CN219827059U - Air compressor for oxygen production - Google Patents

Abstract

The utility model discloses an air compressor for oxygen generation, which comprises a double-headed motor, two crank connecting rod mechanisms and two air cylinders, wherein each air cylinder comprises a cylinder barrel and a piston, the double-headed motor drives the two crank connecting rod mechanisms to move, the crank connecting rod mechanisms drive the pistons to reciprocate in the cylinder barrel, two air inlet boxes and air inlet pipes which are respectively communicated with the two air inlet boxes are arranged on two sides of the double-headed motor, the two air cylinders are respectively arranged in the two air inlet boxes, the crank connecting rod mechanisms are positioned in the air inlet boxes, the pistons are respectively provided with an air inlet valve port and an air inlet reed valve plate which is arranged at the air inlet valve port, the two air cylinders are respectively provided with a cylinder cover and an air outlet pipe which is communicated with the cylinder cover, an exhaust valve plate is arranged between the cylinder cover and the cylinder barrel, and an exhaust valve port and an exhaust reed valve plate which is arranged at the exhaust valve port are arranged on the exhaust valve plate. The utility model can greatly improve the working efficiency.

Description

Air compressor for oxygen production

Technical Field

The utility model relates to the technical field of air compressors, in particular to an air compressor for oxygen production.

Background

The oil-free air compressor is mainly applied to medical oxygenerators. The air compressor comprises a motor, a crank, a connecting rod and an air cylinder, wherein the air cylinder comprises a cylinder body, a piston and cylinder covers arranged at two ends of the cylinder body, a valve plate is arranged between the cylinder covers, the air compressor is characterized in that the motor is connected with the crank, an air inlet valve and an air outlet valve are arranged on the valve plate, the cylinder covers at two ends of the air cylinder are respectively provided with an air inlet and an air outlet, the motor drives the crank to rotate, the crank drives the connecting rod and the piston to reciprocate in the cylinder barrel, the volume of the air cylinder is periodically changed, and air entering through the air inlet valve is compressed and then output through the air outlet valve.

However, the existing air compressor is usually driven by a motor to move a cylinder, however, the oxygen production amount of the cylinder is not high, the working efficiency is low, and the oxygen production requirement cannot be met.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the air compressor for oxygen production, which can enable one double-headed motor to drive two cylinders to move simultaneously, greatly improves the working efficiency, improves the oxygen production efficiency of the oxygen generator, and meets the oxygen production requirement.

An air compressor for oxygen production according to an embodiment of the present utility model includes: the driving device comprises a double-headed motor, two crank connecting rod mechanisms and two air cylinders, wherein the two crank connecting rod mechanisms are respectively connected with two output shafts of the double-headed motor, each air cylinder comprises a cylinder barrel and a piston, and the crank connecting rod mechanisms drive the pistons to reciprocate in the cylinder barrels; the air inlet device comprises two air inlet boxes and air inlet pipes respectively communicated with the two air inlet boxes, the air inlet boxes are arranged between the double-headed motor and the cylinder barrel, the crank connecting rod mechanism is positioned in the air inlet boxes, the piston is provided with an air inlet valve port and an air inlet reed valve plate arranged at the air inlet valve port, and the air inlet reed valve plate is used for controlling the opening or closing of the air inlet valve port; the air outlet device comprises two cylinder covers and an air outlet pipe which is respectively communicated with the two cylinder covers, the two cylinder covers are respectively arranged at one ends of the two cylinder barrels, an air exhaust valve plate is arranged between the cylinder covers and the cylinder barrels, an air exhaust valve port and an air exhaust reed valve plate arranged at the air exhaust valve port are arranged on the air exhaust valve plate, and the air exhaust reed valve plate is used for controlling the opening or closing of the air exhaust valve port.

The air compressor for oxygen production has at least the following beneficial effects:

1. according to the utility model, the driving device is arranged, the double-headed motor drives the two crank connecting rod mechanisms to move, and the two crank connecting rod mechanisms respectively drive the two pistons to reciprocate in the cylinder barrel, so that one double-headed motor can drive the two cylinders to move at the same time, and the working efficiency is greatly improved.

2. According to the utility model, the air inlet device and the air outlet device are arranged, when the crank connecting rod mechanism drives the piston to start moving from the exhaust valve plate, the working volume in the cylinder barrel is gradually increased, at the moment, air enters the air inlet box body along the air inlet pipe, the air in the air inlet box body pushes the air inlet reed valve plate away from the air inlet valve port to enter the cylinder barrel, and then the air inlet reed valve plate is closed until the working volume in the cylinder barrel is maximum; when the crank-link mechanism drives the piston to move reversely, the working volume in the cylinder barrel is reduced, the gas pressure in the cylinder barrel is increased, when the gas pressure in the cylinder barrel reaches and is slightly higher than the exhaust pressure, the exhaust reed valve plate is opened, gas is discharged from the exhaust valve port out of the cylinder barrel, and discharged gas enters a cavity between the cylinder cover and the exhaust valve plate and is discharged from the air outlet pipe until the crank-link mechanism drives the piston to move to the limit position, at the moment, the exhaust reed valve plate is closed, so that the oxygen production efficiency of the oxygen generator can be improved, and the oxygen production requirement is met.

According to some embodiments of the utility model, the crank-link mechanism comprises a crank, a link rod arranged on the crank, the crank is connected with an output shaft of the double-headed motor, and the link rod is connected with the piston.

The beneficial effects are that: through setting up crank and connecting rod, the double-end motor drive crank rotation, and the crank drives the connecting rod swing, and the connecting rod drives piston reciprocating motion in the cylinder to can change the rotary motion of double-end motor into the reciprocating motion of piston, can realize continuous motion.

According to some embodiments of the utility model, the piston is provided with a wear ring in sliding abutment with the inner wall of the cylinder.

The beneficial effects are that: through setting up the wear ring, when piston reciprocating motion in the cylinder, wear ring and the inner wall slip butt of cylinder on the one hand can improve the leakproofness between piston and the cylinder, on the other hand can prevent the inner wall direct contact of piston and cylinder, guarantees the piston smooth motion, reduces frictional resistance.

According to some embodiments of the present utility model, a plurality of threaded holes are formed in a side, close to the cylinder, of the air intake box, a plurality of first mounting holes corresponding to the threaded holes are formed in the cylinder cover, a plurality of second mounting holes corresponding to the first mounting holes are formed in the exhaust valve plate, and bolts sequentially penetrate through the first mounting holes and the second mounting holes and then are connected with the threaded holes.

The beneficial effects are that: through setting up a plurality of screw holes, a plurality of first mounting holes and a plurality of second mounting holes, during the assembly, place cylinder, exhaust valve plate and cylinder cap in proper order in inlet box one side earlier, then pass behind first mounting hole and the second mounting hole in proper order with the bolt and be connected with the screw hole until every bolt is screwed up to, can realize the locking to cylinder, exhaust valve plate and cylinder cap, reduced the quantity of connecting the accessory, simplified complicated assembly.

According to some embodiments of the utility model, a plurality of first mounting posts corresponding to the plurality of threaded holes are arranged on the outer side of the cylinder barrel, and the first mounting posts are provided with first through holes, and the first through holes are used for accommodating bolts.

The beneficial effects are that: through setting up a plurality of first erection columns and first through-hole, first through-hole holding bolt passes, and when installing cylinder and cylinder cap, the bolt passes first mounting hole, second mounting hole, first through-hole in proper order, closes with the screw hole soon again, on the one hand, a plurality of first erection columns can increase the rigidity of cylinder, guarantees that the cylinder is difficult for deformation in installation and use, on the other hand, the bolt passes first through-hole, can prevent that the cylinder from taking place the skew in the use, improves the stability of equipment.

According to some embodiments of the utility model, the cylinder outer surface is provided with a number of first cooling fins.

The beneficial effects are that: through setting up first fin, can improve the heat dispersion of cylinder to, can increase the life of cylinder and wear ring.

According to some embodiments of the utility model, a plurality of third mounting holes are formed in opposite sides of the two air inlet boxes, a plurality of second mounting columns corresponding to the third mounting holes are arranged on the outer sides of the double-headed motors, second through holes are formed in the second mounting columns, and the second through holes are used for accommodating bolts.

The beneficial effects are that: through setting up a plurality of third mounting holes, second erection column and second through-hole, the air inlet box of stud both sides is when the installation, and the bolt passes the third mounting hole in two air inlet boxes and the second through-hole in the stud, and the bolt closes with the nut soon, makes two air inlet boxes lock in the stud both sides, and the second erection column can support the mounted position of two air inlet boxes, prevents that two air inlet boxes from taking place to warp when locking, and moreover, the second through-hole can fix a position the mounted position of two air inlet boxes, improves the stability of equipment.

According to some embodiments of the utility model, the double-ended motor is externally provided with a plurality of second cooling fins.

The beneficial effects are that: through setting up the second fin, can improve double-end motor's heat dispersion to, can increase double-end motor's life.

According to some embodiments of the utility model, the air intake device further comprises an air intake manifold, and the two air intake pipes are respectively communicated with the air intake manifold.

The beneficial effects are that: through setting up air inlet manifold, air shunts to two intake pipes through air inlet manifold, makes whole air compressor have only an air inlet, has practiced thrift the quantity of intake pipe.

According to some embodiments of the utility model, the air outlet device further comprises an air outlet main pipe, and the two air outlet pipes are respectively communicated with the air outlet main pipe.

The beneficial effects are that: through setting up the house steward that gives vent to anger, the gas of two outlet ducts gathers at the house steward that gives vent to anger, makes whole air compressor only one gas outlet export to the terminal, has increased the oxygen suppliment volume at terminal.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of an air compressor for oxygen production according to an embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the intake housing, cylinder and cylinder head of FIG. 1;

fig. 4 is a schematic view of the structure of the double-headed motor and the intake housing in fig. 1.

Reference numerals: 100-double-headed motor, 110-crank connecting rod mechanism, 120-cylinder, 130-cylinder barrel, 140-piston, 150-inlet box, 160-inlet pipe, 170-inlet valve port, 180-inlet reed valve block, 190-cylinder cover, 200-outlet pipe, 210-outlet valve plate, 220-outlet valve port, 230-outlet reed valve block, 240-crank, 250-connecting rod, 260-wear ring, 270-threaded hole, 280-first mounting hole, 290-second mounting hole, 300-first mounting column, 310-first through hole, 320-first cooling fin, 330-third mounting hole, 340-second mounting column, 350-second through hole, 360-second cooling fin, 370-inlet manifold and 380-outlet manifold.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

An air compressor for oxygen production according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an air compressor for oxygen generation according to an embodiment of the present utility model includes a driving device, an air inlet device, and an air outlet device.

The driving device comprises a double-headed motor 100, two crank link mechanisms 110 and two air cylinders 120, wherein the two crank link mechanisms 110 are respectively connected with two output shafts of the double-headed motor 100, the air cylinders 120 comprise a cylinder barrel 130 and a piston 140, and the crank link mechanisms 110 drive the piston 140 to reciprocate in the cylinder barrel 130.

The air inlet device comprises two air inlet boxes 150 and an air inlet pipe 160 which is respectively communicated with the two air inlet boxes 150, the air inlet boxes 150 are arranged between the double-headed motor 100 and the cylinder 130, the crank connecting rod mechanism 110 is positioned in the air inlet boxes 150, the piston 140 is provided with an air inlet valve port 170 and an air inlet reed valve plate 180 arranged at the air inlet valve port 170, and the air inlet reed valve plate 180 is used for controlling the opening or closing of the air inlet valve port 170.

The air outlet device comprises two cylinder covers 190 and an air outlet pipe 200 which is respectively communicated with the two cylinder covers 190, the two cylinder covers 190 are respectively arranged at one ends of the two cylinder barrels 130, an air exhaust valve plate 210 is arranged between the cylinder covers 190 and the cylinder barrels 130, an air exhaust valve port 220 and an air exhaust reed valve plate 230 arranged at the air exhaust valve port 220 are arranged on the air exhaust valve plate 210, and the air exhaust reed valve plate 230 is used for controlling the opening or closing of the air exhaust valve port 220.

When in operation, the double-headed motor 100 drives the crank-link mechanism 110 at both sides to move, the crank-link mechanism 110 drives the piston 140 to reciprocate in the cylinder 130, and the working volume formed by the inner wall of the cylinder 130, the piston 140 and the exhaust valve plate 210 is periodically changed. When the crank-link mechanism 110 drives the piston 140 to move from the exhaust valve plate 210, the working volume in the cylinder 130 gradually increases, and at this time, gas enters the gas inlet box 150 along the gas inlet pipe 160, and the gas in the gas inlet box 150 pushes the gas inlet reed valve plate 180 away from the gas inlet valve port 170 and enters the cylinder 130 until the working volume in the cylinder 130 reaches the maximum, and then the gas inlet reed valve plate 180 is closed; when the crank-link mechanism 110 drives the piston 140 to move reversely, the working volume in the cylinder 130 is reduced, the gas pressure in the cylinder 130 is increased, when the gas pressure in the cylinder 130 reaches and is slightly higher than the exhaust pressure, the exhaust reed valve plate 230 is opened, the gas is discharged from the exhaust valve port 220 out of the cylinder 130, the discharged gas enters the cavity between the cylinder cover 190 and the exhaust valve plate 210 and is discharged from the gas outlet pipe 200 until the crank-link mechanism 110 drives the piston 140 to move to the limit position, and at the moment, the exhaust reed valve plate 230 is closed.

Therefore, the utility model can enable one double-headed motor 100 to drive two cylinders 120 to move at the same time, greatly improve the working efficiency, improve the oxygen production efficiency of the oxygen generator and meet the oxygen production requirement.

In some preferred embodiments, crank-link mechanism 110 includes crank 240, and link 250 disposed on crank 240, crank 240 being coupled to the output shaft of double-ended motor 100, link 250 being coupled to piston 140.

It will be appreciated that by providing the crank 240 and the connecting rod 250, the double-headed motor 100 drives the crank 240 to rotate, the crank 240 drives the connecting rod 250 to swing, and the connecting rod 250 drives the piston 140 to reciprocate in the cylinder 130, so that the rotary motion of the double-headed motor 100 can be converted into the reciprocating motion of the piston 140, and continuous motion can be achieved.

In some preferred embodiments, the piston 140 is provided with a wear ring 260, the wear ring 260 being in sliding abutment with the inner wall of the cylinder 130.

It can be appreciated that by arranging the wear-resistant ring 260, when the piston 140 reciprocates in the cylinder 130, the wear-resistant ring 260 is slidably abutted against the inner wall of the cylinder 130, so that on one hand, the tightness between the piston 140 and the cylinder 130 can be improved, and on the other hand, the piston 140 can be prevented from directly contacting the inner wall of the cylinder 130, the smooth movement of the piston 140 is ensured, and the friction resistance is reduced.

Referring to fig. 3, in some preferred embodiments, the intake housing 150 is provided with a plurality of screw holes 270 at a side near the cylinder tube 130, the cylinder head 190 is provided with a plurality of first mounting holes 280 corresponding to the plurality of screw holes 270, the exhaust valve plate 210 is provided with a plurality of second mounting holes 290 corresponding to the plurality of first mounting holes 280, and bolts (not shown in the drawings) are connected to the screw holes 270 after passing through the first and second mounting holes 280 and 290 in sequence.

It can be appreciated that by arranging the plurality of threaded holes 270, the plurality of first mounting holes 280 and the plurality of second mounting holes 290, during assembly, the cylinder 130, the exhaust valve plate 210 and the cylinder cover 190 are sequentially placed on one side of the air inlet box 150, and then bolts sequentially pass through the first mounting holes 280 and the second mounting holes 290 and are connected with the threaded holes 270 until each bolt is screwed down, so that locking of the cylinder 130, the exhaust valve plate 210 and the cylinder cover 190 can be realized, the consumption of connecting fittings is reduced, and complex assembly is simplified.

In some preferred embodiments, a plurality of first mounting posts 300 corresponding to the plurality of screw holes 270 are provided at the outer side of the cylinder tube 130, and the first mounting posts 300 are provided with first through holes 310, and the first through holes 310 receive bolts therethrough.

It can be appreciated that through setting up a plurality of first erection columns 300 and first through-hole 310, first through-hole 310 holding bolt passes, and when installing cylinder 130 and cylinder cap 190, the bolt passes first mounting hole 280, second mounting hole 290, first through-hole 310 in proper order, and again closes with screw hole 270 in a screwing way, on the one hand, a plurality of first erection columns 300 can increase the rigidity of cylinder 130, guarantees cylinder 130 be difficult for the deformation in installation and use, on the other hand, the bolt passes first through-hole 310, can prevent that cylinder 130 from taking place the skew in the use, improves the stability of equipment.

In some preferred embodiments, the outer surface of the cylinder 130 is provided with a plurality of first fins 320.

It will be appreciated that by providing the first fin 320, the heat dissipation performance of the cylinder 130 can be improved, and thus, the service lives of the cylinder 130 and the wear ring 260 can be increased.

Referring to fig. 4, in some preferred embodiments, the opposite sides of the two intake boxes 150 are each provided with a plurality of third mounting holes 330, the outside of the double-headed motor 100 is provided with a plurality of second mounting posts 340 corresponding to the third mounting holes 330, the second mounting posts 340 are provided with second through holes 350, and the second through holes 350 receive bolts therethrough.

It can be appreciated that by providing the plurality of third mounting holes 330, the second mounting posts 340 and the second through holes 350, when the air inlet boxes 150 on both sides of the double-headed motor 100 are mounted, the bolts pass through the third mounting holes 330 in the two air inlet boxes 150 and the second through holes 350 in the double-headed motor 100, the bolts are screwed with the nuts, so that the two air inlet boxes 150 are locked on both sides of the double-headed motor 100, the second mounting posts 340 can support the mounting positions of the two air inlet boxes 150, the two air inlet boxes 150 are prevented from being deformed during locking, and the second through holes 350 can position the mounting positions of the two air inlet boxes 150, thereby improving the stability of the device.

In some preferred embodiments, the double-ended motor 100 is externally provided with a number of second heat sinks 360.

It can be appreciated that by providing the second heat sink 360, the heat radiation performance of the double-ended motor 100 can be improved, and thus, the service life of the double-ended motor 100 can be increased.

In some preferred embodiments, the air intake apparatus further includes an air intake manifold 370, and the two air intake pipes 160 are respectively in communication with the air intake manifold 370.

It can be appreciated that by providing the intake manifold 370, air is split to the two intake pipes 160 through the intake manifold 370, so that the whole air compressor has only one intake port, thereby saving the amount of intake pipes 160.

In some preferred embodiments, the outlet device further comprises an outlet manifold 380, and two outlet pipes 200 are respectively in communication with the outlet manifold 380.

It can be appreciated that by arranging the air outlet header 380, the air of the two air outlet pipes 200 is converged on the air outlet header 380, so that only one air outlet of the whole air compressor is output to the terminal, and the oxygen supply of the terminal is increased.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. An air compressor for producing oxygen, comprising:

the driving device comprises a double-headed motor (100), two crank connecting rod mechanisms (110) and two air cylinders (120), wherein the two crank connecting rod mechanisms (110) are respectively connected with two output shafts of the double-headed motor (100), the air cylinders (120) comprise a cylinder barrel (130) and a piston (140), and the crank connecting rod mechanisms (110) drive the piston (140) to reciprocate in the cylinder barrel (130);

the air inlet device comprises two air inlet boxes (150) and air inlet pipes (160) respectively communicated with the two air inlet boxes (150), the air inlet boxes (150) are arranged between the double-headed motor (100) and the cylinder barrel (130), the crank connecting rod mechanism (110) is positioned in the air inlet boxes (150), the piston (140) is provided with an air inlet valve port (170) and an air inlet reed valve plate (180) arranged at the air inlet valve port (170), and the air inlet reed valve plate (180) is used for controlling the opening or closing of the air inlet valve port (170);

the air outlet device comprises two cylinder covers (190), and air outlet pipes (200) respectively communicated with the two cylinder covers (190), wherein the two cylinder covers (190) are respectively arranged at one ends of the two cylinder barrels (130), an exhaust valve plate (210) is arranged between the cylinder covers (190) and the cylinder barrels (130), an exhaust valve port (220) is arranged on the exhaust valve plate (210), an exhaust reed valve plate (230) is arranged at the exhaust valve port (220), and the exhaust reed valve plate (230) is used for controlling the opening or closing of the exhaust valve port (220).

2. An air compressor for oxygen production according to claim 1, wherein the crank-link mechanism (110) includes a crank (240), a link (250) provided at the crank (240), the crank (240) being connected to an output shaft of the double-headed motor (100), the link (250) being connected to the piston (140).

3. An air compressor for oxygen production according to claim 1, characterized in that the piston (140) is provided with a wear ring (260), the wear ring (260) being in sliding abutment with the inner wall of the cylinder (130).

4. An air compressor for oxygen generation according to claim 1, wherein a plurality of threaded holes (270) are formed in the intake box (150) near one side of the cylinder tube (130), a plurality of first mounting holes (280) corresponding to the plurality of threaded holes (270) are formed in the cylinder head (190), a plurality of second mounting holes (290) corresponding to the plurality of first mounting holes (280) are formed in the exhaust valve plate (210), and bolts sequentially penetrate through the first mounting holes (280) and the second mounting holes (290) and then are connected with the threaded holes (270).

5. An air compressor for oxygen production according to claim 4, characterized in that a plurality of first mounting posts (300) corresponding to a plurality of the screw holes (270) are provided on the outer side of the cylinder tube (130), the first mounting posts (300) are provided with first through holes (310), and the first through holes (310) accommodate bolts.

6. An air compressor for oxygen production according to claim 1, characterized in that the outer surface of the cylinder (130) is provided with a number of first cooling fins (320).

7. An air compressor for oxygen production according to claim 1, wherein a plurality of third mounting holes (330) are provided on opposite sides of the two intake boxes (150), a plurality of second mounting posts (340) corresponding to the third mounting holes (330) are provided on the outer side of the double-headed motor (100), the second mounting posts (340) are provided with second through holes (350), and the second through holes (350) accommodate bolts.

8. An air compressor for oxygen production according to claim 1, characterized in that the double-headed motor (100) is externally provided with a plurality of second cooling fins (360).

9. An air compressor for oxygen production according to claim 1, wherein the air intake device further comprises an air intake manifold (370), and wherein the two air intake pipes (160) are respectively communicated with the air intake manifold (370).

10. An air compressor for oxygen production according to claim 1, wherein the air outlet means further comprises an air outlet manifold (380), and wherein two air outlet pipes (200) are respectively connected to the air outlet manifold (380).