CN215979814U

CN215979814U - Air supply device and micro air pump with same

Info

Publication number: CN215979814U
Application number: CN202121931235.4U
Authority: CN
Inventors: 杨海斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-03-08
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses an air supply device and a micro air pump with the same. The air supply device comprises a bag body and a cover body which is pressed on the bag body, the bag body comprises a bag cavity with an upward opening, an air inlet groove, an air inflation groove and an air inlet communicated with the air inlet groove, a first positioning part and an air inlet part are arranged on the peripheral wall of the air inlet groove, and the air inlet part is positioned between the air inlet groove and the bag cavity. The lid includes first locating plug and aerifys the post, and first locating plug is inserted and is located the air inlet duct and connect utricule and lid with the cooperation of air inlet portion, aerifys the post and has the way of aerifing that communicates the air inlet duct. When the stretched volume of the bag cavity is increased, the external air enters the air inlet groove through the air inlet and enters the bag cavity through the air inlet part; when the volume of the bag cavity is reduced by compression, the air inlet part is closed, and the air in the bag cavity enters the inflation groove and is exhausted through the inflation channel. Therefore, the bag body is provided with a plurality of parts, an air inlet valve and an air outlet valve mechanism do not need to be additionally and independently arranged, the parts are few, the assembly is easy, and the cost is low.

Description

Air supply device and micro air pump with same

Technical Field

The utility model relates to the technical field of pumps, in particular to an air supply device and a micro air pump with the same.

Background

The micro air pump is a pump with reduced volume, and the volume of the micro air pump depends on the volume of each component of the micro air pump. The existing miniature air pump generally comprises a motor, a valve mechanism, an air supply air bag, a linkage rod for driving a piston of the air supply air bag to move, and a push rod, wherein the valve mechanism comprises a valve seat, an air inlet valve plate, an air outlet valve plate and the like. The motor drives the linkage rod to eccentrically rotate to push the push rod to drive the air supply air bag to move up and down, so that the volume in the air bag cavity is changed, and air supply of the pump is realized. Because the existing miniature air pump has more and tiny components, the production cost is high, the assembly is complex, and the volume of the miniature air pump is increased to a certain extent by a plurality of components.

In order to solve the problems, the utility model provides the air supply device and the miniature air pump which have the advantages of few parts, simple structure, easy assembly and low cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an air supply device and a miniature air pump which have the advantages of few parts, simple structure, easy assembly and low cost.

In order to achieve the purpose, the utility model provides an air supply device, which comprises a bag body and a cover body, wherein the cover body is pressed on the bag body, the bag body comprises a bag cavity with an upward opening, an air inlet groove, an air charging groove and an air inlet communicated with the air inlet groove, the upper surface of the bag body is concave downwards to form the air inlet groove, the peripheral wall of the air inlet groove is provided with a first positioning part and an air inlet part, and the air inlet part is positioned between the air inlet groove and the bag cavity; the cover body comprises a first positioning plug and an inflation column, the first positioning plug is inserted in the air inlet groove, matched with the first positioning part and the air inlet part and connected with the bag body and the cover body, and the inflation column is provided with an inflation channel communicated with the inflation groove; when the stretched volume of the bag cavity is increased, the external air enters the air inlet groove through the air inlet and enters the bag cavity through the air inlet part; when the volume of the bag cavity is reduced by compression, the air inlet part is closed, and the air in the bag cavity enters the inflation groove and is exhausted through the inflation channel.

Compared with the prior art, the air supply device comprises the bag body and the cover body which is pressed on the bag body, wherein the bag body comprises a bag cavity with an upward opening, an air inlet groove, an air charging groove and an air inlet communicated with the air inlet groove, the peripheral wall of the air inlet groove is provided with the first positioning part and the air inlet part, and the air inlet part is positioned between the air inlet groove and the bag cavity. The lid includes first locating plug and aerifys the post, and first locating plug is inserted and is located the air inlet duct and connect utricule and lid with the cooperation of air inlet portion, aerifys the post and has the way of aerifing that communicates the air inlet duct. When the stretched volume of the bag cavity is increased, the external air enters the air inlet groove through the air inlet and enters the bag cavity through the air inlet part; when the volume of the bag cavity is reduced by compression, the air inlet part is closed, and the air in the bag cavity enters the inflation groove and is exhausted through the inflation channel. Therefore, the bag body is provided with a plurality of parts, an air inlet valve and an air outlet valve mechanism do not need to be additionally and independently arranged, the parts are few, the assembly is easy, and the cost is low.

Specifically, the bag body comprises a base plate, the bag cavity, the air inlet groove and the inflation groove are arranged on the base plate at intervals, and the air inlet part is a thin wall formed at the joint of the peripheral wall of the air inlet groove and the peripheral wall of the bag cavity.

Specifically, a gap is arranged on the peripheral wall of the bag cavity adjacent to the air inlet part.

Specifically, the upper surface of the substrate has a protruding sealing rib, and the cover body is pressed against the sealing rib.

Specifically, the upper surface of the bag body is recessed to form an inflation groove, the peripheral wall of the bag cavity is provided with a second positioning part and an inflation part, and the inflation part is a thin wall formed at the joint of the peripheral wall of the bag cavity and the peripheral wall of the inflation groove; the cover body protrudes downwards to form a second positioning plug, and the second positioning plug is inserted into the bag cavity and is jointed with the second positioning part and the inflating part so as to connect the cover body and the bag body; when the bag cavity is compressed, the air inlet part is closed, and the air in the bag cavity separated by the inflating part and the second positioning plug enters the inflating groove from the inflating part and is exhausted through the inflating channel.

Specifically, the air inlet is opened in the bottom of air inlet tank, and air supply installation still includes the fixing base that is used for fixed utricule, has the inlet port relative with the air inlet on the fixing base.

Specifically, the peripheral wall of the cover body is provided with a positioning piece for fixing the cover body, the bag body and the fixing seat.

Specifically, a plurality of lightening holes are formed in the cover body.

The utility model also provides a micro air pump which comprises a motor, a cylinder body connected with the motor, a connecting rod and the air supply device, wherein the bag body of the air supply device is detachably connected with the connecting rod, and the motor is connected with and drives the connecting rod so as to drive the bag body to be stretched or compressed to realize air suction and air exhaust of the bag cavity.

Preferably, the connecting rod is provided with a mounting hole with a mounting notch, and the lower end of the bag body is mounted in the mounting hole.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the micro air pump of the present invention.

Fig. 2 is an exploded view of the micro air pump shown in fig. 1.

FIG. 3 is an exploded view of the micro air pump shown in FIG. 1 from another angle.

Fig. 4 is a sectional view of the micro air pump shown in fig. 1.

Fig. 5 is a perspective view of a portion of the structure of the micro air pump shown in fig. 1.

Fig. 6 is a schematic structural view of an embodiment of a capsule of the air supply device.

Fig. 7 is a schematic view illustrating another angle of the balloon of the air supply device.

Description of the symbols

A micro air pump 100; a motor 10; a drive shaft 11; an eccentric wheel 12; a cylinder body 20; a screw 21; a connecting rod 30; a mounting plate 31; a coupling shaft 32; a mounting hole 33; mounting notches 34; an air supply device 40; a balloon 41; a substrate 411; a capsule cavity 412; a second positioning portion 4121; an inflation portion 4122; an air inlet groove 413; a first positioning portion 4131; an intake portion 4132; a notch 4133; an inflation channel 414; an air inlet 415; a sealing rib 416; a first positioning notch 417; a cover 42; a gas-filled column 421; a first positioning plug 422; a second positioning plug 423; the air charging passage 424; a positioning member 425; lightening holes 426; a fixed base 43; an air intake hole 431; a housing hole 432; a second positioning indentation 433; a positioning groove 434; engaging part 435

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 4, the present invention provides a micro air pump 100 including a motor 10, a cylinder 20 connected to the motor 10, a connecting rod 30, and an air supply device 40. The upper end of the motor 10 is in threaded connection with the lower end of the cylinder body 20, specifically, a threaded hole is formed in the upper end of the motor 10, a screw 21 is fixed to the lower end of the cylinder body 20, and the motor 10 and the cylinder body 20 are in threaded connection and fixed. The connecting rod 30 may be connected to the driving shaft 11 of the motor 10 through an eccentric 12, and the air supply device 40 may be detachably connected to the connecting rod 30. Of course, the connection mode between the motor 10 and the cylinder 20 and the connection mode between the connecting rod 30 and the motor 10 are not limited to these, for example, the motor 10 and the cylinder 20 may be connected by welding or by a snap connection, a snap groove is formed on the housing of the motor 10, and a snap hook is provided on the cylinder 20 and connected by the snap hook and the snap groove. Therefore, the motor 10 drives the link 30 to drive the air supplier 40 to move up and down for supplying air.

Referring to fig. 2 to 7, the air supply device 40 includes a bag 41, a cover 42 press-fitted to the bag 41, and a fixing base 43 for fixing the bag 41. The bag body 41 comprises a base plate 411 and a bag cavity 412 which is arranged on the base plate 411 at intervals and has an upward opening, an air inlet groove 413, an air inflation groove 414 and an air inlet 415 communicated with the air inlet groove 413. The upper surface of the base 411 is recessed to form an air inlet groove 413, and the bottom of the air inlet groove 413 is provided with an air inlet 415. The intake groove 413 has a first positioning portion 4131 and an intake portion 4132 at a peripheral wall thereof, and the intake portion 4132 is a thin wall formed at a junction of the peripheral wall of the intake groove 413 and the peripheral wall of the bag chamber 412. Preferably, the base 411 has a protruding sealing rib 416 on the upper surface, and the cover 42 is pressed against the sealing rib 416 so that the cavity 412, the air inlet groove 413 and the air charging groove 414 form independent spaces. Further, the upper surface of the base plate 411 is recessed to form an inflation groove 414, the peripheral wall of the bag cavity 412 is provided with a second positioning portion 4121 and an inflation portion 4122, and the inflation portion 4122 is a thin wall formed at the connection position of the peripheral wall of the bag cavity 412 and the peripheral wall of the inflation groove 414. The cover body 42 comprises an upward-protruding inflation column 421 and a downward-protruding first positioning plug 422 and a second positioning plug 423, and the inflation column 421 has an inflation channel 424 communicated with the inflation groove 414. Specifically, the first positioning plug 422 is inserted into the air inlet groove 413 to be attached to the first positioning portion 4131 and the air inlet portion 4132, and the second positioning plug 423 is inserted into the bag cavity 412 to be attached to the second positioning portion 4121 and the inflating portion 4122, thereby connecting the cover 42 and the bag body 41. Preferably, a notch 4133 is formed in the peripheral wall of the bag chamber 412 adjacent to the air intake portion 4132 to facilitate separation of the air intake portion 4132 from the first positioning plug 422. Specifically, the air inlet 415 is opened at the bottom of the air inlet groove 413, and the fixing base 43 has an air inlet hole 431 opposite to the air inlet 415.

Therefore, under the driving of the motor 10, the connecting rod 30 stretches the capsule 41 downwards, the volume of the capsule 412 is increased, the air pressure in the capsule 412 is reduced, the outside air enters the air inlet groove 413 from the air inlet hole 431 through the air inlet 415, the air inlet part 4132 is separated from the first positioning plug 422, and the air enters the capsule 412 from the air inlet part 4132; when the volume of the bag cavity 412 is reduced, the air pressure in the bag cavity 412 is increased, the air inlet portion 4132 closes close to the first positioning plug 422, the inflating portion 4122 is separated from the second positioning plug 423, and the air in the bag cavity 412 enters the inflating groove 414 from the inflating portion 4122 and then is exhausted through the inflating passage 424 to inflate the inflated bag.

Referring to fig. 2-3, the fixing base 43 has an air inlet hole 431 and a receiving hole 432 for receiving the bag chamber 412. Preferably, the connecting rod 30 includes a mounting plate 31 and a connecting shaft 32 connected to the mounting plate 31, and the mounting plate 31 is provided with a mounting hole 33 having a mounting notch 34. The lower end of the bag cavity 412 is inserted into the receiving hole 432 and is mounted in the mounting hole 33 of the mounting plate 31 from the mounting notch 34, and the mounting notch 34 is provided to facilitate the mounting of the bag body 41. Preferably, there are a plurality of the capsule cavities 412, and accordingly, there are a plurality of the accommodation holes 432, the air inlet holes 431, the air inlets 415, the air inlet grooves 413, and the like, 3 in fig. 2-3, but not limited thereto.

Referring to fig. 2-5, the peripheral wall of the cover 42 is provided with a positioning member 425, the peripheral edges of the base 411 and the fixing base 43 of the bag body 41 are respectively provided with a first positioning notch 417 and a second positioning notch 433, the peripheral wall of the cylinder 20 is provided with a positioning slot 434, the positioning slot 434 is provided with a fastening portion 435, and the positioning member 425 is inserted into the positioning notches of the bag body 41 and the fixing base 43 and fastened with the fastening portion 435, so as to fix the cover 42, the bag body 41, the fixing base 43 and the cylinder 20. The air intake holes 431 are communicated with the outside through the gaps at the positioning grooves 434. Preferably, the cover 42 has a plurality of lightening holes 426.

Therefore, when the micro air pump 100 needs to supply air, the motor 10 drives the connecting rod 30, so that the plurality of pockets 412 are sequentially stretched or compressed. When the capsule 412 is stretched, the volume of the capsule 412 is increased, the air pressure is reduced, the air inlet portion 4132 is separated from the outer wall of the first positioning plug 422 under the blowing of the air flow, and the external air sequentially passes through the positioning slot 434, the air inlet hole 431, the air inlet 415 and the air inlet groove 413 and enters the capsule 412 from the gap between the air inlet portion 4132 and the first positioning plug 422. When the bag cavity 412 is compressed, the volume of the bag cavity 412 is reduced, the air pressure is increased, the air inlet part 4132 is attached to the first positioning plug 422, the inflation part 4122 is separated from the outer peripheral wall of the second positioning plug 423 under the blowing of the air flow, and the air in the bag cavity 412 enters the inflation groove 414 from the gap between the inflation part 4122 and the second positioning plug 423 and then is discharged through the inflation channel 424 to inflate the inflated air bag.

In summary, the air supply device 40 of the present invention includes a bag body 41 and a cover 42 pressed on the bag body 41, the bag body 41 includes a bag cavity 412 with an upward opening, an air inlet groove 413, an air charging groove 414 and an air inlet 415 communicated with the air inlet groove 413, the peripheral wall of the air inlet groove 413 has a first positioning portion 4131 and an air inlet portion 4132, and the air inlet portion 4132 is located between the air inlet groove 413 and the bag cavity 412. The cover 42 includes a first positioning plug 422 and an inflating column 421, the first positioning plug 422 is inserted into the air inlet groove 413 to be matched with the first positioning portion 4131 and the air inlet portion 4132 to connect the bag body 41 and the cover 42, and the inflating column 421 has an inflating channel 424 communicated with the inflating groove 414. When the volume of the capsule 412 is increased by stretching, the external air enters the air inlet groove 413 through the air inlet 415 and enters the capsule 412 through the air inlet 4132; when the volume of the bladder 412 is reduced by the compression, the inlet 4132 closes and the gas in the bladder 412 enters the inflation channel 414 and is exhausted through the inflation channel 424. Therefore, the bag body 41 is provided with a plurality of parts, an air inlet valve mechanism and an air outlet valve mechanism do not need to be additionally and independently arranged, the number of parts is small, the assembly is easy, and the cost is low.

The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the utility model, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the utility model.

Claims

1. An air supply device is characterized by comprising a bag body and a cover body which is pressed on the bag body, wherein the bag body comprises a bag cavity with an upward opening, an air inlet groove, an air charging groove and an air inlet communicated with the air inlet groove, the upper surface of the bag body is concave to form the air inlet groove, the peripheral wall of the air inlet groove is provided with a first positioning part and an air inlet part, and the air inlet part is positioned between the air inlet groove and the bag cavity; the cover body comprises a first positioning plug and an inflation column, the first positioning plug is inserted into the air inlet groove, matched with the first positioning part and the air inlet part and connected with the bag body and the cover body, and the inflation column is provided with an inflation channel communicated with the inflation groove; when the stretched volume of the capsule cavity is increased, outside air enters the air inlet groove through the air inlet and enters the capsule cavity through the air inlet part; when the volume of the bag cavity is reduced by compression, the air inlet part is closed, and the air in the bag cavity enters the inflation groove and is exhausted through the inflation channel.

2. A gas supply device according to claim 1, wherein the bag body includes a base plate on which the bag chamber, the gas inlet tank, and the gas filling tank are provided at intervals, and the gas inlet portion is a thin wall formed at a junction of a peripheral wall of the gas inlet tank and a peripheral wall of the bag chamber.

3. An air supply device as set forth in claim 2, wherein a notch is formed in the peripheral wall of the bag chamber adjacent to the air inlet portion.

4. A gas supply device as set forth in claim 2, wherein the base plate has a protruding sealing rib on an upper surface thereof, and the cover is press-fitted to the sealing rib.

5. An air supply device as set forth in claim 1, wherein the bag body is recessed at an upper surface thereof to form the air charging groove, the bag chamber peripheral wall is provided with a second positioning portion and an air charging portion, and the air charging portion is a thin wall formed at a junction of the bag chamber peripheral wall and the air charging groove peripheral wall; the cover body protrudes downwards to form a second positioning plug, and the second positioning plug is inserted into the bag cavity and is jointed with the second positioning part and the inflating part so as to connect the cover body and the bag body; when the bag cavity is compressed, the air inlet part is closed, and the air in the bag cavity is separated from the second positioning plug by the inflating part, enters the inflating groove from the inflating part and then is discharged through the inflating channel.

6. An air supply device as claimed in claim 1, wherein the air inlet is formed at the bottom of the air inlet groove, and the air supply device further comprises a fixing seat for fixing the capsule, and the fixing seat is provided with an air inlet hole opposite to the air inlet.

7. An air supply device as set forth in claim 6, wherein a positioning member is provided on the peripheral wall of the cover body for fixing the cover body, the bag body and the fixing base.

8. An air supply device as set forth in claim 1, wherein the cover body is formed with a plurality of lightening holes.

9. A micro air pump, comprising a motor, a cylinder connected with the motor, a connecting rod and the air supply device according to any one of claims 1 to 8, wherein a bag body of the air supply device is detachably connected with the connecting rod, and the motor is connected with and drives the connecting rod so as to drive the bag body to be stretched or compressed to realize air suction and air exhaust of the bag cavity.

10. The micro air pump according to claim 9, wherein the connecting rod is provided with a mounting hole having a mounting notch, and the lower end of the bag body is mounted in the mounting hole.