Automatic grinding device for piston core and sleeve of molecular sieve oxygen system

Abstract

The invention discloses an automatic piston core and sleeve grinding device for a molecular sieve oxygen system, and belongs to the technical field of molecular sieve oxygen production. The grinding assembly comprises a grinding support, a public driving shaft, a transmission gear, a sleeve driving cylinder, a sleeve clamping piece, a piston core driving cylinder, a piston core driving pin, a piston core driving shaft and a piston core positioning shaft, the speed reducer is connected with the public driving shaft, and the public driving shaft is connected with the sleeve driving cylinder and the piston core driving cylinder; a guide groove is formed in the circumferential outer wall of the piston core driving cylinder, the piston core driving pin is arranged in the guide groove, the sleeve driving cylinder is connected with the sleeve clamping piece, and the piston core driving pin is connected with the two piston core positioning shafts through the two piston core driving shafts. According to the automatic grinding device, the automatic grinding function between the piston core and the sleeve is achieved, the grinding quality, the forming precision and the product percent of pass are remarkably improved, and the grinding efficiency and the production efficiency are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of molecular sieve oxygen production, and specifically relates to a component grinding device for a molecular sieve oxygen system, and in particular to an automatic grinding device for a piston core and a sleeve for a molecular sieve oxygen system. Background Art

[0002] The molecular sieve oxygen system mainly includes gas source components, oxygen concentrators and oxygen supply equipment. The gas source components mainly include air compressors. The oxygen concentrators mainly include multiple molecular sieve cylinders and integrated oxygen sockets and other related devices. The oxygen supply equipment mainly includes an oxygen regulator for controlling oxygen concentration and / or flow. Among them, the oxygen regulator, as a device for adjusting oxygen concentration and / or flow, plays an important role in the quality of oxygen supply and the oxygen inhalation experience of oxygen inhalers.

[0003] In the oxygen regulator of the molecular sieve oxygen system, the piston core and sleeve are key components for oxygen flow control, which are related to the ventilation volume of the oxygen supply component. Too much or too little ventilation volume cannot meet the application requirements and will affect the user's oxygen inhalation volume and oxygen inhalation experience. Figure 1 As shown, when in use, the piston core 2 is placed in the sleeve 1, and oxygen passes through the gap between the two. The gap is used to control the amount of oxygen passing through with high precision to meet the user's oxygen inhalation needs.

[0004] After the piston core 2 and the sleeve 1 are processed independently, the piston core 2 needs to be placed in the sleeve 1 for repeated grinding so that the gap between the two reaches a higher precision requirement to meet the oxygen absorption demand; the traditional grinding method between the piston core 2 and the sleeve 1 is manual grinding, such as Figure 1 As shown, one end of the piston core 2 is threadedly connected to the handle 3, and then the staff holds the sleeve 1 in one hand and the handle 3 in the other hand, and places the piston core 2 in the sleeve 1 and repeatedly moves it axially to achieve the purpose of grinding.

[0005] The above manual grinding method has the following defects: First, it is difficult to ensure that the movement of the handle 3 is a linear motion by manual operation, which may easily cause the two ends of the central axis of the piston core 2 and the sleeve 1 to be skewed, and it is also difficult to ensure that the piston core 2 grinds the circumferential inner wall of the sleeve 1 evenly. The grinding force is easily concentrated on one side of the inner wall of the sleeve 1, causing the hole cross-section of the sleeve 1 to be elliptical. There is a problem that the ventilation volume varies greatly in a large range after the piston core 2 rotates one circle, and its maximum ventilation volume exceeds the standard value. Therefore, the quality of manual grinding is difficult to control, the accuracy is difficult to be effectively guaranteed, and the qualified rate is low; second, manual grinding requires intermittent rest due to muscle fatigue. The average frequency of manual grinding of a single set of products is 56 times / min, which is inefficient and reduces production efficiency. Summary of the invention

[0006] The purpose of the present invention is to provide an automatic grinding device for piston core and sleeve of molecular sieve oxygen system with good grinding quality and high efficiency in order to solve the above problems.

[0007] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0008] A piston core and sleeve automatic grinding device for a molecular sieve oxygen system, comprising a driving motor and a reducer, and also comprising a grinding assembly, wherein the rotating shaft of the driving motor is connected to the input end of the reducer, and the grinding assembly comprises a grinding bracket, a common driving shaft, a transmission gear, a sleeve driving cylinder, a sleeve clamping piece, a piston core driving cylinder, a piston core driving pin, a first piston core driving shaft, a second piston core driving shaft, a first piston core positioning shaft and a second piston core positioning shaft, wherein the common driving shaft and the sleeve driving cylinder are respectively mounted on the grinding bracket through bearings and can rotate freely, and the output end of the reducer is connected to one end of the common driving shaft, the first transmission gear and the piston core driving cylinder are respectively sleeved on the outside of the common driving shaft through their own center through holes, the second transmission gear is meshed and connected with the first transmission gear, and the second transmission gear is sleeved on the outside of the sleeve driving cylinder through its own center through hole for clamping One end of the sleeve clamp holding the sleeve is connected to one end of the sleeve driving cylinder, and a spiral guide groove which is a circumferential closed loop is provided on the circumferential outer wall of the piston core driving cylinder, one end of the piston core driving pin is placed in the guide groove, and the first piston core driving shaft and the second piston core driving shaft which are parallel to each other are respectively connected to the piston core driving pin, the first piston core driving shaft and the second piston core driving shaft are respectively installed on the grinding bracket and can move axially, one end of the first piston core driving shaft is connected to one end of the first piston core positioning shaft and passes through the central through hole of the sleeve driving cylinder, one end of the second piston core positioning shaft is connected to one end of the second piston core driving shaft, the center line of the first piston core positioning shaft coincides with the center line of the second piston core positioning shaft and the other ends of the two are used to connect with the two ends of the piston core and pass through the central through hole of the sleeve clamp.

[0009] Preferably, in order to grind the two sets of products synchronously, the two transmission gears, the sleeve driving cylinder, the sleeve clamping part, the first piston core positioning shaft and the second piston core positioning shaft together constitute a driving assembly, and the piston core and sleeve automatic grinding device for the molecular sieve oxygen system includes two driving assemblies, and the two driving assemblies are respectively located on the outside of the two ends of the piston core driving cylinder. In the first driving assembly, one end of the first piston core positioning shaft is connected to one end of the first piston core driving shaft, and one end of the second piston core positioning shaft is connected to one end of the second piston core driving shaft through a connecting plate; in the second driving assembly, one end of the second piston core positioning shaft is connected to the other end of the first piston core driving shaft, and one end of the first piston core positioning shaft is connected to the other end of the second piston core driving shaft through a connecting plate.

[0010] Preferably, in order to facilitate better coordination between the two driving components, screw holes are respectively provided at both ends of the first piston core driving shaft. In the two driving components, a positioning groove is provided at the other end of the first piston core positioning shaft, and a connecting screw is provided at the other end of the second piston core positioning shaft; in the first driving component, one end of the first piston core positioning shaft is placed in the screw hole at one end of the first piston core driving shaft and is threadedly connected; in the second driving component, one end of the second piston core positioning shaft is placed in the screw hole at the other end of the first piston core driving shaft and is threadedly connected.

[0011] Preferably, in order to facilitate reliable clamping of the sleeve, the sleeve clamp includes a first clamping cylinder, a conical clamping cylinder and a second clamping cylinder. The circumferential inner wall of one end of the first clamping cylinder is provided with a boss and the boss is used to block one end of the sleeve. The circumferential inner wall surface of the first clamping cylinder close to the other end is a conical surface and the outer end diameter of the conical surface is larger than the inner end diameter. The circumferential outer wall surface of the conical clamping cylinder is a conical surface. The conical clamping cylinder is placed in the second end of the first clamping cylinder. The circumferential inner wall of one end of the second clamping cylinder is provided with a boss and the boss is used to block the conical clamping cylinder. The second clamping cylinder is sleeved on the outside of the second end of the first clamping cylinder and is threadedly connected to the second end of the first clamping cylinder. The central through hole of the first clamping cylinder, the central through hole of the conical clamping cylinder and the central through hole of the second clamping cylinder are coaxial and together form the central through hole of the sleeve clamp.

[0012] Preferably, in order to reduce the sliding resistance of the piston core driving pin in the guide groove, a boss is provided in the middle of one end of the piston core driving pin and a ball is installed at the end of the boss, and the boss and the ball are both placed in the guide groove.

[0013] Preferably, in order to improve the integration of the grinding device and reduce its volume, the piston core and sleeve automatic grinding device for the molecular sieve oxygen system also includes two bevel gears, the reducer and the grinding bracket are respectively mounted on the base plate, the drive motor is mounted on the reducer, the reducer is a right-angle reducer, the output end of the reducer is connected to the center through hole of the first bevel gear, the two bevel gears are meshed with each other, and the second bevel gear is sleeved on the outside of one end of the common drive shaft through its own center through hole and fixedly connected.

[0014] Preferably, in order to provide power and drive signals for the drive motor and facilitate control operations, a power supply component, a driver and an operation panel are also installed on the base plate.

[0015] The beneficial effects of the present invention are:

[0016] The present invention drives a common driving shaft to rotate by a driving motor, and the common driving shaft drives a sleeve driving cylinder and a piston core driving cylinder to rotate synchronously, the sleeve driving cylinder drives the sleeve clamping part and the sleeve to rotate, and the piston core driving cylinder drives the piston core driving pin to perform reciprocating linear motion, thereby driving the first piston core driving shaft and the second piston core driving shaft to perform reciprocating linear motion, and then driving the first piston core positioning shaft, the second piston core positioning shaft and the piston core to perform reciprocating linear motion, so as to form a working state in which the sleeve rotates continuously and the piston core reciprocates linearly, and the piston core is repeatedly ground in the sleeve, thereby realizing the automatic grinding function between the piston core and the sleeve, because the sleeve rotation and the reciprocating linear motion of the piston core are continuous and can be controlled with high precision by mechanical processing, so the uniform grinding effect of the piston core on the inner wall of the sleeve can be guaranteed, and the cross-section of the sleeve hole formed at last is a regular perfect circle, which significantly improves the grinding quality, forming precision and product qualification rate, and the average frequency of a single set of products can reach more than 100 times / min, which significantly improves the grinding efficiency and production efficiency, and when two driving components are used, the efficiency is doubled, and the effect is more significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure when manually grinding the piston core and sleeve;

[0018] Figure 2 It is one of the three-dimensional views of the automatic grinding device for the piston core and sleeve of the molecular sieve oxygen system of the present invention;

[0019] Figure 3 This is a second stereogram of the automatic grinding device for the piston core and sleeve of the molecular sieve oxygen system of the present invention, and Figure 2 The perspective is different and shows the internal structure of the grinding assembly;

[0020] Figure 4It is a front sectional view of the automatic grinding device for the piston core and sleeve used in the molecular sieve oxygen system of the present invention;

[0021] Figure 5 yes Figure 4 A magnified view of middle;

[0022] Figure 6 It is a front view of the piston core driving cylinder and the piston core driving pin of the automatic grinding device for the piston core and sleeve for the molecular sieve oxygen system of the present invention;

[0023] Figure 7 It is a front view of the sleeve clamping part and the sleeve of the automatic grinding device for the piston core and sleeve of the molecular sieve oxygen system of the present invention before being assembled;

[0024] Figure 8 It is a front view of the first piston core positioning shaft, the second piston core positioning shaft and the piston core of the automatic grinding device for the piston core and sleeve of the molecular sieve oxygen system of the present invention before assembly. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings:

[0026] like Figure 2-Figure 8As shown, the piston core and sleeve automatic grinding device for molecular sieve oxygen system of the present invention comprises a driving motor 4, a reducer 5, and a grinding assembly 10. The rotating shaft of the driving motor 4 is connected to the input end of the reducer 5. The grinding assembly comprises a grinding bracket (not separately marked in the figure, the grinding bracket comprises an external box body and an internal partition, etc., and the specific structure is determined according to actual needs), a common driving shaft 23, a transmission gear 17, a sleeve driving cylinder 16, a sleeve clamping member, a piston core driving cylinder 21, a piston core driving pin 18, a first piston core driving shaft 19, a second piston core driving shaft 13, a first piston core positioning shaft 14 and a second piston core positioning shaft 25. The common driving shaft 23 and the sleeve driving cylinder 16 are respectively mounted on the grinding bracket through bearings and can rotate freely. The output end of the reducer 5 is connected to one end of the common driving shaft 23. The first transmission gear 17 and the piston core driving cylinder 21 are respectively sleeved on the outside of the common driving shaft 23 through their own center through holes. The second transmission gear 17 is meshed with the first transmission gear 17. A transmission gear 17 is sleeved on the outside of the sleeve driving cylinder 16 through its own central through hole, and one end of the sleeve clamping piece for clamping the sleeve 1 is connected to one end of the sleeve driving cylinder 16. A spiral guide groove 20 is provided on the circumferential outer wall of the piston core driving cylinder 21, which is a circumferential closed loop connection. One end of the piston core driving pin 18 is placed in the guide groove 20, and the mutually parallel first piston core driving shaft and the second piston core driving shaft are respectively connected to the piston core driving pin, the first piston core driving shaft 19 and the second piston core driving shaft 13 are respectively installed on the grinding bracket and can move axially, one end of the first piston core driving shaft 19 is connected to one end of the first piston core positioning shaft 14 and passes through the central through hole of the sleeve driving cylinder 16, one end of the second piston core positioning shaft 25 is connected to one end of the second piston core driving shaft 13, the center line of the first piston core positioning shaft 14 coincides with the center line of the second piston core positioning shaft 25, and the other ends of the two are used to connect with both ends of the piston core 2 and pass through the central through hole of the sleeve clamping piece.

[0027] like Figure 2-Figure 8 As shown, the present invention also discloses the following more optimized specific structures:

[0028] In order to grind the two sets of products synchronously, two transmission gears 17, a sleeve drive cylinder 16, a sleeve clamp, a first piston core positioning shaft 14 and a second piston core positioning shaft 25 together form a drive assembly. The piston core and sleeve automatic grinding device for the molecular sieve oxygen system includes two drive assemblies, which are respectively located at the outer sides of the two ends of the piston core drive cylinder 21. The first drive assembly ( Figure 3 and Figure 4In the drive assembly on the right side of the middle), one end of the first piston core positioning shaft 14 is connected to one end of the first piston core driving shaft 19, and one end of the second piston core positioning shaft 25 is connected to one end of the second piston core driving shaft 13 through a connecting plate 15; the second drive assembly ( Figure 3 and Figure 4 In the drive assembly on the left side of the figure, one end of the second piston core positioning shaft 25 is connected to the other end of the first piston core driving shaft 19, and one end of the first piston core positioning shaft 14 is connected to the other end of the second piston core driving shaft 13 through a connecting plate 15.

[0029] In order to facilitate better coordination between the two driving components, screw holes are respectively provided at both ends of the first piston core driving shaft 19. In the two driving components, the other end of the first piston core positioning shaft 14 is provided with a positioning groove, and the other end of the second piston core positioning shaft 25 is provided with a connecting screw; in the first driving component, one end of the first piston core positioning shaft 14 is placed in the screw hole at one end of the first piston core driving shaft 19 and is threadedly connected; in the second driving component, one end of the second piston core positioning shaft 25 is placed in the screw hole at the other end of the first piston core driving shaft 19 and is threadedly connected.

[0030] In order to facilitate reliable clamping of the sleeve 1, the sleeve clamp includes a first clamping cylinder 11, a conical clamping cylinder 24 and a second clamping cylinder 12. The circumferential inner wall of one end of the first clamping cylinder 11 is provided with a boss and the boss is used to block one end of the sleeve 1. The circumferential inner wall surface close to the other end of the first clamping cylinder 11 is a conical surface and the outer end diameter of the conical surface is larger than the inner end diameter. The circumferential outer wall surface of the conical clamping cylinder 24 is a conical surface. The conical clamping cylinder 24 is placed in the second end of the first clamping cylinder 11. The circumferential inner wall of one end of the second clamping cylinder 12 is provided with a boss and the boss is used to block the conical clamping cylinder 24. The second clamping cylinder 12 is sleeved outside the second end of the first clamping cylinder 11 and is threadedly connected to the second end of the first clamping cylinder 11. The central through hole of the first clamping cylinder 11, the central through hole of the conical clamping cylinder 24 and the central through hole of the second clamping cylinder 12 are coaxial and together form the central through hole of the sleeve clamp.

[0031] In order to reduce the sliding resistance of the piston core driving pin 18 in the guide groove 20, a boss (not marked in the figure) is provided in the middle of one end of the piston core driving pin 18 and a ball (not marked in the figure) is installed at the end of the boss, and the boss and the ball are both placed in the guide groove 20.

[0032] In order to improve the integration of the grinding device and reduce the volume, the piston core and sleeve automatic grinding device for the molecular sieve oxygen system also includes two bevel gears 22, the reducer 5 and the grinding bracket are respectively installed on the base plate 7, the drive motor 4 is installed on the reducer 5, the reducer 5 is a right-angle reducer, the output end of the reducer 5 is connected to the center through hole of the first bevel gear 22, the two bevel gears 22 are meshed and connected with each other, and the second bevel gear 22 is sleeved on the outside of one end of the common drive shaft 23 through its own center through hole and fixedly connected.

[0033] In order to provide power and driving signals for the driving motor and facilitate control operations, a power supply assembly 8, a driver 9 and an operation panel 6 are also installed on the base plate 7.

[0034] like Figure 2-Figure 8 As shown, when used, first install the sleeve 1 to be ground on the sleeve clamping piece, and the sleeve 1 can be reliably positioned axially and radially through the first clamping cylinder 11, the conical pressing cylinder 24 and the second clamping cylinder 12, and then connect the first clamping cylinder 11 with the sleeve driving cylinder 16 by screws, place the tip of the piston core 2 to be ground in the positioning groove of the first piston core positioning shaft 14, connect the screw hole end of the piston core 2 with the connecting screw of the second piston core positioning shaft 25, and connect the first piston core positioning shaft 14 and the second piston core positioning shaft 25 with the first piston core driving shaft 19 and the second piston core driving shaft 13 respectively, thus completing the installation of two sets of products (one sleeve 1 and one piston core 2 are one set of products); then start the drive motor 4, and the drive motor The rotating shaft of 4 is decelerated by the reducer 5 and turned by the two bevel gears 22 to drive the common drive shaft 23 to rotate, the common drive shaft 23 drives the sleeve drive cylinder 16 and the piston core drive cylinder 21 to rotate synchronously, the sleeve drive cylinder 16 drives the sleeve clamp and the sleeve 1 to rotate, the piston core drive cylinder 21 drives the piston core drive pin 18 to reciprocate linear motion, thereby driving the first piston core drive shaft 19 and the second piston core drive shaft 13 to reciprocate linear motion, and then drives the first piston core positioning shaft 14, the second piston core positioning shaft 25 and the piston core 2 to reciprocate linear motion, so as to form a working state in which the sleeve 1 rotates continuously and the piston core 2 reciprocates linearly, and the piston core 2 is repeatedly ground in the sleeve 1, thereby realizing the automatic grinding function between the piston core 2 and the sleeve 1.

[0035] The above embodiments are only preferred embodiments of the present invention and are not limitations of the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. An automatic grinding device for piston core and sleeve of molecular sieve oxygen system, comprising a driving motor and a reducer, characterized in that: It also includes a grinding assembly, the rotating shaft of the driving motor is connected to the input end of the reducer, the grinding assembly includes a grinding bracket, a common driving shaft, a transmission gear, a sleeve driving cylinder, a sleeve clamping piece, a piston core driving cylinder, a piston core driving pin, a first piston core driving shaft, a second piston core driving shaft, a first piston core positioning shaft and a second piston core positioning shaft, the common driving shaft and the sleeve driving cylinder are respectively mounted on the grinding bracket through bearings and can rotate freely, the output end of the reducer is connected to one end of the common driving shaft, the first transmission gear and the piston core driving cylinder are respectively sleeved on the outside of the common driving shaft through their own center through holes, the second transmission gear is meshed with the first transmission gear, the second transmission gear is sleeved on the outside of the sleeve driving cylinder through its own center through hole, one end of the sleeve clamping piece for clamping the sleeve is connected to the One end of the sleeve driving cylinder is connected, and a spiral guide groove which is connected in a closed loop in a circumferential circle is provided on the circumferential outer wall of the piston core driving cylinder. One end of the piston core driving pin is placed in the guide groove, and the first piston core driving shaft and the second piston core driving shaft which are parallel to each other are respectively connected to the piston core driving pin, and the first piston core driving shaft and the second piston core driving shaft are respectively installed on the grinding bracket and can move axially, one end of the first piston core driving shaft is connected to one end of the first piston core positioning shaft and passes through the central through hole of the sleeve driving cylinder, one end of the second piston core positioning shaft is connected to one end of the second piston core driving shaft, the center line of the first piston core positioning shaft coincides with the center line of the second piston core positioning shaft and the other ends of the two are used to connect with the two ends of the piston core and pass through the central through hole of the sleeve clamp.

2. The automatic grinding device for piston core and sleeve of molecular sieve oxygen system according to claim 1, characterized in that: The two transmission gears, the sleeve driving cylinder, the sleeve clamping part, the first piston core positioning shaft and the second piston core positioning shaft together constitute a driving assembly. The piston core and sleeve automatic grinding device for the molecular sieve oxygen system includes two driving assemblies, and the two driving assemblies are respectively located on the outer sides of the two ends of the piston core driving cylinder. In the first driving assembly, one end of the first piston core positioning shaft is connected to one end of the first piston core driving shaft, and one end of the second piston core positioning shaft is connected to one end of the second piston core driving shaft through a connecting plate; in the second driving assembly, one end of the second piston core positioning shaft is connected to the other end of the first piston core driving shaft, and one end of the first piston core positioning shaft is connected to the other end of the second piston core driving shaft through a connecting plate.

3. The automatic grinding device for piston core and sleeve of molecular sieve oxygen system according to claim 2 is characterized in that: Screw holes are respectively provided at both ends of the first piston core driving shaft. In the two driving assemblies, the other end of the first piston core positioning shaft is provided with a positioning groove, and the other end of the second piston core positioning shaft is provided with a connecting screw; in the first driving assembly, one end of the first piston core positioning shaft is placed in the screw hole at one end of the first piston core driving shaft and is threadedly connected; in the second driving assembly, one end of the second piston core positioning shaft is placed in the screw hole at the other end of the first piston core driving shaft and is threadedly connected.

4. The automatic grinding device for piston core and sleeve of molecular sieve oxygen system according to any one of claims 1 to 3, characterized in that: The sleeve clamp includes a first clamping cylinder, a conical clamping cylinder and a second clamping cylinder. The circumferential inner wall of one end of the first clamping cylinder is provided with a boss and the boss is used to block one end of the sleeve. The circumferential inner wall surface close to the other end of the first clamping cylinder is a conical surface and the outer end diameter of the conical surface is larger than the inner end diameter. The circumferential outer wall surface of the conical clamping cylinder is a conical surface. The conical clamping cylinder is placed in the second end of the first clamping cylinder. The circumferential inner wall of one end of the second clamping cylinder is provided with a boss and the boss is used to block the conical clamping cylinder. The second clamping cylinder is sleeved on the outside of the second end of the first clamping cylinder and is threadedly connected to the second end of the first clamping cylinder. The central through hole of the first clamping cylinder, the central through hole of the conical clamping cylinder and the central through hole of the second clamping cylinder are coaxial and together form the central through hole of the sleeve clamp.

5. The automatic grinding device for piston core and sleeve of molecular sieve oxygen system according to any one of claims 1 to 3, characterized in that: A convex column is provided in the middle of one end of the piston core driving pin and a ball is installed at the end of the convex column. The convex column and the ball are both placed in the guide groove.

6. The automatic grinding device for piston core and sleeve of molecular sieve oxygen system according to any one of claims 1 to 3, characterized in that: The automatic grinding device for the piston core and sleeve of the molecular sieve oxygen system also includes two bevel gears, the reducer and the grinding bracket are respectively installed on the bottom plate, the drive motor is installed on the reducer, the reducer is a right-angle reducer, the output end of the reducer is connected to the central through hole of the first bevel gear, the two bevel gears are meshed and connected with each other, and the second bevel gear is sleeved on one end of the common drive shaft through its own central through hole and fixedly connected.

7. The automatic grinding device for piston core and sleeve of molecular sieve oxygen system according to claim 6, characterized in that: The base plate is also equipped with a power supply component, a driver and an operation panel.

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