Filter convenient to replace and oxygen generator using same

Abstract

According to the filter convenient to replace and the oxygen generator using the filter, the filter is arranged on a base of the oxygen generator, and the filter comprises a filter box, a filter cover and filter cotton; a box opening of the filter box is fixedly connected with a mounting hole formed in the base in a penetrating manner, and a box body of the filter box extends into the case above the base and is connected with an air inlet pipe and a compressor air inlet pipe; the filter cover is assembled with the box opening, a sealing cavity is formed in the filter cover, the filter cotton is arranged in the sealing cavity and supported by the supporting structure so as to divide the sealing cavity into an upper cavity and a lower cavity, and the two cavities are communicated with the air inlet pipe and the compressor air inlet pipe respectively; the oxygen generator comprises the filter and a battery shell. The filter box is inversely arranged on the base of the oxygen generator, the filter cover and the filter cotton are arranged in the filter box from the lower part of the base, the filter cotton can be replaced only by opening the filter cover from the lower part of the base, the filter cover and a complex structure in the case above the base do not influence each other, the operation is convenient, and the oxygen generator is not easy to damage.

Description

Technical Field

[0001] This utility model relates to the technical field of oxygen concentrator accessories, specifically to an easy-to-replace filter and an oxygen concentrator using the same. Background Technology

[0002] An oxygen concentrator is a machine that produces oxygen. It uses PSA (Pressure Swing Adsorption) technology, powered by a compressor, to separate nitrogen from the air through the adsorption properties of molecular sieves, extracting high-purity oxygen. The filter is a key component of the oxygen concentrator, using filter cotton to remove dust and impurities from the air. To extend the machine's lifespan, users need to open the filter cover and regularly clean or replace the internal filter cotton.

[0003] Currently, oxygen concentrators on the market have their filters, compressors, adsorption towers, and other components all housed inside the casing. The filters are connected to the air inlet and compressor on the casing via pipes, which makes the internal structure of the casing complex. Replacing the filter cotton in the filters is more troublesome and can also affect the sealing of the pipes.

[0004] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0005] The purpose of this invention is to provide a filter that is easy to replace and an oxygen generator that uses it.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a filter that is easy to replace. The filter is installed on the base of an oxygen concentrator and includes a filter box, a filter cover, and filter cotton.

[0008] The opening of the filter box is fixedly connected to the mounting hole that passes through the base, and the body of the filter box extends into the chassis above the base and is connected to the air intake pipe and the compressor intake pipe.

[0009] The filter cover is assembled with the box opening to form a sealed cavity inside. The filter cotton is placed in the sealed cavity and supported by a support structure to divide the sealed cavity into upper and lower chambers. The two chambers are respectively connected to the air intake pipe and the compressor intake pipe.

[0010] Preferably, the support structure includes an upper support rib and a lower support rib, the upper support rib being integrally formed on the bottom of the filter box, and the lower support rib being integrally formed on the back of the filter cover.

[0011] Preferably, the box opening and the filter mounting hole are fitted together and bonded together.

[0012] Preferably, the filter cover is made transparent.

[0013] Preferably, the edge of the filter cover is provided with a sealing ring, which is interference-fitted with the opening of the box.

[0014] More preferably, the filter cover has a handle on the front, which is integrally formed with the sealing ring and is made of elastic soft rubber.

[0015] More preferably, the handle is shaped like a sheet and is parallel to the cover surface of the filter cover.

[0016] Preferably, both the sealing ring and the handle are made of elastic soft rubber.

[0017] In another aspect, this utility model also provides an oxygen generator, which further includes a battery housing located below the base and slidably connected to the base.

[0018] The working principle and advantages of this utility model are as follows:

[0019] This invention involves inverting the filter box onto the oxygen concentrator base, with the filter cover and filter cotton inserted into the filter box from below the base. When replacing the filter cotton, it is only necessary to open the filter cover from below the base. This design does not interfere with the complex structure inside the machine housing above the base, making it convenient to operate and less likely to damage the oxygen concentrator.

[0020] The filter cover of this utility model is made transparent, so users can quickly find the location of the filter cover and can also see the usage of the internal filter cotton intuitively, without the need for additional markings.

[0021] This utility model features a sealing ring on the edge of the filter cover, achieving static friction fixation between the filter cover and the filter box. The filter cover can be opened and closed without tools, and the filter cotton is easy to install and replace. Furthermore, the sealing ring seals the inner cavity between the filter cover and the filter box, thereby reducing the noise of the oxygen concentrator.

[0022] The handle and sealing ring on the filter cover of this utility model are integrally formed, which is not easy to scratch the skin or the machine, making it safe and reliable to use, and also simplifies the processing and assembly process of the handle, sealing ring and filter cover. Attached Figure Description

[0023] Appendix Figure 1 This is a top axonometric view of the filter according to an embodiment of the present invention;

[0024] Appendix Figure 2 This is a bottom view of the filter according to an embodiment of the present invention;

[0025] Appendix Figure 3 This is a schematic diagram of the assembly of the filter, base, and battery housing according to an embodiment of the present invention;

[0026] Appendix Figure 4 This is a cross-sectional view of the filter installed on the base according to an embodiment of the present invention;

[0027] Appendix Figure 5 This is a schematic diagram of the base structure according to an embodiment of the present utility model;

[0028] Appendix Figure 6 This is a schematic diagram of the filter box structure according to an embodiment of the present utility model;

[0029] Appendix Figure 7 This is a schematic diagram of the filter cover structure according to an embodiment of the present utility model.

[0030] In the attached diagrams above:

[0031] 1 filter;

[0032] 11 filter boxes;

[0033] 111 Air Inlet;

[0034] 112 Gas outlet;

[0035] 12 filter caps;

[0036] 13. Filter cotton;

[0037] 14. Sealing rings;

[0038] 15 handles;

[0039] 2 bases;

[0040] 21 mounting holes;

[0041] 22 slide rails;

[0042] 3. Air intake pipe;

[0043] 4. Compressor intake pipe;

[0044] 5. Supporting structure;

[0045] 51. Upper support rib plate;

[0046] 52. Lower support ribs;

[0047] 6. Battery casing;

[0048] 61. Slide groove. Detailed Implementation

[0049] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0050] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0051] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0052] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0053] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0054] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.

[0055] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0056] See attached Figure 1-7 A replaceable filter, wherein the filter 1 is mounted on the base 2 of the oxygen generator, and the filter 1 includes a filter box 11, a filter cover 12 and filter cotton 13.

[0057] The opening of the filter box 11 is fixedly connected to the mounting hole 21 that is opened through the base 2. Specifically, the opening of the box and the mounting hole 21 of the filter 1 are fixed together by a stop fit and adhesive bonding.

[0058] The filter box 11 extends into the chassis above the base 2 and is connected to the air intake pipe 3 and the compressor intake pipe 4.

[0059] The filter cover 12 is assembled with the box opening to form a sealed cavity inside. The filter cotton 13 is placed in the sealed cavity and supported by the support structure 5 to divide the sealed cavity into upper and lower cavities. The two cavities are respectively connected to the air intake pipe 3 and the compressor intake pipe 4.

[0060] In this embodiment, the support structure 5 includes an upper support rib 51 and a lower support rib 52. The upper support rib 51 is integrally formed on the bottom of the filter box 11, and the lower support rib 52 is integrally formed on the back of the filter cover 12. The filter cotton 13 is sandwiched between the upper support rib 51 and the lower support rib 52. Figure 4 .

[0061] In this embodiment, the upper cavity inner wall of the sealed cavity is provided with two air inlets 111, and two air intake connectors are glued and fixed to the outer wall of the box corresponding to the two air inlets 111. The two air intake connectors are connected to two air intake pipes 3, and the two air intake pipes 3 are connected to two air inlets on the top of the chassis. The lower cavity inner wall of the sealed cavity is provided with two gas outlets 112, and two compressor air intake connectors are glued and fixed to the outer walls of the two sides of the box corresponding to the two gas outlets 112. The two compressor air intake connectors are connected to two compressor air intake pipes 4, and the compressor air intake pipes 4 are connected to the compressor.

[0062] When the compressor is running, it draws outside air into the filter box 11 through the air intake pipe 3. After being effectively filtered by the built-in filter cotton 13, the clean air then enters the compressor through the compressor intake pipe 4.

[0063] In this embodiment, the compressor is located directly above the filter 1, and the air inlet is located at the top of the chassis (not shown in the figure). Two air intake pipes 3 are arranged side by side vertically on the rear side of the filter box 11 and connected to the air inlet above. Two compressor intake pipes 4 are arranged vertically on both sides of the filter box 11 and connected to the two air inlets on both sides of the compressor. The intake pipes are vertically distributed, making them less prone to damage. In other embodiments, the positions of the air intake pipes 3 and the compressor intake pipes 4 may vary depending on the internal structural layout of the chassis.

[0064] For ease of observation, the filter cover 12 is made transparent. Users can directly see the inside through the filter cover 12 without having to rely on markings to locate the position for replacing the filter cotton 13.

[0065] The edge of the filter cover 12 is provided with a sealing ring 14, which is interference-fitted with the opening of the box. The sealing ring 14 seals the gap between the filter cover 12 and the filter box 11, and the formed sealed cavity can reduce the noise of the oxygen generator.

[0066] The filter cover 12 has a handle 15 on the front. When installing or removing the filter cotton 13, the filter 1 can be opened by simply pulling the handle 15 without the need for tools, making it convenient to use.

[0067] The handle 15 and the sealing ring 14 are integrally formed and both are made of elastic soft rubber; the sealing ring 14 made of elastic soft rubber is fixed in contact with the inner wall of the filter box 11 by static friction and is not easy to fall off; the handle 15 made of elastic soft rubber is not easy to scratch the skin or the machine, and is safe and reliable to use.

[0068] The handle 15 is designed as a sheet, which is parallel to the cover surface of the filter cover 12. This design ensures that the handle 15 does not occupy the lower space of the base 2, nor does it obstruct the sliding installation of the battery housing 6 below the base 2.

[0069] When installing filter 1, first align the opening of filter box 11 with the mounting hole 21 on base 2. The opening of the box and the mounting hole 21 are engaged by a male and female stop. Adhesive can be applied to the opening of the box and the mounting hole 21. The two are engaged and fixed and sealed by the adhesive.

[0070] To remove the filter cotton 13, pinch the handle 15 and pull out the filter cover 12. Then, the filter cotton 13 inside the filter box 11 can be removed. To install the filter cotton 13, first place it flat inside the filter box 11, then insert the filter cover 12 into the filter box 11 and press it in place. This filter 1 is especially suitable for use in outdoor oxygen concentrators, and the filter cotton can be cleaned at any time.

[0071] An oxygen generator, the oxygen generator further comprising a battery housing 6 located below the base 2 and slidably connected to the base 2.

[0072] In this embodiment, the battery casing 6 slides horizontally along the length direction of the base 2, that is, it slides in the left and right direction. Figure 3 In other embodiments, when the filter 1 has a different structural layout, the battery housing 6 can also slide horizontally along the width direction of the base 2, that is, slide in the front-to-back direction.

[0073] In this embodiment, the battery casing 6 and the base 2 are slidably connected by a slide rail 22 and a slide groove 61, and can also be fixed by a latch. The base 2 is provided with a slide rail 22, which is arranged on the front and rear sides of the mounting hole 21. The slide groove 61 on the battery casing 6 is slidably engaged with the slide rail 22.

[0074] When replacing the filter cotton 13, first unlock the battery housing 6 latch, then pull the battery housing 6 to the side, and finally remove the filter cover 12 to perform the replacement operation.

[0075] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A filter that is easy to replace, characterized in that: The filter is located on the base of the oxygen generator, and the filter includes a filter box, a filter cover, and filter cotton. The opening of the filter box is fixedly connected to the mounting hole that passes through the base, and the body of the filter box extends into the chassis above the base and is connected to the air intake pipe and the compressor intake pipe. The filter cover is assembled with the box opening to form a sealed cavity inside. The filter cotton is placed in the sealed cavity and supported by a support structure to divide the sealed cavity into upper and lower chambers. The two chambers are respectively connected to the air intake pipe and the compressor intake pipe.

2. The filter that is easy to replace according to claim 1, characterized in that: The support structure includes an upper support rib and a lower support rib. The upper support rib is integrally formed on the bottom of the filter box, and the lower support rib is integrally formed on the back of the filter cover.

3. The filter that is easy to replace according to claim 1, characterized in that: The box opening and the filter mounting hole are fitted together and glued to form a single unit.

4. The filter that is easy to replace according to claim 1, characterized in that: The filter cover is made transparent.

5. The filter that is easy to replace according to claim 1, characterized in that: The filter cover is provided with a sealing ring on its edge, which is interference-fitted with the opening of the box.

6. The filter that is easy to replace according to claim 5, characterized in that: The filter cover has a handle on the front, which is integrally formed with the sealing ring and is made of elastic soft rubber.

7. A replaceable filter according to claim 6, characterized in that: The handle is plate-shaped and parallel to the cover surface of the filter cover.

8. An oxygen generator, characterized in that: Including the filter as described in any one of claims 1-7, the oxygen generator further includes a battery housing located below the base and slidably connected to the base.

Images