Adapter and oxygen generator

Abstract

The utility model relates to the technical field of oxygen generators, in particular to an adapter and an oxygen generator. The adapter comprises a shell, a one-way valve and a reset assembly, a first air inlet, a first air outlet, a second air inlet, a second air outlet and an oxygen interface are formed in the shell, the first air inlet, the first air outlet and the oxygen interface form a first conveying channel, and the second air inlet, the second air outlet and the oxygen interface form a second conveying channel; the one-way valve is arranged in the shell, movably attached to the first air outlet and the second air outlet and used for controlling the first air outlet or the second air outlet to be opened so that first oxygen of the first air inlet can be output along the first conveying channel, or second oxygen of the second air inlet can be output along the second conveying channel. The reset assembly is arranged in the shell and used for controlling the one-way valve to reset so that the first air outlet or the second air outlet can be closed. By means of the arrangement, oxygen backflow can be prevented, and the working efficiency of the oxygen generator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrators, in particular to an adapter and an oxygen concentrator. Background Art

[0002] When the current molecular sieve oxygen generator produces high-concentration oxygen, two adsorption barrels usually cooperate with each other to work alternately to achieve continuous oxygen production. During the above oxygen production process, the compressed gas is separated into oxygen and nitrogen in the adsorption barrel, and the oxygen and nitrogen are discharged from the corresponding gas ports at both ends of the adsorption barrel. Specifically, one of the adsorption barrels works to produce oxygen, while the other adsorption barrel discharges nitrogen. The oxygen from the oxygen outlets of the above two adsorption barrels is alternately transported to the gas storage tank for storage through the adapter. During the use of the above adapter, the oxygen output from one adsorption barrel will flow back to the other adsorption barrel along the adapter, thereby reducing the oxygen production efficiency of the molecular sieve oxygen generator. Utility Model Content

[0003] The technical problem to be solved by the embodiments of the utility model is to provide an adapter and an oxygen generator to solve the problem in the prior art that the oxygen output from one adsorption barrel will flow back into another adsorption barrel along the adapter, thereby reducing the oxygen production efficiency of the molecular sieve oxygen generator.

[0004] The utility model discloses an adapter, comprising: a shell, a one-way valve and a reset component, wherein a first air inlet, a first air outlet, a second air inlet, a second air outlet and an oxygen interface are formed on the shell, wherein the first air inlet, the first air outlet and the oxygen interface form a first delivery channel, and the second air inlet, the second air outlet and the oxygen interface form a second delivery channel; a one-way valve is arranged in the shell, and the one-way valve can be movably attached to the first air outlet and the second air outlet, and is used to control the first air outlet or the second air outlet to open, so that the first oxygen of the first air inlet is output along the first delivery channel, or the second oxygen of the second air inlet is output along the second delivery channel; a reset component is arranged in the shell, and the reset component is used to control the one-way valve to reset, so that the first air outlet or the second air outlet is closed.

[0005] Optionally, the shell includes a first body and a second body that are sealed and connected, the first air inlet, the first air outlet, the second air inlet, and the second air outlet are located on the first body, the oxygen interface is located on the second body, and the one-way valve is located between the first body and the second body.

[0006] Optionally, the second body forms an open accommodating cavity, and the oxygen interface is connected to the accommodating cavity; an annular protrusion is provided on the second body along the circumference of the opening, and an annular groove is formed at one end of the first body close to the second body, and the annular protrusion is inserted into the annular groove to seal the first body and the second body; the one-way valve and the reset assembly are both located in the accommodating cavity.

[0007] Optionally, the one-way valve includes a first valve plate, a fixed part, and a second valve plate connected in sequence, the fixed part is arranged on the first body, the first valve plate can be movably attached to the first air outlet, and the second valve plate can be movably attached to the second air outlet; the reset assembly includes a first elastic member and a second elastic member, one end of the first elastic member is arranged on the inner wall of the second body, and the other end abuts against the first valve plate, and one end of the second elastic member is arranged on the inner wall of the second body, and the other end abuts against the second valve plate.

[0008] Optionally, a mounting platform is provided on the first body, a mounting hole is formed on the fixing portion, and the fixing portion is sleeved on the mounting platform through the mounting hole.

[0009] Optionally, the first valve plate and the second valve plate are symmetrically arranged.

[0010] Optionally, a first limiting protrusion, a second limiting protrusion and a third limiting protrusion are further provided on the first body, the first valve plate is located between the first limiting protrusion and the second limiting protrusion, and the second valve plate is located between the second limiting protrusion and the third limiting protrusion.

[0011] Optionally, a first positioning column and a second positioning column are further provided at one end of the second body close to the oxygen interface, the first positioning column is arranged opposite to the first valve plate, the second positioning column is arranged opposite to the second valve plate, one end of the first elastic member is sleeved on the first positioning column, and the other end is abutted against the first valve plate, and one end of the second elastic member is sleeved on the second positioning column, and the other end is abutted against the second valve plate.

[0012] Optionally, both the first elastic member and the second elastic member are springs.

[0013] The utility model also discloses an oxygen concentrator, comprising a first adsorption barrel, a second adsorption barrel, a gas storage tank and the adapter mentioned above, wherein the first air inlet of the adapter is connected to the oxygen outlet of the first adsorption barrel, the second air inlet of the adapter is connected to the oxygen outlet of the second adsorption barrel, and the oxygen interface of the adapter is connected to the gas storage tank.

[0014] Compared with the prior art, the adapter and oxygen concentrator provided by the embodiment of the utility model have the following beneficial effects:

[0015] During use of the adapter, the first air inlet of the shell is connected to the oxygen outlet of the first adsorption barrel, the second air inlet is connected to the oxygen outlet of the second adsorption barrel, and the oxygen interface is connected to the gas tank; when the first adsorption barrel is producing oxygen, at this time, the second adsorption barrel is discharging nitrogen, and the first adsorption barrel outputs the first oxygen. During the transportation process, the first oxygen flows along the first air inlet into the first transportation channel, impacts the one-way valve attached to the first air outlet, and is separated from the first air outlet. The first air outlet is opened to allow the first oxygen to be transported along the first transportation channel to the gas tank; when the second adsorption barrel is producing oxygen, at this time, the first adsorption barrel is discharging nitrogen, the airflow at the first air inlet disappears, and the second adsorption barrel outputs The second oxygen, during the delivery process, the second oxygen flows along the second air inlet into the second delivery channel, impacts the one-way valve attached to the second air outlet, and is separated from the second air outlet. The second air outlet is opened to allow the second oxygen to be delivered to the gas storage tank along the second delivery channel; the reset component is set to control the second air outlet to be closed during the opening of the above-mentioned first air outlet to prevent the gas output through the first air outlet from flowing back into the second gas storage tank through the second air outlet; or, during the opening of the above-mentioned second air outlet, control the first air outlet to be closed to prevent the gas output through the second air outlet from flowing back into the second gas storage tank through the first air outlet, thereby improving the working efficiency of the oxygen concentrator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 It is a schematic diagram of the overall structure of the adapter provided by the embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the first body provided by an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the second body provided by an embodiment of the utility model;

[0020] Figure 4 is a side view of the second body provided by an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the connection structure between the first body and the one-way valve provided in an embodiment of the utility model;

[0022] Figure 6 It is a structural schematic diagram of a one-way valve provided in an embodiment of the utility model.

[0023] The reference numerals in the figures are:

[0024] 10. Shell; 110. First body; 111. Annular groove; 112. Mounting platform; 113. First limiting protrusion; 114. Second limiting protrusion; 115. Third limiting protrusion; 1101. First air inlet; 1102. First air outlet; 1103. Second air inlet; 1104. Second air outlet; 120. Second body; 1201. Oxygen interface; 1202. Opening; 1203. Accommodating cavity; 121. Annular protrusion; 122. First positioning column; 123. Second positioning column; 124. Positioning sleeve; 20. One-way valve; 210. First valve plate; 220. Fixing portion; 2201. Mounting hole; 230. Second valve plate; 310. First elastic member; 320. Second elastic member. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0026] The utility model embodiment provides a conversion joint, such as Figure 1 and Figure 2 As shown, it includes a housing 10, a one-way valve 20 and a reset assembly. The housing 10 is formed with a first air inlet 1101, a first air outlet 1102, a second air inlet 1103, a second air outlet 1104 and an oxygen interface 1201. The first air inlet 1101, the first air outlet 1102 and the oxygen interface 1201 form a first delivery channel, and the second air inlet 1103, the second air outlet 1104 and the oxygen interface 1201 form a second delivery channel; the one-way valve 20 is disposed on the housing 10 Inside, the one-way valve 20 can be movably attached to the first air outlet 1102 and the second air outlet 1104, and is used to control the opening of the first air outlet 1102 or the second air outlet 1104, so that the first oxygen from the first air inlet 1101 is output along the first delivery channel, or the second oxygen from the second air inlet 1103 is output along the second delivery channel; a reset component is arranged in the shell 10, and the reset component is used to control the reset of the one-way valve 20 to close the first air outlet 1102 or the second air outlet 1104.

[0027] During use of the adapter, the first air inlet 1101 of the shell 10 is connected to the oxygen outlet of the first adsorption barrel (not shown in the figure), the second air inlet 1103 is connected to the oxygen outlet of the second adsorption barrel (not shown in the figure), and the oxygen interface 1201 is connected to the gas tank; when the first adsorption barrel is producing oxygen, at this time, the second adsorption barrel is discharging nitrogen, and the first adsorption barrel outputs the first oxygen. During the transportation process, the first oxygen flows along the first air inlet 1101 into the first transportation channel and impacts the one-way valve 20 attached to the first air outlet 1102 to separate from the first air outlet 1102, and the first air outlet 1102 is opened to allow the first oxygen to be transported along the first transportation channel to the gas tank; when the second adsorption barrel is producing oxygen, at this time, the first adsorption barrel is discharging nitrogen, the airflow at the first air inlet 1101 disappears, and the second adsorption barrel outputs the first oxygen. The second oxygen, during the transportation process, the second oxygen flows along the second air inlet 1103 into the second transportation channel, impacts the one-way valve 20 attached to the second air outlet 1104, and is separated from the second air outlet 1104. The second air outlet 1104 is opened to allow the second oxygen to be transported to the gas storage tank along the second transportation channel; the reset component is set to control the second air outlet 1104 to be closed during the opening of the above-mentioned first air outlet 1102, so as to prevent the gas output through the first air outlet 1102 from flowing back into the second air storage tank through the second air outlet 1104; or, during the opening of the above-mentioned second air outlet 1104, control the first air outlet 1102 to be closed, so as to prevent the gas output through the second air outlet 1104 from flowing back into the second air storage tank through the first air outlet 1102, thereby improving the working efficiency of the oxygen concentrator.

[0028] The first adsorption barrel and the second adsorption barrel are filled with molecular sieves, and the principle of obtaining high-purity oxygen adopts existing means, which will not be described in detail here. The oxygen outlet and nitrogen outlet of the adsorption barrel are generally located at opposite ends of the adsorption barrel.

[0029] As a preferred solution of this embodiment, refer to Figure 1 The shell 10 includes a first body 110 and a second body 120 that are sealed and connected. The first air inlet 1101, the first air outlet 1102, the second air inlet 1103, and the second air outlet 1104 are located on the first body 110, the oxygen interface 1201 is located on the second body 120, and the one-way valve 20 is located between the first body 110 and the second body 120.

[0030] The housing 10 is composed of a first body 110 and a second body 120 which are sealed and connected, so as to facilitate the installation, use and maintenance of the adapter.

[0031] As a preferred solution of this embodiment, refer to Figure 3 and Figure 4The second body 120 forms a receiving cavity 1203 having an opening 1202, and the oxygen interface 1201 is communicated with the receiving cavity 1203; an annular protrusion 121 is provided on the second body 120 along the circumference of the opening 1202, and an annular groove 111 is formed at one end of the first body 110 close to the second body 120, and the annular protrusion 121 is inserted into the annular groove 111, so that the first body 110 and the second body 120 are sealed and connected; the one-way valve 20 and the reset assembly are both located in the receiving cavity 1203.

[0032] Among them, the setting of the above-mentioned accommodating cavity 1203 provides an installation environment for the one-way valve 20 and the reset assembly. The cooperation of the annular protrusion 121 and the annular groove 111 realizes the connection between the first body 110 and the second body 120. The connection is tight and easy to install and disassemble. During use of the adapter of this embodiment, the first oxygen through the first air inlet 1101 enters the accommodating cavity 1203 through the first air outlet 1102, and then is output to the gas storage tank along the oxygen interface 1201. The second oxygen through the second air inlet 1103 enters the accommodating cavity 1203 through the second air outlet 1104, and then is output to the gas storage tank along the oxygen interface 1201.

[0033] As a preferred solution of this embodiment, refer to Figure 2 , Figure 5 and Figure 6 The one-way valve 20 includes a first valve disc 210, a fixing portion 220 and a second valve disc 230 connected in sequence, the fixing portion 220 is arranged on the first body 110, the first valve disc 210 is movably attached to the first air outlet 1102, and the second valve disc 230 is movably attached to the second air outlet 1104; the reset component includes a first elastic member 310 and a second elastic member 320, one end of the first elastic member 310 is arranged on the inner wall of the second body 120, and the other end abuts against the first valve disc 210, one end of the second elastic member 320 is arranged on the inner wall of the second body 120, and the other end abuts against the second valve disc 230.

[0034] Among them, a structural composition of a one-way valve 20 is provided here. Specifically, the one-way valve 20 includes a first valve plate 210, a fixing portion 220 and a second valve plate 230 which are connected in sequence. The fixing portion 220 is used to connect the one-way valve 20 to the first body 110 to ensure the stability of the one-way valve 20 in the first body 110. The first valve plate 210 is movably attached to the first air outlet 1102. During the transportation of the first oxygen, the airflow enters the first transportation channel along the first air inlet 1101 and impacts the first valve plate 210 attached to the first air outlet 1102 to separate from the first air outlet 1102, thereby achieving the purpose of opening the first air outlet 1102; the second valve plate 230 is movably attached to the second air outlet 1104. During the transportation of the second oxygen, the airflow enters the second transportation channel along the second air inlet 1103 and impacts the second valve plate 230 attached to the second air outlet 1104 to separate from the second air outlet 1104, thereby achieving the purpose of opening the second air outlet 1104. ; A structural composition of a reset component is also provided herein, specifically, the reset component includes a first elastic member 310 and a second elastic member 320, one end of the first elastic member 310 is arranged on the inner wall of the second body 120, and the other end is in contact with the first valve plate 210. During the opening of the first air outlet 1102, the first valve plate 210 squeezes the first elastic member 310 to cause elastic deformation. When the airflow at the first air inlet 1101 disappears, the first elastic member 310 pushes the first valve plate 210 to reset and close the first air inlet 1101 under the action of the elastic restoring force; one end of the second elastic member 320 is arranged on the inner wall of the second body 120, and the other end is in contact with the second valve plate 230. During the opening of the second air outlet 1104, the second valve plate 230 squeezes the second elastic member 320 to cause elastic deformation. When the airflow at the second air inlet 1103 disappears, the second elastic member 320 pushes the first valve plate 210 to reset and close the first air inlet 1101 under the action of the elastic restoring force.

[0035] The structures of the one-way valve 20 and the reset assembly achieve the purpose of alternately opening and closing the first air outlet 1102 and the second air outlet 1104 .

[0036] As a preferred solution of this embodiment, refer to Figure 2 , Figure 5 and Figure 6 A mounting platform 112 is provided on the first body 110, a mounting hole 2201 is formed on the fixing portion 220, and the fixing portion 220 is sleeved on the mounting platform 112 through the mounting hole 2201; a positioning sleeve is provided at one end of the second body 120 close to the oxygen interface 1201, and the positioning sleeve is sleeved on the mounting platform 112 and abuts against the fixing portion 220.

[0037] Among them, the mounting platform 112 arranged on the first body 110 provides a mounting position for the fixing part 220, and the fixing part 220 is sleeved on the mounting platform 112 through the mounting hole 2201. While the one-way valve 20 is stably installed on the first body 110, the first valve plate 210 and the second valve plate 230 can be flatly attached to the first air outlet 1102 and the second air outlet 1104 respectively, so as to ensure the airtightness of the one-way valve 20 when it is installed, and can further prevent the phenomenon of oxygen backflow, thereby further improving the oxygen production efficiency of the oxygen generator.

[0038] As a preferred solution of this embodiment, refer to Figure 6 The first valve disc 210 and the second valve disc 230 are symmetrically arranged.

[0039] Among them, the first valve plate 210 and the second valve plate 230 in the above-mentioned one-way valve 20 are symmetrically arranged, which can prevent the staff from installing the one-way valve 20 upside down when assembling and repairing the one-way valve 20, affecting its normal use, thereby improving the convenience of installation and use and the working efficiency of the oxygen concentrator.

[0040] As a preferred solution of this embodiment, refer to Figure 2 The first body 110 is also provided with a first limiting protrusion 113, a second limiting protrusion 114 and a third limiting protrusion 115, the first valve plate 210 is located between the first limiting protrusion 113 and the second limiting protrusion 114, and the second valve plate 230 is located between the second limiting protrusion 114 and the third limiting protrusion 115.

[0041] Among them, the cooperation of the above-mentioned first limiting protrusion 113 and the second limiting protrusion 114 provides a stable setting environment for the first valve plate 210. When the air flow rate passing through the first air inlet 1101 is large, during the opening process of the first air outlet 1102, it can prevent the first valve plate 210 from being separated from the first air inlet 1101 by a large distance and unable to be reset, or the first valve plate 210 cannot be attached to the first air outlet 1102 after resetting; the cooperation of the above-mentioned third limiting protrusion 115 and the second limiting protrusion 114 provides a stable setting environment for the second valve plate 230. When the air flow rate passing through the second air inlet 1103 is large, during the opening process of the second air outlet 1104, it can prevent the second valve plate 230 from being separated from the second air inlet 1103 by a large distance and unable to be reset, or the second valve plate 230 cannot be attached to the second air outlet 1104 after resetting.

[0042] As a preferred solution of this embodiment, refer to Figure 3A first positioning column 122 and a second positioning column 123 are further provided at one end of the second body 120 near the oxygen interface 1201. The first positioning column 122 is arranged opposite to the first valve plate 210, and the second positioning column 123 is arranged opposite to the second valve plate 230. One end of the first elastic member 310 is sleeved on the first positioning column 122, and the other end is abutted against the first valve plate 210. One end of the second elastic member 320 is sleeved on the second positioning column 123, and the other end is abutted against the second valve plate 230.

[0043] Among them, the setting of the first positioning column 122 and the second positioning column 123 is used to provide a stable installation environment for the first elastic member 310 and the second elastic member 320, and improve the installation strength of the first elastic member 310 and the second elastic member 320 on the second body 120. The first elastic member 310 is sleeved on the first positioning column 122 so that the first elastic member 310 can be elastically deformed along the extension direction of the first positioning column 122. One end of the second elastic member 320 is sleeved on the second positioning column 123 so that the second elastic member 320 can be elastically deformed along the extension direction of the second positioning column 123, thereby improving the working stability of the first elastic member 310 and the second elastic member 320.

[0044] As a preferred solution of this embodiment, refer to Figure 3 , the first elastic member 310 and the second elastic member 320 are both springs.

[0045] The spring is a common elastic part with good elastic deformation and recovery capabilities, high fatigue resistance, and is not easily deformed or damaged after long-term use, so as to adapt to the process of alternating oxygen production between the first adsorption barrel and the second adsorption barrel.

[0046] This embodiment also discloses an oxygen concentrator, including a first adsorption barrel (not shown in the figure), a second adsorption barrel (not shown in the figure), a gas storage tank (not shown in the figure) and an adapter of the above embodiment, wherein the first air inlet 1101 of the adapter is connected to the oxygen outlet of the first adsorption barrel, the second air inlet 1103 of the adapter is connected to the oxygen outlet of the second adsorption barrel, and the oxygen interface 1201 of the adapter is connected to the gas storage tank. The oxygen concentrator includes the same structure and beneficial effects as the adapter in the above embodiment. The structure and beneficial effects of the adapter have been described in detail in the above embodiment and will not be repeated here.

[0047] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. An adapter, characterized in that: include: A shell, wherein a first air inlet, a first air outlet, a second air inlet, a second air outlet and an oxygen interface are formed on the shell, wherein the first air inlet, the first air outlet and the oxygen interface form a first delivery channel, and the second air inlet, the second air outlet and the oxygen interface form a second delivery channel; a one-way valve, disposed in the housing, the one-way valve being movably attached to the first air outlet and the second air outlet, and being used to control the first air outlet or the second air outlet to be opened, so that the first oxygen from the first air inlet is output along the first delivery channel, or the second oxygen from the second air inlet is output along the second delivery channel; A reset component is disposed in the housing, and is used to control the one-way valve to reset so that the first air outlet or the second air outlet is closed.

2. The adapter according to claim 1, characterized in that: The shell comprises a first body and a second body which are sealed and connected, the first air inlet, the first air outlet, the second air inlet and the second air outlet are located on the first body, the oxygen interface is located on the second body, and the one-way valve is located between the first body and the second body.

3. The adapter according to claim 2, characterized in that: The second body is formed with an open accommodating cavity, and the oxygen interface is in communication with the accommodating cavity; An annular protrusion is provided on the second body along the circumference of the opening, and an annular groove is formed at one end of the first body close to the second body. The annular protrusion is inserted into the annular groove to seal the first body and the second body. The one-way valve and the reset assembly are both located in the accommodating cavity.

4. The adapter according to claim 2, characterized in that: The one-way valve comprises a first valve plate, a fixing portion and a second valve plate which are connected in sequence, the fixing portion is arranged on the first body, the first valve plate is movably attached to the first air outlet, and the second valve plate is movably attached to the second air outlet; The reset assembly includes a first elastic member and a second elastic member, one end of the first elastic member is arranged on the inner wall of the second body, and the other end abuts against the first valve plate, and one end of the second elastic member is arranged on the inner wall of the second body, and the other end abuts against the second valve plate.

5. The adapter according to claim 4, characterized in that: A mounting platform is provided on the first body, a mounting hole is formed on the fixing portion, and the fixing portion is sleeved on the mounting platform through the mounting hole; a positioning sleeve is provided at one end of the second body close to the oxygen interface, and the positioning sleeve is sleeved on the mounting platform and abuts against the fixing portion.

6. The adapter according to claim 4, characterized in that: The first valve plate and the second valve plate are symmetrically arranged.

7. The adapter according to claim 4, characterized in that: The first body is also provided with a first limiting protrusion, a second limiting protrusion and a third limiting protrusion, the first valve plate is located between the first limiting protrusion and the second limiting protrusion, and the second valve plate is located between the second limiting protrusion and the third limiting protrusion.

8. The adapter according to claim 4, characterized in that: A first positioning post and a second positioning post are further provided at one end of the second body close to the oxygen interface, the first positioning post is arranged opposite to the first valve plate, the second positioning post is arranged opposite to the second valve plate, one end of the first elastic member is sleeved on the first positioning post, and the other end is abutted against the first valve plate, one end of the second elastic member is sleeved on the second positioning post, and the other end is abutted against the second valve plate.

9. The adapter according to claim 4, characterized in that: The first elastic member and the second elastic member are both springs.

10. An oxygen concentrator, characterized in that: It comprises a first adsorption barrel, a second adsorption barrel, a gas storage tank and the adapter according to any one of claims 1 to 9, wherein the first air inlet of the adapter is connected to the oxygen outlet of the first adsorption barrel, the second air inlet of the adapter is connected to the oxygen outlet of the second adsorption barrel, and the oxygen interface of the adapter is connected to the gas storage tank.

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