Movable portable oxygen generator

Abstract

The invention discloses a movable portable oxygenerator, and relates to the technical field of oxygenerators, the movable portable oxygenerator comprises a movable shell and a plurality of universal wheels arranged on the shell, a machine body capable of moving up and down is accommodated in the shell, a limiting unit capable of moving synchronously and reversely with the machine body is arranged at the lower position of an inner cavity of the shell, and the limiting unit is connected with the shell. And when the shell moves to a specified position, the machine body can be lifted to a specified height from the interior of the shell to implement oxygen generation work. The machine body and the limiting unit which synchronously and reversely move are contained in the shell, the machine body and the shell are designed in a split mode, and when the shell and the machine body synchronously reach the designated position, the machine body can ascend to the designated height from the interior of the shell, and oxygen generation work is carried out. And the limiting unit descends to be in contact with a working table below the shell. The anti-skid oxygen generator has the advantage of flexible movement, and meanwhile, the anti-skid performance of the whole oxygen generator in a static state can be improved. Therefore, the oxygen generator can be flexibly switched between a positioning state and a moving state.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen concentrators, and in particular to a movable portable oxygen concentrator. Background Art

[0002] Oxygen concentrator is a device used to produce oxygen, which is widely used in many fields such as medical, industrial and household. It is used to separate oxygen from the air and provide high-concentration pure oxygen. Most of the oxygen concentrators widely used on the market are molecular sieve oxygen concentrators, which use physical methods to directly extract oxygen from the air and remove nitrogen and other impurities through molecular sieve technology. This method is simple and safe and will not cause high-pressure and explosive problems. Oxygen concentrator is an important auxiliary equipment for the treatment of various diseases. Especially in hospital and home environments, oxygen concentrators provide the necessary oxygen supply for patients who need additional oxygen support, such as postoperative recovery, COPD, sleep apnea syndrome and anemia patients. With the continuous advancement and innovation of science and technology, the performance and application scope of oxygen concentrators will continue to expand and improve.

[0003] For example, the Chinese patent document with publication number CN116040585A: A portable medical oxygen concentrator, in which the cross frame is extended by a driving mechanism, so that the hollow frame slides down along the main body of the oxygen concentrator as a whole, so that the universal wheel is off the ground, and the anti-skid pad is in contact with the ground, so that the hollow frame supports the main body of the oxygen concentrator, thereby preventing the sliding caused by the vibration of the main body of the oxygen concentrator during operation. However, this support method makes the main body of the oxygen concentrator tightly connected to the hollow frame, which is not convenient for taking out the oxygen concentrator for maintenance, replacement and other operations. Therefore, the present application provides a movable portable oxygen concentrator to meet the needs. Summary of the invention

[0004] In view of the above problems, the present application provides a movable portable oxygen concentrator.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a movable portable oxygen concentrator, comprising a movable shell and a plurality of universal wheels arranged on the shell, wherein a body that can be raised and lowered is accommodated in the shell, and a limiting unit that can move synchronously and in the opposite direction with the body is provided at the lower position of the inner cavity of the shell, and when the shell moves to a specified position, the body can rise from the shell to a specified height to carry out oxygen production work, and at the same time, the limiting unit descends and contacts with the work surface below the shell.

[0006] It also includes an oxygen supply hose arranged on the body and a storage rod for winding and storing the oxygen supply hose, the storage rod is provided with a limit strip that can fit with the oxygen supply hose in a wound state, the limit strip is connected to the storage rod through an elastic structure, and a pressure block that can be pressed against the limit strip is provided outside the shell, as the body rises, the pressure block originally pressed against the limit strip is synchronously moved laterally, so that the limit strip originally fitted to the oxygen supply hose can be elastically released, leaving space for taking the oxygen supply hose.

[0007] Furthermore, the shell is provided with a symmetrically arranged push block 1 and a push block 2, both of which are trapezoidal structures, and the bottom end of the body is recessed upward to form two symmetrical inclined surfaces, and the inclined edges of the push block 1 and the push block 2 are respectively opposite to the two inclined surfaces.

[0008] The oblique sides of the push blocks 1 and 2 are both provided with pressure roller groups, and the oblique surfaces of the machine body are both provided with oblique guide rails matched with the pressure roller groups. When the push blocks 1 and 2 move synchronously toward the center position in the shell, the pressure roller groups slide in the oblique guide rails corresponding thereto until the machine body moves upward in the shell.

[0009] Furthermore, the shell is provided with a transversely arranged driving screw, and the part of the driving screw located on the inner side of the shell is provided with positive and reverse threads in opposite directions. The bottom ends of the push block 1 and the push block 2 are provided with sliding seats, and the two sliding seats are respectively arranged at the positive and reverse thread positions of the driving screw. When the driving screw rotates, the two sliding seats, push block 1 and push block 2 can move in opposite directions respectively.

[0010] Furthermore, a limiting roller group is disposed outside the body, and a vertical guide rail matched with the limiting roller group is disposed inside the shell. When the body rises inside the shell, the limiting roller group rises synchronously inside the vertical guide rail.

[0011] Furthermore, the driving screw is provided with two bevel gears 1 of the same specification, and bevel gear 2 is meshed below the bevel gear 1. Bevel gear 2 is provided on the bevel gear 2 and is coaxially distributed therewith. The linkage screw is arranged on the housing through a bearing. When bevel gear 1 meshes with bevel gear 2 and rotates, the linkage screw rotates synchronously.

[0012] The driving screw is provided with a linkage gear, the linkage gear is provided with a driving gear meshing with it, the driving gear is provided with a driving shaft matched with it and a motor that can control the rotation of the driving shaft, a mounting seat matched with the driving gear, the driving shaft and the motor is provided in the shell, and a controller connected to the motor is provided outside the shell.

[0013] Furthermore, the limiting unit includes two linkage seats that can move up and down, the two linkage seats are respectively installed on the linkage screw rods, and the bottom ends of the linkage seats are provided with anti-slip claws.

[0014] The shell is provided with a first limiting rod, and the linkage seat sleeve is arranged outside the first limiting rod. When the linkage seat is lowered to the limit position as the linkage screw rotates, the anti-slip claw is pressed tightly against the work surface.

[0015] Furthermore, a threaded portion matching the pressure block is provided on the portion of the driving screw located outside the shell, a guide seat capable of accommodating the pressure block is provided outside the shell, the portion of the driving screw located outside the shell is provided on the guide seat, a second limiting rod penetrating the pressure block and parallel to the driving screw is provided in the guide seat, and when push block 1 and push block 2 move in opposite directions respectively, the moving direction of the pressure block is the same as the moving direction of push block 1.

[0016] Furthermore, the elastic structure includes a pressure spring and a guide rod located on the inner side thereof, a channel is opened on the storage rod, the limit bar passes through the channel and extends to the left and right sides of the storage rod, the guide rod is arranged in the channel and passes through the limit bar, and the side of the limit bar away from the oxygen supply hose is connected to the inner wall of the channel through the pressure spring. As the body and the storage rod rise, the limit bar originally pressed by the pressure block can be moved and reset to increase the distance between the body and the storage rod.

[0017] In summary, the technical effects and advantages of the present invention are as follows:

[0018] 1. The present invention accommodates a synchronous and reverse moving body and a limiting unit in the shell. The body and the shell are designed separately. When the shell and the body also reach the specified position synchronously, the body can rise from the shell to the specified height to implement oxygen production. The limiting unit descends and contacts the work surface under the shell. While having the advantage of flexible movement, it can also improve the anti-slip performance of the entire oxygen concentrator in a static state. In addition, the oxygen concentrator can be flexibly switched between the positioning and moving states, and is suitable for different working environments.

[0019] 2. The present invention is provided with a storage rod on the body for the oxygen hose to be wound and stored, so that the oxygen hose can be neatly stored to prevent the oxygen hose from being contaminated. At the same time, the oxygen hose can be prevented from falling off the storage rod, ensuring the safety of the oxygen hose when in use. As the body rises, the limit strip originally attached to the oxygen hose can be elastically released, leaving space for taking out the oxygen hose, so that the oxygen hose can be used smoothly, which has the advantage of portable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure from the second viewing angle of the present invention.

[0023] Figure 3 It is a schematic diagram of the internal structure of the shell of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the shell of the present invention being connected to the machine body after being cut open.

[0025] Figure 5 It is a schematic diagram of the structure of the shell after being cut open.

[0026] Figure 6 For the present invention Figure 5 Enlarged structural diagram at A in the middle.

[0027] Figure 7 It is a schematic diagram of the machine structure of the present invention.

[0028] Figure 8 It is a schematic diagram of the structure of the machine body of the present invention after it is raised inside the casing.

[0029] Fig. 9 It is a schematic structural diagram of the second viewing angle after the machine body of the present invention is raised inside the shell.

[0030] Fig.10 For the present invention Fig. 9 Enlarged structural diagram at B in the middle.

[0031] In the figure: 1. shell; 11. universal wheel; 12. vertical guide rail; 13. first limit rod; 14. pressure block; 15. guide seat; 16. second limit rod; 2. machine body; 21. oblique guide rail; 22. limit roller group; 23. oxygen supply hose; 24. storage rod; 25. limit strip; 26. guide rod; 27. pressure spring; 3. push block 1; 4. push block 2; 5. pressure roller group; 6. sliding seat; 7. driving screw; 71. bevel gear 1; 72. bevel gear 2; 73. linkage screw; 74. linkage gear; 75. driving gear; 76. driving shaft; 77. motor; 8. linkage seat; 9. anti-slip claw. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Reference Figure 1-10 A movable portable oxygen concentrator is shown, comprising a movable shell 1 and a plurality of universal wheels 11 arranged on the shell 1. In actual use, the shell 1 can be moved to a designated position under the action of the universal wheels 11. A body 2 that can be raised and lowered is accommodated in the shell 1, and a limit unit that can move synchronously and in the opposite direction with the body 2 is provided at the lower position of the inner cavity of the shell 1. Therefore, when the shell 1 moves to the designated position, the body 2 also reaches the position synchronously, and the body 2 can rise from the shell 1 to a designated height to perform oxygen production. During the rising process of the body 2, the limit unit descends and contacts the work surface below the shell 1 to maintain the stability of the body 2 and the shell 1.

[0034] Therefore, the portable oxygen concentrator in this embodiment can be moved to a designated location according to the use requirements, and has the advantage of flexible movement. When the oxygen concentrator is located at the location for a long time to provide oxygen, the limit unit can improve the anti-slip performance of the entire oxygen concentrator to prevent the oxygen concentrator from shaking or deflecting under the action of external forces. Therefore, the oxygen concentrator can be flexibly switched between the positioning and moving states, and is suitable for different working environments.

[0035] Furthermore, it also includes an oxygen hose 23 provided on the body 2 and a storage rod 24 for winding and storing the oxygen hose 23. When the oxygen concentrator is in an idle state, the oxygen hose 23 can be neatly stored to prevent the oxygen hose 23 from being contaminated. The storage rod 24 is provided with a limit bar 25 that can fit with the oxygen hose 23 in the wound state. The limit bar 25 can be pressed against the oxygen hose 23 to prevent the oxygen hose 23 from falling off the storage rod 24. Whether the oxygen concentrator is in a moving state or an idle state, the stability of the oxygen hose 23 can be maintained, thereby ensuring the safety of the oxygen hose 23 when in use.

[0036] When the machine body 2 is rising for operation, in order to be able to smoothly take the oxygen supply hose 23, the limit strip 25 is connected to the storage rod 24 through an elastic structure, and a pressure block 14 that can be pressed against the limit strip 25 is provided outside the shell 1. As the machine body 2 rises, the pressure block 14 that was originally pressed against the limit strip 25 is synchronously moved laterally, so that the limit strip 25 that was originally attached to the oxygen supply hose 23 can be elastically released, leaving space for taking the oxygen supply hose 23, so that the oxygen supply hose 23 can be used smoothly, which has the advantage of portable operation.

[0037] like Figure 3 , Figure 4 As shown, a symmetrically arranged push block 1 3 and a push block 2 4 are provided in the shell 1, and both the push block 1 3 and the push block 2 4 are trapezoidal structures. The bottom end of the body 2 is recessed upward to form two symmetrical inclined surfaces, and the inclined edges of the push block 1 3 and the push block 2 4 are respectively opposite to the two inclined surfaces.

[0038] The inclined sides of the push block 1 3 and the push block 2 4 are both provided with a pressure roller group 5, and the inclined surface of the body 2 is both provided with an inclined guide rail 21 adapted to the pressure roller group 5. When the push block 1 3 and the push block 2 4 move synchronously toward the center position in the housing 1, the pressure roller group 5 slides in the corresponding inclined guide rails 21, generating an upward thrust on the body 2 until the body 2 moves upward in the housing 1. The combination of the pressure roller group 5 and the inclined guide rail 21 can reduce the friction during the movement of the push block 1 3 and the push block 2 4, and improve the smoothness of the movement of the body 2.

[0039] like Figure 5 , Figure 6 As shown, the housing 1 is provided with a transversely arranged driving screw 7, and the driving screw 7 located on the inner side of the housing 1 is provided with positive and reverse threads in opposite directions, and the bottom ends of the push block 1 3 and the push block 2 4 are provided with a sliding seat 6, and the two sliding seats 6 are respectively arranged at the positive and reverse thread positions of the driving screw 7. When the driving screw 7 rotates, the two sliding seats 6, the push block 1 3 and the push block 2 4 can move in opposite directions respectively. The setting of the driving screw 7 provides power for the movement of the push block 1 3 and the push block 2 4.

[0040] In order to improve the stability of the body 2 during movement, a limiting roller group 22 is provided on the outside of the body 2, and a vertical guide rail 12 compatible with the limiting roller group 22 is provided in the shell 1. When the body 2 is located in the shell 1 and rises, the limiting roller group 22 is located in the vertical guide rail 12 and moves upward synchronously, thereby maintaining the linearity of the body 2 during the rising and falling movements, and ensuring the stability of the body 2 in the moving state.

[0041] The driving screw 7 is provided with two bevel gears 71 of the same specification, and bevel gears 71 are meshed with bevel gears 72 below. Bevel gears 72 are provided with linkage screws 73 coaxially distributed therewith. The linkage screws 73 are arranged on the housing 1 through bearings. When bevel gears 71 mesh with bevel gears 72 and rotate, the linkage screws 73 rotate synchronously.

[0042] The driving screw rod 7 is provided with a linkage gear 74, the linkage gear 74 is provided with a driving gear 75 meshing therewith, the driving gear 75 is provided with a driving shaft 76 matched therewith and a motor 77 capable of controlling the rotation of the driving shaft 76, a mounting seat matched with the driving gear 75, the driving shaft 76 and the motor 77 is provided inside the housing 1, and a controller connected to the motor 77 is provided outside the housing 1. The user operates the controller to control the operation of the motor 77, and the driving screw rod 7 and the linkage screw rod 73 can be rotated under the meshing force of the driving gear 75 and the linkage gear 74.

[0043] like Figure 5 , Figure 6 As shown, specifically, the limiting unit includes two linkage seats 8 that can be raised and lowered, and the two linkage seats 8 are respectively installed on the linkage screw 73, and the bottom ends of the linkage seats 8 are provided with anti-slip claws 9. The housing 1 is provided with a first limiting rod 13, and the linkage seat 8 is sleeved outside the first limiting rod 13. When the linkage seat 8 is lowered to the limit position as the linkage screw 73 rotates, the linkage seat 8 slides along the distribution direction of the first limiting rod 13 during the process until the anti-slip claws 9 are pressed against the work surface.

[0044] It is worth mentioning that the work surface referred to in this application document may refer to common contact surfaces of the oxygen concentrator, such as the ground, the desktop, and the floor of the medical compartment.

[0045] When the anti-skid claws 9 are gripped on the ground, the friction between the entire oxygen generator and the work surface can be increased. According to work requirements, anti-skid pads can be installed on the anti-skid claws 9 to further enhance the friction, which can effectively prevent the oxygen generator from sliding and deflecting in the working state, thereby ensuring the stability of the oxygen generator.

[0046] Example 2: Figure 7-10 As shown, on the basis of Example 1, the portion of the driving screw 7 located outside the housing 1 is provided with a threaded portion adapted to the pressure block 14, the housing 1 is provided with a guide seat 15 for accommodating the pressure block 14, the portion of the driving screw 7 located outside the housing 1 is provided on the guide seat 15, the guide seat 15 is provided with a second limiting rod 16 that penetrates the pressure block 14 and is parallel to the driving screw 7, when the push block 1 3 and the push block 2 4 move in opposite directions respectively, the moving direction of the pressure block 14 is the same as the moving direction of the push block 1 3. Therefore, when the push block 1 3 and the push block 2 4 push the body 2 to rise, the pressure block 14 moves away from the housing 1 and disengages from the limiting strip 25.

[0047] like Fig.10As shown, specifically, the elastic structure involved in Embodiment 1 includes a compression spring 27 and a guide rod 26 located inside it. A channel is provided on the receiving rod 24. The limiting strip 25 penetrates through the channel and extends to the left and right sides of the receiving rod 24. The guide rod 26 is arranged in the channel and penetrates through the limiting strip 25. One side of the limiting strip 25 away from the oxygen delivery hose 23 is connected to the inner wall of the channel through the compression spring 27. As the body 2 and the receiving rod 24 rise, the limiting strip 25 originally pressed by the pressure block 14 can be moved back to its original position, releasing its own pressing state on the oxygen delivery hose 23 and expanding the gap with the body 2, so as to facilitate the smooth removal of the oxygen delivery hose 23 in a multi-loop winding state.

[0048] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable oxygen concentrator, comprising a movable housing (1) and a plurality of universal wheels (11) arranged on the housing (1), characterized in that: The shell (1) contains a machine body (2) that can be raised and lowered, and a limiting unit that can move synchronously and in the opposite direction with the machine body (2) is provided at the lower position of the inner cavity of the shell (1). When the shell (1) moves to a specified position, the machine body (2) can rise from the shell (1) to a specified height to perform oxygen production. At the same time, the limiting unit descends and contacts the work surface below the shell (1); The invention also comprises an oxygen supply hose (23) arranged on the machine body (2) and a storage rod (24) for winding and storing the oxygen supply hose (23); the storage rod (24) is provided with a limit strip (25) which can be fitted with the oxygen supply hose (23) in a wound state; the limit strip (25) and the storage rod (24) are connected via an elastic structure; a pressure block (14) which can be pressed against the limit strip (25) is provided outside the shell (1); as the machine body (2) rises, the pressure block (14) which is originally pressed against the limit strip (25) moves laterally synchronously, so that the limit strip (25) which is originally fitted against the oxygen supply hose (23) can be elastically released, leaving space for taking out the oxygen supply hose (23).

2. The portable oxygen concentrator according to claim 1, characterized in that: The housing (1) is provided with a symmetrically arranged push block 1 (3) and a push block 2 (4), both of which are trapezoidal in structure, and the bottom end of the body (2) is recessed upward to form two symmetrical inclined surfaces, and the inclined edges of the push block 1 (3) and the push block 2 (4) are respectively opposite to the two inclined surfaces; The inclined sides of the push block 1 (3) and the push block 2 (4) are both provided with a pressure roller group (5), and the inclined surface of the machine body (2) is both provided with an inclined guide rail (21) adapted to the pressure roller group (5). When the push block 1 (3) and the push block 2 (4) move synchronously toward the center position in the shell (1), the pressure roller group (5) is respectively located in the corresponding inclined guide rail (21) and slides until the machine body (2) is located in the shell (1) and moves upward.

3. The portable oxygen concentrator according to claim 2, characterized in that: The shell (1) is provided with a transversely arranged driving screw (7), and the driving screw (7) is provided with positive and reverse threads in opposite directions on the part located on the inner side of the shell (1). The bottom ends of the push block 1 (3) and the push block 2 (4) are both provided with sliding seats (6), and the two sliding seats (6) are respectively arranged at the positive and reverse thread positions of the driving screw (7). When the driving screw (7) rotates, the two sliding seats (6), the push block 1 (3) and the push block 2 (4) can move in opposite directions respectively.

4. The portable oxygen concentrator according to claim 3, characterized in that: The machine body (2) is provided with a limiting roller group (22) outside, and the shell (1) is provided with a vertical guide rail (12) adapted to the limiting roller group (22). When the machine body (2) is located in the shell (1) and rises, the limiting roller group (22) is located in the vertical guide rail (12) and moves upward synchronously.

5. The portable oxygen concentrator according to claim 3, characterized in that: The driving screw rod (7) is provided with two bevel gears (71) of the same specification, and the bevel gears (71) are meshed with bevel gears (72) below each of the bevel gears, and the bevel gears (72) are provided with linkage screw rods (73) coaxially distributed therewith, and the linkage screw rods (73) are arranged on the housing (1) through bearings, and when the bevel gears (71) mesh with the bevel gears (72) and rotate, the linkage screw rods (73) rotate synchronously; The driving screw rod (7) is provided with a linkage gear (74), the linkage gear (74) is provided with a driving gear (75) meshing with the linkage gear, the driving gear (75) is provided with a driving shaft (76) matched with the linkage gear and a motor (77) capable of controlling the rotation of the driving shaft (76), a mounting seat matched with the driving gear (75), the driving shaft (76) and the motor (77) is provided inside the housing (1), and a controller connected with the motor (77) is provided outside the housing (1).

6. The portable oxygen concentrator according to claim 5, characterized in that: The limiting unit comprises two linkage seats (8) capable of ascending and descending movement, the two linkage seats (8) are respectively mounted on the linkage screw rod (73), and the bottom ends of the linkage seats (8) are each provided with an anti-slip claw (9); The housing (1) is provided with a first limiting rod (13), and the linkage seat (8) is sleeved outside the first limiting rod (13). When the linkage seat (8) descends to the limit position as the linkage screw (73) rotates, the anti-slip claw (9) is pressed against the work surface.

7. The portable oxygen concentrator according to claim 3, characterized in that: The driving screw (7) is provided with a threaded portion matched with the pressure block (14) on the portion located outside the shell (1); a guide seat (15) capable of accommodating the pressure block (14) is provided outside the shell (1); the driving screw (7) is provided with a portion located outside the shell (1) on the guide seat (15); a second limiting rod (16) penetrating the pressure block (14) and parallel to the driving screw (7) is provided inside the guide seat (15); when the push block 1 (3) and the push block 2 (4) move in opposite directions respectively, the moving direction of the pressure block (14) is the same as the moving direction of the push block 1 (3).

8. The portable oxygen concentrator according to claim 7, characterized in that: The elastic structure comprises a pressure spring (27) and a guide rod (26) located inside the elastic structure. A channel is provided on the receiving rod (24). The limit strip (25) passes through the channel and extends to the left and right sides of the receiving rod (24). The guide rod (26) is arranged in the channel and passes through the limit strip (25). The side of the limit strip (25) away from the oxygen supply hose (23) is connected to the inner wall of the channel through the pressure spring (27). As the machine body (2) and the receiving rod (24) rise, the limit strip (25) originally pressed by the pressure block (14) can be moved and reset, thereby expanding the gap between the limit strip (25) and the machine body (2).

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