Medical molecular sieve oxygen generator
By using a purely mechanical humidification mechanism to dynamically adjust the oxygen flow path, the problem of humidification mismatch in existing medical molecular sieve oxygen generators has been solved, achieving precise matching between humidification effect and flow rate, thus improving the safety and comfort of oxygen therapy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- KEER (SUZHOU) MEDICAL TECH CO LTD
- Filing Date
- 2026-04-27
- Publication Date
- 2026-05-29
AI Technical Summary
The humidification level of existing medical molecular sieve oxygen generators cannot be adaptively adjusted, resulting in over-humidification at low flow rates or insufficient humidification at high flow rates, which affects the comfort and safety of oxygen therapy.
The humidification mechanism, which adopts a purely mechanical structure, dynamically adjusts the flow path of oxygen in the humidification bottle through the linkage of the adjustment components and the venturi tube, ensuring that the humidification effect matches the oxygen production flow rate. This includes the design of the adjustment plate and the reset unit, which enables adaptive adjustment of the humidification degree.
It achieves a precise match between humidification effect and oxygen production flow rate, avoiding the problems of excessive humidification at low flow rates and insufficient humidification at high flow rates, improving the safety and comfort of oxygen therapy, reducing maintenance costs, and adapting to diverse clinical needs.
Smart Images
Figure CN122097783A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of oxygen generation technology, and more particularly to a medical molecular sieve oxygen generator. Background Technology
[0002] Medical molecular sieve oxygen generators are widely used in hospitals and home oxygen therapy settings. During use, they typically require a humidification device to moisten the output oxygen, preventing dry oxygen from irritating the patient's respiratory mucosa. Currently, most conventional humidification devices use a direct-bubble structure, where oxygen is directly introduced into a humidification bottle containing purified water, and simple humidification is achieved through rising air bubbles.
[0003] This traditional structure has significant drawbacks: the oxygen flow path in water remains fixed, and the degree of humidification cannot be adaptively adjusted according to the oxygen production flow rate. When the oxygen concentrator is at a low flow rate, the oxygen stays in the water for a longer time, which can easily lead to problems such as over-humidification, increased condensation, bubble splashing, and coughing. When the oxygen concentrator is at a high flow rate, the oxygen flow rate is fast and the contact time with water is short, which can easily cause insufficient humidification and dryness. Long-term use can easily lead to dry mouth, sore throat, and airway mucosal damage in patients, making it difficult to meet the comfort and safety requirements of clinical oxygen therapy.
[0004] While some humidification devices employ a Venturi structure for atomization and humidification, they suffer from problems such as insufficient negative pressure at low flow rates, excessive atomization at high flow rates, high noise levels, and poor stability. Furthermore, many lack reliable flow threshold triggering and automatic reset mechanisms, making them prone to adjustment lag or malfunction. Simultaneously, existing devices generally lack optimized airflow path design, resulting in insufficient gas-liquid contact and poor humidification uniformity, impacting the oxygen generator's lifespan and operational safety.
[0005] Therefore, developing a humidification mechanism for medical molecular sieve oxygen generators that can adaptively adjust the degree of humidification with the flow rate, has a simple and reliable structure, provides sufficient humidification, and is highly safe has become an urgent technical problem to be solved in this field. Summary of the Invention
[0006] In view of the existing technical problems, such as the fixed path of the humidification device in medical molecular sieve oxygen generators, the mismatch between humidification effect and flow rate, and the tendency to over-humidify or under-humidify, a medical molecular sieve oxygen generator is proposed.
[0007] Its purpose is to provide a device with a simple and reliable structure and adaptively adjustable humidification effect, solving the pain points of existing humidification devices such as mismatch between oxygen production flow rate, uneven humidification, and complicated operation; and to achieve dynamic adjustment of humidification degree with oxygen production flow rate through a purely mechanical structure, avoiding the problems of excessive humidification at low flow rates and insufficient humidification at high flow rates, thereby improving the safety and comfort of oxygen therapy, adapting to the clinical use needs of medical molecular sieve oxygen concentrators, and meeting the diverse scenarios of oxygen therapy in hospitals and homes.
[0008] The technical solution of the present invention is a medical molecular sieve oxygen generator, including a housing, an oxygen generating mechanism disposed inside the housing, and a humidification mechanism disposed at the top back of the housing; The humidification mechanism includes a humidification bottle disposed on the housing, a humidification unit disposed inside the humidification bottle, and a reset unit disposed inside the humidification unit; The humidification unit includes a humidification component and an adjustment component disposed on the humidification bottle. The humidification component includes an air inlet pipe disposed on the housing, a Venturi tube disposed at one end of the air inlet pipe, and an air outlet pipe assembly disposed on one side of the bottom of the Venturi tube. The air outlet pipe assembly is disposed at the inner bottom of the humidification bottle, and the humidification bottle is filled with pure water. The regulating component is used to change and regulate the flow path of oxygen in the humidification bottle, including a connecting pipe disposed on one side of the venturi tube, an regulating rod disposed on one side of the connecting pipe, one end of the regulating rod being rotatably connected inside the humidification bottle, and several regulating plates arranged in a linear array on the regulating rod.
[0009] Furthermore, the two ends of the venturi tube are tapered, and the middle part is connected by a constricted column section, with the connecting pipe connected to the constricted column section.
[0010] Furthermore, the adjustment assembly also includes a piston block disposed inside the connecting pipe, a drive rod disposed on one side of the piston block, a spiral guide groove opened on the side wall of the drive rod, a protrusion disposed in the spiral guide groove and disposed on the inner wall of the connecting pipe, and two sliding blocks symmetrically disposed at the end of the drive rod, corresponding to the sliding grooves opened in the adjustment rod, and the sliding blocks slidingly connected in the sliding grooves.
[0011] Furthermore, the adjusting rod is cross-shaped, and several adjusting plates are vertically parallel to each other on the adjusting rod. The adjusting plates are elliptical and have continuous corrugations on them.
[0012] Furthermore, the reset unit includes a reset groove formed inside the connecting pipe, a reset spring disposed in the reset groove, a reset plate disposed on one side of the reset spring, and the reset plate and the drive rod are fixedly connected.
[0013] Furthermore, the air outlet assembly includes a circular tube arranged in a ring-shaped circumferential array, and a plurality of air outlet holes linearly arranged at the bottom of the circular tube.
[0014] Furthermore, the purified water in the humidification bottle is submerged up to the top of the regulating plate.
[0015] Furthermore, the width of the several adjustment plates distributed from the center to both sides gradually narrows.
[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. It is highly adaptable and has high humidification efficiency. Through the combination of the ring-shaped air outlet pipe and the multi-layer adjustment plate, oxygen is evenly dispersed. Combined with the bottom air outlet design, it not only avoids airflow short-circuiting, but also allows oxygen to fully contact the water layer through reasonable water level setting, so as to achieve efficient oxygen humidification, while reducing airflow resistance and ensuring the stability of medical oxygen supply.
[0017] 2. No complex electronic control equipment is required. Humidity adjustment is achieved through a purely mechanical structure. The spiral guide groove and lightweight design prevent disordered adjustment, reduce maintenance costs, adapt to long-term continuous oxygen therapy scenarios, and improve ease of use.
[0018] 3. Achieve precise matching between humidification effect and oxygen production flow rate. Through mechanical linkage and path optimization, it not only solves the pain points of traditional humidification devices, but also takes into account the humidification stability under different flow rates. At the same time, the water-blocking backflow design ensures the safe operation of the equipment and adapts to the diverse clinical needs. Attached Figure Description
[0019] Figure 1 This is a frontal perspective view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall rear three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the humidification mechanism of the present invention; Figure 4 This is a schematic diagram of the internal structure of the humidification mechanism of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the overall structure of the air outlet pipe assembly of the present invention; Figure 7 This is an exploded structural diagram of the adjustment component of the present invention; Figure 8 This is a cross-sectional view of the adjustment component of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B; Figure 10 This is a schematic side view of the overall structure of the several adjustment plates of the present invention; Figure 11 This is a schematic diagram of the overall front view of the several adjustment plates of the present invention.
[0020] In the picture: 1. Shell; 11. Humidification bottle; 2. Humidification assembly; 21. Inlet pipe; 22. Venturi tube; 3. Adjustment assembly; 31. Connecting pipe; 32. Adjusting rod; 33. Adjusting plate; 34. Piston block; 35. Drive rod; 36. Spiral guide groove; 37. Protrusion; 38. Sliding block; 39. Sliding groove; 4. Narrowed column section; 5. Reset unit; 51. Reset groove; 52. Reset spring; 53. Reset plate; 6. Round tube; 7. Air outlet. Detailed Implementation
[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0022] Example 1, referring to Figures 1-11 This invention provides a medical molecular sieve oxygen generator, comprising a housing 1, an oxygen generating mechanism disposed inside the housing 1, and a humidification mechanism disposed at the top back of the housing 1. The humidification mechanism includes a humidification bottle 11 mounted on the housing 1, a humidification unit disposed inside the humidification bottle 11, and a reset unit 5 disposed inside the humidification unit. The humidification unit includes a humidification component 2 and an adjustment component 3 disposed on the humidification bottle 11. The humidification component 2 includes an air inlet pipe 21 mounted on the housing 1 and inserted into the air inlet pipe. The Venturi tube 22 at one end of 21 is fixedly connected to the gas outlet pipe assembly on one side of the bottom of the Venturi tube 22. The gas outlet pipe assembly is located at the inner bottom of the humidification bottle 11, which is filled with pure water. The regulating component 3 is used to change and regulate the flow path of oxygen in the humidification bottle 11. It includes a connecting pipe 31 fixedly connected to one side of the Venturi tube 22, an regulating rod 32 rotatably connected to one side of the connecting pipe 31, one end of the regulating rod 32 rotatably connected inside the humidification bottle 11, and several linearly arrayed regulating plates 33 fixedly connected to the regulating rod 32.
[0023] Specifically, in medical molecular sieve oxygen concentrators, the oxygen flow rate is slow at low flow rates, allowing sufficient contact time with water, and a short path is sufficient to meet humidification requirements. However, when the oxygen flow rate increases and reaches a threshold, the oxygen flow rate accelerates. If the path remains unchanged, insufficient humidification and dry oxygen will occur, failing to meet the humidification needs of patients receiving high-flow oxygen therapy. Therefore, this application sets a threshold. When this flow rate is reached, the tilting of the regulating plate 33 increases the oxygen flow path in the water, prolonging the contact time and improving the degree of humidification. This ensures that the humidification effect matches the oxygen flow rate, guaranteeing the provision of suitable and safe humidified oxygen at different flow rates. During oxygen generation, oxygen is generated through the internal oxygen generation mechanism (existing technology). Oxygen enters from the inlet pipe 21 into the venturi tube 22, and then from the outlet pipe group into the bottom of the humidification bottle 11. After being humidified by the purified water in the humidification bottle 11, the oxygen is discharged from the top of the humidification bottle 11. When the oxygen generation rate does not reach a certain threshold, several regulating plates 33 are vertically distributed, and oxygen is discharged upwards along the central gap of the regulating plate 33. When the oxygen production rate reaches a certain threshold, a large negative pressure is formed at the connecting pipe 31 under the action of the Venturi effect, causing the regulating component 3 to rotate, thereby driving the connecting pipe 31 and the regulating plate 33 to rotate. This causes several regulating plates 33 to rotate into an inclined position within the humidification bottle 11, which in turn causes the oxygen discharged from the outlet pipe group to flow upward along the gaps between the several inclined regulating plates 33, increasing the flow path of oxygen in the water, thereby prolonging the contact time between oxygen and pure water, and thus improving the humidification degree of oxygen.
[0024] This invention is compatible with the clinically standard oxygen production rate range of 1-10 L / min for medical molecular sieve oxygen concentrators, especially for the commonly used operating range of 2-5 L / min. It achieves dynamic adjustment of humidification effect. When the oxygen production rate does not reach the threshold, the adjustment plate 33 is vertically distributed, and oxygen rises rapidly along the gap in the middle of the adjustment plate 33. The reset unit 5 can drive the adjustment plate 33 to automatically reset to the vertical state, realizing reverse adaptive adjustment of humidification effect without manual intervention. This reduces the operational burden on medical staff and patients, improves ease of use, avoids condensation and water droplet splashing in the pipeline caused by excessive humidification at low flow rates, prevents problems such as choking and airway discomfort, and ensures the safety of use for patients with mild symptoms and patients undergoing long-term home oxygen therapy. When the oxygen production rate reaches the set threshold (adapted to the needs of high-flow medical oxygen therapy), the negative pressure generated by the Venturi tube 22 drives the adjustment component 3 to rotate, and the adjustment plate 33 tilts, significantly extending the flow path of oxygen in the pure water and increasing the contact time between oxygen and pure water. This effectively solves the industry pain point of insufficient humidification under high flow rates, avoids dry oxygen irritating the respiratory mucosa, and reduces the risk of complications such as airway damage and coughing, meeting the clinical standard of "mild humidification and flow rate adaptation" for medical oxygen therapy.
[0025] The regulating plates 33 are arranged in a linear array, ensuring uniform oxygen dispersion regardless of whether the device is vertical or tilted. This avoids the problems of uneven bubble size and humidification common in traditional bubble humidifiers, ensuring stable oxygen output humidity that meets the physiological needs of the human respiratory tract and makes long-term oxygen therapy more comfortable. Compared to traditional Venturi nebulizers, this design eliminates the need for humidification through atomization. Instead, it achieves gentle humidification by extending the gas-liquid contact path, avoiding the coughing and airway irritation caused by excessively large atomized particles. It also avoids the high-frequency noise generated during nebulization. Combined with the bubble diversion effect of the regulating plates 33, it effectively reduces the "gurgling" sound produced by oxygen bubbling, making it especially suitable for nighttime oxygen therapy and minimizing disruption to the patient's rest. The oxygen flows along the gaps in the regulating plates 33, effectively reducing bubble splashing and preventing water droplets from entering the oxygen tubing. This prevents tubing blockage and reduces the risk of respiratory infections, further enhancing the safety of medical oxygen therapy. By linking the Venturi tube 22 with the mechanical adjustment component 3, the negative pressure generated by the Venturi effect drives the adjustment plate 33 to rotate, thereby realizing the dynamic change of the humidification path. This is different from the existing fixed-path humidifiers and electrically controlled humidifiers, and solves the contradiction of "poor humidification adaptability" and "complex structure" in the existing technology.
[0026] The conventional oxygen generation rate of medical molecular sieve oxygen generators is 1–5 L / min, with a commonly used clinical range of 2–5 L / min. The structural dimensions of the venturi tube 22 in this application are matched to this flow range. By rationally setting the throat diameter of the venturi tube 22, the adjusting components 3, adjusting rod 32, and adjusting plate 33 are all made of medical-grade lightweight plastic, resulting in low rotational resistance. Under threshold negative pressure, it can drive deflection, extending the oxygen flow path in the water and improving the humidification effect.
[0027] Reference Figures 1-4 The two ends of the Venturi tube 22 are tapered, and the middle part is connected by a constricted column section 4. The connecting tube 31 is connected to the constricted column section 4.
[0028] Specifically, the Venturi tube 22 adopts a conical structure at both ends and a constricted column section 4 in the middle, which can significantly increase the flow rate and drastically reduce the pressure of oxygen when it flows through the middle section. A stable and sufficiently strong negative pressure is formed at the constricted column section 4, which ensures that the regulating component 3 can be reliably driven under the conventional oxygen production flow rate of the medical molecular sieve oxygen generator. The negative pressure generation effect is obvious and the response is rapid.
[0029] Example 2, refer to Figures 4-9This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the adjusting component 3 further includes a piston block 34 that is slidably connected inside the connecting pipe 31, a drive rod 35 that is rotatably connected to one side of the piston block 34, a spiral guide groove 36 that is opened on the side wall of the drive rod 35, a protrusion 37 that is slidably connected in the spiral guide groove 36 and fixedly connected to the inner wall of the connecting pipe 31, and two sliding blocks 38 that are symmetrically fixedly connected to the end of the drive rod 35, corresponding to the sliding grooves 39 opened in the adjusting rod 32, and the sliding blocks 38 are slidably connected in the sliding grooves 39.
[0030] Specifically, when the constricted section 4 of the venturi tube 22 generates a threshold negative pressure, the piston block 34 is pulled to one side, causing the drive rod 35 to move synchronously. Since the protrusion 37 slides within the spiral guide groove 36, when the drive rod 35 moves, the protrusion 37 drives the drive rod 35 to rotate. The sliding block 38 on one side of the drive rod 35 slides within the sliding groove 39 and synchronously drives the adjusting rod 32 to rotate, thereby causing several adjusting plates 33 to tilt and rotate. The helix angle of the spiral guide groove 36 matches the axial stroke, ensuring that when the drive rod 35 moves axially under negative pressure, it only drives the adjusting rod 32 to rotate at an angle not exceeding 45°. This allows the adjusting plates 33 to tilt from a vertical position within the humidification bottle 11 to a suitable angle to match the diameter of the humidification bottle 11.
[0031] By utilizing the helical guide groove 36 on the drive rod 35 in conjunction with the protrusion 37 on the inner wall of the connecting pipe 31, the linear motion of the drive rod 35 can be precisely converted into rotational motion. The transmission structure is simple and compact, requiring no complex components such as motors and gears, resulting in a low failure rate and high safety, making it particularly suitable for medical equipment. The guiding effect of the helical guide groove 36 ensures a stable correspondence between the rotation angle of the adjusting rod 32 and the magnitude of negative pressure and flow rate, allowing the tilt angle of the adjusting plate 33 to change smoothly with the oxygen flow rate. This ensures continuous and uniform adjustment of the humidification level, avoiding abrupt changes or fluctuations, further improving the comfort and safety of oxygen therapy.
[0032] Reference Figure 6 and Figures 10-11 The adjusting rod 32 is cross-shaped, and several adjusting plates 33 are vertically parallel on the adjusting rod 32. The adjusting plates 33 are elliptical and have continuous corrugations.
[0033] Specifically, the adjusting rod 32 adopts a cross-shaped structure, which ensures uniform force distribution and stable rotation. Under negative pressure, it is not prone to swaying or jamming, and can reliably drive multiple adjusting plates 33 to deflect synchronously, ensuring consistent humidification path adjustment. Several adjusting plates 33 are vertically parallel, which can evenly divide the oxygen flow into multiple fine streams, increasing the contact area between oxygen and purified water, improving humidification uniformity, and suppressing the generation of large bubbles, reducing bubbling noise and splashing. Furthermore, the adjusting plates 33 are equipped with continuous corrugations, which further disturb the airflow and extend the actual flow path as oxygen rises along the plate, allowing for more thorough contact between oxygen and water, further improving the humidification effect at the same deflection angle. Simultaneously, the corrugated structure can break up bubbles, reduce airflow noise, and improve patient oxygenation comfort. The remaining structure is the same as in Example 1.
[0034] Example 3, referring to Figure 7 and Figure 9 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the reset unit 5 includes a reset groove 51 opened inside the connecting tube 31, a reset spring 52 abutting in the reset groove 51, a reset plate 53 abutting on one side of the reset spring 52, and the reset plate 53 and the drive rod 35 are fixedly connected.
[0035] Specifically, the combination of a return spring 52 and a return plate 53 enables the drive rod 35 to be automatically and reliably reset when the oxygen flow rate decreases and the negative pressure drops below the threshold. This allows the adjusting plate 33 to smoothly return from an inclined state to a vertical state without manual intervention, resulting in a high degree of automation. The return spring 52 has a preload in its initial state. When the negative pressure generated by the venturi tube 22 does not overcome the preload of the return spring 52, the drive rod 35 remains stationary, and the adjusting plate 33 remains vertical. When the flow rate rises to the threshold and the negative pressure overcomes the preload of the return spring 52, the spring is compressed, the drive rod 35 moves, and the adjusting plate 33 rotates, extending the humidification path. The preload of the return spring 52 ensures that the entire adjusting mechanism has a clear flow trigger threshold, preventing malfunctions at low flow rates and guaranteeing accurate and reliable adjustment.
[0036] Reference Figure 6 The vent pipe assembly includes a circular tube 6 arranged in a ring-shaped circumferential array, and several vent holes 7 linearly arranged at the bottom of the circular tube 6. A water-blocking and air-permeable component is provided at the opening of the circular tube 6 located at the Venturi tube 22. The water-blocking and air-permeable component is a hydrophobic microporous breathable membrane or a one-way valve. The hydrophobic microporous breathable membrane is encapsulated at the end of the circular tube 6, allowing oxygen to pass through and preventing liquid water from flowing back in. The one-way valve is an umbrella valve or a duckbill valve, which opens to exhaust air under the action of airflow and automatically closes under the action of shutdown or water pressure to achieve isolation between the air path and water.
[0037] Specifically, the air outlet assembly uses a circular array of tubes 6 arranged in a ring shape, which can evenly distribute oxygen throughout the radial area at the bottom of the humidification bottle 11. This matches the distribution area of the multi-layer regulating plates 33 above, achieving uniform airflow across the entire area and avoiding excessive concentration of airflow in certain areas, thus ensuring more uniform and stable humidification. The air outlet 7 is located at the bottom of the tubes 6, allowing oxygen to flow steadily upward from the bottom of the water. Combined with the guiding effect of the regulating plates 33, the airflow can smoothly rise along the gaps in the plates, regardless of whether the regulating plates 33 are in a vertical or tilted state, without short-circuiting, deviating, or splashing, ensuring a reliable and effective humidification path.
[0038] Reference Figure 4 The purified water in the humidification bottle 11 is submerged up to the top of the regulating plate 33.
[0039] Specifically, the pure water level is submerged to the top of the regulating plate 33, which ensures that after the oxygen flows out of the outlet pipe group, it must pass through the water layer in the regulating plate 33 area before it can be discharged upwards, avoiding the situation of airflow short circuit and direct escape without humidification, and ensuring that the oxygen is completely and fully humidified.
[0040] Reference Figure 11 The width of the several adjustment plates 33 distributed from the middle to both sides gradually narrows.
[0041] Specifically, the width of the central regulating plate 33 is relatively large, which is adapted to the shape of the cavity inside the humidification bottle 11, which has a large central space and small side spaces. This avoids interference between the regulating plate 33 and the inner wall of the humidification bottle 11 during rotation, and enables sufficient diversion of mainstream oxygen, extending its path and enhancing humidification. The width of the side regulating plates 33 gradually narrows, ensuring that the airflow in the edge area participates in humidification evenly, while avoiding excessive local resistance due to the plates being too wide. This makes the airflow distribution in the entire humidification bottle 11 more balanced and the gas output more stable. The rest of the structure is the same as that in Example 2.
[0042] Based on embodiments 1-3, the working principle of this invention is as follows: The medical molecular sieve oxygen generator of this invention produces oxygen through an oxygen-generating mechanism. The oxygen enters the venturi tube 22 through the inlet pipe 21, where a negative pressure is formed in the middle constricted column section 4. The oxygen is then discharged through the bottom annular outlet pipe group into the purified water at the bottom of the humidification bottle 11 for humidification. When the oxygen flow rate is lower than the set threshold, the negative pressure generated by the venturi tube 22 is insufficient to overcome the preload of the return spring 52. The drive rod 35 remains in its initial position, the adjusting plate 33 is in a vertical state, and the oxygen rises rapidly along the gap in the middle of the adjusting plate 33, completing basic humidification through a shorter path and avoiding excessive humidification at low flow rates that could cause condensation and coughing. When the flow rate rises to the threshold, the negative pressure overcomes the preload of the reset spring 52, pushing the piston block 34 and drive rod 35 to move axially. The spiral guide groove 36 on the side wall of the drive rod 35 engages with the protrusion 37 on the inner wall of the connecting pipe 31, converting linear motion into circumferential rotation. This causes the adjusting rod 32 and adjusting plate 33 to tilt at a small angle, allowing oxygen to flow along the gaps in the tilted corrugated adjusting plate 33, significantly extending the gas-liquid contact path and time, improving humidification, and meeting the humidification requirements during high-flow oxygen intake. When the flow rate falls below the threshold, the reset spring 52 pushes the drive rod 35 back to its original position, and the adjusting plate 33 returns to its vertical state. The humidification path shortens simultaneously, achieving adaptive adjustment of humidification with flow rate. The water-blocking and air-permeable component at the bottom outlet pipe prevents backflow of pure water, ensuring safe operation of the equipment.
[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A medical molecular sieve oxygen generator, comprising a housing (1) and an oxygen generating mechanism disposed inside the housing (1), characterized in that, It also includes a humidification mechanism located at the top back of the housing (1); The humidification mechanism includes a humidification bottle (11) disposed on the housing (1), a humidification unit disposed inside the humidification bottle (11), and a reset unit (5) disposed inside the humidification unit. The humidification unit includes a humidification component (2) and an adjustment component (3) disposed on the humidification bottle (11). The humidification component (2) includes an air inlet pipe (21) disposed on the housing (1), a Venturi tube (22) disposed at one end of the air inlet pipe (21), and an air outlet pipe assembly disposed on one side of the bottom of the Venturi tube (22). The air outlet pipe assembly is disposed at the inner bottom of the humidification bottle (11), and the humidification bottle (11) is filled with pure water. The regulating component (3) is used to change and regulate the flow path of oxygen in the humidification bottle (11), including a connecting pipe (31) disposed on one side of the venturi tube (22), an regulating rod (32) disposed on one side of the connecting pipe (31), one end of the regulating rod (32) being rotatably connected in the humidification bottle (11), and a plurality of regulating plates (33) arranged in a linear array on the regulating rod (32).
2. The medical molecular sieve oxygen generator according to claim 1, characterized in that: The two ends of the Venturi tube (22) are conical, and the middle part is connected by a constricted column section (4), and the connecting pipe (31) is connected to the constricted column section (4).
3. The medical molecular sieve oxygen generator according to claim 1, characterized in that: The adjustment assembly (3) further includes a piston block (34) disposed inside the connecting pipe (31), a drive rod (35) disposed on one side of the piston block (34), a spiral guide groove (36) opened on the side wall of the drive rod (35), a protrusion (37) disposed in the spiral guide groove (36), and the protrusion (37) is disposed on the inner wall of the connecting pipe (31), and two sliding blocks (38) symmetrically disposed at the end of the drive rod (35), corresponding to the sliding groove (39) opened in the adjustment rod (32), and the sliding blocks (38) are slidably connected in the sliding groove (39).
4. The medical molecular sieve oxygen generator according to claim 1, characterized in that: The adjusting rod (32) is cross-shaped, and several adjusting plates (33) are vertically parallel on the adjusting rod (32). The adjusting plates (33) are elliptical and have continuous corrugations.
5. The medical molecular sieve oxygen generator according to claim 3, characterized in that: The reset unit (5) includes a reset groove (51) opened inside the connecting pipe (31), a reset spring (52) set in the reset groove (51), a reset plate (53) set on one side of the reset spring (52), and the reset plate (53) and the drive rod (35) are fixedly connected.
6. The medical molecular sieve oxygen generator according to claim 1, characterized in that: The air outlet pipe assembly includes a circular pipe (6) arranged in a ring-shaped circumferential array, and a number of air outlet holes (7) arranged in a linear array at the bottom of the circular pipe (6).
7. The medical molecular sieve oxygen generator according to claim 6, characterized in that: The purified water in the humidification bottle (11) is submerged up to the top of the regulating plate (33).
8. The medical molecular sieve oxygen generator according to claim 1, characterized in that: The width of the several adjustment plates (33) distributed from the middle to both sides gradually narrows.