CN216241183U - Air pump - Google Patents

Abstract

The utility model discloses an air pump which comprises an upper cover and an air bag, wherein a first exhaust channel is defined in the upper cover, an air outlet is formed at one end of the first exhaust channel, the upper cover is also involved in defining a second exhaust channel and a third exhaust channel which are arranged at intervals, the second exhaust channel is communicated with the first exhaust channel, the air bag is arranged on one axial side of the upper cover, a fourth exhaust channel is defined in the air bag, the air bag is also involved in defining a first communication channel, and the fourth exhaust channel is communicated with the first communication channel through the third exhaust channel and is communicated with the second exhaust channel through the first communication channel. The air pump disclosed by the utility model has the advantages of lower working noise and good sound quality.

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 produces the noise easily in the course of the work, influences user's use and experiences.

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 low in working noise and has good sound quality.

An air pump according to an embodiment of the present invention includes: the upper cover is internally provided with a first exhaust channel, an air outlet is formed at one end of the first exhaust channel, the upper cover is also used for defining a second exhaust channel and a third exhaust channel which are arranged at intervals, and the second exhaust channel is communicated with the first exhaust channel; the gasbag, the gasbag is established axial one side of upper cover, inject the fourth exhaust passage in the gasbag, the gasbag still participates in injecing the first intercommunication passageway, the fourth exhaust passage through the third exhaust passage with first intercommunication passageway intercommunication, and through first intercommunication passageway with second exhaust passage intercommunication.

According to the air pump provided by the embodiment of the utility model, the second exhaust channel and the third exhaust channel which are arranged at intervals are arranged on the upper cover, the second exhaust channel is communicated with the first exhaust channel, the fourth exhaust channel on the air bag is communicated with the first communication channel through the third exhaust channel, the fourth exhaust channel is communicated with the second exhaust channel through the first communication channel, and the air flow flows from the fourth exhaust channel to the first exhaust channel and needs to sequentially flow through the third exhaust channel, the first communication channel and the second exhaust channel, so that the flow path of the air flow is convenient to prolong, the flow path of the air flow is complicated, the noise loss is favorably increased, the flow noise of the air flow and the whole noise of the air pump are reduced, meanwhile, a longer air flow path can provide a larger buffer space for the air, the air flow is more stable, and the working noise of the air pump is further reduced, the sound quality of the air pump is improved.

In some embodiments, the air pump further comprises: and the air outlet one-way valve is arranged between the first exhaust channel and the fourth exhaust channel.

In some embodiments, the air outlet one-way valve is arranged at the inlet and/or the outlet of the first communication channel.

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

In some embodiments, the first communication passage is provided in plurality and at intervals in a circumferential direction of the upper cover, each of the first communication passages communicates with one of the second exhaust passages, and each of the second exhaust passages extends to the first exhaust passage in a radial direction of the upper cover.

In some embodiments, the airbag has a plurality of deformable airbag cavities, a plurality of the airbag cavities are arranged along the circumferential direction of the upper cover at intervals, each of the airbag cavities defines one of the fourth exhaust passages, a side surface of the upper cover facing the airbag has a matching protrusion, the third exhaust passage penetrates through the peripheral edge of the matching protrusion, the matching protrusion extends into the fourth exhaust passage, and a side surface of the airbag facing the matching protrusion has a guiding inclined surface, and the guiding inclined surface extends from outside to inside and faces a direction close to the fourth exhaust passage.

In some embodiments, a first communication port and a second communication port are formed at two ends of the first communication channel, respectively, the first communication port and the second communication port are formed on the airbag, the first communication port and the outlet of the third exhaust channel are arranged opposite to each other in the axial direction of the upper cover, and the second communication port and the inlet of the second exhaust channel are arranged opposite to each other in the axial direction of the upper cover.

In some embodiments, the first communication port and the second communication port extend through the balloon, 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 air pump further comprises: the air outlet one-way valve is arranged at the edge of the second communication port, covers a part of the second communication port and covers the outlet of the second communication channel.

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 passage 1a, an air outlet 1b, a second exhaust passage 1c, a third exhaust passage 1d,

A fitting projection 11, a guide slope 11a,

An air bag 2,

A fourth 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,

An air outlet one-way valve 4,

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 and 3, the air pump 100 includes an upper cover 1, the upper cover 1 defining a first exhaust passage 1a therein, one end of the first exhaust passage 1a forming an air outlet 1 b; the upper cover 1 also participates in defining a second exhaust passage 1c and a third exhaust passage 1d, the second exhaust passage 1c and the third exhaust passage 1d are arranged at intervals, wherein the second exhaust passage 1c is communicated with the first exhaust passage 1a, and then the second exhaust passage 1c is communicated with the first exhaust passage 1a directly or indirectly.

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.

As shown in fig. 1 and 6, the air pump 100 further includes an air bag 2, the air bag 2 is disposed on one side of the upper cover 1 in the axial direction, a fourth exhaust passage 2a is defined in the air bag 2, the air bag 2 further participates in defining a first communication passage 2b, the fourth exhaust passage 2a communicates with the first communication passage 2b through a third exhaust passage 1d, and the fourth exhaust passage 2a communicates with the second exhaust passage 1c through the first communication passage 2b, so that the flow path of the air flow is: the fourth exhaust passage 2a → the third exhaust passage 1d → the first communication passage 2b → the second exhaust passage 1c → the first exhaust passage 1a (for example, an arrow shown in fig. 1 is used to indicate a flow direction of the air flow), it is apparent that the third exhaust passage 1d is located upstream of the first communication passage 2b, the third exhaust passage 1d and the first communication passage 2b are both located upstream of the second exhaust passage 1c, and the air flow flowing from the fourth exhaust passage 2a to the first exhaust passage 1a needs to sequentially flow through the third exhaust passage 1d, the first communication passage 2b and the second exhaust passage 1c, so as to extend the flow path of the air flow, complicate the flow path of the air flow without excessively complicating the structure of the air pump 100, contribute to increase noise loss, thereby reducing flow noise of the air flow and overall noise of the air pump 100, meanwhile, the longer airflow flow path can provide a larger buffer space for the air, so that the airflow flows more stably, the working noise of the air pump 100 is further reduced, and the sound quality of the air pump 100 is improved.

It should be noted that "the upper cover 1 participates in defining the second exhaust passage 1c and the third exhaust passage 1 d", for the second exhaust passage 1c, the second exhaust passage 1c may be defined by the upper cover 1 alone, or may be defined by the upper cover 1 together with other components, for example, the second exhaust passage 1c may be defined by the upper cover 1 and the airbag 2 together; as for the third exhaust passage 1d, the third exhaust passage 1d may be defined by the upper cover 1 alone, or may be defined by the upper cover 1 in combination with other components, for example, the third exhaust passage 1d may be defined by the upper cover 1 and the airbag 2 in combination.

For example, in the example of fig. 3, the second exhaust 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 second exhaust passage 1c facing the airbag 2 is disposed to be open, the airbag 2 is fixedly connected to the upper cover 1 such that the airbag 2 closes the open side of the second exhaust passage 1c, and the airbag 2 and the upper cover 1 together define the second exhaust passage 1c, facilitating the molding of the second exhaust passage 1 c; the third exhaust passage 1d is formed by recessing a portion of a surface of the upper cover 1 on a side facing the airbag 2 such that the side of the third exhaust passage 1d facing the airbag 2 is disposed open, and the airbag 2 closes the open side of the third exhaust passage 1d, the airbag 2 and the upper cover 1 together define the third exhaust passage 1 d.

According to the air pump 100 of the embodiment of the utility model, the second exhaust channel 1c and the third exhaust channel 1d are arranged on the upper cover 1 at intervals, the second exhaust channel 1c is communicated with the first exhaust channel 1a, the fourth exhaust channel 2a on the airbag 2 is communicated with the first communication channel 2b through the third exhaust channel 1d, and the fourth exhaust channel 2a is communicated with the second exhaust channel 1c through the first communication channel 2b, the air flow flowing from the fourth exhaust channel 2a to the first exhaust channel 1a needs to flow through the third exhaust channel 1d, the first communication channel 2b and the second exhaust channel 1c in sequence, so that the flow path of the air flow is prolonged, the flow path of the air flow is complicated, the noise loss is increased, the flow noise of the air flow and the overall noise of the air pump 100 are reduced, and meanwhile, a longer air flow path can provide a larger buffer space for the air, make the air current flow more steady to further reduce the noise at work of air pump 100, promote the sound quality of air pump 100, and then promoted user experience effect.

In some embodiments, as shown in fig. 1 and fig. 6, the air pump 100 further includes an air outlet check valve 4, and the air outlet check valve 4 is disposed between the first exhaust channel 1a and the fourth exhaust channel 2a, so that the air outlet check valve 4 can limit the flow direction of the air flow to avoid backflow of the air flow, and ensure that the air flow flows from the fourth exhaust channel 2a to the first exhaust channel 1a, so as to avoid mixed flow of the air flow in the air pump 100, and ensure the working efficiency of the air pump 100.

In some embodiments, as shown in fig. 1 and 6, outlet check valve 4 is provided at the inlet and/or outlet of first communication channel 2 b. It should be noted that in the description of the present application, "and/or" is meant to include three parallel schemes, and taking "a and/or B" as an example, the scheme includes a scheme, or B scheme, or a scheme satisfied by both a and B. The setting of outlet check valve 4 may include the following schemes: 1. an air outlet one-way valve 4 is arranged at the inlet of the first communication channel 2 b; 2. an outlet one-way valve 4 is arranged at the outlet of the first communication channel 2 b; 3. the inlet and the outlet of the first communication channel 2b are respectively provided with an air outlet one-way valve 4.

Of course, the air outlet check valve 4 can be arranged at other positions.

In some embodiments, as shown in fig. 6, the air outlet check valve 4 is integrally formed on the airbag 2, for example, the air outlet check valve 4 is integrally formed on the edge of the inlet of the first communicating channel 2b and/or the edge of the outlet of the first communicating channel 2b, so that the assembly process of the air outlet check valve 4 and the airbag 2 can be saved, the forming of the air outlet check valve 4 is facilitated, the processing cost is reduced, meanwhile, the connection reliability of the air outlet check valve 4 and the airbag 2 is ensured, and the reliable use of the air outlet check valve 4 is ensured.

In some embodiments, as shown in fig. 2, 3 and 5, the first communication passage 2b is plural, and the plural first communication passages 2b are provided at intervals in the circumferential direction of the upper cover 1, each first communication passage 2b communicates with one second exhaust passage 1c, and each second exhaust passage 1c extends to the first exhaust passage 1a in the radial direction of the upper cover 1.

For example, if there is one first exhaust passage 1a, it is convenient for a plurality of second exhaust passages 1c to converge on the same first exhaust passage 1a, so that the air flow passing through the plurality of second exhaust passages 1c can be exhausted out of the upper cover 1 through the same first exhaust passage 1 a; here, the first exhaust passage 1a may be formed at a central position of the upper cover 1, for example, a central axis of the first exhaust passage 1a coincides with a central axis 10 of the upper cover 1.

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.

In some embodiments, as shown in fig. 4-6, 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 fourth exhaust channel 2a, the pressing of the airbag cavity 21 can exhaust the airflow in the fourth exhaust channel 2a to the third exhaust channel 1d, 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 fourth 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 fourth exhaust passages 2a sequentially exhaust towards the third exhaust passage 1d, thereby facilitating the realization of continuous exhaust of the air pump 100 and ensuring stable exhaust of the air pump 100.

For example, in the example of fig. 1 and 4-6, a partition 22 is provided in the airbag cavity 21 to divide the internal space of the airbag cavity 21 into a fourth exhaust passage 2a and a mounting cavity 2e, and the link assembly 52 of the air pump 100 may be mounted in the mounting 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 fourth 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 fourth exhaust channel 2a is reduced, due to the limitation of the one-way valve plate 23, air flow in the fourth exhaust channel 2a is exhausted to the third exhaust channel 1d, when the air bag cavity 21 is released by the connecting rod assembly 52, the space in the fourth exhaust channel 2a is increased, and the air flow at the air inlet hole pushes the one-way valve plate 23 open to flow to the fourth exhaust channel 2 a.

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

As shown in fig. 1, 3 and 4, a side surface of the upper cover 1 facing the airbag 2 has a fitting protrusion 11, the fitting protrusion 11 may be formed by protruding a side surface of the upper cover 1 facing the airbag 2, the third exhaust channel 1d penetrates through an outer circumferential edge of the fitting protrusion 11, the fitting protrusion 11 extends into the fourth exhaust channel 2a, and the fitting protrusion 11 may not completely block the fourth exhaust channel 2a, thereby facilitating the rapid assembly of the upper cover 1 and the airbag 2. The side surface of the matching protrusion 11 facing the airbag 2 has a guiding inclined surface 11a, and the guiding inclined surface 11a extends from outside to inside toward the direction close to the fourth exhaust channel 2a, so that the guiding inclined surface 11a can better guide and buffer the airflow discharged from the fourth 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".

For example, in the example of fig. 2 and 3, the airbag chambers 21 and the third exhaust passages 1d are three, respectively, and the fourth exhaust passages 2a are also three, each of the fourth exhaust passages 2a communicating with the corresponding first communication passage 2b through the corresponding third exhaust passage 1 d. Here, the first communication passage 2b may be plural, and each of the first communication passages 2b communicates with one of the third exhaust passages 1 d.

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

In some embodiments, as shown in fig. 1, 2, 3 and 6, the first communication port 2c and the second communication port 2d are formed at both ends of the first communication channel 2b, respectively, the first communication port 2c and the second communication port 2d are formed on the airbag 2, the first communication port 2c is disposed opposite to an outlet of the third exhaust channel 1d in the axial direction of the upper cover 1, so that the gas flow in the third exhaust channel 1d can flow to the first communication channel 2b through the first communication port 2c, and the second communication port 2d is disposed opposite to an inlet of the second exhaust channel 1c in the axial direction of the upper cover 1, so that the gas flow in the first communication channel 2b flows to the second exhaust channel 1c through the second communication port 2d, so as to ensure that the first communication channel 2b effectively communicates the third exhaust channel 1d and the second exhaust channel 1 c.

In some embodiments, as shown in fig. 1, 2, 6, and 9, 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 2d, then the first communicating port 2c may be formed as an inlet of the first communicating passage 2b, and the second communicating port 2d may be formed as an outlet of the first communicating passage 2 b. 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. 9 and 10, 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 mount 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.

As shown in fig. 1, 9 and 10, the mounting seat 3 is further formed with mounting through holes 3b, the mounting through holes 3b penetrate 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 holes 3b, and the airbag cavity 21 extends out of one side of the mounting through holes 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 second communicating channel 3a is located between adjacent two 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.

In some embodiments, as shown in fig. 6, the air pump 100 further includes an air outlet check valve 4, the air outlet check valve 4 is disposed at the edge of the second communication port 2d, the air outlet check valve 4 covers a part of the second communication port 2d, and the air outlet check valve 4 covers the outlet of the second communication channel 3a, so that the outlet of the second communication channel 3a is disposed in a staggered manner with respect to the second communication port 2d, and the air flow at the outlet of the second communication channel 3a pushes open the air outlet check valve 4 and flows to the second air discharge channel 1c through the second communication port 2d, thereby ensuring communication between the second communication channel 3a and the second air discharge channel 1 and unidirectional flow of the air flow.

Alternatively, in the example of fig. 6 and 7, the air outlet check valve 4 is formed in a plate-shaped structure, and the air outlet check valve 4 is integrally formed at the edge of the second communication port 2d, that is, the air outlet check valve 4 is integrally formed with the edge portion of the second communication port 2d, so that the assembly process of the air outlet check valve 4 and the airbag 2 can be saved, the forming of the air outlet check valve 4 is facilitated, the processing cost is reduced, meanwhile, the connection reliability of the air outlet check valve 4 and the airbag 2 is ensured, and the reliable use of the air outlet check valve 4 is ensured.

Of course, outlet check valve 4 may be provided at the edge of first communication port 2 c.

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), an air outlet (1b) is formed at one end of the first exhaust channel (1a), the upper cover (1) also participates in defining a second exhaust channel (1c) and a third exhaust channel (1d) which are arranged at intervals, and the second exhaust channel (1c) is communicated with the first exhaust channel (1 a);

the air bag (2), the air bag (2) is arranged on one side of the upper cover (1) in the axial direction, a fourth 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 fourth exhaust channel (2a) is communicated with the first communication channel (2b) through the third exhaust channel (1d) and is communicated with the second exhaust channel (1c) through the first communication channel (2 b).

2. The air pump (100) of claim 1, further comprising:

an air outlet one-way valve (4), wherein the air outlet one-way valve (4) is arranged between the first exhaust channel (1a) and the fourth exhaust channel (2 a).

3. Air pump (100) according to claim 2, wherein the air outlet one-way valve (4) is provided at the inlet and/or outlet of the first communication channel (2 b).

4. Air pump (100) according to claim 3, wherein the outlet check valve (4) is integrally formed with the air bag (2).

5. The air pump (100) according to claim 1, wherein the first communication passage (2b) is plural and arranged at intervals in a circumferential direction of the upper cover (1), each of the first communication passages (2b) communicates with one of the second exhaust passages (1c), and each of the second exhaust passages (1c) extends to the first exhaust passage (1a) in a radial direction of the upper cover (1).

6. The air pump (100) of claim 1, 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 the circumferential direction of the upper cover (1), each air bag chamber (21) defining one of the fourth exhaust passages (2a),

upper cover (1) orientation one side surface of gasbag (2) has cooperation arch (11), third exhaust passage (1d) runs through the periphery edge of cooperation arch (11), cooperation arch (11) stretch into fourth exhaust passage (2a), just the orientation of cooperation arch (11) one side surface of gasbag (2) has guide inclined plane (11a), guide inclined plane (11a) outside-in, orientation are close to the direction of fourth exhaust passage (2a) extends.

7. The air pump (100) according to any one of claims 1 to 6, wherein a first communication port (2c) and a second communication port (2d) are formed at both ends of the first communication passage (2b), respectively, the first communication port (2c) and the second communication port (2d) are formed on the air bag (2), the first communication port (2c) is disposed opposite to an outlet of the third exhaust passage (1d) in an axial direction of the upper cover (1), and the second communication port (2d) is disposed opposite to an inlet of the second exhaust passage (1c) in the axial direction of the upper cover (1).

8. The air pump (100) of claim 7, wherein the first communication port (2c) and the second communication port (2d) 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 formed with a second communication channel (3a), two ends of the second communication channel (3a) are respectively communicated to the first communication port (2c) and the second communication port (2d), and the second communication channel (3a) and the first communication port (2c) and the second communication port (2d) jointly define the first communication channel (2 b).

9. Air pump (100) according to claim 8, characterized in that the side of the second communication channel (3a) facing the airbag (2) is open.

10. The air pump (100) of claim 8, further comprising:

the air outlet one-way valve (4) is arranged at the edge of the second communication port (2d), and the air outlet one-way valve (4) covers a part of the second communication port (2d) and covers the outlet of the second communication channel (3 a).

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