Oxygen flow pressure management type oxygen bag

Abstract

The invention discloses an oxygen flow pressure management type oxygen bag which comprises an oxygen storage bag, an oxygen catheter arranged on the oxygen storage bag and ball valves fixedly arranged at the ends of the two sections of oxygen catheter, and further comprises an extension rod integrally formed at the top of a valve rod of each ball valve and a secondary control assembly arranged on a valve body of each ball valve and used for extruding the oxygen catheter. The oxygen catheter is in the state that the oxygen catheter is pressed by the secondary control assembly, when the oxygen storage bag is extruded to output oxygen through the oxygen catheter, output of the oxygen is controlled through the ball valve, and the double control effect on output of the oxygen in the oxygen catheter can be achieved through the secondary control assembly and the ball valve; through cooperation of the ball valve, the extension rod, the linkage assembly and the secondary control assembly, when the ball valve is opened by screwing a handle of the ball valve, the secondary control assembly is driven to open the pressed oxygen catheter, the effect of double opening of the oxygen catheter is achieved, and the secondary control assembly can be driven to be closed by screwing the ball valve to be closed. And the effect of double closing of the oxygen catheter is achieved.

Description

Technical Field

[0001] The present invention relates to an oxygen bag, and more specifically, to an oxygen bag with oxygen flow and pressure management. Background Art

[0002] An oxygen bag is a bag for storing oxygen, mainly composed of materials synthesized from non-toxic and non-harmful chemical substances. The oxygen bag is convenient to carry and simple to operate. The oxygen bag mainly consists of a bag body, an oxygen delivery tube, an oxygen switch, and a leak-proof sealing plug. When in use, the oxygen bag is manually squeezed to output oxygen from the oxygen delivery tube.

[0003] However, there are some problems in the prior art: if the regulator of the oxygen bag is pushed too far, it will cause a large opening degree of the oxygen tube and more oxygen output; if the regulator is pushed too little, it will cause a small opening of the oxygen tube and insufficient oxygen output. There is a lack of more precise control means for the opening and closing size of the upper oxygen tube of the oxygen bag. Therefore, we propose an oxygen bag with oxygen flow and pressure management. Summary of the Invention

[0004] An object of the present invention is to provide a new technical solution for an oxygen bag with oxygen flow and pressure management.

[0005] According to a first aspect of the present invention, there is provided an oxygen bag with oxygen flow and pressure management, including an oxygen storage bag, an oxygen delivery tube provided on the oxygen storage bag, and a ball valve fixedly provided at the ends of two sections of the oxygen delivery tube. It further includes an extension rod integrally formed on the top of the valve stem of the ball valve, a secondary control assembly provided on the valve body of the ball valve for squeezing the oxygen delivery tube, a linkage assembly provided on the extension rod and the secondary control assembly for driving the secondary control assembly, a lifting assembly provided on the secondary control assembly for adjusting the height of the linkage assembly, a rotational damping assembly provided on the lifting assembly for increasing damping to the linkage assembly, and a lifting damping assembly for buffering the secondary control assembly.

[0006] Optionally, the secondary control assembly includes a limit box fixedly provided on the outer circle of the valve body of the ball valve, a convex block integrally formed on the top of the limit box, a first hollow bolt threaded through the convex block, a pressing plate rotatably provided at the bottom of the first hollow bolt, T-shaped limit blocks integrally formed on both sides of the pressing plate, and first strip-shaped limit slots opened on both sides of the limit box, and the T-shaped limit blocks movably pass through the first strip-shaped limit slots.

[0007] Optionally, a first bearing is fixedly provided on the top of the pressing plate, and the first hollow bolt fixedly passes through the inner ring of the first bearing.

[0008] Optionally, the linkage assembly includes a first insertion rod that is movably inserted into the first hollow bolt, limiting strips integrally formed on both sides of the first insertion rod, second strip-shaped limiting grooves formed on both sides of the inner wall of the first hollow bolt, a first gear fixedly arranged at the top of the first insertion rod, and a second gear fixedly arranged on the extension rod. The second gear meshes with the first gear, and the limiting strips are movably inserted into the second strip-shaped limiting grooves.

[0009] Optionally, the lifting assembly includes a limiting seat fixedly arranged at one end of the top of the bump, a T-shaped limiting sleeve movably sleeved on two support rods of the limiting seat, and a second bearing fixedly arranged at the end of the T-shaped limiting sleeve. The T-shaped limiting sleeve and the limiting seat are fixedly connected by a third bolt, and the first insertion rod fixedly passes through the inner ring of the second bearing.

[0010] Optionally, the rotational damping assembly includes a top plate fixedly arranged on the top of the limiting seat, a second hollow bolt threadedly passing through the top plate, a force-applying ring plate fixedly arranged at the bottom of the second hollow bolt, a second insertion rod movably passing through the second hollow bolt, a damping circular plate fixedly arranged at the bottom of the second insertion rod, and a first spring movably sleeved on the second insertion rod. The first spring is located between the force-applying ring plate and the damping circular plate, and the damping circular plate presses against the first gear.

[0011] Optionally, the lifting damping assembly includes fixing plates fixedly arranged at the bottom and top of both sides of the limiting box and a fixing rod fixedly arranged between the two fixing plates. The T-shaped limiting block is movably sleeved on the fixing rod, and there is a second spring between the fixing plates at the top and bottom and the T-shaped limiting block, and it is movably sleeved on the fixing rod.

[0012] Optionally, a winding rod for squeezing the oxygen storage bag is fixedly arranged at the end of the oxygen storage bag.

[0013] Optionally, a plurality of threaded holes are formed in the limiting seat, the third bolt movably passes through the T-shaped limiting sleeve, and the third bolt is threadedly inserted into the threaded holes.

[0014] According to the embodiments disclosed in the present invention, the oxygen delivery tube is in a state of being pressed by the secondary control assembly. When squeezing the oxygen storage bag to output oxygen through the oxygen delivery tube, the output of oxygen is controlled by the ball valve. The secondary control assembly and the ball valve can achieve a dual control effect on the oxygen output in the oxygen delivery tube. Through the cooperation of the ball valve, the extension rod, the linkage assembly and the secondary control assembly, when the handle of the ball valve is turned to open the ball valve, the secondary control assembly can be driven to open the pressed oxygen delivery tube, achieving the effect of double-opening the oxygen delivery tube. Also, when the ball valve is turned to close, the secondary control assembly can be driven to close, achieving the effect of double-closing the oxygen delivery tube. The lifting assembly can raise the position where the first insertion rod is inserted into the first hollow bolt, facilitating the control of the degree to which the first hollow bolt and the pressing plate press on the oxygen delivery tube. When the first insertion rod is lifted high, the first insertion rod drives the first hollow bolt to rotate, causing the first hollow bolt to press down too low. At this time, the first hollow bolt will disengage from the insertion of the first insertion rod, so that the first hollow bolt will not continue to press down under the rotation of the first gear, achieving the effect of precise control of the degree to which the pressing plate presses on the oxygen delivery tube. The rotation damping assembly can adjust the effect of increasing and decreasing the rotation resistance of the first gear, preventing the handle of the ball valve from driving the second gear to turn the first gear suddenly more or less, increasing the tolerance rate of the sudden increase or decrease of the opened oxygen channel in the oxygen delivery tube. When the first bearing presses down and lifts up, the lifting damping assembly suppresses the speed of the pressing plate pressing down and lifting up, preventing the pressing plate from pressing down and lifting up too fast, and preventing the sudden increase or decrease of oxygen output. And when the first hollow bolt disengages from the first insertion rod and the first hollow bolt is manually controlled, the lifting damping assembly can prevent the first hollow bolt from driving the pressing plate to press down too fast or too slow. The higher the degree of lifting and pressing down of the pressing plate, the stronger the deceleration and buffering effect of the lifting damping assembly;

[0015] Two second springs are pressed against the middle of the two fixing plates, exerting pressure on the upper and lower parts of the T-shaped limiting block on the fixing rod. The cooperation of the first strip-shaped limiting groove and the T-shaped limiting block can limit the pressing plate. The second bearing and the T-shaped limiting sleeve can facilitate the raising and lowering of the position of the first insertion rod in the first hollow bolt. The cooperation of the T-shaped limiting sleeve, the third bolt and the limiting seat is convenient for controlling the height of the second bearing. The threaded hole and the third bolt are convenient for limiting the height of the T-shaped limiting sleeve. The cooperation of the second bearing and the first insertion rod is convenient for the first insertion rod and the first gear to rotate. Through the cooperation of the second hollow bolt, the second insertion rod, the force borrowing ring piece, the damping circular plate and the first spring, it is convenient to control the force of the damping circular plate pressing on the first gear. The winding rod is convenient for winding and squeezing the oxygen storage bag, so as to squeeze out oxygen through the oxygen delivery tube.

[0016] Other features and advantages of the present invention will become clear through the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an oxygen bag of oxygen flow pressure management type;

[0019] Figure 2 It is a schematic diagram of a partial three-dimensional structure of an oxygen bag of oxygen flow pressure management type;

[0020] Figure 3 It is a schematic diagram of a partial three-dimensional structure of an oxygen bag of oxygen flow pressure management type;

[0021] Figure 4 A schematic diagram of a partial explosion structure of an oxygen flow pressure management type oxygen bag;

[0022] Figure 5 A schematic diagram of a partial explosion structure of an oxygen flow pressure management type oxygen bag;

[0023] Figure 6 A schematic diagram of a partial explosion structure of an oxygen flow pressure management type oxygen bag;

[0024] Figure 7 A schematic diagram of a partial explosion structure of an oxygen flow pressure management type oxygen bag;

[0025] Figure 8 This is a schematic diagram of a partial three-dimensional structure of an oxygen flow pressure management oxygen bag.

[0026] The following are marked in the figure: 1. Secondary control assembly; 11. Limit box; 12. Bump; 13. First hollow bolt; 14. First bearing; 15. Press plate; 16. T-shaped limit block; 17. First strip limit groove; 2. Linkage assembly; 21. First plunger; 22. Second bearing; 23. First gear; 24. Second gear; 25. Limit strip; 26. Second strip limit groove; 3. Lifting assembly; 31. Limit seat; 3 2. T-shaped limit sleeve; 33. third bolt; 34. threaded hole; 4. rotary damping assembly; 41. second plug rod; 42. damping circular plate; 43. second hollow bolt; 44. lever ring; 45. first spring; 46. top plate; 5. lifting damping assembly; 51. fixing plate; 52. fixing rod; 53. second spring; 61. oxygen storage bag; 62. oxygen supply tube; 63. ball valve; 64. reel; 65. extension rod. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present invention, its application, or its use.

[0029] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.

[0030] In all examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of exemplary embodiments may have different values.

[0031] Embodiment 1

[0032] As Figure 1-8As shown in the figure, in this embodiment, through the cooperation of the ball valve 63, the oxygen storage bag 61, the extension rod 65, the secondary control assembly 1, the linkage assembly 2, the lifting assembly 3, the rotational damping assembly 4, and the lifting damping assembly 5, the problem that when the regulator of the oxygen bag is pushed too far, the oxygen pipe will be opened to a large extent and more oxygen will be output, and when the regulator is pushed too little, the oxygen pipe will be opened to a small extent and the output oxygen will be insufficient, and there is a lack of more precise control means for the opening and closing size of the upper oxygen pipe in the oxygen bag is solved. The present invention discloses an oxygen flow and pressure management type oxygen bag, which includes an oxygen storage bag 61, an oxygen delivery pipe 62 provided on the oxygen storage bag 61, and a ball valve 63 fixedly provided at the end of two sections of the oxygen delivery pipe 62. It also includes an extension rod 65 integrally formed on the top of the valve stem of the ball valve 63, a secondary control assembly 1 provided on the valve body of the ball valve 63 for squeezing the oxygen delivery pipe 62, a linkage assembly 2 provided on the extension rod 65 and the secondary control assembly 1 for driving the secondary control assembly 1, a lifting assembly 3 provided on the secondary control assembly 1 for adjusting the height of the linkage assembly 2, a rotational damping assembly 4 provided on the lifting assembly 3 for adding damping to the linkage assembly 2, and a lifting damping assembly 5 for buffering the secondary control assembly 1; the oxygen delivery pipe 62 is in a state of being pressed by the secondary control assembly 1. When squeezing the oxygen storage bag 61 to output oxygen through the oxygen delivery pipe 62, the output of oxygen is controlled by the ball valve 63. The double control effect of the oxygen output in the oxygen delivery pipe 62 can be achieved through the secondary control assembly 1 and the ball valve 63. Through the cooperation of the ball valve 63, the extension rod 65, the linkage assembly 2, and the secondary control assembly 1, when the handle of the ball valve 63 is turned to open the ball valve 63, the secondary control assembly 1 can be driven to open the pressed oxygen delivery pipe 62, achieving the effect of double-opening the oxygen delivery pipe 62. Also, when the ball valve 63 is turned to close, the secondary control assembly 1 can be driven to close, achieving the effect of double-closing the oxygen delivery pipe 62.

[0033] The secondary control assembly 1 includes a limit box 11 fixedly provided on the outer circle of the valve body of the ball valve 63, a convex block 12 integrally formed on the top of the limit box 11, a first hollow bolt 13 threadedly passing through the convex block 12, a pressing plate 15 rotatably provided at the bottom of the first hollow bolt 13, T-shaped limit blocks 16 integrally formed on both sides of the pressing plate 15, and first strip-shaped limit grooves 17 opened on both sides of the limit box 11. The T-shaped limit blocks 16 movably pass through the first strip-shaped limit grooves 17; the cooperation of the first strip-shaped limit grooves 17 and the T-shaped limit blocks 16 has the effect of limiting the pressing plate 15. The second bearing 22 and the T-shaped limit sleeve 32 can facilitate raising and lowering the position of the first insertion rod 21 in the first hollow bolt 13.

[0034] A first bearing 14 is fixedly provided on the top of the pressing plate 15, and the first hollow bolt 13 fixedly passes through the inner ring of the first bearing 14.

[0035] The linkage assembly 2 includes a first plug rod 21 movably inserted into the first hollow bolt 13, a limiting strip 25 integrally formed on both sides of the first plug rod 21, a second strip-shaped limiting groove 26 opened on both sides of the inner wall of the first hollow bolt 13, a first gear 23 fixedly arranged on the top of the first plug rod 21 and a second gear 24 fixedly arranged on the extension rod 65, the second gear 24 is meshed with the first gear 23, and the limiting strip 25 is movably inserted into the second strip-shaped limiting groove 26; the cooperation between the second bearing 22 and the first plug rod 21 facilitates the rotation of the first plug rod 21 and the first gear 23, and the second gear 24 is driven to rotate by turning the handle of the ball valve 63, thereby driving the first gear 23, the first plug rod 21 and the first hollow bolt 13 to rotate.

[0036] The lifting assembly 3 includes a limiting seat 31 fixedly arranged at one end of the top of the protrusion 12, a T-shaped limiting sleeve 32 movably sleeved on the two support rods of the limiting seat 31, and a second bearing 22 fixedly arranged at the end of the T-shaped limiting sleeve 32. The T-shaped limiting sleeve 32 and the limiting seat 31 are fixedly connected by a third bolt 33, and the first insertion rod 21 is fixedly passed through the inner ring of the second bearing 22. The lifting assembly 3 is used to lift the first insertion rod 21 to insert into the first hollow bolt 13, so as to facilitate the control of the degree to which the first hollow bolt 13 and the pressure plate 15 are pressed on the oxygen supply pipe 62. When the first insertion rod 21 is lifted high, the first insertion rod 21 drives the first hollow bolt 13 to rotate so that when the first hollow bolt 13 is pressed down too low, the first hollow bolt 13 will be disengaged from the insertion of the first insertion rod 21, so that the first hollow bolt 13 will not continue to be pressed down under the rotation of the first gear 23, thereby achieving the effect of accurately controlling the degree to which the pressure plate 15 presses the oxygen delivery tube 62; the cooperation of the T-shaped limit sleeve 32, the third bolt 33 and the limit seat 31 facilitates the control of the height of the second bearing 22, and the threaded hole 34 and the third bolt 33 facilitate the height limitation of the T-shaped limit sleeve 32.

[0037] The rotary damping assembly 4 includes a top plate 46 fixedly arranged on the top of the limit seat 31, a second hollow bolt 43 threaded through the top plate 46, a lever ring 44 fixedly arranged at the bottom of the second hollow bolt 43, a second plug rod 41 movably passing through the second hollow bolt 43, a damping circular plate 42 fixedly arranged at the bottom of the second plug rod 41, and a first spring 45 movably sleeved on the second plug rod 41, the first spring 45 is located between the lever ring 44 and the damping circular plate 42, and the damping circular plate 42 presses against the first gear 23; the rotary damping assembly 4 is used to adjust the effect of increasing and decreasing the rotation resistance of the first gear 23, so as to prevent the handle of the ball valve 63 from driving the second gear 24 to twist the first gear 23 suddenly more or less, thereby increasing the fault tolerance rate of the oxygen channel opened in the oxygen supply pipe 62 suddenly becoming larger or smaller; through the cooperation of the second hollow bolt 43, the second plug rod 41, the lever ring 44, the damping circular plate 42 and the first spring 45, it is convenient to control the force of the damping circular plate 42 squeezing the first gear 23.

[0038] Embodiment 2

[0039] As Figure 1-8 shown, in this embodiment, in order to solve the problem that when the regulator of the existing oxygen bag is pushed too far, the opening degree of the oxygen tube will be relatively large, and more oxygen will be output; when the regulator is pushed too little, the opening of the oxygen tube will be relatively small, and the output oxygen will be insufficient. For the opening and closing size of the upper oxygen tube in the oxygen bag, there is a lack of more precise control means. Based on the same concept as in the above Embodiment 1, the oxygen flow and pressure management type oxygen bag further includes: The lifting damping assembly 5 includes fixing plates 51 fixedly arranged at the bottom and top of both sides of the limit box 11 and a fixing rod 52 fixedly arranged between the two fixing plates 51. The T-shaped limit block 16 is movably sleeved on the fixing rod 52. There is a second spring 53 between the fixing plates 51 at the top and bottom and the T-shaped limit block 16, and it is movably sleeved on the fixing rod 52; when the first bearing 14 presses down and lifts up, the lifting damping assembly 5 suppresses the speed of the pressing plate 15 pressing down and lifting up, preventing the pressing plate 15 from pressing down and lifting up too fast, preventing the sudden increase or decrease of oxygen output. And when the first hollow bolt 13 disengages from the first plug rod 21, when manually controlling the first hollow bolt 13, the lifting damping assembly 5 can prevent the first hollow bolt 13 from driving the pressing plate 15 to press down too fast or too slow. The higher the degree of the pressing plate 15 lifting up and pressing down, the stronger the deceleration and buffering effect of the lifting damping assembly 5; the two second springs 53 are pressed against the middle of the two fixing plates 51, exerting a pressure effect on the upper and lower parts of the T-shaped limit block 16 on the fixing rod 52.

[0040] A winding rod 64 for squeezing the oxygen storage bag 61 is fixedly arranged at the end of the oxygen storage bag 61; through the winding rod 64, it is convenient to wind and squeeze the oxygen storage bag 61, so as to squeeze out oxygen through the oxygen delivery tube 62.

[0041] A plurality of threaded holes 34 are formed in the limit seat 31. The third bolt 33 movably passes through the T-shaped limit sleeve 32, and the third bolt 33 is threadedly inserted into the threaded hole 34, which is convenient to adjust the height of the T-shaped limit sleeve 32.

[0042] The specific working principle is as follows: The oxygen storage bag 61 can be squeezed by the winding rod 64, so as to extrude oxygen from the oxygen delivery pipe 62; By turning the handle of the winding rod 64, oxygen passes through the oxygen delivery pipe 62. The extension rod 65 drives the second gear 24 to rotate, thereby driving the first gear 23 to rotate in the opposite direction, which drives the first insertion rod 21 and the first hollow bolt 13 to rotate, causing the first hollow bolt 13 to lift the first bearing 14 and the pressing plate 15, opening the pressing plate 15 that presses the oxygen delivery pipe 62. The more the handle of the ball valve 63 is opened, the more the pressing plate 15 is lifted, and the more oxygen can pass through the oxygen delivery pipe 62; On the contrary, the more the handle of the ball valve 63 is closed, the more the pressing plate 15 is pressed down, and the less oxygen passes through the oxygen delivery pipe 62, realizing the dual control of the opening and closing degree of the oxygen delivery pipe 62, and the control is more detailed and accurate;

[0043] By raising the T-shaped limit sleeve 32 and the second bearing 22, the depth of the first insertion rod 21 inserted into the first hollow bolt 13 is increased, and the degree of the pressing plate 15 being pressed down is controlled. The higher the first insertion rod 21 is raised, the lower the pressing plate 15 is pressed down. When the first insertion rod 21 is turned more, the first hollow bolt 13 will fall off the first insertion rod 21. At this time, the first hollow bolt 13 cannot be driven to press down continuously by the rotation of the first gear 23, achieving the effect of controlling the opening degree of the oxygen delivery pipe 62. At this time, if it is necessary to continue pressing down the oxygen delivery pipe 62, only the first hollow bolt 13 can be manually turned, or the height of the T-shaped limit sleeve 32 and the first insertion rod 21 can be reduced so that the first insertion rod 21 is inserted into the first hollow bolt 13 again;

[0044] The cooperation of the second spring 53, the fixed rod 52, the T-shaped limit block 16 and the fixed plate 51 is equivalent to providing damping for the rising and pressing down of the pressing plate 15. The cooperation of the second insertion rod 41, the second hollow bolt 43, the top plate 46, the force borrowing ring piece 44, the first spring 45 and the damping circular plate 42 is equivalent to providing damping for the rotation of the first gear 23, both of which prevent the pressing plate 15 from pressing down or lifting too fast, resulting in a sudden increase or decrease in the opening or closing of the oxygen delivery pipe 62 when oxygen flows in the oxygen delivery pipe 62, making the opening and closing control of the oxygen delivery pipe 62 more delicate and not likely to suddenly increase or decrease; The ball valve 63 is a plastic ball valve 63. Because the height of the second gear 24 is higher than that of the first gear 23, the first gear 23 can be adjusted up and down relative to the second gear 24. The limit box 11 is open and not sealed at the outlet of the oxygen delivery pipe 62, and the oxygen delivery pipe 62 is a flexible pipe, which is convenient for squeezing; Figure 8 The sunken part of the oxygen delivery pipe 62 is the state after preventing the pressing plate 15 from pressing down, and the locking third bolt 33 fixes the height;

[0045] It can be set that rotating the ball valve 63 half a turn corresponds to an oxygen flow rate of 1 L / min, and the lifting height of the linkage pressing plate 15 corresponds to 0.5 L / min;

[0046] The ball valve 63 is fully closed, the pressure plate 15 fully compresses the oxygen delivery pipe 62, and the flow rate is 0 L / min;

[0047] Slowly rotate the handle of the ball valve 63 to the half-open position. Assuming calibration is 1.5 L / min, at this time: the extension rod 65 drives the second gear 24 to rotate → the first gear 23 rotates in the reverse direction → the first plug rod 21 lifts the first hollow bolt 13 → the pressure plate 15 rises, partially releasing the oxygen delivery pipe 62;

[0048] Mechanical limit: When the first plug rod 21 disengages from the first hollow bolt 13, the pressure plate 15 stops moving to prevent over-adjustment, such as exceeding 4 L / min;

[0049] Dual adjustment: The ball valve 63 controls the basic flow rate for coarse adjustment, and the lifting assembly 3 fine-tunes through the pressure plate 15 for fine adjustment;

[0050] Safety buffer: The second spring 53 of the lifting damping assembly 5 ensures that the pressure plate 15 moves slowly to avoid sudden changes in the flow rate;

[0051] Improvement of the ball valve 63: A dial 0-5 gears is added to the valve stem handle, and each gear corresponds to a preset flow rate;

[0052] When rotating the ball valve, the extension rod 65 drives the second gear 24 to rotate. The gear transmission ratio is designed as 1:1.5. When the second gear 24 rotates 30° → the first gear 23 rotates 45° to magnify the fine adjustment accuracy;

[0053] The threaded holes 34 are graded. Five-level height holes H1-H5 are set on the limit seat 31. Each level corresponds to a height difference of 2 mm for the pressure plate 15 to lift and is fixed by the third bolt 33;

[0054] When the first plug rod 21 is lifted to H5, continuing to rotate the ball valve will cause the first hollow bolt 13 to disengage. At this time, the flow rate is locked at the maximum value, 7 L / min = ball valve 5th gear + H5 compensation.

[0055] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An oxygen bag with oxygen flow and pressure management, comprising an oxygen storage bag (61), an oxygen delivery tube (62) arranged on the oxygen storage bag (61), and a ball valve (63) fixedly arranged at the ends of two sections of the oxygen delivery tube (62), characterized in that, It further includes an extension rod (65) integrally formed at the top of the valve stem of the ball valve (63), a secondary control assembly (1) provided on the valve body of the ball valve (63) for extruding the oxygen delivery pipe (62), a linkage assembly (2) provided on the extension rod (65) and the secondary control assembly (1) for driving the secondary control assembly (1), a lifting assembly (3) provided on the secondary control assembly (1) for adjusting the height of the linkage assembly (2), a rotational damping assembly (4) provided on the lifting assembly (3) for increasing the damping of the linkage assembly (2), and a lifting damping assembly (5) for buffering the secondary control assembly (1).

2. The oxygen bag with oxygen flow and pressure management according to claim 1, characterized in that: The secondary control assembly (1) includes a limit box (11) fixedly provided on the outer circle of the valve body of the ball valve (63), a convex block (12) integrally formed on the top of the limit box (11), a first hollow bolt (13) threadedly passing through the convex block (12), a pressing plate (15) rotatably provided at the bottom of the first hollow bolt (13), T-shaped limit blocks (16) integrally formed on both sides of the pressing plate (15), and first strip-shaped limit grooves (17) opened on both sides of the limit box (11), and the T-shaped limit blocks (16) movably pass through the first strip-shaped limit grooves (17).

3. The oxygen bag with oxygen flow and pressure management according to claim 2, characterized in that: A first bearing (14) is fixedly provided on the top of the pressing plate (15), and the first hollow bolt (13) fixedly passes through the inner ring of the first bearing (14).

4. The oxygen bag with oxygen flow and pressure management according to claim 2, characterized in that: The linkage assembly (2) includes a first insertion rod (21) movably inserted into the first hollow bolt (13), limit strips (25) integrally formed on both sides of the first insertion rod (21), second strip-shaped limit grooves (26) opened on both inner walls of the first hollow bolt (13), a first gear (23) fixedly provided on the top of the first insertion rod (21), and a second gear (24) fixedly provided on the extension rod (65), the second gear (24) meshes with the first gear (23), and the limit strips (25) movably insert into the second strip-shaped limit grooves (26).

5. The oxygen bag with oxygen flow and pressure management according to claim 4, characterized in that: The lifting assembly (3) includes a limit seat (31) fixedly provided at one end of the top of the convex block (12), a T-shaped limit sleeve (32) movably sleeved on two support rods of the limit seat (31), and a second bearing (22) fixedly provided at the end of the T-shaped limit sleeve (32), the T-shaped limit sleeve (32) and the limit seat (31) are fixedly connected by a third bolt (33), and the first insertion rod (21) fixedly passes through the inner ring of the second bearing (22).

6. The oxygen bag with oxygen flow and pressure management according to claim 5, characterized in that: The rotational damping assembly (4) includes a top plate (46) fixedly provided on the top of the limit seat (31), a second hollow bolt (43) threadedly passing through the top plate (46), a force-applying ring plate (44) fixedly provided at the bottom of the second hollow bolt (43), a second insertion rod (41) movably passing through the second hollow bolt (43), a damping circular plate (42) fixedly provided at the bottom of the second insertion rod (41), and a first spring (45) movably sleeved on the second insertion rod (41), the first spring (45) is located between the force-applying ring plate (44) and the damping circular plate (42), and the damping circular plate (42) presses against the first gear (23).

7. The oxygen bag with oxygen flow and pressure management according to claim 2, characterized in that: The lifting damping assembly (5) includes fixing plates (51) fixedly arranged at the bottom and top of both sides of the limit box (11), and a fixing rod (52) fixedly arranged between the two fixing plates (51). The T-shaped limit block (16) is movably sleeved on the fixing rod (52). A second spring (53) is provided between the fixing plates (51) and the T-shaped limit block (16) at the top and bottom, and is movably sleeved on the fixing rod (52).

8. A kind of oxygen bag with oxygen flow and pressure management according to claim 1, characterized in that: An end of the oxygen storage bag (61) is fixedly provided with a winding rod (64) for extruding the oxygen storage bag (61).

9. The oxygen bag with oxygen flow and pressure management according to claim 5, characterized in that: A plurality of threaded holes (34) are formed in the limit seat (31). The third bolt (33) movably passes through the T-shaped limit sleeve (32), and the third bolt (33) is threadedly inserted into the threaded holes (34).

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