Improved oxygen generator back flushing structure

Abstract

The utility model discloses an improved oxygen generator back flushing structure which comprises a box body, and a back flushing assembly is arranged in the box body; the reverse blowing assembly comprises a shell, one side of the shell is provided with a mounting cavity, and the other side of the shell is provided with a first connecting port and a second connecting port; the first connecting port is connected with an exhaust port of the molecular sieve through a first pipeline, and the second connecting port is connected with an air inlet of the air compressor through a second connecting pipe; a supporting shaft is further arranged in the mounting cavity, a cover plate is rotationally mounted on the supporting shaft, a first supporting cylinder and a second supporting cylinder are arranged on the face, facing the mounting cavity, of the cover plate, and round holes are formed in the bottom face of the first supporting cylinder and the bottom face of the second supporting cylinder; and when the round hole in the first supporting cylinder is connected and communicated with the first connecting port, the round hole in the second supporting cylinder is connected and communicated with the second connecting port. On the basis, the equipment can clean the filter element by using waste gas while ensuring normal gas inlet, so that the purpose of prolonging the service life of the filter element can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of oxygen production equipment technology, specifically to an improved backflushing structure for an oxygen generator. Background Technology

[0002] Currently, some oxygen concentrators are inconvenient to replace their filters after prolonged use. The filter is one of the main components of an oxygen concentrator. A search revealed existing technology with announcement number CN214597883U, whose general solution is as follows: The system uses components such as a support block, a locking rod, a sliding rod, a first spring, a second spring, and a filter. The locking rod limits the position of the support block, while the sliding rod and the locking block further limit the support block, facilitating filter installation. The first spring allows the sliding rod to automatically rebound upwards, and the second spring allows the locking block to automatically reset.

[0003] This shows that it is mainly limited to replacing the used filter. At the same time, the molecular sieve of the oxygen generator will also emit waste gas when it is working. Therefore, the oxygen generator needs to be improved in order to extend the service life of the filter by adding a backflushing structure. Utility Model Content

[0004] The purpose of this invention is to provide an improved backflushing structure for an oxygen generator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved backflushing structure for an oxygen concentrator, comprising a housing, wherein a backflushing assembly is provided inside the housing; the backflushing assembly comprises a shell, one side of the shell having an installation cavity, and the other side of the shell having a first connection port and a second connection port connected and communicating with the installation cavity; the first connection port is connected to the exhaust port of a molecular sieve through a first pipe, and the second connection port is connected to the air inlet of an air compressor through a second connecting pipe; a support shaft is also provided inside the installation cavity, and a cover plate is rotatably mounted on the support shaft; the side of the cover plate facing the installation cavity has a first support cylinder and a second support cylinder for installing a filter element, and both the first support cylinder and the second support cylinder have circular holes on their bottom surfaces; when the circular hole on the first support cylinder is connected and communicating with the first connection port, the circular hole on the second support cylinder is connected and communicating with the second connection port.

[0006] As a preferred technical solution of this utility model: the cover plate is further provided with a partition plate, and when the cover plate covers the mounting cavity, the partition plate is used to separate the first support cylinder and the second support cylinder.

[0007] As a preferred technical solution of this utility model: the side of the first support cylinder and the second support cylinder away from the mounting cavity is connected to the provided plug, and the cover plate is also provided with a vent hole.

[0008] As a preferred technical solution of this utility model: the mounting cavity is further provided with a groove, and the bottom surface of the groove is also provided with a drain port, and the bottom surface of the drain port discharges the dust in the groove to the outside of the box through a drain pipe.

[0009] As a preferred technical solution of this utility model: one end of the support shaft passes through the cover plate and is threadedly engaged with a nut, and the first support cylinder and the second support cylinder are also provided with a sealing gasket on the side facing the mounting cavity.

[0010] As a preferred technical solution of this utility model: the inner wall surface of the mounting cavity is further provided with a marking line, and the cover plate is further provided with an indicator arrow.

[0011] The beneficial effects of this utility model using the above technical solution are as follows: By alternately connecting two support cylinders to their corresponding connection ports, for example, when the filter element inside the second support cylinder needs cleaning, rotating the cover plate causes the second support cylinder to connect to the first connection port, allowing for cleaning of the filter element inside the second support cylinder. Similarly, when the filter element inside the first support cylinder needs cleaning, rotating the first support cylinder to the first connection port allows for cleaning of its internal filter element. Based on this, the device can clean the filter element using exhaust gas while ensuring normal air intake, thus extending the service life of the filter element. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of the box body of this utility model;

[0013] Figure 2 This is an exploded view of one side of the housing of this utility model;

[0014] Figure 3 This is an exploded structural diagram of the backflush assembly of this utility model;

[0015] Figure 4 This is a cross-sectional structural diagram of the backflush assembly of this utility model;

[0016] Figure 5 This is a cross-sectional structural diagram of the shell of this utility model;

[0017] Figure 6 This is a schematic diagram of one side of the cover plate of this utility model;

[0018] Figure 7 This is a schematic diagram of the other side of the cover plate of this utility model.

[0019] In the diagram: 1. Box body; 2. First pipe; 3. Backflush assembly; 30. Shell; 31. Mounting cavity; 32. Support shaft; 33. Cover plate; 34. Groove; 35. Sealing gasket; 36. Nut; 37. Filter element; 38. Plug; 39. Drain outlet; 310. Marking line; 311. First connection port; 312. Second connection port; 313. Partition plate; 314. Round hole; 315. Vent hole; 316. First support cylinder; 317. Second support cylinder; 318. Indicator arrow; 4. Second connecting pipe; 5. Drain pipe. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.

[0021] Please see Figure 1-7 This utility model provides an embodiment of an improved oxygen generator backflushing structure, comprising a housing 1, wherein a backflushing assembly 3 is provided inside the housing 1; the backflushing assembly 3 includes a shell 30, one side of the shell 30 having a mounting cavity 31, and the other side of the shell 30 having a first connection port 311 and a second connection port 312 connected and communicating with the mounting cavity 31; the first connection port 311 is connected to the exhaust port of a molecular sieve through a first pipe 2, and the second connection port 312 is connected to the air inlet of an air compressor through a second connecting pipe 4. The mounting cavity 31 is further provided with a support shaft 32, on which a cover plate 33 is rotatably mounted. The side of the cover plate 33 facing the mounting cavity 31 is provided with a first support cylinder 316 and a second support cylinder 317 for mounting the filter element 37. The bottom surfaces of the first support cylinder 316 and the second support cylinder 317 are provided with round holes 314. When the round hole 314 on the first support cylinder 316 is connected to the first connection port 311, the round hole 314 on the second support cylinder 317 is connected to the second connection port 312.

[0022] In practical use, when the second support cylinder 317 is connected to the second connection port 312, the purified air can be delivered to the air compressor; when the second support cylinder 317 is connected to the second connection port 312, the first support cylinder 316 is connected to the first connection port 311. At this time, the exhaust gas discharged from the molecular sieve can be blown from the inside of the filter element 37 to the outside of the filter element 37, thus blowing away the dust attached to the outer wall of the filter element 37 and cleaning the filter element.

[0023] In summary, rotating the cover plate 33 causes the two support cylinders to alternately connect with their corresponding connection ports. For example, when the filter element 37 inside the second support cylinder 317 needs cleaning, rotating the cover plate 33 causes the second support cylinder 317 to connect with the first connection port 311, allowing backflushing of the filter element 37 inside the second support cylinder 317 for cleaning. When the filter element 37 inside the first support cylinder 316 needs cleaning, rotating the first support cylinder 316 to the first connection port 311 allows backflushing of the filter element 37 inside for cleaning. Based on this, the device can clean the filter element 37 using exhaust gas while ensuring normal air intake, thus extending the service life of the filter element.

[0024] In addition, by rotating the cover plate 33, the two support cylinders are alternately connected to the two connection ports, so that the equipment can replace and clean the filter element 37 without stopping the machine.

[0025] Furthermore, since the cover plate 33 is also provided with a partition plate 313, when the cover plate 33 is placed over the mounting cavity 31, the partition plate 313 separates the first support cylinder 316 from the second support cylinder 317. Therefore, by using the partition plate 313 to separate the first support cylinder 316 and the second support cylinder 317, the amount of dust flowing to the second connection port 312 during backflushing of the first connection port 311 is reduced.

[0026] In addition, the side of the first support cylinder 316 and the second support cylinder 317 away from the mounting cavity 31 is connected to the provided plug 38, and the cover plate 33 is also provided with a vent hole 315. Therefore, the plug 38 can be used to prevent the filter element 37 from falling off, and at the same time, the plug 38 can be used to fix the filter element 37 in the support cylinder.

[0027] Based on the above solution, since the mounting cavity 31 is further provided with a groove 34, and the bottom surface of the groove 34 is provided with a drain port 39, and the bottom surface of the drain port 39 discharges the dust in the groove 34 to the outside of the housing 1 through a drain pipe 5, the blown dust can move along the outer wall of the mounting cavity 31 into the groove 34, and then be discharged through the drain pipe 5 in the groove 34.

[0028] Furthermore, since one end of the support shaft 32 passes through the cover plate 33 and is threaded into the provided nut 36, the cover plate 33 can be fixed to the support shaft 32 by tightening the nut 36. At the same time, the first support cylinder 316 and the second support cylinder 317 are provided with sealing gaskets 35 on the side facing the mounting cavity 31. Therefore, by covering the radial direction of the round hole 314 and the second connection port 312 with the sealing gasket 35, the air source can be prevented from entering the second connection port 312 through the gap between the opposing surfaces of the support cylinder and the mounting cavity 31. One end of the sealing gasket 35 is fitted on the end face of the support cylinder, and the other end is in contact with the inner wall surface of the mounting cavity 31.

[0029] Furthermore, the inner wall of the mounting cavity 31 is provided with a marking line 310, and the cover plate 33 is provided with an indicator arrow 318. Therefore, when the indicator arrow 318 is aligned with the marking line 310, it can remind the user to align the round hole 314 on the support cylinder of the second connection port 312. Based on this, it can also avoid the phenomenon that the second connection port 312 and the round hole 314 cannot be aligned due to excessive rotation by the user, resulting in poor airflow.

[0030] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. An improved backflushing structure for an oxygen concentrator, characterized in that: Includes a housing (1), and the housing (1) is provided with a backflushing assembly (3); The backflush assembly (3) includes a housing (30), one side of which is provided with a mounting cavity (31), and the other side of which is provided with a first connection port (311) and a second connection port (312) that are connected and communicate with the mounting cavity (31). The first connection port (311) is connected to the exhaust port of the molecular sieve through the provided first pipe (2), and the second connection port (312) is connected to the air inlet of the air compressor through the provided second connection pipe (4); The mounting cavity (31) is also provided with a support shaft (32), and a cover plate (33) is rotatably mounted on the support shaft (32). The side of the cover plate (33) facing the mounting cavity (31) is provided with a first support cylinder (316) and a second support cylinder (317) for mounting the filter element (37), and the bottom surfaces of the first support cylinder (316) and the second support cylinder (317) are both provided with round holes (314). When the round hole (314) on the first support cylinder (316) is connected to the first connection port (311), the round hole (314) on the second support cylinder (317) is connected to the second connection port (312).

2. The improved oxygen generator backflushing structure according to claim 1, characterized in that: The cover plate (33) is also provided with a partition plate (313). When the cover plate (33) covers the mounting cavity (31), the partition plate (313) separates the first support cylinder (316) from the second support cylinder (317).

3. The improved oxygen generator backflushing structure according to claim 2, characterized in that: The side of the first support cylinder (316) and the second support cylinder (317) away from the mounting cavity (31) is connected to the provided plug (38), and the cover plate (33) is also provided with a vent hole (315).

4. An improved oxygen generator backflushing structure according to claim 1, 2, or 3, characterized in that: The mounting cavity (31) is also provided with a groove (34), and the bottom surface of the groove (34) is also provided with a drain port (39), and the bottom surface of the drain port (39) discharges the dust in the groove (34) to the outside of the box (1) through the drain pipe (5).

5. An improved oxygen generator backflushing structure according to claim 4, characterized in that: One end of the support shaft (32) passes through the cover plate (33) and is threaded into the nut (36). The first support cylinder (316) and the second support cylinder (317) are also provided with a sealing gasket (35) on the side facing the mounting cavity (31).

6. An improved oxygen generator backflushing structure according to claim 5, characterized in that: The inner wall of the mounting cavity (31) is also provided with a marking line (310), and the cover plate (33) is also provided with an indicator arrow (318).

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