Leak-proof oxygen pillow

Abstract

The utility model provides a leakproof oxygen pillow, which relates to the technical field of medical instruments and comprises an oxygen storage bag, an air bag and a first oxygen supply hose, and the oxygen storage bag is connected with the air bag through the first oxygen supply hose; a gas input pipe, a gas output pipe and an oxygen connecting pipe are arranged on the air bag, the oxygen connecting pipe is connected with the first oxygen supply hose, the gas output pipe is connected with a second oxygen supply hose, and the second oxygen supply hose is used for being connected with an oxygen inhalation device; the gas input pipe is provided with a locking valve and a first one-way valve, and the locking valve is normally closed; the first one-way valve is used for passing gas flowing to the airbag from the gas input pipe; the gas output pipe is provided with a second one-way valve and a pressure safety valve. By arranging the pressure safety valve, the pressure safety valve can be opened only when the air bag is extruded and the pressure reaches a threshold value, then oxygen is released, and the air bag is prevented from being damaged due to overpressure; the oxygen pillow solves the problem that the hose still releases oxygen when the oxygen pillow is not used, and further reduces the probability of oxygen leakage of the oxygen pillow.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a leakproof oxygen pillow. BACKGROUND

[0002] In the medical field, oxygen therapy is one of the common treatment methods, which is used to improve the blood oxygen saturation of patients, especially in the case of respiratory diseases, heart diseases, etc. As a portable oxygen supply device, the oxygen pillow is widely used in home care, first-aid sites and medical institutions due to its portability and simple operation. The oxygen pillow is usually composed of an inflatable bag, a hose and a hose flow rate regulator. The hose is in communication with the inflatable bag, and the hose flow rate regulator is sleeved on the hose. The bag contains compressed oxygen. The hose flow rate regulator is used to adjust the oxygen flow rate through the hose. The hose is connected with a catheter, a nasal catheter or a mask to provide oxygen to the patient. Although the oxygen pillow has many advantages, it also exposes some problems in actual use. One of the most notable problems is "oxygen leakage of the oxygen pillow". Specifically, due to material aging, manufacturing defects or improper use, the sealing performance of the oxygen pillow may decrease, resulting in oxygen leakage. The main reason for oxygen leakage is that the hose flow rate regulator cannot seal the hose, causing oxygen to be released when the oxygen pillow is not in use, resulting in oxygen waste and increasing medical costs. In addition, the connection between the hose and the catheter may leak due to loose or damaged interfaces. These problems not only cause insufficient oxygen supply and affect the treatment effect, but also cause oxygen waste and increase medical costs. SUMMARY

[0003] The utility model aims at providing a leakproof oxygen pillow, and solves the problem of oxygen release from the hose when the oxygen pillow is not in use, thereby reducing the probability of oxygen leakage of the oxygen pillow.

[0004] The utility model realizes the following technical scheme:

[0005] A leakproof oxygen pillow comprises an oxygen storage bag, an air bag and a first oxygen supply hose. The oxygen storage bag and the air bag are connected by the first oxygen supply hose.

[0006] The air bag is provided with a gas input pipe, a gas output pipe and an oxygen connection pipe. The oxygen connection pipe is connected with the first oxygen supply hose. The gas output pipe is connected with a second oxygen supply hose. The second oxygen supply hose is used to connect an oxygen inhalation device.

[0007] The gas input pipe is provided with a locking valve and a first one-way valve. The locking valve is normally closed. The first one-way valve is used to pass the gas flowing from the gas input pipe to the air bag. The gas flowing to the air bag passes through the locking valve and the first one-way valve in sequence.

[0008] The gas output pipe is provided with a second one-way valve for gas flowing from the gas bag to the second oxygen supply hose and a pressure safety valve.

[0009] The locking valve is kept closed when not in use to prevent external air from entering the gas bag and prevent the gas bag from being contaminated. When oxygen needs to be filled, the oxygen pipe is first connected to the gas input pipe, and then the locking valve is manually opened to allow oxygen to flow smoothly into the gas bag. After the filling is completed, the locking valve is closed again, and then the oxygen pipe is disconnected. A first one-way valve is provided behind the locking valve to allow gas to flow from the gas input pipe to the gas bag, preventing the gas in the gas bag from flowing back to the gas input pipe, ensuring that the gas can flow smoothly into the gas bag during inflation, and the oxygen in the gas bag will not leak out through the gas input pipe after inflation is completed. A second one-way valve and a pressure safety valve are provided in the gas output pipe. The second one-way valve only allows gas to flow from the gas bag to the second oxygen supply hose, preventing the gas in the oxygen inhalation device from flowing back to the gas bag, ensuring that the oxygen in the gas bag can be smoothly delivered to the oxygen inhalation device during oxygen inhalation, and preventing the oxygen in the gas bag and the oxygen storage bag from being contaminated. By providing a pressure safety valve, when the gas bag is squeezed and the pressure in the gas bag reaches a threshold value, the pressure safety valve will open to release the oxygen, preventing the gas bag from being damaged due to overpressure. The problem of oxygen release from the oxygen pillow when not in use is solved, thereby reducing the probability of oxygen leakage from the oxygen pillow.

[0010] Further, the second oxygen supply hose is provided with a connector at the end away from the gas bag, and the connector is provided with a first central hole that communicates with the second oxygen supply pipe.

[0011] The connector is provided with a sealing plug for plugging the first central hole of the connector.

[0012] The connector is provided with a first central hole that communicates with the second oxygen supply hose for connecting an oxygen inhalation device (such as a nasal cannula or a face mask). The sealing plug is used to plug the first central hole of the connector to prevent oxygen from leaking from the second oxygen supply hose when not in use. When the oxygen pillow is not in use, the sealing plug can be inserted into the first central hole of the connector to completely block the outlet of the second oxygen supply hose. Even if there is oxygen in the second oxygen supply hose, it will not leak out through the first central hole. In combination with the pressure safety valve and the second one-way valve on the gas bag, the sealing plug provides an additional layer of protection to ensure that the sealing performance of the oxygen pillow is optimal when not in use. When the oxygen pillow needs to be used, the sealing plug is simply pulled out and the oxygen inhalation device is connected to the connector. After use, the sealing plug is reinserted, making the operation simple and quick. The design of the sealing plug also reduces the risk of the connector being contaminated when not in use, ensuring the hygiene and safety of the next use.

[0013] Further, the connector comprises a first connecting part and a second connecting part, the first connecting part is connected with the second oxygen supply hose, and the second connecting part is used for connecting the oxygen inhalation device.

[0014] The inner wall of the second connecting part is provided with a first sealing ring, and the inner wall of the first sealing ring extends to the first central hole axis.

[0015] When the oxygen inhalation device is inserted into the second connecting part of the connector, the first sealing ring tightly fits the outer wall of the oxygen inhalation device to form a seal, effectively preventing oxygen leakage at the connection and ensuring the stability of oxygen transmission.

[0016] Further, the inner diameter of the first sealing ring gradually increases from the first connecting part to the second connecting part.

[0017] The inner diameter of the first sealing ring gradually increases from the first connecting part to the second connecting part, forming a multi-stage sealing structure. When the oxygen inhalation device is inserted into the connector, multiple sealing rings will sequentially tightly fit the outer wall of the oxygen inhalation device to form multiple seals; the step-by-step sealing of multiple sealing rings can effectively prevent oxygen leakage at the connection and ensure the stability of oxygen transmission, especially in the case of long-term use or frequent insertion and removal, which can maintain good sealing performance. In addition, the design of gradually changing inner diameter makes the insertion and removal of the oxygen inhalation device more smooth, reduces the resistance during insertion and removal, and improves the user's convenience. The tight fit of the sealing ring can reduce the opportunity for external pollutants to enter the inside of the connector, keeping the connection part clean and sanitary. By increasing multiple sealing rings, the overall reliability of the connector is improved, reducing the risk of oxygen leakage caused by poor connection.

[0018] Further, the spacing of the first sealing ring gradually increases from the first connecting part to the second connecting part.

[0019] The inner diameter of the first sealing ring gradually increases from the first connecting part to the second connecting part, forming a multi-stage sealing structure. When the oxygen inhalation device is inserted into the connector, multiple sealing rings will sequentially tightly fit the outer wall of the oxygen inhalation device to form multiple seals; from the first connecting part to the second connecting part, the spacing of the first sealing ring gradually increases, ensuring that at least one first sealing ring contacts and seals the oxygen inhalation device during insertion, while ensuring the sealing effect, reducing the insertion resistance caused by the excessive density of the first sealing ring. In addition, the gradually changing inner diameter and spacing make the insertion and removal of the oxygen inhalation device more smooth, reducing the resistance during insertion and removal, and improving the user's convenience.

[0020] Further, the sealing plug comprises a first sealing member, and the first sealing member comprises a first plug head and a first sealing plate.

[0021] The first plug head is arranged on the first sealing plate, and the first sealing plate extends out of the first plug head.

[0022] The outer side wall of the first plug head is provided with a second sealing ring;

[0023] When the sealing plug seals the first central hole of the connector, the first plug head is inserted into the first central hole, the outer side wall of the second sealing ring is in close contact with the inner side wall of the second connecting part, and the first sealing plate part extending out of the first plug head abuts against the end of the connector.

[0024] When the first plug head is inserted into the first central hole, the second sealing ring is in close contact with the inner side wall of the second connecting part of the connector, forming the first seal. At the same time, the first sealing plate abuts against the end of the connector, forming the second seal, ensuring that the connector is completely closed when not in use; through the double-sealing design of the first plug head and the first sealing plate, oxygen leakage from the connector is effectively prevented, ensuring the sealing performance of the oxygen pillow when not in use. The double-sealing design can effectively prevent accidental leakage when not in use, especially during transportation or storage, ensuring the sealing performance of the oxygen pillow.

[0025] Further, the sealing plug further comprises a second sealing member, and a first connecting band is arranged on the second sealing member to connect the first sealing member and the second sealing member;

[0026] The second sealing member is provided with a second central hole;

[0027] The second sealing member comprises a second plug head and a second sealing plate;

[0028] The second plug head is arranged on the second sealing plate, and the second sealing plate extends out of the second plug head;

[0029] The outer side wall of the second plug head is provided with a third sealing ring;

[0030] When the sealing plug seals the first central hole of the connector, the second plug head is inserted into the first central hole, the outer side wall of the third sealing ring is in close contact with the inner side wall of the second connecting part, and the second sealing plate part extending out of the second plug head abuts against the end of the connector, the first plug head is inserted into the second central hole, the outer side wall of the second sealing ring is in close contact with the inner side wall of the second sealing member, and the first sealing plate part extending out of the first plug head abuts against the end of the second sealing member.

[0031] Since the oxygen inhalation devices are various, a plurality of interfaces are needed to be prepared as backup, and a second center hole is formed in the second sealing member for connecting the oxygen inhalation device; when the second oxygen supply hose is blocked, the first center hole and the second center hole need to be blocked; in order to block the first center hole, the second plug is inserted into the first center hole of the connector, and the third sealing ring is tightly attached to the inner side wall of the second connecting portion of the connector to form the first sealing; at the same time, the second sealing plate abuts against the end of the connector to form the second sealing; in order to block the second center hole, the first plug is inserted into the second center hole, and the second sealing ring is tightly attached to the inner side wall of the second sealing member to form the first sealing, and at the same time, the first sealing plate abuts against the end of the second sealing member to form the second sealing; through the multi-stage sealing design, the leakage of oxygen from the connector is effectively prevented, and the sealing performance of the oxygen pillow when not in use is ensured.

[0032] Further, the second connecting belt is arranged between the connector and the sealing plug, and the connector and the sealing plug are connected through the second connecting belt.

[0033] The second connecting belt ensures that the sealing plug is always connected with the connector, and prevents the sealing plug from being lost during use or storage.

[0034] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0035] The locking valve is kept in a closed state when not in use, preventing external air from entering the air bag and preventing the air bag from being contaminated; when oxygen needs to be filled, the oxygen pipe is first connected to the gas input pipe, and then the locking valve is manually opened, so that oxygen can smoothly enter the air bag, and after the filling is completed, the locking valve is closed again, and then the oxygen pipe is disconnected. The first one-way valve is arranged behind the locking valve, allowing gas to flow from the gas input pipe to the air bag, preventing the gas in the air bag from flowing back to the gas input pipe, ensuring that the gas can smoothly enter the air bag during inflation, and the oxygen in the air bag will not leak out through the gas input pipe after inflation is completed. The second one-way valve and the pressure safety valve are arranged on the gas output pipe, the second one-way valve only allows gas to flow from the air bag to the second oxygen supply hose, preventing the gas in the oxygen inhalation device from flowing back to the air bag, ensuring that the oxygen in the air bag can be smoothly delivered to the oxygen inhalation device during oxygen inhalation, and preventing the oxygen in the air bag and the oxygen storage bag from being contaminated; by arranging the pressure safety valve, when the air bag is squeezed and the pressure in the air bag reaches a threshold value, the pressure safety valve will be opened, and then the oxygen will be released, preventing the air bag from being damaged due to overpressure; the problem that oxygen is released from the hose when the oxygen pillow is not in use is solved, thereby reducing the probability of oxygen leakage of the oxygen pillow. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical scheme in the example embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the premise that the drawings are not attached.

[0037] Figure 1 is a schematic diagram of the overall structure of the oxygen pillow;

[0038] Figure 2 is Figure 1 is a partial enlarged view of the A;

[0039] Figure 3 is a schematic diagram of the structure of a connector and a sealing plug connected by a connecting belt;

[0040] Figure 4 is a schematic diagram of the structure of another connector and sealing plug connected by a connecting belt.

[0041] The marks in the drawings and the corresponding component names are as follows:

[0042] 1, oxygen storage bag; 2, first oxygen supply hose; 3, air bag; 31, gas input pipe; 32, gas output pipe; 33, oxygen connecting pipe; 34, locking valve; 35, first one-way valve; 36, pressure safety valve; 37, second one-way valve; 4, second oxygen supply hose; 5, connector; 51, first connecting part; 52, second connecting part; 53, first center hole; 54, first sealing ring; 6, sealing plug; 61, first sealing member; 62, first plug head; 63, second sealing ring; 64, first sealing plate; 65, second sealing member; 66, second plug head; 67, third sealing ring; 68, second sealing plate; 69, second center hole; 71, first connecting belt; 72, second connecting belt. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with examples and drawings, and the schematic embodiments of the present application and the description are only used to explain the present application, and should not be regarded as a limitation on the present application.

[0044] First embodiment:

[0045] A leak-proof oxygen pillow, such as Figure 1 and Figure 2As shown, including oxygen storage bag 1, air bag 3 and the first oxygen supply hose 2, the first oxygen storage bag 1 and air bag 3 through the first oxygen supply hose 2 connection, connection mode can be threaded connection, plug-in connection, etc., but also can be processed into a whole by different materials made of oxygen storage bag 1, the first oxygen supply hose 2 and air bag 3;

[0046] The above-mentioned air bag 3 is provided with a gas input pipe 31, a gas output pipe 32 and an oxygen connection pipe 33, the oxygen connection pipe 33 is connected with the first oxygen supply hose 2, the gas output pipe 32 is connected with the second oxygen supply hose 4, the connection mode can be threaded connection, plug-in connection, etc., but also can be processed into a whole by different materials made of oxygen storage bag 1, the first oxygen supply hose 2, air bag 3 and the second oxygen supply hose 4; the second oxygen supply hose 4 is used for connecting the oxygen inhalation device;

[0047] The above-mentioned gas input pipe 31 is provided with a locking valve 34 and a first one-way valve 35, the locking valve 34 and the first one-way valve 35 are normally closed, the locking valve 34 can adopt a threaded pipe cover, a plastic pipe plug, a water stop valve, etc.; the first one-way valve 35 is used for passing through the gas from the gas input pipe 31 to the air bag 3; the gas flowing to the air bag 3 passes through the locking valve 34 and the first one-way valve 35 in turn;

[0048] The above-mentioned gas output pipe 32 is provided with a second one-way valve 37 and a pressure safety valve 36, the second one-way valve 37 is used for passing through the gas from the air bag 3 to the second oxygen supply hose 4.

[0049] The above-mentioned locking valve 34 remains closed when not in use, preventing external air from entering the air bag 3 and preventing the air bag 3 from being contaminated; when oxygen needs to be filled, the oxygen pipe can be connected to the gas input pipe 31 first, and then the locking valve 34 is manually opened, so that the oxygen enters the air bag 3 smoothly, after the filling is completed, the locking valve 34 is closed again, and then the oxygen pipe is disconnected. The first one-way valve 35 is arranged behind the locking valve 34, allowing the gas to flow from the gas input pipe 31 to the air bag 3, preventing the gas in the air bag 3 from flowing back to the gas input pipe 31, ensuring that the gas can smoothly enter the air bag 3 during the inflation process, and the oxygen in the air bag 3 will not leak out through the gas input pipe 31 after the inflation is completed. The second one-way valve 37 and the pressure safety valve 36 are arranged on the gas output pipe 32,

[0050] The second one-way valve 37 only allows gas to flow from the air bag 3 to the second oxygen supply hose 4, preventing the gas in the oxygen inhalation device from flowing back to the air bag 3, ensuring that the oxygen in the air bag 3 can be smoothly delivered to the oxygen inhalation device during oxygen inhalation, and preventing the oxygen in the air bag 3 and the oxygen storage bag 1 from being contaminated; by setting the pressure safety valve 36, when the air bag 3 is squeezed and the pressure in the air bag 3 reaches a threshold value, the pressure safety valve 36 will open, thereby releasing oxygen, preventing the air bag 3 from being damaged due to overpressure; solving the problem of oxygen release from the oxygen pillow when not in use, thereby reducing the probability of oxygen leakage from the oxygen pillow.

[0051] Second embodiment:

[0052] Based on the first embodiment, as shown in Figure 3 The connection head 5 is provided with a first central hole 53, which is in communication with the second oxygen supply tube; the connection head 5 is provided with a sealing plug 6, which is used to block the first central hole 53 of the connection head 5; a second connecting belt 72 is provided between the connection head 5 and the sealing plug 6, which connects the connection head 5 and the sealing plug 6, ensuring that the sealing plug 6 is always connected to the connection head 5, preventing the sealing plug 6 from being lost during use or storage.

[0053] A first central hole 53 is provided on the connection head 5, which is in communication with the second oxygen supply hose 4 and is used to connect the oxygen inhalation device (such as a nasal cannula or a mask); the sealing plug 6 is used to block the first central hole 53 of the connection head 5, preventing oxygen from leaking from the second oxygen supply hose 4 when not in use. When the oxygen pillow is not in use, the sealing plug 6 can be inserted into the first central hole 53 of the connection head 5 to completely block the outlet of the second oxygen supply hose 4, so that even if there is oxygen in the second oxygen supply hose 4, it will not leak out through the first central hole 53; in combination with the pressure safety valve 36 and the second one-way valve 37 on the air bag 3, the sealing plug 6 provides an additional layer of protection to ensure that the sealing performance of the oxygen pillow is optimal when not in use. When the oxygen pillow is needed, the sealing plug 6 is simply pulled out and the oxygen inhalation device is connected to the connection head 5, and after use, the sealing plug 6 is reinserted, which is simple and quick. The design of the sealing plug 6 can also reduce the risk of contamination of the connection head 5 when not in use, ensuring the safety and hygiene of the next use.

[0054] In a specific embodiment, the connection head 5 includes a first connecting part 51 and a second connecting part 52, the first connecting part 51 is connected to the second oxygen supply hose 4 by screwing or clamping, and the second connecting part 52 is used to connect the oxygen inhalation device;

[0055] The inner wall of the second connecting part 52 is provided with a first sealing ring 54, which can be made of an anti-aging and corrosion-resistant elastic material, such as silica gel or rubber, to ensure the sealing performance after long-term use; the inner wall of the first sealing ring 54 extends to the axis of the first central hole 53, forming a conical or cylindrical sealing structure to ensure close contact with the outer wall of the oxygen inhalation device.

[0056] When the oxygen inhalation device is inserted into the second connecting part 52 of the connecting head 5, the first sealing ring 54 will closely contact the outer wall of the oxygen inhalation device to form a seal, effectively preventing oxygen leakage at the connection and ensuring the stability of oxygen transmission.

[0057] Third embodiment:

[0058] On the basis of the second embodiment, the inner diameter of the first sealing ring 54 arranged from the first connecting part 51 to the second connecting part 52 gradually increases, including the following cases:

[0059] First: the second connecting part 52 is trumpet-shaped, as shown in Figure 3 and Figure 4 The thickness of the first sealing ring 54 arranged inside is the same, that is, the difference between the inner circle and the outer circle is the same.

[0060] Second: the second connecting part 52 is cylindrical, and the thickness of the first sealing ring 54 arranged inside gradually increases from the first connecting part 51 to the second connecting part 52.

[0061] The inner diameter of the first sealing ring 54 gradually increases from the first connecting part 51 to the second connecting part 52, forming a multi-stage sealing structure. When the oxygen inhalation device is inserted into the connecting head 5, multiple sealing rings will closely contact the outer wall of the oxygen inhalation device in turn, forming multiple seals; the step-by-step sealing of multiple sealing rings can effectively prevent oxygen leakage at the connection and ensure the stability of oxygen transmission, especially in the case of long-term use or frequent insertion and removal, which can maintain good sealing performance. In addition, the design of gradually changing inner diameter makes the insertion and removal of the oxygen inhalation device more smooth, reduces the resistance during insertion and removal, and improves the user's convenience. The close contact of the sealing ring can reduce the opportunity for external pollutants to enter the inside of the connecting head 5, keeping the connection part clean and hygienic. By increasing multiple sealing rings, the overall reliability of the connecting head 5 is improved, reducing the risk of oxygen leakage caused by poor connection.

[0062] Fourth embodiment:

[0063] On the basis of the third embodiment, the spacing of the first sealing ring 54 gradually increases from the first connecting part 51 to the second connecting part 52.

[0064] The inner diameter of the first sealing ring 54 gradually increases from the first connecting part 51 to the second connecting part 52, forming a multi-stage sealing structure. When the oxygen inhalation device is inserted into the connector 5, the multiple sealing rings will be in close contact with the outer wall of the oxygen inhalation device in turn, forming multiple seals; from the first connecting part 51 to the second connecting part 52, the arrangement spacing of the first sealing ring 54 gradually increases, ensuring that at least one first sealing ring 54 is in contact with the oxygen inhalation device and sealed during insertion, while ensuring the sealing effect, reducing the insertion resistance introduced by the too dense first sealing ring 54. In addition, the gradually changing inner diameter and gradually changing spacing make the insertion and removal of the oxygen inhalation device more smooth, reducing the resistance during insertion and removal, and improving the user's convenience of use.

[0065] Fifth embodiment:

[0066] On the basis of the second embodiment, as shown in Figure 3 The sealing plug 6 includes a first sealing member 61, and the first sealing member 61 includes a first plug head 62 and a first sealing plate 64. The first plug head 62 can be cylindrical or conical and matches the first central hole 53 of the connector 5.

[0067] The first plug head 62 is arranged on the first sealing plate 64, which extends out of the first plug head 62 to form a flat or slightly curved structure for abutting against the end of the connector 5.

[0068] The outer side wall of the first plug head 62 is provided with a second sealing ring 63, forming an annular protrusion to ensure close contact with the inner side wall of the second connecting part 52 of the connector 5; the first plug head 62 and the first sealing plate 64 can be made of materials resistant to aging and corrosion, such as medical-grade plastics or rubber, to ensure the sealing performance after long-term use.

[0069] When the sealing plug 6 blocks the first central hole 53 of the connector 5, the first plug head 62 is inserted into the first central hole 53, the outer side wall of the second sealing ring 63 is in close contact with the inner side wall of the second connecting part 52, and the part of the first sealing plate 64 extending out of the first plug head 62 abuts against the end of the connector 5.

[0070] A force plate can be arranged on the sealing plate, which extends out of the sealing plate to facilitate the force exerted by the operator.

[0071] When the first plug head 62 is inserted into the first central hole 53, the second sealing ring 63 tightly abuts the inner side wall of the second connecting part 52 of the connecting head 5, forming the first seal. At the same time, the first sealing plate 64 abuts the end of the connecting head 5, forming the second seal, ensuring that the connecting head 5 is completely closed when not in use. Through the double-sealing design of the first plug head 62 and the first sealing plate 64, oxygen leakage from the connecting head 5 is effectively prevented, ensuring the sealing performance of the oxygen pillow when not in use. The double-sealing design effectively prevents accidental leakage when not in use, especially during transportation or storage, ensuring the sealing performance of the oxygen pillow.

[0072] Sixth embodiment:

[0073] Based on the fifth embodiment, as shown in Figure 4 The sealing plug 6 further includes a second sealing member 65, which is provided with a first connecting band 71 connecting the first sealing member 61 and the second sealing member 65.

[0074] The second sealing member 65 is provided with a second central hole 69, which can be cylindrical or conical.

[0075] The second sealing member 65 includes a second plug head 66 and a second sealing plate 68, and the second plug head 66 can be cylindrical or conical, matching the first central hole 53 of the connecting head 5.

[0076] The second plug head 66 is provided on the second sealing plate 68, which extends beyond the second plug head 66.

[0077] The outer side wall of the second plug head 66 is provided with a third sealing ring 67.

[0078] When the sealing plug 6 plugs the first central hole 53 of the connecting head 5, the second plug head 66 is inserted into the first central hole 53, the outer side wall of the third sealing ring 67 abuts the inner side wall of the second connecting part 52, and the second sealing plate 68 extending beyond the second plug head 66 abuts the end of the connecting head 5, the first plug head 62 is inserted into the second central hole 69, the outer side wall of the second sealing ring 63 abuts the inner side wall of the second sealing member 65, and the first sealing plate 64 extending beyond the first plug head 62 abuts the end of the second sealing member 65.

[0079] Since the oxygen inhalation devices are various, a plurality of interfaces need to be prepared for backup, so a second central hole 69 is formed on the second sealing member 65 for connecting the oxygen inhalation device; when the second oxygen supply hose 4 is blocked, not only the first central hole 53 needs to be blocked, but also the second central hole 69 needs to be blocked; therefore, in order to block the first central hole 53, the second plug head 66 is inserted into the first central hole 53 of the connector 5, at this time, the third sealing ring 67 is tightly attached to the inner side wall of the second connecting part 52 of the connector 5, forming the first sealing; at the same time, the second sealing plate 68 abuts against the end of the connector 5, forming the second sealing; in order to block the second central hole 69, the first plug head 62 is inserted into the second central hole 69, the second sealing ring 63 is tightly attached to the inner side wall of the second sealing member 65, forming the first sealing, at the same time, the first sealing plate 64 abuts against the end of the second sealing member 65, forming the second sealing; through the multi-stage sealing design, the leakage of oxygen from the connector 5 is effectively prevented, and the sealing performance of the oxygen pillow when not in use is ensured. The first connecting band 71 is arranged to connect the first sealing member 61 and the second sealing member 65, facilitating the sealing operation.

[0080] The first plug head 62, the first sealing plate 64, the second plug head 66 and the second sealing plate 68 can be made of anti-aging and anti-corrosion materials, such as medical-grade plastics or rubbers; the second sealing ring 63 and the third sealing ring 67 can be made of high-elasticity materials, such as silica gel or rubber, ensuring the sealing performance after long-term use.

[0081] The above specific embodiments have further detailed the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above description is only the specific embodiments of the present application and is not used to limit the protection scope of the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A leak-proof oxygen pillow, characterized in that, The oxygen storage bag (1), the gas bag (3) and the first oxygen supply hose (2) are connected by the first oxygen supply hose (2); The gas input pipe (31), the gas output pipe (32) and the oxygen connection pipe (33) are arranged on the gas bag (3), the oxygen connection pipe (33) is connected with the first oxygen supply hose (2), the gas output pipe (32) is connected with the second oxygen supply hose (4), and the second oxygen supply hose (4) is used for connecting the oxygen inhalation device; The gas input pipe (31) is provided with a locking valve (34) and a first one-way valve (35), the locking valve (34) is normally closed; the first one-way valve (35) is used for the gas flowing from the gas input pipe (31) to the gas bag (3); the gas flowing to the gas bag (3) passes through the locking valve (34) and the first one-way valve (35) in sequence. The gas output pipe (32) is provided with a second one-way valve (37) and a pressure safety valve (36), and the second one-way valve (37) is used for the gas flowing from the gas bag (3) to the second oxygen supply hose (4).

2. The oxygen pillow of claim 1, wherein, The second oxygen supply hose (4) is provided with a connecting head (5) away from the gas bag (3), the connecting head (5) is provided with a first center hole (53), and the first center hole (53) is in communication with the second oxygen supply pipe; The connecting head (5) is provided with a sealing plug (6), and the sealing plug (6) is used for plugging the first center hole (53) of the connecting head (5).

3. The oxygen pillow of claim 2, wherein, The connecting head (5) comprises a first connecting part (51) and a second connecting part (52), the first connecting part (51) is connected with the second oxygen supply hose (4), and the second connecting part (52) is used for connecting the oxygen inhalation device; The first sealing ring (54) is arranged on the inner wall of the second connecting part (52), and the inner wall of the first sealing ring (54) extends to the axis of the first center hole (53).

4. The oxygen pillow of claim 3, wherein, The inner diameter of the first sealing ring (54) gradually increases from the first connecting part (51) to the second connecting part (52).

5. The oxygen pillow of claim 4, wherein, The spacing of the first sealing ring (54) gradually increases from the first connecting part (51) to the second connecting part (52).

6. The oxygen pillow of claim 2, wherein, The sealing plug (6) comprises a first sealing member (61), and the first sealing member (61) comprises a first plug head (62) and a first sealing plate (64); The first plug head (62) is arranged on the first sealing plate (64), and the first sealing plate (64) extends out of the first plug head (62); The outer side wall of the first plug head (62) is provided with a second sealing ring (63); When the sealing plug (6) plugs the first center hole (53) of the connecting head (5), the first plug head (62) is inserted into the first center hole (53), the outer side wall of the second sealing ring (63) is matched with the inner side wall of the second connecting part (52), and the first sealing plate (64) extending out of the first plug head (62) is partially abutted against the end of the connecting head (5).

7. The oxygen pillow of claim 6, wherein, The sealing plug (6) further comprises a second sealing member (65), a first connecting belt (71) is arranged on the second sealing member (65), and the first sealing member (61) and the second sealing member (65) are connected through the first connecting belt (71). The second sealing member (65) is provided with a second center hole (69); The second sealing member (65) comprises a second plug head (66) and a second sealing plate (68); The second plug head (66) is arranged on the second sealing plate (68), and the second sealing plate (68) extends out of the second plug head (66); An outer side wall of the second plug head (66) is provided with a third sealing ring (67); When the sealing plug (6) seals the first center hole (53) of the connecting head (5), the second plug head (66) is inserted into the first center hole (53), the outer side wall of the third sealing ring (67) is attached to the inner side wall of the second connecting part (52), the second sealing plate (68) extending out of the second plug head (66) is partially attached to the end of the connecting head (5), the first plug head (62) is inserted into the second center hole (69), the outer side wall of the second sealing ring (63) is attached to the inner side wall of the second sealing member (65), and the first sealing plate (64) extending out of the first plug head (62) is partially attached to the end of the second sealing member (65).

8. The oxygen pillow of claim 2, wherein, A second connecting band (72) is arranged between the connecting head (5) and the sealing plug (6), and the connecting head (5) and the sealing plug (6) are connected through the second connecting band (72).

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