CN210683213U - Movable oxygenerator with electronic flow meter - Google Patents

Abstract

The utility model relates to a movable oxygen generator with an electronic flow meter, wherein the electronic flow meter is arranged in the shell, and universal wheels are arranged at the bottom of the oxygen generator; the electronic flowmeter comprises an air inlet and outlet column, a flow regulating valve, a stepping motor bracket and a control panel, wherein a flow sensor is arranged at an air inlet or an air outlet of the air inlet and outlet column, and the flow sensor is electrically connected with a signal input module on the control panel; the flow regulating valve is in threaded fit connection with the gas inlet and outlet column; the front end of the flow regulating valve is provided with a conical needle, and the rear end of the flow regulating valve is matched with a rotor of the stepping motor; the stepping motor support is provided with a baffle, the rear end of the flow regulating valve is provided with a limiting part, and when the limiting part rotates to the position of the baffle, the conical needle of the flow regulating valve is completely inserted into the air inlet hole or the air outlet hole. After adopting above-mentioned structure, its beneficial effect is: the oxygen flow of the oxygen generator is convenient to adjust, and the oxygen flow is accurately adjusted; and the oxygen generator can move.

Description

Movable oxygenerator with electronic flow meter

Technical Field

The utility model belongs to the technical field of the oxygenerator, specific theory is about a movable oxygenerator with electronic flow meter.

Background

The oxygen generator is a very good health care product, and can achieve the purposes of treating diseases, relieving symptoms, promoting recovery, preventing pathological changes and promoting health through oxygen therapy. Clinical practice proves that the oxygen therapy can play an effective treatment role in treating acute and chronic ischemic-hypoxic diseases and secondary diseases caused by hypoxia in various clinical families by using a unique treatment mechanism. Proper oxygen absorption can also improve microcirculation.

The oxygen flow control mode of current oxygenerator mainly adjusts through flow control knob, and during the use, the user can carry out manual regulation as required, can let the audio-visual understanding oxygen flow in service behavior of user through the scale on the flowmeter simultaneously. However, since the adjustment is completely mechanical, it is difficult to precisely adjust. Moreover, after the oxygenerator was started a period, the temperature of oxygenerator rose gradually, and the air in the oxygenerator generates heat, and gas expansion, pressure grow for the flow risees, and then leads to the accuracy of flow to reduce. Therefore, the flow rate is controlled by using the existing flow meter, and the accuracy is low.

The existing electronic flowmeter generally adopts a stepping motor to control the mechanical transmission of the flowmeter. For mechanical systems that employ male and female threads for thread engagement, there is a reverse clearance. Due to the existence of the reverse clearance, when the reverse movement of the male thread and the female thread starts, the accumulated error is increased continuously, and after the reverse clearance is completely compensated, the accumulated error gradually tends to fluctuate smoothly. From the return situation of the forward and reverse directions, the influence of the reverse gap is considerable due to the commutation process from the forward direction to the reverse direction or from the reverse direction to the forward direction. I.e., one for each forward or reverse movement, there is a specific reverse gap error. This error can be obtained by measurement. Before use, the error of single unidirectional movement can be removed through programming, and the result of each forward/reverse movement is ensured to be accurate.

However, in practical applications, a problem often occurs in that, during the adjustment of the movement of the male thread and the female thread, only the forward movement is required to be performed to the first position, then the forward movement is continued to the second position, then the forward movement is continued to the third position, and the latter only needs to be performed to a certain position in the reverse movement, and then the reverse movement is continued to another position, so that the reverse clearance cannot be eliminated, and the accumulated error is larger and larger, thereby causing inaccurate results. Namely, when the mechanical transmission mode of the flowmeter adopts the mode of matching the female thread and the male thread for transmission, the electronic flowmeter can carry out speed regulation and positioning on the flowmeter when receiving an instruction; when the continuous received commands of the electronic flowmeter are pulse signals in the same direction, the reverse clearance error of the mechanical transmission of the electronic flowmeter is larger and larger, so that the flow is inaccurate.

In addition, different types of oxygen generators exist in the market at present, but most of the oxygen generators have large volume and occupy much space for storage, and particularly, the layout of parts inside the oxygen generators is dispersed, so that the volume of the oxygen generators is increased. Meanwhile, most of the existing oxygenerators are cabinet-type structures, which are large and heavy in volume and inconvenient to move, so that improvement is needed.

In addition, the existing oxygen generator utilizes molecular sieve physical adsorption and desorption technology, two molecular sieve tanks are arranged in the oxygen generator, nitrogen in the air can be adsorbed when the oxygen is pressurized, and the residual oxygen which is not adsorbed enters the oxygen storage tank through the molecular sieve tanks and then is purified to obtain high-purity oxygen. When the molecular sieve tank is pressurized, nitrogen is adsorbed by molecules in the molecular sieve tank, oxygen flows upwards and is collected, the other molecular sieve tank is depressurized, the nitrogen adsorbed by the first molecular sieve tank and the second molecular sieve tank is pressed downwards and is discharged into the ambient air, and the whole process is a periodic cycle process. However, the two molecular sieve tanks are usually connected to an oxygen storage tank through a pipeline, and the oxygen storage tank is connected to a pressurizing valve or the like through a pipeline. The pipeline is easy to age, so that the service life of the finished product is influenced, and the pipeline connection mode is adopted, so that the occupied space is large, and the volume of the finished product is increased. Meanwhile, the problems of complex structure and difficult installation exist due to more parts.

Therefore, Chinese patent CN204400611U discloses a small-sized oxygenerator molecular sieve device, which comprises two molecular sieve cylinders, an oxygen storage tank arranged between the two molecular sieve cylinders, and an upper cover arranged above the two molecular sieve cylinders, wherein a second electromagnetic valve device is arranged on the upper cover, and an air inlet and an air outlet of the second electromagnetic valve device are both arranged on the top surface of a valve body. Because the second electromagnetic valve device and the nitrogen exhauster are arranged above the molecular sieve cylinder, the height of the whole molecular sieve device is increased, and the occupied space is large. Moreover, the nitrogen discharger is arranged above the molecular sieve drum, so that the requirement on the internal air pressure of the molecular sieve drum is relatively high, and if the air pressure in the molecular sieve drum does not meet the requirement, the nitrogen at the bottom of the molecular sieve drum cannot be completely discharged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a movable oxygenerator with electronic flow meter to solve current oxygenerator and remove inconvenient and the problem that its flowmeter was adjusted inconveniently, the accuracy is low.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a movable oxygen generator with an electronic flow meter comprises a shell, wherein the shell comprises a front shell panel, a rear shell panel, a top plate and a base, a case cover is arranged between the front shell panel and the rear shell panel and is arranged above the base, a compressor assembly is arranged in the case cover, an integrated molecular sieve device is arranged in front of the case cover, a humidifying bottle is arranged in front of the integrated molecular sieve device, and four or more universal wheels are arranged at the lower end of the base and are convenient to move;

an electronic flowmeter is arranged above the case cover and comprises an air inlet and outlet column, a flow regulating valve, a stepping motor for driving the flow regulating valve to rotate, a motor support and a control panel, wherein the air inlet and outlet column comprises an air inlet column, an air outlet column and a regulating valve accommodating cavity;

the flow regulating valve is arranged in the regulating valve accommodating cavity and is in threaded fit connection with the regulating valve accommodating cavity; the front end of the flow regulating valve is provided with a conical needle, and the rear end of the flow regulating valve is matched with a rotor of the stepping motor; the flow regulating valve is provided with a sealing ring, and the sealing ring is matched with the regulating valve accommodating cavity; when the flow control valve is used, the flow aperture of oxygen is adjusted through the rotation of the rotor of the stepping motor, and when the flow control valve rotates forwards or backwards, the conical needle and the gas inlet column or the gas outlet column of the gas inlet column and the gas outlet column form gas flow spaces with different sizes, so that different flow control is realized; the motor support comprises a bottom plate, a baffle is arranged on the bottom plate, a limiting part is arranged on the side wall of the rear end of the flow regulating valve, when the limiting part rotates to the baffle, the flow regulating valve can be limited to continue to rotate towards the same direction, the conical needle of the flow regulating valve is completely inserted into the air inlet column/the air outlet column at the moment, a through hole is formed in the middle of the bottom plate, and the through hole is communicated with the regulating valve accommodating cavity of the air inlet column and the air outlet column. When the flow is regulated at every time, the limiting part of the sleeve can rotate to the position of the baffle, so that the reverse clearance returns to zero, the consistency of the error of the flow at every time is ensured, and the accuracy of the result is ensured within the operation range.

According to the utility model discloses, step motor support and business turn over gas column are integrated into one piece structure.

According to the utility model, at least two mounting holes of the stepping motor and at least two mounting holes of the bottom plate are arranged on the bottom plate, and the stepping motor is fixedly connected with the mounting holes of the stepping motor on the bottom plate through two or more fixing pieces; the bottom plate is connected with an oxygen generator.

According to the utility model, a vertical plate is arranged below the bottom plate, the vertical plate and the bottom plate are integrally formed, a control panel is arranged on the vertical plate, a signal input module and a signal output module are arranged on the control panel, and the signal input module is electrically connected with the signal output module; the signal input module is respectively and electrically connected with the flow sensor and a main board controller of the oxygen generator and is used for receiving signals of the main board controller and signals received by the flow sensor; the signal output module is connected with the stepping motor and used for controlling the stepping angle of the stepping motor.

According to the utility model discloses, the cross-section that the governing valve held the chamber is the toper, and the front end is narrow, and the rear end is wide, the sealing washer holds the chamber phase-match with the governing valve.

Furthermore, the flow control valve is provided with an annular clamping groove, the sealing ring is sleeved on the annular clamping groove, the inner side of the sealing ring is embedded in the annular clamping groove, the axial sliding of the sealing ring along the flow control valve can be prevented, the structure is stable and firm, and the sealing effect is better.

According to the utility model discloses, the integral type molecular sieve device includes first molecular sieve jar and second molecular sieve jar, still includes oxygen storage tank, relief pressure valve, first solenoid valve and the nitrogen exhauster that sets gradually from top to bottom, oxygen storage tank, relief pressure valve, first solenoid valve locate between first molecular sieve jar and the second molecular sieve jar, first molecular sieve jar, second molecular sieve jar, oxygen storage tank, relief pressure valve, first solenoid valve and nitrogen exhauster integrated design, the upper end of first molecular sieve jar, second molecular sieve jar and oxygen storage jar still is equipped with the lid, be equipped with the passageway in the lid for the upper end of first molecular sieve jar and second molecular sieve jar communicates with each other with the oxygen storage tank, the lower extreme of first molecular sieve jar and second molecular sieve jar communicates with each other with first solenoid valve, the oxygen storage jar communicates with each other with the relief pressure valve;

the first electromagnetic valve comprises an electromagnetic valve body and an electromagnetic ring, four joints are arranged on the electromagnetic valve body, namely an electromagnetic valve air inlet joint, a first electromagnetic valve air outlet joint, a second electromagnetic valve air outlet joint and an electromagnetic valve air outlet joint, the electromagnetic valve air inlet joint is arranged above the front face of the electromagnetic valve body and used for being connected with a compressor, the electromagnetic valve air outlet joint is arranged on the upper portion of the back face of the electromagnetic valve body and connected with a nitrogen exhaust device, and the first electromagnetic valve air outlet joint and the second electromagnetic valve air outlet joint are arranged on the left side face and the right side face of the electromagnetic valve body and communicated with a first molecular sieve tank and a second molecular sieve tank respectively.

According to the utility model discloses, the place ahead of integral type molecular sieve device is equipped with the change bottle and holds the chamber, the humidifying bottle holds the intracavity and installs the humidifying bottle, the humidifying bottle holds the front panel and the preceding shell panel in chamber on same horizontal plane, and the humidifying bottle holds and is equipped with LED backlight panel on the rear panel in chamber, and LED backlight panel and humidifying bottle hold and are equipped with the LED lamp between the rear panel in chamber.

According to the utility model, the height above the integrated molecular sieve device is slightly higher than that of the case cover, a silencing bottle, a mainboard controller, an oxygen concentration sensor, a second electromagnetic valve and an air source pipe joint are also arranged above the case cover, the silencing bottle, the mainboard controller, the oxygen concentration sensor and the second electromagnetic valve are sequentially arranged from back to front, the air source pipe joint is arranged on the right side of the mainboard controller, the electronic flowmeter is arranged on the right side of the second electromagnetic valve, and a bacteria filter is arranged above the electronic flowmeter; a double joint is arranged above the integrated molecular sieve device, and is respectively connected with the atomizing pipe and the oxygen pipe and is respectively used for discharging mist or oxygen; this mode of setting up rationally utilizes the space between quick-witted case cover and the roof for off-the-shelf compact structure, thereby reduce off-the-shelf volume greatly.

According to the utility model discloses, be equipped with built-in handle on the roof for carry and draw and promote the oxygenerator, perhaps directly mention the oxygenerator, it is more convenient for the oxygenerator removes, directly over the case cover is located to the handle, because the upper end of integral type molecular sieve device is higher than the upper end of case cover, consequently locate the handle directly over the case cover, can further utilize the space between case cover and the roof.

According to the utility model discloses, the compressor assembly includes the compressor, be equipped with three joint on the compressor, be first air inlet joint, the first joint of giving vent to anger and the second joint of giving vent to anger respectively, first air inlet joint passes through the gas outlet of silicone tube with the amortization bottle and links to each other, first joint of giving vent to anger is connected with first solenoid valve, the second is given vent to anger and is connected with air supply pipe joint through the air supply output tube, the air supply pipe joint pass through the air supply output tube with the second solenoid valve is connected, the second solenoid valve passes through the atomizing pipe and is connected with the double joint.

According to the utility model discloses, be equipped with axial fan on the backshell panel, axial fan locates the rear end top of compressor assembly for the compressor heat dissipation.

According to the utility model discloses, the compressor assembly is still including the bumper shock absorber of the below of locating the compressor, the bumper shock absorber is fixed on the base of casing, comes noise abatement and vibrations, improve equipment's life through the bumper shock absorber.

According to the utility model, the cover body comprises a first molecular sieve tank cover plate arranged at the left end, an oxygen storage tank cover plate arranged at the middle part and a second molecular sieve tank cover plate arranged at the right end, the first molecular sieve tank cover plate, the oxygen storage tank cover plate and the second molecular sieve tank cover plate are integrally formed, a first air inlet hole and a second air inlet hole which are communicated with the oxygen storage tank are arranged on the oxygen storage tank cover plate, the first molecular sieve tank cover plate and the second molecular sieve tank cover plate are respectively provided with a first vent hole and a second vent hole which are communicated with the first molecular sieve tank and the second molecular sieve tank, a throttling hole is arranged between the first molecular sieve tank cover plate and the second molecular sieve tank cover plate, the first vent hole and the throttling hole are communicated with the first air inlet hole, the second vent hole, the throttling hole and the second air inlet hole are communicated, and the first air inlet hole and the second air inlet hole are fixedly connected with a throttling valve respectively.

According to the utility model discloses, the diameter of first inlet port and second inlet port all is greater than the diameter of orifice to in making most gaseous entering oxygen storage tank, a small part of gas gets into another molecular sieve jar by the orifice in, is used for pushing down to first solenoid valve and discharges with the nitrogen gas in another molecular sieve jar.

According to the utility model discloses, the below of first molecular sieve jar and second molecular sieve jar all is equipped with a dual-purpose joint jack, the dual-purpose joint jack of first molecular sieve jar and second molecular sieve jar is given vent to anger respectively with the first solenoid valve of first solenoid valve and is connected and give vent to anger with the second solenoid valve and connect sealing connection for discharge nitrogen gas or send into the air, when first molecular sieve jar or second molecular sieve jar are used for making oxygen, this dual-purpose joint is as the entry of first solenoid valve conveying air, when another molecular sieve jar system oxygen, this dual-purpose joint is as the discharge port of nitrogen gas.

According to the utility model discloses, oxygen storage tank includes the gas holder body, and the gas outlet and the relief pressure valve of the gas holder body are connected, the gas outlet of relief pressure valve is passed through the silicone tube and is connected with the electron flowmeter, the electron flowmeter is connected with bacterial filter's air inlet, and bacterial filter's gas outlet is passed through the silicone tube and is connected with oxygen concentration sensor's air inlet, and oxygen concentration sensor's gas outlet is passed through the silicone tube and is connected with the humidifying bottle.

The utility model discloses a movable oxygenerator with electronic flow meter, its beneficial effect is:

1. the arrangement of the universal wheels is convenient for moving the oxygen generator.

2. The arrangement of the electronic flowmeter ensures that the oxygen flow of the oxygen generator is convenient to adjust and accurate; during each flow regulation, the stepping motor controls the reverse clearance of the electronic flowmeter to return to zero and then regulates the electronic flowmeter to a required position, so that the error can be greatly reduced, and the accuracy of the flow regulation is ensured;

3. the arrangement of the built-in lifting handle is convenient for lifting and pushing the oxygen generator, or the oxygen generator is directly lifted, so that the oxygen generator is more convenient to move.

4. The first molecular sieve tank, the second molecular sieve tank, the oxygen storage tank, the pressure reducing valve, the first electromagnetic valve and the nitrogen exhauster are integrally designed, the oxygen storage tank cover plate and the molecular sieve tank cover plates on two sides are integrally formed, and the molecular sieve cover plates on two sides are communicated through the arrangement of the throttling holes, so that the pipeline connection is reduced, the installation steps are simplified, the service life of the oxygen generator is prolonged, and the structure of a finished product can be more compact, so that the volume of the finished product is greatly reduced, the occupied space of the finished product is reduced, and the manufacturing cost of the finished product is reduced; simultaneously, the setting of orifice is convenient for discharge the nitrogen gas in first molecular sieve jar and the second molecular sieve jar, and it makes oxygen effectual, efficient.

5. Each structure mode of arranging is reasonable, and the top of quick-witted case cover is located to amortization bottle, mainboard controller, oxygen concentration sensor, second solenoid valve, air supply coupling, and the space between rational utilization quick-witted case cover and the roof, the top of integral type molecular sieve device is located to the double joint, and the space between rational utilization integral type molecular sieve device and the roof for off-the-shelf compact structure reduces off-the-shelf volume greatly.

6. The compressor is provided with an air source output pipe, so that the oxygen generator has the functions of atomization and oxygen generation; in addition, the second electromagnetic valve is arranged on the air source output pipe, and can be opened or closed as required, so that the use is convenient.

Drawings

Fig. 1 is a schematic partial sectional view of the movable oxygen generator with an electronic flow meter of the present invention.

Fig. 2 is a schematic structural diagram of the electronic flowmeter of the present invention.

Fig. 3 is a schematic top view of the flow control valve and the stepping motor bracket of the present invention.

Fig. 4 is a schematic top view of a stepper motor bracket.

Fig. 5 is a schematic structural view of a stepping motor support and an air inlet/outlet column.

Fig. 6 is a flow chart diagram of the control panel, the flow sensor, the main board controller and the stepping motor.

Fig. 7 is a partial cross-sectional view of an integrated molecular sieve device of the present invention.

Fig. 8 is a schematic structural view of the cover body of the present invention.

Fig. 9 is a schematic top view of the cover of the present invention.

Fig. 10 is a schematic structural diagram of a first electromagnetic valve according to the present invention.

Fig. 11 is a block diagram of the motherboard controller according to the present invention.

Detailed Description

The following describes the portable oxygen generator with an electronic flow meter in further detail with reference to the attached drawings.

As shown in fig. 1, the portable oxygen generator with an electronic flow meter of the present invention comprises a housing, the housing comprises a front housing panel 11, a rear housing panel 12, a top plate 13 and a base 14, the lower end of the base 14 is provided with four or more universal wheels 18 for facilitating movement; a cabinet cover 15 is arranged between the front shell panel 11 and the rear shell panel 12, an integrated molecular sieve device 10 is arranged in front of the cabinet cover 15, and a humidifying bottle accommodating cavity 16 is arranged in front of the integrated molecular sieve device 10. Install humidifying bottle 17 in the humidifying bottle holds the chamber 16, humidifying bottle holds the front panel and the preceding shell panel 11 of chamber 16 on same horizontal plane to make the casing surface level, the outward appearance is pleasing to the eye, and humidifying bottle holds and is equipped with LED backlight panel 161 on the rear panel in chamber 16, and LED backlight panel 161 and humidifying bottle hold and are equipped with LED lamp 162 between the rear panel in chamber, are convenient for observe the liquid level of humidifying bottle 17.

An electronic flow meter 900 and a second electromagnetic valve 200 are further arranged above the case cover 15, the electronic flow meter 900 is arranged on the right side of the second electromagnetic valve 200, and a bacteria filter 600 is arranged above the electronic flow meter 900.

As shown in fig. 2, 3 and 5, the electronic flow meter 900 includes an air inlet/outlet column 901, a flow regulating valve 902, a stepping motor 903, a motor support 904 and a control panel 905, the air inlet/outlet column 901 includes an air inlet column 911, an air outlet column 912 and a regulating valve accommodating cavity 913, an inner wall of the regulating valve accommodating cavity 913 is provided with an internal thread, an end face of the air inlet column 911 or the air outlet column 912 is provided with a flow sensor 953, and the flow sensor 953 is fixed on the oxygen generator and is configured to receive a flow signal of the air inlet column 911 or the air outlet column 912 and transmit the flow signal to a signal input module 951 (shown in fig. 6) on the control panel 905.

As shown in fig. 2, the flow regulating valve 902 is inserted into the regulating valve accommodating cavity 913; the flow control valve 902 includes a rotatable sleeve 921, the front end of the sleeve 921 is provided with a tapered needle 922, and the rear end of the sleeve 921 matches with a rotor 931 of the stepping motor 903. When the device is used, a driver of the stepping motor 903 drives the rotor 931 to rotate, so that the sleeve 921 is driven to rotate; and an external thread is arranged on the outer wall of the sleeve 921 and is matched with the internal thread of the regulating valve accommodating cavity 913. When the flow control valve 902 moves forward or backward, the conical needle 922 and the gas inlet column 911 of the gas inlet and outlet column 901 form gas flow spaces with different sizes, so that different flow control is realized. It should be understood that the inlet column 911 and the outlet column 912 of the inlet and outlet column 901 can be interchanged, and when in use, one of the ports can be selected as the inlet column and the other port can be selected as the outlet column according to the arrangement of internal components of the oxygen generator.

A sealing ring 924 is arranged between the conical needle 922 and the sleeve 921 to play a role in sealing and prevent oxygen from flowing out from the rear end opening of the sleeve 921.

As shown in fig. 3 and 4, motor holder 904 includes bottom plate 941, and the middle part top of bottom plate 941 is equipped with the open cylinder 942 in top, is equipped with a baffle 943 on the cylinder 942, and baffle 943 can direct joint in the draw-in groove of cylinder 942, be equipped with a locating part 923 on the rear end lateral wall of sleeve 921, when locating part 923 of sleeve 921 rotates to baffle 943 department, can restrict sleeve 921 and continue to rotate towards this direction, and the taper needle 922 of sleeve 921 inserts into air inlet column/air outlet column completely this moment, and air flow is zero promptly, when adjusting flow at every turn, the utility model discloses a stop part 923 that step motor 903 can control sleeve 921 rotates to the position of baffle 943, guarantees that the error of flow is unanimous at every turn to ensure the error at the working range, ensure the accuracy of result. It should be noted that the error of a single unidirectional movement can be determined before use. And then, the error of single unidirectional movement is removed through programming, and the result of each forward/reverse movement is ensured to be accurate.

As shown in fig. 4, a through hole 944 is formed in the middle of the bottom plate 941, and the through hole 944 is communicated with the regulating valve accommodating chamber 913 of the air inlet/outlet column 901.

As shown in fig. 3, the rear end of the sleeve 921 is a rectangular hole 926, the rectangular hole 926 matches with the rotor 931 of the stepping motor 903, and the sleeve 921 is rotated by the rotation of the rotor 931.

The motor bracket 904 and the air inlet/outlet column 901 are integrally formed.

At least two stepping motor mounting holes 945 and at least two base plate mounting holes 946 are formed in the base plate 941, and the stepping motor 903 is fixedly connected with the stepping motor mounting holes 945 in the base plate 941 through two or more fixing pieces (such as bolts or screws); the base plate 941 is connected to the oxygen generator, and when the oxygen generator is used, the base plate mounting hole 946 on the base plate can penetrate two or more fixing members (such as bolts or screws) to be connected to the oxygen generator.

As shown in fig. 2 and 6, a vertical plate 947 is further installed below the bottom plate 941, the vertical plate 947 and the bottom plate 941 are integrally formed, a control panel 905 is installed on the vertical plate 947 (a control panel installation hole 948 is installed on the vertical plate 947, and the control panel installation hole 948 can pass through a fixing member (such as a bolt or a screw, etc.) to install the control panel 905 on the vertical plate 947), a signal input module 951 and a signal output module 952 are installed on the control panel 905, and the signal input module 951 and the signal output module 952 are electrically connected; the signal input module 951 is electrically connected with the flow sensor 953 and the main board controller 800 of the oxygen generator respectively and is used for receiving signals of the main board controller 800 and signals received by the flow sensor 953; the signal output module 952 is connected to the stepping motor 903 and is configured to control a stepping angle of the stepping motor 903.

The cross-section that the chamber 913 was held to the governing valve is the toper, and the front end is narrow, and the rear end is wide, sealing washer 924 and governing valve hold the chamber 913 phase-match.

A connecting piece 925 is further arranged between the sleeve 921 and the conical needle 922, the connecting piece 925 and the conical needle 922 are integrally formed, and the sleeve 921 and the connecting piece 925 are connected in an inserting mode and fixedly connected through glue and the like. The connecting piece 925 is provided with an annular clamping groove, the sealing ring 924 is sleeved on the annular clamping groove, the inner side of the sealing ring 924 is embedded in the annular clamping groove, the axial sliding of the sealing ring 924 along the flow regulating valve can be prevented, the structure is stable and firm, and the sealing effect is better.

As shown in fig. 1, a touch panel 131 and a liquid crystal display 132 are disposed above the top plate 13, and the touch panel 131 and the liquid crystal display 132 are connected to a main board controller 800.

As shown in fig. 7, the integrated molecular sieve device 10 includes a first molecular sieve tank 41 and a second molecular sieve tank 42, and further includes an oxygen storage tank 5, a pressure reducing valve 6, a first electromagnetic valve 7 and a nitrogen discharging device 8 which are sequentially arranged from top to bottom, the oxygen storage tank 5, the pressure reducing valve 6 and the first electromagnetic valve 7 are arranged between the first molecular sieve tank 41 and the second molecular sieve tank 42, the first molecular sieve tank 41, the second molecular sieve tank 42, the oxygen storage tank 5, the pressure reducing valve 6, the first electromagnetic valve 7 and the nitrogen discharging device 8 are integrally designed, the volume is greatly reduced, the upper ends of the first molecular sieve tank 41, the second molecular sieve tank 42 and the oxygen storage tank 5 are further provided with a cover body 9, a channel is arranged in the cover body 9, so that the upper ends of the first molecular sieve tank 41 and the second molecular sieve tank 42 are communicated with the oxygen storage tank 5, the lower ends of the first molecular sieve tank 41 and the second molecular sieve tank 42 are communicated with the first electromagnetic valve 7, the oxygen storage tank 5 is communicated with a pressure reducing valve 6.

The pressure reducing valve 6 is provided with a pressure reducing valve air outlet 61, and is sequentially connected with an electronic flowmeter 900, a bacteria filter 600, an oxygen concentration sensor 700 and a humidification bottle 17 on the oxygen generator through a silicone tube 31.

As shown in fig. 1, a compressor assembly 2 is disposed in the housing cover 15; the cabinet cover 15 is arranged above the base 14, and silencing cotton 300 is arranged between the cabinet cover 15 and the base 14 and used for eliminating noise in the working process of the compressor assembly 2; a gap layer is arranged between the case cover 15 and the rear shell panel 12, the thickness of the gap layer is 2-3cm (namely, a gap is reserved between the case cover and the rear shell panel), and the sound insulation effect can be improved; the housing cover 15 is made of a sound-deadening material, or a sound-deadening material such as slag wool, wave-crest sponge or foamed rubber is arranged on the outer layer of the housing cover 15.

The height above the integrated molecular sieve device 10 is slightly higher than that of the cabinet cover 15, a silencing bottle 100, a main board controller 800, an oxygen concentration sensor 700, a second electromagnetic valve 200 and an air source pipe joint 35 are arranged above the cabinet cover 15, the silencing bottle 100, the main board controller 800, the oxygen concentration sensor 700 and the second electromagnetic valve 200 are sequentially arranged from back to front, and the air source pipe joint 35 is arranged on the right side of the main board controller 800; a double joint 34 is arranged above the integrated molecular sieve device 10, and the double joint 34 is respectively connected with an atomizing pipe 33 and an oxygen pipe 36 and is respectively used for discharging mist or oxygen; this mode of setting rationally utilizes the space between quick-witted case lid 15 and roof 13 for the finished product compact structure, thereby reduce off-the-shelf volume greatly.

The top plate 13 is provided with a built-in lifting handle 133 for lifting and pushing the oxygen generator or directly lifting the oxygen generator, so that the oxygen generator is more convenient to move, the lifting handle 133 is arranged right above the case cover 15, and the lifting handle 133 is arranged right above the case cover 15 because the upper end of the integrated molecular sieve device 10 is higher than the upper end of the case cover 15, so that the space between the case cover 15 and the top plate 13 can be further utilized.

As shown in fig. 1, the compressor assembly 2 includes a compressor 20, three joints are provided on the compressor 20, which are a first air inlet joint 21, a first air outlet joint 22 and a second air outlet joint 23, the first air inlet joint 21 is connected to the air outlet of the silencing bottle 100 through a silicone tube 31, the first air outlet joint 22 is connected to a first electromagnetic valve 7 (shown in fig. 10) through the silicone tube 31, the second air outlet joint 23 is connected to an air source pipe joint 35 through an air source output pipe 32, the air source pipe joint 35 is connected to a second electromagnetic valve 200 through the air source output pipe 32, and the second electromagnetic valve 200 is connected to a double joint 34 through an atomizing pipe 33.

As shown in fig. 1, an air duct is disposed on the rear shell panel 12, an axial flow fan 400 is disposed in the air duct, and the axial flow fan 400 is disposed above the rear end of the compressor assembly 2 and is used for dissipating heat from the compressor 20 to prolong the service life of the compressor. The rear end of the air duct is provided with an air duct air inlet cover 500 to ensure the use safety. The air duct inlet cover 500 is in the same horizontal plane with the rear housing panel 12 to make the housing appearance flat. Wherein, the connected mode of wind channel air inlet cover and casing is prior art, if direct fixed connection, adopts the bolt can dismantle the connection etc. for the ease of maintenance convenience, can adopt to dismantle the connected mode.

The compressor assembly 2 further comprises a damper 24 arranged below the compressor 20, the damper 24 is fixed on the base of the shell, noise and vibration are reduced through the damper 24, and the service life of the equipment is prolonged.

As shown in fig. 8 and 9, the cover 9 includes a first molecular sieve tank cover plate 91 disposed at the left end, an oxygen storage tank cover plate 93 disposed at the middle part, and a second molecular sieve tank cover plate 92 disposed at the right end, the first molecular sieve tank cover plate 91, the oxygen storage tank cover plate 93, and the second molecular sieve tank cover plate 92 are integrally formed, the oxygen storage tank cover plate 93 is provided with a first air inlet 94 and a second air inlet 95 communicated with the oxygen storage tank 5, the first molecular sieve tank cover plate 91 and the second molecular sieve tank cover plate 92 are respectively provided with a first vent hole 96 and a second vent hole 97 communicated with the first molecular sieve tank 41 and the second molecular sieve tank 42, a throttle hole 98 is disposed between the first molecular sieve tank cover plate 91 and the second molecular sieve tank cover plate 92, the first vent hole 96 and the throttle hole 98 are communicated with the first air inlet 94, the second vent hole 97, the throttle hole 98 are communicated with the second air inlet 95, the first air inlet 94 and the second air inlet 95 are respectively fixedly connected with a throttle valve 99.

The diameters of the first gas inlet hole 94 and the second gas inlet hole 95 are both larger than the diameter of the throttle hole 98, so that most of the gas enters the oxygen storage tank 5, and a small part of the gas enters the other molecular sieve tank through the throttle hole 98, and is used for pressing the nitrogen in the other molecular sieve tank to the first electromagnetic valve 7 for discharging.

As shown in fig. 1 and 10, the first electromagnetic valve includes an electromagnetic valve body 71 and an electromagnetic ring 72, four joints are provided on the electromagnetic valve body 71, which are an electromagnetic valve inlet joint 73, a first electromagnetic valve outlet joint 74, a second electromagnetic valve outlet joint 75 and an electromagnetic valve outlet joint (not shown in the figures), the electromagnetic valve inlet joint 73 is provided above the front of the electromagnetic valve body 71 for connecting with the compressor 20, the electromagnetic valve outlet joint is provided on the upper portion of the back of the electromagnetic valve body 71 and connected with the nitrogen exhaust device 8, and the first electromagnetic valve outlet joint 74 and the second electromagnetic valve outlet joint 75 are provided on the left and right side surfaces of the electromagnetic valve body 71 and respectively communicated with the first molecular sieve tank 41 and the second molecular sieve tank 42.

As shown in fig. 7 and 10, a dual-purpose connector jack 44 is disposed below each of the first molecular sieve tank 41 and the second molecular sieve tank 42, the dual-purpose connector jacks 44 of the first molecular sieve tank 41 and the second molecular sieve tank 42 are respectively connected with the first solenoid valve outlet connector 74 and the second solenoid valve outlet connector 75 of the first solenoid valve 7 in a sealing manner, and are used for discharging nitrogen or feeding air, when the first molecular sieve tank 41 or the second molecular sieve tank 42 is used for oxygen generation, the dual-purpose connector 44 serves as an inlet for conveying air to the first solenoid valve 7, and when the other molecular sieve tank is used for oxygen generation, the dual-purpose connector 44 serves as a discharge outlet for nitrogen.

As shown in fig. 1 and 7, the oxygen storage tank 5 includes a gas storage tank body 51, an air outlet of the gas storage tank body 51 is connected to the pressure reducing valve 6, an air outlet of the pressure reducing valve 6 is connected to the electronic flow meter 900 through the silicone tube 31, the electronic flow meter 900 is connected to an air inlet of the bacterial filter 600, an air outlet of the bacterial filter 600 is connected to an air inlet of the oxygen concentration sensor 700 through the silicone tube 31, and an air outlet of the oxygen concentration sensor 700 is connected to the humidification bottle 17 through the silicone tube 31.

As shown in fig. 1, four universal wheels 18 are mounted below the base 14, so that the movement and the use are convenient.

The base 14 is provided with a nitrogen exhaust outlet (not shown), and the nitrogen exhaust 8 is connected with the nitrogen exhaust outlet on the base 14, so as to exhaust nitrogen gas into ambient air.

The oxygen storage tank 5 and the pressure reducing valve 6 are connected in a threaded fit manner.

The first molecular sieve tank 41, the second molecular sieve tank 42 and the oxygen storage tank 5 are all 3 liter tanks, and the air pressure of the two molecular sieve tanks is 0.04MPa-0.05 MPa.

As shown in fig. 11, the oxygen generator of the present invention further includes a main board controller 800, wherein the main board controller 800 includes an encoding circuit 801 for controlling the compressor 20, the axial flow fan 400, the second electromagnetic valve 200, the oxygen concentration sensor 700, the first electromagnetic valve 7, the electronic flow meter 900, etc.; an emitting circuit 802 connected to the encoding circuit 801 and sending out signals to control the compressor 20, the axial flow fan 400, the second electromagnetic valve 200, the oxygen concentration sensor 700, the electronic flow meter 900, and the like; and a power supply 803 for providing power for the encoding circuit 801 and the transmitting circuit 802.

The utility model discloses a movable oxygenerator with electronic flow meter's use as follows:

air is sucked by the air inlet of the silencing bottle 100, then flows out of the air outlet of the silencing bottle 100, and enters the compressor 20 through the silicone tube; the compressor 20 compresses air, the air flows out of the first air outlet joint 22 after being compressed, enters the first electromagnetic valve 7 through the silicone tube 31, and is shunted through the first electromagnetic valve 7; when the second electromagnetic valve 200 is in the open state, air is compressed and then flows out through the atomizing tube and the double joint 34.

The air compressed by the compressor 20 enters the first molecular sieve tank 41 through the first electromagnetic valve 7, the nitrogen is adsorbed by molecules in the first molecular sieve tank 41 or the second molecular sieve tank 42, the oxygen flows upwards and enters the cover body 9 from the first vent hole 96, then the air flow simultaneously enters the first air inlet 94 and the orifice 98, the air flow enters the throttle valve 99, and most of the oxygen flows out from the other outlet of the throttle valve 99 and enters the oxygen storage tank 5. Then, the oxygen in the oxygen storage tank 5 sequentially enters the pressure reducing valve 6, the electronic flow meter 900, the bacteria filter 600, the oxygen concentration sensor 700 and finally enters the humidification bottle 17. After being humidified, the oxygen entering the humidification bottle 17 enters the double joint 34 through the oxygen pipe 36 and then flows out from the oxygen outlet of the double joint. At the same time, the orifice 98 passes a small portion of the oxygen gas flow into the other molecular sieve tank to press down the nitrogen gas in the other molecular sieve tank, and the nitrogen gas enters the nitrogen gas inlet 77 of the first solenoid valve from the exhaust hole 90 of the other molecular sieve tank, then enters the nitrogen ejector 8, and finally is discharged to the ambient air. When the device works, the two molecular sieve tanks circularly and alternately generate oxygen and discharge nitrogen, and the working efficiency is high.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A movable oxygen generator with an electronic flow meter comprises a shell and is characterized in that the shell comprises a front shell panel, a rear shell panel, a top plate and a base, a case cover is arranged between the front shell panel and the rear shell panel and arranged above the base, a compressor assembly is arranged in the case cover, an integrated molecular sieve device is arranged in front of the case cover, a humidifying bottle is arranged in front of the integrated molecular sieve device, and four or more universal wheels are arranged at the lower end of the base;

an electronic flowmeter is arranged above the case cover and comprises an air inlet and outlet column, a flow regulating valve, a stepping motor for driving the flow regulating valve to rotate, a motor support and a control panel, wherein the air inlet and outlet column comprises an air inlet column, an air outlet column and a regulating valve accommodating cavity;

the flow regulating valve is arranged in the regulating valve accommodating cavity and is in threaded fit connection with the regulating valve accommodating cavity; the front end of the flow regulating valve is provided with a conical needle, and the rear end of the flow regulating valve is matched with a rotor of the stepping motor; the flow regulating valve is provided with a sealing ring, and the sealing ring is matched with the regulating valve accommodating cavity;

the motor support comprises a bottom plate, a baffle is arranged on the bottom plate, a limiting piece is arranged on the side wall of the rear end of the flow regulating valve, and when the limiting piece rotates to the baffle, a conical needle of the flow regulating valve is completely inserted into the air inlet column or the air outlet column; the middle part of the bottom plate is provided with a through hole which is communicated with the regulating valve accommodating cavity of the air inlet and outlet column.

2. The movable oxygen generator with electronic flow meter according to claim 1, wherein the step motor support and the air inlet and outlet column are an integrated structure.

3. The movable oxygen generator with the electronic flow meter according to claim 1, wherein a vertical plate is further installed below the bottom plate, the vertical plate and the bottom plate are integrally formed, the control panel is installed on the vertical plate, a signal input module and a signal output module are arranged on the control panel, and the signal input module and the signal output module are electrically connected; the signal input module is respectively and electrically connected with the flow sensor and a main board controller of the oxygen generator; the signal output module is connected with the stepping motor.

4. The portable oxygen generator with electronic flow meter according to claim 1, the integrated molecular sieve device comprises a first molecular sieve tank, a second molecular sieve tank, an oxygen storage tank, a pressure reducing valve, a first electromagnetic valve and a nitrogen exhaust device which are sequentially arranged from top to bottom, the oxygen storage tank, the pressure reducing valve and the first electromagnetic valve are arranged between the first molecular sieve tank and the second molecular sieve tank, the first molecular sieve tank, the second molecular sieve tank, the oxygen storage tank, the pressure reducing valve, the first electromagnetic valve and the nitrogen exhauster are designed integrally, the upper ends of the first molecular sieve tank, the second molecular sieve tank and the oxygen storage tank are also provided with cover bodies, channels are arranged in the cover bodies, the upper ends of the first molecular sieve tank and the second molecular sieve tank are communicated with an oxygen storage tank, the lower ends of the first molecular sieve tank and the second molecular sieve tank are communicated with a first electromagnetic valve, and the oxygen storage tank is communicated with a pressure reducing valve;

the first electromagnetic valve comprises an electromagnetic valve body and an electromagnetic ring, four joints are arranged on the electromagnetic valve body, namely an electromagnetic valve air inlet joint, a first electromagnetic valve air outlet joint, a second electromagnetic valve air outlet joint and an electromagnetic valve air outlet joint, the electromagnetic valve air inlet joint is arranged above the front face of the electromagnetic valve body and connected with the compressor, the electromagnetic valve air outlet joint is arranged on the upper portion of the back face of the electromagnetic valve body and connected with the nitrogen exhaust device, and the first electromagnetic valve air outlet joint and the second electromagnetic valve air outlet joint are arranged on the left side face and the right side face of the electromagnetic valve body and communicated with the first molecular sieve tank and the second molecular sieve tank respectively.

5. The movable oxygen generator with the electronic flow meter according to claim 4, wherein the integrated molecular sieve device is higher than the case cover, a silencing bottle, a main board controller, an oxygen concentration sensor, a second electromagnetic valve and a gas source pipe joint are further arranged above the case cover, the silencing bottle, the main board controller, the oxygen concentration sensor and the second electromagnetic valve are sequentially arranged from back to front, the gas source pipe joint is arranged on the right side of the main board controller, the electronic flow meter is arranged on the right side of the second electromagnetic valve, and a bacteria filter is arranged above the electronic flow meter; and a double joint is arranged above the integrated molecular sieve device and is respectively connected with the atomizing pipe and the oxygen pipe.

6. The movable oxygen generator with electronic flow meter according to claim 5, wherein the compressor assembly comprises a compressor, the compressor is provided with three connectors, namely a first air inlet connector, a first air outlet connector and a second air outlet connector, the first air inlet connector is connected with the air outlet of the silencing bottle through a silicone tube, the first air outlet connector is connected with the first electromagnetic valve, the second air outlet connector is connected with the air source connector through an air source output tube, the air source connector is connected with the second electromagnetic valve through an air source output tube, and the second electromagnetic valve is connected with the double connector through an atomizing tube.

7. The portable oxygen generator with electronic flow meter according to claim 6, wherein the cover comprises a first molecular sieve tank cover plate arranged at the left end, an oxygen storage tank cover plate arranged at the middle part, and a second molecular sieve tank cover plate arranged at the right end, the first molecular sieve tank cover plate, the oxygen storage tank cover plate, and the second molecular sieve tank cover plate are integrally formed, the oxygen storage tank cover plate is provided with a first air inlet hole and a second air inlet hole communicated with the oxygen storage tank, the first molecular sieve tank cover plate and the second molecular sieve tank cover plate are respectively provided with a first vent hole and a second vent hole communicated with the first molecular sieve tank and the second molecular sieve tank, a throttle hole is arranged between the first molecular sieve tank cover plate and the second molecular sieve tank cover plate, the first vent hole, the throttle hole and the first air inlet hole are communicated, the second vent hole, the throttle hole and the second air inlet hole are communicated, the first air inlet and the second air inlet are respectively and fixedly connected with a throttling valve.

8. The portable oxygen generator with electronic flow meter according to claim 7, wherein the diameter of the first and second air inlet holes is larger than that of the orifice hole.

9. The movable oxygen generator with electronic flow meter according to claim 8, wherein a dual-purpose joint jack is provided below each of the first molecular sieve tank and the second molecular sieve tank, and the dual-purpose joint jacks of the first molecular sieve tank and the second molecular sieve tank are respectively connected with the first electromagnetic valve outlet joint and the second electromagnetic valve outlet joint of the first electromagnetic valve in a sealing manner.

10. The movable oxygen generator with electronic flow meter according to claim 5, wherein the oxygen storage tank comprises a gas storage tank body, the gas outlet of the gas storage tank body is connected with a pressure reducing valve, the gas outlet of the pressure reducing valve is connected with the electronic flow meter, the electronic flow meter is connected with the gas inlet of the bacterial filter, the gas outlet of the bacterial filter is connected with the gas inlet of the oxygen concentration sensor, and the gas outlet of the oxygen concentration sensor is connected with the humidification bottle through a silicone tube.

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