CN216198870U - 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 air bag is arranged on one side of the upper cover in the axial direction and is provided with a deformable air bag cavity, a second exhaust channel is defined in the air bag cavity and is communicated with the first exhaust channel through a turn-back channel, the direction of air flow in the first exhaust channel is consistent with the direction of air flow in the second exhaust channel in the axial direction of the upper cover, a matching bulge is arranged on the surface of one side of the upper cover, which faces the air bag, extends into the second exhaust channel, and a guide surface is arranged on the surface of one side, which faces the air bag, of the matching bulge. 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.

Disclosure of Invention

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 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 gasbag, the gasbag is established axial one side of upper cover, and deformable gasbag chamber has, second exhaust passage is injectd to the gasbag chamber, second exhaust passage with first exhaust passage is through the passageway intercommunication of turning back in the axial of upper cover, air current direction in the first exhaust passage with air current direction in the second exhaust passage is unanimous, wherein, a side surface of upper cover towards the gasbag has the cooperation arch, the cooperation arch stretches into second exhaust passage, just the bellied orientation of cooperation a side surface of gasbag has the guide surface.

According to the air pump provided by the embodiment of the utility model, the second exhaust channel is communicated with the first exhaust channel through the turn-back channel, so that the air flow is conveniently turned back for multiple times in the process of flowing from the second exhaust channel to the first exhaust channel through the turn-back channel, the flow path of the air flow is conveniently prolonged, the flow path of the air flow is complicated, the flow noise of the air flow is reduced, and the air flow is more stable; through setting up the guide surface, can further guide, buffering air current to promote air current flow stability, further reduce noise at work.

In some embodiments, the guide surface is planar and extends from the outside to the inside, towards a direction proximate to the second exhaust passage.

In some embodiments, the turning-back channel includes a first turning-back channel and a second turning-back channel, the first turning-back channel is located on an upstream side of the second turning-back channel in an airflow direction, a first communicating port and a second communicating port which are through are formed in the airbag, the first communicating port communicates with the first turning-back channel and the second turning-back channel, and the second communicating port communicates with the second turning-back channel and the first exhaust channel, so that airflow is turned back from the second exhaust channel to the first communicating port through the first turning-back channel and from the first communicating port to the second communicating port through the second turning-back channel.

In some embodiments, the air pump further comprises: the first one-way valve of giving vent to anger is established first communication port department is in order to cover a part of first communication port, perhaps, the one-way valve of giving vent to anger is established second communication port department covers a part of second communication port.

In some embodiments, the first outlet check valve includes a valve plate and a matching column, the valve plate is formed into a cylindrical structure and is integrally formed at the edge of the first communication port or the edge of the second communication port, an airflow inlet and an airflow outlet are respectively formed at two axial ends of the valve plate, and the matching column is tightly inserted and matched inside the valve plate along the direction from the airflow inlet to the airflow outlet.

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 airflow 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 first outlet check valve is disposed at the first communication port, and the fitting pillar is integrally formed on the upper cover.

In some embodiments, the air pump further comprises: and the second air outlet one-way valve is fixedly arranged on the upper cover so as to shield the second communication port.

In some embodiments, the first exhaust passage has an exhaust cavity, the second communication port communicates to the exhaust cavity, the second 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 passage and the second communication port are respectively plural, the upper cover is formed with plural first communication passages, an outlet of each of the first communication passages penetrates a wall surface of the exhaust chamber, and each of the first communication passages communicates with one of the second communication ports.

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 upper cover participates in limiting the first turning channel, and the mounting seat participates in limiting the second turning channel.

In some embodiments, the upper cover further participates in defining a second communication passage that is provided at a distance from the first returning passage and communicates the second communication port and the first exhaust passage.

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

FIG. 6 is a cross-sectional view of the air bag and pusher head shown in FIG. 2;

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

FIG. 8 is a cross-sectional view of the mount shown in FIG. 7;

FIG. 9 is a cross-sectional view of an air pump according to another embodiment of the present invention;

FIG. 10 is an exploded view of the air pump shown in FIG. 9;

FIG. 11 is a schematic view of the upper cover shown in FIG. 10;

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

FIG. 13 is a schematic view of the bladder shown in FIG. 10;

FIG. 14 is a cross-sectional view of the air bag and pusher head shown in FIG. 10;

FIG. 15 is a schematic view of the mount shown in FIG. 10;

FIG. 16 is a cross-sectional view of the mount shown in FIG. 15;

FIG. 17 is a sectional view of an air pump according to still another embodiment of the present invention;

FIG. 18 is an exploded view of the air pump shown in FIG. 17;

FIG. 19 is a cross-sectional view of the first outlet check valve and first cover shown in FIG. 18;

FIG. 20 is a schematic view of the first cover shown in FIG. 19;

FIG. 21 is a schematic view of the bladder shown in FIG. 18;

FIG. 22 is another schematic view of the bladder shown in FIG. 21;

FIG. 23 is a cross-sectional view of the bladder shown in FIG. 21;

fig. 24 is a schematic view of the mount shown in fig. 18.

Reference numerals:

an air pump 100, a return path 100a,

An upper cover 1, a central axis 10,

A first exhaust passage 1a, an air outlet 1b, a first return passage 1c,

A first communicating passage 1d, an exhaust chamber 1e, a second communicating passage 1f,

A first cover body 11, a mounting hole 110, a matching protrusion 111, a guide surface 111a, a second cover body 12,

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

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

A mounting seat 3, a second return channel 3a, a mounting through hole 3b,

A first air outlet one-way valve 4A, a second air outlet one-way valve 4B,

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

A fitting column 42, a mounting portion 43, a first abutting portion 431, a second abutting portion 432, a valve plate portion 44,

The device comprises a driving device 5, a driver 51, a connecting rod assembly 52, an eccentric wheel 521, a connecting rod 522, a push head 523 and 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, 9 and 17, the air pump 100 includes an upper cover 1 and an airbag 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 airbag 2 is disposed at one side of the upper cover 1 in the axial direction, and the airbag 2 has a deformable airbag chamber 21, the airbag chamber 21 defines a second exhaust passage 2a, the second exhaust passage 2a communicates with the first exhaust passage 1a through a turn-back passage 100a, so that after the air flow enters the second exhaust passage 2a, the air flow can turn back through the turn-back passage 100a to flow into the first exhaust passage 1a and leave the upper cover 1 through the air outlet 1 b.

Wherein, in the axial of upper cover 1, the air current direction in first exhaust passage 1a is unanimous with the air current direction in the second exhaust passage 2a, make the air current flow to first exhaust passage 1a through turn-back passageway 100a from second exhaust passage 2a in-process, take place to turn back many times, thereby be convenient for prolong the flow path of air current, make the flow path of air current complicated, be favorable to increasing the noise loss, thereby reduce the flow noise of air current and the whole noise of air pump 100, longer air current flow path can provide great buffer space for the gas simultaneously, make the air current flow more steady, thereby further reduce the operating noise of air pump 100, promote the sound quality of air pump 100.

For example, in the example of fig. 1, in the axial direction of the upper cover 1, both the direction of the air flow in the first exhaust passage 1a and the direction of the air flow in the second exhaust passage 2a are from the bottom to the top.

It should be noted that "the air outlet 1b of the upper cover 1" is referred to as air outlet of the upper cover 1, that is, the air flowing into the first air exhaust channel 1a is exhausted out of 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 air pump 100 as a whole.

As shown in fig. 1, 9 and 17, 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 portion of the side surface of the upper cover 1 facing the airbag 2, the fitting protrusion 111 may be spaced from the first exhaust channel 1a, the fitting protrusion 111 extends into the second exhaust channel 2a, and the fitting protrusion 111 may be fitted with a wall surface of the second exhaust channel 2a, so as to facilitate rapid positioning and assembling of the upper cover 1 and the airbag 2. The surface of the side of the matching protrusion 111 facing the airbag 2 has a guiding surface 111a, so that the guiding surface 111a can perform good guiding and buffering functions on the airflow in the second exhaust channel 2a, improve the airflow flowing stability, and facilitate reducing the operating noise of the air pump 100.

Therefore, according to the air pump 100 of the embodiment of the utility model, the second exhaust channel 2a is communicated with the first exhaust channel 1a through the return channel 100a, so that the air flow is repeatedly returned in the process of flowing from the second exhaust channel 2a to the first exhaust channel 1a through the return channel 100a, the flow path of the air flow is prolonged, the flow path of the air flow is complicated, the flow noise of the air flow is reduced, and the air flow is more stable; by arranging the guide surface 111a, the air flow can be further guided and buffered, so that the flow stability of the air flow is improved, and the working noise is further reduced.

In some embodiments, as shown in fig. 1, 9 and 17, the guiding surface 111a is a plane, and the guiding surface 111a extends from outside to inside toward the direction close to the second exhaust channel 2a, so that the guiding surface 111a forms a larger angle with the airflow direction in the second exhaust channel 2a, so as to ensure the buffering effect of the guiding surface 111 a.

For example, the push head of the push rod assembly of the air pump 100 cooperates with the air bag 2 to squeeze and release the air bag 2, and the guide surface 111a may be substantially parallel to the upper surface of the push head 523 when the push head 523 is at the limit position of squeezing the air bag 2.

Note that the direction "outer" refers to a direction away from the central 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"; the axial direction of the upper cover 1 is the extending direction of the central axis 10 of the upper cover 1, and the circumferential direction of the upper cover 1 is the direction around the central axis 10 of the upper cover 1.

Of course, the present application is not so limited; for example, the guide surface 111a may also be formed as a curved surface.

It is understood that at least a part of the lower surface of the fitting projection 111 is formed as the guide surface 111a, that is, a part of the lower surface of the fitting projection 111 is formed as the guide surface 111a, or the entire lower surface of the fitting projection 111 is formed as the guide surface 111 a; when a portion of the lower surface of the fitting projection 111 is formed as the guide surface 111a, the guide surface 111a may be located on a side of the fitting projection 111 close to the central axis 10 of the upper cover 1.

In some embodiments, as shown in fig. 1 to 3, 9 to 11, and 17 to 20, the folding channel 100a includes a first folding channel 1c and a second folding channel 3a, the first folding channel 1c is located on an upstream side of the second folding channel 3a in the gas flow direction, and the first folding channel 1c communicates with the second exhaust channel 2a, a first communicating port 2c and a second communicating port 2d are formed through the airbag 2, the first communicating port 2c is provided at a distance from the second communicating port 2d, the first communicating port 2c communicates with the first folding channel 1c and the second folding channel 3a, the second communicating port 2d communicates with the second folding channel 3a and the first exhaust channel 1a, so that the gas flow is folded from the second exhaust channel 2a to the first communicating port 2c through the first folding channel 1c, and the gas flow is folded from the second communicating port 2c to the second communicating port 2d through the second folding channel 3a, the first returning path 1c returns the airflow once, and the second returning path 3a also returns the airflow once, and the airflow direction at the first communication port 2c is substantially opposite to the airflow direction in the first exhaust path 1a, and the airflow direction at the second communication port 2d is substantially the same as the airflow direction in the first exhaust path 1 a. Therefore, on the premise that the structure of the air pump 100 is not excessively complicated, the airflow flow path is complicated, the working noise of the air pump 100 is reduced, and the airflow stability is improved.

For example, in the example of fig. 1 to 3, 9 to 11, and 17 to 20, the second exhaust passage 2a is plural, the first exhaust passage 1a is one, the first returning passage 1c and the second returning passage 3a are plural, and each of the second exhaust passages 2a corresponds to one of the first returning passage 1c and one of the second returning passage 3a, so that the airflow in the second exhaust passage 2a can flow to the first exhaust passage 1a sequentially through the corresponding first returning passage 1c and the second returning passage 3 a. In this case, the first communication port 2c is plural, each of the first communication ports 2c corresponds to one of the second exhaust passages 2a, the second communication port 2d may be one (as shown in fig. 1 to 3) or plural (as shown in fig. 9 to 11 and 17 to 20), and when the second communication port 2d is plural, each of the second communication ports 2d may correspond to one of the second exhaust passages 2 a.

In some embodiments, as shown in fig. 1, 5 and 6, the air pump 100 further includes a first air outlet check valve 4A, and the first air outlet check valve 4A is disposed at the first communication port 2c to cover a portion of the first communication port 2c, so that the air flow can push open the first air outlet check valve 4A when flowing through the first communication port 2c, thereby ensuring a non-return effect.

Of course, the present application is not so limited; in other embodiments, as shown in fig. 9, 13 and 14, first outlet check valve 4A is provided at second communication port 2d to cover a portion of second communication port 2d, and the air flow can push first outlet check valve 4A open when passing through second communication port 2d, ensuring a non-return effect.

In some embodiments, as shown in fig. 1, 3 and 6, the first outlet check valve 4A includes a valve sheet 41 and a matching column 42, the valve sheet 41 is formed in a cylindrical structure, and the valve sheet 41 can be connected to the first communication port 2c or the second communication port 2d, an air inlet 41a and an air outlet 41b are respectively formed at two axial ends of the valve sheet 41, the air inlet 41a is communicated with the second exhaust channel 2a, the air outlet 41b is communicated with the first exhaust channel 1a, and the matching column 42 is tightly inserted and matched inside the valve sheet 41 along the direction from the air inlet 41a to the air outlet 41b, so that the first outlet check valve 4A can guide the air flow in the second exhaust channel 2a to the first exhaust channel 1a, and the air flow cannot flow reversely flow from the first exhaust channel 1a back to the second exhaust channel 2a, so as to effectively prevent the air flow inside the air pump 100 from being mixed, guarantee air pump 100's work efficiency, simultaneously because cooperation post 42 closely cooperates with valve block 41, when the air current flows to first check valve 4A of giving vent to anger, be convenient for make second exhaust passage 2a flow to first exhaust passage 1 a's air current have certain pressure, then valve block 41 takes place certain deformation under the air current pressure effect, so that the air current passes through from the clearance between valve block 41 and the cooperation post 42, be convenient for guarantee air pump 100's high-low pressure gas tightness, guarantee air pump 100's the pressure of giving vent to anger, and first check valve 4A of giving vent to anger simple structure, the equipment is convenient.

It should be noted that the "cylindrical structure" is to be understood in a broad sense, including but not limited to a cylindrical structure, a polygonal cylindrical structure, a tapered cylindrical structure, a straight cylindrical structure, etc., and the cross-sectional shape of the fitting post 42 may be circular, polygonal, or elliptical, etc.

If the first outlet check valve 4A is arranged at the first communication port 2c, the airflow inlet 41a is communicated with the first returning channel 1c, the airflow outlet 41b is communicated with the second returning channel 3a, and the valve plate 41 is integrally formed at the edge of the first communication port 2c, that is, the valve plate 41 and the edge part of the first communication port 2c are integrally formed; if the first air outlet check valve 4A is disposed at the second communication port 2d, the air inlet 41a is communicated with the second returning channel 3a, the air outlet 41b is communicated with the first exhaust channel 1a, and the valve sheet 41 is integrally formed at the edge of the second communication port 2d, that is, the valve sheet 41 is integrally formed with the edge portion of the second communication port 2 d. Therefore, the assembling process of the valve plate 41 and the air bag 2 can be saved, the forming of the valve plate 41 is facilitated, the processing cost is reduced, the connection reliability of the valve plate 41 and the air bag 2 is ensured, and the use reliability of the valve plate 41 is ensured.

In some embodiments, as shown in fig. 1, the central axis of valve sheet 41 is substantially parallel to central axis 10 of upper cover 1, so that when first outlet check valve 4A is disposed at first communication port 2c, the flow direction of air flowing through first outlet check valve 4A is substantially opposite to the flow direction of air flowing through first exhaust channel 1a, and when first outlet check valve 4A is disposed at second communication port 2d, the flow direction of air flowing through first outlet check valve 4A is substantially the same as the flow direction of air flowing through first exhaust channel 1 a.

In some embodiments, as shown in fig. 1, 3 and 6, the valve plate 41 includes a first matching portion 411 and a second matching portion 412 sequentially arranged along the axial direction of the valve plate 41, the first matching portion 411 is located between the airflow inlet 41a and the second matching portion 412, and the second matching portion 412 is located between the airflow outlet 41b and the first matching 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 air 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 provided between the matching column 42 and the valve plate 41, so that the non-return function of the first air outlet one-way valve 4A is ensured; in addition, because first cooperation portion 411 corresponds with airflow inlet 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 effect to the installation of cooperation post 42, is convenient for promote first outlet check valve 4A's packaging efficiency.

In some embodiments, as shown in fig. 1 and 6, the cross-sectional area of the first matching portion 411 gradually decreases along the direction from the airflow inlet 41a to the airflow outlet 41b, so that the first matching portion 411 and the second matching portion 412 are better connected in transition, and at the same time, the guiding effect of the first matching portion 411 is further improved, and the assembly efficiency of the first matching portion 411 and the matching column 42 is ensured; the cross-sectional area of the second mating portion 412 gradually decreases or remains constant along the direction from the airflow inlet 41a to the airflow outlet 41b, so as to facilitate the transition fit or interference fit of the second mating portion 412 with the mating column 42.

Alternatively, in the example of fig. 6, 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, and of course, the entire valve sheet 41 may be formed into a hollow spherical structure.

Optionally, in the example of fig. 1 and 3, the first air outlet check valve 4A is disposed at the first communication port 2c, and the matching column 42 is integrally formed on the upper cover 1, so that the 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, 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.

Of course, in other embodiments, if the first outlet check valve 4A is provided at the second communication port 2d, the fitting post 42 may be integrally formed with the mounting seat 3 described later.

It is to be understood that the structure of first outlet check valve 4A is not limited thereto; for example, first outlet check valve 4A may be formed in a plate-like structure, in which case first outlet check valve 4A may be integrally formed at the edge of first communication port 2c if first outlet check valve 4A is provided at first communication port 2c (as shown in fig. 17 and 21), and first outlet check valve 4A may be integrally formed at the edge of second communication port 2d if first outlet check valve 4A is provided at second communication port 2 d.

In some embodiments, as shown in fig. 17, the air pump 100 further includes a second air outlet check valve 4B, the second air outlet check valve 4B is fixedly disposed on the upper cover 1 to block the second communication port 2d, so that the air flow at the second communication port 2d pushes the second air outlet check valve 4B open to flow to the first air outlet channel 1a, thereby ensuring the communication between the second communication port 2d and the first air outlet channel 1a and the one-way flow of the air flow, and the air flow is subjected to multiple check-backs on the flow path thereof, which effectively improves the working efficiency of the air pump 100, and meanwhile, as the air flow needs to ensure sufficient pressure when flowing through the first air outlet check valve 4A and the second air outlet check valve 4B, the high-low pressure air tightness of the air pump 100 is improved.

In some embodiments, as shown in fig. 17 and 19, the first exhaust passage 1a has an exhaust chamber 1e, the cross-sectional area of the exhaust chamber 1e is larger than that of the rest of the first exhaust passage 1a, and the second communication port 2d communicates with the exhaust chamber 1e, the second communication port 2d may communicate with the exhaust chamber 1e directly or at an interval; the second check valve 4B of giving vent to anger includes installation department 43 and valve block portion 44, and installation department 43 is installed in upper cover 1 to realize the installation of the second check valve 4B of giving vent to anger, valve block portion 44 locates the axial one end of installation department 43, and valve block portion 44 is located exhaust chamber 1e, then exhaust chamber 1e can provide sufficient setting space and allow the deformation space for valve block portion 44, guarantees that valve block portion 44 uses reliably.

In some embodiments, as shown in fig. 17 to 19, 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 43 has a first abutting portion 431 and a second abutting portion 432, the first abutting portion 431 and the second abutting portion 432 respectively abut against edges of two axial ends of the mounting hole 110, and the first abutting portion 431 and the second abutting portion 432 are clamped at two axial ends of the mounting hole 110 to achieve positioning and mounting of the mounting portion 43; 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 is connected with the second cover body 12, so that the second air outlet one-way valve 4B is convenient to mount, namely the second air outlet one-way valve 4B can be mounted on the first cover body 11 firstly, and then the second cover body 12 is mounted on the first cover body 11.

Alternatively, in the example of fig. 19, the valve sheet portion 44 is configured substantially as a sheet body having a circular arc surface, and the middle portion of the valve sheet portion 44 is protruded toward a direction away from the airbag 2, the valve sheet portion 44 is deformed by the air flow to achieve smooth flow of the air flow.

Of course, the present application is not so limited; in other embodiments, air pump 100 may not need second outlet check valve 4B, and upper cover 1 may be formed as a single piece.

In some embodiments, the number of the second exhaust passages 2a is multiple, and the multiple second exhaust passages 2a may be arranged at intervals along the circumferential direction of the upper cover 1, so that when the air pump 100 operates, the multiple airbag cavities 21 may be sequentially extruded and released, so that the multiple second exhaust passages 2a sequentially exhaust toward the corresponding first turning passages 1c, which is convenient for realizing continuous exhaust of the air pump 100, and ensures stable exhaust of the air pump 100; the second communication port 2d may be plural, and the plural second communication ports 2d may be provided at intervals in the circumferential direction of the mounting hole 110, and each second communication port 2d communicates with the exhaust chamber 1e, respectively.

Wherein, the upper cover 1 is formed with a plurality of first communicating channels 1d, every first communicating channel 1d can extend along the axial of the upper cover 1, the outlet of every first communicating channel 1d runs through the wall surface of the exhaust chamber 1e, so that every first communicating channel 1d is directly communicated with the exhaust chamber 1e, and every first communicating channel 1d is communicated with one second communicating port 2d, so that every second communicating port 2d is communicated with the exhaust chamber 1e through the corresponding first communicating channel 1d, so that the air flow of the second communicating ports 2d can be converged to the exhaust chamber 1e through the first communicating channels 1d, and the valve sheet part 44 covers the first communicating channels 1d simultaneously, so as to realize the non-return effect.

Of course, the present application is not limited to this, and when there are a plurality of second exhaust passages 2a, there may be one second communication port 2d, and in this case, the flow of air in the plurality of second exhaust passages 2a may be converged to one second communication port 2d by the second folded passage 3 a.

In some embodiments, as shown in fig. 1-3, 9-11, and 17-20, 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 upper cover 1 participates in defining the first folding channel 1c, and the first folding channel 1c and the second air discharging channel 2a are respectively formed on different components, so as to ensure that the first folding channel 1c is not easily interfered with the second air discharging channel 2a, and simultaneously, to facilitate simplifying the structure of the airbag 2 and facilitating the forming of the first folding channel 1 c; the mounting seat 3 participates in defining the second returning channel 3a, the second exhaust channel 2a and the first returning channel 1c are formed on different components respectively, interference between the second returning channel 3a and the second exhaust channel 2a and the first returning channel 1c is guaranteed to be not prone to occurring, meanwhile, the structure of the air bag 2 is simplified, and forming of the second returning channel 3a is facilitated.

It should be noted that "the upper cover 1 participates in defining the first folding path 1 c", and may include that the first folding path 1c is only defined by the upper cover 1, or the first folding path 1c is defined by the upper cover 1 together with other components, for example, the first folding path 1c may be defined by the upper cover 1 and the airbag 2 together; likewise, "the mounting seat 3 participates in defining the second returning passage 3 a", which may include that the second returning passage 3a is defined only by the mounting seat 3, or that the second returning passage 3a is defined by the mounting seat 3 together with other components, for example, the second returning passage 3a may be defined by the mounting seat 3 and the airbag 2 together.

For example, in the example of fig. 3, 11 and 20, the first folding path 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 first folding path 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 first folding path 1c, such that the airbag 2 and the upper cover 1 jointly define the first folding path 1c, thereby facilitating the molding of the first folding path 1c and facilitating the processing.

In the example of fig. 7, 15 and 24, the second returning channel 3a is formed by recessing a portion of a surface of one side of the mounting seat 3 facing the airbag 2, such that the side of the second returning channel 3a facing the airbag 2 is open, the airbag 2 is fixedly connected with the fixing seat 3, and the airbag 2 closes the open side of the second returning channel 3a, such that the airbag 2 and the fixing seat 3 jointly define the second returning channel 3a, thereby facilitating the forming and processing of the second returning channel 3 a.

Optionally, in the example of fig. 3, the upper cover 1 participates in defining the first folding channel 1c, the first folding channel 1c may penetrate through the outer peripheral edge of the fitting protrusion 111, so that the fitting protrusion 111 does not completely cover the second exhaust channel 2a, the first outlet check valve 4A is disposed at the first communication port 2c, and the first outlet check valve 4A includes the valve sheet 41 and the fitting column 42, the fitting column 42 is fixedly connected with the upper cover 1, and the first folding channel 1c is disposed around the fitting column 42, so as to ensure effective communication between the first folding channel 1c and the airflow inlet 41 a.

It is understood that the first returning path 1c may be provided around the fitting column 42 for a full turn (as shown in fig. 3), or may be provided around the fitting column 42 for less than a full turn, and the communication between the second exhaust path 2a and the first communication port 2c is ensured.

In some embodiments, as shown in fig. 9 to 11, the upper cover 1 further participates in defining a second communication passage 1f, the second communication passage 1f may be formed by a portion of a side surface of the upper cover 1 facing the airbag 2 being recessed, the second communication passage 1f is provided at a spacing from the first returning passage 1c, and the second communication passage 1f communicates the second communication port 2d and the first exhaust passage 1a so that the second communication port 2d and the first exhaust passage 1a indirectly communicate. From this, through setting up second intercommunication passageway 1f, realized the intercommunication of second intercommunication mouth 2d and first exhaust passage 1a, can make simultaneously upper cover 1 be applicable to the condition of second intercommunication mouth 2d and first exhaust passage 1a in the radial dislocation set of upper cover 1, be favorable to promoting the design flexibility of air pump 100.

In the example of fig. 11, the second communication passage 1f is plural, the plural second communication passages 1f are provided at intervals in the circumferential direction of the upper cover 1, and the plural second communication passages 1f converge the air flow at the plural second communication ports 2d into the first exhaust passage 1 a.

Of course, the second communication port 2d may also be in direct communication with the first exhaust passage 1a (as shown in fig. 1).

As shown in fig. 1, 7, 9, 15, 17 and 24, the mounting seat 3 is further formed with mounting through holes 3b, the mounting through holes 3b penetrate through both ends of the mounting seat 3 in the axial direction of the upper cover 1, the airbag cavity 21 is fitted to the mounting through holes 3b, and the airbag cavity 21 extends out of one side of the mounting through holes 3b away from the upper cover 1, so that the airbag cavity 21 is connected to the link assembly 52 of the air pump 100.

In some embodiments, as shown in fig. 1, 5, 6, 9, 13, 14, 17, and 21-23, a partition 22 is disposed in the airbag cavity 21 to divide the internal space of the airbag cavity 21 into a second exhaust passage 2a and a mounting cavity 2e, and the connecting rod 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 mounting 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 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 flow in the second exhaust channel 2a is exhausted to the turn-back channel 100a, when the air bag cavity 21 is released by the connecting rod assembly 52, the space in the second exhaust channel 2a is increased, and the air flow 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 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.

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 (13)

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 gasbag (2), the gasbag (2) is established axial one side of upper cover (1), and has deformable gasbag chamber (21), second exhaust passage (2a) is injectd to gasbag chamber (21), second exhaust passage (2a) with first exhaust passage (1a) communicates through turn-back passageway (100a) in the axial of upper cover (1), the air current direction in first exhaust passage (1a) with the air current direction in second exhaust passage (2a) is unanimous, wherein, one side surface towards gasbag (2) of upper cover (1) has cooperation arch (111), cooperation arch (111) stretch into second exhaust passage (2a), just the orientation of cooperation arch (111) one side surface of gasbag (2) has guide surface (111 a).

2. Air pump (100) according to claim 1, wherein the guiding surface (111a) is plane and extends from the outside to the inside towards the direction close to the second air discharge channel (2 a).

3. The air pump (100) according to claim 1, wherein the return passage (100a) includes a first return passage (1c) and a second return passage (3a), the first return passage (1c) is located on an upstream side of the second return passage (3a) in the air flow direction, a first communication port (2c) and a second communication port (2d) that are communicated are formed on the air bag (2), the first communication port (2c) communicates the first return passage (1c) and the second return passage (3a), and the second communication port (2d) communicates the second return passage (3a) and the first exhaust passage (1a) so that the air flow is returned from the second exhaust passage (2a) to the first communication port (2c) through the first return passage (1c), and from the first communication port (2c) to the second communication port (3a) through the second return passage (3a) And a port (2 d).

4. An air pump (100) according to claim 3, further comprising:

a first outlet one-way valve (4A), the first outlet one-way valve (4A) being located at the first communication port (2c) to cover a portion of the first communication port (2c), or the first outlet one-way valve (4A) being located at the second communication port (2d) to cover a portion of the second communication port (2 d).

5. The air pump (100) of claim 4, wherein the first air outlet check valve (4A) comprises a valve sheet (41) and a matching column (42), the valve sheet (41) is formed into a cylindrical structure and is integrally formed at the edge of the first communication port (2c) or the edge of the second communication port (2d), an air inlet (41a) and an air outlet (41b) are respectively formed at two axial ends of the valve sheet (41), and the matching column (42) is tightly inserted and matched inside the valve sheet (41) along the direction from the air inlet (41a) to the air outlet (41 b).

6. The air pump (100) of claim 5, 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 air 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).

7. The air pump (100) of claim 5, wherein the first air outlet check valve (4A) is disposed at the first communication port (2c), and the mating post (42) is integrally formed with the upper cover (1).

8. The air pump (100) of claim 4, further comprising:

and the second air outlet one-way valve (4B), and the second air outlet one-way valve (4B) is fixedly arranged on the upper cover (1) to shield the second communication port (2 d).

9. The air pump (100) of claim 8, wherein the first exhaust passage (1a) has an exhaust chamber (1e), the second communication port (2d) communicates with the exhaust chamber (1e), the second outlet check valve (4B) includes a mounting portion (43) and a valve plate portion (44), the mounting portion (43) is mounted on the upper cover (1), and the valve plate portion (44) is disposed at one axial end of the mounting portion (43) and located in the exhaust chamber (1 e).

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

the first cover body (11), the first cover body (11) is matched with the airbag (2) in a sealing mode, a mounting hole (110) is formed in the first cover body (11), the mounting portion (43) is provided with a first abutting portion (431) and a second abutting portion (432), and the first abutting portion (431) and the second abutting portion (432) are abutted to the edges of the 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).

11. The air pump (100) according to claim 9, wherein the second air discharge passage (2a) and the second communication port (2d) are plural respectively, the upper cover (1) is formed with plural first communication passages (1d), an outlet of each of the first communication passages (1d) penetrates a wall surface of the air discharge chamber (1e), and each of the first communication passages (1d) communicates with one of the second communication ports (2 d).

12. The air pump (100) of any of claims 3-11, further comprising:

the installation seat (3) is arranged on one side, back to the upper cover (1), of the airbag (2), the upper cover (1) participates in limiting the first turning channel (1c), and the installation seat (3) participates in limiting the second turning channel (3 a).

13. Air pump (100) according to claim 12, characterized in that said upper cover (1) also participates in defining a second communication channel (1f), said second communication channel (1f) being arranged spaced from said first return channel (1c) and communicating said second communication port (2d) with said first exhaust channel (1 a).

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