CN220003371U - Gas filtering device for oxygenerator - Google Patents

Abstract

The utility model discloses a gas filtering device for an oxygenerator, which comprises a filter box, a top cover and a gas outlet pipe, wherein the top cover is arranged at the top of the filter box, the gas outlet pipe is fixedly connected to one side of the filter box, filter core paper is wrapped in the filter box, a stable supporting structure is fixedly connected to the bottom end of the inner sink groove, and an external thread pipe is sleeved on the outer side of the gas outlet pipe. According to the utility model, the butt joint structure is arranged, the fastening nut is rotated to enable the fastening nut to move towards the outer side of the dividing groove, at the moment, the external thread pipe region divided by the dividing groove gradually contracts inwards, the air outlet pipe at the inner side of the external thread pipe region is extruded and clamped, and the tightness of the joint is kept under the action of the sealing ring.

Description

Gas filtering device for oxygenerator

Technical Field

The utility model relates to the technical field of oxygenerator gas filtering devices, in particular to a gas filtering device for an oxygenerator.

Background

The oxygenerator is used as a device for separating nitrogen from oxygen in air by taking the compressor as power so as to obtain high-concentration oxygen, and when the oxygenerator is used, the external air is required to be extracted for treatment, and certain dust is mixed in the external air so as to filter the air, and a special oxygenerator gas filtering device is often used so as to enable the oxygenerator to obtain purer air.

When common oxygenerator is used, most of the common oxygenerator gas filtering device is arranged in the multi-layer filter element paper and the filter box, so that the outside air is pumped and pulled into the filter box under the action of the air pump, and the common oxygenerator gas filtering device has a good filtering effect when being used due to the fact that the multi-layer filter element paper filters the outside air layer by layer, but some problems exist:

1. when the common gas filtering device for the oxygenerator is used, the common gas filtering device is required to be connected with the oxygenerator through a pipeline, and the sealing performance is easy to be reduced due to frequent disassembly and assembly of the connection part.

2. When the common gas filtering device for the oxygenerator is used, the filtering effect of the filter element paper is gradually reduced due to long-time dust absorption, and the filter element paper is often inconvenient to replace.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to provide a gas filtering device for an oxygenerator, which is used for solving the defect that the sealing effect is reduced due to frequent disassembly and assembly at the joint of the gas filtering device for the oxygenerator and the oxygenerator in the prior art.

(II) summary of the utility model

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a oxygenerator is with gaseous filter equipment, includes rose box, top cap and outlet duct, the top cap is installed at the top of rose box, one side fixedly connected with outlet duct of rose box, the inside parcel of rose box has filter core paper, the bottom fixedly connected with of rose box is interior sink, the inside bottom fixedly connected with stable supporting structure of sink, the equal fixedly connected with of both sides of top cap bottom is assisted the dismouting structure, the butt joint structure is installed in the outside of outlet duct, the butt joint structure includes external screw thread pipe, coupling hose, fastening nut, division groove and sealing washer, the outside of outlet duct is located to the external screw thread pipe box.

When the filter box is used, the filter box and the top cover are closed and are installed in the oxygenerator, the filter box is connected with the oxygenerator through the connecting hose, the internal air pump of the oxygenerator can generate larger negative pressure in the filter box through the connecting hose, external air enters the filter box through the air inlet, the external air is filtered layer by layer through the filter element paper, dust and other impurities in the external air are adsorbed on the surface of the filter element paper, and then the external air enters the oxygenerator through the connecting hose for treatment.

Preferably, the auxiliary dismounting structure comprises a sealing rubber frame, a buckle and a clamping block, wherein the sealing rubber frame is arranged at the top end of the outer side wall of the filter tank, the buckles are fixedly connected to the two sides of the bottom end of the top cover, the clamping blocks are fixedly connected to the upper parts of the two sides of the filter tank, the buckle is buckled to enable the buckle to be separated from the clamping block in a clamping manner, the top cover can be taken down, and then the filter element paper can be directly taken out by replacing the filter element paper.

Preferably, the sealing rubber frame and the filter box are in an embedded structure, and the buckle and the clamping block are in a clamping structure, so that the top cover is more convenient to assemble and disassemble.

Preferably, one side fixedly connected with coupling hose of external screw thread pipe, the outside threaded connection of external screw thread pipe has fastening nut, the partition groove has all been seted up to the inside of external screw thread pipe both ends one side, one side fixedly connected with sealing washer of external screw thread pipe inside wall only need rotate fastening nut when dismouting again with external screw thread pipe pull out from the outlet duct outside can.

Preferably, the external thread pipe and the fastening nut are in a threaded connection structure, and the cross section area of the inner diameter of the sealing ring is the same as the cross section area of the outer diameter of the air outlet pipe, so that good tightness is kept between the air outlet pipe and the external thread pipe.

Preferably, the stable supporting structure comprises a baffle, a pressing sheet, an air inlet and anti-skid lugs, the baffle is fixedly connected to one side of the bottom end of the inner sink, the pressing sheet is fixedly connected to the other side of the bottom end of the inner sink, the air inlet is formed in one side of the inner sink, the anti-skid lugs are fixedly connected to the top end of the pressing sheet, and the friction force between the filter element paper and the pressing sheet is greatly improved due to the fact that the anti-skid lugs are fixed on the contact surface of the pressing sheet and the filter element paper at equal intervals.

Preferably, the air inlets are formed in one side of the inner sink groove, and the air inlets are distributed at equal intervals on one side of the inner sink groove, so that air can directly contact with the filter element paper after entering.

(III) beneficial effects

The utility model provides a gas filtering device for an oxygenerator, which has the advantages that: the butt joint structure is arranged, the fastening nut is rotated to enable the fastening nut to move towards the outer side of the dividing groove, at the moment, the external thread pipe area divided by the dividing groove gradually contracts inwards, the air outlet pipe at the inner side of the external thread pipe area is extruded and clamped, and the tightness of the joint of the external thread pipe area is kept under the action of the sealing ring;

through being provided with supplementary dismouting structure, cover the top cap behind the rose box top buckle and fixture block formation block to make rose box and top cap connection keep certain sealed effect under sealing rubber frame effect, only need buckle the buckle and make its block with the fixture block break away from can take off the top cap when need changing filter core paper, later change filter core paper can, realized improving the convenience of device;

through being provided with stable bearing structure, all fix a plurality of press sheets in the bottom of top cap and the inside bottom of interior heavy groove, make filter core paper install again in the rose box after its upper and lower both ends will be extruded and centre gripping by the press sheet, because the equidistant fixed a plurality of antiskid lugs of contact surface of press sheet and filter core paper, make the filter core paper improve greatly with the friction between the press sheet to this makes the filter core paper be difficult for receiving the air flow and appear the drunkenness in the inside of rose box, has realized improving the stability of device.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic side view of the present utility model in a deployed configuration;

FIG. 4 is an enlarged partial cross-sectional view of the structure of FIG. 1A according to the present utility model;

FIG. 5 is a schematic view of a three-dimensional partial structure of a stabilized support structure according to the present utility model.

In the figure: 1. a filter box; 2. a top cover; 3. an auxiliary dismounting structure; 301. sealing the rubber frame; 302. a buckle; 303. a clamping block; 4. an air outlet pipe; 5. a butt joint structure; 501. an external threaded tube; 502. a connecting hose; 503. a fastening nut; 504. a dividing groove; 505. a seal ring; 6. filter element paper; 7. an inner sink groove; 8. stabilizing the support structure; 801. a baffle; 802. pressing the sheet; 803. an air inlet; 804. and the anti-skid convex blocks.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1-5, the gas filtering device for an oxygenerator provided by the utility model comprises a filtering box 1, a top cover 2 and a gas outlet pipe 4, wherein the top cover 2 is installed at the top of the filtering box 1, one side of the filtering box 1 is fixedly connected with the gas outlet pipe 4, filter core paper 6 is wrapped in the filtering box 1, the bottom end of the filtering box 1 is fixedly connected with an inner sink 7, a butt joint structure 5 is installed on the outer side of the gas outlet pipe 4, the butt joint structure 5 comprises an external thread pipe 501, a connecting hose 502, a fastening nut 503, a dividing groove 504 and a sealing ring 505, the external thread pipe 501 is sleeved on the outer side of the gas outlet pipe 4, one side of the external thread pipe 501 is fixedly connected with the connecting hose 502, the fastening nut 503 is connected with the outer side threads of the external thread pipe 501, the inner side of the inner side wall of the external thread pipe 501 is fixedly connected with the sealing ring 505, the external thread pipe 501 and the fastening nut 503 are in a threaded connection structure, and the cross section area of the inner diameter of the sealing ring is the same as the outer diameter of the gas outlet pipe 4.

The working principle of the gas filtering device for an oxygenerator based on embodiment 1 is that when the device is used, the filtering box 1 and the top cover 2 are closed and are installed in the oxygenerator, the filtering box 1 and the oxygenerator are connected through the connecting hose 502, the internal air pump of the oxygenerator can generate larger negative pressure in the filtering box 1 through the connecting hose 502, external air enters the filtering box 1 through the air inlet 803, the external air is filtered layer by layer through the filter core paper 6, dust and other impurities in the external air are adsorbed on the surface of the filter core paper 6, then enter the oxygenerator through the connecting hose 502 for processing, when the device is disassembled and assembled in the process, the joint between the device and the oxygenerator is easy to be sealed due to frequent disassembly, therefore, the external threaded pipe 501 is sleeved outside the air outlet pipe 4, the external threaded pipe 501 is then rotated to enable the external threaded pipe 501 to move towards the outer side of the dividing groove 504, at the moment, the external threaded pipe 501 area divided by the dividing groove 504 is gradually contracted inwards, the air outlet pipe 4 inside the external pipe is clamped, dust and other end of the external air outlet pipe is kept in the inner side of the filtering box through the air inlet 803, the effect of the filtering box is kept under the effect of 505, the sealing performance of the external threaded pipe 501 is kept at the joint between the external threaded pipe and the external pipe 4, and the external threaded pipe is sealed by the external threaded pipe is only being screwed and screwed into the external pipe 501 when the external pipe is kept in the external pipe 4, and the external pipe is connected with the external pipe is sealed and screwed with the external pipe 501.

Example two

The embodiment further includes: the equal fixedly connected with of both sides of top cap 2 bottom is assisted dismouting structure 3, and supplementary dismouting structure 3 includes sealing rubber frame 301, buckle 302 and fixture block 303, and sealing rubber frame 301 installs in the top of rose box 1 lateral wall, the equal fixedly connected with buckle 302 of both sides of top cap 2 bottom, the equal fixedly connected with fixture block 303 of the top of rose box 1 both sides, and sealing rubber frame 301 is mosaic structure with rose box 1, and buckle 302 is the block structure with fixture block 303.

In this embodiment, after the device is used for a long time, a large amount of dust will be adsorbed on the surface of the filter element paper 6, and the filtering effect of the filter element paper 6 will continue to be reduced along with the time, for keeping the filtering effect of the device, the filter element paper 6 needs to be disassembled and replaced regularly, and for facilitating the disassembly and assembly of the filter element paper 6, for this reason, the two sides of the bottom end of the top cover 2 are fixed with the buckles 302 with certain elasticity, the top cover 2 is covered on the top of the filter box 1, the buckles 302 and the clamping blocks 303 form a clamping connection, and the filter box 1 and the top cover 2 are connected under the action of the sealing rubber frame 301 to keep a certain sealing effect, and when the filter element paper 6 needs to be replaced, the top cover 2 can be taken down only by buckling the buckles 302 to be separated from the clamping blocks 303, and then the filter element paper 6 needs to be replaced.

Example III

The embodiment further includes: inside bottom fixedly connected with stable supporting structure 8 of interior heavy groove 7, stable supporting structure 8 includes baffle 801, presses piece 802, air inlet 803 and anti-skidding lug 804, baffle 801 fixed connection presses piece 802 in the opposite side fixedly connected with of the inside bottom of interior heavy groove 7, air inlet 803 has been seted up to one side of interior heavy groove 7, press the top fixedly connected with anti-skidding lug 804 of piece 802, a plurality of has been seted up to one side of interior heavy groove 7 to air inlet 803, and a plurality of air inlet 803 is equidistant distribution in one side of interior heavy groove 7.

In this embodiment, when the device is used, the air pump in the oxygenerator will make the external air enter the interior of the filter tank 1 through the air inlet 803, and make the air enter the oxygenerator through the air outlet pipe 4 and the connecting hose 502, and the flow of the air in the filter tank 1 in this process easily causes the filter core paper 6 to play in the interior of the filter tank 1, so that the filtering effect of the filter core paper 6 is affected to a certain extent, therefore, a plurality of pressing pieces 802 are fixed at the bottom end of the top cover 2 and the bottom end of the interior sink 7, so that the upper and lower ends of the filter core paper 6 are extruded and clamped by the pressing pieces 802 after being mounted in the interior of the filter tank 1, and because the contact surfaces of the pressing pieces 802 and the filter core paper 6 are fixed with a plurality of anti-slip bumps 804 at equal intervals, the friction force between the filter core paper 6 and the pressing pieces 802 is greatly improved, so that the filter core paper 6 is not easily subjected to the air flow in the interior of the filter tank 1.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (7)

1. The utility model provides a gas filtering device for oxygenerator, includes rose box (1), top cap (2) and outlet duct (4), its characterized in that: the top cover (2) is installed at the top of the filter box (1), an air outlet pipe (4) is fixedly connected to one side of the filter box (1), filter core paper (6) is wrapped in the filter box (1), an inner sink groove (7) is fixedly connected to the bottom end of the filter box (1), and a stable supporting structure (8) is fixedly connected to the bottom end of the inner sink groove (7);

the two sides of the bottom end of the top cover (2) are fixedly connected with auxiliary dismounting structures (3);

the butt joint structure (5) is installed in the outside of outlet duct (4), butt joint structure (5) are including external screw thread pipe (501), coupling hose (502), fastening nut (503), dividing groove (504) and sealing washer (505), the outside of outlet duct (4) is located to external screw thread pipe (501) cover.

2. The gas filtering device for an oxygenerator according to claim 1, wherein: the auxiliary dismounting structure (3) comprises a sealing rubber frame (301), buckles (302) and clamping blocks (303), wherein the sealing rubber frame (301) is mounted on the top end of the outer side wall of the filter tank (1), the buckles (302) are fixedly connected to the two sides of the bottom end of the top cover (2), and the clamping blocks (303) are fixedly connected to the upper portions of the two sides of the filter tank (1).

3. The gas filtering device for an oxygenerator according to claim 2, wherein: the sealing rubber frame (301) and the filtering box (1) are of an embedded structure, and the clamping buckle (302) and the clamping block (303) are of a clamping structure.

4. The gas filtering device for an oxygenerator according to claim 1, wherein: one side fixedly connected with coupling hose (502) of external screw thread pipe (501), the outside threaded connection of external screw thread pipe (501) has fastening nut (503), division groove (504) have all been seted up to the inside of external screw thread pipe (501) both ends one side, one side fixedly connected with sealing washer (505) of external screw thread pipe (501) inside wall.

5. The gas filtering device for an oxygenerator according to claim 4, wherein: the external threaded pipe (501) and the fastening nut (503) are in a threaded connection structure, and the cross section area of the inner diameter of the sealing ring (505) is the same as the cross section area of the outer diameter of the air outlet pipe (4).

6. The gas filtering device for an oxygenerator according to claim 1, wherein: stable bearing structure (8) include baffle (801), press piece (802), air inlet (803) and anti-skidding lug (804), one side of the inside bottom of baffle (801) fixed connection in interior heavy groove (7), the opposite side fixedly connected with of the inside bottom of interior heavy groove (7) presses piece (802), air inlet (803) have been seted up to one side of interior heavy groove (7), the top fixedly connected with anti-skidding lug (804) of pressing piece (802).

7. The gas filtering device for an oxygenerator according to claim 6, wherein: the air inlets (803) are formed in one side of the inner sink (7) in a plurality, and the air inlets (803) are distributed at equal intervals on one side of the inner sink (7).