CN216241195U - Air pump - Google Patents

Abstract

The utility model discloses an air pump which comprises an upper cover, an air bag and an 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, a second air outlet channel is defined in the air bag, a communication port for communicating the first air outlet channel with the second air outlet channel is formed in the air bag, the air outlet one-way valve is arranged at the communication port and comprises a valve plate and a matching column, the valve plate is formed into a cylindrical structure and integrally formed at the edge of the communication port, an inlet and an outlet are respectively formed at two axial ends of the valve plate, and the matching column is tightly inserted and matched on the inner side of the valve plate along the direction from the inlet to the outlet so that the air outlet one-way valve guides air flow in the second air outlet channel to the first air outlet channel. The air pump is convenient to assemble and low in cost.

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 assembly is comparatively loaded down with trivial details, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the air pump which is convenient to assemble and low in cost.

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; an airbag defining a second exhaust passage therein, the airbag being formed with a communication port communicating the first exhaust passage and the second exhaust passage; the air outlet one-way valve is arranged at the communication port and comprises a valve block and a matching column, the valve block is formed into a cylindrical structure and is integrally formed at the edge of the communication port, an inlet and an outlet are formed at two axial ends of the valve block respectively, and the matching column is arranged along the direction of the inlet towards the outlet and is tightly inserted and matched at the inner side of the valve block so that the air outlet one-way valve guides air flow in the second exhaust channel to the first exhaust channel.

According to the air pump provided by the embodiment of the utility model, the air outlet one-way valve comprises the valve plate and the matching column, and the matching column is tightly matched with the valve plate, so that the air outlet pressure of the air pump is convenient to ensure on the premise of avoiding the counter flow of air flow in the air pump, and the air outlet one-way valve is simple in structure and convenient to assemble; through valve block integrated into one piece in the border of intercommunication mouth, can save the equipment process of valve block and gasbag, reduce the processing cost simultaneously.

In some embodiments, the valve plate includes a first fitting portion and a second fitting portion that are sequentially arranged along an axial direction of the valve plate, the first fitting portion is located between the inlet and the second fitting portion, an inner peripheral wall of the first fitting portion and an outer peripheral wall of the fitting column are arranged at an interval, and the second fitting portion and the fitting column are in transition fit or interference fit.

In some embodiments, the cross-sectional area of the first mating portion gradually decreases and the cross-sectional area of the second mating portion gradually decreases or remains constant along a direction from the inlet toward the outlet.

In some embodiments, the first mating portion is a tapered cylindrical structure and the second mating portion is a straight cylindrical structure; or, the first matching part and the second matching part are both in a conical cylindrical structure.

In some embodiments, the air pump further comprises: the mounting seat is arranged on one side, back to the upper cover, of the air bag, the valve plate extends towards the mounting seat from the communication port, and the matching column is fixedly arranged on the upper cover and extends towards the mounting seat.

In some embodiments, the mating post is integrally formed with the upper cover.

In some embodiments, the mount participates in defining a first communication passage to communicate the outlet with the first exhaust passage, and the airbag defines a second communication passage therein to communicate the first communication passage with the first exhaust passage.

In some embodiments, the outlet check valves are multiple and are arranged at intervals along the circumferential direction of the upper cover, the first communication channels are multiple and are all communicated with the second communication channel, and each first communication channel is arranged corresponding to one outlet check valve and extends along the radial direction of the upper cover.

In some embodiments, the airbag has a plurality of deformable airbag chambers, the plurality of airbag chambers being spaced apart along a circumference of the upper cover, each of the airbag chambers defining one of the second exhaust passages.

In some embodiments, the upper cover participates in defining a third communication passage that communicates the second exhaust passage and the inlet, the third communication passage being provided around the mating post.

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 schematic view of the upper cover shown in FIG. 2;

FIG. 4 is a cross-sectional view of the upper cover shown in FIG. 3;

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

FIG. 6 is a schematic view of the bladder shown in FIG. 2;

FIG. 7 is a cross-sectional view of the air bag and pusher head shown in FIG. 2;

FIG. 8 is another schematic view of the bladder shown in FIG. 6;

FIG. 9 is a schematic view of the mount shown in FIG. 2;

FIG. 10 is a cross-sectional view of the mount shown in FIG. 9;

fig. 11 is another schematic view of the mount shown in fig. 9.

Reference numerals:

an air pump 100,

An upper cover 1, a central axis 10, a first exhaust channel 1a, an air outlet 1b, a third communicating channel 1c,

A fitting projection 11, a guide slope 11a,

An airbag 2, a second exhaust passage 2a, a communication port 2b, a second communication passage 2c, a mounting chamber 2d,

An air bag cavity 21, a clapboard 22, an air outlet 22a, a one-way valve sheet 23,

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

An air outlet one-way valve 4,

Valve sheet 41, inlet 41a, outlet 41b, first fitting portion 411, second fitting portion 412,

A matching column 42,

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 1 in the axial direction, a second exhaust passage 2a is defined in the air bag 2, and the air bag 2 is formed with a communication port 2b communicating the first exhaust passage 1a with the second exhaust passage 2a, so that after entering the second exhaust passage 2a, the air flow can flow into the first exhaust passage 1a through the communication port 2b and leave the upper cover 1 through the air outlet 1 b.

The air pump 100 further includes an air outlet check valve 4, the air outlet check valve 4 is disposed at the communication port 2b, the air outlet check valve 4 includes a valve sheet 41 and a matching column 42, the valve sheet 41 is formed into a cylindrical structure, the valve sheet 41 can be connected to the communication port 2b, an inlet 41a and an outlet 41b are respectively formed at two axial ends of the valve sheet 41, the inlet 41a is communicated with the second exhaust channel 2a, the outlet 41b is communicated with the first exhaust channel 1a, the matching column 42 is tightly inserted and matched inside the valve sheet 41 along the direction from the inlet 41a to the outlet 41b, so that the air outlet check valve 4 guides the air flow in the second exhaust channel 2a to the first exhaust channel 1a, the air flow cannot flow reversely flow back to the second exhaust channel 2a from the first exhaust channel 1a, so as to avoid mixed flow in the air pump 100, meanwhile, since the matching column 42 is tightly matched with the valve sheet 41, when the air flow flows to the air outlet check valve 4, the air flow flowing from the second exhaust channel 2a to the first exhaust channel 1a has a certain pressure, and the valve plate 41 deforms to a certain extent under the action of the air flow pressure, so that the air flow passes through the gap between the valve plate 41 and the matching column 42, the high-low pressure air tightness requirement of the air pump 100 is ensured, and the air outlet one-way valve 4 is convenient to assemble.

Wherein, valve block 41 integrated into one piece is in the border of intercommunication mouth 2b, that is to say, valve block 41 and the marginal portion integrated into one piece of intercommunication mouth 2b, then can save the equipment process of valve block 41 and gasbag 2, make things convenient for the shaping of valve block 41, reduce processing cost, ensure valve block 41 and gasbag 2's reliability of being connected simultaneously, guarantee that valve block 41 uses reliably.

It should be noted that, for the air outlet of the upper cover 1, the air outlet 1b of the upper cover 1 is directed to the air outlet of the upper cover 1, that is, the air flowing into the first exhaust channel 1a is exhausted from the upper cover 1 through the air outlet 1b, and 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 whole air pump 100; "cylindrical structure" is to be understood in a broad sense and includes, but is not limited to, cylindrical structures, polygonal cylindrical structures, tapered cylindrical structures, straight cylindrical structures, etc., and the cross-sectional shape of the mating post 42 may be circular, polygonal, elliptical, etc.

According to the air pump 100 provided by the embodiment of the utility model, the air outlet one-way valve 4 comprises the valve plate 41 and the matching column 42, and the matching column 42 is tightly matched with the valve plate 41, so that the air outlet pressure of the air pump 100 is conveniently ensured on the premise of avoiding the reverse flow of the air flow in the air pump 100, and the air outlet one-way valve 4 is simple in structure and convenient to assemble; the valve plate 41 is integrally formed at the edge of the communication port 2b, so that the assembly process of the valve plate 41 and the airbag 2 can be saved, and the processing cost can be reduced.

In some embodiments, as shown in fig. 1, the central axis of the valve sheet 41 is substantially parallel to the central axis of the upper cover 1, and an inlet 41a and an outlet 41b may be formed at an end of the valve sheet 41 facing the upper cover 1.

In some embodiments, as shown in fig. 7, the valve sheet 41 includes a first fitting portion 411 and a second fitting portion 412 sequentially arranged along the axial direction of the valve sheet 41, the first fitting portion 411 is located between the inlet 41a and the second fitting portion 412, and the second fitting portion 412 is located between the outlet 41b and the first fitting portion 411. The inner peripheral wall of the first matching portion 411 and the outer peripheral wall of the matching column 42 are arranged at intervals, so that an air inlet channel is defined between the inner peripheral wall of the first matching portion 411 and the outer peripheral wall of the matching column 42, the air inlet channel is communicated with the inlet 41a, the second matching portion 412 is in transition fit or interference fit with the matching column 42, smooth air inlet can be achieved between the matching column 42 and the valve plate 41, and a certain matching tightness is achieved between the matching column 42 and the valve plate 41, so that the non-return function of the air outlet one-way valve 4 is ensured; in addition, because first cooperation portion 411 corresponds with import 41a, and the internal perisporium of first cooperation portion 411 sets up with the periphery wall interval of cooperation post 42, then cooperation post 42 is inserted and is joined in marriage in valve block 41 inboard along the direction of first cooperation portion 411 towards second cooperation portion 412, and first cooperation portion 411 can play certain guide function to the installation of cooperation post 42, is convenient for promote the packaging efficiency of giving vent to anger check valve 4.

In some embodiments, as shown in fig. 7, the cross-sectional area of the first matching portion 411 gradually decreases along the direction from the inlet 41a to the outlet 41b, so that the first matching portion 411 and the second matching portion 412 are better connected in transition, and the guiding effect of the first matching portion 411 is further improved, thereby ensuring the assembly efficiency of the first matching portion 411 and the matching column 42; the cross-sectional area of the second mating portion 412 gradually decreases or remains constant along the direction from the inlet 41a toward the outlet 41b, so as to achieve a transition fit or interference fit of the second mating portion 412 with the mating post 42.

Alternatively, in the example of fig. 7, the first fitting portion 411 is a tapered cylindrical structure, the second fitting portion 412 is a straight cylindrical structure, and the cross-sectional area of the straight cylindrical structure is always kept constant, for example, the second fitting portion 412 may be a cylindrical structure. Of course, the present application is not so limited; for example, the first fitting portion 411 and the second fitting portion 412 are both tapered cylindrical structures, for example, the entire valve sheet 41 is formed into a tapered cylindrical structure, but of course, the entire valve sheet 41 may also be formed into a hollow spherical structure.

In some embodiments, as shown in fig. 1 and 2, the air pump 100 further includes a mounting seat 3, the mounting seat 3 is disposed on a side of the airbag 2 facing away from the upper cover 1, the valve sheet 41 extends from the communication port 2b toward the mounting seat 3, an axial end of the valve sheet 41 is flush with the communication port 2b, and the axial end of the valve sheet 41 is directly connected to an edge of the communication port 2b, the fitting pillar 42 is fixedly disposed on the upper cover 1, and the fitting pillar 42 extends toward the mounting seat 3, the communication port 2b can be formed as an inlet 41a of the valve sheet 41, an end of the valve sheet 41 facing toward the mounting seat 3 defines an outlet 41b, so that the air flow in the air outlet check valve 4 flows along a direction of the upper cover 1 toward the mounting seat 3, that is, the air flow in the air outlet check valve 4 flows away from the upper cover 1, and the air flow in the air outlet check valve 4 flows toward the first air outlet channel 1a of the upper cover 1, so that the air flow flowing from the air outlet check valve 4 can turn at least twice to the first air outlet channel 1a, the air pump is beneficial to prolonging the flow path of the air flow, and the longer air flow channel can provide larger buffer space for the air, so that the air flow is more stable, the working noise of the air pump 100 is reduced, and the sound quality of the air pump 100 is improved.

Optionally, as shown in fig. 1 and fig. 3 to fig. 5, the matching column 42 is integrally formed on the upper cover 1, and the matching column 42 and the upper cover 1 are formed as an integral piece, so that an assembly process of the matching column 42 and the upper cover 1 can be saved, the forming of the matching column 42 is facilitated, the processing cost is reduced, meanwhile, the connection reliability of the matching column 42 and the upper cover 1 is ensured, and the use reliability of the matching column 42 is ensured.

In some embodiments, as shown in fig. 1, 2, and 9-11, the mounting seat 3 participates in defining the first communicating channel 3a to communicate the outlet 41b with the first exhaust passage 1a, and the airbag 2 defines the second communicating channel 2c therein to communicate the first communicating channel 3a with the first exhaust passage 1a, so that the air flow at the outlet 41b may flow into the first exhaust passage 1a after passing through the first communicating channel 3a and the second communicating channel 2c in sequence. Obviously, the first communicating channel 3a and the second communicating channel 2c are provided to realize smooth flow of the air flow in the air outlet check valve 4 to the first exhaust channel 1a, and the first communicating channel 3a and the second communicating channel 2c are respectively formed on different parts, which is beneficial to simplify the structure of the airbag 2 and facilitate the molding of the first communicating channel 3a and the second communicating channel 2 c.

It should be noted that "the mount 3 participates in defining the first communication passage 3 a" may include that the first communication passage 3a is defined only by the mount 3, or the first communication passage 3a may be defined by the mount 3 together with other components, for example, the first communication passage 3a may be defined by the mount 3 and the airbag 2 together. For example, in the example of fig. 1 and 9-11, the first communicating path 3a is formed by recessing a portion of a surface of a side of the mount 3 facing the airbag 2 such that the side of the first communicating path 3a facing the airbag 2 is disposed open, the airbag 2 is fixedly connected with the mount 3, and the airbag 2 closes the open side of the first communicating path 3a such that the airbag 2 and the mount 3 together define the first communicating path 3a, thereby facilitating the molding of the first communicating path 3 a.

In some embodiments, as shown in fig. 1 and 3 to 8, the air outlet check valves 4 are multiple, the multiple air outlet check valves 4 are arranged at intervals along the circumferential direction of the upper cover 1, the first communication channels 3a are multiple, the multiple first communication channels 3a are all communicated with the second communication channel 2c, each first communication channel 3a is arranged corresponding to one air outlet check valve 4, and each first communication channel 3a extends along the radial direction of the upper cover 1, so that the multiple first communication channels 3a are converged in the same second communication channel 2c, and thus, the air flow flowing through the multiple air outlet check valves 4 can be discharged to the first air discharge channel 1a through the same second communication channel 2c, and the second communication channel 2a can be formed at the central position of the air bag 2, which is beneficial to simplifying the structure of the air bag 2.

It should be noted that, in the description of the present invention, "a plurality" means two or more; the circumferential direction of the upper cap 1 is a direction around the central axis 10 of the upper cap 1. For example, in the example of the figure, the number of the outlet check valve 4 and the number of the first communication channels 3a are three, the airbag 2 is formed with three communication ports 2b, each communication port 2b may correspond to a radial outer end of the corresponding first communication channel 3a, an outline of a orthographic projection of the radial outer end of each first communication channel 3a on the cross section of the upper cover 1 is substantially circular, and a portion of the outlet check valve 4 may extend into the corresponding first communication channel 3a, so as to ensure that the airflow is better diverted from the outlet check valve 4 to the first communication channel 3 a. Wherein the cross section of the upper cover 1 is perpendicular to the central axis 10 of the upper cover 1.

In some embodiments, as shown in fig. 2, 6-8, 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 inlet 41a of the air outlet one-way valve 4, 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 when the air pump 100 works, the plurality of air bag cavities 21 can be sequentially extruded and released, so that the plurality of second exhaust channels 2a sequentially exhaust towards the air outlet one-way valve 4, the continuous exhaust of the air pump 100 is convenient to realize, and the stable exhaust of the air pump 100 is ensured.

For example, in the example of fig. 1 and 7, 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 2d, and the link assembly 52 of the air pump 100 may be installed in the installation cavity 2d 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 2d 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.

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

As shown in fig. 1, 9-11, 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 connecting rod assembly 52. Wherein, the mounting through holes 3b are plural, and each first communicating channel 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, the inserting and matching hole 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 2d, 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.

In some embodiments, as shown in fig. 3 to 6, the upper cover 1 participates in defining the third communication channel 1c, and the third communication channel 1c communicates the second exhaust channel 2a with the inlet 41a, so that smooth exhaust of the second exhaust channel 2a toward the outlet check valve 4 is realized, and meanwhile, the third communication channel 1c is formed on the upper cover 1, and the third communication channel 1c is not easily interfered with the second exhaust channel 2a, which is beneficial to simplifying the structure of the airbag 2 and facilitating the formation of the third communication channel 1 c. Wherein the third communicating channel 1c is provided around the fitting post 42 so as to ensure effective communication of the third communicating channel 1c with the inlet 41 a.

It is understood that the third communication passage 1c may be provided around the fitting post 42 for one full turn (as shown in fig. 3 to 5) or less than one full turn around the fitting post 42, and communication between the second exhaust passage 2a and the inlet 41a is ensured.

It should be noted that "the upper cover 1 participates in defining the third communicating channel 1 c" may include that the third communicating channel 1c is defined only by the upper cover 1, or the third communicating channel 1c may be defined by the upper cover 1 together with other components, for example, the third communicating channel 1c may be defined by the upper cover 1 and the airbag 2 together. For example, in the example of fig. 1, 3 and 6, the third communication passage 1c is formed by recessing a portion of a surface of a side of the upper cover 1 facing the airbag 2 such that the side of the third communication passage 1c facing the airbag 2 is disposed to be open, the airbag 2 is fixedly connected to the upper cover 1, and the airbag 2 closes the open side of the third communication passage 1c such that the airbag 2 and the upper cover 1 together define the third communication passage 1c, thereby facilitating the molding of the third communication passage 1 c.

For example, in the example of fig. 1 and 3 to 6, a side surface of the upper cover 1 facing the airbag 2 has a fitting protrusion 11, and the fitting protrusion 11 may be formed by protruding from the side surface of the upper cover 1 facing the airbag 2, and the fitting protrusion 11 protrudes into the second exhaust passage 2a to cover a portion of the second exhaust passage 2a, facilitating quick assembly of the upper cover 1 with the airbag 2. The side surface of the matching protrusion 11 facing the airbag 2 has a guiding inclined surface 11a, the guiding inclined surface 11a is located at the radial inner side of the matching protrusion 11, and the guiding inclined surface 11a extends from outside to inside in an inclined manner toward the direction close to the center of the second exhaust channel 2a, so as to better guide and buffer the airflow and keep the airflow flowing stably.

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".

Further, as shown in fig. 3 and 5, one end of the third communication passage 1c penetrates the outer peripheral edge of the fitting projection 11 so that the fitting projection 11 does not completely cover the second exhaust passage 2a, and the other end of the third communication passage 1c is disposed around the fitting post 42 for one full turn.

For example, in the example of fig. 3 to 11, the number of the third communication passage 1c, the airbag chamber 21, the gas outlet check valve 4, and the first communication passage 3a is three, and the gas flow in each second gas discharge passage 2a flows to the corresponding gas outlet check valve 4 through the corresponding third communication passage 1c and to the second communication passage 2c through the corresponding first communication passage 3a until the upper cover 1 is discharged through the first gas discharge passage 1 a.

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, 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);

an airbag (2) defining a second exhaust passage (2a) therein, the airbag (2) being formed with a communication port (2b) communicating the first exhaust passage (1a) and the second exhaust passage (2 a);

give vent to anger check valve (4), it establishes to give vent to anger check valve (4) intercommunication mouth (2b) department, and include valve block (41) and cooperation post (42), valve block (41) form tube-shape structure and integrated into one piece in the border of intercommunication mouth (2b), the axial both ends of valve block (41) form import (41a) and export (41b) respectively, cooperation post (42) are followed import (41a) orientation the direction of export (41b) closely insert join in valve block (41) are inboard, so that give vent to anger check valve (4) will air current guide in second exhaust passage (2a) first exhaust passage (1 a).

2. The air pump (100) of claim 1, wherein the valve plate (41) comprises a first matching portion (411) and a second matching portion (412) which are sequentially arranged along an axial direction of the valve plate (41), the first matching portion (411) is located between the inlet (41a) and the second matching portion (412), an inner peripheral wall of the first matching portion (411) and an outer peripheral wall of the matching column (42) are arranged at intervals, and the second matching portion (412) is in transition fit or interference fit with the matching column (42).

3. The air pump (100) of claim 2, wherein the cross-sectional area of the first fitting portion (411) is gradually reduced and the cross-sectional area of the second fitting portion (412) is gradually reduced or kept constant along the direction from the inlet (41a) to the outlet (41 b).

4. Air pump (100) according to claim 3,

the first matching part (411) is of a conical cylindrical structure, and the second matching part (412) is of a straight cylindrical structure; alternatively, the first and second electrodes may be,

the first fitting portion (411) and the second fitting portion (412) are both tapered cylindrical structures.

5. The air pump (100) of any of claims 1-4, further comprising:

mounting seat (3), mounting seat (3) are established gasbag (2) the dorsad one side of upper cover (1), valve block (41) certainly intercommunication mouth (2b) orientation mounting seat (3) extend, cooperation post (42) set firmly in upper cover (1) and orientation mounting seat (3) extend.

6. Air pump (100) according to claim 5, characterized in that the mating post (42) is integrally formed to the upper cover (1).

7. The air pump (100) according to claim 5, wherein the mounting seat (3) participates in defining a first communication passage (3a) to communicate the outlet (41b) and the first exhaust passage (1a), and a second communication passage (2c) is defined inside the air bag (2) to communicate the first communication passage (3a) and the first exhaust passage (1 a).

8. The air pump (100) of claim 7, wherein the outlet check valve (4) is plural and arranged at intervals along the circumferential direction of the upper cover (1), the first communication channel (3a) is plural and communicated with the second communication channel (2c), and each of the first communication channels (3a) is arranged corresponding to one outlet check valve (4) and extends along the radial direction of the upper cover (1).

9. The air pump (100) of claim 8, wherein the air bag (2) has a plurality of deformable air bag chambers (21), the plurality of air bag chambers (21) being arranged at intervals along a circumferential direction of the upper cover (1), each of the air bag chambers (21) defining one of the second air discharge passages (2 a).

10. The air pump (100) according to claim 5, wherein the upper cover (1) participates in defining a third communication passage (1c), the third communication passage (1c) communicating the second exhaust passage (2a) and the inlet (41a), the third communication passage (1c) being provided around the fitting post (42).

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