Air pump valve plate and air pump

Abstract

The utility model provides a kind of air pump valve piece, the air pump valve piece includes first part and second part, the first part is spaced to the outside of the second part, the first part includes fixed part and the free part of connecting the fixed part, the free part is connected the second part by connecting portion, the other side of the second part relative to the connecting portion is free side.The utility model air pump can improve the service life of valve piece in repeated inflation process.

Description

Technical Field

[0001] This utility model relates to the field of air pumps, and in particular to an air pump valve plate and an air pump. Background Technology

[0002] An air pump is a commonly used inflation device. To reduce gas backflow, a valve is installed at the air outlet of the air pump.

[0003] CN220522759U discloses an air pump for improving the sealing performance of a valve seat plate, which includes a valve seat plate 1 and a valve plate 2. The valve seat plate 1 has a mounting hole 11 and several vent holes 12. The mounting hole 11 and the vent holes 12 both penetrate the top and bottom surfaces of the valve seat plate 1. A mounting handle 21 is protruding from the center of the bottom surface of the valve plate 2. The mounting handle 21 extends into and is installed in the mounting hole 11. The valve plate 2 covers each vent hole 12 in the top view projection direction. The valve plate 2 and the mounting handle 21 form a mushroom-shaped sealing member made of elastic material. The mounting handle 21 includes a snap-fit ​​part 211 and an inlet part 212.

[0004] During inflation, gas flows through the vent holes 12 and then opens the valve plate 2 to allow air to pass through. After air passage stops, the valve plate 2 covers all the vent holes 12 again. This type of valve plate 2 is prone to repeated bending during frequent inflation, which can lead to loss of elasticity and a short lifespan. Utility Model Content

[0005] Therefore, it is necessary to provide an air pump valve plate and an air pump, which can improve the life of the valve plate during repeated inflation.

[0006] This utility model provides an air pump valve plate, which includes a first part and a second part. The first part is spaced outside the second part. The first part includes a fixed part and a free part connected to the fixed part. The free part is connected to the second part through a connecting part. The other side of the second part relative to the connecting part is the free side.

[0007] Furthermore, the first part includes the free parts located on the left and right sides of the connecting part.

[0008] Furthermore, the first part is annular, and the second part is a circle concentric with the first part.

[0009] Furthermore, the two free parts are symmetrical about the left and right sides relative to the connecting part.

[0010] Furthermore, the fixing part is provided with fixing holes.

[0011] Furthermore, the first part and the second part are located on the same plane.

[0012] This utility model provides an air pump, which includes a piston assembly, a cylinder, and an air pump valve plate. The cylinder is provided with an air port, and the fixing part is fixed to the cylinder. In the non-inflated state, the second part is attached to the end face of the air port to close the air port.

[0013] Furthermore, the air pump also includes an end cap that presses the fixing part against the cylinder body.

[0014] Furthermore, the piston assembly includes a motor, a gear, a piston, and a piston rod. The piston rod is eccentrically connected to the gear, and the piston rod is connected to the piston. The piston is disposed in the cylinder body, and the motor is used to drive the gear to rotate.

[0015] Furthermore, the motor is a brushless motor.

[0016] The present invention has the following beneficial effects: the air pump valve plate can be attached to the end face of the air port of the air pump to seal the air port when it is not inflated. When inflated, the gas comes out of the air port and pushes open the second part. The second part leaves its original position and drives the connecting part and the free part of the first part to spring open together. The free part can provide a buffer for the second part, avoiding excessive force at the connecting part and causing its elasticity to fail, thereby improving the service life of the air pump valve plate. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of an air pump according to a specific embodiment of the present invention.

[0018] Figure 2 This is a second schematic diagram of the structure of an air pump according to a specific embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of an air pump valve plate according to a specific embodiment of the present invention. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. It is understood that the accompanying drawings are provided for reference and illustration only and are not intended to limit the present utility model. The connection relationships shown in the drawings are only for clear description and do not limit the connection method.

[0021] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0022] It should also be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Please see Figure 1-3 As shown in the figure, a specific embodiment of the present invention provides an air pump, which includes a piston assembly 10, a cylinder 20, and an air pump valve plate 30.

[0024] The piston assembly 10 includes a motor 11, a gear 12, a piston 13, and a piston rod 14. The piston rod 14 is eccentrically connected to the gear 12 and connected to the piston 13. The piston 13 is disposed within the cylinder 20. The motor 11 drives the gear 12 to rotate, which in turn drives the piston rod 14 to rotate eccentrically, causing the piston 13 to reciprocate along the cylinder 20, thereby achieving inflation. Preferably, the motor 11 is a brushless motor, which reduces product size and improves efficiency.

[0025] The cylinder 20 is provided with an air port 21. After the piston 13 reciprocates along the cylinder 20 to generate airflow, the gas will be discharged from the cylinder 20 through the air port 21.

[0026] The air pump valve plate 30 is located at the air port 21. Specifically, the air pump valve plate 30 includes a first part 31 and a second part 32. The first part 31 and the second part 32 are located on the same plane.

[0027] The first portion 31 is spaced outside the second portion 32. The first portion 31 includes a fixed portion 311 and a free portion 312 connected to the fixed portion 311. The fixed portion 311 is the fixed portion, and the free portion 312 is the movable portion. The free portion 312 is connected to the second portion 32 via a connecting portion 33. The side of the second portion 32 opposite to the connecting portion 33 is the free side 321.

[0028] During installation, the fixing part 311 is fixed to the cylinder body 20. More specifically, the fixing part 311 is pressed against the cylinder body 20 by the end cap 40 of the air pump. The fixing part 311 is provided with a fixing hole 313, and the cylinder body 20 is provided with a positioning block 22. The fixing hole 313 is installed in the positioning block 22.

[0029] In the non-inflated state, the second part 32 is attached to the end face of the air port 21 to seal the air port 21.

[0030] When gas is discharged from the air outlet 21, since the other side of the second part 32 relative to the connecting part 33 is the free side 321, the free side 321 will not be pulled. The second part 32 leaves the end face of the air outlet 21, and in turn drives the connecting part 33 and the free part 312 to spring open and deviate from the air outlet 21. The free part 312 will provide elastic buffer.

[0031] Furthermore, the first portion 31 includes free portions 312 located on the left and right sides of the connecting portion 33. These two free portions 312 provide cushioning and improve balance. Moreover, the two free portions 312 are symmetrical about the left and right sides of the connecting portion 33 to further enhance balance. The first portion 31 is annular, and the second portion 32 is a circle concentric with the first portion 31.

[0032] In the specification and claims of this application, the terms "comprising / including" and "having / including" and variations thereof are used to specify the presence of the stated features, values, steps or components, but do not exclude the presence or addition of one or more other features, values, steps, components or combinations thereof.

[0033] Some features of this invention are described in different embodiments for clarity; however, these features may also be described in combination in a single embodiment. Conversely, some features of this invention are described only in a single embodiment for brevity; however, these features may also be described individually or in any suitable combination in different embodiments.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas pump valve plate characterized by, The air pump valve plate includes a first part and a second part. The first part is spaced outside the second part. The first part includes a fixed part and a free part connected to the fixed part. The free part is connected to the second part through a connecting part. The other side of the second part relative to the connecting part is the free side.

2. The air pump valve as claimed in claim 1, wherein, The first part includes the free parts located on the left and right sides of the connecting part.

3. The air pump valve as claimed in claim 2, wherein, The first part is annular, and the second part is a circle concentric with the first part.

4. The air pump valve according to claim 2 or 3, wherein The two free parts are symmetrical about each other with respect to the connecting part.

5. The air pump valve as defined in claim 1, wherein The fixing part is provided with fixing holes.

6. The air pump valve as defined in claim 1, wherein The first part and the second part are located on the same plane.

7. A gas pump characterized by The air pump includes a piston assembly, a cylinder, and an air pump valve plate as described in any one of claims 1-6. The cylinder is provided with an air port, and the fixing part is fixed to the cylinder. In the non-inflated state, the second part is attached to the end face of the air port to close the air port.

8. The gas pump of claim 7, wherein, The air pump also includes an end cap that presses the fixing part against the cylinder body.

9. The gas pump of claim 7, wherein, The piston assembly includes a motor, a gear, a piston, and a piston rod. The piston rod is eccentrically connected to the gear, and the piston rod is connected to the piston. The piston is located inside the cylinder, and the motor is used to drive the gear to rotate.

10. The gas pump of claim 9, wherein, The motor is a brushless motor.

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