CN218177410U

CN218177410U - Diaphragm air pump head and air pump with air discharging function

Info

Publication number: CN218177410U
Application number: CN202222509036.5U
Authority: CN
Inventors: 向连玉; 冯胜
Original assignee: Shenzhen Skoocom Electronic Co ltd
Current assignee: Shenzhen Skoocom Electronic Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2022-12-30
Anticipated expiration: 2032-09-21

Abstract

The utility model discloses a diaphragm air pump head and an air pump with an air discharging function, wherein the pump head comprises a valve plate, a pump head cover, an elastic diaphragm and a normally closed one-way valve, the pump head cover is positioned above the valve plate, and the pump head cover is provided with an inflating opening and an air discharging opening; the elastic diaphragm is arranged between the valve plate and the pump head cover in a sealing mode, a first air chamber is defined between the elastic diaphragm and the valve plate, and a second air chamber is defined between the elastic diaphragm and the pump head cover; the normally closed check valve is arranged on the valve plate to control the gas in the diaphragm pump body to enter the first air chamber in a one-way mode; the elastic diaphragm is provided with a first tympanic membrane and a second tympanic membrane which protrude towards the second air chamber, the first tympanic membrane is provided with an opening and closing hole, and the valve plate is provided with a plug which protrudes towards the first air chamber and closes the opening and closing hole. According to the utility model discloses an air pump with gassing function can realize aerifing function and gassing function, in concrete application, can reduce configurations such as snuffle valve, simplifies the product structure, and reduce cost, simultaneously, the gassing function is more reliable and more stable.

Description

Diaphragm air pump head and air pump with air discharging function

Technical Field

The utility model relates to an air pump especially relates to a diaphragm air pump head and have air pump of gassing function.

Background

Some electronic devices require inflation by an air pump, such as a smart sports watch, an electronic sphygmomanometer, and the like, and for these electronic devices, the inflation amount is small, and a diaphragm air pump is generally used as the inflation device. However, when air is released, an air release valve, such as a solenoid valve, is usually used to release the air filled in the electronic device, and this design is complicated in structure, requires an independent air release valve to be configured, a release air path to be connected to the air release valve, and a control circuit to perform control, and thus, may cause problems of low reliability, high cost, and the like.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model aims to provide a diaphragm air pump head and have air pump of gassing function.

In order to realize above-mentioned purpose, on the one hand, according to the utility model discloses diaphragm air pump head is suitable for and installs on the diaphragm pump body, and it includes:

a valve plate;

the pump head cover is positioned above the valve plate, and is provided with an inflation opening and an air leakage opening;

the elastic diaphragm is arranged between the valve plate and the pump head cover in a sealing mode, a first air chamber is defined between the elastic diaphragm and the valve plate, and a second air chamber is defined between the elastic diaphragm and the pump head cover;

the normally closed one-way valve is arranged on the valve plate so as to control gas in the diaphragm pump body to enter the first air chamber in a one-way mode;

the elastic diaphragm is provided with a first tympanic membrane and a second tympanic membrane which protrude towards the second air chamber, the first tympanic membrane is provided with an opening and closing hole, the valve plate is provided with a plug which protrudes towards the first air chamber, and the plug closes the opening and closing hole;

in an inflation state, gas in the diaphragm pump body flows into the first air chamber, the first diaphragm is forced to deform upwards to open the opening and closing hole, and the second diaphragm deforms upwards to seal the air release opening; in the deflation state, the gas in the air receiving equipment flows back to the second air chamber from the inflation port, the first tympanic membrane is forced to deform downwards to seal the opening and closing hole, and the second tympanic membrane deforms downwards to open the air release port.

In addition, according to the utility model discloses above-mentioned diaphragm air pump head of embodiment can also have following additional technical characterstic:

according to the utility model discloses an embodiment, the pump head cover has to the convex air cock portion of second air chamber, the mouth that loses heart runs through downwards the mouth that loses heart works as when atmospheric pressure increases in the first air chamber, the second tympanic membrane upwards warp and pastes the mouth that loses heart is in order to seal.

According to the utility model discloses an embodiment, the end cap is cylindric, the end cap diameter is greater than open the diameter of obturator, the end cap is located open obturator below and support and paste in order to seal on the first tympanic membrane open the obturator.

According to the utility model discloses an embodiment, the top of end cap has toper location portion, toper location portion reduces gradually from bottom to top diameter, it establishes to open and close the pot head on the toper location portion and form sealedly.

According to the utility model discloses an embodiment, elastic diaphragm is the elastic colloid material, and it includes:

a frame portion interposed between the valve plate and the pump head cover;

the membrane part is formed inside the frame part, and the first tympanic membrane and the second tympanic membrane are formed by upwards protruding two local positions on the membrane part.

According to the utility model discloses an embodiment, the top surface of diaphragm portion is equipped with the department of blocking, the department of blocking is located between first tympanic membrane and the second tympanic membrane and with the pump head cover offsets.

According to an embodiment of the present invention, the longitudinal cross-section of the first eardrum and the second eardrum is an upwardly convex arc.

According to the utility model discloses an embodiment, the interior top surface of pump head lid is equipped with the circular recess, the diameter of circular recess is greater than the diameter of end cap, toper location portion is located in the circular recess and coaxial the arranging, with through the circular recess restriction open aperture when the obturator is opened.

On the other hand, according to the utility model discloses air pump with gassing function, include:

the diaphragm pump body comprises a diaphragm piece and a driving mechanism, the diaphragm piece is provided with at least two leather cups, and the driving mechanism is connected with the diaphragm piece and used for driving the leather cups to alternately generate air suction action and air exhaust action;

the diaphragm air pump head as described above, the valve plate is disposed on the diaphragm pump body in a sealing manner and seals the cup, and the normally closed one-way valve is configured to allow the gas in the cup to flow into the first air chamber in one direction.

According to the utility model discloses an embodiment, actuating mechanism includes:

a pump mount, said diaphragm member being mounted on top of said pump mount;

the motor is arranged at the bottom of the pump base;

the eccentric wheel is arranged on an output shaft of the motor;

the swinging frame is connected with the eccentric wheel through an inclined pin and is provided with at least two connecting parts, at least two connecting parts are in one-to-one correspondence with at least two leather cups, and each connecting part is connected with the bottom of the corresponding leather cup;

the leather cup is characterized in that the connecting part is provided with an air suction hole, the bottom of the leather cup is provided with a valve plate for sealing the air suction hole, and when the leather cup is converted from a compression state to an extension state, negative pressure in the leather cup forces the valve plate to deform upwards to open the air suction hole, so that air is sucked through the air suction hole.

According to the diaphragm air pump head and the air pump with the air release function provided by the embodiment of the utility model, the inflation function and the air release function can be realized, in the inflation state, the air in the diaphragm pump body flows into the first air chamber, the first tympanic membrane is forced to deform upwards to open the closed hole, the second tympanic membrane deforms upwards to seal the air release opening, the air in the first air chamber enters the second air chamber from the opening and closing hole, and the air receiving equipment is inflated through the air release opening; under the gassing state, the air pump stop work, atmospheric pressure in the first air chamber reduces, receive the gas in the gas equipment from inflating the mouth and flow back to the second air chamber, force first eardrum downward deformation and seal and open the obturator, the second eardrum downward deformation and open disappointing mouthful, gas can be followed and lost circulation mouthful discharge, so, in concrete application, can reduce configurations such as release valve and relevant gas release pipeline, control circuit, simplify the product structure, and the cost is reduced, and simultaneously, the gassing function is more reliable and more stable.

Additional aspects and advantages of the invention 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 invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a diaphragm air pump head according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a diaphragm air pump head according to an embodiment of the present invention;

fig. 3 is an exploded view of a diaphragm air pump head according to an embodiment of the present invention;

fig. 4 is a sectional view of the diaphragm air pump head according to the embodiment of the present invention in an exploded state;

fig. 5 is a schematic structural diagram of an air pump with an air bleeding function (in a state where a pump head of a diaphragm air pump and a pump body of the diaphragm air pump are separated) according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an air pump with air bleeding function according to an embodiment of the present invention;

fig. 7 is a sectional view of an air pump with air bleeding function (the diaphragm air pump head and the diaphragm pump body are in a detached state) according to an embodiment of the present invention;

fig. 8 is an exploded view of a diaphragm pump body in an air pump with a deflation function according to an embodiment of the present invention.

Reference numerals:

10. a valve plate;

101. a plug;

1011. a tapered locating portion;

h10, valve hole;

h100, a first gas chamber;

11. a pump head cover;

111. an air nozzle part;

h11a and an inflation inlet;

h11b and an air leakage port;

h11c, circular groove;

h110, a second air chamber;

12. an elastic diaphragm;

121. a frame portion;

122. a diaphragm portion;

122a, a first tympanic membrane;

h12, opening and closing the hole;

122b, a second tympanic membrane;

123. a resisting part;

13. a normally closed check valve;

20. a diaphragm pump body;

201. a diaphragm member;

2011. a leather cup;

2011a, valve plate;

202. a motor;

203. a pump mount;

204. an eccentric wheel;

205. a swing frame;

2051. a connecting portion;

h205, a suction hole;

206. and (4) oblique pins.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

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 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 drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, 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 specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The following describes in detail a diaphragm air pump head and an air pump with an air bleeding function according to embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1 to 4, according to the present invention, a diaphragm air pump head is suitable for being installed on a diaphragm pump body 20, and is assembled to form a diaphragm air pump, which can be used for inflating and deflating a pneumatic device, such as a smart sports watch (having a blood pressure measuring function), an electronic sphygmomanometer, and includes a valve plate 10, a pump head cover 11, an elastic diaphragm 12, and a normally closed check valve 13.

Specifically, the valve plate 10 may be mounted on the diaphragm pump body 20, and the diaphragm pump body 20 may generate a suction action and a discharge action, and after the suction action sucks in gas, the discharge action discharges the gas into the diaphragm air pump head through the valve plate 10.

Pump head lid 11 is located valve plate 10 top, pump head lid 11 is last to have inflation inlet H11a and disappearing mouth H11b, and wherein, inflation inlet H11a is used for aerifing to the equipment of receiving of outside, for example intelligent sports wrist-watch, electronic sphygmomanometer etc.. The air leakage opening H11b is used for discharging air to the air receiving equipment, and air in the air receiving equipment can flow back to the pump head of the diaphragm air pump and then is discharged from the air leakage opening H11b.

The elastic diaphragm 12 is hermetically arranged between the valve plate 10 and the pump head cover 11, a first air chamber H100 is defined between the elastic diaphragm 12 and the valve plate 10, and a second air chamber H110 is defined between the elastic diaphragm 12 and the pump head cover 11. A normally closed check valve 13 is provided on the valve plate 10 to control one-way entry of gas in the diaphragm pump body 20 into the first gas chamber H100. That is, the diaphragm pump body 20 can inflate the first air chamber H100 through the normally closed check valve 13, the normally closed check valve 13 is kept in a closed state when not inflated, and the normally closed check valve 13 is opened when inflated, so that the air can be inflated into the first air chamber H100. The second air chamber H110 is communicated with the inflation opening H11a and the deflation opening H11b, when inflation is performed, the air in the second air chamber H110 can flow into the inflation opening H11a, the air is inflated to the air-receiving device through the inflation opening H11a, and when deflation is performed, the air in the air-receiving device can flow back to the second air chamber H110 and is discharged through the deflation opening H11b.

The elastic membrane 12 has a first tympanic membrane 122a and a second tympanic membrane 122b protruding toward the second air chamber H110, the first tympanic membrane 122a has an opening/closing hole H12, the valve plate 10 has a plug 101 protruding toward the first air chamber H100, and the plug 101 closes the opening/closing hole H12. The elastic diaphragm 12 can be made of elastic plastic material, such as silicone rubber, silicon rubber, fluorine rubber, nitrile rubber, neoprene rubber, etc.

In the inflated state, the gas in the diaphragm pump body 20 flows into the first air chamber H100, so that the first tympanic membrane 122a is forced to deform upwards to open the opening and closing hole H12, and the second tympanic membrane 122b deforms upwards to seal the air release hole H11b; in the deflation state, the gas in the air receiving device flows back to the second air chamber H110 from the inflation port H11a, the first tympanic membrane 122a is forced to deform downwards to seal the opening/closing hole H12, and the second tympanic membrane 122b deforms downwards to open the deflation port H11b.

That is to say, the first tympanic membrane 122a on the elastic membrane 12 can cooperate with the plug 101 to control the opening and closing of the opening and closing hole H12 on the first tympanic membrane 122a, and further to control the communication between the first air chamber H100 and the second air chamber H110, when the first air chamber H100 is communicated with the second air chamber H110, the gas in the first air chamber H100 can be charged into the second air chamber H110, and then charged through the charging port H11a of the second air chamber H110, and the second tympanic membrane 122b can be used to control the opening and closing of the discharging port H11b in the second air chamber H110, when the discharging port H11b is closed, the normal charging state is ensured, when the discharging port H11b opens the closed hole H12, the gas in the air receiving device is allowed to enter the second air chamber H110, and then discharged through the discharging port H11b, and further to control and switch the charging state and the discharging state.

In a specific application, when inflation is required, the diaphragm pump body 20 sucks in gas by using a suction action, and discharges the gas into the first air chamber H100 through the normally-closed one-way valve 13 by using a discharge action, at this time, the air pressure in the first air chamber H100 increases, the first tympanic membrane 122a and the second tympanic membrane 122b are forced to deform upwards after the air pressure increases, the first tympanic membrane 122a deforms upwards to further separate the first tympanic membrane 122a from the plug 101, and then the closed hole H12 is opened, and the second tympanic membrane 122b deforms upwards to abut against the inner wall of the pump head cover 11 to close the air release hole H11b, so that the gas in the first air chamber H100 can enter the second air chamber H110 through the open closed hole H12, and the air release hole H11b in the second air chamber H110 is closed by the second tympanic membrane 122b, and at this time, the gas in the second air chamber H110 can only pass through the inflation hole H11a to the air receiving device, thereby implementing inflation of the air receiving device.

When the air needs to be discharged, the diaphragm pump body 20 stops working, at this time, the air pressure in the first air chamber H100 is reduced, and because the air pressure in the air receiving equipment is high, the air in the air receiving equipment flows back to the second air chamber H110, so that the air pressure in the second air chamber H110 is increased, the first tympanic membrane 122a and the second tympanic membrane 122b are forced to deform and reset downwards, the first tympanic membrane 122a resets downwards and is attached to the plug 101, the plug 101 can close the open-close hole H12 again, and the second tympanic membrane 122b deforms and resets downwards and can be separated from the inner wall of the pump head cover 11 to open the air release hole H11b, so that the air in the second air chamber H110 can only be discharged through the air release hole H11b, and the air receiving equipment can be discharged.

According to the embodiment of the present invention, the diaphragm air pump head can realize the inflation function and the deflation function, in the inflation state, the air in the diaphragm pump body 20 flows into the first air chamber H100, the first tympanic membrane 122a is forced to deform upwards to open the opening and closing hole H12, the second tympanic membrane 122b deforms upwards to seal the air release opening H11b, the air in the first air chamber H100 enters the second air chamber H110 from the opening and closing hole H12, and the air receiving device is inflated through the inflation opening H11 a; in the deflation state, the air pump stops working, the air pressure in the first air chamber H100 is reduced, the air in the air receiving equipment flows back to the second air chamber H110 from the air inflation port H11a, the first eardrum 122a is forced to deform downwards to seal the opening and closing hole H12, the second eardrum 122b deforms downwards to open the air deflation port H11b, and the air can be discharged from the air deflation port H11b.

Referring to fig. 2 and 4, in an embodiment of the present invention, the pump head cover 11 has an air nozzle portion 111 protruding toward the second air chamber H110, the air release opening H11b penetrates through the air nozzle portion 111 downward, and when the air pressure in the first air chamber H100 increases, the second tympanic membrane 122b deforms upward to abut against the air nozzle portion 111 to seal the air release opening H11b.

In this embodiment, the air nozzle portion 111 communicating with the air release opening H11b is disposed on the inner top surface of the second air chamber H110, and the air nozzle portion 111 protrudes downward, so that when the first air chamber H100 is inflated, the second eardrum 122b deforms upward and easily abuts against the air nozzle portion 111, and further seals the air nozzle portion 111, so as to close the air release opening H11b, thereby ensuring the reliability and stability of the sealing of the air release opening H11b.

Referring to fig. 2, in an embodiment of the present invention, the plug 101 is cylindrical, the diameter of the plug 101 is larger than the diameter of the opening hole H12, and the plug 101 is located below the opening hole H12 and abuts against the first tympanic membrane 122a to seal the opening hole H12.

That is to say, in this embodiment, the plug 101 with a diameter larger than the opening/closing hole H12 upwards supports against the first tympanic membrane 122a, so that the opening/closing hole H12 on the first tympanic membrane 122a is closed, and thus, the structural design can ensure that the opening/closing hole H12 can be closed, and also can ensure that when the first tympanic membrane 122a is inflated and the first air chamber H100 is deformed upwards, the part around the opening/closing hole H12 can be quickly and timely pushed open, so as to open the closing hole H12, thereby improving the opening reliability of the opening/closing hole H12.

Referring to fig. 2 and 4, in an embodiment of the present invention, the top of the plug 101 has a tapered positioning portion 1011, the diameter of the tapered positioning portion 1011 decreases gradually from bottom to top, and the opening and closing hole H12 is sleeved on the tapered positioning portion 1011 and forms a seal.

In this embodiment, wear the cover setting through toper location portion 1011 and open and close hole H12, for example, open the peripheryof hole H12 and the conical surface in close contact with of toper location portion 1011 and form sealedly, can reach good sealed effect, and, when first air chamber H100 aerifys, open and close peripheryof hole H12 and the conical surface separation of toper location portion 1011 form the clearance, and then realize opening of opening the obturator hole H12, this kind of cooperation structure, open and close the in-process, can keep toper location portion 1011 and open and close the relative position relation between the hole H12 all the time, for example toper location portion 1011 keeps coaxial state with opening and close hole H12, and then guaranteed opening and closing of opening and close hole H12 very reliably.

In an embodiment of the present invention, the elastic diaphragm 12 is made of elastic gel material, and includes a frame portion 121 and a diaphragm portion 122, the frame portion 121 is sandwiched between the valve plate 10 and the pump head cover 11; the film portion 122 is formed inside the frame portion 121, and the first tympanic membrane 122a and the second tympanic membrane 122b are formed by upwardly protruding two local positions on the film portion 122.

That is, the elastic diaphragm 12 is mainly composed of the frame portion 121 and the diaphragm portion 122, and the frame portion 121 is thick and interposed between the valve plate 10 and the pump head cover 11, thereby facilitating the sealing state. The membrane portion 122 is formed in the frame portion 121, and has a relatively thin thickness, and the first tympanic membrane 122a and the second tympanic membrane 122b protruding upward are formed on the membrane portion 122, so that the first tympanic membrane 122a and the second tympanic membrane 122b having relatively thin thicknesses are more easily deformed upward, thereby stably opening the opening and closing hole H12 and closing the air release hole H11b.

Preferably, the top surface of the membrane portion 122 is provided with a resisting portion 123, the resisting portion 123 is located between the first tympanic membrane 122a and the second tympanic membrane 122b and is abutted to the pump head cover 11, so that the resisting portion 123 is abutted to the pump head cover 11, and it can be ensured that only the first tympanic membrane 122a and the second tympanic membrane 122b deform upward when the first air chamber H100 is inflated, and a portion between the first tympanic membrane 122a and the second tympanic membrane 122b cannot deform upward due to the resisting effect of the resisting portion 123 and the pump head cover 11, thereby ensuring that the first tympanic membrane 122a and the second tympanic membrane 122b on the membrane portion 122 deform upward accurately when the first air chamber H100 is inflated, and further improving the opening and closing control effect of the opening and closing hole H12 and the air release hole H11b.

Advantageously, the longitudinal cross-section of the first tympanic membrane 122a and the second tympanic membrane 122b is an upward convex arc, and the upward convex arc is easily deformed in an arc direction after being subjected to the air pressure, and ensures that the center of the arc is in close contact with the stopper 101 and the pump head cover 11.

Referring to fig. 2, in an embodiment of the present invention, the inner top surface of the pump head cover 11 is provided with a circular groove H11c, the diameter of the circular groove H11c is larger than that of the end cap 101, and the tapered positioning portion 1011 is located in the circular groove H11c and coaxially arranged to limit the opening degree of the opening hole H12 when opened through the circular groove H11 c. Preferably, when the peripheral edge of the opening and closing hole H12 is sleeved on the tapered positioning portion 1011, a predetermined gap is formed between the outer surface of the peripheral edge of the opening and closing hole H12 and the opening of the circular groove H11c, and the predetermined gap can limit the outward deformation amount of the peripheral edge of the opening and closing hole H12, so as to limit the opening degree.

In this embodiment, set up circular recess H11c through the interior top surface at pump head lid 11 to utilize former groove and toper location portion 1011 and open and close the position relation between the hole H12, can restrict the aperture of opening and close hole H12, ensure to open and close hole H12 and open and close the long-time use of control and also can remain stable, long service life, the stable performance is reliable.

Referring to fig. 5 to 8, an air pump with an air bleeding function according to an embodiment of the present invention includes a diaphragm pump body 20 and a diaphragm air pump head as in the above embodiments.

Specifically, the diaphragm pump body 20 includes a diaphragm member 201 and a driving mechanism, the diaphragm member 201 has at least two cups 2011, and the driving mechanism is connected to the diaphragm member 201 and is used for driving the cups 2011 to alternately generate a suction action and a discharge action.

The valve plate 10 is disposed on the diaphragm pump body 20 in a sealing manner and seals the cup 2011, and the normally closed one-way valve 13 is configured to allow gas in the cup 2011 to flow into the first air chamber H100 in one direction.

In specific work, during inflation, the driving mechanism drives the leather cup 2011 on the diaphragm member 201 to compress or extend to reset, air is sucked into the leather cup 2011 through air suction action (the leather cup 2011 extends to reset), then air in the leather cup 2011 is discharged into the first air chamber H100 through the normally closed one-way valve 13 through air exhaust action (the leather cup 2011 compresses), the first eardrum 122a and the second eardrum 122b deform upwards, the first eardrum 122a deforms upwards to open the closed hole H12, and the second eardrum 122b deforms upwards to close the air release hole H11b, so that air in the first air chamber H100 can enter the second air chamber H110 through the closed hole H12, and then the air inflation hole H11a is inflated into the air receiving equipment, so that the air receiving equipment is inflated.

When the air needs to be discharged, the driving mechanism stops working, the air in the air receiving equipment flows back to the second air chamber H110, the first eardrum 122a and the second eardrum 122b are forced to deform and reset downwards, the first eardrum 122a resets downwards and is attached to the opening and closing hole H12 in a resealing mode, the second eardrum 122b deforms and resets downwards and can open the air release hole H11b in a resealing mode, and therefore the air in the second air chamber H110 is discharged through the air release hole H11b, and the air discharging of the air receiving equipment is achieved.

According to the utility model provides an air pump with gassing function can realize aerifing function and gassing function, in concrete application, can reduce configurations such as snuffle valve and relevant gas release pipeline, control circuit, simplifies the product structure, reduce cost, and simultaneously, the gassing function is more reliable and more stable.

Illustratively, the normally closed check valve 13 on the valve plate 10 is an umbrella valve, the umbrella valve is fixed on the valve plate 10, the valve plate 10 surrounds a plurality of valve holes H10 of the umbrella valve, and the inner umbrella surface of the umbrella valve is tightly attached to the top surface of the valve plate 10 to close the plurality of valve holes H10. When the leather cup 2011 is compressed, the air pressure in the leather cup 2011 is increased, so that the umbrella valve is forced to deform upwards to open the valve hole H10, and one-way conduction from the leather cup 2011 to the first air chamber H100 is realized.

Referring to fig. 7 to 8, in an embodiment of the present invention, the driving mechanism includes a pump base 203, a motor 202, an eccentric 204 and a swing frame 205, and a diaphragm 201 is mounted on the top of the pump base 203; the motor 202 is arranged at the bottom of the pump seat 203; an eccentric 204 is mounted on the output shaft of the motor 202.

The swing frame 205 is connected with the eccentric wheel 204 through an oblique pin 206, the swing frame 205 is provided with at least two connecting parts 2051, at least one connecting part 2051 is in one-to-one correspondence with at least two leather cups 2011, and each connecting part 2051 is connected with the bottom of the corresponding leather cup 2011.

The connecting part 2051 is provided with an air suction hole H205, the bottom of the leather cup 2011 is provided with a valve plate 2011a for sealing the air suction hole H205, when the leather cup 2011 is converted from a compression state to an extension state, negative pressure in the leather cup 2011 forces the valve plate 2011a to deform upwards to open the air suction hole H205, and air is sucked through the air suction hole H205.

When the motor 202 works, the motor 202 drives the eccentric wheel 204 to rotate, the inclined pin 206 on the eccentric wheel 204 can drive the swing frame 205 to swing in a circumferential reciprocating manner, the connecting part 2051 on the swing frame 205 can generate a compression or stretching effect on the upper leather cup 2011, part of the leather cup 2011 is compressed, the other part of the leather cup 2011 is stretched, when the leather cup 2011 is stretched, the normally closed one-way valve 13 is kept closed, negative pressure is formed in the leather cup 2011, under the negative pressure effect, the valve sheet 2011a at the bottom of the leather cup 2011 deforms towards the leather cup 2011 to be separated from the upper end of the connecting part 2051, the air suction hole H205 on the connecting part is opened, external air can enter the leather cup 2011, when the leather cup 2011 is compressed, the air pressure in the leather cup 2011 is increased, the valve sheet 2011a at the bottom of the leather cup is forced to cling to the upper end of the connecting part 2051, the air suction hole H205 is kept closed, the normally closed one-way valve 13 on the valve plate 10 is opened under the action of air pressure, and the first air suction chamber 100 and the air charging action and the first air charging action can be completed.

In this embodiment, adopt above-mentioned structural design, its valve block 2011a cooperation through connecting portion 2051 and leather cup 2011 bottom to and the cooperation of type check valve 13 that closes has realized breathing in and exhausting simply, and its simple structure guarantees effectively fully to inflate at every turn, and the process of aerifing is stable high-efficient, the dependable performance, and is with low costs.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all be in the utility model discloses a under the design, utilize the equivalent structure transform of what the content of the description and the attached drawing was done, or direct/indirect application all includes in other relevant technical field the utility model discloses a patent protection is within range.

Claims

1. A diaphragm air pump head adapted to be mounted on a diaphragm pump body, comprising:

a valve plate;

the elastic diaphragm is provided with a first tympanic membrane and a second tympanic membrane which protrude towards a second air chamber, the first tympanic membrane is provided with an opening and closing hole, the valve plate is provided with a plug which protrudes towards the first air chamber, and the plug closes the opening and closing hole;

2. A diaphragm air pump head as claimed in claim 1, wherein the pump head cover has an air nipple projecting into the second air chamber, the air vent extends downwardly through the air nipple, and when air pressure increases in the first air chamber, the second tympanic membrane deforms upwardly to abut against the air nipple to seal the air vent.

3. A diaphragm air pump head as defined in claim 1, wherein the plug is cylindrical, has a diameter greater than that of the opening and closing hole, and is positioned below the opening and closing hole and abuts against the first tympanic membrane to seal the opening and closing hole.

4. A diaphragm air pump head as claimed in claim 3, wherein the top of the plug has a tapered locating portion, the diameter of the tapered locating portion gradually decreases from bottom to top, and the opening and closing hole is sleeved on the tapered locating portion to form a seal.

5. A diaphragm air pump head as claimed in claim 1, wherein the elastic diaphragm is made of elastic gel material, which includes:

a frame portion interposed between the valve plate and the pump head cover;

6. A diaphragm air pump head as claimed in claim 5, wherein the top surface of the diaphragm portion is provided with a stop which is located between the first and second tympanic membranes and which abuts the pump head cover.

7. A diaphragm air pump head according to claim 1, wherein the longitudinal cross-sections of the first and second tympanic membranes are upwardly convex arc-shaped.

8. The diaphragm air pump head of claim 4, wherein the inner top surface of the pump head cover is provided with a circular groove having a diameter larger than that of the plug, and the tapered positioning portion is positioned in the circular groove and coaxially arranged to limit the opening degree of the opening and closing hole when opened by the circular groove.

9. An air pump with air bleeding function, comprising:

the diaphragm air pump head of any of claims 1 to 8, said valve plate sealingly disposed on said diaphragm pump body and sealing said cup, said normally closed one-way valve configured to allow one-way flow of air within said cup into said first air chamber.

10. The air pump with air bleeding function according to claim 9, wherein said driving mechanism comprises:

a pump mount, said diaphragm member being mounted on top of said pump mount;

the motor is arranged at the bottom of the pump base;

the eccentric wheel is arranged on an output shaft of the motor;

the leather cup is characterized in that a suction hole is formed in the connecting portion, a valve plate for sealing the suction hole is arranged at the bottom of the leather cup, when the leather cup is converted from a compression state to an extension state, negative pressure in the leather cup forces the valve plate to deform upwards to open the suction hole, and air is sucked through the suction hole.