Oxygen generator with filter element cavity

Abstract

The utility model discloses an oxygen generator with a filter element cavity, which comprises a shell, an air inlet pipe is arranged in the shell, the filter element cavity is arranged on the bottom surface of the shell, the filter element cavity is communicated with the air inlet pipe, a bottom cover is arranged on the bottom surface of the filter element cavity, at least one air inlet is arranged at the bottom of the front surface of the shell, and an air transmission gap is reserved between the bottom of the side wall of the filter element cavity and the bottom cover. And the gas transmission gap is communicated with the gas inlet. The top of the filter element cavity is provided with an air vent communicated with the air inlet pipe, and at least two supporting ribs extending in the radial direction of the air vent are arranged at the position, close to the air vent, of the top of the filter element cavity around the air vent. According to the utility model, the filter element is convenient to take out and replace, and impurities in the shell are convenient to discharge.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrators, in particular to an oxygen concentrator with a filter core cavity. Background Art

[0002] The filter chamber of the oxygen concentrator is an important part of the oxygen concentrator. It mainly carries and fixes the filter element to ensure that the filter element can work normally and effectively. The filter element plays a vital role in the oxygen concentrator. Its main functions include filtering particles, odors and bacteria in the air, and protecting the internal parts of the oxygen concentrator from contaminants.

[0003] The filter element in the existing oxygen concentrator is as follows Figure 1 As shown, the filter element is cylindrical and inserted upward from the bottom surface of the oxygen concentrator housing into the air inlet pipe of the oxygen concentrator. The filter element is vertically arranged to the bottom surface of the oxygen concentrator. This filter element is not easy to remove and is not convenient for replacement and maintenance. Utility Model Content

[0004] The utility model aims to provide an oxygen concentrator with a filter element cavity, which is convenient for taking out the filter element and replacing the filter element, and convenient for discharging impurities in the shell.

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

[0006] An oxygen concentrator with a filter element cavity comprises a housing, an air inlet pipe is arranged in the housing, a filter element cavity is arranged on the bottom surface of the housing, the filter element cavity is connected to the air inlet pipe, a bottom cover is arranged on the bottom surface of the filter element cavity, at least one air inlet is arranged at the bottom of the front surface of the housing, an air supply gap is left between the bottom of the side wall of the filter element cavity and the bottom cover, and the air supply gap is connected to the air inlet. A filter element matching the filter element cavity is arranged in the filter element cavity. Its function is that, through the arrangement of the filter element cavity and the bottom cover, the filter element in the filter element cavity can be easily placed in the filter element cavity, and the filter element in the filter element cavity can be taken out by opening the bottom cover, which is convenient for replacement and maintenance; through the arrangement of the air supply gap and the air inlet, the air can pass through the air inlet and the air supply gap in sequence, and then flow into the filter element from the bottom of the side wall of the filter element for filtration.

[0007] Furthermore, the top of the filter element cavity is provided with an air vent connected to the air inlet pipe, and at least two supporting ribs are provided near the air vent at the top of the filter element cavity. The function of the air vent is to allow the air flowing in from the bottom of the side wall of the filter element to enter the air vent from bottom to top after being filtered by the filter element and then discharged into the air inlet pipe, so that the gas can have a longer travel path in the filter element and have a good filtering effect; through the setting of the supporting ribs, a small gap can be left between the filter element and the top surface of the filter element cavity, so that the filter element has a tendency to bulge below the bottom surface of the filter element cavity, which is convenient for removing the filter element.

[0008] Furthermore, at least two support bars are arranged on the top surface of the bottom cover, and the top surface of the support bars contacts the bottom surface of the side wall of the filter element cavity. The function of the support bars is to separate the filter element from the bottom cover by a certain gap, so that the air can flow to the bottom surface of the filter element after passing through the air transmission gap and then enter the filter element.

[0009] Furthermore, the shell is provided with an air guide plate vertically arranged with respect to the bottom surface of the shell, the air guide plate corresponds to the air inlet, and the side wall of the air guide plate is located in the middle of the air transmission gap. Its function is that, through the arrangement of the air guide plate, the airflow entering the shell through the air inlet can be guided to the air transmission gap.

[0010] Furthermore, the filter element cavity is in the shape of a rectangular parallelepiped, with the surface of the filter element cavity facing the front of the shell as the front of the filter element cavity, the bottom area of ​​the filter element cavity is larger than the area of ​​the front of the filter element cavity, and the area of ​​the front of the filter element cavity is larger than the area of ​​the side of the filter element cavity.

[0011] Furthermore, the support bar is vertically arranged on the side of the filter element cavity, and the width of the support bar is smaller than the width of the side of the filter element cavity. Its function is to enable the airflow to smoothly pass through the air transmission gap and enter the bottom of the filter element through the design of the spatial relationship between the support bar and the filter element cavity.

[0012] Furthermore, an air inlet is respectively provided on the left and right sides of the filter element cavity at the bottom of the front side of the shell, and the air transmission gap is provided on the bottom surfaces of the left and right side walls of the filter element cavity.

[0013] Furthermore, a filter screen is provided on the air inlet, and its function is to filter the gas entering the housing through the air inlet through the arrangement of the filter screen.

[0014] Furthermore, the bottom cover is threadedly connected to the bottom surface of the shell.

[0015] Furthermore, a waste discharge gap is left between the side wall of the bottom of the shell facing the bottom cover near the gas transmission gap and the bottom cover, and a waste discharge ramp is provided on the side wall of the bottom of the shell facing the waste discharge gap. The distance between the waste discharge ramp and the bottom cover gradually decreases from top to bottom. Its function is to discharge impurities in the shell through the setting of the waste discharge gap, and prevent impurities in the shell from entering the filter element through the gas transmission gap; and to facilitate the impurities in the shell to fall into the waste discharge gap through the waste discharge ramp and then be discharged outside the shell.

[0016] The utility model has the beneficial effects:

[0017] 1. Through the arrangement of the filter element cavity and the bottom cover, the filter element can be conveniently placed in the filter element cavity. The filter element in the filter element cavity can be taken out by opening the bottom cover, which is convenient for replacement and maintenance. Through the arrangement of the air transmission gap and the air inlet, the air can flow into the filter element from the bottom of the side wall of the filter element for filtration after passing through the air inlet and the air transmission gap in sequence.

[0018] 2. By setting the position of the vent, the air flowing in from the bottom of the side wall of the filter element is filtered from the filter element from bottom to top, enters the vent, and then is discharged into the intake pipe, so that the gas can have a longer travel path in the filter element, and the filtering effect is good; by setting the support ribs, a small gap can be left between the filter element and the top surface of the filter element cavity, so that the filter element tends to bulge below the bottom surface of the filter element cavity, which is convenient for removing the filter element; by designing the spatial relationship between the support ribs and the vent, when the filter element squeezes the support ribs, a path concentrated toward the vent is formed, which plays a role in guiding the airflow in the filter element;

[0019] 3. By setting the waste discharge gap, impurities in the shell can be discharged to prevent the impurities in the shell from entering the filter element through the gas transmission gap; by setting the waste discharge ramp, the impurities in the shell can be discharged outside the shell after falling into the waste discharge gap through the waste discharge ramp. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an oxygen concentrator in the prior art;

[0021] Figure 2 Schematic diagram of the three-dimensional structure of the oxygen concentrator (without the bottom cover) in Example 1;

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 4 It is a schematic diagram of a three-dimensional cross-sectional structure of the oxygen concentrator (without the bottom cover) in Example 1;

[0024] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 6 Schematic diagram of the three-dimensional cross-sectional structure of the oxygen concentrator (including the bottom cover) in Example 1;

[0026] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the oxygen generator (without the bottom cover) in Example 2.

[0028] Figure numerals: 1. Shell; 2. Air inlet pipe; 3. Filter element cavity; 4. Bottom cover; 5. Air inlet; 6. Air transmission gap; 7. Air vent; 8. Support rib; 9. Support bar; 10. Air guide plate; 11. Filter screen; 12. Waste discharge gap; 13. Waste discharge ramp; 14. Filter element. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0030] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example 1

[0033] An oxygen concentrator having a filter chamber, such as Figure 6 As shown, it includes a housing 1, an air inlet pipe 2 is arranged in the housing 1, a filter element cavity 3 is arranged on the bottom surface of the housing 1, and the filter element cavity 3 is connected to the air inlet pipe 2. Figure 7 As shown, a bottom cover 4 is provided on the bottom surface of the filter element cavity 3, at least one air inlet 5 is provided at the bottom of the front side of the housing 1, and an air supply gap 6 is left between the bottom of the side wall of the filter element cavity 3 and the bottom cover 4, and the air supply gap 6 is connected to the air inlet 5. A filter element matching the filter element cavity 3 is provided in the filter element cavity 3. The air intake pipe 2 is connected to a booster pump, and the air intake pipe 2 and the booster pump belong to the existing technology in the oxygen generator and are not described in detail. Its function is that, through the arrangement of the filter element cavity 3 and the bottom cover 4, the filter element can be easily placed in the filter element cavity 3, and the filter element in the filter element cavity 3 can be taken out by opening the bottom cover 4, which is convenient for replacement and maintenance; through the arrangement of the air supply gap 6 and the air inlet 5, the air can pass through the air inlet 5 and the air supply gap 6 in turn, and then flow into the filter element from the bottom of the side wall of the filter element for filtration.

[0034] Specifically, Figure 2 As shown, the top of the filter element cavity 3 is provided with a vent 7 connected to the air inlet pipe 2. Figure 3As shown, five support ribs 8 extending radially along the vent 7 are arranged around the vent 7 at the top of the filter element cavity 3 near the vent 7. The function is that, through the setting of the position of the vent 7, the air flowing in from the bottom of the side wall of the filter element is filtered from the filter element from bottom to top, enters the vent 7, and then is discharged into the intake pipe 2, so that the gas can have a longer travel path in the filter element, and the filtering effect is good; through the setting of the support ribs 8, a small gap can be left between the filter element and the top surface of the filter element cavity 3, so that the filter element has a tendency to bulge below the bottom surface of the filter element cavity 3, which is convenient for taking out the filter element; through the design of the spatial relationship between the support ribs 8 and the vent 7, when the filter element squeezes the support ribs 8, a path concentrated toward the vent 7 is formed, which plays a role in guiding the airflow in the filter element.

[0035] Specifically, Figure 7 As shown, at least two support bars 9 are arranged on the top surface of the bottom cover 4, and the top surface of the support bars 9 contacts the bottom surface of the side wall of the filter element cavity 3. Its function is that, through the arrangement of the support bars 9, a certain gap can be separated between the filter element and the bottom cover 4, so that the air can flow to the bottom surface of the filter element after passing through the air transmission gap 6 and then enter the filter element.

[0036] Specifically, Figure 4 As shown, the housing 1 is provided with an air guide plate 10 vertically arranged with respect to the bottom surface of the housing 1, the air guide plate 10 corresponds to the air inlet 5, and the side wall of the air guide plate 10 is located in the middle of the air delivery gap 6. Its function is that the airflow entering the housing 1 through the air inlet 5 can be guided to the air delivery gap 6 by the arrangement of the air guide plate 10.

[0037] Specifically, Figure 5 As shown, the filter element cavity 3 is in the shape of a rectangular parallelepiped, with the surface of the filter element cavity 3 facing the front of the shell 1 as the front of the filter element cavity 3, the bottom area of ​​the filter element cavity 3 is larger than the area of ​​the front of the filter element cavity 3, and the area of ​​the front of the filter element cavity 3 is larger than the area of ​​the side of the filter element cavity 3.

[0038] Specifically, Figure 7 As shown, the support bar 9 is vertically arranged on the side of the filter element cavity 3, and the width of the support bar 9 is smaller than the width of the side of the filter element cavity 3. Its function is to enable the airflow to smoothly pass through the air transmission gap 6 and enter the bottom of the filter element through the design of the spatial relationship between the support bar 9 and the filter element cavity 3.

[0039] Specifically, Figure 6 As shown, the housing 1 has an air inlet 5 at the bottom of the front side on both sides of the filter element cavity 3 , and an air delivery gap 6 is provided on the bottom surfaces of the left and right side walls of the filter element cavity 3 .

[0040] Specifically, Figure 7 As shown, a filter screen 11 is provided on the air inlet 5. The function of the filter screen 11 is to filter the gas entering the housing 1 through the air inlet 5.

[0041] Specifically, the bottom cover 4 is threadedly connected to the bottom surface of the housing 1 .

[0042] Specifically, Figure 7 As shown, a waste discharge gap 12 is left between the side wall of the bottom of the housing 1 facing the bottom cover 4 near the gas transmission gap 6 and the bottom cover 4, and a waste discharge ramp 13 is provided on the side wall of the bottom of the housing 1 facing the waste discharge gap 12. The distance between the waste discharge ramp 13 and the bottom cover 4 gradually decreases from top to bottom. Its function is to discharge impurities in the housing 1 through the setting of the waste discharge gap 12, and prevent the impurities in the housing 1 from entering the filter element through the gas transmission gap 6; and to facilitate the impurities in the housing 1 to fall into the waste discharge gap 12 through the waste discharge ramp 13 and then be discharged outside the housing 1.

[0043] The working principle of this embodiment is described as follows; when the filter element is closed in the filter element cavity 3 by the bottom cover 4, the bottom surface of the filter element is propped up by the support bar 9, so that the gas transmission gaps 6 on the left and right sides of the filter element cavity 3 are connected, and the support ribs 8 press the top surface of the filter element downward so that the top surface of the filter element forms a path that is concentrated toward the vent 7;

[0044] The air enters the housing 1 from the air inlet 5 through the filter 11, and then enters the bottom of the filter element through the air supply gap 6. While the airflow passes through the air supply gap 6, the airflow drives the impurities to enter the waste discharge ramp 13. The impurities with larger weight fall out from the waste discharge gap 12 on the waste discharge ramp 13. The airflow passes through the air supply gap 6 and enters the filter element. After being filtered by the filter element, the airflow enters the vent 7.

[0045] Example 2

[0046] The housing 1 has an air inlet 5 at the bottom of the front side on the left and right sides of the filter element cavity 3 , respectively. An air delivery gap 6 is provided on the bottom surfaces of the left and right side walls of the filter element cavity 3 .

[0047] like Figure 8As shown, the top of the filter element cavity 3 is provided with a vent 7 connected to the air inlet pipe 2, and at least two support ribs 8 are provided near the vent 7 at the top of the filter element cavity 3. The support ribs 8 are arranged perpendicularly to the side wall where the air supply gap 6 is located. There are four support ribs 8 in total, and the four support ribs 8 are divided into two groups, each two in a group, and are symmetrically arranged on the left and right sides of the vent 7. Its function is that, through the setting of the position of the vent 7, the air flowing in from the bottom of the side wall of the filter element is filtered from the filter element from bottom to top, and then enters the vent 7 and is discharged into the air inlet pipe 2, so that the gas can have a longer travel path in the filter element, and the filtering effect is good; through the setting of the support ribs 8, a small gap can be left between the filter element and the top surface of the filter element cavity 3, so that the filter element has a tendency to bulge below the bottom surface of the filter element cavity 3, which is convenient for removing the filter element; through the design of the spatial relationship between the support ribs 8 and the vent 7, the air flow from the air supply gap 6 to the filter element cavity 3 can be more smoothly inlet, which plays a role in guiding the air flow in the filter element.

[0048] The rest of the structure and working principle are the same as those of Example 1.

[0049] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. An oxygen concentrator with a filter element cavity, comprising a housing (1), an air inlet pipe (2) being arranged in the housing (1), characterized in that: The housing (1) is provided with a filter element cavity (3) on the bottom surface, the filter element cavity (3) is connected to the air inlet pipe (2), a bottom cover (4) is provided on the bottom surface of the filter element cavity (3), at least one air inlet (5) is provided at the bottom of the front surface of the housing (1), an air transmission gap (6) is left between the bottom of the side wall of the filter element cavity (3) and the bottom cover (4), and the air transmission gap (6) is connected to the air inlet (5).

2. An oxygen concentrator with a filter element cavity according to claim 1, characterized in that: The top of the filter element cavity (3) is provided with a vent (7) connected to the air inlet pipe (2), and at least two supporting ribs (8) are provided near the vent (7) at the top of the filter element cavity (3).

3. An oxygen concentrator with a filter element cavity according to claim 2, characterized in that: At least two support bars (9) are provided on the top surface of the bottom cover (4), and the top surfaces of the support bars (9) are in contact with the bottom surface of the side wall of the filter element cavity (3).

4. The oxygen concentrator with a filter element chamber according to claim 3, characterized in that: The shell (1) is provided with an air guide plate (10) vertically arranged on the bottom surface of the shell (1); the air guide plate (10) corresponds to the air inlet (5); and the side wall of the air guide plate (10) is located in the middle of the air transmission gap (6).

5. The oxygen concentrator with a filter element cavity according to claim 4, characterized in that: The filter element cavity (3) is in the shape of a rectangular parallelepiped, with the surface of the filter element cavity (3) facing the front of the housing (1) being the front of the filter element cavity (3), the bottom surface area of ​​the filter element cavity (3) being larger than the area of ​​the front of the filter element cavity (3), and the front surface area of ​​the filter element cavity (3) being larger than the side surface area of ​​the filter element cavity (3).

6. The oxygen concentrator with a filter element chamber according to claim 5, characterized in that: The support bar (9) is arranged perpendicularly to the side surface of the filter element cavity (3), and the width of the support bar (9) is smaller than the width of the side surface of the filter element cavity (3).

7. The oxygen concentrator with a filter element chamber according to claim 5, characterized in that: The housing (1) has an air inlet (5) at the bottom of the front side on the left and right sides of the filter element cavity (3), respectively, and an air delivery gap (6) is provided on the bottom surfaces of the left and right side walls of the filter element cavity (3).

8. The oxygen concentrator with a filter element chamber according to claim 1, characterized in that: A filter screen (11) is provided on the air inlet (5).

9. The oxygen concentrator with a filter element cavity according to claim 1, characterized in that: The bottom cover (4) is threadedly connected to the bottom surface of the shell (1).

10. The oxygen concentrator with a filter element chamber according to claim 1, characterized in that: A waste discharge gap (12) is left between the side wall of the bottom of the shell (1) facing the bottom cover (4) adjacent to the gas transmission gap (6) and the bottom cover (4), and a waste discharge ramp (13) is provided on the side wall of the bottom of the shell (1) facing the waste discharge gap (12).

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