CN216198871U - Air pump - Google Patents

Abstract

The utility model discloses an air pump which comprises an upper cover, an air bag, a first air outlet one-way valve and a second air outlet one-way valve, wherein a first air outlet channel is defined in the upper cover, an air outlet is formed at one end of the first air outlet channel, the air bag is arranged on one axial side of the upper cover, a second air outlet channel is defined in the air bag, the air bag also participates in defining a first communicating channel, the second air outlet channel is communicated with the first air outlet channel through the first communicating channel, the first air outlet one-way valve is arranged between the first communicating channel and the first air outlet channel, and the second air outlet one-way valve is arranged between the first communicating channel and the second air outlet channel. The air pump has good working efficiency and high-low pressure air tightness.

Description

Air pump

Technical Field

The utility model relates to the technical field of fluid machinery, in particular to an air pump.

Background

The air pump has the functions of air suction, air inflation, vacuum pumping, pressurization, air circulation and the like, and is widely applied to various industries. In the correlation technique, the air pump is in the course of the work, and work efficiency is lower, produces the noise easily, influences user and uses and experiences

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. To this end, the utility model proposes an air pump having good working efficiency and high-low pressure airtightness.

An air pump according to an embodiment of the present invention includes: the air conditioner comprises an upper cover, a lower cover and a fan, wherein a first exhaust channel is defined in the upper cover, and an air outlet is formed at one end of the first exhaust channel; the air bag is arranged on one axial side of the upper cover, a second exhaust channel is defined in the air bag, a first communication channel is also defined in the air bag, and the second exhaust channel is communicated with the first exhaust channel through the first communication channel; the first air outlet one-way valve is arranged between the first communication channel and the first exhaust channel; and the second air outlet one-way valve is arranged between the first communicating channel and the second exhaust channel.

According to the air pump provided by the embodiment of the utility model, the first air outlet one-way valve and the second air outlet one-way valve are arranged, so that the air flow is subjected to multiple non-return on the flow path of the air pump, the working efficiency of the air pump is effectively improved, and meanwhile, the air flow needs to be ensured to have enough pressure when flowing through the first air outlet one-way valve and the second air outlet one-way valve, so that the high-low pressure air tightness of the air pump is favorably improved.

In some embodiments, the first communication port and the second communication port are formed at both ends of the first communication channel, respectively, and are formed on the airbag, the first communication port and the second communication port are respectively disposed at a distance from the second exhaust channel, and the upper cover further participates in defining a third exhaust channel disposed at a distance from the first exhaust channel to communicate the first communication port and the second exhaust channel.

In some embodiments, the first communication port and the second communication port both extend through the air bladder, and the air pump further comprises: the mounting seat is arranged on one side, back to the upper cover, of the air bag and is provided with a second communication channel, two ends of the second communication channel are communicated to the first communication port and the second communication port respectively, and the second communication channel, the first communication port and the second communication port define the first communication channel together.

In some embodiments, a side of the second communication passage facing the airbag is open.

In some embodiments, the second outlet check valve is disposed at an edge of the first communication port, and the second outlet check valve covers a portion of the first communication port and covers an inlet of the second communication channel.

In some embodiments, the second outlet check valve is integrally formed with the airbag.

In some embodiments, the first outlet check valve covers the outlet of the first communication channel.

In some embodiments, the first exhaust passage has an exhaust cavity, an outlet of the first communicating passage communicates with the exhaust cavity, the first air outlet check valve includes an installation portion and a valve plate portion, the installation portion is installed on the upper cover, and the valve plate portion is located at one axial end of the installation portion and located in the exhaust cavity.

In some embodiments, the upper cover comprises: the first cover body is in sealing fit with the air bag, a mounting hole is formed in the first cover body, the mounting part is provided with a first abutting part and a second abutting part, and the first abutting part and the second abutting part are abutted to the edges of the two axial ends of the mounting hole respectively; the second cover body is arranged on one side, back to the air bag, of the first cover body, and the second cover body and the first cover body jointly define the exhaust cavity.

In some embodiments, the second exhaust passages and the first communication passages are respectively plural, each of the first communication passages is located between two adjacent second exhaust passages in a circumferential direction of the upper cover, the upper cover is formed with plural third communication passages, an outlet of each of the third communication passages penetrates through a wall surface of the exhaust chamber, and each of the third communication passages is communicated with one of the first communication passages.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional view of an air pump according to one embodiment of the present invention;

FIG. 2 is an exploded view of the air pump shown in FIG. 1;

FIG. 3 is a cross-sectional view of the first outlet check valve and the first cover shown in FIG. 2;

FIG. 4 is a schematic view of the first cover shown in FIG. 3;

FIG. 5 is another schematic view of the first cover shown in FIG. 3;

FIG. 6 is yet another schematic view of the first cover shown in FIG. 3;

FIG. 7 is a schematic view of the bladder shown in FIG. 2;

FIG. 8 is another schematic view of the bladder shown in FIG. 7;

FIG. 9 is yet another schematic view of the bladder shown in FIG. 7;

FIG. 10 is a cross-sectional view of the bladder shown in FIG. 7;

FIG. 11 is a schematic view of the mount shown in FIG. 2;

FIG. 12 is a cross-sectional view of the mount shown in FIG. 11;

fig. 13 is another schematic view of the mount shown in fig. 11.

Reference numerals:

an air pump 100,

An upper cover 1, a central axis 10,

A first exhaust passage 1a, an air outlet 1b, a third exhaust passage 1c, a third communicating passage 1d, an exhaust chamber 1e, a first cover 11, a mounting hole 110, a fitting projection 111, a guide slope 111a, a second cover 12,

An air bag 2,

A second exhaust passage 2a, a first communicating passage 2b, a first communicating port 2c, a second communicating port 2d, a mounting cavity 2e, an airbag cavity 21, a partition plate 22, an air outlet hole 22a, a check valve sheet 23,

A mounting seat 3, a second communicating passage 3a, a mounting through hole 3b,

A first outlet check valve 4A, a mounting portion 41, a first stop portion 411, a second stop portion 412, a valve plate portion 42,

A second air outlet one-way valve 4B,

A driving device 5, a driver 51, a connecting rod assembly 52, an eccentric wheel 521, a connecting rod 522, a push head 523,

A base 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

Next, with reference to the drawings, an air pump 100 according to an embodiment of the present invention is described.

As shown in fig. 1, the air pump 100 includes an upper cover 1 and an air bag 2, a first exhaust passage 1a is defined in the upper cover 1, an air outlet 1b is formed at one end of the first exhaust passage 1a, the air bag 2 is disposed at one side of the upper cover 11 in the axial direction, a second exhaust passage 2a is defined in the air bag 2, the air bag 2 further participates in defining a first communication passage 2b, the second exhaust passage 2a is communicated with the first exhaust passage 1a through the first communication passage 2b, and after entering the second exhaust passage 2a, the air flow can flow into the first exhaust passage 1a through the first communication passage 2b and leave the upper cover 1 through the air outlet 1 b.

It should be noted that, in terms of the air outlet of the upper cover 1, that is, the air flow flowing into the first exhaust channel 1a is exhausted from the upper cover 1 through the air outlet 1b, the air outlet 1b may refer to only the air outlet 1b of the upper cover 1 alone, or may refer to the air outlet 1b of the air pump 100 as a whole. "the airbag 2 participates in defining the first communication passage 2 b", and may include that the first communication passage 2b is defined only by the airbag 2, or the first communication passage 2b may be defined by the airbag 2 together with other components, for example, the first communication passage 2b may be defined by the airbag 2 together with a later-described mounting seat 3.

As shown in fig. 1 and fig. 2, the air pump 100 further includes a first air outlet check valve 4A and a second air outlet check valve 4B, the first air outlet check valve 4A is disposed between the first communicating channel 2B and the first exhaust channel 1a, and the first air outlet check valve 4A can limit the flow direction of the air flow to avoid the air flow from flowing back between the first communicating channel 2B and the first exhaust channel 1a, and ensure that the air flow flows from the first communicating channel 2B to the first exhaust channel 1a to avoid the air flow in the air pump 100 from flowing mixed, and ensure the working efficiency of the air pump 100; the second air outlet check valve 4B is disposed between the first communicating channel 2B and the second air exhaust channel 2a, and the second air outlet check valve 4B can also limit the flow direction of the air flow to avoid the air flow from flowing back between the first communicating channel 2B and the second air exhaust channel 2a, so as to ensure that the air flow flows from the second air exhaust channel 2a to the first communicating channel 2B, so as to further ensure the mixed flow of the air flow in the air pump 100, and further ensure the working efficiency of the air pump 100.

Obviously, the flow paths of the gas flow are: the second exhaust channel 2a → the first communication channel 2B → the first exhaust channel 1a, in the above whole exhaust path, the second air outlet check valve 4B and the first air outlet check valve 4A sequentially and unidirectionally guide the air flow, so that the air flow is stopped for many times on the flow path, the working efficiency of the air pump 100 is effectively improved, meanwhile, the air flow needs to be ensured to have sufficient pressure when flowing through the first air outlet check valve 4A and the second air outlet check valve 4B, thereby being beneficial to improving the high-low pressure air tightness of the air pump 100.

According to the air pump 100 of the embodiment of the utility model, the first air outlet one-way valve 4A and the second air outlet one-way valve 4B are arranged, so that the air flow is subjected to multiple non-return operations on the flow path of the air pump, the working efficiency of the air pump 100 is effectively improved, and meanwhile, the air flow needs to have enough pressure when flowing through the first air outlet one-way valve 4A and the second air outlet one-way valve 4B, so that the high-low pressure air tightness of the air pump 100 is favorably improved.

Alternatively, in the example of fig. 1 and 2, the first communicating channel 2b extends along a curve, which is advantageous for lengthening the airflow flow path, so that the airflow flow path has a certain degree of complexity to reduce airflow flow noise.

In some embodiments, as shown in fig. 1, 2 and 5, the first communication port 2c and the second communication port 2d are formed at both ends of the first communication passage 2b, respectively, one of the first communication port 2c and the second communication port 2d may be formed as an inlet of the first communication passage 2b, and the other may be formed as an outlet of the first communication passage 2b, both the first communication port 2c and the second communication port 2d are formed on the airbag 2, and the first communication port 2c and the second communication port 2d are respectively provided at a distance from the second exhaust passage 2 a; the upper cover 1 also participates in defining a third exhaust passage 1c, the third exhaust passage 1c being provided at a distance from the first exhaust passage 1a, and the third exhaust passage 1c communicating the first communication port 2c and the second exhaust passage 2a, for example, an inlet of the third exhaust passage 1c may be provided opposite the second exhaust passage 2a in the axial direction of the upper cover 1, and an outlet of the third exhaust passage 1c may be provided opposite the first communication port 2c in the axial direction of the upper cover 1, when the first communication port 2c is formed as an inlet of the first communication passage 2b, and the second communication port 2d is formed as an outlet of the first communication passage 2 b. The arrows shown in fig. 1, 7 and 12 are used to indicate the flow direction of the airflow.

Thus, the flow path of the gas flow is: second exhaust passage 2a → third exhaust passage 1c → first intercommunication passage 2b → first exhaust passage 1a, then through setting up third exhaust passage 1c, be favorable to prolonging the air current flow path, make the air current flow path have certain complexity, be favorable to increasing the noise loss, reduce the air current noise of flowing, longer air current flow path can provide great buffer space for the gas simultaneously, make the air current flow more steady, with the operating noise that further reduces air pump 100, promote air pump 100 sound quality.

In some embodiments, as shown in fig. 1, 2, and 11, both the first communication port 2c and the second communication port 2d penetrate the airbag 2, for example, the first communication port 2c penetrates the airbag 2 in the axial direction of the upper cover 1, and the second communication port 2d penetrates the airbag 2 in the axial direction of the upper cover 1; the air pump 100 further includes a mount base 3, the mount base 3 is provided on a side of the airbag 2 facing away from the upper cover 1, and the mount base 3 is formed with a second communicating passage 3a, both ends of the second communicating passage 3a are communicated to the first communicating port 2c and the second communicating port 2d, respectively, and the second communicating passage 3a defines the first communicating passage 2b together with the first communicating port 2c and the second communicating port 2 d. From this, through set up second intercommunication passageway 3a on mount pad 3 to make second intercommunication passageway 3a and first intercommunication mouth 2c and second intercommunication mouth 2d inject first intercommunication passageway 2b jointly, made things convenient for the shaping of first intercommunication passageway 2b, be favorable to simplifying the structure of gasbag 2.

Alternatively, in the example of fig. 11, the side of the second communication passage 3a facing the airbag 2 is provided to be open, and the second communication passage 3a may be formed by recessing a portion of the surface of the side of the mounting seat 3 facing the airbag 2, further facilitating the machine-shaping of the second communication passage 3 a. Of course, the side of the second communication channel 3a facing the airbag 2 may also be provided closed.

In some embodiments, as shown in fig. 7, second outlet check valve 4B is disposed at the edge of first communication port 2c, second outlet check valve 4B covers a portion of first communication port 2c, and second outlet check valve 4B covers the inlet of second communication channel 3a, so that the inlet of second communication port 3a is offset from first communication port 2c, and then the air flow at first communication port 2c pushes open second outlet check valve 4B and flows to second communication channel 3a through the inlet of second communication channel 3a, ensuring communication between third exhaust channel 1c and second communication channel 3a and unidirectional flow of air flow.

Of course, the second outlet check valve 4B may also be provided at the edge of the second communication port 2d, but is not limited thereto; for example, there may be a plurality of second outlet check valves 4B, wherein one second outlet check valve 4B is provided at the edge of first communication port 2c, and second outlet check valve 4B is provided at the edge of second communication port 2 d.

Optionally, the second air outlet one-way valve 4B is integrally formed in the airbag 2, so that the assembly process of the second air outlet one-way valve 4B and the airbag 2 can be saved, the second air outlet one-way valve 4B can be conveniently formed, and the second air outlet one-way valve 4B can be reliably used.

For example, in the example of fig. 7, second outlet check valve 4B is formed in a plate-shaped structure, and second outlet check valve 4B is integrally formed at the edge of first communication port 2c, that is, second outlet check valve 4B is integrally formed with the edge portion of first communication port 2c, so that the assembly process of second outlet check valve 4B and airbag 2 can be saved, the formation of second outlet check valve 4B is facilitated, the processing cost is reduced, the connection reliability of second outlet check valve 4B and airbag 2 is ensured, and the use reliability of second outlet check valve 4B is ensured.

In some embodiments, as shown in fig. 1 and 3, first outlet check valve 4A covers the outlet of first communication channel 2b, and the airflow at first communication channel 2b pushes first outlet check valve 4A open to first exhaust channel 1a, ensuring communication between first communication channel 2b and first exhaust channel 1a and unidirectional flow of airflow.

In some embodiments, as shown in fig. 1 to 3, the first exhaust passage 1a has an exhaust chamber 1e, the exhaust chamber 1e has a cross-sectional area larger than that of the rest of the first exhaust passage 1a, and the outlet of the first communicating passage 2b communicates with the exhaust chamber 1e, so that the outlet of the first communicating passage 2b may communicate with the exhaust chamber 1e directly or indirectly; first check valve 4A of giving vent to anger includes installation department 41 and valve plate portion 42, and installation department 41 is installed in upper cover 1 to realize first check valve 4A's of giving vent to anger installation, valve plate portion 42 locate the axial one end of installation department 41, and valve plate portion 42 is located exhaust chamber 1e, then exhaust chamber 1e can provide sufficient setting space and allow the deformation space for valve plate portion 42.

In some embodiments, as shown in fig. 1 and 3, the upper cover 1 includes a first cover body 11 and a second cover body 12, the first cover body 11 is in sealing fit with the airbag 2, a mounting hole 110 is formed on the first cover body 11, the mounting hole 110 may be coaxially disposed with the first exhaust passage 1a, the mounting portion 41 has a first abutting portion 411 and a second abutting portion 412, the first abutting portion 411 and the second abutting portion 412 are sequentially disposed along an axial direction of the mounting portion 41, the first abutting portion 411 and the second abutting portion 412 abut against edges of two axial ends of the mounting hole 110, respectively, and then the first abutting portion 411 and the second abutting portion 412 are clamped at two axial ends of the mounting hole 110 to achieve positioning and mounting of the mounting portion 41; the second cover 12 is disposed on a side of the first cover 11 facing away from the airbag 2, and the second cover 12 and the first cover 11 together define a vent chamber 1 e. Therefore, the first cover body 11 and the second cover body 12 are connected, so that the first air outlet one-way valve 4A is convenient to install, that is, the first air outlet one-way valve 4A is installed on the first cover body 11 firstly, and then the second cover body 12 is installed on the first cover body 11.

Alternatively, in the example of fig. 3, the valve sheet portion 42 is configured substantially as a sheet body having a circular arc surface, and the middle portion of the valve sheet portion 42 is protruded toward a direction away from the airbag 2, the valve sheet portion 42 is deformed by the air flow to achieve smooth circulation of the air flow.

In some embodiments, as shown in fig. 2, the second exhaust passages 2a and the first communication passages 2b are respectively plural, the plural second exhaust passages 2a are arranged at intervals in the circumferential direction of the upper cover 1, the plural first communication passages 2b are arranged at intervals in the circumferential direction of the upper cover 1, and each first communication passage 2b is located between two adjacent second exhaust passages 2a in the circumferential direction of the upper cover 1, and the plural second exhaust passages 2a and the plural first communication passages 2b may be alternately arranged one by one in the circumferential direction of the upper cover 1 when the number of the second exhaust passages 2a is the same as the number of the first communication passages 2 b.

The upper cover 1 is formed with a plurality of third communicating channels 1d, an outlet of each third communicating channel 1d penetrates through a wall surface of the exhaust cavity 1e, so that each third communicating channel 1d is directly communicated with the exhaust cavity 1e, each third communicating channel 1d is communicated with one first communicating channel 2b, air flow of the plurality of first communicating channels 2b can be gathered to the exhaust cavity 1e through the plurality of third communicating channels 1d, and the valve piece part 42 covers the plurality of third communicating channels 1d to achieve a non-return effect.

In some embodiments, as shown in fig. 1 and 2, the airbag 2 has a plurality of deformable airbag cavities 21, the plurality of airbag cavities 21 are arranged at intervals along the circumferential direction of the upper cover 1, each airbag cavity 21 defines a second exhaust channel 2a, the pressing of the airbag cavity 21 can exhaust the airflow in the second exhaust channel 2a to the first communication channel 2b, and the releasing of the airbag cavity 21 can enable the airflow at the air inlet of the air pump 100 to flow to the second exhaust channel 2a, so as to realize the air suction and exhaust of the air pump 100; and air pump 100 is at the during operation, can extrude, release a plurality of gasbag chambeies 21 in proper order for a plurality of second exhaust passage 2a are in proper order towards corresponding first communicating channel 2b exhaust, are convenient for realize air pump 100's continuous exhaust, guarantee that air pump 100 exhausts stably.

For example, in the example of fig. 7-10, a partition 22 is provided in the airbag cavity 21 to partition the internal space of the airbag cavity 21 into the second exhaust passage 2a and the installation cavity 2e, and the link assembly 52 of the air pump 100 may be installed in the installation cavity 2e to achieve the squeezing and releasing of the airbag cavity 21; an air outlet hole 22a is formed in the partition plate 22, the air outlet hole 22a is communicated with the installation cavity 2e and the second exhaust channel 2a, a one-way valve plate 23 is arranged at the edge of the air outlet hole 22a, an air inlet hole is formed in the connecting rod assembly 52, the air inlet hole and the air outlet hole 22a are arranged in a staggered mode, and the air inlet hole and the one-way valve plate 23 are arranged in a right-to-right mode, so that when the connecting rod assembly 52 extrudes the air bag cavity 21, the space of the second exhaust channel 2a is reduced, due to the limitation of the one-way valve plate 23, air in the second exhaust channel 2a is exhausted to the third exhaust channel 1c, when the connecting rod assembly 52 releases the air bag cavity 21, the space in the second exhaust channel 2a is increased, and the air at the air inlet hole jacks the one-way valve plate 23 to flow to the second exhaust channel 2 a.

Alternatively, check valve sheet 23 is integrally formed with separator 22.

As shown in fig. 1 and 3, a side surface of the upper cover 1 facing the airbag 2 has a fitting protrusion 111, the fitting protrusion 111 may be formed by protruding a side surface of the upper cover 1 facing the airbag 2, the third exhaust passage 1c penetrates through an outer circumferential edge of the fitting protrusion 111, and the fitting protrusion 111 protrudes into the second exhaust passage 2a, so that the fitting protrusion 111 may not completely shield the second exhaust passage 2a, thereby facilitating the rapid assembly of the upper cover 1 and the airbag 2. The side surface of the matching protrusion 111 facing the airbag 2 has a guiding inclined surface 111a, and the guiding inclined surface 111a extends from outside to inside toward the direction close to the second exhaust channel 2a, so that the guiding inclined surface 111a can better guide and buffer the airflow discharged from the second exhaust channel 2a, and the airflow can be ensured to stably flow.

Note that the direction "outer" refers to a direction away from the center axis 10 of the upper cap 1 in the radial direction of the upper cap 1, and the opposite direction is defined as the direction "inner".

As shown in fig. 1 and 11, the mounting seat 3 is further formed with a mounting through hole 3b, the mounting through hole 3b penetrates through two ends of the mounting seat 3 along the axial direction of the upper cover 1, the airbag cavity 21 is fitted in the mounting through hole 3b, and the airbag cavity 21 extends out of one side of the mounting through hole 3b far away from the upper cover 1, so that the airbag cavity 21 is connected with the link assembly 52 of the air pump 100. Wherein the mounting through-holes 3b are plural, the second communicating path 3a is plural, and each second communicating path 3a is located between two adjacent mounting through-holes 3 b.

As shown in fig. 1 and 2, the air pump 100 further includes a driving device 5, the driving device 5 includes a driver 51 and a link assembly 52, and the driver 51 drives the link assembly 52 to operate; the connecting rod assembly 52 comprises an eccentric wheel 521, a connecting rod 522 and a push head 523, wherein the eccentric wheel 521 is mounted on a driving shaft of the driver 51 to be driven by the driving shaft to rotate, an inserting and matching hole is formed in the eccentric wheel 521 and is obliquely arranged relative to the axial direction of the driving shaft, the connecting rod 522 is inserted and matched in the inserting and matching hole, the connecting rod 522 is obliquely arranged relative to the axial direction of the driving shaft, the other end of the connecting rod 522 is matched with the push head 523, the push head 523 comprises a plurality of matching parts, the matching parts are matched with the mounting cavity 2e, air inlet holes are formed in the matching parts, and each matching part is driven by the connecting rod 522 to swing so as to extrude and release the air bag cavity 21. The air pump 100 further comprises a base 6, the driver 51 is mounted outside the base 6, the base 6 and the mounting base 3 together define a containing cavity, and the connecting rod assembly 52 is arranged in the containing cavity.

Note that, in the description of the present application, the axial direction of the upper cap 1 is the extending direction of the central axis 10 of the upper cap 1, and the circumferential direction of the upper cap 1 is the direction around the central axis 10 of the upper cap 1.

Other constructions and operations of the air pump 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An air pump (100), comprising:

the air conditioner comprises an upper cover (1), wherein a first exhaust channel (1a) is defined in the upper cover (1), and an air outlet (1b) is formed at one end of the first exhaust channel (1 a);

the air bag (2) is arranged on one axial side of the upper cover (1), a second exhaust channel (2a) is defined in the air bag (2), the air bag (2) also participates in defining a first communication channel (2b), and the second exhaust channel (2a) is communicated with the first exhaust channel (1a) through the first communication channel (2 b);

a first outlet check valve (4A), wherein the first outlet check valve (4A) is arranged between the first communication channel (2b) and the first exhaust channel (1 a);

and the second air outlet one-way valve (4B), and the second air outlet one-way valve (4B) is arranged between the first communication channel (2B) and the second exhaust channel (2 a).

2. The air pump (100) according to claim 1, wherein the first communication passage (2b) has two ends formed with a first communication port (2c) and a second communication port (2d), respectively, the first communication port (2c) and the second communication port (2d) each being formed on the air bag (2), the first communication port (2c) and the second communication port (2d) being disposed at an interval from the second exhaust passage (2a), respectively, the upper cover (1) further participating in defining a third exhaust passage (1c) disposed at an interval from the first exhaust passage (1a) to communicate the first communication port (2c) and the second exhaust passage (2 a).

3. The air pump (100) of claim 2, wherein the first communication port (2c) and the second communication port (2d) both penetrate the air bag (2), the air pump (100) further comprising:

the mounting seat (3) is arranged on one side, facing away from the upper cover (1), of the airbag (2), and is provided with a second communication channel (3a), two ends of the second communication channel (3a) are communicated to a first communication port (2c) and a second communication port (2d) respectively, and the second communication channel (3a) and the first communication port (2c) and the second communication port (2d) define the first communication channel (2b) together.

4. Air pump (100) according to claim 3, characterized in that the side of the second communication channel (3a) facing the airbag (2) is open.

5. The air pump (100) of claim 3, wherein the second outlet check valve (4B) is provided at an edge of the first communication port (2c), and the second outlet check valve (4B) covers a part of the first communication port (2c) and covers an inlet of the second communication passage (3 a).

6. The air pump (100) of any one of claims 1-5, wherein the second outlet check valve (4B) is integrally formed with the air bag (2).

7. Air pump (100) according to any one of claims 1-5, wherein the first air outlet check valve (4A) covers the outlet of the first communication channel (2 b).

8. The air pump (100) of claim 7, wherein the first exhaust passage (1a) has an exhaust cavity (1e), the outlet of the first communicating passage (2b) communicates with the exhaust cavity (1e), the first air outlet check valve (4A) comprises a mounting portion (41) and a valve plate portion (42), the mounting portion (41) is mounted on the upper cover (1), and the valve plate portion (42) is disposed at one axial end of the mounting portion (41) and located in the exhaust cavity (1 e).

9. Air pump (100) according to claim 8, characterized in that said upper cover (1) comprises:

the first cover body (11), the first cover body (11) is in sealing fit with the airbag (2), a mounting hole (110) is formed in the first cover body (11), the mounting portion (41) is provided with a first abutting portion (411) and a second abutting portion (412), and the first abutting portion (411) and the second abutting portion (412) are abutted to the edges of two axial ends of the mounting hole (110) respectively;

the second cover body (12) is arranged on one side, facing away from the air bag (2), of the first cover body (11), and the second cover body (12) and the first cover body (11) jointly define the exhaust cavity (1 e).

10. The air pump (100) according to claim 8, wherein the second air discharge passage (2a) and the first communication passage (2b) are plural, each of the first communication passages (2b) is located between two adjacent second air discharge passages (2a) in a circumferential direction of the upper cover (1), the upper cover (1) is formed with a plurality of third communication passages (1d), an outlet of each of the third communication passages (1d) penetrates a wall surface of the air discharge chamber (1e), and each of the third communication passages (1d) communicates with one of the first communication passages (2 b).

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