An oxygen production device for continuous and stable oxygen production

Abstract

The present invention discloses an oxygen production device for continuous and stable oxygen production, comprising a main body, an oxygen outlet pipe, a humidifier bottle and an oxygen inhalation pipe. The inner compressor of the main body compresses the air and delivers it to a rubber sleeve through the compressor output pipe. The bottom of the rubber sleeve is connected to a plurality of molecular sieves, which are circular and distributed in an annular shape with the axis of the drive shaft as a circle. The top of each molecular sieve is provided with an opening and closing mechanism, which comprises a pipe mouth for air intake and a sealing cover that opens and closes along a spiral trajectory. The sealing cover is used to cover the port of the pipe mouth. A driving turntable for rotating and opening the sealing cover in sequence is installed on the drive shaft. The molecular sieve is connected to the oxygen storage bottle through a conduit, and the oxygen storage bottle is connected to the oxygen outlet pipe through the conduit. The opening and closing mechanism on the top of the molecular sieve is opened by rotation in turn, so that the plurality of opening and closing mechanisms work in turn, and the molecular sieves are used in turn mechanically, which has high stability and is convenient for maintenance and use.

Description

Technical Field

[0001] The present invention belongs to the technical field of oxygen concentrators, and in particular relates to an oxygen concentrator capable of continuously and stably producing oxygen. Background Art

[0002] Publication (Announcement) No. CN203048589U discloses an oxygen concentrator using three molecular sieve adsorption tanks, relating to the technical field of oxygen concentrator equipment. The invention addresses technical deficiencies in existing oxygen concentrators, such as poor oxygen output stability or incomplete desorption due to tight desorption time. The oxygen concentrator comprises three identically structured first, second, and third oxygen concentrator units. Each of the three oxygen concentrator units includes molecular sieve adsorption tanks (A, B, C), inlet valves (VA1, VB1, VC1), extraction valves (VA2, VB2, VC2), and outlet valves (VA3, VB3, VC3). The outlet ends of the outlet valves (VA3, VB3, VC3) of the three oxygen concentrator units are respectively connected to an outlet manifold (F1), while the exhaust ends of the extraction valves (VA2, VB2, VC2) of the three oxygen concentrator units are respectively connected to a vacuum pump (D1). The desorption time of each oxygen concentrator is longer than that of an oxygen concentrator using only two molecular sieve adsorption tanks, resulting in more thorough desorption.

[0003] Molecular sieve fatigue in oxygen concentrators is a problem closely linked to the concentrator's performance and service life. As a core component, the quality and performance of the molecular sieve directly impact the concentrator's efficiency and effectiveness. Molecular sieve fatigue can lead to a decrease in screening efficiency, impacting the concentrator's oxygen production and purity.

[0004] The main reasons for molecular sieve fatigue are as follows:

[0005] 1. Over time, the screening capacity of molecular sieves will gradually weaken, especially under continuous operation and high load conditions, the performance degradation will be more obvious.

[0006] 2. If the working environment of the oxygen concentrator is harsh, such as high temperature, high humidity or a large amount of impurities, these will have a negative impact on the performance of the molecular sieve and accelerate its fatigue process.

[0007] 3. Molecular sieves require regular replacement or regeneration to maintain their performance. If improperly maintained or neglected, the molecular sieve's sieving capacity will gradually decrease until it can no longer meet oxygen production needs.

[0008] Existing oxygen production equipment uses several molecular sieves to rotate for the preparation of oxygen to prevent molecular sieve fatigue. During the rotation process, valves are usually used to open and close the pipeline. As shown in CN203048589U, the equipment uses a monitoring algorithm and multiple valves to control the frequent opening of the valves, which leads to high costs and requires the cooperation of multiple equipment and components. In addition, the frequent start-up of valves controlled by the coordinated control of multiple equipment and components may also cause malfunction problems. There is no high stability of the mechanical structure, and it may even affect the life of the valves and equipment. For this reason, we propose an oxygen production device that can produce oxygen continuously and stably. Summary of the Invention

[0009] The object of the present invention is to provide an oxygen production device that can produce oxygen continuously and stably, so as to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an oxygen production device for continuous and stable oxygen production, comprising a main body, an oxygen outlet pipe, a humidifier bottle and an oxygen inhalation pipe, the oxygen outlet pipe of the main body being connected to the humidifier bottle through a conduit, the humidifier bottle humidifies the prepared oxygen, the output port of the humidifier bottle is connected to the oxygen inhalation pipe for use by the patient, the inner compressor of the main body compresses the air and delivers it to the rubber sleeve through the compressor output pipe, the bottom of the rubber sleeve is connected to a plurality of molecular sieves, the plurality of molecular sieves are circular and distributed in an annular shape with the axis of the drive shaft as a circle, the top of each molecular sieve is provided with an opening and closing mechanism, the opening and closing mechanism comprises a pipe mouth for air intake, a sealing cover that opens and closes along a spiral trajectory, the sealing cover is used to cover the port of the pipe mouth, a driving turntable for rotating and opening the sealing cover in sequence is installed on the driving shaft, the molecular sieve is connected to the oxygen storage bottle through the conduit, and the oxygen storage bottle is connected to the oxygen outlet pipe through the conduit.

[0011] By adopting the above technical solution, the present invention is further configured as follows: a downward pressing mechanism for driving the rubber sleeve to contract is installed inside the rubber sleeve, the downward pressing mechanism includes a fixed ring, an action plate and a connecting plate, the fixed ring is coaxial with the rubber sleeve, the top of the fixed ring is integrally connected with an action plate whose number and position are consistent with those of the molecular sieve, and the fixed ring is connected to the top wall of the rubber sleeve through the connecting plate.

[0012] By adopting the above technical solution, the present invention is further configured as follows: a drive shaft connected by a drive motor and a synchronous belt is installed between the molecular sieves, a drive turntable fixedly connected to the drive shaft and rotating counterclockwise following the drive shaft is fixedly connected, and a second tooth groove is provided on the side wall of the drive turntable, and the length of the second tooth groove is determined by the number of molecular sieves.

[0013] By adopting the above technical solution, the present invention is further configured as follows: the top of the driving shaft is integrally connected to a pressure plate via a connecting rod, and the opposite sides of the action plate and the pressure plate are both provided with inclined surfaces for facilitating downward pressing.

[0014] By adopting the above technical solution, the present invention is further configured as follows: the opening and closing mechanism also includes a ring sleeve, a columnar member, a spring, a sealing cover, a first tooth groove and a threaded groove. The pipe mouth is arranged at the top of the molecular sieve for air intake. The outer wall of the pipe mouth is integrally connected with a ring sleeve. A columnar member is inserted into the inner side of the ring sleeve. The sealing cover rotates with the axis of the columnar member as the center of a circle. The outer sleeve of the columnar member is provided with a spring for resetting. A ball is installed on the inner wall of the top port of the ring sleeve. A threaded groove is provided on the outer wall of the columnar member to facilitate the movement of the sealing cover in a spiral trajectory. The threaded groove and the ball cooperate. The outer side of the sealing cover is provided with a first tooth groove that meshes with the second tooth groove.

[0015] By adopting the above technical solution, the present invention is further configured as follows: the top end of the spring contacts the inner wall of the ring sleeve, and the bottom end of the spring is connected to the outer wall of the columnar member.

[0016] By adopting the above technical solution, the present invention is further configured as follows: the bottom surface of the sealing cover is covered with a rubber pad to improve the sealing performance.

[0017] By adopting the above technical solution, the present invention is further configured as follows: the material of the rubber sleeve is rubber, and the cross-section of the side wall of the rubber sleeve is wavy to facilitate contraction and expansion.

[0018] By adopting the above technical solution, the present invention is further configured as follows: a plurality of sealing rings are integrally connected to the bottom of the rubber sleeve, the sealing rings are sleeved on the outer wall of the molecular sieve, and the inner wall of the sealing ring is tightly fitted with the outer wall of the molecular sieve by elasticity.

[0019] In summary, the beneficial effects of the present invention are:

[0020] 1. This design uses a rubber sleeve to connect the air inlet holes of several molecular sieves to achieve a closed space to prevent air leakage. At the same time, with the structure inside the rubber sleeve, the opening and closing mechanism on the top of the molecular sieve can be opened in turn by rotation, so that several opening and closing mechanisms can work in turn. The molecular sieves can be used in turn through machinery, which has high stability and is easy to maintain and use.

[0021] 2. The rubber sleeve is compressed and deformed by the rotation action and the downward pressure of the pressure plate during the rotation. After compression, the gas in the rubber sleeve flows into the molecular sieve. When the molecular sieve is switched, the air intake at the moment of switching can be increased, avoiding the interruption of oxygen production due to insufficient air intake during the switching process, and realizing stable and continuous oxygen production.

[0022] 3. The corresponding sealing cover is opened by driving the turntable to rotate and cooperate with the second tooth groove, the first tooth groove and other features, and the opening trajectory of the sealing cover is a spiral ascending shape, which is convenient for fully opening the pipe port in a short time to meet the air intake requirement. When the driving turntable rotates a certain angle, the second tooth groove no longer contacts the first tooth groove on the current sealing cover, and the corresponding sealing cover can be reset and closed under the drive of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the present invention;

[0024] Figure 2 Schematic diagram of the structure of the molecular sieve of the present invention;

[0025] Figure 3 This is a schematic diagram of the enlarged structure of part A of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the opening and closing mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the explosion structure of the opening and closing mechanism of the present invention;

[0028] Figure 6 This is a schematic structural diagram of the rubber sleeve of the present invention in a compressed state;

[0029] Figure 7 It is a schematic diagram of the enlarged structure of part B of the present invention.

[0030] In the figure: 1. main body; 2. oxygen outlet pipe; 3. humidification bottle; 4. oxygen absorption pipe; 101. compressor output pipe; 201. molecular sieve; 301. oxygen storage bottle; 401. rubber sleeve; 402. sealing ring; 500. opening and closing mechanism; 501. pipe mouth; 502. ring sleeve; 503. columnar member; 504. spring; 505. ball; 506. sealing cover; 507. first tooth groove; 508. threaded groove; 601. driving motor; 602. driving shaft; 603. driving turntable; 604. second tooth groove; 701. connecting rod; 702. pressing plate; 801. fixing ring; 802. action plate; 803. connecting plate. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figures 1 to 7The present invention provides a technical solution: an oxygen production device for continuous and stable oxygen production, mainly composed of a main body 1, an oxygen outlet pipe 2, a humidification bottle 3 and an oxygen inhalation pipe 4. The oxygen outlet pipe 2 in the main body 1 is connected to the humidification bottle 3 through a catheter. The humidification bottle 3 humidifies the prepared oxygen, and its output port is connected to the oxygen inhalation pipe 4 for use by the patient. The compressor inside the main body 1 compresses the air and transports it to the rubber sleeve 401 through the compressor output pipe 101. Three molecular sieves 201 are connected to the bottom of the rubber sleeve 401, which are distributed in a ring shape and centered on the axis of the drive shaft 602. An opening and closing mechanism 500 is provided on the top of each molecular sieve 201, including an air inlet pipe port 501 and a sealing cover 506 that opens and closes along a spiral trajectory. The sealing cover 506 is used to cover the port of the pipe port 501. A driving turntable 603 is installed on the drive shaft 602 for rotating and opening the sealing cover 506 in sequence. Molecular sieve 201 is connected to oxygen storage bottle 301 via a conduit, which in turn connects to oxygen outlet pipe 2. The three opening and closing mechanisms 500 on top of molecular sieve 201 are rotated to alternately operate. This mechanical rotation of molecular sieve 201 ensures high stability and eases maintenance and use.

[0033] Specifically, the rubber sleeve 401 is internally provided with a downward pressure mechanism that drives it to contract, and the mechanism consists of a fixed ring 801, an action plate 802 and a connecting plate 803. The fixed ring 801 is coaxial with the rubber sleeve 401, and its top is integrally connected with an action plate 802 that is consistent in number and position with the molecular sieve 201. The fixed ring 801 is connected to the top wall of the rubber sleeve 401 through the connecting plate 803. The connecting plate 803 is made of plastic, and its two ends are fixed to the fixed ring 801 and the rubber sleeve 401 respectively by hot melting. The rubber sleeve 401 is made of rubber, and its side wall cross-section is wavy, which is conducive to its contraction and expansion. Three sealing rings 402 are integrally connected to the bottom of the rubber sleeve 401. The sealing ring 402 is sleeved on the outer wall of the molecular sieve 201, and its inner wall is tightly fitted with the outer wall of the molecular sieve 201 to ensure sealing.

[0034] Specifically, a drive shaft 602 is provided between the molecular sieves 201, connected by a drive motor 601 and a synchronous belt. A drive turntable 603 is fixedly connected to the drive shaft 602, rotating counterclockwise along with the drive shaft 602. A second tooth groove 604 is provided on the sidewall of the drive turntable 603. The length of the second tooth groove 604 depends on the number of molecular sieves 201. In this embodiment, there are three molecular sieves 201, so the length of the second tooth groove 604 is one-third of a circular arc.

[0035] Specifically, the top of the driving shaft 602 is integrally connected to the pressing plate 702 through the connecting rod 701, and the side of the action plate 802 facing the pressing plate 702 is provided with an inclined surface for facilitating downward pressing, thereby achieving the downward pressing operation while rotating.

[0036] Specifically, the opening and closing mechanism 500 consists of a ring sleeve 502, a columnar member 503, a spring 504, a sealing cover 506, a first tooth groove 507 and a threaded groove 508. The nozzle 501 is located at the top of the molecular sieve 201 and is used for air intake. A ring sleeve 502 is fixed on the outer wall of the nozzle 501, and the columnar member 503 is embedded in the inner side of the ring sleeve 502. The sealing cover 506 rotates around the axis of the columnar member 503. A return spring 504 is assembled on the outer side of the columnar member 503. A ball 505 is installed on the inner wall of the top port of the ring sleeve 502. The outer wall of the columnar member 503 is provided with a threaded groove 508 that facilitates the movement of the sealing cover 506 along the spiral trajectory. The threaded groove 508 cooperates with the ball 505. A first tooth groove 507 that meshes with the second tooth groove 604 is provided on the outer side of the sealing cover 506. The bottom surface of the sealing cover 506 is covered with a rubber pad to improve the sealing performance.

[0037] Specifically, the top end of the spring 504 contacts the inner wall of the ring sleeve 502, and the bottom end of the spring 504 is connected to the outer wall of the columnar member 503, and the elastic force helps to reset.

[0038] Specifically, if there is a concern about gas backflow after the rubber sleeve 401 is compressed, a one-way valve can be added to the compressor output pipe 101 to prevent backflow.

[0039] This program has the following working process:

[0040] The compressor works to compress the air and deliver it through the compressor output pipe 101, and the air is delivered to the rubber sleeve 401. At the same time, the driving motor 601 drives the driving shaft 602 in the form of a synchronous belt drive, and drives the driving turntable 603 to rotate synchronously. During the rotation, the second tooth groove 604 on the side wall of the driving turntable 603 cooperates with the sealing cover 506, driving the sealing cover 506 to rotate clockwise with the axis of the ring sleeve 502 as the center of the circle. During the rotation, the ball 505 on the inner wall of the top port of the ring sleeve 502 cooperates with the thread groove 508 on the surface of the ring sleeve 502 to achieve a threaded ascending trajectory, and the corresponding pipe port 501 is opened, and the corresponding molecular sieve 201 can take in air to filter nitrogen atoms, thereby achieving the effect of oxygen preparation;

[0041] When the driving turntable 603 rotates a certain angle, the second tooth groove 604 no longer contacts the first tooth groove 507 on the current sealing cover 506, and the corresponding sealing cover 506 is driven by the spring 504 to return to its original position and close until the second tooth groove 604 on the driving turntable 603 contacts the next opening and closing mechanism 500. The above steps are repeated to achieve the effect of rotating the molecular sieve 201 to produce oxygen.

[0042] In this embodiment, the number of molecular sieves 201 is three and is distributed equidistantly. The length of the second tooth groove 604 on the driving turntable 603 is an arc of one third of a circle, so that continuous preparation of different molecular sieves 201 can be achieved.

[0043] While rotating, the pressure plate 702, which is synchronously connected to the driving shaft 602, squeezes the action plate 802. The action plate 802 is connected to the top wall of the rubber sleeve 401 through the connecting plate 803. After the action plate 802 is squeezed and sunk, it drives the top wall of the rubber sleeve 401 to sink and shrink. The position of the action plate 802 corresponds to the position of the opening and closing mechanism 500. Therefore, the gas in the rubber sleeve 401 after compression flows into the molecular sieve 201, so that when the molecular sieve 201 is switched to work, the air intake of the molecular sieve 201 at the switching moment can be increased, thereby avoiding the interruption of oxygen production due to insufficient air intake during the switching process, and realizing stable and continuous oxygen preparation.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0045] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An oxygen production device for continuous and stable oxygen production, comprising a main body (1), an oxygen outlet pipe (2), a humidification bottle (3) and an oxygen inhalation pipe (4), wherein the oxygen outlet pipe (2) of the main body (1) is connected to the humidification bottle (3) through a catheter, the humidification bottle (3) humidifies the prepared oxygen, the output port of the humidification bottle (3) is connected to the oxygen inhalation pipe (4) for use by the patient, the compressor inside the main body (1) compresses the air and delivers it to the rubber sleeve (401) through the compressor output pipe (101), and is characterized in that: The bottom of the rubber sleeve (401) is connected to a plurality of molecular sieves (201), and the plurality of molecular sieves (201) are arranged in a circular shape with the axis of the drive shaft (602) as a circle. The top of each molecular sieve (201) has an opening and closing mechanism (500), and the opening and closing mechanism (500) includes a pipe mouth (501) for air intake and a sealing cover (506) that opens and closes along a spiral track. The sealing cover (506) is used to cover the port of the pipe mouth (501). A driving turntable (603) is installed on the drive shaft (602) for rotating and sequentially opening the sealing cover (506). The molecular sieve (201) is connected to the oxygen storage bottle (301) through a conduit, and the oxygen storage bottle (301) is communicated with the oxygen outlet pipe (2) through a conduit. A drive shaft (602) connected by a drive motor (601) and a synchronous belt is installed between the molecular sieves (201); a drive turntable (603) is fixedly connected to the drive shaft (602) and rotates counterclockwise following the drive shaft (602); a second tooth groove (604) is provided on the side wall of the drive turntable (603); the length of the second tooth groove (604) is determined by the number of molecular sieves (201); The outer side of the sealing cover (506) is provided with a first tooth groove (507) that meshes with the second tooth groove (604); A downward pressing mechanism for driving the rubber sleeve (401) to contract is installed inside the rubber sleeve (401), the downward pressing mechanism comprising a fixing ring (801), an action plate (802) and a connecting plate (803), the fixing ring (801) being coaxial with the rubber sleeve (401), the top of the fixing ring (801) being integrally connected with an action plate (802) having the same number and position as the molecular sieve (201), and the fixing ring (801) being connected to the top wall of the rubber sleeve (401) via the connecting plate (803); The top of the driving shaft (602) is integrally connected to a pressing plate (702) via a connecting rod (701), and the action plate (802) and the pressing plate (702) are both provided with inclined surfaces on the sides facing each other to facilitate downward pressing.

2. The oxygen production device for continuous and stable oxygen production according to claim 1, characterized in that: The opening and closing mechanism (500) further comprises a ring sleeve (502), a columnar member (503), a spring (504), a sealing cover (506), a first tooth groove (507) and a threaded groove (508). The nozzle (501) is provided at the top of the molecular sieve (201) for air intake. The outer wall of the nozzle (501) is integrally connected with the ring sleeve (502). The inner side of the ring sleeve (502) is provided with a columnar member (503). The sealing cover (506) rotates with the axis of the columnar member (503) as the center of the circle. The outer side of the columnar member (503) is provided with a spring (504) for resetting, and a ball (505) is installed on the inner wall of the top port of the ring sleeve (502). The outer wall of the columnar member (503) is provided with a thread groove (508) for facilitating the movement of the sealing cover (506) in a spiral trajectory. The thread groove (508) and the ball (505) cooperate with each other, and the top end of the spring (504) contacts the inner wall of the ring sleeve (502), and the bottom end of the spring (504) is connected to the outer wall of the columnar member (503).

3. The oxygen production device for continuous and stable oxygen production according to claim 1, characterized in that: The bottom surface of the sealing cover (506) is covered with a rubber pad to increase the sealing performance.

4. The oxygen production device for continuous and stable oxygen production according to claim 1, characterized in that: The material of the rubber sleeve (401) is rubber, and the cross-section of the side wall of the rubber sleeve (401) is wavy, which facilitates contraction and expansion.

5. The oxygen production device for continuous and stable oxygen production according to claim 1, characterized in that: The bottom of the rubber sleeve (401) is integrally connected with a plurality of sealing rings (402), which are sleeved on the outer wall of the molecular sieve (201), and the inner wall of the sealing ring (402) is tightly fitted with the outer wall of the molecular sieve (201) by utilizing elasticity.

Images