary inner cylinder 9 will be stretched, so that the second through hole 5 on the annular plate 10 is in a normal state, and the airflow can pass through easily.

[0023] According to a further optimized solution, both the first-stage inner tube 9 and the second-stage inner tube 11 are funnel-shaped.

[0024] The funnel-shaped first-level inner cylinder 9 is convenient for compression.

[0025] According to a further optimized solution, the gas gathering plate 2 is funnel-shaped and faces the circular plate 12 .

[0026] The funnel-shaped air gathering plate 2 is convenient for concentrating the airflow, so that the airflow during backflow has a stronger impact force and blows the circular plate 12 more forcefully.

[0027] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0028] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A pipe port cap for a fresh air system, characterized in that: include: An outer cylinder (1), wherein an air gathering plate (2) is fixedly connected inside the outer cylinder (1), and a first through hole (3) is provided on the air gathering plate (2); an elastic silicone blocking plate (4) is fixedly connected to one end of the outer cylinder (1) away from the air gathering plate (2), and a plurality of second through holes (5) are provided on the elastic silicone blocking plate (4); a fixing ring (6) is fixedly connected to the outer cylinder (1), and the fixing ring (6) is located on one side of the elastic silicone blocking plate (4); a plurality of guide plates (7) are fixedly connected inside the fixing ring (6), and a gap is provided between two adjacent guide plates (7); the guide plates (7) are inclinedly arranged; and a clamping plate (8) is fixedly connected outside the outer cylinder (1).

2. A pipe port cap for a fresh air system according to claim 1, characterized in that: The elastic silicone blocking plate (4) comprises a primary inner cylinder (9), the primary inner cylinder (9) is fixedly connected inside the outer cylinder (1), an annular plate (10) is fixedly connected to the primary inner cylinder (9), the primary inner cylinder (9) is fixedly connected to the outer ring of the annular plate (10), the inner ring of the annular plate (10) is fixedly connected to a secondary inner cylinder (11), the secondary inner cylinder (11) is fixedly connected to a circular plate (12) at one end away from the annular plate (10), and the second through hole (5) is provided on the annular plate (10).

3. A pipe port cap for a fresh air system according to claim 2, characterized in that: The first-stage inner cylinder (9) and the second-stage inner cylinder (11) are both funnel-shaped.

4. The pipe port cap for a fresh air system according to claim 2, characterized in that: The gas gathering plate (2) is funnel-shaped, and the gas gathering plate (2) faces the circular plate (12).

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