Portable filter element replacement device of oxygen generator

Abstract

The utility model belongs to the technical field of filter element replacement devices, and particularly relates to a portable filter element replacement device for an oxygen generator, which comprises an oxygen generator body, through the arrangement of the positioning mechanism, the filter element box can be conveniently and rapidly disassembled, assembled and positioned, air needed by oxygen generation of the oxygen generator body is purified through the filter element body, when the filter element body needs to be replaced, a sealing block can be pushed upwards, a finger stretches into a stirring groove, and the filter box is pulled out through a stirring belt in the stirring groove; the filter element body can be taken out of the filter element box and replaced, a new filter element body is plugged into the filter element box, after replacement is completed, the sealing block can be pushed upwards, the replacement groove is exposed, and the filter element box is pushed back into the oxygen generator body through the replacement groove till one end of the filter element box abuts against the inner side wall of the oxygen generator. At the moment, one end of the positioning block is inserted into the clamping groove to limit movement of the filter element box, the replacement process is simple and convenient, the replacement efficiency is guaranteed, and the filter element box does not need to be fixed through bolts.

Description

Technical Field

[0001] This utility model belongs to the field of replacement device technology, specifically a convenient filter replacement device for oxygen concentrators. Background Technology

[0002] An oxygen concentrator is a machine that produces oxygen. After long-term use, the filter inside the oxygen concentrator tends to absorb a lot of impurities and bacteria, resulting in oxygen containing a lot of bacteria. It is not convenient to use directly and the filter needs to be removed, replaced and cleaned regularly.

[0003] Existing oxygen generators mainly consist of an outer shell, inside which an adsorption cylinder is installed. Filter elements are installed on the left and right side walls near the bottom of the adsorption cylinder by multiple bolts. Together with other air intake, exhaust, and filtration components inside the adsorption cylinder, the gas is filtered and purified.

[0004] However, when it is necessary to disassemble, replace, or install the filter element, the bolts need to be removed or installed, which is a cumbersome operation and affects the use of the oxygen concentrator. Therefore, a convenient filter element replacement device for oxygen concentrators is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and solve the problem that the removal and installation of filter elements requires the disassembly or fixing of bolts, which is cumbersome and affects the use of oxygen concentrators, a convenient filter element replacement device for oxygen concentrators is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The present utility model provides a convenient filter replacement device for an oxygen concentrator, including an oxygen concentrator body; a replacement groove is provided on one side of the oxygen concentrator body, a filter cartridge is slidably connected inside the oxygen concentrator body, slots are provided at the top and bottom of the filter cartridge, a filter cartridge body is provided inside the filter cartridge, and a support block is fixedly connected to the inner side wall of the oxygen concentrator body;

[0007] The oxygen concentrator body is equipped with a positioning mechanism, which includes a positioning groove inside the oxygen concentrator body. A fixing rod is fixedly connected to the inner wall of the positioning groove, and a slider is slidably connected to the outer wall of the fixing rod. One end of the slider is elastically connected to the inner wall of the positioning groove via a spring. One end of the slider extends out of the positioning groove and is fixedly connected to a positioning block. One end of the positioning block is inserted into a slot. A through groove communicating with the positioning groove is opened on one side of the outer wall of the oxygen concentrator body. A toggle block is fixedly connected to the side of the slider away from the positioning block. One end of the toggle block extends out of the through groove and is fixedly connected to a sealing block. The positioning mechanism facilitates quick and easy disassembly and positioning of the filter cartridge.

[0008] Preferably, a pressing groove is provided on one side of the filter cartridge box, and a pressing block is slidably connected in the pressing groove. One end of the pressing block extends out of the pressing groove, and the other end of the pressing block extends out of the pressing groove and is fixedly connected to a limiting block. By setting up the pressing block, the pressing groove, and the limiting block, the filter body can be easily taken out and put into the filter cartridge box, and the pressing and positioning of the filter body can be strengthened after the filter body is replaced, thereby enhancing the sealing performance and ensuring the air filtration effect.

[0009] Preferably, a first magnetic block is fixedly connected to the inner wall of the oxygen generator body, and a second magnetic block is fixedly connected to the side of the pressing block near the first magnetic block. By setting the first magnetic block and the second magnetic block, the filter cartridge can be automatically popped out after the limit on the filter cartridge is released, simplifying the operation steps and further improving the convenience of replacing the filter cartridge body.

[0010] Preferably, the inner bottom wall of the filter cartridge box is provided with a guide groove, and a guide block is slidably connected in the guide groove. One end of the guide block extends out of the guide groove and is fixedly connected to the pressing block. By setting the guide block and the guide groove, it is convenient to move and limit the limiting block and the pressing block, so as to prevent the pressing block and the limiting block from detaching from the filter cartridge box when the filter cartridge box is removed to replace the filter cartridge body.

[0011] Preferably, the inner wall of the oxygen generator body is fixedly connected to a guide plate by a connecting block. The guide plate is set in a trapezoidal shape that is wider at the top and narrower at the bottom. A through groove is opened at the top of the guide plate. The guide plate is used to guide the air filtered by the filter body. At the same time, a sealing gasket is provided at the abutment point between the guide plate and the filter box to prevent gas leakage due to poor sealing effect of the sealing block.

[0012] Preferably, an air pump is installed on the inner bottom wall of the oxygen concentrator body. The air inlet of the air pump is equipped with a filter screen, and the air outlet of the air pump is opposite to the air inlet of the filter cartridge. Air is drawn into the oxygen concentrator by the air pump and is initially filtered by the filter screen to prevent impurities from entering.

[0013] Preferably, a sealing gasket is provided on the side of the sealing block near the oxygen generator body, and a sealing ring is provided on the inner wall of the replacement groove. By providing a sealing gasket on the side of the sealing block near the oxygen generator body and a sealing ring on the inner wall of the replacement groove, the sealing performance is improved.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model provides a convenient filter replacement device for an oxygen concentrator. The positioning mechanism facilitates quick and easy disassembly and positioning of the filter cartridge. The filter cartridge purifies the air needed for oxygen production in the oxygen concentrator. When the filter cartridge needs replacement, the sealing block is pushed up, and a finger is inserted into the actuating groove. The filter cartridge is then pulled out using the actuating strap inside, allowing the filter cartridge to be removed and replaced. A new filter cartridge is inserted into the filter cartridge. After replacement, the sealing block is pushed up, exposing the replacement groove. The filter cartridge is then pushed back into the oxygen concentrator until one end of the cartridge abuts against the inner wall of the oxygen concentrator. One end of the positioning block is inserted into the slot to limit the movement of the filter cartridge. The replacement process is simple and convenient, ensuring high efficiency, and eliminates the need for bolts to secure the filter cartridge.

[0016] 2. This utility model provides a convenient filter replacement device for an oxygen concentrator. Through the design of a pressing block, a pressing groove, and a limiting block, the filter body can be easily removed from and inserted into the filter cartridge box. It also facilitates enhanced pressure and positioning of the filter body after replacement, improving sealing and ensuring effective air filtration. Specifically, when the filter cartridge box is returned to the oxygen concentrator body after replacement, the pressing block contacts the inner wall of the oxygen concentrator body first and moves towards the replaced filter body under pressure, thus ensuring effective air filtration. The limiting block adheres to the filter element body and applies pressure to it, ensuring sufficient pressure and a tight seal against the inner wall of the filter cartridge. This prevents the filter element body from shifting within the cartridge. When removing the cartridge, the limiting block can be pushed to create a distance and space between it and the filter element body, allowing for slight movement of the filter element body within the cartridge. This facilitates easy finger placement and removal of the filter element body, preventing it from excessively adhering to the inner wall of the cartridge to maintain a tight seal, which would otherwise hinder removal. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is one of the cross-sectional structural diagrams of the oxygen generator body and filter cartridge in this utility model;

[0020] Figure 3 This is the second cross-sectional structural diagram of the oxygen generator body and filter cartridge in this utility model;

[0021] Figure 4 This is the third cross-sectional structural diagram of the oxygen generator body and filter cartridge in this utility model;

[0022] Figure 5 This is the fourth cross-sectional structural diagram of the oxygen generator body and filter cartridge in this utility model;

[0023] Legend:

[0024] 1. Oxygen concentrator body; 2. Filter cartridge box; 3. Slot; 4. Support block; 5. Filter cartridge body; 6. Positioning mechanism; 61. Fixing rod; 62. Sliding block; 63. Positioning block; 64. Actuating block; 65. Sealing block; 7. Pressing block; 8. Limiting block; 9. First magnetic block; 10. Second magnetic block; 11. Guide groove; 12. Guide plate; 13. Air pump. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figures 1-5 This utility model provides a convenient filter replacement device for an oxygen concentrator, including an oxygen concentrator body 1; a replacement groove is provided on one side of the oxygen concentrator body 1, a filter cartridge 2 is slidably connected inside the oxygen concentrator body 1, and slots 3 are provided on the top and bottom of the filter cartridge 2. A filter cartridge body 5 is provided inside the filter cartridge 2, and a support block 4 is fixedly connected to the inner side wall of the oxygen concentrator body 1. That is, the filter cartridge body 5 is used to purify the air required for oxygen production in the oxygen concentrator body 1. Specifically, the air pump inside the oxygen concentrator draws outside air into the oxygen concentrator through the air inlet on the outer wall of the oxygen concentrator body 1 and enters the filter cartridge 2 through the air inlet of the filter cartridge 2 and is filtered by the filter cartridge body 5. The filtered air is discharged through the air outlet.

[0028] During operation, the oxygen generating components and supply pipes in the oxygen concentrator are all based on current mature technologies, so they are not shown in detail in the diagram. The main body consists of filter cartridge 2 and filter body 5. Filter cartridge 2 is a box with an opening on one side. A sliding groove for pulling the filter cartridge is opened on one side of the filter cartridge. A sliding band is fixedly connected to the inner wall of the sliding groove. Filter body 5 is a square filter plate, which is existing technology, so it will not be described in detail. The top and bottom of filter cartridge 2 are respectively provided with an air outlet and an air inlet.

[0029] Furthermore, such as Figure 2 and Figure 3As shown, a guide groove 11 is provided on the inner bottom wall of the filter cartridge 2. A guide block is slidably connected in the guide groove 11, and one end of the guide block extends out of the guide groove 11 and is fixedly connected to the pressing block 7. During operation, the guide block and the guide groove 11 facilitate the movement and limiting of the limiting block 8 and the pressing block 7, preventing the pressing block 7 and the limiting block 8 from detaching from the filter cartridge 2 when the filter cartridge body 5 is replaced.

[0030] Furthermore, such as Figure 2 and Figure 5 As shown, a guide plate 12 is fixedly connected to the inner wall of the oxygen concentrator body 1 via a connecting block. The guide plate 12 is trapezoidal in shape, wider at the top and narrower at the bottom, and has a through groove at its top. During operation, the guide plate 12 guides the air filtered by the filter body 5. The bottom end of the guide plate 12 abuts against the air outlet of the filter box 2 to prevent gas leakage due to poor sealing of the sealing block 65. A sealing gasket is also provided at the point where the bottom end of the guide plate 12 abuts against the air outlet at the top of the filter box 2 to improve sealing.

[0031] Furthermore, such as Figure 2 and Figure 5 As shown, an air pump 13 is installed on the inner bottom wall of the oxygen concentrator body. A filter screen is installed at the air inlet end of the air pump 13, and the air outlet end of the air pump 13 is opposite to the air inlet end of the filter cartridge 2. During operation, air is drawn into the oxygen concentrator by the air pump 13 and preliminarily filtered through the filter screen to prevent impurities from entering. A tight seal is provided between the air outlet end of the air pump 13 and the air inlet end of the filter cartridge 2.

[0032] The oxygen concentrator body 1 is provided with a positioning mechanism 6. The positioning mechanism 6 includes a positioning groove opened in the oxygen concentrator body 1. A fixing rod 61 is fixedly connected to the inner side wall of the positioning groove. A slider 62 is slidably connected to the outer wall of the fixing rod 61. One end of the slider 62 is elastically connected to the inner side wall of the positioning groove through a spring. One end of the slider 62 extends out of the positioning groove and is fixedly connected to a positioning block 63. One end of the positioning block 63 is inserted into the slot 3.

[0033] A through groove connected to the positioning groove is provided on one side of the outer wall of the oxygen generator body 1. A toggle block 64 is fixedly connected to the side of the slider 62 away from the positioning block 63. One end of the toggle block 64 extends out of the through groove and is fixedly connected to a sealing block 65.

[0034] The positioning mechanism 6 facilitates quick and easy disassembly and positioning of the filter cartridge 2. When the filter cartridge body 5 needs to be replaced, the sealing block 65 can be pushed up to expose the replacement groove, and the slider 62 can be moved by the actuating block 64. The slider 62 moves the positioning block 63 and causes one end of the positioning block 63 located in the slot 3 to move out, releasing the restriction on the filter cartridge 2. Then, by inserting a finger into the actuating groove and pulling out the filter cartridge through the actuating band inside, the filter cartridge body 5 can be taken out of the filter cartridge 2 and replaced.

[0035] The new filter cartridge body 5 is inserted into the filter cartridge box 2. At this time, the sealing block 65 descends under the pressure of the spring to seal the replacement slot, so as to prevent dust and debris from entering the oxygen concentrator body 1 through the replacement slot during the replacement process. After the replacement is completed, the sealing block 65 can be pushed up to expose the replacement slot, and the filter cartridge box 2 can be pushed back into the oxygen concentrator body 1 through the replacement slot until one end of the filter cartridge box 2 abuts against the inner wall of the oxygen concentrator. At this time, the slot 3 is aligned with the positioning block 63. Under the pressure of the spring, one end of the positioning block 63 is inserted into the slot 3 to limit the movement of the filter cartridge box 2. The replacement process is simple and convenient, ensuring replacement efficiency, and there is no need to fix the filter cartridge box 2 with bolts. The support block 4 supports and limits the filter cartridge box 2. The support block 4 is L-shaped. The filter cartridge 2 slides on two sets of support blocks 4 that are symmetrical with respect to the filter cartridge box 2. The slider 62 is limited by the fixing rod 61.

[0036] Furthermore, such as Figure 2 and Figure 3 As shown, a pressing groove is provided on one side of the filter cartridge 2, and a pressing block 7 is slidably connected in the pressing groove. One end of the pressing block 7 extends out of the pressing groove, and the other end of the pressing block 7 extends out of the pressing groove and is fixedly connected to a limit block 8.

[0037] During operation, the design of the pressing block 7, pressing groove, and limiting block 8 facilitates the removal and insertion of the filter element body 5 from the filter element box 2. It also enhances the pressing and positioning of the filter element body 5 after replacement, improving sealing and ensuring effective air filtration. Specifically, when the filter element body 5 is replaced and the filter element box 2 is returned to the oxygen concentrator body 1, the pressing block 7 first contacts the inner wall of the oxygen concentrator body 1 and moves towards the replaced filter element body 5 under pressure. This causes the limiting block 8 to conform to the filter element body 5 and effectively filter the filter. The filter element body 5 is pressurized so that it fits tightly against the inner wall of the filter element box 2, preventing it from moving inside the box. When the filter element box 2 is removed, the limiting block 8 can be pushed to create a certain distance and space between it and the filter element body 5, allowing it to move slightly within the box. This makes it easier for users to insert their fingers into the box to remove and place the filter element body 5, preventing it from fitting too tightly against the inner wall of the box to ensure a seal, which would make it difficult to remove.

[0038] Furthermore, such as Figure 2 and Figure 3 As shown, a first magnetic block 9 is fixedly connected to the inner wall of the oxygen concentrator body 1, and a second magnetic block 10 is fixedly connected to the side of the pressing block 7 near the first magnetic block 9. During operation, the arrangement of the first magnetic block 9 and the second magnetic block 10 facilitates the automatic pop-out of the filter cartridge 2 after the limiting position on it is released, simplifying the operation steps and further improving the convenience of replacing the filter body 5. The opposite sides of the first magnetic block 9 and the second magnetic block 10 are set to be of the same level. There is a repulsive force between the magnetic blocks of the same level, that is, they will push each other away. Under this force, when the limiting position on the filter cartridge 2 is released, the first magnetic block 9, through the repulsive force between it and the second magnetic block 10, and through the cooperation of the second magnetic block 10 and the limiting block 8 that is attached to the filter body 5, automatically pops out one end of the filter body 5 located in the replacement slot, so as to facilitate the removal of the filter cartridge 2 and strengthen the pressing and positioning of the filter body 5 by the limiting block 8.

[0039] Furthermore, such as Figure 2 As shown, a sealing gasket is provided on the side of the sealing block 65 near the oxygen generator body 1, and a sealing ring is provided on the inner wall of the replacement slot. During operation, the sealing performance is improved by providing a sealing gasket on the side of the sealing block 65 near the oxygen generator body 1 and a sealing ring on the inner wall of the replacement slot.

[0040] Working principle: The air pump inside the oxygen concentrator draws outside air into the oxygen concentrator through the air inlet on the outer wall of the oxygen concentrator body 1. The air then enters the filter cartridge 2 through the air inlet and is filtered by the filter body 5. The filtered air is discharged through the air outlet. When the filter body 5 needs to be replaced, the sealing block 65 is pushed up to expose the replacement slot. At the same time, the actuating block 64 moves the slider 62. The slider 62 moves the positioning block 63, causing one end of the positioning block 63 in the slot 3 to move out, releasing the restriction on the filter cartridge 2. The filter body 5 can then be removed from the filter cartridge 2 by inserting a finger into the actuating slot and pulling out the filter cartridge through the actuating strap. The filter cartridge 5 is inserted into the filter cartridge box 2 and replaced. At this time, the sealing block 65 descends under the pressure of the spring to seal the replacement groove, so as to prevent dust and debris from entering the oxygen concentrator body 1 through the replacement groove during the replacement process. After the replacement is completed, the sealing block 65 can be pushed up to expose the replacement groove, and the filter cartridge box 2 can be pushed back into the oxygen concentrator body 1 through the replacement groove until one end of the filter cartridge box 2 abuts against the inner wall of the oxygen concentrator. At this time, the slot 3 is aligned with the positioning block 63. Under the pressure of the spring, one end of the positioning block 63 is inserted into the slot 3 to limit the movement of the filter cartridge box 2. The replacement process is simple and convenient, ensuring replacement efficiency, and there is no need to fix the filter cartridge box 2 with bolts.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A convenient filter replacement device for an oxygen concentrator, characterized in that: Includes an oxygen concentrator body (1); a replacement slot is provided on one side of the oxygen concentrator body (1), a filter cartridge (2) is slidably connected inside the oxygen concentrator body (1), slots (3) are provided on the top and bottom of the filter cartridge (2), a filter cartridge body (5) is provided inside the filter cartridge (2), and a support block (4) is fixedly connected to the inner side wall of the oxygen concentrator body (1). The oxygen generator body (1) is provided with a positioning mechanism (6). The positioning mechanism (6) includes a positioning groove opened in the oxygen generator body (1). A fixing rod (61) is fixedly connected to the inner side wall of the positioning groove. A slider (62) is slidably connected to the outer wall of the fixing rod (61). One end of the slider (62) is elastically connected to the inner side wall of the positioning groove through a spring. One end of the slider (62) extends out of the positioning groove and is fixedly connected to a positioning block (63). One end of the positioning block (63) is inserted into a slot (3). A through groove connected to the positioning groove is opened on one side of the outer wall of the oxygen generator body (1). A toggle block (64) is fixedly connected to the side of the slider (62) away from the positioning block (63). One end of the toggle block (64) extends out of the through groove and is fixedly connected to a sealing block (65).

2. The convenient filter replacement device for an oxygen concentrator according to claim 1, characterized in that: The filter cartridge (2) has a pressing groove on one side, and a pressing block (7) is slidably connected in the pressing groove. One end of the pressing block (7) extends out of the pressing groove, and the other end of the pressing block (7) extends out of the pressing groove and is fixedly connected to a limit block (8).

3. The convenient filter replacement device for an oxygen concentrator according to claim 2, characterized in that: The inner wall of the oxygen generator body (1) is fixedly connected to a first magnetic block (9), and the side of the pressing block (7) near the first magnetic block (9) is fixedly connected to a second magnetic block (10).

4. The convenient filter replacement device for an oxygen concentrator according to claim 3, characterized in that: The inner bottom wall of the filter cartridge (2) is provided with a guide groove (11), and a guide block is slidably connected in the guide groove (11). One end of the guide block extends out of the guide groove (11) and is fixedly connected to the pressing block (7).

5. A convenient filter replacement device for an oxygen concentrator according to claim 4, characterized in that: The inner sidewall of the oxygen generator body (1) is fixedly connected to a guide plate (12) by a connecting block. The guide plate (12) is set as a trapezoid with a wider top and a narrower bottom, and a through groove is opened at the top of the guide plate (12).

6. The convenient filter replacement device for an oxygen concentrator according to claim 5, characterized in that: An air pump (13) is installed on the inner bottom wall of the oxygen generator body (1). The air inlet of the air pump (13) is equipped with a filter screen, and the air outlet of the air pump (13) is opposite to the filter cartridge (2).

7. A convenient filter replacement device for an oxygen concentrator according to claim 6, characterized in that: The sealing block (65) has a sealing gasket on one side near the oxygen generator body (1), and the inner wall of the replacement slot has a sealing ring.

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