Adsorption tower of medical oxygen generator

Abstract

The utility model discloses a medical oxygen generator adsorption tower which comprises a tank body, the bottom end of the tank body is provided with a threaded hole and is in threaded connection with an air outlet connector matched with the threaded hole through the threaded hole, the surface of the outer wall of the top end of the tank body is provided with a pressure spring groove, and a pressure spring is arranged in the pressure spring groove in a sleeved mode. The outer wall and the inner wall of the top end of the tank body are fixedly connected with a fixing ring and a positioning ring respectively, the positioning ring and the fixing ring are annular, a perforated disc is placed on the positioning ring, a plurality of sieve holes are formed in the surface of the perforated disc, and a filtering assembly is arranged at the top end of the tank body. According to the utility model, the assembly work of the upper cover can be completed without the aid of fasteners such as bolts and the like, the disassembly work of the upper cover can be completed without the aid of tools, the molecular sieve in the tank body can be quickly filled or replaced, the working efficiency is high, and the labor intensity is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of oxygen generator adsorption towers, in particular to an adsorption tower for a medical oxygen generator. Background Art

[0002] Medical oxygen concentrator is a medical device that assists breathing by increasing oxygen concentration. It is mainly used to treat patients with respiratory and cardiovascular diseases such as chronic obstructive pulmonary disease, asthma, heart failure, etc. The adsorption tower is an important component of the medical oxygen concentrator. It is a container with molecular sieves. The molecular sieve can selectively adsorb nitrogen in the air and let oxygen pass through, so as to separate high-concentration oxygen.

[0003] At present, there are some adsorption tower structures on the market, such as a molecular sieve tank replacement structure for a portable oxygen concentrator disclosed on the Chinese Patent Network, and its announcement number is CN220531143U. This adsorption tower structure can be used for medical oxygen concentrators, but there are some defects and deficiencies that need to be improved: some existing adsorption towers are mainly composed of a tank body and a cover body, and the tank cover is mostly threadedly connected to the tank body by fasteners such as bolts. This assembly process is relatively complicated, and the fasteners need to be removed with the help of tools during disassembly, which is not only inefficient, but also labor-intensive, making it inconvenient to quickly fill or replace the molecular sieve in the adsorption tower. Therefore, in view of the above problems, the medical oxygen concentrator adsorption tower provided by the utility model is of great significance. Utility Model Content

[0004] The utility model provides an adsorption tower for a medical oxygen concentrator, wherein the top opening of a tank body can be squeezed by a compression spring in a compression spring groove, and at this time, the top opening of the tank body will be slightly deformed, so that the upper cover together with the filter assembly can be fixed in the tank body, thereby completing the assembly of the upper cover without the aid of fasteners such as bolts; by breaking open the compression spring and taking it out of the compression spring groove, the upper cover can be bounced upward and detached from the tank body under the elastic resetting action of the spring, and the disassembly of the upper cover can be completed without the aid of tools, thereby quickly filling or replacing the molecular sieve in the tank body, thereby solving the problems in the background technology in summary.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] An adsorption tower of a medical oxygen generator of the present utility model includes a tank body. A threaded hole is opened at the bottom end of the tank body, and an air outlet joint that matches it is connected by threading through the threaded hole. A compression spring groove is opened on the outer wall surface of the top end of the tank body, and a compression spring is sleeved in the compression spring groove. A fixed ring and a positioning ring are respectively fixedly connected to the outer wall and the inner wall of the top end of the tank body. Both the positioning ring and the fixed ring are annular, and a perforated disc is placed on the positioning ring. A plurality of sieve holes are opened on the surface of the perforated disc. A filtering component is arranged at the top end of the tank body;

[0007] The filtering component includes an upper cover. An air inlet joint is installed on the top of the upper cover, and a sealing groove is opened on the outer wall surface of the upper cover. A sealing ring is sleeved in the sealing groove. A plurality of limiting baffles are fixedly connected to the inner wall of the upper cover. A limiting groove is opened at the bottom of each limiting baffle, and a spring is arranged in the limiting groove.

[0008] Further, the compression spring is of a circular hoop structure, and its connection part is a disconnected design. The compression spring groove is of an annular groove structure, and the groove width thereof corresponds to and is equal to the height of the compression spring.

[0009] Further, a plurality of positioning holes are opened on the surface of the positioning ring. A plurality of positioning convex columns are fixedly connected to the bottom of the perforated disc. The cross-section of the positioning convex column is circular, the number thereof is the same as that of the positioning holes, the diameter is equal to that of the positioning holes, and the center of each positioning convex column corresponds to the center of each positioning hole one by one.

[0010] Further, both the upper cover and the tank body are circular, and the outer diameter of the upper cover corresponds to and is equal to the inner diameter of the tank body.

[0011] Further, the sealing groove is of an annular groove structure, and the groove width of the sealing groove corresponds to and is equal to the thickness of the sealing ring.

[0012] Further, the limiting baffle is L-shaped, and the limiting baffles are annularly distributed at equal intervals along the circumferential inner wall of the upper cover.

[0013] Further, a convex ring is fixedly connected to the top of the perforated disc. The convex ring is annular, and its outer diameter corresponds to and is equal to the inner diameter of the spring.

[0014] The present utility model has the following beneficial effects compared with the prior art:

[0015] (1) When the adsorption tower of a medical oxygen generator in the present utility model is in use, the compression spring in the compression spring groove can squeeze the top opening of the tank body. At this time, the top opening of the tank body will undergo slight deformation, so as to fix the upper cover together with the filtering component in the tank body, thus completing the assembly work of the upper cover without the need to rely on fasteners such as bolts;

[0016] (2) When the adsorption tower of a medical oxygen generator in the utility model is in use, the compression spring is pried open and taken out of the compression spring groove. At this time, under the elastic return action of the spring, the upper cover can be bounced upward and detached from the tank body. The upper cover can be disassembled without the aid of tools, so that the molecular sieve in the tank body can be quickly filled or replaced.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the structure of an adsorption tower of a medical oxygen generator of the utility model;

[0020] Figure 2 This is an exploded view of the structure assembly of an adsorption tower of a medical oxygen generator of the utility model;

[0021] Figure 3 This is a schematic diagram of the bottom structure of the perforated disc in the utility model;

[0022] Figure 4 It is a schematic diagram of the bottom structure of the upper cover in the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Tank body; 2. Air outlet joint; 3. Compression spring groove; 4. Compression spring; 5. Fixing ring; 6. Positioning ring; 7. Perforated disc; 8. Sieve hole; 9. Upper cover; 10. Air inlet joint; 11. Sealing groove; 12. Sealing ring; 13. Limit baffle; 14. Limit groove; 15. Spring; 16. Positioning hole; 17. Positioning boss; 18. Convex ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that terms such as "relative", "one end", "inside", "lateral", "end", "two ends", "both sides", "front", "one end face", "the other end face" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] See also Figures 1-4 As shown, a medical oxygen concentrator adsorption tower of the utility model comprises a tank body 1, a threaded hole is provided at the bottom end of the tank body 1, and an air outlet joint 2 matched therewith is threadedly connected through the threaded hole, a compression spring groove 3 is provided on the top outer wall surface of the tank body 1, a compression spring 4 is sleeved in the compression spring groove 3, a fixing ring 5 and a positioning ring 6 are fixedly connected to the top outer wall and the top inner wall of the tank body 1 respectively, the positioning ring 6 and the fixing ring 5 are both annular, and a perforated disc 7 is placed on the positioning ring 6, and a plurality of sieve holes 8 are provided on the surface of the perforated disc 7, the tank body 1 can be filled with a molecular sieve, when the filling work of the molecular sieve is completed, the perforated disc 7 can be placed on the positioning ring 6, after the gas enters the tank body 1, it will contact with the molecular sieve through each sieve hole 8, at this time, the molecular sieve can be used to adsorb nitrogen in the gas and let oxygen pass through, so as to effectively separate high-concentration oxygen, and a filtering component is arranged at the top of the tank body 1;

[0028] The filter assembly includes an upper cover 9, an air inlet connector 10 is installed on the top of the upper cover 9, and a sealing groove 11 is provided on the outer wall surface of the upper cover 9, a sealing ring 12 is sleeved in the sealing groove 11, and a plurality of limit baffles 13 are fixedly connected to the inner wall of the upper cover 9, and a limit groove 14 is provided at the bottom of each limit baffle 13, and a spring 15 is arranged in the limit groove 14. When the upper cover 9 is inserted into the top of the tank body 1 together with the filter assembly, the compression spring 4 in the compression spring groove 3 can be used to squeeze the top opening of the tank body 1, and at this time, the top opening of the tank body 1 will be slightly deformed to prevent the upper cover 9 from being damaged. The upper cover 9 together with the filter assembly is fixed in the tank body 1, so that the assembly of the upper cover 9 can be completed without the aid of fasteners such as bolts. When the molecular sieve in the tank body 1 needs to be filled or replaced, the compression spring 4 is opened again and taken out of the compression spring groove 3. At this time, under the elastic reset action of the spring 15, the upper cover 9 can be bounced upward and detached from the tank body 1. The disassembly of the upper cover 9 can be completed without the aid of tools, so that the molecular sieve in the tank body 1 can be quickly filled or replaced. The assembly and disassembly of the entire upper cover 9 is efficient and labor-intensive.

[0029] Among them, the compression spring 4 is a circular clamp structure with a disconnected design at the connection point. The compression spring groove 3 is an annular groove structure with a groove width that is equal to the height of the compression spring 4. The compression spring 4 is elastic and can be slightly deformed by prying open the compression spring 4 so that the compression spring 4 can be clamped in the compression spring groove 3 for fixation or removed from the compression spring groove 3.

[0030] Among them, a plurality of positioning holes 16 are opened on the surface of the positioning ring 6, and a plurality of positioning bosses 17 are fixedly connected to the bottom of the perforated disk 7. The cross-section of the positioning bosses 17 is circular, and the number and diameter of the positioning bosses 17 are the same as the positioning holes 16. The center of each positioning boss 17 corresponds to the center of each positioning hole 16 one by one. However, when the perforated disk 7 is placed on the positioning ring 6, each positioning boss 17 can be aligned with and pass through the corresponding positioning hole 16. At this time, the perforated disk 7 can be positioned by the mutual cooperation between the positioning bosses 17 and the positioning holes 16 so as to be fixed on the positioning ring 6.

[0031] The upper cover 9 and the tank body 1 are both circular, and the outer diameter of the upper cover 9 is equal to the inner diameter of the tank body 1 .

[0032] Among them, the sealing groove 11 is an annular groove structure, and the groove width of the sealing groove 11 is equal to the thickness of the sealing ring 12. The sealing ring 12 is made of elastic materials such as rubber and can be snapped into the sealing groove 11 for fixation. When the upper cover 9 is installed on the top of the tank body 1, the sealing ring 12 can be used to fill the gap between the upper cover 9 and the inner wall of the tank body 1 to play a sealing role, thereby effectively preventing gas from escaping through the gap.

[0033] Among them, the limit baffle 13 is L-shaped, and the limit baffle 13 is equidistantly distributed in an annular shape along the circumferential inner wall of the upper cover 9. The spring 15 can be clamped in each limit groove 14 through multiple limit baffles 13 to fix the spring 15, thereby effectively preventing the spring 15 from loosening.

[0034] Among them, a convex ring 18 is fixedly connected to the top of the perforated disk 7. The convex ring 18 is annular, and its outer diameter is equal to the inner diameter of the spring 15. When the upper cover 9 is installed on the top of the tank body 1, the spring 15 can be wrapped around and fit on the outer wall of the convex ring 18. At this time, the convex ring 18 can play a limiting role to prevent the position of the spring 15 from shifting.

[0035] The circuits, electronic components and chip modules involved in the utility model are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0036] The standard parts used in the application documents can all be purchased from the market. All the components in this application document can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art. The electrical components appearing in this article are all electrically connected to the external main controller and 220V AC power, and the main controller can be a conventional known device that controls the LED lamp body, etc.

[0037] The working principle of the utility model is:

[0038] When the utility model is in use, the molecular sieve can be filled into the tank body 1. After the filling of the molecular sieve is completed, the perforated disc 7 is placed on the positioning ring 6, and then the upper cover 9 together with the filter assembly is inserted into the top of the tank body 1. After the upper cover 9 is inserted into the tank body 1, it will fit on the top inner wall of the tank body 1. At this time, the spring 15 in the limiting groove 14 at the bottom of the limiting baffle 13 can be wound around and fit on the outer wall of the convex ring 18. As the upper cover 9 is inserted, the spring 15 will be compressed due to the force. Then the compression spring 4 is broken open to make it slightly deformed, so that the compression spring 4 can be clamped in the compression spring groove 3. The compression spring 4 in the compression spring groove 3 can be used to squeeze the top opening of the tank body 1. At this time, the top opening of the tank body 1 will be slightly deformed, so that the upper cover 9 together with the filter assembly can be fixed in the tank body 1, thereby eliminating the need for fasteners such as bolts. The assembly of the upper cover 9 can be completed, and then the gas can be introduced into the tank body 1 through the air inlet connector 10. After entering the tank body 1, the gas will contact the molecular sieve through each sieve hole 8. At this time, the molecular sieve can adsorb nitrogen in the gas and allow oxygen to pass through, so as to effectively separate high-concentration oxygen. The separated high-concentration oxygen can be exported through the air outlet connector 2 for the patient to breathe. When it is necessary to fill or replace the molecular sieve in the tank body 1, the compression spring 4 is opened again and taken out from the compression spring groove 3. At this time, under the elastic resetting action of the spring 15, the upper cover 9 can be bounced upward and detached from the tank body 1. The disassembly of the upper cover 9 can be completed without the aid of tools, so that the molecular sieve in the tank body 1 can be quickly filled or replaced, and the assembly and disassembly of the entire upper cover 9 is efficient and labor-intensive.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A medical oxygen generator adsorption tower, characterized in that, It includes a tank body. A threaded hole is opened at the bottom end of the tank body, and an air outlet joint that matches it is threadedly connected through the threaded hole. A compression spring groove is opened on the outer wall surface of the top end of the tank body. A compression spring is sleeved in the compression spring groove. A fixed ring and a positioning ring are respectively fixedly connected to the outer wall and the inner wall of the top end of the tank body. Both the positioning ring and the fixed ring are annular. A perforated disc is placed on the positioning ring. A number of sieve holes are opened on the surface of the perforated disc. A filtering component is arranged at the top end of the tank body; The filtering component includes an upper cover. An air inlet joint is installed on the top of the upper cover. A sealing groove is opened on the outer wall surface of the upper cover. A sealing ring is sleeved in the sealing groove. A number of limiting baffles are fixedly connected to the inner wall of the upper cover. A limiting groove is opened at the bottom of each limiting baffle. A spring is arranged in the limiting groove.

2. The adsorption tower of a medical oxygen generator according to claim 1, characterized in that, The compression spring is of a circular hoop structure, and its connection part is designed to be disconnected. The compression spring groove is of an annular groove structure, and the groove width thereof corresponds to the height of the compression spring.

3. The adsorption tower of a medical oxygen generator according to claim 1, characterized in that, A number of positioning holes are opened on the surface of the positioning ring. A number of positioning convex columns are fixedly connected to the bottom of the perforated disc. The cross section of the positioning convex column is circular, the number thereof is the same as that of the positioning holes, the diameter thereof is equal to that of the positioning holes, and the center of each positioning convex column corresponds to the center of each positioning hole one by one.

4. The adsorption tower of a medical oxygen generator according to claim 1, characterized in that, Both the upper cover and the tank body are circular, and the outer diameter of the upper cover corresponds to the inner diameter of the tank body.

5. The adsorption tower of a medical oxygen generator according to claim 1, characterized in that, The sealing groove is of an annular groove structure, and the groove width of the sealing groove corresponds to the thickness of the sealing ring.

6. The adsorption tower of a medical oxygen generator according to claim 1, characterized in that, The limiting baffle is L-shaped, and the limiting baffles are annularly distributed at equal intervals along the circumferential inner wall of the upper cover.

7. The adsorption tower of a medical oxygen generator according to claim 1, characterized in that, A convex ring is fixedly connected to the top of the perforated disc. The convex ring is annular, and its outer diameter corresponds to the inner diameter of the spring.

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