CN215860731U

CN215860731U - Air supply device and micro air pump with same

Info

Publication number: CN215860731U
Application number: CN202121931338.0U
Authority: CN
Inventors: 杨海斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-18
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 with a bag cavity, an air inlet valve plate, an air outlet and an air exhaust part and a cover body pressed on the bag body, wherein the air exhaust part is positioned between the bag cavity and the air outlet. The cover body is provided with an exhaust column and an air inlet groove which is communicated with the air inlet and the bag cavity, and the exhaust column is provided with an exhaust passage which is communicated with the air outlet. When the volume of the bag cavity is increased by stretching, the air inlet valve plate is opened, and outside air enters the bag cavity after entering the air inlet groove through the air inlet. When the volume of the bag cavity is reduced by compression, the air inlet valve plate is closed, and the air in the bag cavity is exhausted through the air outlet and the air exhaust passage through the air exhaust part. 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 and an air inlet valve plate arranged at the air inlet, the upper surface of the bag body is concave downwards to form an air outlet, an exhaust part is arranged between the bag cavity and the air outlet, the cover body comprises an exhaust column and an air inlet groove communicated with the air inlet and the bag cavity, the exhaust column is provided with an exhaust passage communicated with the air outlet, when the stretched volume of the bag cavity is increased, the air inlet valve plate is opened, and outside air enters the bag cavity after entering the air inlet groove through the air inlet; when the volume of the bag cavity is reduced by compression, the air inlet valve plate is closed, and the air in the bag cavity is exhausted through the air outlet and the air exhaust passage through the air exhaust part.

Compared with the prior art, the air supply device comprises a bag body with a bag cavity, an air inlet valve plate, an air outlet and an air exhaust part, and a cover body pressed on the bag body, wherein the air exhaust part is positioned between the bag cavity and the air outlet, the cover body comprises an air exhaust column and an air inlet groove communicated with the air inlet and the bag cavity, and the air exhaust column is provided with an air exhaust channel communicated with the air outlet. When the stretched volume of the bag cavity is increased, the air inlet valve plate is opened, and outside air enters the air inlet groove through the air inlet and then enters the bag cavity; when the volume of the bag cavity is reduced by compression, the air inlet valve plate is closed, and the air in the bag cavity is exhausted through the air outlet and the air exhaust passage through the air exhaust part. 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 utricule includes the base plate, and air inlet, gas outlet, bag chamber locate on the base plate at interval, and bag chamber perisporium forms location portion and exhaust portion, and when the bag chamber was compressed, the gas in the bag chamber was discharged through the exhaust passage after the exhaust portion got into the gas outlet.

Specifically, the exhaust part is a thin wall formed at the junction of the peripheral wall of the bag cavity and the peripheral wall of the air outlet.

Specifically, the lid is protruding to be stretched downwards and is formed the reference column, thereby the reference column is inserted and is located in the bag chamber and is connected lid and utricule with location portion and exhaust portion laminating.

Specifically, the periphery wall of the positioning column is provided with a communicating groove communicated with the air inlet groove.

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

Specifically, the air supply device further comprises a fixed seat for fixing the bag body, and an air inlet is formed in the fixed seat.

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.

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 capsule 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 capsule body to move up and down to realize air suction and air exhaust of the capsule 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 cylinder body 20; a screw 21; a connecting rod 30; a mounting hole 31; a mounting notch 32; an air supply device 40; a balloon 41; a capsule cavity 410; an air inlet 411; an intake valve plate 412; an air outlet 413; an exhaust section 414; a substrate 415; a positioning portion 416; a sealing rib 417; a first positioning notch 418; a cover 42; an exhaust column 420; an air intake groove 421; an exhaust passage 422; positioning posts 423; the communication groove 424; a positioning member 425; a fixed base 43; an air intake hole 430; a housing hole 431; a second positioning notch 432; a positioning slot 433; engaging part 434

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 a driving shaft of the motor 10 through an eccentric wheel, 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 5, the air supply device 40 includes a bag body 41 and a cover 42 press-fitted to the bag body 41. The capsule body 41 includes a capsule cavity 410 with an upward opening, an air inlet 411 and an air inlet valve sheet 412 disposed at the air inlet 411. The upper surface of the body 41 is recessed to form an air outlet 413, and an air outlet 414 is arranged between the cavity 410 and the air outlet 413. The cover 42 includes an exhaust column 420 and an intake groove 421 communicating the intake opening 411 and the bag chamber 410, the exhaust column 420 having an exhaust passage 422 communicating the exhaust opening 413. Under the driving of the motor 10, the connecting rod 30 stretches the capsule 41 downwards, the volume of the capsule cavity 410 is increased, the air inlet valve plate 412 is opened, and outside air enters the air inlet groove 421 through the air inlet 411 and then enters the capsule cavity 410; when the connecting rod 30 presses the capsule 41 upwards, the volume of the capsule 410 is reduced, the air inlet valve plate 412 is closed, and the air in the capsule 410 is exhausted through the air outlet 413 and the air exhaust passage 422 through the exhaust part 414.

Referring to fig. 6-7, the bag body 41 includes a base plate 415, the air inlet 411, the air outlet 413, and the bag cavity 410 are disposed on the base plate 415 at intervals, and the peripheral wall of the bag cavity 410 forms a positioning portion 416 and an air exhaust portion 414. When the bladder 410 is compressed, the gas in the bladder 410 enters the gas outlet 413 from the gas outlet 414 and is exhausted through the gas exhaust passage 422. Preferably, the air exhaust part 414 is a thin wall formed at the junction of the peripheral wall of the capsule 410 and the peripheral wall of the air outlet 413. Further, the cover 42 protrudes downward to form a positioning column 423, the positioning column 423 is inserted into the bag cavity 410, and an outer peripheral wall of the positioning column 423 is attached to the positioning portion 416 and the air exhaust portion 414 to connect and fix the cover 42 and the bag body 41. When the bladder chamber 410 is compressed, the air discharge portion 414 is separated from the outer peripheral wall of the positioning post 423, and the air in the bladder chamber 410 enters the air outlet 413. Specifically, a communication groove 424 communicating with the intake groove 421 is formed in the outer peripheral wall of the positioning column 423. Preferably, as shown in fig. 3, the intake groove 421 and the communication groove 424 are united to communicate the intake opening 411 with the sac chamber 410.

Preferably, the upper surface of the base plate 415 has a protruded sealing rib 417, and the cover 42 is pressed against the sealing rib 417, so that the capsule 410, the air inlet 411, and the air outlet 413 form an independent sealed space. Specifically, the air supply device 40 further includes a fixing seat 43 for fixing the capsule 41, the fixing seat 43 has an air inlet hole 430 and a receiving hole 431, and the air inlet hole 430 is opposite to the air inlet valve plate 412. Preferably, the connecting rod 30 defines a mounting hole 31 having a mounting notch 32. The lower end of the capsule 410 is inserted into the receiving hole 431 and is mounted in the mounting hole 31 of the connecting rod 30. Preferably, there are a plurality of capsules 410, and correspondingly, there are a plurality of receiving holes 431, air intake holes 430, air inlets 411, etc., 3 in fig. 2-3, but not limited thereto.

Referring to fig. 2-5, the positioning member 425 is disposed on the peripheral wall of the cover 42, the first positioning notch 418 and the second positioning notch 432 are respectively disposed on the peripheral edges of the base plate 415 and the fixing base 43 of the bag body 41, the positioning groove 433 is disposed on the peripheral wall of the cylinder 20, the engaging portion 434 is disposed in the positioning groove 433, and the positioning member 425 is inserted into the positioning notches of the bag body 41 and the fixing base 43 and engages with the engaging portion 434 to fix the cover 42, the bag body 41, the fixing base 43 and the cylinder 20. The air inlet holes 430 are communicated with the outside through the positioning grooves 433.

Therefore, when the micro air pump 100 needs to supply air, the motor 10 drives the link 30 such that the plurality of pockets 410 are sequentially stretched or compressed. When the bladder cavity 410 is stretched, the volume of the bladder cavity 410 increases, the air inlet valve plate 412 is opened, and the outside air passes through the positioning groove 433, the air inlet holes 430, the air inlet 411, the communication groove 424 and the air inlet groove 421, and then enters the bladder cavity 410. When the air bag cavity 410 is compressed, the volume of the air bag cavity 410 is reduced, the air inlet valve plate 412 is closed, the air exhaust part 414 is separated from the outer peripheral wall of the positioning column 423 under the blowing of the air flow, and the air enters the air outlet 413 from the air exhaust part 414 and then is exhausted from the air exhaust passage 422.

In summary, the air supply device 40 of the present invention includes a bag body 41 having a bag chamber 410, an air inlet 411, an air inlet valve plate 412, an air outlet 413, and an air discharge portion 414, and a cover 42 press-fitted to the bag body 41, wherein the air discharge portion 414 is located between the bag chamber 410 and the air outlet 413. The cover body 42 is provided with an exhaust column 420 and an air inlet groove 421 for communicating the air inlet 411 with the bag cavity 410, and the exhaust column 420 is provided with an exhaust passage 422 for communicating the air outlet 413. When the stretched volume of the capsule 410 is increased, the air inlet valve plate 412 is opened, and outside air enters the air inlet groove 421 through the air inlet 411 and then enters the capsule 410; when the volume of the bladder 410 is reduced by compression, the intake valve 412 is closed and the gas in the bladder 410 is exhausted through the exhaust port 414, the outlet port 413 and the exhaust passage 422. 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, wherein the cover body is pressed on the bag body, the bag body comprises a bag cavity with an upward opening, an air inlet and an air inlet valve plate arranged at the air inlet, the upper surface of the bag body is concave to form an air outlet, an air exhaust part is arranged between the bag cavity and the air outlet, the cover body comprises an air exhaust column and an air inlet groove communicated with the air inlet and the bag cavity, the air exhaust column is provided with an air exhaust passage communicated with the air outlet, when the stretched volume of the bag cavity is increased, the air inlet valve plate is opened, and outside air enters the bag cavity after entering the air inlet groove through the air inlet; when the compressed volume of the bag cavity is reduced, the air inlet valve plate is closed, and the air in the bag cavity is exhausted through the air outlet and the air exhaust passage through the air exhaust part.

2. The air supply device as claimed in claim 1, wherein the bag body includes a base plate, the air inlet, the air outlet, and a bag cavity are spaced apart from each other on the base plate, the bag cavity peripheral wall forms a positioning portion and the air discharge portion, and when the bag cavity is compressed, air in the bag cavity enters the air outlet from the air discharge portion and is discharged through the air discharge passage.

3. A gas supply device according to claim 2, wherein the gas exhaust portion is a thin wall formed at a junction of the peripheral wall of the bag chamber and the gas outlet peripheral wall.

4. An air supply device as claimed in claim 2, wherein the cover protrudes downward to form a positioning post, and the positioning post is inserted into the bag cavity and attached to the positioning portion and the air exhaust portion to connect the cover and the bag body.

5. An air supply device as claimed in claim 4, wherein a communication groove communicating with the air inlet groove is formed in an outer peripheral wall of the positioning post.

6. 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.

7. A gas delivery device as set forth in claim 2, further comprising a fixing seat for fixing the capsule, the fixing seat having a gas inlet hole.

8. An air supply device as set forth in claim 7, 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.

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.