Portable oxygen inhalation instrument

Abstract

The utility model relates to the technical field of oxygen uptake instruments, in particular to a portable oxygen uptake instrument which comprises an oxygen uptake machine and a plurality of universal wheels installed at the bottom of the oxygen uptake machine, shaft barrels are fixedly installed on the two opposite outer side walls of the oxygen uptake machine, and shaft cavities are formed in the tops of the shaft barrels. The lifting assembly comprises lifting rods which are inserted into the corresponding shaft cavities in a lifting and sliding mode and can be kept fixed with the corresponding shaft barrels, and the extrusion fixing assembly comprises extrusion round bases which are arranged below the two shaft barrels and can be flush with the universal wheels in height and further comprises lifting shafts which are perpendicularly and fixedly connected to the top ends of the extrusion round bases and stretch into the shaft cavities. The height of the two lifting rods is reduced in a mode of downwards extruding the handle sleeve until the corresponding extruding round seat is pushed to be in an extruding and propping state with the ground, so that the frictional resistance between the whole oxygen generator and the ground is improved, and the oxygen generator in use is kept stable on the premise of not inclining the oxygen generator and shifting the gravity center of the oxygen generator; and the smooth oxygen inhalation process is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen absorption instruments, in particular to a portable oxygen absorption instrument. Background Art

[0002] Oxygen concentrator is a household item. As living standards continue to improve, people pay more attention to their health, and many families will choose to purchase oxygen concentrators.

[0003] The Chinese utility model patent, with authorization announcement number "CN215653196U," specifically refers to a "portable oxygen concentrator for cardiac patients." It combines an oxygen concentrator with a towing device, allowing the concentrator to be easily carried by towing with minimal physical effort, making it particularly suitable for frail patients and the elderly.

[0004] Although the above device is provided with a retractable pull rod on the top of the oxygen concentrator and support wheels are installed on the bottom of the oxygen concentrator, so that the oxygen concentrator can be moved conveniently through the pull rod and the support wheels, when the oxygen concentrator needs to be used for oxygen inhalation, the above device contacts the ground through the support wheels and the bottom edge of the oxygen concentrator. The relative friction between the entire body and the ground is relatively small. Moreover, since the support wheels and the bottom edge of the oxygen concentrator are in contact with the ground, the body will tilt and the center of gravity will shift, making it easy to slip, which will have an adverse effect on the ongoing oxygen inhalation process. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a portable oxygen absorber that can be carried around, which can effectively solve the problems raised in the background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a portable oxygen concentrator that can be carried around, comprising an oxygen concentrator and a plurality of universal wheels installed at the bottom of the oxygen concentrator, wherein shaft cylinders are fixedly installed on two opposite outer side walls of the oxygen concentrator, and shaft cavities are opened on the tops of the shaft cylinders, and a lifting component comprises lifting rods which are respectively lifted and slidably inserted into corresponding shaft cavities and can remain fixed with the corresponding shaft cylinders, an extrusion fixing component comprises an extrusion round seat which is arranged below the two shaft cylinders and can be flush with the height of the universal wheels, a lifting shaft which is vertically fixedly connected to the top of the extrusion round seat and extends into the shaft cavity, and a lifting block which is lifted and slidably arranged in the corresponding shaft cavity and is respectively fixedly installed on the tops of the corresponding lifting shafts, and the lifting block is elastically in contact with the bottom of the corresponding shaft cavity.

[0008] Furthermore, the inner cavity wall of the shaft cavity is provided with a receiving cavity, and an extrusion block for extruding and resisting the lifting rod is telescopically and slidably installed in the receiving cavity.

[0009] Furthermore, screws are threadedly installed on the outer side of the shaft tube, and the ends of the screws are fixedly installed with limit blocks extending into the storage cavity. The extrusion blocks are provided with limit cavities on the side close to the corresponding screws to facilitate the rotation and installation of the limit blocks.

[0010] Furthermore, a cross bar is rotatably connected between the two lifting rods, and a handle cover is fixedly sleeved on the outer rod wall of the cross bar.

[0011] Furthermore, a circular hole is provided on the lower bottom of the shaft cylinder through the corresponding shaft cavity to facilitate the lifting and sliding of the lifting shaft. The inner diameter of the circular hole is consistent with the outer diameter of the lifting shaft and is smaller than the inner diameter of the spring.

[0012] Furthermore, springs are installed at the bottom of each lifting block, which are respectively sleeved on the outer wall of the corresponding lifting shaft and in contact with the bottom of the corresponding shaft cavity.

[0013] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0014] 1. The shaft cylinder is fixed on both sides of the oxygen concentrator, and a retractable and sliding extrusion round seat is installed at the bottom of the shaft cylinder. The extrusion round seat and the ground are in contact with each other to increase the friction resistance between the entire oxygen concentrator and the ground. Without tilting the oxygen concentrator or shifting the center of gravity of the oxygen concentrator, the oxygen concentrator in use remains stable, which is conducive to the smooth oxygen inhalation process.

[0015] 2. Install the lifting rod by sliding it up and down in the shaft tube, install a cross bar between the two lifting rods, and put a handle cover on the cross bar. When the oxygen concentrator needs to be moved, adjust the position between the shaft tube and the shaft by pulling up the handle cover, and push the extrusion block to squeeze and resist the lifting rod by rotating the screw on the outside of the shaft tube. After adjusting the height, fix the handle cover, and move the oxygen concentrator conveniently through the universal wheel at the bottom of the oxygen concentrator. When the oxygen concentrator needs to be used, lower the height of the two lifting rods by squeezing the handle cover downward until the corresponding extrusion round seat is pushed to the state of squeezing and resisting with the ground, and then push the extrusion block to squeeze and resist the corresponding lifting rod by rotating the screw again to complete the limit fixation of the oxygen concentrator and the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0017] Figure 1 This is a schematic diagram of the structure of the oxygen concentrator in mobile state of the present utility model;

[0018] Figure 2 This is a schematic diagram of the oxygen concentrator in use;

[0019] Figure 3 This is a schematic diagram of the internal installation structure of the shaft cavity of the utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the extrusion block of the utility model;

[0021] Figure 5 This is a schematic diagram of the screw and extrusion block installation structure of the utility model.

[0022] The numbers in the figure represent:

[0023] 1. Oxygen concentrator; 11. Universal wheels;

[0024] 2. Shaft cylinder; 21. Shaft cavity; 22. Storage cavity; 23. Extrusion block; 24. Screw; 25. Limit block; 26. Limit cavity;

[0025] 3. Lifting rod; 31. Crossbar; 32. Handle cover;

[0026] 41. Extrusion round seat; 42. Lifting shaft; 43. Spring; 44. Lifting block. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] Example 1

[0030] Reference Figure 1-4, which is the first embodiment of the present utility model, discloses a portable oxygen concentrator that can be carried around, including an oxygen concentrator 1 and a plurality of universal wheels 11 installed at the bottom of the oxygen concentrator 1. The oxygen concentrator 1 uses zeolite molecular sieve as an adsorbent, and uses a physical pressure swing adsorption method to separate oxygen and nitrogen in the air, and filters out harmful substances in the air, thereby obtaining high-purity oxygen that meets medical oxygen standards. The specific internal structure and working principle belong to common knowledge in this technical field, so they will not be described in detail here. The two opposite outer walls of the oxygen concentrator 1 are fixedly installed with shaft cylinders 2, and the top of the shaft cylinders 2 is provided with shaft cavities 21. The lifting assembly includes lifting rods 3 that are respectively lifted and slidably inserted into the corresponding shaft cavities 21 and can remain fixed with the corresponding shaft cylinders 2. The lifting rods 3 are adapted to the shaft cavity 21 to ensure lifting. The lifting and sliding process of the rod 3 is stable and reliable. The extrusion fixing component includes an extrusion round seat 41 arranged under the two shaft cylinders 2 and can be flush with the height of the universal wheel 11. When the extrusion round seat 41 is flush with the height of several universal wheels 11, the extrusion round seat 41 contacts the ground, and there is a large sliding friction resistance between the two, which can improve the overall stability of the oxygen concentrator 1. It also includes a lifting shaft 42 that is vertically fixedly connected to the top of the extrusion round seat 41 and extends into the shaft cavity 21. It also includes a lifting and sliding arrangement in the corresponding shaft cavity 21 and a lifting block 44 fixedly installed on the top of the corresponding lifting shaft 42. The lifting block 44 is in elastic contact with the bottom of the corresponding shaft cavity 21, which facilitates the automatic reset of the lifting block 44 and the extrusion round seat 41 when the lifting rod 3 can be freely lifted and lowered.

[0031] Example 2

[0032] Reference Figure 1-4 , which is the second embodiment of the present utility model. This embodiment is different from the first embodiment in that: the inner wall of the shaft cavity 21 is provided with a receiving cavity 22, and an extrusion block 23 is telescopically and slidably installed in the receiving cavity 22 to squeeze and resist the lifting rod 3. The outer side of the shaft cylinder 2 is threaded with a screw 24, and the end of the screw 24 is fixedly installed with a limit block 25 extending into the receiving cavity 22. The extrusion block 23 is provided with a limit cavity 26 on the side close to the corresponding screw 24 to facilitate the rotation installation of the limit block 25. When the screw 24 is rotated to tighten or loosen, the limit block 25 performs a spiral motion synchronously. , thereby pushing the corresponding extrusion block 23 to telescopically slide in the corresponding storage cavity 22. A cross bar 31 is rotatably connected between the two lifting rods 3. The outer rod wall of the cross bar 31 is fixedly covered with a handle cover 32 to improve the stability of the user when holding the cross bar 31. The bottom of the lifting block 44 is installed with a spring 43 which is respectively sleeved on the outer shaft wall of the corresponding lifting shaft 42 and in contact with the bottom of the corresponding shaft cavity 21. The lower bottom of the shaft cylinder 2 passes through the corresponding shaft cavity 21 and is provided with a circular hole for facilitating the lifting and sliding of the lifting shaft 42. The inner diameter of the circular hole is consistent with the outer diameter of the lifting shaft 42, and is smaller than the inner diameter of the spring 43.

[0033] The remaining structures are the same as those of Example 1.

[0034] The workflow of this utility model is as follows:

[0035] When the oxygen concentrator 1 is in the mobile state, first loosen the two screws 24 respectively, thereby driving the corresponding extrusion block 23 to be stored back in the corresponding storage cavity 22, and no longer squeezing or interfering with the corresponding lifting rod 3. At this time, by holding the handle cover 32 and pulling the cross bar 31 upward, the two lifting rods 3 slide upward in the corresponding shaft cavity 21 respectively. When the handle cover 32 is pulled upward to a height convenient for the corresponding user, tighten the two screws 24 respectively, driving the corresponding extrusion block 23 to extend from the corresponding storage cavity 22 and squeeze and interfere with the outer rod wall of the corresponding lifting rod 3, thereby completing the limiting fixation of the lifting rod 3, that is, the cross bar 31 and the handle cover 32. The oxygen concentrator 1 is pushed by the handle cover 32, and the plurality of universal wheels 11 at the bottom of the oxygen concentrator 1 are cooperated to facilitate the flexible steering and movement of the oxygen concentrator;

[0036] When the oxygen concentrator 1 is in use, first loosen the two screws 24 respectively, thereby driving the corresponding extrusion block 23 to be stored back into the corresponding storage cavity 22, and no longer squeezing or interfering with the corresponding lifting rod 3. At this time, by holding the handle cover 32 and squeezing the cross bar 31 downward, the two lifting rods 3 slide downward in the corresponding shaft cavity 21 until the two lifting rods 3 respectively conflict with the corresponding lifting blocks 44, and continue to press down, so that the lifting block 44 is forced to move toward the bottom of the corresponding shaft cavity 21, and then the corresponding lifting block 44 is pushed down by the lifting shaft 42 until it conflicts with the ground. At this time, the spring 43 installed under the lifting block 44 and sleeved on the outside of the corresponding lifting shaft 42 is forced to compress to obtain elastic potential energy. At this time, since the lifting block 44 is in contact with the ground plane, the relative friction resistance is large, so that the oxygen concentrator 1 can remain stable with the ground, ensuring that the oxygen concentrator can work smoothly.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A portable oxygen concentrator, comprising an oxygen concentrator (1) and a plurality of universal wheels (11) mounted on the bottom of the oxygen concentrator (1), wherein shaft cylinders (2) are fixedly mounted on two opposite outer side walls of the oxygen concentrator (1), and shaft cavities (21) are formed on the tops of the shaft cylinders (2), characterized in that: Also includes: A lifting assembly includes lifting rods (3) that are respectively lifted and slidably inserted into corresponding shaft cavities (21) and can be fixed to corresponding shaft cylinders (2); The extrusion fixing assembly includes an extrusion round seat (41) arranged below two shaft cylinders (2) and capable of being flush with the height of the universal wheel (11), a lifting shaft (42) vertically fixedly connected to the top of the extrusion round seat (41) and extending into the shaft cavity (21), and a lifting block (44) which is arranged in a lifting and sliding manner in the corresponding shaft cavity (21) and is respectively fixedly installed on the top of the corresponding lifting shaft (42), and the lifting block (44) is in elastic contact with the bottom of the corresponding shaft cavity (21).

2. A portable oxygen absorber according to claim 1, characterized in that: The inner wall of the shaft cavity (21) is provided with a receiving cavity (22), and a squeezing block (23) for squeezing and resisting the lifting rod (3) is telescopically and slidably installed in the receiving cavity (22).

3. A portable oxygen absorber according to claim 2, characterized in that: The outer side of the shaft cylinder (2) is threadedly mounted with screws (24), and the ends of the screws (24) are fixedly mounted with limit blocks (25) extending into the receiving cavity (22). The extrusion block (23) is provided with a limit cavity (26) on the side close to the corresponding screw (24) for facilitating the rotational installation of the limit block (25).

4. The portable oxygen absorber according to claim 1, characterized in that: A cross bar (31) is rotatably connected between the two lifting rods (3), and a handle cover (32) is fixedly sleeved on the outer rod wall of the cross bar (31).

5. The portable oxygen absorber according to claim 1, characterized in that: The bottom of each lifting block (44) is provided with a spring (43) which is respectively sleeved on the outer wall of the corresponding lifting shaft (42) and contacts the bottom of the corresponding shaft cavity (21).

6. The portable oxygen absorber according to claim 5, characterized in that: The lower bottom of the shaft cylinder (2) is provided with a circular hole penetrating the corresponding shaft cavity (21) to facilitate the lifting and sliding of the lifting shaft (42). The inner diameter of the circular hole is consistent with the outer diameter of the lifting shaft (42) and is smaller than the inner diameter of the spring (43).

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