Oxygen bottle and oxygen respirator

Abstract

The utility model relates to the field of ventilation treatment equipment, and discloses an oxygen bottle and an oxygen respirator. The oxygen bottle (10) comprises a bottle body (11), the bottle body (11) is provided with an oxygen storage cavity and a dilatation opening (112) communicated with the oxygen storage cavity, and the dilatation opening (112) has a closed state and an open state which is communicated with another oxygen bottle (10) to achieve dilatation. The oxygen bottle provided by the utility model not only can supply oxygen independently, but also can be communicated with other oxygen bottles through the expansion port to realize expansion, thereby realizing long-time oxygen supply or meeting the requirement of multiple persons for oxygen inhalation at the same time. The oxygen supply device not only can solve the problems that the capacity is limited, and long-time oxygen inhalation or oxygen supply of multiple people cannot be met, but also is small in single body size, convenient to use and capable of flexibly adapting to different capacity requirements.

Description

Technical Field

[0001] The utility model relates to the field of ventilation treatment equipment, in particular to an oxygen cylinder and an oxygen respirator comprising the oxygen cylinder. Background Art

[0002] An oxygen respirator is a device that stores oxygen and supplies it to the human body through an oxygen inhalation device. When inhaling oxygen, oxygen is supplied to the human body through the oxygen output device of the bottle itself. It is generally used in scenarios such as home recuperation and medical care, and can also be used by people with altitude sickness. Traditional oxygen respirators are generally small in size, easy to carry, and can be refilled with oxygen after use.

[0003] However, due to the limited capacity of traditional oxygen respirators, they cannot meet the needs of long-term oxygen inhalation or multiple people. In order to solve this problem, some oxygen respirators on the market currently increase capacity by increasing the volume of the single unit, but this method requires the use of a device with an outer protective cover when the volume of the single unit of the oxygen respirator is greater than 12L, and the large volume of the single unit makes it inconvenient to use and cannot flexibly adapt to different capacity requirements; some oxygen respirators use medical oxygen cylinder busbars to achieve capacity expansion, but this method is limited by the busbar tool, resulting in inflexible connection numbers and limited application scenarios. Utility Model Content

[0004] The utility model aims to overcome the problem that the existing expansion method of oxygen respirator has a large single unit volume and cannot flexibly adapt to different capacity requirements.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an oxygen cylinder on the one hand, which includes a bottle body, the bottle body has an oxygen storage cavity and an expansion port connected to the oxygen storage cavity, and the expansion port has a closed state and an open state that is connected to another oxygen cylinder to achieve expansion.

[0006] In some embodiments, an expansion port switch control device is installed at the expansion port, and the expansion port switch control device is used to open or close the expansion port.

[0007] In some embodiments, the expansion port switch control device is configured to be opened by being installed in conjunction with another oxygen cylinder.

[0008] In some embodiments, the bottle body further has an air outlet communicated with the oxygen storage chamber, and the air outlet has a closed state and an open state.

[0009] In some embodiments, an air outlet switch control device is installed at the air outlet, and the air outlet switch control device is used to open or close the air outlet; preferably, the air outlet switch control device can be opened by cooperating with the oxygen supply valve or by cooperating with the installation of another oxygen cylinder.

[0010] In some embodiments, the expansion port switch control device is an expansion port valve, and the outlet port switch control device is an outlet valve; the expansion port valve can be opened by cooperating with the outlet valve or the expansion port valve of another oxygen cylinder.

[0011] In some embodiments, the bottle body has one gas outlet and a plurality of expansion ports, the gas outlet is located at the top or bottom of the bottle body, and the plurality of expansion ports are arranged at intervals on the side of the bottle body along the circumference of the bottle body.

[0012] In some embodiments, the air outlet is located at the top of the bottle body, and the upper part of the bottle body is provided with an annular extension portion protruding radially outward from the outer peripheral surface of the bottle body, the outer peripheral contour of the annular extension portion is a polygon, and each side wall of the annular extension portion is correspondingly provided with an expansion port.

[0013] In some embodiments, one of the multiple expansion ports is formed as a male expansion port, and the rest are formed as female expansion ports. The expansion port valve arranged at the female expansion port is called a female expansion port valve, and the expansion port valve arranged at the male expansion port is called a male expansion port valve. The male expansion port of one oxygen cylinder can be adaptably inserted into the female expansion port of another oxygen cylinder and the corresponding female expansion port valve and the male expansion port valve can be opened.

[0014] In some embodiments, the female expansion port valve includes a female one-way valve stem coaxially installed in the female expansion port, a female one-way valve spring and a female one-way valve sealing ring sleeved on the female one-way valve stem, and the female one-way valve sealing ring is in sealing contact with the inner circumferential surface of the female expansion port; the male expansion port valve includes a male one-way valve stem coaxially installed in the male expansion port, a male one-way valve spring and a male one-way valve sealing ring sleeved on the male one-way valve stem, and the male one-way valve sealing ring is in sealing contact with the inner circumferential surface of the male expansion port.

[0015] In some embodiments, a first connecting structure is provided on the side wall of the annular extension portion where the female expansion port is located, and a second connecting structure adapted to the first connecting structure is provided on the side wall of the annular extension portion where the male expansion port is located; preferably, the oxygen cylinder also includes a fixing structure for fixing the first connecting structure and the second connecting structure.

[0016] In some embodiments, the first connection structure includes two connection holes respectively arranged on both sides of the female expansion port, the second connection structure includes two connection columns respectively arranged on both sides of the male expansion port, the two connection columns are adapted to the two connection holes, the fixing structure includes two fixing holes and two fixing screws, the two fixing holes correspond to the two connection holes, the fixing holes extend radially along the corresponding connection holes and are connected to the connection holes, and the fixing screws can be inserted into the fixing holes and connected to the connection columns inserted into the corresponding connection holes.

[0017] In some embodiments, the bottle body has an air outlet and an expansion port, the air outlet is located at the top or bottom of the bottle body, and the expansion port is located at the top or bottom of the bottle body.

[0018] In some embodiments, the air outlet valve and the expansion port valve can also be connected by cooperating with an intermediate connecting piece.

[0019] In some embodiments, the intermediate connecting piece includes a connecting conduit, both ends of which are respectively formed as quick-plug interfaces, and the quick-plug interfaces can be inserted into the air outlet or the expansion port to open the air outlet valve or the expansion port valve.

[0020] In some embodiments, the intermediate connecting piece further includes a connecting switch disposed on the connecting conduit for controlling the connecting conduit to be turned on and off.

[0021] Another aspect of the utility model provides an oxygen respirator, comprising an oxygen supply valve and the above oxygen cylinder.

[0022] In some embodiments, the oxygen supply valve has a communication port and an oxygen supply port, the communication port is configured to be inserted into the gas outlet to open the gas outlet valve, and the oxygen supply port is used to supply oxygen to the patient end.

[0023] In some embodiments, the oxygen supply valve further has an oxygen filling port, and the oxygen filling port is connected with the communication port and the oxygen supply port.

[0024] Through the above technical solution, the utility model can supply oxygen by itself, and can also expand the capacity by connecting with other oxygen cylinders through the expansion port, so as to achieve long-term oxygen supply or meet the needs of multiple people to breathe oxygen at the same time. The utility model can not only solve the problem of limited capacity and inability to meet the needs of long-term oxygen breathing or multiple people, but also has a small single volume, is easy to use, and can flexibly adapt to different capacity requirements.

[0025] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic implementation modes and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0027] Figure 1 This is a front view of an embodiment of the oxygen cylinder in the utility model;

[0028] Figure 2 yes Figure 1 A top-down perspective view of the medium oxygen cylinder;

[0029] Figure 3 It is an exploded view of the first embodiment of the oxygen respirator in the utility model;

[0030] Figure 4 yes Figure 3 Exploded view of the middle female expansion port valve;

[0031] Figure 5 yes Figure 3 Exploded view of the Zhonggong expansion port valve;

[0032] Figure 6 It is a cross-sectional view of the first embodiment of the oxygen respirator in the utility model;

[0033] Figure 7 It is an exploded view of the second embodiment of the oxygen respirator in the utility model;

[0034] Figure 8 It is a schematic diagram of a third embodiment of the oxygen respirator in the utility model;

[0035] Fig. 9 It is a schematic diagram of a fourth embodiment of the oxygen respirator in the utility model.

[0036] Description of Reference Numerals

[0037] 10-oxygen cylinder, 11-bottle body, 110-annular extension, 111-gas outlet, 112-expansion port, 112a-female expansion port, 112b-male expansion port, 113-connecting hole, 114-connecting column, 115-fixing hole, 12-gas outlet valve, 13-expansion port valve, 13a-female expansion port valve, 131a-female check valve stem, 132a-female check valve spring, 133a-female check valve sealing ring, 1 3b-male expansion port valve, 131b-male one-way valve stem, 132b-male one-way valve spring, 133b-male one-way valve sealing ring, 1311-groove, 1312-limiting part, 14-fixing screw, 15-sealing ring, 20-oxygen supply valve, 21-connecting port, 22-oxygen supply port, 23-oxygen filling port, 24-oxygen filling port valve, 30-intermediate connecting piece, 31-connecting conduit, 311-quick plug interface, 32-connecting switch. DETAILED DESCRIPTION

[0038] The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings. The following detailed description of the embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present invention, but cannot be used to limit the scope of the present invention. The present invention can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

[0039] The utility model provides these embodiments to make the utility model thorough and complete, and to fully express the scope of the utility model to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​described in these embodiments should be interpreted as merely exemplary, rather than as limiting.

[0040] It should be noted that, in the description of the present invention, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0041] In addition, the words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0042] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0043] All terms used in the present invention have the same meanings as those understood by ordinary technicians in the field to which the present invention belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0044] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0045] The utility model provides an oxygen cylinder, see Figure 1 and Figure 2 The oxygen cylinder 10 includes a cylinder body 11, which has an oxygen storage cavity and an expansion port 112 connected to the oxygen storage cavity. The expansion port 112 has a closed state and an open state connected to another oxygen cylinder 10 to achieve expansion.

[0046] Through the above technical solution, the utility model can supply oxygen by itself, and can also be connected with other oxygen cylinders 10 through the expansion port 112 to achieve expansion, so as to achieve long-term oxygen supply or meet the needs of multiple people to breathe oxygen at the same time. The utility model can not only solve the problem of limited capacity and inability to meet the needs of long-term oxygen breathing or multiple people, but also has a small single volume, is easy to use, and can flexibly adapt to different capacity requirements.

[0047] In some embodiments, an expansion port switch control device is installed at the expansion port 112, and the expansion port switch control device is used to open or close the expansion port 112. The expansion port switch control device can be opened by cooperating with the installation of another oxygen cylinder 10. The expansion port switch control device can be any appropriate structure as long as it can realize the opening and closing of the expansion port 112. For example, the expansion port switch control device can be an expansion port valve 13, and the expansion port valve 13 can be, for example, a manual valve, a solenoid valve, or a one-way valve. In the case where the expansion port valve 13 is a one-way valve, the expansion port valve 13 can be opened by cooperating with the outlet valve 12 or the expansion port valve 13 of another oxygen cylinder 10, which will be described in detail below.

[0048] In the present invention, the bottle body 11 may also have an air outlet 111 communicated with the oxygen storage chamber, and the air outlet 111 has a closed state and an open state.

[0049] In some embodiments, a gas outlet switch control device is installed at the gas outlet 111, and the gas outlet switch control device is used to open or close the gas outlet 111. The gas outlet switch control device can be opened by cooperating with the oxygen supply valve 20 or by cooperating with the installation of another oxygen cylinder 10. The gas outlet switch control device can be any appropriate structure as long as it can realize the opening and closing of the gas outlet 111. For example, the switch control device can be a gas outlet valve 12. The gas outlet valve 12 can be, for example, a manual valve, a solenoid valve, or a one-way valve, specifically, for example, a valve sheet that is sealed by the pressure of the bottle body and opened by cooperating with the oxygen supply valve.

[0050] The oxygen supply valve 20 is used to realize the controllable connection between the oxygen cylinder and the patient end to supply oxygen to the patient, and can also be used to fill the oxygen cylinder with oxygen, which will be described in detail below. The oxygen supply valve 20 can be any valve, such as a manual valve, a solenoid valve, a one-way valve, a breathing valve (a valve that supplies oxygen in coordination with human breathing), etc.

[0051] In some embodiments, the bottle body 11 has a gas outlet 111 and multiple expansion ports 112, the gas outlet 111 is located at the top or bottom of the bottle body 11, and the multiple expansion ports 112 are arranged at the side of the bottle body 11 along the circumference of the bottle body 11. In this way, one oxygen cylinder 10 can be connected to multiple other oxygen cylinders 10 through the multiple expansion ports 112 thereon, thereby achieving unlimited expansion. In actual use, a corresponding number of oxygen cylinders 10 can be connected according to capacity requirements. The multiple oxygen cylinders 10 that are connected can be used to supply oxygen to a single person through one of the gas outlets 111, or can be used to supply oxygen to multiple people through multiple gas outlets 111.

[0052] Among them, for the communication of the expansion ports 112 between different oxygen cylinders 10, according to an embodiment of the utility model, one of the multiple expansion ports 112 is formed as a male expansion port 112b, and the rest are formed as female expansion ports 112a, and the expansion port valve 13 provided at the female expansion port 112a is called a female expansion port valve 13a, and the expansion port valve 13 provided at the male expansion port 112b is called a male expansion port valve 13b, and the male expansion port 112b of one oxygen cylinder 10 can be adaptively inserted into the female expansion port 112a of another oxygen cylinder 10 and the corresponding female expansion port valve 13a and male expansion port valve 13b are opened. Of course, in other embodiments, the number of male expansion ports 112b and female expansion ports 112a on the oxygen cylinder 10 can be set arbitrarily. Alternatively, the expansion ports on one oxygen cylinder 10 may all be set as male expansion ports 112b, and the expansion ports on another oxygen cylinder 10 may all be set as female expansion ports 112a, thereby achieving limited expansion.

[0053] Among them, see Figure 4 and Figure 6 The female expansion port valve 13a may include a female port one-way valve stem 131a coaxially installed in the female expansion port 112a, a female port one-way valve spring 132a and a female port one-way valve sealing ring 133a sleeved on the female port one-way valve stem 131a (the female port one-way valve stem 131a may be provided with a groove for the female port one-way valve sealing ring 133a to be embedded), and the female port one-way valve sealing ring 133a is in sealing contact with the inner circumference of the female expansion port 112a. Figure 5 and Figure 6 The male expansion port valve 13b includes a male check valve stem 131b coaxially mounted in the male expansion port 112b, a male check valve spring 132b sleeved on the male check valve stem 131b, and a male check valve seal ring 133b (a groove for embedding the male check valve seal ring 133b may be provided on the male check valve stem 131b), and the male check valve seal ring 133b is in sealing contact with the inner circumference of the male expansion port 112b. When in use, when the male expansion port 112b of one oxygen cylinder 10 is inserted into the female expansion port 112a of another oxygen cylinder 10, the male check valve stem 131b in the male expansion port 112b will be squeezed by the female check valve stem 131a in the female expansion port 112a to open, so that the male expansion port 112b is connected to the female expansion port 112a.

[0054] The structures of the female expansion port valve 13a and the male expansion port valve 13b are substantially the same. Figure 4 and Figure 5 That is to say, the structures of the expansion port valves 13 are the same. Taking the female expansion port valve 13a as an example, Figure 4As shown, the female port one-way valve stem 131a is also provided with a groove 1311 for embedding the female port one-way valve sealing ring 133a and a limiting portion 1312 for limiting the movement of the female port one-way valve stem 131a. Figure 4 The limiting portion 1312 is in the form of a boss. During the inward movement of the female one-way valve stem 131a, the limiting portion 1312 can prevent the female one-way valve stem 131a from continuing to move inward by abutting against the inner end wall of the female expansion port 112a.

[0055] Specifically, Figure 1 and Figure 2 As shown, the bottle body 11 is a hollow cylinder, and an air outlet 111 is provided at the top of the bottle body 11. An annular extension portion 110 is provided at the upper part of the bottle body 11. The outer peripheral contour of the annular extension portion 110 is a polygon. Each side of the polygon is not limited to a straight line, an arc or other arbitrary shape. In one embodiment provided by the utility model, the polygon is a regular hexagon. The annular extension portion 110 includes an annular top wall, an annular bottom wall and six side walls connected between the annular top wall and the annular bottom wall. The top surface of the annular extension portion 110 is flush with the top surface of the bottle body 11, and one of the side walls of the annular extension portion 110 is correspondingly provided with a male expansion port 112b, and the other five side walls are correspondingly provided with female expansion ports 112a.

[0056] like Figure 6 As shown, the inner end of the female expansion port 112a extends into the bottle body 11, the outer end of the female expansion port 112a is flush with the corresponding side wall of the annular extension portion 110, and the inner diameter of the female expansion port 112a is set to decrease from the inner end to the outer end. The female one-way valve stem 131a is coaxially inserted into the female expansion port 112a, and the two ends of the female one-way valve spring 132a are respectively abutted against the inner end wall of the female expansion port 112a and the female one-way valve stem 131a, and the female one-way valve sealing ring 133a is in contact with the inner circumference of the small diameter portion of the female expansion port 112a. When the female one-way valve stem 131a is subjected to an inward extrusion force, the female one-way valve stem 131a moves inward so that there is a gap between the female one-way valve sealing ring 133a and the inner circumference of the female expansion port 112a, thereby connecting the female expansion port 112a. When the inward extrusion pressure on the female one-way valve stem 131a disappears, the female one-way valve stem 131a moves outward and resets under the restoring action of the female one-way valve spring 132a, and makes the female one-way valve sealing ring 133a contact the inner circumferential surface of the female expansion port 112a, thereby closing the female expansion port 112a.

[0057] like Figure 6As shown, the inner end of the male expansion port 112b extends into the bottle body 11, and the outer end of the male expansion port 112b extends out of the corresponding side wall of the annular extension portion 110, and the inner diameter of the male expansion port 112b is set to decrease from the inner end to the outer end. The male port check valve stem 131b is coaxially inserted into the male expansion port 112b, and the two ends of the male port check valve spring 132b are respectively abutted against the inner end wall of the male expansion port 112b and the male port check valve stem 131b, and the male port check valve sealing ring 133b is in contact with the inner circumferential surface of the small diameter portion of the male expansion port 112b. When the male port check valve stem 131b is subjected to an inward extrusion force, the male port check valve stem 131b moves inward so that there is a gap between the male port check valve sealing ring 133b and the inner circumferential surface of the male expansion port 112b, thereby connecting the male expansion port 112b. When the inward squeezing force on the male one-way valve stem 131b disappears, the male one-way valve stem 131b moves outward and resets under the restoring action of the male one-way valve spring 132b, and makes the male one-way valve sealing ring 133b contact the inner circumference of the male expansion port 112b, thereby closing the male expansion port 112b.

[0058] like Figure 6 As shown, when the male expansion port 112b of one oxygen cylinder 10 is inserted into the female expansion port 112a of another oxygen cylinder 10, the corresponding female one-way valve stem 131a and the male one-way valve stem 131b are pressed against each other and move inward respectively, so that the male expansion port 112b is connected with the female expansion port 112a. When the male expansion port 112b is pulled out of the female expansion port 112a, the corresponding female one-way valve stem 131a and the male one-way valve stem 131b are reset, so that the male expansion port 112b and the female expansion port 112a are closed.

[0059] When the bottle needs to be carried or transported by air, the female expansion port valve 13a and the male expansion port valve 13b can also be used to quickly release pressure on the bottle body. In other words, the female expansion port valve 13a and the male expansion port valve 13b can also be used as a quick pressure relief device.

[0060] In the present invention, in order to achieve the sealing of the male expansion port 112b and the female expansion port 112a, see Figure 6 The male expansion port 112b may also be provided with a sealing ring 15. The outer peripheral surface of the male expansion port 112b may be provided with a groove for the sealing ring 15 to be embedded.

[0061] In the present invention, in order to improve the firmness of the connection between the oxygen cylinders, a first connection structure is provided on the side wall of the annular extension portion 110 where the female expansion port 112a is located, and a second connection structure adapted to the first connection structure is provided on the side wall of the annular extension portion 110 where the male expansion port 112b is located. The first connection structure and the second connection structure can be any adapted structure that can play a connecting role, such as a snap-fit ​​structure, a complementary structure, a plug-in structure, etc. Of course, in order to further improve the firmness of the connection, the oxygen cylinder may also include a fixing structure for fixing the first connection structure and the second connection structure.

[0062] In some embodiments, Figure 1-Figure 3 As shown, the first connection structure includes two connection holes 113 respectively arranged on both sides of the female expansion port 112a, and the second connection structure includes two connection posts 114 respectively arranged on both sides of the male expansion port 112b. The two connection posts 114 are adapted to the two connection holes 113. The fixing structure includes two fixing holes 115 and two fixing screws 14. The two fixing holes 115 correspond to the two connection holes 113. The fixing holes 115 extend along the radial direction of the corresponding connection holes 113 and communicate with the connection holes 113. The fixing screws 14 can be inserted into the fixing holes 115 and connected with the connection posts 114 inserted into the corresponding connection holes 113. The fixing screws 14 can be connected by abutting or plugging with the connection posts 114 (i.e., the connection posts 114 are provided with holes for the fixing screws 14 to be inserted, such as Figure 2 As shown) realizes connection with the connecting column 114.

[0063] The oxygen cylinders in the above embodiment are connected in the transverse direction, and in other embodiments, the oxygen cylinders may also be connected in the longitudinal direction. In this case, the bottle body 11 has an air outlet 111 and a volume expansion port 112, and the air outlet 111 and the volume expansion port 112 are respectively located at the top and the bottom of the bottle body 11.

[0064] like Figure 8 As shown, the gas outlet 111 is located at the top of the bottle body 11, and the expansion port 112 is located at the bottom of the bottle body 11. The gas outlet 111 of the upper oxygen cylinder 10 is used to connect with the oxygen supply valve 20, and the expansion port 112 of the upper oxygen cylinder 10 is connected with the gas outlet 111 of the lower oxygen cylinder 10, and the expansion port 112 of the lower oxygen cylinder 10 can also be connected with the gas outlet 111 of another oxygen cylinder 10, so as to achieve unlimited expansion. This embodiment can realize long-term oxygen supply for a single person.

[0065] In the above embodiment, the oxygen cylinders are directly connected to each other. In other embodiments, the oxygen cylinders can also be indirectly connected to each other. For example, the gas outlet valve 12 and the expansion port valve 13 can also be connected by cooperating with the intermediate connecting piece 30. That is, the gas outlet 111 of one oxygen cylinder 10 can be connected to the expansion port 112 or the gas outlet 111 of another oxygen cylinder 10 through the intermediate connecting piece 30. Or in one embodiment, the expansion port switch control device can include the above-mentioned intermediate connecting piece 30.

[0066] Specifically, see Fig. 9 The intermediate connecting member 30 includes a connecting conduit 31, and both ends of the connecting conduit 31 are respectively formed as quick-insertion interfaces 311, which can be inserted into the gas outlet 111 or the expansion port 112 to open the gas outlet valve 12 or the expansion port valve 13. Specifically, for example, after the quick-insertion interface 311 is inserted into the gas outlet 111 or the expansion port 112, the head of the quick-insertion interface 311 is used to squeeze the one-way valve stem to move and open.

[0067] In order to facilitate the control of oxygen supply, the intermediate connecting member 30 may further include a connecting switch 32 disposed on the connecting conduit 31 for controlling the opening and closing of the connecting conduit 31. When the connecting switch 32 is unilaterally connected, the connecting conduit 31 can be ensured to be airtight, thereby improving safety.

[0068] It should be noted that in Figure 8 and Fig. 9 In the embodiment shown, the air outlet valve 12 and the expansion port valve 13 are both shown in schematic diagrams. It is understandable that the air outlet valve 12 and the expansion port valve 13 can be used Figure 1-Figure 7 The structures of the air outlet valve 12 and the expansion port valve 13 may also adopt other structures.

[0069] In the utility model, Figure 1 , Figure 8 and Fig. 9 As shown, the gas outlet 111 can be a tubular structure extending outward. In addition, the expansion port 112 provided with the expansion port valve 13 can form an expansion interface.

[0070] Another aspect of the utility model provides an oxygen respirator, comprising an oxygen supply valve 20 and an oxygen cylinder 10 .

[0071] The number of oxygen cylinders 10 can be one or more. The oxygen supply valve 20 can be detachably mounted at the gas outlet 111 to cooperate with opening the gas outlet valve 12 to supply oxygen to the oxygen supply valve 20 .

[0072] For example Figure 7In the embodiment shown, the oxygen respirator includes an oxygen supply valve 20 and seven oxygen cylinders 10, the one in the middle is the main oxygen cylinder, and the six oxygen cylinders located around are expansion oxygen cylinders. An oxygen supply valve 20 is connected to the gas outlet 111 of the main oxygen cylinder for outputting oxygen to the patient, wherein the male expansion ports 112b of the five expansion oxygen cylinders are plugged with the female expansion ports 112a of the main oxygen cylinder to achieve bottle body conduction, and the female expansion port 112a of one expansion oxygen cylinder is plugged with the male expansion port 112b of the main oxygen cylinder to achieve bottle body conduction. Among them, when the male expansion port 112b is plugged with the female expansion port 112a, the connecting column 114 is also inserted into the corresponding connecting hole 113, and by further inserting the fixing screw 14 in the fixing hole 115, a reliable connection between the oxygen cylinders can be achieved.

[0073] It is conceivable that the six expansion oxygen cylinders can be further connected to other oxygen cylinders for expansion. The oxygen supply valve 20 can be connected to the gas outlet 111 of the expansion oxygen cylinder. The oxygen respirator can include multiple oxygen supply valves 20, and the multiple oxygen supply valves 20 are respectively connected to the gas outlets of multiple oxygen cylinders.

[0074] For example Figure 8 In the embodiment shown, the oxygen respirator includes an oxygen supply valve 20 and two oxygen cylinders 10, the oxygen supply valve 20 is connected to the gas outlet 111 of the upper oxygen cylinder 10, and the expansion port 112 of the upper oxygen cylinder 10 is connected to the gas outlet 111 of the lower oxygen cylinder 10. It is conceivable that the lower oxygen cylinder 10 can also be connected to other oxygen cylinders through the expansion port 112 to expand the capacity.

[0075] For example Figure 8 In the embodiment shown, the oxygen respirator includes an oxygen supply valve 20 and two oxygen cylinders 10. The oxygen supply valve 20 is connected to the gas outlet 111 of the right oxygen cylinder 10, and the expansion port 112 of the right oxygen cylinder 10 is connected to the expansion port 112 of the left oxygen cylinder 10 through an intermediate connecting piece 30.

[0076] It is conceivable that the gas outlet 111 of the oxygen cylinder 10 on the left side can also be connected to other oxygen cylinders for expansion through the intermediate connecting piece 30. The gas outlet 111 of the oxygen cylinder 10 on the left side can also be connected to the oxygen supply valve 20 to realize simultaneous oxygen supply for multiple people.

[0077] In the present invention, the oxygen supply valve 20 preferably adopts a breathing valve, and the oxygen supply valve 20 may have a connecting port 21 and an oxygen supply port 22. The connecting port 21 is configured to be inserted into the gas outlet 111 to make the gas outlet valve 12 conductive, and the oxygen supply port 22 is used to supply oxygen to the patient end. The oxygen supply valve 20 may also have an oxygen filling port 23, which is connected to the connecting port 21 and the oxygen supply port 22, and the oxygen filling port 23 is used to fill the oxygen cylinder. Among them, the connecting port 21 can be threadedly connected to the gas outlet 111.

[0078] like Figure 8 As shown, the oxygen filling port 23 is arranged below the oxygen supply port 22, and an oxygen filling port valve 24 can be arranged in the oxygen filling port 23, so that oxygen filling and oxygen inhalation can be performed simultaneously, and oxygen can be filled into the expansion oxygen cylinder through this port. The oxygen filling port valve 24 can also be used for rapid pressure relief, and the structure of the oxygen filling port valve 24 can refer to the expansion port valve or the outlet valve.

[0079] In the utility model, multiple oxygen cylinders can share one oxygen supply valve and one oxygen filling port, realizing the expansion of a single oxygen cylinder. In addition to meeting the oxygen supply needs in different scenarios, sharing one oxygen supply valve and one oxygen filling port can also achieve the purpose of reducing costs. Multiple oxygen cylinders can also use multiple oxygen supply valves to supply oxygen to multiple people at the same time, which can meet the needs of multiple people in multiple scenarios.

[0080] In addition, the utility model also provides an expansion quick-plug connector, which is arranged on the upper part of the bottle body 11 and can be fixedly connected or detachably connected to the bottle body 11. The connector includes the above-mentioned expansion port 112, wherein the expansion port 112 includes the male expansion port 112b and / or the female expansion port 112a that cooperate with each other. The specific expansion port 112 structure and installation and other connection methods have been introduced above and will not be repeated here. Figure 6 As shown, when the male expansion port 112b is inserted into the female expansion port 112a, the male one-way valve stem 131b in the male expansion port 112b and the female one-way valve stem 131a in the female expansion port 112a are squeezed against each other and opened, thereby connecting the male expansion port 112b with the female expansion port 112a, thereby achieving quick plug-in between the connectors and connecting the gas path.

[0081] In one embodiment, the joint includes a joint body. In one embodiment, the joint body may be the annular extension portion 110 , and a side wall of the annular extension portion 110 is provided with at least one expansion port 112 .

[0082] The connector body includes at least one flat surface, and the expansion port 112 is arranged on the flat surface to achieve a better sealing effect when two connectors are plugged in.

[0083] It should be noted that the connector can be used to expand the capacity of oxygen cylinders, and can also be installed on any container that needs to be connected to achieve capacity expansion.

[0084] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0085] Although some specific embodiments of the present invention have been described in detail through examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. An oxygen cylinder, characterized in that: The oxygen cylinder (10) comprises a cylinder body (11), wherein the cylinder body (11) has an oxygen storage cavity and an expansion port (112) connected to the oxygen storage cavity, wherein the expansion port (112) has a closed state and an open state in which the expansion port is connected to another oxygen cylinder (10) to achieve expansion.

2. The oxygen cylinder according to claim 1, characterized in that: An expansion port switch control device is installed at the expansion port (112), and the expansion port switch control device is used to open or close the expansion port (112); and / or The bottle body (11) also has an air outlet (111) communicating with the oxygen storage chamber, and the air outlet (111) has a closed state and an open state.

3. The oxygen cylinder according to claim 2, characterized in that: The expansion port switch control device is configured to be able to be opened by being installed in conjunction with another oxygen cylinder (10).

4. The oxygen cylinder according to claim 2, characterized in that: An air outlet switch control device is installed at the air outlet (111), and the air outlet switch control device is used to open or close the air outlet (111).

5. The oxygen cylinder according to claim 4, characterized in that: The gas outlet switch control device can be opened by cooperating with the oxygen supply valve (20) or by being installed and cooperating with another oxygen cylinder (10).

6. The oxygen cylinder according to claim 4, characterized in that: The expansion port switch control device is an expansion port valve (13), and the gas outlet switch control device is an gas outlet valve (12); the expansion port valve (13) can be opened by cooperating with the gas outlet valve (12) or the expansion port valve (13) of another oxygen cylinder (10).

7. The oxygen cylinder according to claim 6, characterized in that: The bottle body (11) comprises an air outlet (111) and a plurality of expansion ports (112); the air outlet (111) is located at the top or the bottom of the bottle body (11); and the plurality of expansion ports (112) are arranged at intervals on the side of the bottle body (11) along the circumference of the bottle body (11).

8. The oxygen cylinder according to claim 7, characterized in that: The gas outlet (111) is located at the top of the bottle body (11); the upper part of the bottle body (11) is provided with an annular extension portion (110) protruding radially outward from the outer peripheral surface of the bottle body (11); the outer peripheral contour of the annular extension portion (110) is polygonal; each side wall of the annular extension portion (110) is correspondingly provided with one expansion port (112); and / or One of the plurality of expansion ports (112) is formed as a male expansion port (112b), and the rest are formed as female expansion ports (112a); the expansion port valve (13) arranged at the female expansion port (112a) is called a female expansion port valve (13a), and the expansion port valve (13) arranged at the male expansion port (112b) is called a male expansion port valve (13b); the male expansion port (112b) of one oxygen cylinder (10) can be adaptively inserted into the female expansion port (112a) of another oxygen cylinder (10) and the corresponding female expansion port valve (13a) and the male expansion port valve (13b) can be opened.

9. The oxygen cylinder according to claim 8, characterized in that: The female expansion port valve (13a) comprises a female one-way valve stem (131a) coaxially mounted in the female expansion port (112a), and a female one-way valve spring (132a) and a female one-way valve sealing ring (133a) sleeved on the female one-way valve stem (131a); the female one-way valve sealing ring (133a) is in sealing contact with the inner peripheral surface of the female expansion port (112a); the male expansion port valve (13b) comprises a male one-way valve stem (131b) coaxially mounted in the male expansion port (112b), and a male one-way valve spring (132b) and a male one-way valve sealing ring (133b) sleeved on the male one-way valve stem (131b); the male one-way valve sealing ring (133b) is in sealing contact with the inner peripheral surface of the male expansion port (112b); and / or A first connection structure is provided on the side wall of the annular extension portion (110) where the female expansion port (112a) is located, and a second connection structure adapted to the first connection structure is provided on the side wall of the annular extension portion (110) where the male expansion port (112b) is located.

10. The oxygen cylinder according to claim 9, characterized in that: The oxygen cylinder further includes a fixing structure for fixing the first connecting structure and the second connecting structure.

11. The oxygen cylinder according to claim 10, characterized in that: The first connection structure comprises two connection holes (113) respectively arranged on both sides of the female expansion port (112a); the second connection structure comprises two connection columns (114) respectively arranged on both sides of the male expansion port (112b); the two connection columns (114) are adapted to correspond to the two connection holes (113); the fixing structure comprises two fixing holes (115) and two fixing screws (14); the two fixing holes (115) correspond to the two connection holes (113); the fixing holes (115) extend along the radial direction of the corresponding connection holes (113) and are connected to the connection holes (113); the fixing screws (14) can be inserted into the fixing holes (115) and connected to the connection columns (114) inserted into the corresponding connection holes (113).

12. The oxygen cylinder according to claim 6, characterized in that: The bottle body (11) has an air outlet (111) and an expansion port (112); the air outlet (111) is located at the top or bottom of the bottle body (11); and the expansion port (112) is located at the top or bottom of the bottle body (11).

13. The oxygen cylinder according to any one of claims 6 to 12, characterized in that: The gas outlet valve (12) and the expansion port valve (13) can also be connected by cooperating with the intermediate connecting piece (30).

14. The oxygen cylinder according to claim 13, characterized in that: The intermediate connecting piece (30) comprises a connecting conduit (31), and both ends of the connecting conduit (31) are respectively formed as quick-plug interfaces (311), and the quick-plug interfaces (311) can be inserted into the air outlet (111) or the expansion port (112) to open the air outlet valve (12) or the expansion port valve (13).

15. The oxygen cylinder according to claim 14, characterized in that: The intermediate connecting piece (30) further comprises a connecting switch (32) arranged on the connecting conduit (31) and used for controlling the opening and closing of the connecting conduit (31).

16. An oxygen breathing apparatus, characterized in that: The invention comprises an oxygen supply valve (20) and an oxygen cylinder (10) according to any one of claims 1 to 15.

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