Hierarchical linkage oxygen bag

Abstract

The utility model discloses a grading linkage oxygen bag which comprises a first cavity and a second cavity, a first air hole and a second air hole are formed in the first cavity and the second cavity, a first air column and a second air column are arranged in the first air hole and the second air hole, and the first air column and the second air column are installed at the two ends of a warping plate. A fulcrum joint is arranged in the middle of the warping plate, a first air hole is formed in the first air column, and second air hole assemblies matched with each other are arranged on the second air column and the second air hole. The oxygen in the first cavity is continuously exhausted through the first air hole, so that the pressure in the first cavity is smaller than that in the second cavity, and the pressure in the second cavity pushes the second air column to descend. When the second air column descends, the second air hole assembly works to release oxygen in the second cavity so as to compensate the gradually-weakened air supply amount in the first cavity, and therefore the overall externally-released oxygen flow is in a stable state.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a hierarchical linkage oxygen bag. Background Art

[0002] During the oxygen release process of a traditional oxygen bag, as the volume of oxygen inside it decreases, the oxygen flow rate will gradually decrease, especially near the end of oxygen release, due to the sharp drop in internal pressure, the oxygen supply will be relatively weak and insufficient. Therefore, traditional oxygen bags often use manual external pressurization to increase the overall oxygen flow rate. The typical method is to manually squeeze the oxygen bag. Further devices will add an external balloon, which is connected to the oxygen bag and squeezed from the outside to pressurize the inside.

[0003] However, this manual pressurization method is still prone to making the oxygen flow unstable due to uneven manpower application or uneven squeezing frequency, making it difficult to ensure a constant oxygen flow supply. Utility Model Content

[0004] The utility model aims to provide a hierarchical linkage oxygen bag to solve the problem in the prior art that it is difficult to ensure a constant oxygen flow supply due to uneven human pressure or uneven squeezing frequency.

[0005] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0006] A hierarchical linkage oxygen bag, comprising a first chamber and a second chamber independently arranged in the oxygen bag, wherein the first chamber and the second chamber are respectively provided with a first air hole and a second air hole, wherein a first air column and a second air column are respectively slidably arranged in the first air hole and the second air hole, wherein the first air column and the second air column are jointly mounted at two ends of a seesaw, wherein a fulcrum node is arranged in the middle of the seesaw, and the first air column and the second air column slide relatively in the first air hole and the second air hole with the fulcrum node as the center;

[0007] The first air column is provided with a first air hole, and the second air column and the second air hole are provided with a second air hole assembly that cooperates with each other, and the air permeability of the second air hole assembly gradually increases as the second air column moves downward.

[0008] As a preferred solution of the utility model, the lengths of the first air column and the second air column located in the first air hole and the second air hole in a balanced state are sufficient for them not to escape from the first air hole and the second air hole in a swinging state.

[0009] As a preferred solution of the utility model, the second air hole assembly includes trapezoidal air holes respectively arranged on the second air column and the second air hole, the small heads of the trapezoidal air holes on the second air column and the second air hole are arranged relatively to each other, and the overlapping area of ​​the two trapezoidal air holes gradually increases as the second air column slides downward.

[0010] As a preferred solution of the utility model, the end of the second air hole is set to a flat square, the second air column has the same shape as the second air hole and is slidably installed in the second air hole, and the trapezoidal air holes are respectively arranged on the surfaces of the second air hole and the second air column.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model uses the first air hole to continuously discharge the oxygen in the first chamber, so that the pressure in the first chamber is less than that in the second chamber, so that the pressure in the second chamber pushes the second air column to descend. When the second air column descends, the second air hole assembly works to release the oxygen in the second chamber to compensate for the gradually weakened air supply in the first chamber, so that the overall oxygen flow rate released is in a stable state.

[0013] Furthermore, the second air hole assembly gradually increases the air hole area as the second air column descends, so that when the internal pressure of the first chamber gradually decreases and the air supply of the first air hole gradually decreases, the second air hole assembly can gradually increase the air supply, and ultimately the oxygen bag can maintain the overall exhaust volume at a stable state throughout the oxygen release process, so as to avoid manual force to automatically adjust the oxygen release flow rate, so as to achieve the purpose of stabilizing the oxygen flow rate and reducing manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 The enlarged view of point A in the middle;

[0017] Figure 3 It is a structural schematic diagram of the second air vent assembly of the utility model.

[0018] The numbers in the figure represent the following:

[0019] 1. Oxygen bag; 2. First chamber; 3. Second chamber; 4. First air hole; 5. Second air hole; 6. First air column; 7. Second air column; 8. Seesaw; 9. Fulcrum node; 10. First air hole; 11. Second air hole assembly; 12. Trapezoidal air hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 3 As shown, the utility model provides a hierarchical linkage oxygen bag 1, comprising a first chamber 2 and a second chamber 3 independently arranged in the oxygen bag 1, the first chamber 2 and the second chamber 3 are respectively provided with a first air hole 4 and a second air hole 5, the first air column 6 and the second air column 7 are respectively slidably arranged in the first air hole 4 and the second air hole 5, the first air column 6 and the second air column 7 are jointly installed at both ends of a seesaw 8, a fulcrum node 9 is provided in the middle of the seesaw 8, and the first air column 6 and the second air column 7 slide relatively in the first air hole 4 and the second air hole 5 with the fulcrum node 9 as the center.

[0022] The first air column 6 is provided with a first air hole 10 (the first air hole 10 can be set through the middle part of the first air column 6, and it also passes through the rocker plate 8 to directly connect with the air supply pipe for external ventilation), and the second air column 7 and the second air hole 5 are provided with a second air hole assembly 11 that cooperates with each other, and the air permeability of the second air hole assembly 11 gradually increases as the second air column 7 moves downward.

[0023] like Figure 3 As shown ( Figure 3 The groove opened on the second air hole 5 is provided to show the trapezoidal air hole 12 on the second air column 7. This groove does not exist on the actual component. It is only used here to facilitate the understanding of the specific structure of the trapezoidal air hole 12). The second air hole assembly 11 includes trapezoidal air holes 12 respectively arranged on the second air column 7 and the second air hole 5. The small heads of the trapezoidal air holes 12 on the second air column 7 and the second air hole 5 are arranged opposite to each other, and the overlapping area of ​​the two trapezoidal air holes 12 gradually increases as the second air column 7 slides downward.

[0024] When the device is in use, two independent oxygen platforms can be combined to form an oxygen bag 1 having a first chamber 2 and a second chamber 3, or the internal space of an oxygen bag 1 can be separated by a partition to form a first chamber 2 and a second chamber 3, and the first chamber 2 and the second chamber 3 are provided with independent first air holes 4 and second air holes 5, and an air supply pipe is provided outside the first air holes 4 and the second air holes 5, and a three-way valve is provided on the air supply pipe. By opening or closing the three-way valve, the air supply pipe can release the oxygen in the chamber for use. In addition, a pressure display device can be provided on the air supply pipe to display the specific pressure value in the air supply pipe in real time.

[0025] Furthermore, the device sets the first air column 6 and the second air column 7 in the first air hole 4 and the second air hole 5, and installs the first air column 6 and the second air column 7 on the seesaw 8, and automatically adjusts the oxygen flow rate by using the lever principle formed by the seesaw 8 and the fulcrum node 9.

[0026] Specifically, in the initial state, the pressures in the first chamber 2 and the second chamber 3 are equal, the seesaw 8 is in a horizontal state, and the first air hole 10 is provided on the first air column 6. At this time, the oxygen in the first chamber 2 is released through the first air hole 10, thereby causing the pressure value in the first chamber 2 to drop. At this time, the pressure value in the second chamber 3 remains unchanged, thus breaking the equilibrium state at both ends of the seesaw 8, causing the first air column 6 to rise, and the second air column 7 to fall under the pressure in the second chamber 3. When the second air column 7 falls, the trapezoidal air holes 12 on the second air column 7 overlap with the trapezoidal air holes 12 on the second air hole 5, thereby forming an air hole that can be ventilated. At this time, the second chamber 3 will exhaust air to the outside through the overlapping trapezoidal air holes 12 to compensate for the pressure drop in the first chamber 2 at this time, thereby keeping the overall amount of oxygen entering the air delivery pipe constant.

[0027] Furthermore, when the oxygen in the first chamber 2 continues to ventilate outward through the first air hole 10, the pressure in the first chamber 2 will continue to decrease, and the second air column 7 will continue to fall driven by the pressure in the second chamber 3, so that the second air column 7 and the trapezoidal air hole 12 on the second air hole 5 will continue to overlap and gradually expand the overlapping area, so that the gradually increasing exhaust volume of the second chamber 3 can compensate for the gradually decreasing exhaust volume of the first chamber 2, thereby making the overall amount of oxygen entering the air supply pipe and discharged constant.

[0028] Specifically, the fulcrum node 9 can be arranged on the oxygen bag 1, and can be located between the first air hole 4 and the second air hole 5, and arranged in the middle of the seesaw 8 to form a seesaw 8 structure with the seesaw 8 having a lever principle.

[0029] Furthermore, the first air column 6 and the second air column 7 can be made of flexible materials during actual production so that they have a certain degree of deformation ability. When the seesaw 8 swings, they can slide in the first air hole 4 and the second air hole 5 with a slight deformation, rather than using completely hard materials to make them stuck in the first air hole 4 and the second air hole 5 and unable to slide.

[0030] Moreover, the length of the first air column 6 and the second air column 7 in the first air hole 4 and the second air hole 5 in the balanced state is sufficient to prevent them from slipping out of the first air hole 4 and the second air hole 5 in the swinging state. In other words, in actual production, the length of the first air column 6 and the second air column 7 can be slightly longer, and they are slidably arranged in the first air hole 4 and the second air hole 5 to ensure that their ends are always in the first air hole 4 and the second air hole 5. Among them, since the first air column 6 slides upward and the second air column 7 slides downward, the length of the column exposed outside the first air hole 4 of the first air column 6 in the initial state must be sufficient to prevent the first air column 6 from sliding up when the rocker 8 at this end contacts the end of the first air hole 4. As a result, the first air column 6 cannot slide up. Since the second air column 7 slides downward, the length of the second air column 7 arranged in the second air hole 5 in the initial state must be sufficient to avoid sliding down too much and slipping out of the second air hole 5.

[0031] Furthermore, the end of the second air hole 5 is set to be a flat square, the second air column 7 has the same shape as the second air hole 5 and is slidably installed in the second air hole 5, and the trapezoidal air holes 12 are respectively set on the surfaces of the second air hole 5 and the second air column 7. This arrangement can make the device more convenient to use, and the flat air holes can make the trapezoidal air holes 12 overlap more closely.

[0032] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A hierarchical linkage oxygen bag, characterized in that: The oxygen bag comprises a first chamber (2) and a second chamber (3) independently arranged in an oxygen bag (1); a first air hole (4) and a second air hole (5) are respectively arranged in the first chamber (2) and the second chamber (3); a first air column (6) and a second air column (7) are respectively slidably arranged in the first air hole (4) and the second air hole (5); the first air column (6) and the second air column (7) are installed together at two ends of a seesaw (8); a fulcrum node (9) is arranged in the middle of the seesaw (8); the first air column (6) and the second air column (7) slide relatively in the first air hole (4) and the second air hole (5) with the fulcrum node (9) as the center; The first air column (6) is provided with a first air hole (10), and the second air column (7) and the second air hole (5) are provided with a second air hole assembly (11) that cooperates with each other, and the air permeability of the second air hole assembly (11) gradually increases as the second air column (7) moves downward.

2. A hierarchical linkage oxygen bag according to claim 1, characterized in that: The lengths of the first air column (6) and the second air column (7) located in the first air hole (4) and the second air hole (5) in a balanced state are sufficient to prevent them from falling out of the first air hole (4) and the second air hole (5) in a swinging state.

3. A hierarchical linkage oxygen bag according to claim 2, characterized in that: The second air vent assembly (11) comprises trapezoidal air vents (12) respectively arranged on the second air column (7) and the second air hole (5), the small ends of the trapezoidal air vents (12) on the second air column (7) and the second air hole (5) are arranged opposite to each other, and the overlapping area of ​​the two trapezoidal air vents (12) gradually increases as the second air column (7) slides downward.

4. A hierarchical linkage oxygen bag according to claim 3, characterized in that: The end of the second air hole (5) is arranged in a flat square shape, the second air column (7) has the same shape as the second air hole (5) and is slidably installed in the second air hole (5), and the trapezoidal air holes (12) are respectively arranged on the surfaces of the second air hole (5) and the second air column (7).

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