WO2016037492A1 - 气泵 - Google Patents

气泵 Download PDF

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Publication number
WO2016037492A1
WO2016037492A1 PCT/CN2015/079323 CN2015079323W WO2016037492A1 WO 2016037492 A1 WO2016037492 A1 WO 2016037492A1 CN 2015079323 W CN2015079323 W CN 2015079323W WO 2016037492 A1 WO2016037492 A1 WO 2016037492A1
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WO
WIPO (PCT)
Prior art keywords
air
intake
exhaust pipe
communication
chamber
Prior art date
Application number
PCT/CN2015/079323
Other languages
English (en)
French (fr)
Inventor
董振凯
Original Assignee
厦门科际精密器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201420524607.5U external-priority patent/CN204186556U/zh
Priority claimed from CN201410466702.9A external-priority patent/CN105464935B/zh
Application filed by 厦门科际精密器材有限公司 filed Critical 厦门科际精密器材有限公司
Priority to JP2017513502A priority Critical patent/JP6405038B2/ja
Publication of WO2016037492A1 publication Critical patent/WO2016037492A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/047—Pumps having electric drive

Definitions

  • the present invention relates to the field of air pump equipment, and in particular to an air pump.
  • Micro air pumps are widely used in medical equipment, car seats and other fields, such as sphygmomanometers, massage chairs, etc.
  • the air pump in the related art is prone to noise during work and reduces the quality of the product.
  • the present invention aims to solve at least one of the above technical problems in the prior art to some extent.
  • the present invention needs to provide an air pump which has low operating noise.
  • An air pump includes: an upper cover, an upper air outlet is formed on the upper cover; a valve seat, the valve seat is disposed at a bottom of the upper cover, and an air inlet is formed on the valve seat, An intake air chamber and an air outlet chamber are defined between the valve seat and the upper cover, the air inlet chamber is in communication with the air inlet, and the air outlet chamber is in communication with the air outlet, the air inlet chamber and the air inlet chamber
  • the air chamber is communicated through a communication passage defined between the upper cover and the valve seat; and a valve plate, the valve plate being movably disposed at the air inlet to open and close the air inlet.
  • the air pump of the embodiment of the present invention by providing a communication passage between the intake chamber and the outlet chamber, the operating noise of the air pump is effectively reduced, and the quality of the product is improved.
  • air pump according to the above embodiment of the present invention may further have the following additional technical features:
  • a receiving cavity is defined between the valve seat and the upper cover, and a partition is disposed in the receiving cavity to partition the receiving cavity into the air inlet cavity and the air outlet cavity Wherein the communication passage is disposed around the receiving cavity.
  • the communication passage extends along a curve.
  • a top portion of the valve seat is formed with a first intake groove
  • a bottom portion of the upper cover is formed with a second intake groove
  • the first intake groove and the second intake groove The intake chamber is defined together.
  • the intake port is formed on a bottom wall of the first intake groove, and a bottom hole of the first intake groove is formed with a positioning hole spaced apart from the intake port.
  • the valve piece includes a valve piece portion and a positioning portion, the valve piece portion is connected to an upper end of the positioning portion and located in the air inlet cavity, and a lower end of the positioning portion is engaged with the positioning hole, A valve piece portion covers the air inlet.
  • the intake ports are plural and the plurality of intake ports are distributed along a circumferential interval of the positioning holes.
  • the top of the valve seat is formed with a first downwardly recessed air outlet groove
  • the bottom of the upper cover is formed with a second recessed air outlet groove, the first air outlet groove and the The second air outlet jointly defines the air outlet Cavity.
  • a bottom wall of the first air inlet groove is higher than a bottom wall of the first air outlet groove, and a top wall of the second air inlet groove is flat with a top wall of the second air outlet groove.
  • an air intake communication port and an air outlet communication port are formed on a side wall of the accommodating cavity, and the air intake communication port communicates the air intake cavity with the communication channel, and the air outlet port
  • the communication passage is in communication with the outlet chamber.
  • the intake chamber is plural and the plurality of intake chambers are circumferentially spaced apart.
  • the valve seat is provided with an upwardly extending first exhaust pipe
  • the upper cover is provided with a second exhaust pipe extending downward
  • the first exhaust pipe and the first exhaust pipe The second exhaust pipe cooperates to define an exhaust passage, and both ends of the exhaust passage are respectively in communication with the outlet chamber and the outlet.
  • the second exhaust pipe extends into the first exhaust pipe, and an outer wall of the second exhaust pipe and an inner wall of the first exhaust pipe are spaced apart from each other to define a Exhaust passage.
  • the top of the first exhaust pipe is provided with at least one first communication hole to communicate the exhaust passage with the outlet chamber, and the bottom end of the second exhaust pipe is open and Extending in the direction of the air outlet. .
  • the communication holes are two and the two communication holes are opposed to each other in the radial direction of the first exhaust pipe.
  • the top of the first exhaust pipe is provided with at least one first communication hole to communicate the exhaust passage with the outlet chamber
  • the second exhaust pipe extends into the first One end of an exhaust pipe is a sealed end
  • a peripheral wall of the second exhaust pipe is provided with at least one second communication hole to communicate the exhaust passage with the air outlet.
  • one end of the second exhaust pipe extending into the first exhaust pipe is fixed to a bottom surface of the first exhaust pipe, and the second communication hole is two and the two
  • the second communication holes are opposed to each other in the radial direction of the second exhaust pipe, and the first communication holes are alternately arranged with the second communication holes in a radial direction.
  • FIG. 1 is an exploded view of an air pump according to an embodiment of the present invention
  • Figure 2 is a perspective view of the air pump shown in Figure 1;
  • Figure 3 is a cross-sectional view of the air pump shown in Figure 2;
  • Figure 4 is a perspective view of the valve seat shown in Figure 1;
  • Figure 5 is a front elevational view of the valve seat shown in Figure 4.
  • Figure 6 is a bottom plan view of the valve seat shown in Figure 5;
  • Figure 7 is a perspective view of the upper cover shown in Figure 1;
  • Figure 8 is a front elevational view of the upper cover shown in Figure 7;
  • Figure 9 is a cross-sectional view taken along line A-A of Figure 8.
  • valve seat 21: first air inlet groove; 211: air inlet; 212: positioning hole;
  • valve piece 31: valve piece; 32: positioning part; 321: positioning ball;
  • partition plate 41: inner partition portion; 411: first inner partition portion; 412: second inner partition portion;
  • 431 intake communication port
  • 432 outlet connection port
  • S accommodation chamber
  • S1 intake chamber
  • S2 outlet chamber
  • S3 communication channel
  • S31 bottom surface
  • S32 top surface
  • S4 exhaust passage; S41: first sub-channel; S42: second sub-channel.
  • an air pump 100 includes an upper cover 1, a valve seat 2, and a valve plate 3.
  • the upper cover 1 is formed with an air outlet 11
  • the valve seat 2 is disposed at the bottom of the upper cover 1
  • the valve seat 2 is formed with an air inlet 211
  • the valve seat 2 and the upper cover 1 are
  • the intake chamber S1 and the outlet chamber S2 are defined, wherein the inlet chamber S1 is in communication with the inlet port 211, the outlet chamber S2 is in communication with the outlet port 11, and the inlet chamber S1 and the outlet chamber S2 are communicated through the communication passage S3.
  • 3 is movably disposed at the air inlet 211 to open and close the air inlet 211.
  • the "air intake port 211" is only for the intake air of the valve seat 2, and does not suggest the air intake port of the air pump 100 as a whole, and the "air outlet port 11" is only for the air outlet of the upper cover 2, Rather than suggesting the air outlet of the air pump 100 as a whole.
  • the upper cover 1 is adapted to be capped on the top of the valve seat 2, and the upper cover 1 and the valve seat 2 together define an intake chamber S1 and an outlet chamber S2.
  • the communication passage S3 is defined between the upper cover 1 and the valve seat 2, and a gas such as air may flow from the intake port 211 into the intake chamber S1 in the valve seat 2, and then flow into the communication passage S3 from the intake chamber S1. Then from the company The passage S3 flows into the outlet chamber S2, and finally the upper cover 1 is discharged from the outlet port 11.
  • the gas needs to flow through the intake chamber S1, the communication passage S3, and the outlet chamber S2 in sequence, thereby prolonging and complicating the flow path of the gas, increasing noise.
  • the loss effectively reduces the flow noise of the gas and the overall noise of the air pump 100.
  • the communication passage S3 can extend along the curve so that the flow path of the gas can be further lengthened and complicated, further reducing the flow noise of the gas.
  • the air pump 100 of the embodiment of the present invention by providing the communication passage S3 between the intake chamber S1 and the outlet chamber S2, the operating noise of the air pump 100 is effectively reduced, and the quality of the product is improved.
  • a accommodating chamber S is defined between the valve seat 2 and the upper cover 1, and a partition 4 is disposed in the accommodating chamber S to partition the accommodating chamber S into the intake chamber S1 and the outlet chamber S2, wherein The communication passage S3 is disposed around the accommodation chamber S.
  • a first air outlet groove 22 is formed at the top of the valve seat 2
  • a second air outlet groove 13 is formed at the bottom of the upper cover 1, and the first air outlet groove 22 and the second air outlet groove 13 together define an air outlet chamber S2.
  • the contact faces of the valve seat 2 and the upper cover 1 can be connected together by ultrasonic welding technology.
  • the partition plate 4 further includes an inner partition portion 41 and an outer partition portion 42, wherein the outer partition portion 42 may be connected to the inner partition portion 41, and the outer partition plate
  • the portion 42 surrounds the outer side of the inner partition portion 41
  • the communication passage S3 is located outside the outer partition portion 42
  • the accommodation chamber S is located inside the outer partition portion 42
  • the inner partition portion 41 separates the accommodation chamber S into the intake chamber S1 and an outlet chamber S2, wherein the outlet chamber S2 is located inside the inner partition portion 41, and the intake chamber S1 is located outside the inner partition portion 41.
  • the inner partition portion 41 may be formed by vertically connecting the first inner partition portion 411 provided on the upper cover 1 and the second inner partition portion 412 provided on the valve seat 2, respectively.
  • the partition portion 42 may be vertically butted by a first outer partition portion 421 provided on the upper cover 1 and a second outer partition portion 422 provided on the valve seat 2.
  • the valve seat 2 and the upper cover 1 may have a coaxial central axis after assembly, wherein “inside” may be understood as one side toward the central axis, and the opposite side is defined as “outside”. , that is, the side away from the central axis.
  • An intake air communication port 431 and an air outlet communication port 432 are formed on the side wall of the accommodating chamber S.
  • the intake air communication port 431 communicates the air intake chamber S1 with the communication passage S3, and the air outlet communication port 432 communicates the communication passage S3 with the air outlet chamber S2.
  • the intake communication port 431 can penetrate the junction of the inner partition portion 41 and the outer partition portion 42, so that the gas in the intake chamber S1 can flow into the communication passage S3 through the intake communication port 431.
  • the gas outlet communication port 432 can penetrate the outer partition portion 42 such that the gas in the communication passage S3 can enter the air outlet chamber S2 through the air outlet communication port 432.
  • the top of the valve seat 2 is formed with a first intake groove 21, and the bottom of the upper cover 1 is formed with a second intake groove 12, and the first intake groove 21 and the second intake groove 12 together define an intake cavity S1.
  • the first intake groove 21 is recessed downward from the upper end surface of the valve seat 2
  • the second intake groove 12 is recessed upward from the lower end surface of the upper cover 1
  • the first intake groove 21 and the second intake groove 12 are vertically aligned and jointly define The air chamber S1
  • the outer peripheral wall of the inner partition portion 41 can be understood as the peripheral wall of the intake chamber S1.
  • the intake port 211 is formed on the bottom wall of the first intake groove 21, and the bottom wall of the first intake groove 21 is formed with a positioning hole 212 spaced apart from the intake port 211.
  • the air inlet 211 is a plurality of and the plurality of air inlets 211 are distributed along the circumferential direction of the positioning hole 212 .
  • a positioning hole 212 is formed at the center of the bottom wall of the first intake groove 21, and the positioning hole 212 may be configured as a circular hole and penetrate the bottom wall of the first intake groove 21 in the up and down direction.
  • Three intake ports 211 are evenly distributed in the circumferential direction of the positioning hole 212, and the three intake ports 211 also penetrate the bottom wall of the first intake groove 21 in the up and down direction, respectively.
  • the valve piece 3 includes a valve piece portion 31 and a positioning portion 32.
  • the valve piece portion 31 is connected to the upper end of the positioning portion 32 and located in the intake chamber S1.
  • the lower end of the positioning portion 32 and the positioning hole are provided.
  • the valve portion 31 covers the air inlet 211.
  • the valve piece portion 31 may be generally configured as a sheet body having a circular arc surface, and the center of the valve piece portion 31 is convex toward the upper cover 1 , and the cross-sectional shape and size of the valve piece portion 31 are respectively the first
  • the cross-sectional shape and size of the intake groove 21 are the same, so that the valve piece portion 31 can completely cover the three intake ports 211.
  • the positioning portion 32 extends vertically downward from the lower end surface of the valve piece portion 31, and the lower portion of the positioning portion 32 has a substantially spherical positioning ball 321 where the valve piece 3 is opened.
  • a gas such as air may enter the intake port 211 from the bottom up to open the valve piece portion 31 upward so that gas can enter the intake chamber S1.
  • the number and shape of the air inlets 211 can also be set according to actual requirements to better meet the actual requirements.
  • the arrows shown in FIGS. 3, 4, 5, and 9 are used to indicate the flow direction of the gas.
  • the intake chamber S1 may be a plurality of and the plurality of intake chambers S1 are circumferentially spaced apart.
  • the upper cover 1 and the valve seat 2 together define three intake chambers S1, and the three intake chambers S1 are evenly distributed in the circumferential direction of the central axis, and each of the intake chambers S1
  • the structures are all the same, and at this time, the number of the inner partition portions 41 is also three, and the structures of the three inner partition portions 41 are also the same.
  • the present invention is not limited thereto, and the structure and the number of the intake chamber S1 can also be set according to actual requirements to better meet the actual requirements.
  • the bottom wall of the first air inlet groove 21 is higher than the bottom wall of the first air outlet groove 22
  • the top wall of the second air inlet groove 12 is flush with the top wall of the second air outlet groove 13 . That is, the depth of the first intake groove 21 recessed downward is smaller than the depth of the first air outlet groove 22, and the depth of the second intake groove 12 is concave upwards is equal to the upward concave of the second air outlet groove 13.
  • the depth of the intake chamber S1 in the up and down direction is smaller than the height of the outlet chamber S2 in the up and down direction, so as to ensure that the space of the outlet chamber S2 can be large, further improving the noise reduction effect.
  • the valve seat 2 is provided with an upwardly extending first exhaust pipe 23, and the upper cover 1 is provided with a second exhaust pipe extending downward.
  • the first exhaust pipe 23 cooperates with the second exhaust pipe 15 to define an exhaust passage S4.
  • the two ends of the exhaust passage S4 are respectively communicated with the outlet air chamber S2 and the air outlet port 11, wherein two of the exhaust passages S4
  • the ends are respectively an inlet end and an outlet end, wherein the inlet end is in communication with the outlet chamber S2, the outlet end is in communication with the outlet port 11, and the gas in the outlet chamber S2 can enter the exhaust passage S4 from the inlet end of the exhaust passage S4. Then, it flows along the exhaust passage S4, and finally the upper cover 1 is discharged from the air outlet 11 through the outlet end of the exhaust passage S4.
  • the volume of the exhaust passage S4 is smaller than the volume of the outlet chamber S2.
  • the gas can be discharged from the larger volume outlet chamber S2 into the smaller volume exhaust passage S4 to effectively change the gas flow rate and pressure, thereby further reducing the exhaust noise.
  • the second exhaust pipe 15 extends into the first exhaust pipe 23, and the outer wall of the second exhaust pipe 15 and the inner wall of the first exhaust pipe 23 are spaced apart from each other to define the exhaust passage S4.
  • the first exhaust pipe 23 is formed with a first hole 231
  • the first hole 231 may be a blind hole
  • the first hole 231 may be from the top of the first exhaust pipe 23 .
  • the wall is vertically downwardly recessed
  • the second exhaust pipe 15 is formed with a second hole 151.
  • the second hole 151 may be a through hole or a blind hole.
  • the second exhaust pipe 15 is provided.
  • the bottom end is open, and when the second hole 151 is a blind hole, the bottom end of the second exhaust pipe 15 is a sealed end.
  • the exhaust passage S4 may include a first sub-channel S41 and a second sub-channel S42 that communicate with each other, the first sub-channel S41 is a gap between the second exhaust pipe 15 and the first hole 231, and the second sub-channel S42 is a second hole 151.
  • the top open opening of the second sub-channel S42 is the air outlet 11 of the upper cover 1.
  • the top of the first exhaust pipe 23 is provided with at least one first communication hole 232 for communicating the exhaust passage S4 with the outlet chamber S2.
  • the first communication hole 232 penetrates the top end of the first exhaust pipe 23 in the inner and outer directions, and the first communication hole 232 may also be recessed downward from the top end of the first exhaust pipe 23.
  • the inner end of the first communication hole 232 communicates with the first sub-channel S41, and the outer end of the first communication hole 232 communicates with the air outlet chamber S2.
  • the gas in the air outlet chamber S2 can pass.
  • the first communication hole 232 enters the first sub-channel S41.
  • the first communication holes 232 are two and the two first communication holes 232 are opposite to each other in the radial direction of the first exhaust pipe 23, that is, the two first communication holes 232 may be in the first
  • the circumferential direction of an exhaust pipe 23 is arranged at intervals of 180°, so that the gas in the outlet air chamber S2 can be uniformly flowed into the exhaust passage S4, and the exhaust efficiency can be improved.
  • the present invention is not limited thereto, and the structure, the number, and the distribution position of the first communication hole 232 can also be set according to actual requirements to better meet actual requirements.
  • the open end When the end of the second exhaust pipe 15 extending into the first exhaust pipe 23 is an open end, the open end extends in the direction of the air outlet 11 to communicate with the air outlet 11, and at this time, the second hole 151 is along the air outlet
  • the direction ie, the flow direction of the outlet air, such as the up and down direction shown in FIG. 3 penetrates the second exhaust pipe 15, and the lower end of the second exhaust pipe 15 is spaced apart from the bottom wall of the first hole 231.
  • the open opening at the bottom of the second hole 151 can be understood as the open end of the bottom end of the second exhaust pipe 15, and the open opening at the top of the second hole 151 can be understood as the air outlet 11 of the upper cover 1, and the second hole 151
  • the top end is the outlet end of the exhaust passage S4.
  • the gas entering the first sub-channel S41 can enter the second sub-channel S42 through the open end of the second exhaust pipe, and then the upper cover 1 is discharged from the air outlet 11 at the top of the second sub-channel S42.
  • the arrows shown in FIGS. 4 and 5 are used to indicate the flow direction of the gas.
  • the peripheral wall of the second exhaust pipe 15 is provided with at least one second communication hole to connect the exhaust passage S4 with the air outlet 11 .
  • the second communication hole penetrates the peripheral wall of the bottom end of the second exhaust pipe in the inner and outer directions, so that the inner end of the second communication hole communicates with the second sub-channel S42, and the outer end of the second communication hole communicates with the first sub-channel S41.
  • the gas entering the first sub-channel S41 can enter the second sub-channel S42 through the second communication hole, and then the upper cover 1 is discharged from the air outlet 11 at the top of the second sub-channel S42.
  • the arrows shown in Figures 4 and 5 are used to indicate the direction of flow of the gas.
  • the second communication holes are two and the two second communication holes are opposed to each other in the radial direction of the second exhaust pipe 15.
  • the two second communication holes may be arranged at intervals of 180° in the circumferential direction of the second exhaust pipe 15, so that the gas in the first sub-channel S41 can be uniformly flowed into the second sub-channel S42 to improve the discharge. Gas efficiency.
  • the present invention is not limited thereto, and the structure, the number, and the distribution position of the second communication hole can also be set according to actual requirements to better meet the actual requirements.
  • the first communication hole 232 is provided at the top of the first exhaust pipe 23, the second communication hole is provided at the bottom of the second exhaust pipe 15, and the tops of the first exhaust pipe 23 and the second exhaust pipe 15 Generally, the bottom ends of the first exhaust pipe 23 and the second exhaust pipe 15 are also substantially flush, so that the first communication hole 232 and the second communication hole are in the first exhaust pipe 23 or the second exhaust pipe 15
  • the axially staggered arrangement preferably, the first communication hole 232 and the second communication hole are staggered in the radial direction of the first exhaust pipe 23 or the second exhaust pipe 15, that is, the first communication hole 232 Projections spaced apart from the second communication hole in a plane perpendicular to the direction in which the first exhaust pipe 23 or the second exhaust pipe 15 extends (for example, the horizontal plane shown in FIG. 3) are spaced apart from each other, so that the exhaust passage S4 can be further extended The length to effectively reduce exhaust noise.
  • one end of the second exhaust pipe 15 extending into the first exhaust pipe 23 is a sealed end
  • one end of the second exhaust pipe 15 extending into the first exhaust pipe 23 may be fixed at the first end.
  • the bottom surface of an exhaust pipe 23, for example, the lower end of the second exhaust pipe 15 may be coupled to the bottom wall of the first hole 231 by ultrasonic welding technology.
  • the valve plate 3 covering the air inlet 211 is upwardly opened, and the gas first enters the air intake chamber S1, and then enters the curved communication passage S3 through the intake air communication port 431, and then connects the passage S3.
  • the gas inside is discharged into the air outlet chamber S2 along the air outlet port 432, and then the gas in the air outlet chamber S2 can enter the first sub-channel S41 of the exhaust passage S4 through the first communication hole 232, and then from the first sub-channel S41. It flows to the second sub-channel S42 and is finally discharged from the air outlet 11 of the upper cover 1.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be directly connected, or indirectly connected through an intermediate medium, can be internal communication of two components or two components Interaction relationship.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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Abstract

一种气泵（100），所述气泵（100）包括：上盖（1）、阀座（2）以及阀片（3），上盖（1）上形成有出气口（11），阀座（2）设在上盖（1）的底部，阀座（2）上形成有进气口（211），阀座（2）与上盖（1）之间限定出进气腔（S1）和出气腔（S2），进气腔（S1）与进气口（211）连通，出气腔（S2）与出气口（11）连通，进气腔（S1）和出气腔（S2）通过连通通道（S3）连通，阀片（3）可移动地设在进气口（211）处以打开和关闭进气口（211）。

Description

气泵 技术领域
本发明涉及气泵设备领域，具体而言，特别涉及一种气泵。
背景技术
微型气泵广泛应用于医疗器械、汽车座椅等领域，例如血压计、按摩椅等，然而，相关技术中的气泵在工作过程中容易产生噪音，降低了产品的品质。
发明内容
本发明旨在至少在一定程度上解决现有技术中的上述技术问题之一。
有鉴于此，本发明需要提供一种气泵，所述气泵的工作噪音低。
根据本发明提供的气泵，包括：上盖，所述上盖上形成有出气口；阀座，所述阀座设在所述上盖的底部，所述阀座上形成有进气口，所述阀座与所述上盖之间限定出进气腔和出气腔，所述进气腔与所述进气口连通，所述出气腔与所述出气口连通，所述进气腔和所述出气腔通过限定在所述上盖和所述阀座之间的连通通道连通；以及阀片，所述阀片可移动地设在所述进气口处以打开和关闭所述进气口。
根据本发明的实施例的气泵，通过在进气腔与出气腔之间设置连通通道，从而有效地降低了气泵的工作噪音，提高了产品的品质。
另外，根据本发明上述实施例的气泵还可以具有如下附加的技术特征：
根据本发明的一个示例，所述阀座与所述上盖之间限定出容纳腔，所述容纳腔内设有隔板以将所述容纳腔分隔成所述进气腔和所述出气腔，其中所述连通通道环绕所述容纳腔设置。
根据本发明的一个示例，所述连通通道沿曲线延伸。
根据本发明的一个示例，所述阀座的顶部形成有第一进气槽，所述上盖的底部形成有第二进气槽，所述第一进气槽与所述第二进气槽共同限定出所述进气腔。
根据本发明的一个示例，所述进气口形成在所述第一进气槽的底壁上，所述第一进气槽的底壁上形成有与所述进气口间隔开的定位孔，所述阀片包括阀片部和定位部，所述阀片部连接在所述定位部的上端且位于所述进气腔内，所述定位部的下端与所述定位孔配合，所述阀片部覆盖在所述进气口上。
根据本发明的一个示例，所述进气口为多个且所述多个进气口沿所述定位孔的周向间隔分布。
根据本发明的一个示例，所述阀座的顶部形成有向下凹入的第一出气槽，所述上盖的底部形成有向上凹入的第二出气槽，所述第一出气槽与所述第二出气槽共同限定出所述出气 腔。
根据本发明的一个示例，所述第一进气槽的底壁高于所述第一出气槽的底壁，所述第二进气槽的顶壁与所述第二出气槽的顶壁平齐。
根据本发明的一个示例，所述容纳腔的侧壁上形成有进气连通口和出气连通口，所述进气连通口将所述进气腔与所述连通通道连通，所述出气连通口将所述连通通道与所述出气腔连通。
根据本发明的一个示例，所述进气腔为多个且所述多个进气腔沿周向间隔开分布。
根据本发明的一个示例，所述阀座上设有向上延伸的第一排气管，所述上盖上设有向下延伸的第二排气管，所述第一排气管与所述第二排气管配合以限定出排气通道，所述排气通道的两端分别与所述出气腔和所述出气口连通。
根据本发明的一个示例，所述第二排气管伸入所述第一排气管内，所述第二排气管的外壁与所述第一排气管的内壁彼此间隔开以限定出所述排气通道。
根据本发明的一个示例，所述第一排气管的顶部设有至少一个第一连通孔以将所述排气通道与所述出气腔连通，所述第二排气管的底端敞开且沿所述出气口的方向延伸。。
根据本发明的一个示例，所述连通孔为两个且所述两个连通孔沿所述第一排气管的径向相对。
根据本发明的一个示例，所述第一排气管的顶部设有至少一个第一连通孔以将所述排气通道与所述出气腔连通，所述第二排气管伸入所述第一排气管的一端为密封端，所述第二排气管的周壁设有至少一个第二连通孔以将所述排气通道与所述出气口连通。
根据本发明的一个示例，所述第二排气管伸入所述第一排气管的一端固定在所述第一排气管的底面，所述第二连通孔为两个且所述两个第二连通孔沿所述第二排气管的径向相对，所述第一连通孔与所述第二连通孔径向方向交错设置。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
图1是根据本发明实施例的气泵的爆炸图；
图2是图1中所示的气泵的立体图；
图3是图2中所示的气泵的剖面图；
图4是图1中所示的阀座的立体图；
图5是图4中所示的阀座的主视图；
图6是图5中所示的阀座的仰视图；
图7是图1中所示的上盖的立体图；
图8是图7中所示的上盖的主视图；
图9是沿图8中A-A线的剖面图。
附图标记：
100：气泵；
1：上盖；11：出气口；12：第二进气槽；13：第二出气槽；
         15：第二排气管；151：第二孔；
2：阀座；21：第一进气槽；211：进气口；212：定位孔；
         22：第一出气槽；
         23：第一排气管；231：第一孔；232：第一连通孔；
3：阀片；31：阀片部；32：定位部；321：定位球；
4：隔板；41：内隔板部；411：第一内隔板部；412：第二内隔板部；
         42：外隔板部；421：第一外隔板部；422：第二外隔板部；
         431：进气连通口；432：出气连通口；
S：容纳腔；S1：进气腔；S2：出气腔；
S3：连通通道；S31：底面；S32：顶面；
S4：排气通道；S41：第一子通道；S42：第二子通道。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下文的公开提供了许多不同的实施例或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或字母。这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施例和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的可应用于性和/或其他材料的使用。
下面参考图1-图9描述根据本发明施例的气泵100。
如图1-图3所示，根据本发明实施例的气泵100，包括：上盖1、阀座2以及阀片3。
具体地，参照图1和图3，上盖1上形成有出气口11，阀座2设在上盖1的底部，阀座2上形成有进气口211，阀座2与上盖1之间限定出进气腔S1和出气腔S2，其中，进气腔S1与进气口211连通，出气腔S2与出气口11连通，进气腔S1和出气腔S2通过连通通道S3连通，阀片3可移动地设在进气口211处以打开和关闭进气口211。
这里，需要说明的是，“进气口211”仅针对阀座2的进气而言，而非暗示气泵100整体的进气口，“出气口11”仅针对上盖2的出气而言，而非暗示气泵100整体的出气口。
如图1和图3所示，上盖1适于盖合在阀座2的顶部，上盖1与阀座2共同限定出进气腔S1、出气腔S2。此外，连通通道S3限定在上盖1和阀座2之间，气体例如空气可以从进气口211流入阀座2内的进气腔S1内，然后从进气腔S1流入连通通道S3内，接着从连 通通道S3流入出气腔S2内，最终从出气口11排出上盖1。
由此，气体从进入阀座2到离开上盖1的过程中，需要顺次流经进气腔S1、连通通道S3和出气腔S2，从而延长和复杂化了气体的流动路径，增加了噪音损失，进而有效地降低了气体的流动噪音和气泵100的整体噪音。优选地，连通通道S3可以沿曲线延伸，从而可以进一步延长和复杂化气体的流动路径，进一步降低气体的流动噪音。
根据本发明实施例的气泵100，通过在进气腔S1与出气腔S2之间设置连通通道S3，从而有效地降低了气泵100的工作噪音，提高了产品的品质。
另外，需要说明的是，根据本发明实施例的气泵100的其他构成例如气囊(图未示出)等以及气泵100的操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本发明的一个实施例中，阀座2与上盖1之间限定出容纳腔S，容纳腔S内设有隔板4以将容纳腔S分隔成进气腔S1和出气腔S2，其中连通通道S3环绕容纳腔S设置。进一步地，阀座2的顶部形成有第一出气槽22，上盖1的底部形成有第二出气槽13，第一出气槽22与第二出气槽13共同限定出出气腔S2。其中，阀座2与上盖1的接触面可以通过超音波熔接技术连接在一起。
进一步地，参照图3、图4和图7，隔板4进一步包括内隔板部41和外隔板部42，其中，外隔板部42可以与内隔板部41相连，且外隔板部42环绕在内隔板部41的外侧，连通通道S3位于外隔板部42的外侧，容纳腔S位于外隔板部42的内侧，内隔板部41将容纳腔S分隔成进气腔S1和出气腔S2，其中出气腔S2位于内隔板部41的内侧，进气腔S1位于内隔板部41的外侧。
其中，如图3所示，内隔板部41可以由设在上盖1上的第一内隔板部411和设在阀座2上的第二内隔板部412上下对接而成，外隔板部42可以由设在上盖1上的第一外隔板部421和设在阀座2上的第二外隔板部422上下对接而成。另外，需要说明的是，阀座2与上盖1装配后可以具有同轴的中心轴线，其中，“内侧”可以理解为朝向中心轴线的一侧，其相反的一侧被定义为“外侧”，即远离中心轴线的一侧。
具体地，参照图3、图4和图7，当上盖1与阀座2装配到位后，上盖1的环绕在容纳腔S外缘的底面S32、与阀座2的环绕在容纳腔S外缘的顶面S31上下间隔开，从而隔板4的侧壁分别与顶面S31、底面S32共同限定出连通通道S3。
容纳腔S的侧壁上形成有进气连通口431和出气连通口432，进气连通口431将进气腔S1与连通通道S3连通，出气连通口432将连通通道S3与出气腔S2连通。如图4和图5所示，进气连通口431可以贯穿内隔板部41与外隔板部42的连接处，从而进气腔S1内的气体可以通过进气连通口431流入连通通道S3内，出气连通口432可以贯穿外隔板部42，从而连通通道S3内的气体可以通过出气连通口432进入出气腔S2内。
具体地，阀座2的顶部形成有第一进气槽21，上盖1的底部形成有第二进气槽12，第一进气槽21与第二进气槽12共同限定出进气腔S1。如图3、图4和图7所示，第一进气槽21从阀座2的上端面向下凹入而成，第二进气槽12从上盖1的下端面向上凹入而成，当上盖1与阀座2装配到位后，第一进气槽21与第二进气槽12上下正对且共同限定出进 气腔S1，此时，内隔板部41的外周壁可以理解为进气腔S1的周壁。
进一步地，进气口211形成在第一进气槽21的底壁上，第一进气槽21的底壁上形成有与进气口211间隔开的定位孔212。可选地，进气口211为多个且多个进气口211沿定位孔212的周向间隔分布。例如在图4的示例中，第一进气槽21的底壁的中心处形成有一个定位孔212，定位孔212可以构造为圆孔，且沿上下方向贯穿第一进气槽21的底壁，定位孔212的周向上均匀地分布有三个进气口211，三个进气口211也分别沿上下方向贯穿第一进气槽21的底壁。
相应地，参照图1和图3，阀片3包括阀片部31和定位部32，阀片部31连接在定位部32的上端且位于进气腔S1内，定位部32的下端与定位孔212配合，阀片部31覆盖在进气口211上。具体地，阀片部31可以大体构造为具有圆弧面的片体，且阀片部31的中心朝向上盖1的方向凸出，且阀片部31的横截面形状、尺寸分别与第一进气槽21的横截面形状、尺寸相同，从而阀片部31可以将三个进气口211完全覆盖住。
进一步地，参照图1和图3，定位部32从阀片部31的下端面竖直向下延伸，且定位部32的下部具有大体圆球形的定位球321，此处，阀片3在打开位置与关闭位置之间移动时，只有阀片部31执行打开和关闭动作，定位部32始终固定不动。
如图3所示，气泵100在工作的过程中，气体例如空气、可以自下向上进入进气口211，以将阀片部31向上顶开，使得气体可以进入进气腔S1内。其中，进气口211的数量和形状还可以根据实际要求设置，以更好地满足实际要求。另外，图3、图4、图5、图9中所示的箭头用于指示气体的流动方向。
其中，进气腔S1可以为多个且多个进气腔S1沿周向间隔开分布。例如在图1的示例中，上盖1与阀座2共同限定出三个进气腔S1，且三个进气腔S1均匀地分布在中心轴线的周向上，且每个进气腔S1的结构均相同，此时内隔板部41也为三个，且三个内隔板部41的结构也相同。当然，本发明不限于此，进气腔S1的结构和数量还可以根据实际要求设置，以更好地满足实际要求。
如图4和图7所示，第一进气槽21的底壁高于第一出气槽22的底壁，第二进气槽12的顶壁与第二出气槽13的顶壁平齐，也就是说，第一进气槽21向下凹入的深度小于第一出气槽22向下凹入的深度，而第二进气槽12向上凹入的深度等于第二出气槽13向上凹入的深度，从而进气腔S1在上下方向上的高度小于出气腔S2在上下方向上的高度，以保证出气腔S2的空间可以较大，进一步提高降噪效果。
在本发明的一个实施例中，参照图3、图4和图7，阀座2上设有向上延伸的第一排气管23，上盖1上设有向下延伸的第二排气管15，第一排气管23与第二排气管15配合以限定出排气通道S4，排气通道S4的两端分别与出气腔S2和出气口11连通，其中，排气通道S4的两端分别为进口端和出口端，其中进口端与出气腔S2相连通，出口端与出气口11相连通，出气腔S2内的气体可以从排气通道S4的进口端进入排气通道S4内，然后沿着排气通道S4流动，最后通过排气通道S4的出口端从出气口11排出上盖1。
其中，如图3所示，排气通道S4的容积小于出气腔S2的容积。由此，通过设置排气 通道S4，气体可以从容积较大的出气腔S2排入到容积较小的排气通道S4内，以有效地改变气体的流速和压力，从而可以进一步降低排气噪声。
进一步地，第二排气管15伸入第一排气管23内，第二排气管15的外壁与第一排气管23的内壁彼此间隔开以限定出排气通道S4。参照图4和图9，并结合图3，第一排气管23上形成有第一孔231，第一孔231可以为盲孔，且第一孔231可以从第一排气管23的顶壁竖直向下凹入，第二排气管15上形成有第二孔151，第二孔151可以为通孔或者盲孔，当第二孔151为通孔时，第二排气管15的底端敞开，当第二孔151为盲孔时，第二排气管15的底端为密封端。
如图3所示，当上盖1与阀座2配合到位后，第二排气管15向下伸入第一孔231内，第一孔231的直径大于第二排气管15的外径，从而第二排气管15的外周壁与第一孔231的周壁彼此间隔开，此时，排气通道S4可以包括彼此连通的第一子通道S41和第二子通道S42，第一子通道S41为第二排气管15与第一孔231之间的间隙，第二子通道S42为第二孔151，此时第二子通道S42的顶部敞开口为上盖1的出气口11。
具体地，第一排气管23的顶部设有至少一个第一连通孔232以用于将排气通道S4与出气腔S2连通。例如在图4-图6的示例中，第一连通孔232沿内外方向贯穿第一排气管23的顶端，且第一连通孔232还可以自第一排气管23的顶端向下凹入而成，从而第一连通孔232的内端与第一子通道S41相连通，第一连通孔232的外端与出气腔S2相连通，这样，参照图3，出气腔S2内的气体可以通过第一连通孔232进入第一子通道S41内。
可选地，参照图5，第一连通孔232为两个且两个第一连通孔232沿第一排气管23的径向相对，也就是说，两个第一连通孔232可以在第一排气管23的周向上间隔180°布置，从而可以保证出气腔S2内的气体均匀地流入排气通道S4内，且可以提高排气效率。当然，本发明不限于此，第一连通孔232的结构、数量以及分布位置还可以根据实际要求设置，以更好地满足实际要求。
当第二排气管15的伸入第一排气管23的一端为敞开端时，敞开端沿出气口11的方向延伸以与出气口11相连通，此时，第二孔151沿出气口的方向(即出气的流动方向，例如图3中所示的上下方向)贯穿第二排气管15，且第二排气管15的下端与第一孔231的底壁上下间隔开，此时第二孔151的底部的敞开口可以理解为第二排气管15的底端敞开端，第二孔151的顶部的敞开口可以理解为上盖1的出气口11，且第二孔151的顶端即为排气通道S4的出口端。由此，进入第一子通道S41内的气体可以通过第二排气管的敞开端进入第二子通道S42内，然后从第二子通道S42顶部的出气口11排出上盖1。其中，图4和图5中所示的箭头用于指示气体的流动方向。
当第二排气管15的伸入第一排气管23的一端为密封端时，第二排气管15的周壁设有至少一个第二连通孔以将排气通道S4与出气口11连通。第二连通孔沿内外方向贯穿第二排气管的底端周壁，从而第二连通孔的内端与第二子通道S42相连通，第二连通孔的外端与第一子通道S41相连通，这样，参照图3，进入第一子通道S41内的气体可以通过第二连通孔进入第二子通道S42内，然后从第二子通道S42顶部的出气口11排出上盖1。其中， 图4和图5中所示的箭头用于指示气体的流动方向。
第二连通孔为两个且两个第二连通孔沿第二排气管15的径向相对。参照图5，两个第二连通孔可以在第二排气管15的周向上间隔180°布置，从而可以保证第一子通道S41内的气体均匀地流入第二子通道S42内，以提高排气效率。当然，本发明不限于此，第二连通孔的结构、数量以及分布位置还可以根据实际要求设置，以更好地满足实际要求。
这样，由于第一连通孔232设在第一排气管23的顶部，第二连通孔设在第二排气管15的底部，且第一排气管23与第二排气管15的顶端大体平齐、第一排气管23与第二排气管15的底端也大体平齐，从而第一连通孔232与第二连通孔在第一排气管23或第二排气管15的轴向上交错布置，优选地，第一连通孔232与第二连通孔在第一排气管23或第二排气管15的径向方向交错设置，也就是说，第一连通孔232与第二连通孔在垂直于第一排气管23或第二排气管15延伸方向的平面(例如图3中所示的水平面)上的投影彼此间隔开，从而可以进一步延长排气通道S4的长度，以有效地降低排气噪声。
另外，需要说明的是，当第二排气管15的伸入第一排气管23的一端为密封端时，第二排气管15伸入第一排气管23的一端可以固定在第一排气管23的底面，例如，第二排气管15的下端可以与第一孔231的底壁通过超音波熔接技术连接在一起。由此，可以延长排气通道S4的长度，进一步降低排气噪声。
下面参照图3-图5简要描述根据本发明一个实施例的气泵100的排气工作过程。
气泵100排气时，覆盖在进气口211上的阀片3被向上顶开，气体首先进入进气腔S1内，然后通过进气连通口431进入弯曲的连通通道S3内，然后连通通道S3内的气体沿着出气连通口432排出到出气腔S2内，接着出气腔S2内的气体可以通过第一连通孔232进入排气通道S4的第一子通道S41内，再从第一子通道S41流向第二子通道S42，最终从上盖1的出气口11排出。
由此，气体从进入阀座2到流出上盖1的流动路径即长又复杂，且气体可以在大、小腔内交替流动，从而可以有效地改变气体的流速和压力，以实现有效地降噪效果。
在本发明的描述中，需要理解的是，术语“中心”、“上”、“下”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的 相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (16)

  1. 一种气泵，其特征在于，包括：
    上盖，所述上盖上形成有出气口；
    阀座，所述阀座设在所述上盖的底部，所述阀座上形成有进气口，所述阀座与所述上盖之间限定出进气腔和出气腔，所述进气腔与所述进气口连通，所述出气腔与所述出气口连通，所述进气腔和所述出气腔通过限定在所述上盖和所述阀座之间的连通通道而相连通；以及
    阀片，所述阀片可移动地设在所述进气口处以打开和关闭所述进气口。
  2. 根据权利要求1所述的气泵，其特征在于，所述阀座与所述上盖之间限定出容纳腔，所述容纳腔内设有隔板以将所述容纳腔分隔成所述进气腔和所述出气腔，其中所述连通通道环绕所述容纳腔设置。
  3. 根据权利要求1或2所述的气泵，其特征在于，所述连通通道沿曲线延伸。
  4. 根据权利要求1-3中任一项所述的气泵，其特征在于，所述阀座的顶部形成有第一进气槽，所述上盖的底部形成有第二进气槽，所述第一进气槽与所述第二进气槽共同限定出所述进气腔。
  5. 根据权利要求4所述的气泵，其特征在于，所述进气口形成在所述第一进气槽的底壁上，所述第一进气槽的底壁上形成有与所述进气口间隔开的定位孔，
    所述阀片包括阀片部和定位部，所述阀片部连接在所述定位部的上端且位于所述进气腔内，所述定位部的下端与所述定位孔配合，所述阀片部覆盖在所述进气口上。
  6. 根据权利要求5所述的气泵，其特征在于，所述进气口为多个且所述多个进气口沿所述定位孔的周向间隔分布。
  7. 根据权利要求4-6中任一项所述的气泵，其特征在于，所述阀座的顶部形成有向下凹入的第一出气槽，所述上盖的底部形成有向上凹入的第二出气槽，所述第一出气槽与所述第二出气槽共同限定出所述出气腔。
  8. 根据权利要求7所述的气泵，其特征在于，所述第一进气槽的底壁高于所述第一出气槽的底壁，所述第二进气槽的顶壁与所述第二出气槽的顶壁平齐。
  9. 根据权利要求2-8中任一项所述的气泵，其特征在于，所述容纳腔的侧壁上形成有进气连通口和出气连通口，所述进气连通口将所述进气腔与所述连通通道连通，所述出气连通口将所述连通通道与所述出气腔连通。
  10. 根据权利要求2-9中任一项所述的气泵，其特征在于，所述进气腔为多个且所述多个进气腔沿周向间隔开分布。
  11. 根据权利要求1-10中任一项所述的气泵，其特征在于，所述阀座上设有向上延伸的第一排气管，所述上盖上设有向下延伸的第二排气管，所述第一排气管与所述第二排气管配合以限定出排气通道，所述排气通道的两端分别与所述出气腔和所述出气口连通。
  12. 根据权利要求11所述的气泵，其特征在于，所述第二排气管伸入所述第一排气管内，所述第二排气管的外壁与所述第一排气管的内壁彼此间隔开以限定出所述排气通道。
  13. 根据权利要求12所述的气泵，其特征在于，所述第一排气管的顶部设有至少一个第一连通孔以将所述排气通道与所述出气腔连通，所述第二排气管的底端敞开且沿所述出气口的方向延伸。
  14. 根据权利要求13所述的气泵，其特征在于，所述第一连通孔为两个且所述两个第一连通孔沿所述第一排气管的径向相对。
  15. 根据权利要求11所述的气泵，其特征在于，所述第一排气管的顶部设有至少一个第一连通孔以将所述排气通道与所述出气腔连通，所述第二排气管伸入所述第一排气管的一端为密封端，所述第二排气管的周壁设有至少一个第二连通孔以将所述排气通道与所述出气口连通。
  16. 根据权利要求15所述的气泵，其特征在于，所述第二排气管伸入所述第一排气管的一端固定在所述第一排气管的底面，所述第二连通孔为两个且所述两个第二连通孔沿所述第二排气管的径向相对，所述第一连通孔与所述第二连通孔径向方向交错设置。
PCT/CN2015/079323 2014-09-12 2015-05-19 气泵 WO2016037492A1 (zh)

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