Integrated oxygenerator screen drum structure

Abstract

The utility model relates to an integrated oxygenerator screen drum structure which comprises a screen drum, a first end cover and a second end cover are arranged at the two ends of an opening of the screen drum respectively, the screen drum comprises a molecular sieve cavity and an oxygen storage tank cavity, the first end cover comprises a molecular sieve cavity sealing part matched with the opening of the molecular sieve cavity, and the second end cover comprises a second end cover matched with the opening of the oxygen storage tank cavity. The molecular sieve cavity sealing part is matched with the oxygen storage tank cavity opening, the oxygen storage tank cavity sealing part is matched with the oxygen storage tank cavity opening, the molecular sieve cavity sealing part and the oxygen storage tank cavity sealing part share at least part of a sealing area, and an integrally-formed first sealing ring is arranged between the molecular sieve cavity sealing part and the oxygen storage tank cavity sealing part; the screen drum comprises the first molecular sieve cavity, the second molecular sieve cavity and the oxygen storage tank cavity which are integrally designed, the screen drum is sealed through the first end cover and the second end cover which are integrally formed, sealing consistency is better, leakage is not prone to occurring, the number of parts is reduced, cost is saved, and production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of oxygen generators, and in particular to an integrated oxygen generator sieve drum structure. Background Art

[0002] The existing oxygen generator sieve cylinder structure is mostly a split structure, that is, it consists of two separate molecular sieve cylinders and a separate oxygen storage tank. This solution has three tanks, and each tank needs to be sealed with a sealing ring on the top and bottom, so there are a total of 6 sealing points. Leakage at any sealing point will cause poor performance of the oxygen generator sieve cylinder structure. For example, Chinese patent number CN201410846901.2 discloses an integrated molecular sieve cylinder for a molecular sieve pressure swing adsorption oxygen generator, which includes an upper cover, a lower cover, an aluminum cylinder, a distribution valve and a pressure-stabilizing cylinder. Two aluminum cylinders are installed between the upper cover and the lower cover, and the upper and lower covers are fixedly connected to the aluminum cylinders by screws, respectively. A distribution valve is installed on the upper surface of the upper cover, and the distribution valve is connected to the two aluminum cylinders, respectively. The pressure-stabilizing cylinder and the base are an integral part, and a channel connecting the aluminum cylinder and the pressure-stabilizing cylinder is provided on the bottom plate; the upper cover is provided with air holes corresponding to the air inlet and outlet of the aluminum cylinder and the distribution valve, and the air holes are connected through grooves; the lower cover is provided with air holes connected to the aluminum cylinder and the pressure-stabilizing cylinder, and the air holes are connected through the upper annular closed groove on the bottom surface of the lower cover, and a sealing ring is provided on the bottom surface of the upper cover and the connecting surface of the aluminum cylinder. In this patent, each aluminum cylinder is sealed with the upper cover or the lower cover by a different sealing ring, and any unqualified product design will cause leakage. Therefore, it is urgent to provide a new type of oxygen concentrator sieve drum structure to solve the shortcomings of the existing oxygen concentrator sieve drum structure, such as low degree of integration, difficult assembly, and high risk of defects. Utility Model Content

[0003] Based on this, in order to achieve the sealing performance of the oxygen generator sieve drum structure, an embodiment of the present application provides an integrated oxygen generator sieve drum structure, including a sieve drum, and a first end cover and a second end cover are respectively arranged at the two ends of the sieve drum opening, the sieve drum includes a molecular sieve cavity and an oxygen storage tank cavity, the first end cover includes a molecular sieve cavity sealing portion adapted to the molecular sieve cavity opening, and an oxygen storage tank cavity sealing portion adapted to the oxygen storage tank cavity opening, the molecular sieve cavity sealing portion and the oxygen storage tank cavity sealing portion share at least a partial sealing area, and an integrally formed first sealing ring is arranged between the molecular sieve cavity sealing portion and the oxygen storage tank cavity sealing portion.

[0004] Preferably, the molecular sieve cavity includes a first molecular sieve cavity and a second molecular sieve cavity, the first molecular sieve cavity and the second molecular sieve cavity are respectively located on both sides of the oxygen storage tank cavity, the molecular sieve cavity sealing portion includes a first sealing portion and a second sealing portion, the oxygen storage tank cavity sealing portion includes a third sealing portion, and the third sealing portion shares at least a partial sealing area with the first sealing portion and the second sealing portion, respectively.

[0005] Preferably, the second end cover includes a fifth sealing portion adapted to the opening of the oxygen storage tank cavity, and a fourth sealing portion and a sixth sealing portion adapted to a pair of molecular sieve cavity openings located on both sides of the oxygen storage tank cavity, and the fourth sealing portion and the sixth sealing portion each have a partial sealing area overlapping with the fifth sealing portion.

[0006] Preferably, an integrally formed second sealing ring is provided between the fourth sealing portion, the fifth sealing portion and the sixth sealing portion.

[0007] Preferably, the first sealing ring includes a first ring body and a second ring body, and the first ring body and the second ring body share at least a part of the sealing ring body.

[0008] Preferably, the second sealing ring includes a fifth ring body, a fourth ring body and a sixth ring body are respectively arranged on both sides of the fifth ring body, and the fifth ring body shares at least a part of the sealing ring body with the fourth ring body and the sixth ring body respectively.

[0009] Compared with the prior art, the advantages of this application are:

[0010] (1) The sieve cylinder of the present application includes a first molecular sieve cavity, a second molecular sieve cavity and an oxygen storage tank cavity of an integral design. The sieve cylinder is sealed by an integrally formed first end cover and a second end cover, which has better sealing consistency and is not prone to leakage. The assembly is simple and efficient, and the production efficiency is high.

[0011] (2) In the present application, two sealing areas are shared between the three sealing parts, which form a complete sealing area as a whole. The sealing ring and the sealing part are designed in a contoured manner, and two sealing ring bodies are shared between the three sealing ring bodies. Compared with the traditional form of multiple seals, the structural design is simpler, the sealing effect is better, the service life is longer, and the efficiency of manual assembly is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present application is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 This is a schematic diagram of the overall structure of an integrated oxygen generator sieve drum structure for this application;

[0014] Figure 2 This is an exploded view of an integrated oxygen concentrator sieve drum structure of the present application;

[0015] Figure 3 This is an exploded view of a first end cover and a sealing ring of an integrated oxygen generator sieve drum structure of the present application;

[0016] Figure 4 This is a schematic diagram of a second end cover of an integrated oxygen generator sieve drum structure according to the present application.

[0017] in:

[0018] 1. a first end cover, 11. a first sealing portion, 12. a second sealing portion, 13. a third sealing portion;

[0019] 2. second end cover, 21. fourth sealing portion, 22. fifth sealing portion, 23. sixth sealing portion;

[0020] 3. Screen drum;

[0021] 4. The first molecular sieve cavity,

[0022] 5. The second molecular sieve cavity;

[0023] 6. Oxygen storage tank cavity;

[0024] 7, first sealing ring; 71, first ring body, 72, second ring body, 73, third ring body, 713, first sealing ring body, 723, second sealing ring body;

[0025] 8. Second sealing ring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiment is only one embodiment of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] "Embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present application. In the description of the embodiment of the present application, it should be understood that the terms "first", "second" and "third" etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" etc. may include one or more of the features explicitly or implicitly. Moreover, the terms "first", "second" and "third" etc. are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiment of the present application described here can be implemented in an order other than illustrated or described here. In addition, the terms "including" and "for" and any of their variations are intended to cover non-exclusive inclusions.

[0028] like Figure 1As shown, the present embodiment provides an integrated oxygen generator sieve cylinder structure, including a first end cover 1 and a second end cover 2, a sieve cylinder 3 is arranged between the first end cover 1 and the second end cover 2, the first end cover 1 and the second end cover 2 are respectively covered and sealed at both ends of the sieve cylinder 3, an air inlet and an air outlet are arranged on the first end cover, which are used to enter and exit the gas in the sieve cylinder 3. Usually, the cylinder includes a molecular sieve sieve cylinder and an oxygen storage tank cylinder, and there is also a pair of molecular sieve sieve cylinders and an oxygen storage tank cylinder. In either case, the two ends of the sieve cylinder 3 need to be sealed with the first end cover 1 and the second end cover 2 through a sealing mechanism.

[0029] like Figure 2 As shown, the sieve cylinder 3 includes a first molecular sieve cavity 4, a second molecular sieve cavity 5 and an oxygen storage tank cavity 6 located between the first molecular sieve cavity 4 and the second molecular sieve cavity 5. A first sealing ring 7 is arranged between the first end cover 1 and the sieve cylinder 3, and a second sealing ring 8 is arranged between the second end cover 2 and the sieve cylinder 3. When the first end cover 1 and the second end cover 2 are respectively installed with the cylinder body 3 through the first sealing ring 7 and the second sealing ring 8, the entire oxygen generator sieve cylinder structure is assembled.

[0030] like Figure 3 As shown, the first end cover 1 is integrally formed and is provided with three sealing parts, namely a first sealing part 11 for sealing one end of the first molecular sieve cavity 4, a second sealing part 12 for sealing one end of the second molecular sieve cavity 5, and a third sealing part 13 for sealing one end of the oxygen storage tank cavity 6. A first sealing ring 7 is arranged around the first sealing part 11, the second sealing part 12 and the third sealing part 13. In this embodiment, the first sealing ring 7 is integrally formed, and the first sealing ring 7 includes a first ring body 71, a second ring body 72 and a third ring body 73, wherein the first ring body 71 is installed around the first sealing part 11, the second ring body 72 is installed around the second sealing part 12, and the third ring body 73 is installed around the third sealing part 13. Therefore, the first sealing ring 7 integrally formed is installed on the first end cover 1, and then covered on the cylinder 3 to achieve sealing.

[0031] A first sealing ring body 713 is shared between the first ring body 71 and the third ring body 73, and a first sealing ring body 723 is shared between the second ring body 72 and the third ring body 73, so that the first molecular sieve cavity 4, the second molecular sieve cavity 5 and the oxygen storage tank cavity 6 are sealed by only one sealing ring body, and two adjacent sealing ring bodies share an end face, so that the sealing consistency is better, and the utilization efficiency of the product can be improved. It takes less time in the assembly production process, thereby improving production efficiency.

[0032] In this embodiment, the first ring body 71 is circular, and the second ring body 73 is also circular, so the third ring body 73 that shares a sealing ring body with the first ring body 71 and the second ring body 73 is provided with an irregular concave shape. Based on this design, the first ring body 71, the second ring body 72 and the third ring body 73 have better consistency, are made of the same material and integrally formed, the processing accuracy of the components is maintained consistent, and the sieve drum 3 is also integrally formed, so the overall sealing of the oxygen concentrator sieve drum structure after assembly is better.

[0033] like Figure 4 As shown, the second end cover 2 is integrally formed, and a fifth sealing portion 22 adapted to the opening of the oxygen storage tank cavity 6, as well as a fourth sealing portion 21 and a sixth sealing portion 23 adapted to the openings of the first molecular sieve cavity 4 and the second molecular sieve cavity 5 located on both sides of the oxygen storage tank cavity 6 are provided on the second end cover 2. The fourth sealing portion 21 and the sixth sealing portion 23 each have a partial sealing area that overlaps with the fifth sealing portion 22. In this embodiment, the fourth sealing portion 21 and the sixth sealing portion 23 are circular sealing portions, and two arcs close to each other in the fourth sealing portion 21 and the sixth sealing portion 23 form a partial sealing portion of the fifth sealing portion 22, thereby the fourth sealing portion 21, the fifth sealing portion 22 and the sixth sealing portion 23 form an integral sealing portion, and then an integrally formed second sealing ring 8 is installed in the fourth sealing portion 21, the fifth sealing portion 22 and the sixth sealing portion 23, and finally the pre-assembled sealing portion is assembled and fixed to the sieve cylinder 3, that is, the sealing of the second end cover 2 and the cylinder body 3 is achieved.

[0034] The above embodiments are only for illustrating the technical concept and features of the present application, and their purpose is to enable people familiar with this technology to understand the content of the present application and implement it accordingly, and they cannot be used to limit the scope of protection of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present application.

Claims

1. An integrated oxygen concentrator sieve drum structure, comprising a sieve drum, wherein a first end cap and a second end cap are respectively disposed at two ends of the sieve drum opening, wherein: The sieve cylinder includes a molecular sieve cavity and an oxygen storage tank cavity, the first end cover includes a molecular sieve cavity sealing portion adapted to the molecular sieve cavity opening, and an oxygen storage tank cavity sealing portion adapted to the oxygen storage tank cavity opening, the molecular sieve cavity sealing portion and the oxygen storage tank cavity sealing portion share at least a partial sealing area, and an integrally formed first sealing ring is arranged between the molecular sieve cavity sealing portion and the oxygen storage tank cavity sealing portion.

2. The integrated oxygen generator sieve drum structure according to claim 1, characterized in that: The molecular sieve cavity includes a first molecular sieve cavity and a second molecular sieve cavity, the first molecular sieve cavity and the second molecular sieve cavity are respectively located on both sides of the oxygen storage tank cavity, the molecular sieve cavity sealing portion includes a first sealing portion and a second sealing portion, the oxygen storage tank cavity sealing portion includes a third sealing portion, and the third sealing portion shares at least a partial sealing area with the first sealing portion and the second sealing portion, respectively.

3. The integrated oxygen generator sieve drum structure according to claim 2, characterized in that: The second end cover includes a fifth sealing portion adapted to the opening of the oxygen storage tank cavity, and a fourth sealing portion and a sixth sealing portion adapted to a pair of molecular sieve cavity openings located on both sides of the oxygen storage tank cavity, and the fourth sealing portion and the sixth sealing portion each have a partial sealing area that overlaps with the fifth sealing portion.

4. The integrated oxygen generator sieve drum structure according to claim 3, characterized in that: An integrally formed second sealing ring is provided between the fourth sealing portion, the fifth sealing portion and the sixth sealing portion.

5. An integrated oxygen concentrator sieve drum structure according to claim 1, 2 or 3, characterized in that: The first sealing ring includes a first ring body and a second ring body, and the first ring body and the second ring body share at least a part of the sealing ring body.

6. The integrated oxygen concentrator sieve drum structure according to claim 4, characterized in that: The second sealing ring includes a fifth ring body, a fourth ring body and a sixth ring body are respectively arranged on both sides of the fifth ring body, and the fifth ring body shares at least a part of the sealing ring body with the fourth ring body and the sixth ring body respectively.

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