Special pressure relief device for oxygen generator

Abstract

The utility model discloses a special pressure relief device for an oxygen generator, which comprises the oxygen generator, an air inlet pipe connected onto the oxygen generator, a cover body connected onto the air inlet pipe, a humidifying cup connected onto the bottom end of the cover body, an air outlet pipe connected onto the cover body, an exhaust pipe arranged on the cover body, a first ring groove arranged on the outer wall of the exhaust pipe, a first spring arranged in the first ring groove, and a second ring groove arranged in the first spring. A sleeve is slidably mounted on the outer wall of the exhaust pipe and connected with the first spring, a plurality of balls are movably mounted in the outer wall of the exhaust pipe, a pressure relief pipe is slidably mounted in the exhaust pipe, a second ring groove is formed in the outer wall of the pressure relief pipe, the balls are all located in the second ring groove, and a screw is in internal threaded connection with the top end of the pressure relief pipe. According to the humidifying cup, the exhaust pipe is movably connected with the pressure relief pipe, so that the pressure relief pipe achieves the purpose of connecting and relieving pressure, the purpose of conveniently cleaning scale after the pressure relief pipe is detached is achieved, and pollution of water in the humidifying cup is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrators, in particular to a special pressure relief device for oxygen concentrators. Background Art

[0002] Oxygen concentrators are machines that produce oxygen. Since oxygen and nitrogen are widely used, they are also widely used in the national economy. Its principle is to use air separation technology. First, the air is compressed at a high density, and then the different condensation points of the components in the air are used to separate the gas and liquid at a certain temperature. Then, it is distilled to separate it into oxygen and nitrogen. In general, since it is mostly used to produce oxygen, people are accustomed to calling it an oxygen concentrator. The function and role of an oxygen concentrator is to provide oxygen to users and relieve hypoxia symptoms. For those who have elderly people or people with lung dysfunction at home, it can help replenish oxygen in a timely and effective manner and improve the quality of life.

[0003] The pressure relief device of the oxygen concentrator is usually arranged on the cup cover connected to the humidification cup to prevent the gas supply hose from bending and causing the air pressure inside the humidification cup to increase. However, the existing pressure relief device is usually integrated with the cup cover. When it is exposed to moisture from the humidification cup for a long time, the pressure relief device is prone to scale, which is inconvenient to clean and easily pollutes the water inside the humidification cup. Therefore, a special pressure relief device for oxygen concentrator is needed to meet the demand. Summary of the invention

[0004] The utility model aims to provide a special pressure relief device for an oxygen concentrator to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special pressure relief device for an oxygen concentrator, comprising an oxygen concentrator, an air inlet pipe connected to the oxygen concentrator, a cover body connected to the air inlet pipe, a humidification cup connected to the bottom end of the cover body, an air outlet pipe connected to the cover body, an exhaust pipe arranged on the cover body, a first annular groove arranged on the outer wall of the exhaust pipe, a first spring arranged in the first annular groove, a sleeve slidably mounted on the outer wall of the exhaust pipe, the sleeve being connected to the first spring, and a movably mounted spring arranged in the outer wall of the exhaust pipe. A plurality of balls are installed, a pressure relief pipe is slidably installed in the exhaust pipe, a second annular groove is provided on the outer wall of the pressure relief pipe, and the plurality of balls are located in the second annular groove, a screw is connected to the internal thread of the top end of the pressure relief pipe, a knob is connected to the top end of the screw, a gasket is connected to the bottom end of the screw, a second spring is connected to the bottom end of the gasket, a conical plug is connected to the bottom end of the second spring, a conical hole ring is provided in the exhaust pipe, the conical plug is fitted in the conical hole ring, and a whistle is provided on the outer wall of the pressure relief pipe.

[0006] Preferably, the inner wall specification of the bottom end of the sleeve is the same as the outer wall specification of the exhaust pipe, the inner wall specification of the middle part of the sleeve is the same as the outer wall specification of the first annular groove, and the inner wall specification of the top part of the sleeve is the same as the outer wall specification of the exhaust pipe.

[0007] Preferably, the exhaust pipe has a plurality of ball holes on its outer wall at the first annular groove, the diameter of the ball holes on one side of the exhaust pipe outer wall being the same as the diameter of the ball, and the diameter of the ball holes on the inner wall of the exhaust pipe being slightly smaller than the diameter of the ball.

[0008] Preferably, the cross section of the second annular groove is an equilateral trapezoid.

[0009] Preferably, the outer wall of the bottom end of the pressure relief pipe is tapered.

[0010] Preferably, a threaded hole is provided on the top of the pressure relief pipe, and the screw is threadedly connected in the threaded hole.

[0011] Preferably, anti-slip grooves are provided on the outer walls of the sleeve and the knob.

[0012] The beneficial effects of the utility model are:

[0013] In the utility model, the exhaust pipe and the pressure relief pipe are movably connected, so that the pressure relief pipe can achieve the purpose of connecting and relieving pressure, and the purpose of cleaning scale is convenient after removal, thereby preventing the pollution of the water body in the humidification cup.

[0014] In the utility model, the sleeve is moved to drive the first spring to compress, so that the ball loses the support of the inner wall of the sleeve, the pressure relief pipe is inserted into the exhaust pipe, and the sleeve is loosened to make the first spring rebound, push the sleeve to move, and push the ball into the second annular groove, thereby facilitating the connection and removal between the pressure relief pipe and the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a special pressure relief device for an oxygen concentrator proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a humidifying cup of a special pressure relief device for an oxygen concentrator proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the side cross-sectional structure of an outlet pipe of a special pressure relief device for an oxygen concentrator proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the side cross-sectional structure of an intake pipe of a special pressure relief device for an oxygen concentrator proposed by the utility model;

[0019] Figure 5 The utility model provides a special pressure relief device for oxygen concentrator Figure 4Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. oxygen generator; 2. air inlet pipe; 3. cover body; 4. humidification cup; 5. air outlet pipe; 6. exhaust pipe; 7. first ring groove; 8. first spring; 9. sleeve; 10. ball; 11. pressure relief pipe; 12. second ring groove; 13. screw; 14. knob; 15. gasket; 16. second spring; 17. tapered plug; 18. tapered hole ring; 19. whistle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5 A pressure relief device for an oxygen concentrator comprises an oxygen concentrator 1, an air inlet pipe 2 is connected to the oxygen concentrator 1, a cover body 3 is connected to the air inlet pipe 2, a humidification cup 4 is connected to the bottom end of the cover body 3, an air outlet pipe 5 is connected to the cover body 3, an exhaust pipe 6 is arranged on the cover body 3, a first annular groove 7 is provided on the outer wall of the exhaust pipe 6, a first spring 8 is arranged in the first annular groove 7, a sleeve 9 is slidably installed on the outer wall of the exhaust pipe 6, the sleeve 9 is connected to the first spring 8, a plurality of balls 10 are movably installed in the outer wall of the exhaust pipe 6, and a A pressure relief pipe 11, a second annular groove 12 is provided on the outer wall of the pressure relief pipe 11, a plurality of balls 10 are located in the second annular groove 12, a screw 13 is connected to the top end of the pressure relief pipe 11 through an internal thread, a knob 14 is connected to the top end of the screw 13, a gasket 15 is connected to the bottom end of the screw 13, a second spring 16 is connected to the bottom end of the gasket 15, a conical plug 17 is connected to the bottom end of the second spring 16, a conical hole ring 18 is provided in the exhaust pipe 6, the conical plug 17 is fitted in the conical hole ring 18, and a whistle 19 is provided on the outer wall of the pressure relief pipe 11.

[0023] When the pressure is released, the air pressure in the humidification cup 4 increases, and the gas expands and acts on the conical plug 17, forcing the conical plug 17 to move upward, so that the second spring 16 is compressed. During the upward movement of the conical plug 17, the air above the conical plug 17 is compressed and discharged from the whistle 19, forming a whistle sound, thereby playing a warning alarm effect. When the height of the conical plug 17 is higher than the whistle 19, the excess gas in the humidification cup 4 is discharged from the whistle 19, thereby achieving the purpose of pressure release;

[0024] When cleaning, pull the sleeve 9 downward, the first spring 8 is compressed, and the inner wall of the sleeve 9 is separated from the ball 10. At this time, the ball 10 can move freely under the action of external force, and the pressure relief pipe 11 is pulled out upward, so that the second annular groove 12 pushes the ball 10 to move outward. At this time, the pressure relief pipe 11 can be completely pulled out of the exhaust pipe 6. After cleaning, press the sleeve 9 again to insert the pressure relief pipe 11 into the exhaust pipe 6. At this time, the tapered plug 17 is inserted into the tapered hole ring 18, and the second spring 16 is partially compressed. When the ball 10 is level with the second annular groove 12, release the sleeve 9, and the inner wall of the sleeve 9 forces the ball 10 to move inward, and the ball 10 enters the second annular groove 12, thereby realizing the installation of the pressure relief pipe 11 after cleaning;

[0025] The knob 14 is turned to make the screw rod 13 drive the gasket 15 to move in the vertical direction, thereby adjusting the deformation of the second spring 16, thereby achieving the pressure adjustment when the humidification cup 4 is depressurized.

[0026] Specifically, in this embodiment, the inner wall specifications of the bottom end of the sleeve 9 are the same as the outer wall specifications of the exhaust pipe 6, the inner wall specifications of the middle part of the sleeve 9 are the same as the outer wall specifications of the first annular groove 7, and the inner wall specifications of the top of the sleeve 9 are the same as the outer wall specifications of the exhaust pipe 6, providing a support part for the compression and rebound of the first spring 8, and providing space for the ball 10 to move outward.

[0027] Specifically, in the present embodiment, a plurality of ball holes are opened on the outer wall of the exhaust pipe 6 at the first annular groove 7. The diameter of the ball hole located on one side of the outer wall of the exhaust pipe 6 is the same as the diameter of the ball 10, and the diameter of the ball hole located on the inner wall of the exhaust pipe 6 is slightly smaller than the diameter of the ball 10, so as to prevent the ball 10 from moving inward and completely separating from the exhaust pipe 6.

[0028] Specifically, in this embodiment, the cross section of the second annular groove 12 is an equilateral trapezoid, and the inclined surface of the second annular groove 12 enables the ball 10 to move outward when the pressure relief tube 11 is pulled out upward.

[0029] Specifically, in this embodiment, the outer wall of the bottom end of the pressure relief pipe 11 is tapered, so that when the pressure relief pipe 11 is inserted, the ball 10 extending out of the exhaust pipe 6 can be pushed outward.

[0030] Specifically, in this embodiment, a threaded hole is opened on the top of the pressure relief pipe 11 , and the screw rod 13 is threadedly connected in the threaded hole, thereby achieving stability of the screw rod 13 on the pressure relief pipe 11 .

[0031] Specifically, in this embodiment, anti-skid grooves are provided on the outer walls of the sleeve 9 and the knob 14 to prevent slipping during use and facilitate use.

[0032] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A pressure relief device for an oxygen concentrator, comprising an oxygen concentrator (1), characterized in that: The oxygen concentrator (1) is connected to an air inlet pipe (2), the air inlet pipe (2) is connected to a cover body (3), the bottom end of the cover body (3) is connected to a humidification cup (4), the cover body (3) is connected to an air outlet pipe (5), an exhaust pipe (6) is arranged on the cover body (3), a first annular groove (7) is provided on the outer wall of the exhaust pipe (6), a first spring (8) is arranged in the first annular groove (7), a sleeve (9) is slidably mounted on the outer wall of the exhaust pipe (6), the sleeve (9) is connected to the first spring (8), a plurality of balls (10) are movably mounted in the outer wall of the exhaust pipe (6), a pressure relief pipe (11) is slidably mounted in the exhaust pipe (6), and the pressure relief pipe (11) A second annular groove (12) is provided on the outer wall of the pressure relief pipe (11), and a plurality of the balls (10) are located in the second annular groove (12). A screw rod (13) is connected to the top end of the pressure relief pipe (11) through an internal thread, a knob (14) is connected to the top end of the screw rod (13), a gasket (15) is connected to the bottom end of the screw rod (13), a second spring (16) is connected to the bottom end of the gasket (15), and a conical plug (17) is connected to the bottom end of the second spring (16). A conical hole ring (18) is provided in the exhaust pipe (6), and the conical plug (17) is fitted in the conical hole ring (18). A whistle (19) is provided on the outer wall of the pressure relief pipe (11).

2. A special pressure relief device for oxygen concentrator according to claim 1, characterized in that: The inner wall specifications of the bottom end of the sleeve (9) are the same as the outer wall specifications of the exhaust pipe (6), the inner wall specifications of the middle part of the sleeve (9) are the same as the outer wall specifications of the first annular groove (7), and the inner wall specifications of the top part of the sleeve (9) are the same as the outer wall specifications of the exhaust pipe (6).

3. A special pressure relief device for oxygen concentrator according to claim 1, characterized in that: A plurality of ball holes are provided on the outer wall of the exhaust pipe (6) at the first annular groove (7); the diameter of the ball hole located on one side of the outer wall of the exhaust pipe (6) is the same as the diameter of the ball (10); and the diameter of the ball hole located on the inner wall of the exhaust pipe (6) is slightly smaller than the diameter of the ball (10).

4. A special pressure relief device for oxygen concentrator according to claim 1, characterized in that: The cross section of the second annular groove (12) is an equilateral trapezoid.

5. The special pressure relief device for oxygen concentrator according to claim 1, characterized in that: The outer wall of the bottom end of the pressure relief pipe (11) is tapered.

6. A special pressure relief device for oxygen concentrator according to claim 1, characterized in that: A threaded hole is provided on the top end of the pressure relief pipe (11), and the screw rod (13) is threadedly connected in the threaded hole.

7. A special pressure relief device for oxygen concentrator according to claim 1, characterized in that: Anti-slip grooves are provided on the outer walls of the sleeve (9) and the knob (14).

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