A vortex air pump with air filtering non-return structure

Abstract

A vortex air pump with air filtering check valve structure, including air pump main body, air pump main body is provided with suction pipe and exhaust pipe, exhaust pipe outlet is connected with air filter device, air filter device includes base, filter element and cover, the sidewall of base is provided with air inlet and air outlet, air inlet is connected with exhaust pipe, base is provided with mounting seat, mounting seat is provided with air interface, air interface is communicated with air inlet, mounting seat is provided with filter element, the lower part of filter element is provided with plug-in pipe, plug-in pipe is connected with air interface, plug-in pipe is provided with check valve assembly to prevent air backflow, check valve assembly is limited with air interface, the upper part of base is provided with cover, cover and base form filter cavity. Air filter device is provided with check ball, which can prevent air and dust backflow, improve the filtering effect of filter element on impurities, prevent the accumulation of a large number of impurities in the air pump main body due to backflow, thereby improving the working efficiency of air pump.

Description

Technical Field

[0001] This utility model relates to a vortex air pump, and in particular to a vortex air pump with an air filter check structure, belonging to the field of air pump technology. Background Technology

[0002] The impeller of a vortex air pump consists of several blades, similar to the impeller of a large gas turbine. Air in the center of the impeller blades is propelled towards the edge of the impeller by centrifugal force, where it enters the pump's annular cavity and recirculates from the starting point of the blades in the same manner. The circulating airflow generated by the impeller's rotation leaves the pump with extremely high energy for use.

[0003] Vortex air pumps are frequently used in environments with high levels of dust and pollutants. During operation, dust and other impurities are drawn into the vortex air pump and then blown out. To reduce the amount of impurities entering the vortex air pump or to reduce the impurity content in the blown-out air, filters are typically installed at the suction or exhaust pipe of the vortex air pump to filter impurities. For example, CN220505447U discloses a vortex air pump for impurity filtration, which includes a pump body with an inlet port and an outlet port. A filter assembly for filtering impurities is located at the inlet port of the pump body. The filter assembly consists of a retaining tube fixedly connected to the inlet port and a filter head that engages with the retaining tube. An opening groove is provided on the peripheral wall of the retaining tube for the filter head to engage with, and an opening ring is provided on one side of the opening groove. A guide ring protrudes from the side wall of the filter head for engaging with the opening groove, and a U-shaped groove is provided on one side of the guide ring for engaging with the opening ring. However, the drawback of this structure is that the filter assembly does not have a backflow prevention mechanism for air and impurities. When the equipment stops working, air backflow can easily occur, causing impurities in the filter assembly to flow back in, affecting the filtration effect of the filter assembly. In particular, when the vortex air pump is used in equipment such as blowers and hair dryers, the backflow of impurities can easily lead to the accumulation of a large amount of impurities in the air pump, thereby affecting the working efficiency of the air pump. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a vortex air pump with an air filter check structure that prevents backflow of air and dust, has a good filter element for filtering impurities, and improves the working efficiency of the air pump.

[0005] The technical solution of this utility model for a vortex air pump with an air filter check structure is as follows: It includes an air pump body, on which an air intake pipe and an exhaust pipe are provided. An air filter device is connected to the outlet of the exhaust pipe. The air filter device includes a base, a filter element, and a cover. An air inlet and an air outlet are provided on the side wall of the base. The air inlet is connected to the exhaust pipe. A mounting seat is provided in the base, and a ventilation interface is provided in the mounting seat, communicating with the air inlet. The filter element is provided on the mounting seat, and a connecting pipe is provided at the lower part of the filter element. The connecting pipe is plugged into and connected to the ventilation interface. A check component to prevent air backflow is provided in the connecting pipe, and the check component is matched with the ventilation interface. A cover is provided on the upper part of the base, and a filter chamber is formed between the cover and the base.

[0006] Furthermore, the check valve assembly is a check valve ball, and the lower part of the check valve ball is matched with the upper opening of the venting interface.

[0007] Furthermore, the inside of the check ball is a hollow cavity.

[0008] Furthermore, a limiting step is provided at the upper opening of the ventilation interface, and the outer diameter S1 of the check ball is larger than the inner diameter S2 of the limiting step.

[0009] Furthermore, a retaining pipe is installed between the exhaust pipe and the air inlet.

[0010] The beneficial effects of this utility model of a vortex air pump with an air filter check valve structure are:

[0011] 1. An air filter device is installed at the exhaust pipe outlet of the air pump body to filter impurities in the air and reduce the discharge of impurities.

[0012] Second, installing a check ball in the air filter device can prevent backflow of air and dust, improve the filter element's filtration effect on impurities, and prevent a large amount of impurities from accumulating inside the air pump body due to backflow, thereby improving the working efficiency of the air pump. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of a vortex air pump with an air filter check structure according to the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of a vortex air pump with an air filter check structure according to this utility model.

[0015] Figure 3 This is a three-dimensional schematic diagram of the disassembled state of an air filtration device.

[0016] In the diagram, 1. Air pump body; 11. Inhalation pipe; 12. Exhaust pipe; 2. Base; 21. Air inlet; 22. Air outlet; 23. Mounting base; 24. Vent interface; 25. Limiting step; 3. Filter element; 31. Connecting pipe; 32. Check ball; 33. Cavity; 4. Cover; 41. Filter chamber; 5. Connecting pipe. Detailed Implementation

[0017] This utility model relates to a vortex air pump with an air filter check structure, such as Figure 1 — Figure 3 The device includes an air pump body 1, on which an air intake pipe 11 and an exhaust pipe 12 are provided. An air filter device is connected to the outlet of the exhaust pipe 12. The air filter device includes a base 2, a filter element 3, and a cover 4. An air inlet 21 and an air outlet 22 are provided on the side wall of the base 2. The air inlet 21 is connected to the exhaust pipe 12. A mounting base 23 is provided in the base 2. An air vent 24 is provided in the mounting base 23 and communicates with the air inlet 21. The filter element 3 is provided on the mounting base 23. A connecting pipe 31 is provided at the lower part of the filter element 3. The connecting pipe 31 is plugged into the air vent 24. A check valve component is provided in the connecting pipe 31 to prevent air backflow. The check valve component is limited and cooperates with the air vent 24. A cover 4 is provided on the upper part of the base 2. A filter chamber 41 is formed between the cover 4 and the base 2.

[0018] Furthermore, the check valve assembly is a check valve ball 32, the lower part of which is matched with the upper opening of the venting port 24 for limiting.

[0019] Furthermore, the check ball 32 has a hollow cavity 33 inside. The hollow cavity structure of the check ball 32 reduces its weight and makes it easier to blow the check ball 32 upward when air enters through the air inlet 21 of the air filter, thus opening the vent 24.

[0020] Furthermore, a limiting step 25 is provided at the upper opening of the vent 24, and the outer diameter S1 of the check ball 32 is larger than the inner diameter S2 of the limiting step 25. The limiting step 25 can limit the check ball 32 downward. If backflow of air occurs, the limiting step 25 and the check ball 32 will make a limiting and sealing contact, preventing air from returning to the air pump body 1 through the check ball 32 and the vent 24.

[0021] Furthermore, a retaining pipe 5 is provided between the exhaust pipe 12 and the air inlet 21.

[0022] This utility model discloses a vortex air pump with an air filter check valve structure. In use, a motor drives the impeller in the air pump body 1 to rotate. The impeller drives air to enter the air pump body 1 through the intake pipe 11 and then outputs it through the exhaust pipe 12. The exhaust pipe 12 is connected to the air inlet 21 of the air filter device via a clamping pipe 5. Air is delivered through the air inlet 21 to the mounting base 23 located below the vent interface 24. Under the action of air thrust, the check valve ball 32 on the vent interface 24 moves upward, opening the vent interface 24. At this time, air enters the filter element 3 through the vent interface 24, and impurities in the air are filtered by the filter element 3. The filtered air... Air enters the filter chamber 41 formed between the housing 4 and the base 2, and finally exits from the air outlet 22 on the other side of the base 2. When the air pump stops working, the check ball 32 falls under the action of gravity. The lower part of the check ball 32 is in a limited and sealed contact with the limiting step 25 at the upper opening of the vent 24. If backflow of air occurs, the air will return to the filter element 3 through the air outlet 22 and the filter chamber 41. Because the check ball 32 is limited by the limiting step 25 at the upper opening of the vent 24, the check ball 32 and the vent 24 always maintain a sealed fit, and the air cannot flow back to the air inlet 21 and the air pump body 1, thereby preventing backflow of air to the air pump body 1.

[0023] The above specific embodiments are used to explain and illustrate the present utility model, and are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made to the present utility model within the spirit and protection scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. A vortex air pump with an air filter check structure, comprising an air pump body (1), wherein an air intake pipe (11) and an exhaust pipe (12) are provided on the air pump body (1), characterized in that: An air filter is connected to the outlet of the exhaust pipe (12). The air filter includes a base (2), a filter element (3), and a cover (4). An air inlet (21) and an air outlet (22) are opened on the side wall of the base (2). The air inlet (21) is connected to the exhaust pipe (12). A mounting seat (23) is provided in the base (2). A ventilation interface (24) is opened in the mounting seat (23). The ventilation interface (24) is connected to the air inlet (21). A filter element (3) is provided on the mounting seat (23). A plug pipe (31) is provided at the lower part of the filter element (3). The plug pipe (31) is plugged into the ventilation interface (24). A check valve component to prevent air backflow is provided in the plug pipe (31). The check valve component is limited and cooperates with the ventilation interface (24). A cover (4) is provided on the upper part of the base (2). A filter chamber (41) is formed between the cover (4) and the base (2).

2. A vortex air pump with an air filter check structure as described in claim 1, characterized in that: The aforementioned check valve assembly is a check valve ball (32), the lower part of which is matched with the upper opening of the venting port (24).

3. A vortex air pump with an air filter check structure as described in claim 2, characterized in that: The inside of the check ball (32) is a cavity (33).

4. A vortex air pump with an air filter check structure as described in claim 2, characterized in that: The ventilation port (24) is provided with a limiting step (25) at the top, and the outer diameter S1 of the check ball (32) is greater than the inner diameter S2 of the limiting step (25).

5. A vortex air pump with an air filter check structure as described in claim 1, characterized in that: A retaining pipe (5) is provided between the exhaust pipe (12) and the air inlet (21).

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