Mechanical oxygen supply device with pulse function

Abstract

The utility model discloses a mechanical oxygen supply device with a pulse function, which comprises a low-pressure valve body group, an upper cover group, a pulse gas control component, a pulse gas outlet joint and a trigger joint, the upper cover group is arranged on the upper side of the low-pressure valve body group, the low-pressure valve body group comprises a low-pressure valve body, and the pulse gas control component is arranged on the lower side of the low-pressure valve body. A pressure reduction cavity, a gas control cavity, a first control gas circuit, a second control gas circuit, a continuous oxygen supply gas circuit, a gas transmission gas circuit and a pulse gas circuit are arranged in the low-pressure valve body, the upper cover set comprises an upper cover and a gear adjusting assembly, and a continuous oxygen supply mode and a pulse oxygen supply mode can be selected through the gear adjusting assembly. The triggering connector senses the breathing state of a user, when the user inhales, oxygen in the pressure reduction cavity enters the air control cavity and is conveyed to the user through the pulse air path and the pulse air outlet connector, when the user exhales, no oxygen is conveyed to the user, the device adopts the synchronous triggering pulse oxygen supply function, and oxygen resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen supply devices, in particular to a mechanical oxygen supply device with a pulse function. Background Art

[0002] The oxygen supply valve is a valve device installed on the gas cylinder to decompress the oxygen in the gas cylinder and supply the decompressed oxygen to the patient.

[0003] At present, most of the oxygen supply valves equipped in portable oxygen cylinders on the market have only a single decompression opening and closing function, that is, when the oxygen supply valve is opened, oxygen is continuously supplied, and when it is closed, oxygen supply is immediately stopped. This oxygen supply method actually wastes a lot of oxygen in the portable oxygen cylinder. During the breathing process of a normal person, the time of inhalation and exhalation is different, and the inhalation process only accounts for 1 / 3 of the breathing process. If oxygen is supplied continuously, only 1 / 3 of the oxygen in the inhalation process is useful, and the rest of the oxygen is wasted.

[0004] Therefore, the oxygen supply method of the traditional oxygen supply valve reduces the oxygen breathing comfort of the user and causes a waste of oxygen resources, thereby increasing the use cost of the oxygen supply device. Summary of the invention

[0005] The utility model provides a mechanical oxygen supply device with a pulse function to overcome the above technical problems.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] A mechanical oxygen supply device with pulse function, comprising a low-pressure valve body group, an upper cover group, a pulse air control component, a pulse air outlet connector and a trigger connector;

[0008] The upper cover group is arranged on the upper side of the low-pressure valve body group, the low-pressure valve body group includes a low-pressure valve body, the low-pressure valve body is provided with a decompression chamber, an air control chamber, a first control air circuit, a second control air circuit, a continuous oxygen supply circuit, an air transmission circuit and a pulse air circuit, the upper cover group includes an upper cover and a gear adjustment component for controlling the on-off of the continuous oxygen supply circuit, a negative pressure chamber is provided inside the upper cover, the negative pressure chamber is connected to the trigger joint, one end of the first control air circuit is connected to the negative pressure chamber, and the other end is connected to the air control chamber, one end of the second control air circuit is connected to the air control chamber, and the other end is connected to the decompression chamber;

[0009] One end of the pulse gas circuit is connected to the gas control cavity, and the other end is connected to the pulse gas outlet connector;

[0010] One end of the continuous oxygen supply circuit is connected to the decompression chamber, and the other end is connected to the trigger joint;

[0011] One end of the gas transmission path is connected to the decompression chamber, and the other end is connected to the gas control chamber;

[0012] When the gear adjustment component controls the continuous oxygen supply circuit to be disconnected, the pulse gas control component can control the first control gas circuit, the second control gas circuit and the pulse gas circuit to be opened during inhalation, and can control the first control gas circuit, the second control gas circuit and the pulse gas circuit to be disconnected during exhalation.

[0013] Furthermore, the pulse air control component includes a negative pressure cavity diaphragm and an air control cavity diaphragm, the negative pressure cavity diaphragm is arranged at the bottom of the negative pressure cavity, and the air control cavity diaphragm is arranged at the bottom of the air control cavity.

[0014] Furthermore, it also includes a high-pressure valve body, which is arranged on the lower side of the low-pressure valve body group, and the lower end of the high-pressure valve body is provided with a high-pressure valve body air inlet, and the high-pressure valve body air inlet is connected to the high-pressure oxygen cylinder, and the upper end of the high-pressure valve body is provided with a high-pressure valve body air outlet, and the bottom end of the low-pressure valve body is provided with a mounting groove, and the mounting groove is arranged on the lower side of the outer edge of the high-pressure valve body air outlet, and a plurality of threaded holes are evenly distributed around the mounting groove, and the mounting groove and the outer edge of the high-pressure valve body air outlet are fixed by means of set screws.

[0015] Furthermore, a central mounting groove and an adjusting sink groove are provided on the upper side of the upper cover, an adjusting mounting hole is provided on the side of the upper cover, and an air path a and an air path b are provided inside the upper cover, one end of the air path a is connected to the adjusting mounting hole cavity, the other end of the air path a is connected to the negative pressure cavity, one end of the air path b is connected to the adjusting mounting hole cavity, and the other end of the air path b is connected to the continuous oxygen supply path, the gear adjustment component includes an adjusting switch, an adjusting valve stem, a compression spring and an adjusting pressure cap, the adjusting switch is arranged in the central mounting groove, the The regulating switch can rotate around its central axis, and the end of the regulating switch can rotate in the regulating groove. The side wall of the regulating switch is provided with a first arc-shaped groove and a second arc-shaped groove, and the depth of the first arc-shaped groove is greater than the depth of the second arc-shaped groove. The regulating valve stem is arranged in the regulating mounting hole, and the end of the regulating valve stem can be adjusted in the first arc-shaped groove or the second arc-shaped groove. The regulating pressure cap is arranged at the end of the regulating mounting hole, one end of the compression spring abuts against the regulating pressure cap, and the other end of the compression spring abuts against the regulating valve stem.

[0016] Furthermore, the gear adjustment assembly also includes an O-ring, and the O-ring is arranged between the regulating valve stem and the side wall of the regulating mounting hole.

[0017] Furthermore, it also includes a pressure reducing mechanism, which is arranged between the low-pressure valve body group and the high-pressure valve body, one end of the pressure reducing mechanism is connected to the air outlet of the high-pressure valve body, and the other end of the pressure reducing mechanism is connected to the pressure reducing chamber.

[0018] Furthermore, the second control air circuit is connected to the decompression chamber through the first airway and the second airway, the first airway is divided into two sections of airways with different diameters, the second control air circuit and the continuous oxygen supply circuit are connected to the small diameter section of the first airway, and the second airway is connected to the large diameter section of the first airway.

[0019] Furthermore, the low-pressure valve body also includes a current limiting switch, which is connected to the end of the large diameter section of the first air channel. The current limiting switch includes an adjusting wheel, a valve stem and a pressure cap. The adjusting wheel is arranged at one end of the valve stem, and the other end of the valve stem is provided with a conical surface adjusting rod. The conical surface adjusting rod is arranged at the diameter change part of two sections of the first air channel with different diameters. The valve stem passes through the pressure cap, and the pressure cap is fixedly connected to the side wall of the low-pressure valve body.

[0020] Furthermore, the conical surface adjustment rod is connected to the large diameter section of the first airway via threads.

[0021] Furthermore, the high-pressure valve body comprises a high-pressure switch valve, an oxygenation connector and a pressure gauge, and the high-pressure switch valve, the oxygenation connector and the pressure gauge are arranged on the side wall of the high-pressure valve body.

[0022] Beneficial effects: The utility model discloses a mechanical oxygen supply device with a pulse function, which can select a continuous oxygen supply mode and a pulse oxygen supply mode through a gear adjustment component. When the pulse oxygen supply mode is used, the trigger connector is used to sense the user's exhalation and inhalation status. When the user inhales, the oxygen in the decompression chamber enters the air control chamber, and is delivered to the user through the pulse air path and the pulse air outlet connector. When the user exhales, no oxygen is delivered to the user. The device adopts a synchronous trigger pulse oxygen supply function, which provides oxygen when the user inhales and turns off the oxygen supply when the user exhales, thereby saving oxygen resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a first-view structural schematic diagram of a mechanical oxygen supply device with a pulse function disclosed in an embodiment of the utility model;

[0025] Figure 2 It is a second perspective structural schematic diagram of a mechanical oxygen supply device with pulse function disclosed in an embodiment of the utility model;

[0026] Figure 3 It is a cross-sectional view of a mechanical oxygen supply device with pulse function disclosed in an embodiment of the utility model;

[0027] Figure 4 It is a schematic diagram of the installation of a low-pressure valve body and a high-pressure valve body in a mechanical oxygen supply device with a pulse function disclosed in an embodiment of the utility model;

[0028] Figure 5 for Figure 3 A partial enlarged view of part A;

[0029] Figure 6 Schematic diagram of the internal airway of a low-pressure valve body in a mechanical oxygen supply device with pulse function disclosed in an embodiment of the utility model Figure 1 ;

[0030] Figure 7 Schematic diagram of the internal airway of a low-pressure valve body in a mechanical oxygen supply device with pulse function disclosed in an embodiment of the utility model Figure 2 ;

[0031] Figure 8 It is a schematic diagram of the installation of a current limiting switch in a mechanical oxygen supply device with a pulse function disclosed in an embodiment of the utility model;

[0032] Fig. 9 It is a schematic diagram of the structure of the regulating switch of the gear adjustment component of a mechanical oxygen supply device with a pulse function disclosed in an embodiment of the utility model;

[0033] Fig.10 It is a schematic diagram of the state of the regulating valve stem when the gear adjustment switch of a mechanical oxygen supply device with a pulse function disclosed in an embodiment of the utility model is in the pulse gear;

[0034] Fig.11 It is a schematic diagram of the state of the regulating valve stem when the gear adjustment switch in a mechanical oxygen supply device with a pulse function disclosed in an embodiment of the utility model is in a continuous gear position;

[0035] In the figure: 1, high-pressure valve body; 11, high-pressure valve body air outlet; 12, high-pressure switch valve; 13, oxygenation connector; 14, pressure gauge; 15, high-pressure valve body air inlet; 2, pressure reducing mechanism; 3, low-pressure valve body group; 31, low-pressure valve body; 311, pressure reducing chamber; 312, air control chamber; 313, first control air circuit; 314, second control air circuit; 315, continuous oxygen supply circuit; 316, air transmission circuit; 317, mounting groove; 317a, threaded hole; 318, first air channel; 319, second air channel; 320, pulse air channel; 32, current limiting switch; 321, adjusting wheel; 322, valve stem; 3221, conical surface adjusting rod; 323, pressure cap; 4. Upper cover assembly; 41. Upper cover; 411. Center mounting groove; 412. Adjustment sink groove; 413. Adjustment mounting hole; 414. Air path a; 415. Air path b; 416. Negative pressure chamber; 42. Gear adjustment assembly; 421. Adjustment switch; 421a. First arc groove; 421b. Second arc groove; 422. Adjustment valve stem; 422a. Semicircular head; 422b. Compression spring positioning rib; 423. Compression spring; 424. Adjustment cap; 4241. Adjustment cap mounting groove; 425. O-ring; 5. Pulse air control assembly; 51. Negative pressure chamber diaphragm; 52. Air control chamber diaphragm; 6. Pulse air outlet connector; 7. Trigger connector; 8. Set screw. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0037] This embodiment provides a mechanical oxygen supply device with a pulse function, such as Figure 1-6 As shown, it includes a low-pressure valve body group 3, an upper cover group 4, a pulse air control component 5, a pulse air outlet connector 6 and a trigger connector 7;

[0038] The upper cover group 4 is arranged on the upper side of the low-pressure valve body group 3, and the low-pressure valve body group 3 includes a low-pressure valve body 31. A decompression chamber 311, an air control chamber 312, a first control air circuit 313, a second control air circuit 314, a continuous oxygen supply circuit 315, an air transmission circuit 316 and a pulse air circuit 320 are arranged inside the low-pressure valve body 31. The upper cover group 4 includes an upper cover 41 and a gear adjustment component 42 for controlling the on-off of the continuous oxygen supply circuit 315. A negative pressure chamber 416 is arranged inside the upper cover 41, and the negative pressure chamber 416 is connected to the trigger joint 7. One end of the first control air circuit 313 is connected to the negative pressure chamber 416, and the other end is connected to the air control chamber 312. One end of the second control air circuit 314 is connected to the air control chamber 312, and the other end is connected to the decompression chamber 311.

[0039] One end of the pulse gas circuit 320 is connected to the gas control cavity 312, and the other end is connected to the pulse gas outlet connector 6;

[0040] One end of the continuous oxygen supply circuit 315 is connected to the decompression chamber 311, and the other end is connected to the trigger connector 7;

[0041] One end of the gas transmission path 316 is connected to the decompression chamber 311, and the other end is connected to the gas control chamber 312;

[0042] When the gear adjustment component 42 controls the continuous oxygen supply circuit 315 to be disconnected, the pulse gas control component 5 can control the first control gas circuit 313, the second control gas circuit 314 and the pulse gas circuit 320 to be opened during inhalation, and can control the first control gas circuit 313, the second control gas circuit 314 and the pulse gas circuit 320 to be disconnected during exhalation.

[0043] The pulse air outlet connector 6 is disposed on the side wall of the low-pressure valve body assembly 3 , and the trigger connector 7 is disposed on the side wall of the upper cover assembly 4 .

[0044] In a specific embodiment, the pulse air control component 5 includes a negative pressure chamber diaphragm 51 and an air control chamber diaphragm 52 . The negative pressure chamber diaphragm 51 is disposed at the bottom of the negative pressure chamber 416 , and the air control chamber diaphragm 52 is disposed at the bottom of the air control chamber 312 .

[0045] In this embodiment, the gear adjustment component 42 can select a continuous oxygen supply mode or a pulse oxygen supply mode according to actual conditions. When the device is in the pulse oxygen supply mode, the trigger joint 7 senses the user's inhalation and exhalation, and negative pressure is generated when the user inhales. At this time, the pressure on the upper side of the negative pressure chamber diaphragm 51 is less than the pressure on the lower side, and the negative pressure chamber diaphragm 51 moves upward, and the negative pressure chamber 416 is connected with the control air chamber 312. The pressure on the upper side of the control air chamber diaphragm 52 is less than the pressure on the lower side, and the control air chamber diaphragm 52 moves upward. At this time, the negative pressure chamber 416, the control air chamber 312 and the decompression chamber 311 are connected, and the oxygen in the decompression chamber 311 flows through the control chamber 312 in sequence. The air cavity 312 and the pulse air circuit 320 are delivered to the user through the pulse air outlet connector 6. When the patient stops inhaling, the pressure in the negative pressure cavity 416 increases, and the negative pressure cavity diaphragm 51 moves downward and resets, cutting off the connection between the negative pressure cavity 416 and the air control cavity 312. At this time, the oxygen in the decompression cavity 311 enters the air control cavity 312 through the air supply circuit 316, driving the air control cavity diaphragm 52 to move downward and reset. At this time, the connection between the air control cavity 312 and the pulse air circuit 320 is cut off, oxygen cannot enter the pulse air circuit 320, and the user's oxygen airflow is cut off, thereby achieving synchronous triggering with the breathing of the oxygen inhaler and saving oxygen resources.

[0046] When the user adopts the continuous oxygen supply mode, oxygen flows through the continuous oxygen supply circuit 315 and the trigger connector 7 in sequence and is delivered to the user.

[0047] In a specific embodiment, Figure 1 , 2 4, it also includes a high-pressure valve body 1, which is arranged on the lower side of the low-pressure valve body group 3, and a high-pressure valve body air inlet 15 is provided at the lower end of the high-pressure valve body 1, and the high-pressure valve body air inlet 15 is communicated with a high-pressure oxygen cylinder, and a high-pressure valve body air outlet 11 is provided at the upper end of the high-pressure valve body 1, and a mounting groove 317 is provided at the bottom end of the low-pressure valve body 31, and the mounting groove 317 is arranged on the lower side of the outer edge of the high-pressure valve body air outlet 11, and a plurality of threaded holes 317a are evenly distributed around the circumference of the mounting groove 317, and the mounting groove 317 is fixed to the outer edge of the high-pressure valve body air outlet 11 by a set screw 8, which limits the displacement of the low-pressure valve body group 3 along its central axis direction, and the low-pressure valve body group 3 can rotate around its central axis, which is convenient for use.

[0048] In a specific embodiment, Figure 9-11As shown, the upper side of the upper cover 41 is provided with a central mounting groove 411 and an adjusting sink groove 412, and the side of the upper cover 41 is provided with an adjusting mounting hole 413, and the adjusting mounting hole 413 is divided into two stepped holes with different apertures, and the middle part is transitioned by a conical surface, and the interior of the upper cover 41 is provided with an air path a414 and an air path b415, one end of the air path a414 is connected to the cavity on the small diameter side of the adjusting mounting hole 413, and the other end of the air path a414 is connected to the negative pressure cavity 416 One end of the gas circuit b415 is connected to the cavity on the large diameter side of the adjustment mounting hole 413, and the other end of the gas circuit b415 is connected to the continuous oxygen supply circuit 315. The gear adjustment component 42 includes an adjustment switch 421, an adjustment valve stem 422, a compression spring 423 and an adjustment pressure cap 424. The adjustment switch 421 is arranged in the central mounting groove 411, and the axial movement of the adjustment switch 421 is limited by the retaining spring. The adjustment switch 421 can rotate around its central axis. The end of the switch 421 can rotate in the adjusting groove 412. The side wall of the adjusting switch 421 is provided with a first arc groove 421a and a second arc groove 421b, which correspond to the pulse oxygen supply mode and the continuous oxygen supply mode respectively. The depth of the first arc groove 421a is greater than the depth of the second arc groove 421b. The adjusting valve stem 422 is arranged in the adjusting mounting hole 413. The adjusting valve stem 422 is placed in the adjusting mounting hole 413. The adjusting valve stem 422 is composed of three sections of rods with different diameters. The diameter of the middle section is the smallest, the diameter of the front section close to the regulating switch 421 is slightly larger than the diameter of the middle section, and the diameter of the rear section away from the regulating switch 421 is the largest. The front section of the regulating valve stem 422 is located within the small diameter of the regulating mounting hole 413, and the rear section of the regulating valve stem 422 is located within the large diameter of the regulating mounting hole 413. The front end of the regulating valve stem 422 is a semicircular head 422a, which is engaged with the first arc groove 421a and the second arc groove 421b at different gear positions;The regulating pressure cap 424 is arranged at the end of the regulating mounting hole 413, and the regulating pressure cap mounting groove 4241 is arranged on the regulating pressure cap 424. One end of the compression spring 423 abuts against the regulating pressure cap mounting groove 4241, and the other end of the compression spring 423 abuts against the compression spring positioning rib 422b of the regulating valve stem 422. When the gear adjustment component 42 is rotated, when the semicircular head 422a is clamped in the first arc-shaped groove 421a, the gas path a414 is not connected with the gas path b415. At this time, In the pulse oxygen supply mode, as the gear adjustment component 42 rotates, when the semicircular head 422a is engaged with the inside of the second arc-shaped groove 421b, the gas path a414 is connected with the gas path b415, and oxygen passes through the decompression chamber 311, the second airway 319, between the conical surface adjustment rod 3221 and the first airway 318, the continuous oxygen supply circuit 315, the gas path b415, the gas path a414, the negative pressure chamber 416 and the trigger connector 7 in sequence, and is delivered to the user. ;

[0049] In a specific embodiment, Figure 10-11 As shown, the gear adjustment assembly 42 further includes an O-ring 425 , and the O-ring 425 is disposed between the regulating valve stem 422 and the side wall of the regulating mounting hole 413 , and the O-ring performs a sealing function to prevent gas leakage.

[0050] In a specific embodiment, a decompression mechanism 2 is further included. The decompression mechanism 2 is arranged between the low-pressure valve body group 3 and the high-pressure valve body 1. One end of the decompression mechanism 2 is connected to the high-pressure valve body air outlet 11, and the other end of the decompression mechanism 2 is connected to the decompression chamber 311. The decompression mechanism 2 reduces the pressure of the high-pressure oxygen to a pressure suitable for human inhalation. The high-pressure oxygen source enters through the high-pressure valve body air inlet 15, and enters the decompression chamber 311 after being reduced in pressure by the decompression mechanism 2.

[0051] In a specific embodiment, Figure 7 As shown, the second control air circuit 314 is connected to the decompression chamber 311 through the first air channel 318 and the second air channel 319. The first air channel 318 is divided into two air channels with different diameters. The second control air circuit 314 and the continuous oxygen supply circuit 315 are connected to the small diameter section of the first air channel 318, and the second air channel 319 is connected to the large diameter section of the first air channel 318.

[0052] In a specific embodiment, Figure 8As shown, the low-pressure valve body 3 also includes a current limiting switch 32, which is communicated with the end of the large-diameter section of the first air passage 318. The current limiting switch 32 includes an adjusting wheel 321, a valve stem 322 and a pressing cap 323. The adjusting wheel 321 is arranged at one end of the valve stem 322, and the other end of the valve stem 322 is provided with a conical surface adjusting rod 3221, and the conical surface adjusting rod 3221 is arranged at the diameter change position of the two sections of the first air passage 318 with different diameters. The valve stem 322 passes through the pressing cap 323, and the pressing cap 323 is fixedly connected to the side wall of the low-pressure valve body 31, and the conical surface small-diameter end of the conical surface adjusting rod 3221 is inserted into the small-diameter section of the first air passage 318. The large diameter end of the surface is arranged inside the large diameter section of the first air channel 318. Rotating the adjusting wheel 321 can drive the valve stem 322 to move along its axial direction. The oxygen output flow rate is adjusted by adjusting the gap between the conical surface adjusting rod 3221 and the first air channel 318. When the pulse oxygen supply mode is adopted, the oxygen in the decompression chamber 311 enters between the conical surface adjusting rod 3221 and the first air channel 318 through the second air channel 319, and then flows out through the second control air path 314. When the continuous oxygen supply mode is adopted, the oxygen in the decompression chamber 311 enters between the conical surface adjusting rod 3221 and the first air channel 318 through the second air channel 319, and then flows out through the continuous oxygen supply path 315.

[0053] In a specific embodiment, the conical surface adjustment rod 3221 is connected to the large diameter section of the first air channel 318 via threads.

[0054] In a specific embodiment, the high-pressure valve body 1 includes a high-pressure switch valve 12, an oxygenation connector 13 and a pressure gauge 14. The high-pressure switch valve 12, the oxygenation connector 14 and the pressure gauge 15 are arranged on the side wall of the high-pressure valve body 1. The high-pressure switch valve 12, the oxygenation connector 13 and the pressure gauge 14 are connected to the internal airway. The high-pressure switch valve 12 is used to control the opening and closing of oxygen in the high-pressure oxygen cylinder. When the oxygen in the high-pressure oxygen cylinder is insufficient, the oxygenation connector 13 is opened to fill the high-pressure oxygen cylinder with oxygen through the oxygenation connector 13. The pressure gauge 14 is used to observe the remaining gas pressure inside the cylinder.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A mechanical oxygen supply device with pulse function, characterized in that: It comprises a low-pressure valve body assembly (3), an upper cover assembly (4), a pulse air control assembly (5), a pulse air outlet connector (6) and a trigger connector (7); The upper cover group (4) is arranged on the upper side of the low-pressure valve body group (3); the low-pressure valve body group (3) comprises a low-pressure valve body (31); a decompression chamber (311), an air control chamber (312), a first control air circuit (313), a second control air circuit (314), a continuous oxygen supply circuit (315), an air transmission circuit (316) and a pulse air circuit (320) are arranged inside the low-pressure valve body (31); the upper cover group (4) comprises an upper cover (41) and a control chamber (312) for controlling the continuous oxygen supply circuit (315) an on-off gear adjustment component (42), a negative pressure chamber (416) is provided inside the upper cover (41), the negative pressure chamber (416) is connected to the trigger connector (7), one end of the first control air circuit (313) is connected to the negative pressure chamber (416), and the other end is connected to the control air chamber (312), one end of the second control air circuit (314) is connected to the control air chamber (312), and the other end is connected to the decompression chamber (311); One end of the pulse gas path (320) is connected to the gas control cavity (312), and the other end is connected to the pulse gas outlet connector (6); One end of the continuous oxygen supply path (315) is connected to the decompression chamber (311), and the other end is connected to the trigger connector (7); One end of the gas transmission path (316) is connected to the decompression chamber (311), and the other end is connected to the gas control chamber (312); When the gear adjustment component (42) controls the continuous oxygen supply circuit (315) to be disconnected, the pulse gas control component (5) can control the first control gas circuit (313), the second control gas circuit (314) and the pulse gas circuit (320) to be opened during inhalation, and can control the first control gas circuit (313), the second control gas circuit (314) and the pulse gas circuit (320) to be disconnected during exhalation.

2. A mechanical oxygen supply device with pulse function according to claim 1, characterized in that: The pulse air control component (5) comprises a negative pressure chamber diaphragm (51) and an air control chamber diaphragm (52), wherein the negative pressure chamber diaphragm (51) is arranged at the bottom of the negative pressure chamber (416), and the air control chamber diaphragm (52) is arranged at the bottom of the air control chamber (312).

3. A mechanical oxygen supply device with pulse function according to claim 1, characterized in that: It also includes a high-pressure valve body (1), the high-pressure valve body (1) is arranged on the lower side of the low-pressure valve body group (3), the lower end of the high-pressure valve body (1) is provided with a high-pressure valve body air inlet (15), the high-pressure valve body air inlet (15) is connected to a high-pressure oxygen cylinder, the upper end of the high-pressure valve body (1) is provided with a high-pressure valve body air outlet (11), the bottom end of the low-pressure valve body (31) is provided with a mounting groove (317), the mounting groove (317) is arranged on the lower side of the outer edge of the high-pressure valve body air outlet (11), the mounting groove (317) has a plurality of threaded holes (317a) evenly distributed around the circumference, and the mounting groove (317) is fixed to the outer edge of the high-pressure valve body air outlet (11) by means of a set screw (8).

4. A mechanical oxygen supply device with pulse function according to claim 1, characterized in that: The upper side of the upper cover (41) is provided with a central mounting groove (411) and an adjusting groove (412); the side of the upper cover (41) is provided with an adjusting mounting hole (413); the interior of the upper cover (41) is provided with an air path a (414) and an air path b (415); one end of the air path a (414) is connected to the cavity of the adjusting mounting hole (413); the other end of the air path a (414) is connected to the negative pressure cavity (416); one end of the air path b (415) is connected to the cavity of the adjusting mounting hole (413); the other end of the air path b (415) is connected to the continuous oxygen supply path (315); the gear adjustment component (42) comprises an adjusting switch (421), an adjusting valve stem (422), a compression spring (423) and an adjusting pressure cap (424); the adjusting switch (421) is arranged in the central mounting groove (411); The regulating switch (421) can rotate around its central axis, and the end of the regulating switch (421) can rotate in the regulating groove (412). The side wall of the regulating switch (421) is provided with a first arc-shaped groove (421a) and a second arc-shaped groove (421b), and the depth of the first arc-shaped groove (421a) is greater than the depth of the second arc-shaped groove (421b). The regulating valve stem (422) is arranged in the regulating mounting hole (413), and the end of the regulating valve stem (422) is adjustably arranged in the first arc-shaped groove (421a) or the second arc-shaped groove (421b). The regulating pressure cap (424) is arranged at the end of the regulating mounting hole (413), and one end of the compression spring (423) abuts against the regulating pressure cap (424), and the other end of the compression spring (423) abuts against the regulating valve stem (422).

5. A mechanical oxygen supply device with pulse function according to claim 4, characterized in that: The gear adjustment assembly (42) further comprises an O-ring (425), wherein the O-ring (425) is arranged between the adjustment valve stem (422) and the side wall of the adjustment mounting hole (413).

6. A mechanical oxygen supply device with pulse function according to claim 3, characterized in that: It also includes a pressure reducing mechanism (2), which is arranged between the low-pressure valve body group (3) and the high-pressure valve body (1), one end of the pressure reducing mechanism (2) is connected to the high-pressure valve body air outlet (11), and the other end of the pressure reducing mechanism (2) is connected to the pressure reducing chamber (311).

7. A mechanical oxygen supply device with pulse function according to claim 1, characterized in that: The second control air circuit (314) is connected to the decompression chamber (311) through the first air channel (318) and the second air channel (319); the first air channel (318) is divided into two sections of air channels with different diameters; the second control air circuit (314) and the continuous oxygen supply circuit (315) are connected to the small diameter section of the first air channel (318); and the second air channel (319) is connected to the large diameter section of the first air channel (318).

8. A mechanical oxygen supply device with pulse function according to claim 7, characterized in that: The low-pressure valve body group (3) also includes a current limiting switch (32), the current limiting switch (32) is connected to the end of the large-diameter section of the first air channel (318), the current limiting switch (32) includes an adjusting wheel (321), a valve stem (322) and a pressure cap (323), the adjusting wheel (321) is arranged at one end of the valve stem (322), the other end of the valve stem (322) is provided with a conical surface adjusting rod (3221), the conical surface adjusting rod (3221) is arranged at the diameter change position of two sections of the first air channel (318) with different diameters, the valve stem (322) passes through the pressure cap (323), and the pressure cap (323) is fixedly connected to the side wall of the low-pressure valve body (31).

9. A mechanical oxygen supply device with pulse function according to claim 8, characterized in that: The conical surface adjustment rod (3221) is connected to the large diameter section of the first air passage (318) via threads.

10. A mechanical oxygen supply device with pulse function according to claim 3, characterized in that: The high-pressure valve body (1) comprises a high-pressure switch valve (12), an oxygenation connector (13) and a pressure gauge (14); the high-pressure switch valve (12), the oxygenation connector (13) and the pressure gauge (14) are arranged on the side wall of the high-pressure valve body (1).

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