A pump

Abstract

The utility model discloses an air extraction pump, include: air extraction cavity, the air extraction cavity is built -in at least one fan blade, be equipped with the entrance and the export of different side on the air extraction cavity, drive cavity, install at least one drive motor in drive cavity, and the output shaft of drive motor reaches the air extraction cavity and is connected the fan blade, the air -guiding surface is configured in the air extraction cavity, and the drive motor controls the fan blade rotation makes the airflow from the entrance and exports from the export after passing the air -guiding surface. The utility model discloses through drive motor drives the fan blade rotation and realizes the air extraction function to can extract the air in the compression bag, and the air -guiding surface of configuration can increase the air -guiding effect, makes the air -guiding more smooth, and the air extraction effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of air pump technology, and specifically relates to an air pump. Background Technology

[0002] In current home storage practices, compression bags are often used to effectively prevent clothing from oxidizing and becoming damp, and to reduce storage volume. However, manual squeezing is laborious and the suction effect is not good. Existing air pumps are bulky and do not pump air smoothly. Therefore, it is very important to obtain an air pump that overcomes the above-mentioned defects. Utility Model Content

[0003] To solve at least one of the above-mentioned technical problems, this utility model provides an air pump, comprising: An air extraction chamber is provided inside the air extraction chamber, and an inlet is provided in the middle of the end face of the air extraction chamber and an outlet is provided on the side. A drive chamber, in which a drive motor is installed, the output shaft of which extends to the air extraction chamber and is connected to the fan blade; The outer shell includes a main shell and a top shell assembled at one end of the main shell. The air extraction chamber is located between the top shell and the main shell. The driving chamber is located inside the main shell. An insertion wall protrudes from the top shell and abuts against the main shell. An opening is provided on the insertion wall.

[0004] The drive motor drives the fan blades to rotate in either the forward or reverse direction, drawing airflow in from the inlet and expelling it from the outlet, forming a guide surface inside the insert wall. The thickness of the outer end of the fan blades is less than the thickness of the inner end.

[0005] Through the above technical solution, this utility model achieves the air extraction function by driving the fan blade to rotate through the drive motor, which can extract the air from the compression bag. The configured air guide surface can increase the air guiding effect, making the air guiding smoother and the air extraction effect better.

[0006] The main body shell is provided with a limiting protrusion that mates with the insertion wall.

[0007] The inlet is located on the top shell of the exhaust chamber, and an opening is formed on the air guide surface to communicate with the outlet. A connecting wall is provided on the main shell, located outside the insertion wall, and the outlet is formed on the connecting wall. The outlet is located at the opening in the wall.

[0008] With the above technical solution, the outlet of this utility model is located at the wall opening, and the air guide surface can directly guide the airflow to the outlet, increasing the smoothness of air extraction.

[0009] It also includes multiple connecting sleeves of different sizes. The outer wall of the suction chamber located at the inlet has an installation protrusion. Several inlets are located within the range of the installation protrusion, and one connecting sleeve is selected and fitted onto the installation protrusion. The outer wall of the suction chamber outside the installation protrusion has a protrusion, and an installation groove for inserting the connecting sleeve is formed between the installation protrusions; the openings of the connecting sleeves are of different sizes.

[0010] The above technical solution allows for the use of different opening diameters to accommodate compression bags with various interface sizes.

[0011] The fan blade includes a mounting post connected to a drive motor and several blades fixedly mounted around the mounting post. The thickness of the blades decreases from the mounting post outwards. The blades are located on the inlet side, and from the mounting post outwards, they are sequentially provided with an inclined surface and a flat surface facing the inlet side. An arc surface is provided outside the flat surface. A switch is also included, which is located on opposite sides of the housing from the inlet.

[0012] Through the above technical solution, the thickness of the fan blade of this utility model is gradually reduced, resulting in better air extraction effect.

[0013] The direction of the blade is consistent with the direction of the generatrix of the mounting column. Due to the design of the blade shape of the present invention, the blade can perform air extraction operation, whether rotating forward or backward. Compared with traditional spiral fan blades, it can be used with a wider range of motor models.

[0014] The drive cavity also contains a drive circuit board and a battery, and a charging port for supplying power to the battery is provided on the main body shell.

[0015] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, smooth air extraction, and is compatible with compression bags of various diameters. Furthermore, due to the above-mentioned design of the fan blades, it allows for a wide range of choices of drive motors to be used with it. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a cross-sectional perspective view of the present invention; Figure 3 This is a schematic diagram of a cross-section; Figure 4 A 3D view of the wind turbine blades; Figure 5 This is a top view of the wind turbine blade of this utility model; Figure label: 1. Exhaust chamber; 2. Fan blade; 3. Inlet; 5. Outlet; 6. Drive chamber; 7. Drive motor; 8. Main body shell; 9. Top shell; 10. At least part of the surface of the main body shell; 11. At least part of the inner surface of the top shell; 12. Insertion wall; 13. Air guide surface; 14. Limiting protrusion; 15. Connecting wall; 16. Wall opening; 17. Connecting sleeve; 18. Mounting protrusion; 19. Protrusion; 20. Mounting groove; 21. Mounting column; 22. Blade; 23. Inclined surface; 24. Plane; 25. Arc surface; 26. Drive circuit board; 27. Battery; 28. Charging port; 29. ​​Switch; 30. Opening; The thickness of the outer end of H1; the thickness of the inner end of H2. Detailed Implementation

[0017] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.

[0018] Referring to the accompanying drawings, the present invention adopts the following technical solution: an air pump, comprising: The air extraction chamber 1 is provided with a fan blade 2 inside the air extraction chamber 1. The air extraction chamber 1 has an inlet 3 in the middle of its end face and an outlet 5 on its side. A drive chamber 6 is provided, in which a drive motor 7 is installed. The output shaft of the drive motor 7 extends to the air extraction chamber 1 and is connected to the fan blade 2. The outer shell includes a main shell 8 and a top shell 9 assembled at one end of the main shell 8. The air extraction chamber 1 is located between the top shell 9 and the main shell 8. The driving chamber 6 is located inside the main shell 8. An insertion wall 12 protrudes from the top shell 9 and abuts against the main shell 8. An opening 16 is provided on the insertion wall 12.

[0019] The drive motor 7 drives the fan blade 2 to rotate in either the forward or reverse direction, drawing airflow in from the inlet 3 and then discharging it from the outlet 5. An air guide surface 13 is formed inside the insert wall.

[0020] The thickness H1 at the outer end of the blade 22 of the wind turbine blade 2 is less than the thickness H2 at the inner end.

[0021] Through the above technical solution, this utility model drives the fan blade 2 to rotate by the drive motor 7 to achieve the air extraction function, which can extract the air in the compression bag. The configured air guide surface 13 can increase the air guiding effect, making the air guiding smoother and the air extraction effect better.

[0022] The main body shell 8 is provided with a limiting protrusion 14 that cooperates with the insertion wall 12. The insertion wall 12 forms the side wall of the air extraction chamber 1, and the top surface and bottom surface of the air extraction chamber 1 are respectively a portion of the inner surface 11 of the top shell and at least a portion of the surface 10 of the main body shell.

[0023] The main shell and the top shell can be fixedly connected by plugging, snap-fit, or other fixed connection methods.

[0024] The inlet 3 is located on the top shell 9 of the top surface of the exhaust chamber 1, and the air guide surface 13 has a wall opening 16 to communicate with the outlet 5. The main shell 8 has a connecting wall 15 located outside the insertion wall 12, and the outlet 5 is located on the connecting wall 15. The outlet 5 is located at the wall opening 16.

[0025] With the above technical solution, the outlet 5 of this utility model is located at the wall opening 16, and the air guide surface 13 can directly guide the airflow to the outlet 5, increasing the smoothness of air extraction.

[0026] It also includes multiple connecting sleeves 17 of different sizes. An installation protrusion 18 is provided on the outer wall of the suction chamber 1 located at the inlet 3. Several inlets 3 are located within the range of the installation protrusion 18, and one connecting sleeve 17 is selected and fitted onto the installation protrusion 18. A protrusion 19 is provided on the outer wall of the suction chamber 1 outside the installation protrusion 18, and an installation groove 20 is formed between the installation protrusion 18 and the protrusion 19 for the insertion of the connecting sleeve 17. The opening 30 of the connecting sleeve 17 has a different diameter. The connecting sleeve 17 can be made of silicone, rubber, or other materials with a certain degree of elasticity, and is used to connect to the exhaust port of the vacuum compression belt.

[0027] The above technical solution allows for the use of different opening diameters to accommodate compression bags with various interface sizes.

[0028] The fan blade 2 includes a mounting post 21 connected to the drive motor 7 and several blades 22 fixedly mounted on the periphery of the mounting post 21. In this embodiment, the thickness of the blades 22 gradually decreases from the mounting post 21 outwards. The blades 22 are located on one side of the inlet 3, and from the mounting post 21 outwards, there are inclined surfaces 23 and planes 24 that slope towards the inlet 3. An arc surface 25 is provided outside the plane 24.

[0029] Through the above technical solution, the thickness of the fan blade 2 of this utility model gradually becomes thinner, resulting in better air extraction effect.

[0030] The direction of the blade is consistent with the direction of the generatrix of the mounting column, that is, the plane direction of the blade is consistent with the direction of the output shaft of the motor. Due to the setting of the blade shape of the present invention, the blade can realize the air extraction operation, whether it rotates forward or backward. Compared with the traditional spiral fan blade, it is compatible with a wider range of motor models.

[0031] The drive cavity 6 also houses a drive circuit board 26 and a battery 27, and a charging port 28 for supplying power to the battery 27 is provided on the main shell 8. It also includes a switch 29, which is located on opposite sides of the shell, separate from the inlet 3.

[0032] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, smooth air extraction, and is compatible with compression bags of various diameters. Furthermore, due to the above-mentioned design of the fan blades, it allows for a wide range of choices of drive motors to be used with it.

[0033] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An air pump, characterized in that: include: An air extraction chamber (1) is provided with a fan blade (2) inside the air extraction chamber (1). The air extraction chamber (1) has an inlet (3) in the middle of its end face and an outlet (5) on its side. A drive chamber (6) is provided, in which a drive motor (7) is installed. The output shaft of the drive motor (7) extends to the air extraction chamber (1) and is connected to the fan blade (2). The outer shell includes a main shell (8) and a top shell (9) assembled at one end of the main shell (8). The air extraction chamber (1) is located between the top shell (9) and the main shell (8). The driving chamber (6) is located inside the main shell (8). An insertion wall (12) protrudes from the top shell (9) and abuts against the main shell (8). A wall opening (16) is provided on the insertion wall (12). The drive motor (7) drives the fan blade (2) to rotate in the forward or reverse direction, drawing airflow in from the inlet (3) and then discharging it from the outlet (5); The thickness (H1) of the outer end of the blade (22) of the wind vane (2) is less than the thickness (H2) of the inner end.

2. The air pump according to claim 1, characterized in that: The fan blade (2) includes a mounting post (21) connected to a drive motor (7) and a plurality of blades (22) arranged around the mounting post (21), the thickness of the blades (22) decreasing from the mounting post (21) to the outside.

3. The air pump according to claim 2, characterized in that: The blade (22) is located on one side of the inlet (3), and from the mounting post (21) outwards, there are inclined surfaces (23) and planes (24) that are inclined towards the side of the inlet (3).

4. The air pump according to claim 2, characterized in that: The direction of the blade (22) is consistent with the direction of the generatrix of the mounting post (21).

5. The air pump according to claim 1, characterized in that: The main body shell (8) is provided with a connecting wall (15), which is located outside the insertion wall (12), and the outlet (5) is opened on the connecting wall (15).

6. The air pump according to claim 5, characterized in that: The outlet (5) is located at the opening (16) in the wall.

7. The air pump according to claim 1, characterized in that: It also includes multiple connecting sleeves (17) of different sizes. The outer wall of the air extraction chamber (1) located at the inlet (3) is provided with an installation protrusion (18). Several inlets (3) are located within the range of the installation protrusion (18). One of the connecting sleeves (17) is selected and fitted onto the installation protrusion (18).

8. The air pump according to claim 7, characterized in that: A protrusion (19) is provided on the outer wall of the air extraction chamber (1) outside the mounting protrusion (18), and a mounting groove (20) for inserting the connecting sleeve (17) is formed between the mounting protrusion (18) and the protrusion (19). And / or, the opening (30) of the connecting sleeve (17) is of different sizes.

9. The air pump according to claim 1, characterized in that: It also includes a switch (29), which is located on the two sides of the housing, and the inlet (3) is located on the other side of the housing.

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