CN114642945B - Medical oxygen generator based on valve design slow flow assembly - Google Patents
Medical oxygen generator based on valve design slow flow assembly Download PDFInfo
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- CN114642945B CN114642945B CN202210292749.2A CN202210292749A CN114642945B CN 114642945 B CN114642945 B CN 114642945B CN 202210292749 A CN202210292749 A CN 202210292749A CN 114642945 B CN114642945 B CN 114642945B
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- oxygen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention relates to the technical field of medical oxygen generating devices, in particular to a medical oxygen generator based on a valve design slow flow component, which comprises an oxygen generating box and an air compressor, wherein the air compressor is installed in an inner cavity of the oxygen generating box through a support frame, an air inlet end of the air compressor is connected with an air inlet pipe through a pipe joint, an air outlet end of the air compressor is connected with a split pipe through a pipe joint, a first control valve and a second control valve are installed on the left side and the right side of the split pipe, and the oxygen generating component is installed on the split pipe, and the medical oxygen generator has the beneficial effects that: through air compressor and system oxygen subassembly cooperation, make oxygen after filtering through the system oxygen subassembly after with air compression, through the slow flow mechanism of setting, oxygen flows along the protection tube, plays the effect of slow flow to oxygen through slow flow pipe, slow flow board and the slow flow baffle of setting to can prevent that the air current from directly impacting adjustment mechanism, thereby protect the valve of oxygenerator.
Description
Technical Field
The invention relates to the technical field of medical oxygen generating devices, in particular to a medical oxygen generator based on a valve design slow flow component.
Background
The medical oxygen generator is a medical equipment for extracting oxygen from air by using pressure swing adsorption technology. The medical oxygenerator is of a common type, namely a pressure swing adsorption oxygenerator, and oxygen can be extracted from air by adopting a pressure swing adsorption technology to generate oxygen. The medical oxygen generator is filled with molecular sieves, the oxygen-making raw material is air, the air is filtered and then enters a compressor for compression, compressed high-pressure air is cooled and then enters an adsorption tower for adsorption separation, the molecular sieves are filled in the adsorption tower, nitrogen and carbon dioxide are adsorbed by the molecular sieves, and gas flowing out of the adsorption tower is oxygen with higher purity and can be used as medical oxygen. And the separated oxygen enters an air storage tank for storage. The existing medical oxygenerator is insufficient in actual use, an air filtering device is arranged in the oxygenerator in order to improve the quality of air, but most of the existing medical oxygenerator is provided with a single filtering device and an adsorption tower, and the inside of the existing medical oxygenerator needs to be cleaned after the filtering device and the adsorption tower are used for a long time, so that the working of the oxygenerator needs to be suspended, the normal use of the oxygenerator is influenced, and the oxygenerator production efficiency is influenced; the control valve on the existing oxygenerator is not provided with a slow flow device, and high-pressure circulated gas can cause damage to the valve, so that leakage of oxygen and the like is caused, and normal use of the oxygenerator is further affected. The existing oxygenerator is not provided with a backflow prevention valve, and when the oxygenerator stops working, the oxygen in the air storage tank can flow back, so that devices in the oxygenerator are damaged. Therefore, we propose a medical oxygen generator based on valve design slow flow component to solve the above-mentioned drawback.
Disclosure of Invention
The invention aims to provide a medical oxygen generator based on a valve design slow flow component, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a medical oxygen generator based on valve design slow flow subassembly, includes oxygen generation case and air compressor, air compressor installs the inner chamber of oxygen generation case through the support frame, air compressor's inlet end is connected with the intake pipe through the coupling, air compressor's the end of giving vent to anger is connected with the shunt tubes through the coupling, install first control valve and second control valve about the side of shunt tubes, install the oxygen generation subassembly on the shunt tubes, the upper end welding of oxygen generation case has control valve body, the ball groove has been seted up to control valve body's inboard, the air inlet has been seted up to control valve body's left and right sides symmetry, the gas outlet has been seted up to control valve body's side, the seal groove has been seted up to control valve body's upper end, control valve body's left and right sides symmetry is provided with slow flow mechanism, the one end of protection tube is provided with sealing mechanism in the slow flow mechanism, control valve body's side is provided with anti-reflux mechanism, control valve body's inboard is provided with adjustment mechanism, be provided with positioning mechanism in the spacing groove.
Preferably, the oxygen generating assembly comprises: the novel filter comprises a first filter device, a first adsorption tower body, a second filter device and a second adsorption tower body, wherein the first filter device and the second filter device are connected at the left end and the right end of a shunt pipe through bolts, the first adsorption tower body is connected at the upper end of the first filter device through bolts, and the second adsorption tower body is connected at the upper end of the second filter device through bolts.
Preferably, the upper end of the control valve body is welded with connection indication plates in bilateral symmetry, and the upper end of the control valve body is welded with switch indication plates in front and back symmetry.
Preferably, the slow flow mechanism comprises: protection tube, slow flow pipe, slow flow board, slow flow baffle and external screw thread cover, the left and right sides symmetry of control valve body is provided with the protection tube, the inner chamber of protection tube is provided with the slow flow pipe, the inner chamber welding of slow flow pipe has the slow flow board, the both ends symmetry welding of slow flow pipe has the slow flow baffle, and the side welding of one of them slow flow baffle has the external screw thread cover.
Preferably, one end of the protection pipe is fixedly connected with the control valve body through a bolt, the other ends of the two protection pipes are connected with connecting pipes through bolts, the connecting pipes are bending pipes, one connecting pipe is fixedly connected with the first adsorption tower body through a bolt, and the other connecting pipe is fixedly connected with the second adsorption tower body through a bolt.
Preferably, the slow flow plate is a bending plate, through holes are formed in the side surface of the slow flow baffle plate, which is a circular plate, in a circumferential array, an inner thread is formed in the inner cavity of the protection tube, and the outer thread sleeve is in threaded connection with the protection tube.
Preferably, the sealing mechanism comprises: the sealing device comprises a sealing gasket, an annular sealing plate and an annular groove, wherein the sealing gasket is sleeved in the sealing groove, the annular sealing plate is welded on the side face of the protection pipe, the annular groove is formed in the side face of the annular sealing plate, the annular sealing plate is inserted into the sealing groove, the end portion of the annular sealing plate is in contact with the sealing gasket, and the sealing gasket is clamped with the annular groove.
Preferably, the backflow prevention mechanism comprises: prevent back flow, spout, fixed bolster, sealing block, stopper, gag lever post and spacing spring, control valve's side welding has prevents back flow, the spout has been seted up to the inner chamber bilateral symmetry of preventing back flow, prevent back flow's inner chamber welding has the fixed bolster, the round hole has been seted up to the side of fixed bolster, the inner chamber joint of preventing back flow has the sealing block, the face of cylinder bilateral symmetry welding of sealing block has the stopper, the side welding of sealing block has the gag lever post, the cover is equipped with spacing spring on the gag lever post, gag lever post and fixed bolster sliding connection, the one end of gag lever post passes the round hole welding and has fixed circle piece.
Preferably, the adjusting mechanism comprises: the anti-leakage device comprises a spherical plug, an L-shaped launder, an anti-leakage ring, a rotating shaft, an annular fixed block, a positioning groove, an adjusting knob and an indication arrow, wherein the spherical plug is rotationally connected in the spherical groove through a pin shaft, the L-shaped launder is arranged on the side face of the spherical plug, the anti-leakage ring is sleeved on the spherical plug and is in sliding connection with the anti-leakage ring, the anti-leakage ring is bonded with the spherical groove, the rotating shaft is welded at the upper end of the spherical plug, the rotating shaft is rotationally connected with a control valve body, the annular fixed block is welded on the rotating shaft, the annular fixed block is rotationally connected with the control valve body, the four positioning grooves are formed in a circumferential array on the side face of the annular fixed block, the upper end of the rotating shaft penetrates through the control valve body and is welded with the adjusting knob, and the two indication arrows are welded at the upper end of the adjusting knob and form a ninety-degree included angle.
Preferably, the positioning mechanism comprises: the side of the control valve body is inserted with an adjusting rod, the adjusting rod is in sliding connection with the control valve body, the adjusting rod is sleeved with the positioning spring, one end of the adjusting rod is welded with the positioning block, the positioning block is in sliding connection with the limiting groove, and one end of the positioning block penetrates through the control valve body and is clamped with the limiting groove.
Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality and has the following advantages:
1. the air compressor is matched with the oxygen generating assembly, air is filtered through the oxygen generating assembly to prepare oxygen, the oxygen flows along the protection pipe through the slow flow mechanism, and the slow flow pipe, the slow flow plate and the slow flow baffle plate play a slow flow role on the oxygen, so that the air flow can be prevented from directly impacting the regulating mechanism, and the valve of the oxygen generator is protected;
2. when the oxygenerator normally works, oxygen pushes the sealing block to be separated from the backflow preventing pipe, so that an interval is formed between the sealing block and the backflow preventing pipe, the sealing block extrudes the limiting spring, air flows normally circulate along the interval, oxygen is introduced into the air storage tank, and when the oxygenerator stops working, the sealing block is in sealing connection with the backflow preventing pipe under the elastic force of the limiting spring, so that the oxygen backflow can be effectively prevented, and components in the oxygenerator are damaged;
3. when the oxygen generating component in the oxygenerator needs to be replaced or cleaned, the positioning block and the positioning groove in the positioning mechanism are separated, the adjusting knob is rotated at the moment, and the adjusting knob drives the spherical plug to rotate through the rotating shaft, so that the oxygen generating path is replaced, when the oxygen generating component needs to be replaced, the control valve corresponding to the lower ends of the filtering device and the adsorption tower is closed, so that the filtering device and the adsorption tower can be conveniently replaced or cleaned, and the two groups of filtering devices and the adsorption tower are designed, so that the oxygen generating device does not need to be stopped in the replacement or cleaning process.
Drawings
FIG. 1 is a schematic view of an oxygen generator according to the present invention;
FIG. 2 is a schematic cross-sectional view of an oxygen generator according to the present invention;
FIG. 3 is a schematic diagram of the control valve, the flow retarding mechanism and the backflow preventing mechanism of the present invention;
FIG. 4 is a schematic view of a slow flow mechanism according to the present invention;
FIG. 5 is a schematic cross-sectional view of the control valve body and damping mechanism of the present invention;
FIG. 6 is an enlarged schematic view of the structure shown in FIG. 5A;
FIG. 7 is a cross-sectional view of the control valve body, ball plug and anti-reflux mechanism of the present invention;
FIG. 8 is a schematic view of the structure of the backflow prevention pipe of the present invention;
FIG. 9 is a schematic view of a backflow prevention mechanism according to the present invention;
FIG. 10 is a three-dimensional view of the control valve body structure of the present invention;
FIG. 11 is a schematic view of the interior of the control valve body structure of the present invention;
fig. 12 is a schematic structural view of an adjusting mechanism of the present invention.
In the figure: 1. an oxygen generating box; 11. an air compressor; 12. a shunt; 13. a first control valve; 14. a second control valve; 15. an air inlet pipe; 2. a first filtering device; 21. a first adsorption tower body; 22. a second filtering device; 23. a second adsorption tower body; 3. a control valve body; 31. a spherical groove; 32. an air inlet; 33. an air outlet; 34. sealing grooves; 35. a sealing gasket; 36. a limit groove; 4. a protective tube; 41. a buffer tube; 42. a slow flow plate; 43. a slow flow baffle; 44. an external thread sleeve; 45. an annular sealing plate; 46. an annular groove; 5. a backflow prevention pipe; 51. A chute; 52. a fixed bracket; 6. a sealing block; 61. a limiting block; 62. a limit rod; 63. A limit spring; 7. a spherical plug; 71. an L-shaped launder; 72. a leakage preventing ring; 73. a rotating shaft; 74. An annular fixed block; 75. a positioning groove; 76. an adjustment knob; 77. an indication arrow; 8. an adjusting rod; 81. a positioning spring; 82. and (5) positioning blocks.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 12, the present invention provides a technical solution: the utility model provides a medical oxygen generator based on valve design slow flow subassembly, including oxygen generation case 1 and air compressor 11, air compressor 11 passes through the inner chamber of support frame installation oxygen generation case 1, and air compressor 11's inlet end is connected with intake pipe 15 through the coupling, and air compressor 11's end of giving vent to anger is connected with shunt tubes 12 through the coupling, installs first control valve 13 and second control valve 14 about the side of shunt tubes 12, installs the oxygen generation subassembly on the shunt tubes 12, and the oxygen generation subassembly is including: the air compressor 11 sucks air in and compresses the air through the air inlet pipe 15, and after the air is subjected to oxygenerator treatment, the air flows through the filtering device and the adsorption tower to form oxygen, and the first control valve 13 and the second control valve 14 are in an open state during normal operation.
The upper end welding of system oxygen case 1 has control valve body 3, and the upper end bilateral symmetry welding of control valve body 3 has the connection sign, and the connection sign is for marking "1" and "2" sign, and the upper end front and back symmetry welding of control valve body 3 has the switch sign, and the switch sign is for marking "closing" and "circulation" sign.
The ball groove 31 has been seted up to the inboard of control valve body 3, and air inlet 32 has been seted up to the left and right sides symmetry of control valve body 3, and air outlet 33 has been seted up to the side of control valve body 3, and seal groove 34 has been seted up to the left and right sides symmetry of control valve body 3, and limit groove 36 has been seted up to the upper end of control valve body 3, and the left and right sides symmetry of control valve body 3 is provided with slow flow mechanism, and slow flow mechanism is including: protection tube 4, slow flow pipe 41, slow flow board 42, slow flow baffle 43 and external screw thread cover 44, control valve body 3's left and right sides symmetry is provided with protection tube 4, and bolt and control valve body 3 fixed connection are passed through to the one end of protection tube 4, and the other end of two protection tubes 4 all is connected with the connecting pipe through the bolt, and the connecting pipe is the kink pipe, and one of them connecting pipe passes through bolt and first adsorption tower main part 21 fixed connection, and another connecting pipe passes through bolt and second adsorption tower main part 23 fixed connection, and slow flow pipe 41 is pegged graft with protection tube 4.
The inner chamber of protection tube 4 is provided with slow flow pipe 41, slow flow pipe 41's inner chamber welding has slow flow board 42, slow flow baffle 43 has been welded to slow flow pipe 41's both ends symmetry, the side welding of one of them slow flow baffle 43 has external screw thread cover 44, slow flow board 42 is the bending plate, the through-hole has been seted up into the circumference array for the side of a circular plate to slow flow baffle 43, the internal thread has been seted up to protection tube 4's inner chamber, external screw thread cover 44 and protection tube 4 threaded connection, oxygen flows along protection tube 4, the effect of slow flow is played to oxygen through slow flow pipe 41 that sets up to slow flow board 42 and slow flow baffle 43, thereby can prevent the direct impact adjustment mechanism of air current, thereby protect the valve of oxygenerator.
One end of the protection tube 4 in the slow flow mechanism is provided with a sealing mechanism, and the sealing mechanism comprises: the sealing gasket 35, the annular sealing plate 45 and the annular groove 46, the sealing groove 34 is sleeved with the sealing gasket 35, the annular sealing plate 45 is welded on the side face of the protection pipe 4, the annular groove 46 is formed on the side face of the annular sealing plate 45, the annular sealing plate 45 is inserted into the sealing groove 34, the end portion of the annular sealing plate 45 is in contact with the sealing gasket 35, the sealing gasket 35 is clamped with the annular groove 46, and when the protection pipe 4 is connected with the control valve body 3, the sealing gasket 35 is extruded under the cooperation of the annular sealing plate 45 and the sealing groove 34, so that the protection pipe 4 is in sealing connection with the control valve body 3.
The side of the control valve body 3 is provided with a backflow prevention mechanism which comprises: the anti-backflow pipe 5, the chute 51, the fixed support 52, the sealing block 6, the limiting block 61, the limiting rod 62 and the limiting spring 63, the anti-backflow pipe 5 is welded on the side face of the control valve body 3, the chute 51 is symmetrically arranged on the left side and the right side of the inner cavity of the anti-backflow pipe 5, the fixed support 52 is welded on the inner cavity of the anti-backflow pipe 5, a round hole is arranged on the side face of the fixed support 52, the sealing block 6 is clamped on the inner cavity of the anti-backflow pipe 5, the limiting block 61 is symmetrically welded on the cylindrical face of the sealing block 6, the limiting rod 62 is welded on the side face of the sealing block 6, the limiting spring 63 is sleeved on the limiting rod 62 and is in sliding connection with the fixed support 52, one end of the limiting rod 62 penetrates through the round hole and is welded with the fixed round block, one end of the limiting spring 63 is spliced with the fixed support 52, the other end of the limiting spring 63 is spliced with the sealing block 6, the limiting spring 63 is applied to the sealing block 6 to be elastic force, and when the sealing block 6 moves. The sealing block 6 drives the limiting block 61 to slide along the sliding groove 51, so that the sealing block 6 can stably move.
The inboard of control valve body 3 is provided with adjustment mechanism, and adjustment mechanism is including: the anti-leakage device comprises a spherical plug 7, an L-shaped launder 71, an anti-leakage ring 72, a rotating shaft 73, an annular fixed block 74, a positioning groove 75, an adjusting knob 76 and an indicating arrow 77, wherein the spherical plug 7 is rotatably connected in the spherical groove 31 through a pin shaft, the L-shaped launder 71 is arranged on the side surface of the spherical plug 7, the anti-leakage ring 72 is sleeved on the spherical plug 7 and is in sliding connection with the anti-leakage ring 72, the anti-leakage ring 72 is adhered to the spherical groove 31, the rotating shaft 73 is welded at the upper end of the spherical plug 7, the rotating shaft 73 is rotatably connected with a control valve body 3, the annular fixed block 74 is welded on the rotating shaft 73, the annular fixed block 74 is rotatably connected with the control valve body 3, the side surface of the annular fixed block 74 is provided with four positioning grooves 75 in a circumferential array, the upper end of the rotating shaft 73 passes through the control valve body 3 and is welded with the adjusting knob 76, the upper end of the adjusting knob 76 is welded with two indicating arrows 77, the two indicating arrows 77 are arranged in a ninety-degree included angle, one end of the L-shaped launder 71 is communicated with an air inlet 32, the other end of the L-shaped launder 71 is communicated with an air outlet 33, and the anti-leakage ring 72 is hermetically connected between the spherical plug 7 and the control valve body 3 through the arranged anti-leakage ring 72.
A positioning mechanism is arranged in the limit groove 36, and the positioning mechanism comprises: the side of the control valve body 3 is inserted with an adjusting rod 8, the adjusting rod 8 is in sliding connection with the control valve body 3, the adjusting rod 8 is sleeved with a positioning spring 81, one end of the adjusting rod 8 is welded with a positioning block 82, the positioning block 82 is in sliding connection with the limiting groove 36, one end of the positioning block 82 penetrates through the control valve body 3 to be clamped with the positioning groove 75, and the positioning spring 81 applies elasticity to the positioning block 82.
When the oxygenerator works normally, the air compressor 11 sucks air through the air inlet pipe 15 and compresses the air, the air flows through the filtering device and the adsorption tower to manufacture oxygen after being processed by the oxygenerator, the first control valve 13 and the second control valve 14 are both in an open state during normal operation, when a path for oxygen manufacture needs to be regulated, the regulating knob 76 is rotated, the regulating knob 76 drives the spherical plug 7 to rotate, the spherical plug 7 drives the L-shaped launder 71 to rotate, when one of two indication arrows 77 of the regulating knob 76 in the regulating mechanism points to circulation, and the other indicates to the sign of the numeral 1, at the moment, the air is manufactured into oxygen through the first filtering device 2 and the first adsorption tower body 21, when one of the two indication arrows 77 in the regulating mechanism points to circulation, and the other indicates to the sign of the numeral 2, at the moment, the air is manufactured into oxygen through the second filtering device 22 and the second adsorption tower body 23, and when one indication arrow 77 on the regulating knob 76 in the regulating mechanism points to close, namely the oxygenerator stops supplying oxygen. In the working process of the oxygenerator, oxygen passes through the slow flow mechanism, flows along the protection pipe 4, and has the slow flow effect on the oxygen through the slow flow pipe 41, the slow flow plate 42 and the slow flow baffle plate 43, so that the air flow can be prevented from directly impacting the regulating mechanism, and the valve of the oxygenerator is protected; when the oxygenerator normally supplies oxygen, the oxygen flows out along the air outlet 33 of the control valve body 3, the oxygen flows into the backflow preventing pipe 5 through the air outlet 33 to pinch, and meanwhile, the oxygen pushes the sealing block 6 to be separated from the backflow preventing pipe 5, so that an interval is formed between the sealing block 6 and the backflow preventing pipe 5, the sealing block 6 extrudes the limit spring 63, meanwhile, the oxygen normally circulates along the interval between the sealing block 6 and the backflow preventing pipe 5, and oxygen is introduced into the air storage tank, when the oxygenerator stops working, the sealing block 6 is in sealing connection with the backflow preventing pipe 5 under the elastic force of the limit spring 63, and therefore, the oxygen backflow can be effectively prevented, and components inside the oxygenerator are damaged.
When the first filter device 2 and the first adsorption tower main body 21 of the oxygen generating assembly in the oxygenerator are required to be replaced or cleaned, the positioning block 82 and the positioning groove 75 in the positioning mechanism are separated, the adjusting knob 76 is rotated at the moment, one of two indication arrows 77 of the adjusting knob 76 points to circulation, and the other points to the sign of the number 2, so that air is made into oxygen through the second filter device 22 and the second adsorption tower main body 23, and meanwhile, the first control valve 13 at the lower end of the first filter device 2 is closed, and at the moment, the first filter device 2 and the first adsorption tower main body 21 can be replaced or cleaned conveniently; when the second filter device 22 and the second adsorption tower body 23 of the oxygen generating assembly in the oxygenerator are required to be replaced or cleaned, the adjusting knob 76 is rotated at the moment, so that one of two indication arrows 77 of the adjusting knob 76 points to circulation, and the other one points to the sign of the numeral 1, thereby enabling air to support oxygen through the first filter device 2 and the first adsorption tower body 21, and simultaneously closing the second control valve 14 at the lower end of the second filter device 22, and the second filter device 22 and the second adsorption tower body 23 can be conveniently replaced or cleaned at the moment, thereby conveniently replacing or cleaning the filter device and the adsorption tower.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a medical oxygen generator based on valve design slow flow subassembly, includes oxygen generation case (1) and air compressor (11), air compressor (11) are installed through the support frame and are made the inner chamber of oxygen case (1), its characterized in that: the air inlet end of the air compressor (11) is connected with an air inlet pipe (15) through a pipe joint, the air outlet end of the air compressor (11) is connected with a shunt pipe (12) through a pipe joint, a first control valve (13) and a second control valve (14) are arranged on the left side and the right side of the shunt pipe (12), an oxygen generating component is arranged on the shunt pipe (12), a control valve body (3) is welded at the upper end of the oxygen generating box (1), a spherical groove (31) is formed in the inner side of the control valve body (3), an air inlet (32) is symmetrically formed in the left side and the right side of the control valve body (3), an air outlet (33) is formed in the side surface of the control valve body (3), sealing grooves (34) are symmetrically formed in the left side and the right side of the control valve body (3), limiting grooves (36) are formed in the upper end of the control valve body (3), flow slowing mechanisms are symmetrically arranged on the left side and the right side of the control valve body (3), one end of a protection pipe (4) is provided with a sealing mechanism, the side of the control valve body (3) is provided with an inner limiting mechanism, and the inner side positioning mechanism (36) is arranged in the valve body;
the oxygen generating assembly comprises: the device comprises a first filter device (2), a first adsorption tower main body (21), a second filter device (22) and a second adsorption tower main body (23), wherein the left end and the right end of a shunt pipe (12) are connected with the first filter device (2) and the second filter device (22) through bolts;
the slow flow mechanism comprises: protection tube (4), slow flow pipe (41), slow flow board (42), slow flow baffle (43) and external screw thread cover (44), the left and right sides symmetry of control valve body (3) is provided with protection tube (4), the inner chamber of protection tube (4) is provided with slow flow pipe (41), slow flow board (42) have been welded to the inner chamber of slow flow pipe (41), slow flow baffle (43) have been welded to the both ends symmetry of slow flow pipe (41), and external screw thread cover (44) have been welded to the side of one of them slow flow baffle (43), slow flow board (42) are the bent plate;
the backflow prevention mechanism comprises: the anti-backflow pipe is characterized by comprising an anti-backflow pipe (5), a sliding groove (51), a fixed support (52), a sealing block (6), a limiting block (61), a limiting rod (62) and a limiting spring (63), wherein the anti-backflow pipe (5) is welded on the side face of the control valve body (3), the sliding groove (51) is symmetrically arranged in the inner cavity of the anti-backflow pipe (5), the fixed support (52) is welded in the inner cavity of the anti-backflow pipe (5), a round hole is formed in the side face of the fixed support (52), the sealing block (6) is clamped in the inner cavity of the anti-backflow pipe (5), the limiting block (61) is symmetrically welded on the cylindrical face of the sealing block (6), the limiting rod (62) is welded on the side face of the sealing block (6), the limiting spring (63) is sleeved on the limiting rod (62), the limiting rod (62) is in sliding connection with the fixed support (52), and one end of the limiting rod (62) penetrates through the round hole to be welded with the fixed round block.
The adjusting mechanism comprises: the anti-leakage device comprises a spherical plug (7), an L-shaped launder (71), an anti-leakage ring (72), a rotating shaft (73), an annular fixed block (74), a positioning groove (75), an adjusting knob (76) and an indication arrow (77), wherein the spherical plug (7) is rotationally connected in the spherical groove (31) through a pin shaft, the L-shaped launder (71) is arranged on the side surface of the spherical plug (7), the anti-leakage ring (72) is sleeved on the spherical plug (7), the spherical plug (7) is in sliding connection with the anti-leakage ring (72), the anti-leakage ring (72) is bonded with the spherical groove (31), the rotating shaft (73) is welded at the upper end of the spherical plug (7), the rotating shaft (73) is rotationally connected with the control valve body (3), the annular fixed block (74) is welded on the rotating shaft (73), the side surface of the annular fixed block (74) is provided with four positioning grooves (75), the upper end of the rotating shaft (73) penetrates through the control valve body (3) and the adjusting knob (72), and two indication arrows (77) are welded at the upper ends of the adjusting knob (77) to form an indication angle;
the positioning mechanism comprises: the device comprises an adjusting rod (8), a positioning spring (81) and a positioning block (82), wherein the side face of the control valve body (3) is inserted with the adjusting rod (8), the adjusting rod (8) is in sliding connection with the control valve body (3), the positioning spring (81) is sleeved on the adjusting rod (8), the positioning block (82) is welded at one end of the adjusting rod (8), the positioning block (82) is in sliding connection with the limiting groove (36), and one end of the positioning block (82) penetrates through the control valve body (3) to be clamped with the positioning groove (75);
when the oxygen generating component in the oxygenerator needs to be replaced or cleaned, the positioning block (82) in the positioning mechanism is separated from the positioning groove (75), the adjusting knob (76) is rotated at the moment, the adjusting knob (76) drives the spherical plug (7) to rotate through the rotating shaft (73), so that the oxygen generating path is replaced, when the oxygen generating component needs to be replaced, the control valve corresponding to the lower end of the filtering device and the lower end of the adsorption tower are closed, the filtering device and the adsorption tower can be replaced or cleaned conveniently, and the oxygenerator does not need to be stopped in the replacement or cleaning process.
2. The medical oxygen generator based on valve design slow flow assembly of claim 1, wherein: the upper end of the first filtering device (2) is connected with a first adsorption tower main body (21) through a bolt, and the upper end of the second filtering device (22) is connected with a second adsorption tower main body (23) through a bolt.
3. The medical oxygen generator based on valve design slow flow assembly of claim 1, wherein: the upper end bilateral symmetry welding of control valve body (3) has the connection sign, the upper end front and back symmetry welding of control valve body (3) has the switch sign.
4. The medical oxygen generator based on valve design slow flow assembly of claim 1, wherein: one end of each protection tube (4) is fixedly connected with the control valve body (3) through a bolt, the other ends of the two protection tubes (4) are connected with connecting tubes through bolts, the connecting tubes are bending tubes, one connecting tube is fixedly connected with the first adsorption tower body (21) through a bolt, and the other connecting tube is fixedly connected with the second adsorption tower body (23) through a bolt.
5. The medical oxygen generator based on valve design slow flow assembly of claim 1, wherein: the slow flow baffle (43) is formed by arranging through holes in a circumferential array on the side surface of a circular plate, an inner thread is arranged in the inner cavity of the protection tube (4), and the outer thread sleeve (44) is in threaded connection with the protection tube (4).
6. The medical oxygen generator based on valve design slow flow assembly of claim 1, wherein: the sealing mechanism comprises: sealing gasket (35), annular sealing plate (45) and ring channel (46), sealing gasket (35) are equipped with to seal groove (34) endotheca, the side welding of protection tube (4) has annular sealing plate (45), ring channel (46) have been seted up to the side of annular sealing plate (45), annular sealing plate (45) are pegged graft with sealing groove (34), the tip and the sealing gasket (35) contact of annular sealing plate (45), sealing gasket (35) and ring channel (46) joint.
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