Oxygen bottle breathing connecting device

Abstract

The utility model relates to the technical field of oxygen bottle breathing connectors, in particular to an oxygen bottle breathing connecting device which comprises a bottle grabbing base, an adapter and a breathing pressure control valve, the bottle grabbing base comprises a bottle grabbing part and a hollow connecting part fixedly connected with the bottle grabbing part, and the bottle grabbing part is used for clamping a plugging cover of an oxygen bottle. The breathing pressure control valve penetrates through the adapter and the hollow connecting part and is used for abutting against and communicating with a valve nozzle of the oxygen bottle. When the oxygen bottle breathing connecting device is used in combination with an oxygen bottle, the oxygen bottle breathing connecting device is divided into two parts, one part comprises a bottle grabbing base and an adapter fixed to the bottle grabbing base, and the other part comprises a breathing pressure control valve; during use, the bottle grabbing part of the bottle grabbing base is clamped with a plugging cover of an oxygen bottle, then the breathing pressure control valve is assembled on the adapter and abuts against a valve nozzle of the oxygen bottle, the valve nozzle of the oxygen bottle is pressed, oxygen can be continuously output through the breathing pressure control valve until oxygen in the oxygen bottle is used up, and more convenience is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an oxygen cylinder breathing connector technical field, concretely relates to an oxygen cylinder breathing connecting device. BACKGROUND

[0002] An oxygen cylinder, particularly a portable oxygen cylinder, comprises a bottle body, a sealing cover arranged at the bottle mouth end of the bottle body, a sealing ring arranged between the bottle body and the sealing cover, and a valve nozzle arranged on the sealing cover, the oxygen cylinder is filled with compressed oxygen, and the valve nozzle can be pressed to allow the oxygen to be discharged from the valve nozzle.

[0003] A conventional portable oxygen cylinder is usually provided with a spray head on the valve nozzle, the valve nozzle is pressed to discharge the oxygen, the spray head is a gas injection button / oxygen cylinder breathing connector, however, in order to continuously output the oxygen from the oxygen cylinder, the spray head needs to be continuously pressed manually, the convenience is poor, and the conventional spray head and the oxygen cylinder are difficult to be applied to the breathing equipment with the application number CN2018202245613 as an oxygen supply device. SUMMARY

[0004] In order to overcome the defects and deficiencies in the prior art, the utility model aims at providing an oxygen cylinder breathing connecting device.

[0005] The utility model discloses a kind of oxygen cylinder breathing connecting devices, including bottle grasping base, adapter seat and with the detachable connection of breathing pressure control valve of adapter seat, the bottle grasping base includes bottle grasping part and with the fixed connection of hollow connecting part of bottle grasping part, the hollow connecting part is fixedly connected with adapter seat, the bottle grasping part is used to connect the sealing cover of oxygen cylinder, the breathing pressure control valve is through adapter seat and hollow connecting part and is used to press and communicate the valve nozzle of oxygen cylinder.

[0006] Preferably, the bottle grasping part is provided with a bottle grasping socket, and the bottle grasping socket is used for clamping cooperation with the sealing cover of the oxygen cylinder.

[0007] Preferably, the bottle grasping part has at least three bottle grasping claws for clamping cooperation with the sealing cover of the oxygen cylinder.

[0008] Preferably, the respiratory pressure control valve comprises a valve body, a valve core, a second spring sleeved on the top needle end of the valve core, a connector connected to the bottom of the valve body, and a gas valve cover arranged on the top of the valve body, the valve body is provided with an airflow channel and a bypass channel, the upper and lower ends of the valve body are respectively provided with a first cavity and a second cavity, the connector, the second cavity and the airflow channel are sequentially communicated along the conveying direction of the gas source, the two ends of the bypass channel are respectively communicated with the top side of the first cavity and the airflow channel, the two ends of the second spring are respectively abutted against the valve core and the connector, the valve core is movably arranged in the first cavity and penetrates the bottom of the first cavity, and the top needle end of the valve core is used for temporarily blocking the gas source into the second cavity; when the gas source is excessively large in pressure in the airflow channel after the connector is connected to the gas source, a part of the gas source enters the first cavity through the bypass channel to drive the valve core to move downward, and the top needle end of the valve core temporarily blocks the gas source into the second cavity, and the connector penetrates the adapter seat and the hollow connecting part and is used for abutting and communicating the valve nozzle of the oxygen cylinder.

[0009] Preferably, the top of the connector is provided with a piston cavity, the respiratory pressure control valve further comprises a first spring and a piston assembly movably arranged in the piston cavity and communicated with the connector and the second cavity, the two ends of the first spring are respectively abutted against the top of the second cavity and the top of the piston assembly, the second spring is clamped between the valve core and the piston assembly, and the top needle end of the valve core penetrates the bottom of the first cavity and is used for temporarily blocking the piston assembly to form an airflow adjusting group for adjusting the flow of the gas source; the respiratory pressure control valve further comprises a third spring arranged in the first cavity, and the two ends of the third spring are respectively abutted against the top of the valve core and the bottom of the gas valve cover.

[0010] Preferably, the piston assembly comprises a piston body movably arranged in the piston cavity and communicated with the connector, and a first sealing ring sleeved on the piston body, and the outer side wall of the first sealing ring movably abuts against the inner side wall of the piston cavity.

[0011] Preferably, the piston assembly further comprises a first perforated gasket attached to the top of the piston body and communicated with the piston body; and the top needle end of the valve core cooperates with the first perforated gasket to adjust the flow of the gas source.

[0012] Preferably, the second cavity is provided with a first annular groove, and a second sealing ring is clamped between the first annular groove and the connecting head; a second annular groove is further provided at the top of the second cavity, a second perforated gasket is attached to the top of the second cavity, a third sealing ring is clamped between the second annular groove and the second perforated gasket, the inner side wall of the third sealing ring is movably abutted against the outer side wall of the needle end of the valve core, and the first spring is clamped between the second perforated gasket and the piston assembly; an annular sealing gasket is clamped between the valve body and the air valve cover; a fourth sealing ring is sleeved on the valve head of the valve core, and the outer side wall of the fourth sealing ring is movably abutted against the inner side wall of the first cavity.

[0013] Preferably, the outer side wall of the connecting head is provided with an external thread, the inner side wall of the second cavity is provided with a first internal thread threadedly matched with the external thread, the inner side wall of the adapter seat is provided with a second internal thread threadedly matched with the external thread, and the two ends of the connecting head are threadedly connected to the valve body and the adapter seat.

[0014] Preferably, the bottom of the connecting head is provided with an embedded cavity, and a gas source pressing head is embedded in the embedded cavity, and the gas source pressing head is provided with a pressing air inlet hole in communication with the connecting head.

[0015] The oxygen cylinder breathing connection device of the utility model, adopt the bottle grasping base, the adapter seat and the breathing pressure control valve which is detachably connected with the adapter seat, the bottle grasping base includes the bottle grasping part and the hollow connecting part which is fixedly connected with the bottle grasping part, the hollow connecting part is fixedly connected with the adapter seat, the bottle grasping part is used for clamping the plugging cover of the oxygen cylinder, and the breathing pressure control valve penetrates the adapter seat and the hollow connecting part and is used for pressing and communicating the valve nozzle of the oxygen cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic view that the utility model embodiment 1 is combined with the oxygen cylinder;

[0017] Figure 2 It is the exploded schematic view of Figure 1

[0018] Figure 3 It is the structure schematic view of the breathing pressure control valve of the utility model;

[0019] Figure 4 ​is a sectional view of the breathing pressure control valve of the utility model;

[0020] Figure 5 is an exploded schematic view of the breathing pressure control valve of the utility model;

[0021] Figure 6 is an exploded schematic view of the breathing pressure control valve of the utility model from another perspective;

[0022] Figure 7 is a structural schematic view of the embodiment 2 of the utility model combined with an oxygen cylinder;

[0023] Figure 8 is Figure 7 an exploded schematic view.

[0024] The figure mark is: 100, breathing pressure control valve;1, valve body;2, valve core;3, first spring;4, second spring;5, connecting head;6, piston assembly;61, piston body;62, first sealing ring;63, first hole pad;7, air valve cover;8, air flow channel;9, first cavity;10, second cavity;11, bypass channel;12, third spring;13, piston cavity;14, first annular groove;15, second sealing ring;16, second annular groove;17, second hole pad;18, third sealing ring;19, annular sealing pad;20, fourth sealing ring;21, external thread;22, embedded cavity;23, air source pressure head;24, pressure inlet hole;25, internal thread;26, bottle grabbing base;261, bottle grabbing part;262, hollow connecting part;27, adapter seat;28, second internal thread;29, bottle grabbing bayonet;30, bottle grabbing claw;31, balance hole. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of those skilled in the art, the utility model is further illustrated below in combination with examples and drawings, and the content mentioned in the implementation manner is not a limitation on the utility model.

[0026] Example 1

[0027] As Figures 1-6 shown, an oxygen cylinder breathing connection device, including bottle grabbing base 26, adapter seat 27, and with the detachable connection of adapter seat 27, breathing pressure control valve 100, bottle grabbing base 26 includes bottle grabbing part 261, and with the fixed connection of bottle grabbing part 261, hollow connecting part 262, hollow connecting part 262 is fixedly connected with adapter seat 27, bottle grabbing part 261 is used for clamping the sealing cover of oxygen cylinder, breathing pressure control valve 100 penetrates adapter seat 27 and hollow connecting part 262 and is used for pressing and communicating the valve nozzle of oxygen cylinder.

[0028] The oxygen cylinder breathing connection device is combined with the oxygen cylinder, and is divided into two parts, one part includes a bottle grabbing base 26 and an adapter seat 27 fixed to the bottle grabbing base 26, and the other part includes a breathing pressure control valve 100; when in use, the bottle grabbing part 261 of the bottle grabbing base 26 is clamped to the sealing cover of the oxygen cylinder, and then the breathing pressure control valve 100 is assembled in the adapter seat 27 and presses against the valve mouth of the oxygen cylinder, so that the valve mouth of the oxygen cylinder is pressed and can continuously output oxygen through the breathing pressure control valve 100 until the oxygen in the oxygen cylinder is consumed, which is more convenient. The oxygen cylinder breathing connection device combined with the oxygen cylinder is more beneficial to be applied to the breathing equipment with the application number of CN as an oxygen supply device.

[0029] Further, the respiratory pressure control valve 100 comprises a valve body 1, a valve core 2, a second spring 4 sleeved on the top needle end of the valve core 2, a connecting head 5 connected to the bottom of the valve body 1, and a gas valve cover 7 covered on the top of the valve body 1, the valve body 1 is provided with an airflow channel 8 and a bypass channel 11, the upper and lower ends of the valve body 1 are respectively provided with a first cavity 9 and a second cavity 10, the connecting head 5, the second cavity 10 and the airflow channel 8 are sequentially communicated along the conveying direction of the gas source, the two ends of the bypass channel 11 are respectively communicated with the top side of the first cavity 9 and the airflow channel 8, the two ends of the second spring 4 are respectively abutted on the valve core 2 and the connecting head 5, the valve core 2 is movably arranged in the first cavity 9 and penetrates the bottom of the first cavity 9, and the top needle end of the valve core 2 is used for temporarily blocking the gas source from entering the second cavity 10; when the connecting head 5 is connected to the gas source and the gas pressure of the airflow channel 8 is too large, part of the gas source enters the first cavity 9 along the bypass channel 11 to drive the valve core 2 to move downward, and the top needle end of the valve core 2 temporarily blocks the gas source from entering the second cavity 10, and the connecting head 5 penetrates the adapter seat 27 and the hollow connecting part 262 and is used for abutting and communicating the valve nozzle of the oxygen cylinder. Because the existing oxygen cylinder has sufficient gas amount and large gas pressure when in use, the released oxygen (gas source amount) is large, if the outlet of the respiratory pressure control valve 100 is blocked or the outlet airflow is too large, it is easy to cause the outlet gas pressure of the airflow valve to be too large and the gas pressure stability to be poor; when the connecting head 5 is connected to the gas source and the gas pressure of the airflow channel 8 is too large, part of the gas source enters the first cavity 9 along the bypass channel 11 to drive the valve core 2 to move downward, when the gas pressure on the upper surface of the valve core 2 in the first cavity 9 is greater than the sum of the gas pressure on the lower surface and the reaction force of the second spring 4, the top needle end of the valve core 2 blocks the gas source from entering the second cavity 10; when the gas pressure on the upper surface of the valve core 2 in the first cavity 9 is less than the sum of the gas pressure on the lower surface and the reaction force of the second spring 4, the top needle end of the valve core 2 is pushed upward by the resetting force of the second spring 4, that is, the blocking of the gas source from entering the second cavity 10 is removed, so that the top needle end of the valve core 2 temporarily blocks the gas source from entering the second cavity 10 to relatively stabilize the gas pressure output by the airflow channel 8, which is beneficial to the whole gas source to maintain a relatively stable gas source amount to be released from the respiratory pressure control valve 100, and is more beneficial to be applied to the similar respiratory equipment with the application number of CN as an oxygen supply device.

[0030] Further, the top of the connector 5 is provided with a piston cavity 13, the breathing pressure control valve 100 further comprises a first spring 3, and a piston assembly 6 which is movably arranged in the piston cavity 13 and communicates the connector 5 and the second cavity 10, two ends of the first spring 3 are respectively abutted against the top of the second cavity 10 and the top of the piston assembly 6, the second spring 4 is clamped between the valve core 2 and the piston assembly 6, the top pin end of the valve core 2 penetrates the bottom of the first cavity 9 and is used for temporarily blocking the piston assembly 6 to form an air flow adjusting group for adjusting the air source flow; the breathing pressure control valve 100 further comprises a third spring 12 which is arranged in the first cavity 9, two ends of the third spring 12 are respectively abutted against the top of the valve core 2 and the bottom of the air valve cover 7. In actual use, when the traditional compressed air source container supplies air to the connector 5, the air pressure fluctuation of the air source is very large, which causes the air pressure fluctuation of the air flow channel 8 output; in order to optimize the above-mentioned air pressure fluctuation problem, the cooperation of the first spring 3, the second spring 4, the piston assembly 6, the third spring 12 and the valve core 2 is needed; when there is no air source input into the connector 5, the height of the first spring 3 is at the maximum value, the piston assembly 6 is located at the bottom of the piston cavity 13, the height of the third spring 12 is also at the maximum value, the valve head of the valve core 2 is close to the bottom of the first cavity 9, as the air pressure of the input air source is larger, the piston assembly 6 is pushed to the top of the piston cavity 13 by the air pressure and gradually presses the first spring 3, in the process of the piston assembly 6 rising, the second spring 4 and the valve core 2 are driven to move upward and compress the third spring 12, the reaction force generated by the third spring 12 offsets the air flow reaction force generated by the bottom of the valve core 2 due to the increase of the air pressure, thereby improving the influence of the increase of the input air pressure on the output end; when the input air pressure decreases, the piston assembly 6 is downwardly moved by the reset return force of the first spring 3, the valve core 2 also moves downwardly, the surface of the valve core 2 is gradually reduced by the return force of the third spring 12, which plays a reverse pressure stabilizing role and a relatively constant pressure role.

[0031] It should be noted that the first spring 3, the second spring 4 and the third spring 12 are all compression springs.

[0032] Further, the piston assembly 6 comprises a piston body 61 which is movably arranged in the piston cavity 13 and communicates the connector 5, and a first sealing ring 62 which is sleeved on the piston body 61, the outer side wall of the first sealing ring 62 movably abuts against the inner side wall of the piston cavity 13. The leakage of the air source from the gap between the piston cavity 13 and the piston body 61 is avoided.

[0033] Further, the piston assembly 6 further comprises a first perforated gasket 63 attached to the top of the piston body 61 and communicated with the piston body 61; the top needle end of the valve core 2 cooperates with the first perforated gasket 63 for adjusting the flow of the gas source. In use, when the gas pressure of the gas flow channel 8 is too large, under the joint action of the gas pressure of the gas source, the first spring 3, the second spring 4 and the third spring 12, the valve core 2 is pressed down and temporarily blocks the first perforated gasket 63, so that the top needle end of the valve core 2 blocks the gas source and the gas source cannot enter the second cavity 10 from the connector 5; after the gas pressure of the gas flow channel 8 is reduced, the valve core 2 unblocks the gas source to enter the second cavity 10, thereby relatively stabilizing the gas pressure of the output of the gas flow channel 8.

[0034] Further, the second cavity 10 is provided with a first annular groove 14, and the second sealing ring 15 is clamped between the first annular groove 14 and the connector 5; the top of the second cavity 10 is also provided with a second annular groove 16, and the second perforated gasket 17 is attached to the top of the second cavity 10, the third sealing ring 18 is clamped between the second perforated gasket 17 and the second annular groove 16, the inner side wall of the third sealing ring 18 movably abuts against the outer side wall of the top needle end of the valve core 2, and the first spring 3 is clamped between the second perforated gasket 17 and the piston assembly 6. This is conducive to avoiding leakage of the gas source from the gap between the first annular groove 14 and the connector 5 and the gap between the top of the second cavity 10 and the valve core 2. The second perforated gasket 17 and the second annular groove 16 are used to fix the third sealing ring 18.

[0035] Further, the outer side wall of the valve body 1 is provided with a balance hole 31 communicated with the bottom of the first cavity 9, the balance hole 31 is used to balance the gap pressure between the valve head of the valve core 2 and the bottom of the first cavity 9 when the valve core 2 moves up and down; when the valve core 2 descends, the gas in the gap between the valve head of the valve core 2 and the bottom of the first cavity 9 is discharged along the balance hole 31; when the valve core 2 rises, the ambient air is sucked into the gap between the valve head of the valve core 2 and the bottom of the first cavity 9 along the balance hole 31; also avoiding the gap between the valve head of the valve core 2 and the bottom of the first cavity 9 from seeping into the gas source and affecting the lifting of the valve core 2 when the valve core 2 moves up and down.

[0036] Further, the annular sealing gasket 19 is clamped between the valve body 1 and the air valve cover 7; the valve head of the valve core 2 is provided with the fourth sealing ring 20, and the outer side wall of the fourth sealing ring 20 movably abuts against the inner side wall of the first cavity 9. This is conducive to avoiding leakage of the gas source from the gap between the valve body 1 and the air valve cover 7 and the gap between the valve head of the valve core 2 and the first cavity 9.

[0037] Furthermore, the outer side wall of the connector 5 is provided with an external thread 21, and the inner side wall of the second cavity 10 is provided with a first internal thread 25 that is threadedly engaged with the external thread 21; the inner side wall of the adapter 27 is provided with a second internal thread 2825 that is threadedly engaged with the external thread 21, and the two ends of the connector 5 are threadedly connected to the valve body 1 and the adapter 27 to achieve fixed installation.

[0038] Furthermore, the bottom of the connector 5 has an embedded cavity 22, in which an air source pressure head 23 is embedded. The air source pressure head 23 has a pressure inlet port 24 communicating with the connector 5. When the breathing pressure control valve 100 is used with an air source container, the press-to-discharge valve of the air source container extends into and presses against the inlet port 24, and the air source of the air source container is discharged from the press-to-discharge valve and enters the connector 5.

[0039] In this embodiment, the bottle gripping part 261 has a bottle gripping slot 29, which is used to engage with the sealing cap of the oxygen cylinder. In this embodiment, the bottle gripping slot 29 is U-shaped.

[0040] Example 2

[0041] The difference between Example 2 and Example 1 is as follows:

[0042] like Figures 7-8 As shown, the bottle gripping part 261 has at least three bottle gripping claws 30 for engaging with the sealing cap of the oxygen cylinder. Preferably, the bottle gripping part 261 has three bottle gripping claws 30 for engaging with the sealing cap of the oxygen cylinder.

[0043] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. An oxygen cylinder breathing attachment device, characterized by: The bottle gripping base, the adapter, and the breathing pressure control valve detachably connected with the adapter, the bottle gripping base comprises a bottle gripping part and a hollow connecting part fixedly connected with the bottle gripping part, the hollow connecting part is fixedly connected with the adapter, the bottle gripping part is used for clamping the sealing cover of the oxygen cylinder, and the breathing pressure control valve penetrates through the adapter and the hollow connecting part and is used for pressing and communicating the valve nozzle of the oxygen cylinder.

2. An oxygen cylinder breathing attachment as claimed in claim 1, wherein: The bottle gripping part is provided with a bottle gripping socket used for clamping the sealing cover of the oxygen cylinder.

3. An oxygen cylinder breathing attachment as claimed in claim 1, wherein: The bottle gripping part has at least three bottle gripping clamping jaws used for clamping the sealing cover of the oxygen cylinder.

4. The oxygen cylinder breathing attachment as claimed in claim 1, wherein: The breathing pressure control valve comprises a valve body, a valve core, a second spring sleeved on the top needle end of the valve core, a connecting head connected with the bottom of the valve body, and a gas valve cover covered on the top of the valve body, the valve body is provided with an airflow channel and a bypass channel, the upper and lower ends of the valve body are respectively provided with a first cavity and a second cavity, the connecting head, the second cavity and the airflow channel are sequentially communicated along the conveying direction of the gas source, the two ends of the bypass channel are respectively communicated with the top side of the first cavity and the airflow channel, the two ends of the second spring are respectively abutted against the valve core and the connecting head, the valve core is movably arranged in the first cavity and penetrates through the bottom of the first cavity, and the top needle end of the valve core is used for temporarily blocking the gas source into the second cavity; when the gas source is excessively large in pressure in the airflow channel after the connecting head is communicated with the gas source, part of the gas source enters the first cavity through the bypass channel to drive the valve core to move downward, and the top needle end of the valve core temporarily blocks the gas source into the second cavity, and the connecting head penetrates through the adapter and the hollow connecting part and is used for pressing and communicating the valve nozzle of the oxygen cylinder.

5. An oxygen cylinder breathing attachment as claimed in claim 4, wherein: The top of the connecting head is provided with a piston cavity, the breathing pressure control valve further comprises a first spring, and a piston assembly movably arranged in the piston cavity and communicated with the connecting head and the second cavity, the two ends of the first spring are respectively abutted against the top of the second cavity and the top of the piston assembly, the second spring is clamped between the valve core and the piston assembly, the top needle end of the valve core penetrates through the bottom of the first cavity and is used for temporarily blocking the piston assembly to form an airflow adjusting group for adjusting the flow of the gas source; the breathing pressure control valve further comprises a third spring accommodated in the first cavity, and the two ends of the third spring are respectively abutted against the top of the valve core and the bottom of the gas valve cover.

6. An oxygen cylinder breathing attachment as claimed in claim 5, wherein: The piston assembly comprises a piston body movably arranged in the piston cavity and communicated with the connecting head, and a first sealing ring sleeved on the piston body, and the outer side wall of the first sealing ring movably abuts against the inner side wall of the piston cavity.

7. An oxygen cylinder breathing attachment as claimed in claim 6, wherein: The piston assembly further comprises a first perforated gasket attached to the top of the piston body and communicated with the piston body, and the top needle end of the valve core is matched with the first perforated gasket to adjust the flow of the gas source.

8. An oxygen cylinder breathing attachment as claimed in claim 5, wherein: The second cavity is provided with a first annular groove, and a second sealing ring is clamped between the first annular groove and the connecting head; a second annular groove is further provided at the top of the second cavity, a second perforated gasket is attached to the top of the second cavity, a third sealing ring is clamped between the second perforated gasket and the second annular groove, the inner side wall of the third sealing ring is movably abutted against the outer side wall of the thimble end of the valve core, and the first spring is clamped between the second perforated gasket and the piston assembly; an annular sealing gasket is clamped between the valve body and the air valve cover; the valve head of the valve core is provided with a fourth sealing ring, and the outer side wall of the fourth sealing ring is movably abutted against the inner side wall of the first cavity.

9. An oxygen cylinder breathing attachment as claimed in claim 4, wherein: The outer side wall of the connecting head is provided with an external thread, and the inner side wall of the second cavity is provided with a first internal thread threadedly matched with the external thread; the inner side wall of the adapter seat is provided with a second internal thread threadedly matched with the external thread, and the two ends of the connecting head are threadedly connected to the valve body and the adapter seat.

10. The oxygen cylinder breathing attachment as claimed in claim 4, wherein: The bottom of the connecting head is provided with an embedded cavity, the embedded cavity is embedded with a gas source pressing head, and the gas source pressing head is provided with a pressing air inlet through hole in communication with the connecting head.

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