CN213839703U

CN213839703U - Cylinder valve structure of oxygen cylinder for respiration

Info

Publication number: CN213839703U
Application number: CN202022990067.8U
Authority: CN
Inventors: 丁峰
Original assignee: Lianyungang Lifeng Medical Oxygen Products Co ltd
Current assignee: Lianyungang Lifeng Medical Oxygen Products Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-07-30
Anticipated expiration: 2030-12-10

Abstract

A cylinder valve structure of a breathing oxygen cylinder comprises a valve body safety valve and an air outlet pipe fitting, wherein a valve core is arranged in the valve body, an inflating mechanism is arranged on one side of the valve body, the valve core comprises an adjusting seat, an adjusting spring, a knob, a valve core piston and a valve core seat, the valve core thimble, thimble spring and valve gap, the valve body epicoele is established on the upper portion of valve body, adjust the seat, regulating spring, the case piston is established at the valve body upper chamber, the valve gap is fixed at the opening part of valve body epicoele, it is connected with the knob to pass the valve gap on the seat of adjusting, adjust the seat and the junction spiro union of valve gap, establish the gas vent on the wall body of valve body epicoele and the position that lies in case piston top, establish case seat chamber in the valve body of valve body epicoele below, the case seat is fixed at case seat intracavity, establish case thimble chamber in the valve body of case seat chamber below, case thimble and thimble spring are established at case thimble intracavity, the position that the valve body lies in the mechanism of aerifing sets up the passageway of aerifing downwards. The structure is compact and the volume is small; the carrying and the use are convenient; the pressure reduction and flow control performance of the cylinder valve is improved.

Description

Cylinder valve structure of oxygen cylinder for respiration

Technical Field

The utility model belongs to the technical field of the cylinder valve, concretely relates to cylinder valve structure of oxygen cylinder is used in breathing.

Background

The oxygen cylinder is one of indispensable articles for use in hospitals, can promote the metabolic function of patients and has good treatment effect on cardiopulmonary function, and is mainly used in the medical field, but along with the development of society, the oxygen cylinder has been popularized in the lives of people, not only can play a daily health care role, play a role in improving the blood oxygen content, improving the sleep quality and the like, but also can ensure the life safety of people in a plateau oxygen-deficient environment, so that the development of miniaturization and portability of the oxygen cylinder is promoted, wherein the cylinder valve is one of the most main components of the oxygen cylinder, oxygen release and pressure relief are completed through the cylinder valve, even oxygen is oxygenated through the cylinder valve, and how to optimize the structure and integrate the function to ensure the miniaturization of the cylinder valve is a problem which is generally considered in the industry.

In the prior art, as the "high-purity high-pressure oxygen cylinder valve" disclosed in the chinese utility model patent publication No. CN207830584U, and as the "medical oxygen cylinder valve" related to the chinese utility model patent publication No. CN210290888U, these cylinder valves mainly have the following disadvantages: firstly, the structure is not compact and the volume is larger; secondly, the functionality is single, and the oxygen releasing and pressure releasing functions are generally realized; the service life is generally short due to the limitation of the valve core structure; pressure reduction and flow control effects of the cylinder valve are poor, the service time of the oxygen cylinder is greatly shortened, and the defects are that the portable oxygen cylinder is not convenient to use and cannot meet the requirements of consumers.

In view of the above, there is a need to design a cylinder valve structure of a breathing oxygen cylinder, which has a small volume, a compact structure, and a long service life, has functions of discharging oxygen, charging oxygen, and discharging pressure, can detect the pressure in the oxygen cylinder, and can effectively reduce the pressure of oxygen and control the flow. The applicant has therefore made an advantageous design, in the context of which the solution to be described below is made.

Disclosure of Invention

The utility model aims at providing a cylinder valve structure of oxygen cylinder for breathing helps improving valve structure and makes the valve body compacter reduce whole volume and increase of service life to reduce oxygen pressure and flow control with the live time of extension oxygen cylinder through valve structure, the functional messenger oxygen cylinder's that is favorable to integrating the valve body carries and uses more conveniently.

The utility model aims at achieving the bottle valve structure of oxygen cylinder is used in breathing like this, including a valve body, one set up the relief valve on valve body right side and one set up the pipe fitting of giving vent to anger in valve body one side, its characterized in that: a valve core is arranged in the valve body, an inflating mechanism is arranged on one side of the valve body, the valve core comprises an adjusting seat, an adjusting spring arranged below the adjusting seat, a knob fixed at the upper end of the adjusting seat, a valve core piston arranged below the adjusting spring, a valve core seat fixed in the middle of the valve body and arranged below the valve core piston, a valve core thimble arranged below the valve core seat and matched with the valve core piston through the valve core seat, a thimble spring arranged below the valve core thimble, and a valve cover arranged at the upper end of the valve body and matched and connected with the adjusting seat, a valve body upper cavity is arranged in the middle of the upper part of the valve body in the height direction, the adjusting seat, the adjusting spring and the valve core piston are respectively arranged in the upper cavity of the valve body in a vertically movable manner, the valve cover is fixed at an opening above the valve body upper cavity, and the upper end of the adjusting seat is fixedly connected with the knob through the valve cover, the adjusting seat is in threaded connection with the valve cover and can be adjusted up and down on the valve cover, an air outlet hole communicated with an air outlet pipe fitting is formed in a position, located above the valve core piston, on one side wall body of the upper valve body, a valve core seat cavity is formed in the valve body below the upper valve body, the valve core seat is fixed in the valve core seat cavity, a valve core thimble cavity is formed in the valve body below the valve core seat cavity, the valve core thimble and the thimble spring are movably arranged in the valve core thimble cavity up and down, and an inflation channel is formed in the position, corresponding to the inflation mechanism, of the valve body downwards.

The utility model discloses a specific embodiment, the outside of valve body has been seted up one and has been given vent to anger at the position department for the venthole and connect the screw, the one end of the pipe fitting of giving vent to anger constitutes has one and is connected the outlet duct screw thread section that the screw cooperation is connected with giving vent to anger, the other end of the pipe fitting of giving vent to anger constitutes has a connection boss, the protruding rotatory boss of round that is equipped with in middle part of the pipe fitting of giving vent to anger.

In another specific embodiment of the present invention, a safety valve screw hole communicating with the valve core thimble cavity is provided at a position opposite to the safety valve on the outer side of the valve body, and a safety valve screw thread section cooperatively connected with the safety valve screw hole is provided at one end of the safety valve.

The utility model discloses a still another concrete embodiment, the outside of valve body is provided with a manometer in position department for case thimble chamber, and one side of this manometer constitutes there is a manometer connecting pipe and is formed with the screw thread on the lateral wall of manometer connecting pipe, the valve body on set up a manometer screw hole that communicates with case thimble chamber, the manometer connecting pipe pass through the screw thread and the manometer screw hole fixed connection of lateral wall, the manometer connecting pipe be provided with a manometer sealing washer in the bottom of being connected with manometer screw hole.

In a further embodiment of the present invention, an inflation screw hole communicating with the inflation channel is provided on the outer side of the valve body at a position opposite to the inflation mechanism, the inflation mechanism comprises an inflation valve seat which is arranged in the inflation screw hole and is in threaded connection with the inflation screw hole, an inflation valve which is arranged in the inflation valve seat and is in sliding connection with the inflation valve seat, an inflation spring which is arranged in the inflation valve seat and two ends of which are respectively propped against the inflation valve and the bottom of the inflation screw hole, and an inflation valve seat cover which is covered on one end part of the inflation valve seat, one end of the inflation valve seat is provided with an inflation hole, one end of the inflation valve is provided with an inflation valve rod which is arranged in the inflation hole in a penetrating way, the inflation valve rod is sleeved with an inflation valve rod sealing ring matched with the inflation hole, and an inflation valve seat sealing ring is arranged between the inflation valve seat and the bottom of the inflation screw hole.

In yet another specific embodiment of the present invention, the upper end of the adjusting seat is formed with an adjusting seat connecting rod, the middle portion of the valve cover is formed with a valve cover screw hole, the adjusting seat connecting rod extends upwardly through the valve cover screw hole, the adjusting seat connecting rod is formed with threads at the junction with the valve cover screw hole and is in threaded connection with the valve cover screw hole, the middle portion of the knob is sleeved on the upper end of the adjusting seat connecting rod, one side of the knob is provided with a knob screw which is fixedly connected with the adjusting seat connecting rod by passing through the knob from the side, one end of the valve cover extends downwardly and is in threaded connection with the opening of the upper cavity of the valve body, the middle of the valve cover is formed downwardly with a valve cover cavity, the adjusting seat is slidably disposed in the valve cover cavity, an adjusting seat sealing ring is disposed between the adjusting seat and the valve cover cavity, the lower end of the adjusting seat is formed with an adjusting seat spring cavity, the upper end of the adjusting spring is abutted against the top of the spring cavity of the adjusting seat, and a valve cover sealing ring is arranged between the valve cover and the upper cavity of the valve body.

The utility model discloses a and then a concrete embodiment, a piston hole has upwards been seted up in the centre of case piston, set up a piston inlet port with piston hole intercommunication on a lateral wall of case piston lower extreme, the bottom of case piston narrows down to constitute and has one with case thimble seat of thimble matched with, the upper end of case piston constitutes has a piston spring seat, adjusting spring's lower extreme supports and leans on the piston spring seat be provided with a case piston seal circle between the lateral wall of case piston and the valve body epicoele.

The utility model discloses a more and a concrete embodiment, through thread fixed connection between the lateral wall of the inside wall of case seat chamber and case seat, the case seat upwards constitute and have a case seat piston hole of stepping down, the case seat seted up one downwards with the thimble hole of stepping down of case seat piston intercommunication, case thimble upper end constitute and have a needle body, this needle body passes and extends into in the case seat piston hole of stepping down behind the thimble hole of stepping down, case seat and case thimble chamber between be provided with a case seal receptacle, the needle body passes case seal receptacle and makes the case thimble support and lean on the case seal receptacle, case thimble and case thimble chamber between be formed with the gapped confession gas and pass through, the upper end of thimble spring supports and leans on the lower extreme position department of the case thimble, and the lower extreme supports and leans on the bottom in case thimble chamber.

In yet another specific embodiment of the present invention, an air inlet channel is disposed at the bottom of the valve core thimble cavity, an air inlet filter cavity is formed at the lower end of the air inlet channel, and a filter sheet is disposed in the air inlet filter cavity.

In a still more specific embodiment of the present invention, the lower end of the valve body is formed with a circle of valve body connecting thread section connected to the oxygen cylinder.

The utility model adopts the above structure after, beneficial effect who has: firstly, the structure that the knob controls the valve core to work and the valve core structure of the ejector pin type are adopted, so that the whole structure of the valve body is more compact, the whole volume of the valve body is effectively reduced, and the ejector pin type valve core avoids the abrasion of the valve core and prolongs the service life of the valve body; secondly, because the structure that the inflating mechanism, the pressure gauge and the safety valve are integrated on the valve body is adopted, the functionality of the valve body is improved, and the oxygen cylinder is more convenient to carry and use; in addition, because the structure that the regulating spring pushes the valve core piston and the valve core piston is provided with the piston hole and the piston air inlet hole is adopted, when the oxygen pressure in the oxygen cylinder is higher, the pressure can be reduced by the mode that the valve core piston extrudes the regulating spring, the total flow of the oxygen is controlled by the piston hole and the piston air inlet hole, and the pressure reduction and flow control performance of the cylinder valve is effectively improved.

Drawings

Fig. 1 is a side sectional view of an embodiment of the present invention.

Fig. 2 is another side view of the embodiment of fig. 1.

In the figure: 1. the valve comprises a valve body, 11 valve body upper cavities, 111 air outlet holes, 1111 air outlet connecting screw holes, 12 valve core seat cavities, 13 valve core thimble cavities, 131 air inlet channels, 132 air inlet filter cavities, 14 air inlet channels, 15 air inlet screw holes, 16 safety valve screw holes, 17 pressure gauge screw holes and 18 valve body connecting screw threads; 2. the valve core, 21, the adjusting seat, 211, the adjusting seat connecting rod, 212, the adjusting seat spring cavity, 213, the adjusting seat sealing ring, 22, the adjusting spring, 23, the knob, 231, the knob screw, 24, the valve core piston, 241, the piston hole, 242, the piston air inlet hole, 243, the thimble seat, 244, the piston spring seat, 245, the valve core piston sealing ring, 25, the valve core seat, 251, the valve core seat piston abdicating hole, 252, the thimble abdicating hole, 253, the valve core sealing seat, 26, the valve core thimble, 261, the needle, 27, the thimble spring, 28, the valve cover, 281, the valve cover screw hole, 282, the valve cover cavity, 283, the valve cover sealing ring, 29 and the filter sheet; 3. the inflating mechanism comprises an inflating mechanism 31, an inflating valve seat 311, an inflating hole 311, an inflating valve 32, an inflating valve 321, an inflating valve rod 33, an inflating spring 34, an inflating valve rod sealing ring 35, an inflating valve seat cover 36 and an inflating valve seat sealing ring; 4. a safety valve 41, a safety valve thread section; 5. a pressure gauge, 51 a pressure gauge connecting pipe and 52 a pressure gauge sealing ring; 6. an air outlet pipe fitting, 61 an air outlet pipe thread section, 62 a rotary boss and 63 a connecting boss.

Detailed Description

The following is a detailed description by way of example, but the description of the example is not intended to limit the scope of the present invention, and any equivalent changes made according to the present invention, which are merely formal and insubstantial, should be considered as technical solutions of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and back are given with respect to the position state of fig. 1, and thus should not be interpreted as limiting the technical solution provided by the present invention.

Referring to fig. 1 in combination with fig. 2, the present invention relates to a cylinder valve structure of a breathing oxygen cylinder, which includes a valve body 1, a safety valve 4 disposed on the right side of the valve body 1, and an air outlet pipe member 6 disposed on one side of the valve body 1.

As the technical point of the utility model, a valve core 2 is arranged in the valve body 1, an inflating mechanism 3 is arranged on one side of the valve body 1, the valve core 2 comprises an adjusting seat 21, an adjusting spring 22 arranged below the adjusting seat 21, a knob 23 fixed on the upper end of the adjusting seat 21, a valve core piston 24 arranged below the adjusting spring 22, a valve core seat 25 fixed in the middle of the valve body 1 and arranged below the valve core piston 24, a valve core thimble 26 arranged below the valve core seat 25 and passing through the valve core seat 25 to match with the valve core piston 24, a thimble spring 27 arranged below the valve core thimble 26, and a valve cover 28 arranged on the upper end of the valve body 1 and matched and connected with the adjusting seat 21, a valve body upper cavity 11 is arranged in the middle of the upper part of the valve body 1 in the height direction, the adjusting seat 21, the adjusting spring 22, the valve core piston 24 are respectively arranged in the valve body upper cavity 11 in a vertically movable manner, the valve cover 28 is fixed at an opening above the valve body upper cavity 11, the upper end of the adjusting seat 21 penetrates through the valve cover 28 and is fixedly connected with the knob 23, the joint of the adjusting seat 21 and the valve cover 28 is in threaded connection and can be adjusted up and down on the valve cover 28, an air outlet hole 111 communicated with the air outlet pipe fitting 6 is formed in a position on a sidewall body of the valve body upper cavity 11 and above the valve core piston 24, a valve core seat cavity 12 is formed in the valve body 1 below the valve body upper cavity 11, the valve core seat 25 is fixed in the valve core seat cavity 12, a valve core thimble cavity 13 is formed in the valve body 1 below the valve core seat cavity 12, the valve core thimble 26 and the thimble spring 27 are movably arranged in the valve core thimble cavity 13 up and down, and an inflation channel 14 is formed in the position of the valve body 1 relative to the inflation mechanism 3. The lower end of the valve body 1 is formed with a ring of valve body connecting thread section 18 connected with an oxygen cylinder, wherein the safety valve 4 is used as a necessary device in a pressure container, and the structure thereof belongs to the prior art and is not described again.

In this embodiment, an air outlet connection screw 1111 is disposed at a position opposite to the air outlet hole 111 on the outer side of the valve body 1, an air outlet pipe thread section 61 cooperatively connected with the air outlet connection screw 1111 is formed at one end of the air outlet pipe member 6, a connection boss 63 is formed at the other end of the air outlet pipe member 6, and a circle of rotation boss 62 is protruded at the middle portion of the air outlet pipe member 6. A safety valve screw hole 16 communicated with the valve core thimble cavity 13 is formed in the position, opposite to the safety valve 4, on the outer side of the valve body 1, and a safety valve thread section 41 matched and connected with the safety valve screw hole 16 is arranged at one end of the safety valve 4. The outer side of the valve body 1 is provided with a pressure gauge 5 at a position corresponding to the valve core thimble cavity 13, one side of the pressure gauge 5 is provided with a pressure gauge connecting pipe 51 and is provided with a thread on the outer side wall of the pressure gauge connecting pipe 51, the valve body 1 is provided with a pressure gauge threaded hole 17 communicated with the valve core thimble cavity 13, the pressure gauge connecting pipe 51 is fixedly connected with the pressure gauge threaded hole 17 through the thread on the outer side wall, and the pressure gauge connecting pipe 51 is provided with a pressure gauge sealing ring 52 at the bottom connected with the pressure gauge threaded hole 17.

Further, an inflation screw hole 15 communicated with the inflation channel 14 is formed at a position opposite to the inflation mechanism 3 on the outer side of the valve body 1, the inflation mechanism 3 comprises an inflation valve seat 31 arranged in the inflation screw hole 15 and in threaded connection with the inflation screw hole 15, an inflation valve 32 arranged in the inflation valve seat 31 and in sliding connection, an inflation spring 33 arranged in the inflation valve seat 31 and having two ends respectively abutting against the inflation valve 32 and the bottom of the inflation screw hole 15, and an inflation valve seat cover 35 covering one end of the inflation valve seat 31, one end of the inflation valve seat 31 is provided with an inflation hole 311, one end of the inflation valve 32 is provided with an inflation valve rod 321 penetrating into the inflation hole 311, an inflation valve stem sealing ring 34 matched with the inflation hole 311 is sleeved on the inflation valve stem 321, and an inflation valve seat sealing ring 36 is arranged between the inflation valve seat 31 and the bottom of the inflation screw hole 15.

Referring to fig. 1, an upper end of the adjusting seat 21 forms an adjusting seat connecting rod 211, a middle portion of the valve cover 28 forms a valve cover screw hole 281, the adjusting seat connecting rod 211 extends upward through the valve cover screw hole 281, the adjusting seat connecting rod 211 forms a screw thread at a connection position with the valve cover screw hole 281 and is in screw thread connection with the valve cover screw hole 281, a middle portion of the knob 23 is sleeved on the upper end of the adjusting seat connecting rod 211, one side of the knob 23 is provided with a knob screw 231, the knob screw 231 passes through the knob 23 from a side surface and is fixedly connected with the adjusting seat connecting rod 211, one end of the valve cover 28 extends downward and is in screw thread connection with an opening of the valve body upper cavity 11, a valve cover cavity 282 is formed downward in the middle of the valve cover 28, the adjusting seat 21 is slidably disposed in the valve cover cavity 282, an adjusting seat sealing ring 213 is disposed between the adjusting seat 21 and the valve cover cavity 282, the lower end of the adjusting seat 21 is provided with an adjusting seat spring cavity 212, the upper end of the adjusting spring 22 abuts against the top of the adjusting seat spring cavity 212, and a valve cover sealing ring 283 is arranged between the valve cover 28 and the valve body upper cavity 11.

Further, a piston hole 241 is formed upward in the middle of the spool piston 24, a piston air inlet hole 242 communicating with the piston hole 241 is formed on one side wall of the lower end of the spool piston 24, a thimble seat 243 matching with the spool thimble 26 is formed by narrowing the bottom of the spool piston 24, a piston spring seat 244 is formed on the upper end of the spool piston 24, the lower end of the adjusting spring 22 abuts against the piston spring seat 244, and a spool piston sealing ring 245 is arranged between the spool piston 24 and the side wall of the valve body upper chamber 11.

In this embodiment, the inner sidewall of the valve core housing 12 is fixedly connected to the outer sidewall of the valve core housing 25 by a screw thread, the valve core housing 25 is formed with a valve core housing piston relief hole 251 upward, the valve core housing 25 is formed with a needle relief hole 252 downward communicating with the valve core housing piston relief hole 251, the upper end of the valve core needle 26 is formed with a needle 261, the needle 261 passes through the needle receding hole 252 and then extends into the valve core seat piston receding hole 251, a valve core sealing seat 253 is arranged between the valve core seat 25 and the valve core thimble cavity 13, the needle 261 passes through the valve core sealing seat 253 to enable the valve core thimble 26 to abut against the valve core sealing seat 253, a gap is formed between the valve core thimble 26 and the valve core thimble cavity 13 for gas to pass through, and the upper end of the thimble spring 27 abuts against the lower end of the valve core thimble 26 and the lower end abuts against the bottom of the valve core thimble cavity 13. An air inlet channel 131 is formed at the bottom of the valve core thimble cavity 13, an air inlet filter cavity 132 is formed at the lower end of the air inlet channel 131, and a filter sheet 29 is arranged in the air inlet filter cavity 132.

Referring to fig. 1 in combination with fig. 2, the valve body 1 is in threaded connection with the mouth of the oxygen cylinder through the valve body connecting threaded section 18, when oxygen in the oxygen cylinder is insufficient, the inflation valve seat cover 35 is unscrewed, the oxygenation device is in butt joint with the inflation valve seat 31, the oxygenation device compresses the inflation spring 33 after pushing the inflation valve rod 321 and the inflation valve seat sealing ring 36 in the inflation hole 311 open, oxygen enters the oxygen cylinder through the inflation valve seat 31 and the inflation channel 14, after oxygenation is completed, the inflation spring 33 pushes the inflation valve rod 321 and the inflation valve seat sealing ring 36 to return to the original position under the action of the restoring force and seals the inflation hole 311, and a user can observe the pressure in the oxygen cylinder through the pressure gauge 5. When the pressure in the bottle is too high, the oxygen in the bottle can be automatically decompressed through the safety valve 4; when oxygen is required to be taken by the oxygen bottle, the knob 23 is screwed to enable the adjusting seat 21 to move downwards through the valve cover screw hole 281 on the valve cover 28, the adjusting seat 21 compresses the adjusting spring 22 and pushes the valve core piston 24 to move downwards by means of the pressure of the adjusting spring 22, the valve core piston 24 pushes the needle body 261 and the valve core thimble 26 to be separated from the valve core sealing seat 253 downwards, at the moment, the thimble spring 27 is compressed, oxygen in the oxygen bottle enters the valve body upper cavity 11 below the valve core piston 24 after passing through the filter sheet 29, the air inlet channel 131, the valve core thimble cavity 13, the valve core sealing seat 253, the thimble yielding hole 252 and the valve core piston yielding hole 251, then, the oxygen enters the valve body upper chamber 11 above the valve core piston 24 through the piston inlet hole 242 and the piston hole 241, and finally the oxygen is discharged through the outlet hole 111 and the outlet pipe member 6, thereby completing the oxygen release process. When oxygen inhalation is not needed, the knob 23 is reversely screwed to enable the adjusting seat 21 to move upwards through the valve cover screw hole 281 on the valve cover 28, the pressure applied on the adjusting spring 22 is reduced, the pressure of the thimble spring 27 overcomes the pressure of the adjusting spring 22 to push the valve core thimble 26 to move upwards and block the valve core sealing seat 253, and therefore the oxygen passage is cut off.

Claims

1. The utility model provides a bottle valve structure of oxygen cylinder for breathing, includes a valve body (1), a relief valve (4) and a setting of setting on valve body (1) one side give vent to anger pipe fitting (6), its characterized in that of setting on valve body (1) right side: a valve core (2) is arranged in the valve body (1), an inflating mechanism (3) is arranged on one side of the valve body (1), the valve core (2) comprises an adjusting seat (21), an adjusting spring (22) arranged below the adjusting seat (21), a knob (23) fixed at the upper end of the adjusting seat (21), a valve core piston (24) arranged below the adjusting spring (22), a valve core seat (25) fixed at the middle part of the valve body (1) and arranged below the valve core piston (24), a valve core thimble (26) arranged below the valve core seat (25) and penetrating through the valve core seat (25) to be matched with the valve core piston (24), a thimble spring (27) arranged below the valve core thimble (26) and a valve cover (28) arranged at the upper end of the valve body (1) and matched and connected with the adjusting seat (21), a valve body upper cavity (11) is arranged in the middle of the upper part of the valve body (1) in the height direction, the adjusting seat (21), the adjusting spring (22) and the valve core piston (24) are respectively and movably arranged in the upper valve body cavity (11) up and down, the valve cover (28) is fixed at an opening above the upper valve body cavity (11), the upper end of the adjusting seat (21) penetrates through the valve cover (28) to be fixedly connected with the knob (23), the connecting part of the adjusting seat (21) and the valve cover (28) is in threaded connection and can be adjusted up and down on the valve cover (28), an air outlet hole (111) communicated with the air outlet pipe fitting (6) is formed in the position on one side wall body of the upper valve body cavity (11) and above the valve core piston (24), a valve core seat cavity (12) is formed in the valve body (1) below the upper valve body cavity (11), the valve core seat (25) is fixed in the valve core seat cavity (12), a valve core thimble cavity (13) is formed in the valve body (1) below the valve core seat cavity (12), the valve core thimble (26) and the thimble spring (27) are movably arranged in the valve core thimble cavity (13) up and down, and the valve body (1) is provided with an inflation channel (14) downwards at a position corresponding to the inflation mechanism (3).

2. The cylinder valve structure of a cylinder for a breath oxygen cylinder according to claim 1, characterized in that the outer side of the valve body (1) is provided with an outlet connection screw hole (1111) at a position opposite to the outlet hole (111), one end of the outlet pipe member (6) is formed with an outlet pipe thread section (61) which is connected with the outlet connection screw hole (1111) in a matching manner, the other end of the outlet pipe member (6) is formed with a connection boss (63), and the middle part of the outlet pipe member (6) is convexly provided with a circle of rotary boss (62).

3. The cylinder valve structure of the cylinder for the oxygen for respiration as claimed in claim 1, characterized in that the outside of the valve body (1) is opened with a safety valve screw hole (16) communicating with the valve core thimble cavity (13) at a position corresponding to the safety valve (4), and one end of the safety valve (4) is provided with a safety valve thread section (41) which is matched and connected with the safety valve screw hole (16).

4. The cylinder valve structure of a cylinder for a breath oxygen cylinder according to claim 1, characterized in that a pressure gauge (5) is provided at a position opposite to the valve core thimble chamber (13) outside the valve body (1), one side of the pressure gauge (5) is formed with a pressure gauge connection tube (51) and a thread is formed on an outer sidewall of the pressure gauge connection tube (51), the valve body (1) is formed with a pressure gauge threaded hole (17) communicating with the valve core thimble chamber (13), the pressure gauge connection tube (51) is fixedly connected with the pressure gauge threaded hole (17) by the thread of the outer sidewall, and the pressure gauge connection tube (51) is provided with a pressure gauge sealing ring (52) at a bottom connected with the pressure gauge threaded hole (17).

5. The cylinder valve structure of an oxygen cylinder for respiration as claimed in claim 1, wherein the outer side of the valve body (1) is provided at a position opposite to the inflating mechanism (3) with an inflating screw hole (15) communicating with the inflating passage (14), the inflating mechanism (3) comprises an inflating valve seat (31) disposed in the inflating screw hole (15) and threadedly connected to the inflating screw hole (15), an inflating valve (32) disposed in the inflating valve seat (31) and slidably connected thereto, an inflating spring (33) disposed in the inflating valve seat (31) and having both ends respectively abutting against the inflating valve (32) and the bottom of the inflating screw hole (15), and an inflating valve seat cover (35) covering the end portion of the inflating valve seat (31), one end of the inflating valve seat (31) is provided with an inflating hole (311), one end of the inflating valve (32) is provided with an inflating valve rod (321) inserted in the inflating hole (311), an inflation valve rod sealing ring (34) matched with the inflation hole (311) is sleeved on the inflation valve rod (321), and an inflation valve seat sealing ring (36) is arranged between the inflation valve seat (31) and the bottom of the inflation screw hole (15).

6. The cylinder valve structure of the oxygen cylinder for respiration as claimed in claim 1, wherein the upper end of the adjusting seat (21) is formed with an adjusting seat connecting rod (211), the middle portion of the valve cover (28) is formed with a valve cover screw hole (281), the adjusting seat connecting rod (211) passes through the valve cover screw hole (281) and extends upward, the adjusting seat connecting rod (211) is formed with threads at the joint with the valve cover screw hole (281) and is in threaded connection with the valve cover screw hole (281), the middle portion of the knob (23) is sleeved on the upper end of the adjusting seat connecting rod (211), one side of the knob (23) is provided with a knob screw (231), the knob screw (231) passes through the knob (23) from the side surface and is fixedly connected with the adjusting seat connecting rod (211), one end of the valve cover (28) extends downward and is in threaded connection with the opening of the upper chamber (11) of the valve body, downwards constitute in the middle of this valve gap (28) and have a valve gap chamber (282), regulation seat (21) set up in valve gap chamber (282) with sliding from top to bottom adjust and be provided with one between seat (21) and the valve gap chamber (282) and adjust seat sealing washer (213), the lower extreme of adjusting seat (21) has been seted up one and has been adjusted seat spring chamber (212), adjusting spring (22) upper end support and lean on the top of adjusting seat spring chamber (212), valve gap (28) and valve body epicoele (11) between be provided with a valve gap sealing washer (283).

7. The cylinder valve structure of an oxygen cylinder for respiration as claimed in claim 1, wherein the valve core piston (24) has a piston hole (241) formed upward in the middle thereof, a piston air inlet hole (242) communicated with the piston hole (241) is formed in a side wall of the lower end of the valve core piston (24), a needle seat (243) matched with the valve core needle (26) is formed by narrowing the bottom of the valve core piston (24), a piston spring seat (244) is formed at the upper end of the valve core piston (24), the lower end of the adjusting spring (22) abuts against the piston spring seat (244), and a valve core piston sealing ring (245) is disposed between the valve core piston (24) and the side wall of the valve body upper chamber (11).

8. The cylinder valve structure of the oxygen cylinder for respiration according to claim 1 is characterized in that the inner side wall of the valve core seat cavity (12) is fixedly connected with the outer side wall of the valve core seat (25) through threads, the valve core seat (25) is upwardly formed with a valve core seat piston abdicating hole (251), the valve core seat (25) is downwardly formed with a thimble abdicating hole (252) communicated with the valve core seat piston abdicating hole (251), the upper end of the valve core thimble (26) is formed with a needle body (261), the needle body (261) passes through the thimble abdicating hole (252) and then extends into the valve core seat piston abdicating hole (251), a valve core sealing seat (253) is arranged between the valve core seat (25) and the valve core thimble cavity (13), the needle body (261) passes through the valve core sealing seat (253) to enable the valve core thimble (26) to abut against the valve core sealing seat (253), a gap is formed between the valve core thimble (26) and the valve core thimble cavity (13) for gas to pass through, the upper end of the thimble spring (27) is propped against the lower end position of the valve core thimble (26), and the lower end is propped against the bottom of the valve core thimble cavity (13).

9. The cylinder valve structure of a cylinder for breathing oxygen according to claim 1, characterized in that the bottom of the valve core thimble cavity (13) is provided with an air inlet channel (131), the lower end of the air inlet channel (131) is provided with an air inlet filter cavity (132), and the air inlet filter cavity (132) is internally provided with a filter sheet (29).

10. A cylinder valve structure of a cylinder for oxygen for respiration as claimed in claim 1, characterized in that the lower end of the valve body (1) is formed with a ring of valve body coupling thread section (18) for coupling with the cylinder.