Novel oxygen generator pressure stabilizing valve

Abstract

The utility model discloses a novel oxygen generator pressure stabilizing valve which is mainly technically characterized in that a rectifying component with a small hole is arranged inside an exhaust port of the oxygen generator pressure stabilizing valve in an interference fit mode, and the diameter of the small hole of the rectifying component is 1.1 mm or 1.6 mm. The oxygen generator pressure stabilizing valve has the advantages that when the oxygen generator pressure stabilizing valve with the rectifying component is installed on a VPSA oxygen generator to be used, when the diameter of the small hole of the rectifying component is 1.1 mm or 1.6 mm, gas in the oxygen generator pressure stabilizing valve is exhausted through the exhaust connector after being dredged by the rectifying component, the precision error of the exhausted gas pressure stabilizing valve reaches + / -0.001 Mpa, and the precision error is + / -0.1 L when the flow is 5L, so that the oxygen generator pressure stabilizing valve with the rectifying component is suitable for being used in the VPSA oxygen generator. And the user can obtain more relaxed and stable oxygen supply. When the oxygen generator pressure stabilizing valve with the rectifying component is applied to a common PSA oxygen generator, the gas output precision of the PSA oxygen generator is also improved, and a patient can obtain comfortable oxygen uptake.

Description

Technical Field

[0001] The utility model relates to a pressure stabilizing valve, in particular to a novel pressure stabilizing valve for an oxygen concentrator. Background Art

[0002] VPSA oxygen concentrator, its system pressure range is 0.05 to 0.11Mpa, the outlet pressure must ensure the accuracy error is ±0.002MPa at 0.04Mpa. The flow accuracy error of the pressure regulating valve is ±0.002Mpa, and the flow accuracy error is ±0.2L / min at 5L.

[0003] For conventional PSA oxygen concentrators, the system pressure is between 0.08-0.15 MPa, the outlet pressure is ±0.05 MPa, and the flow rate accuracy is ±10%. By using a conventional oxygen concentrator pressure regulator with an accuracy of ±0.01 MPa, this ±10% accuracy at a flow rate of 5 L can be easily achieved. However, due to the low accuracy range of this conventional oxygen concentrator pressure regulator, it cannot be used on VPSA oxygen concentrators. Utility Model Content

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a novel oxygen concentrator pressure stabilizing valve, which is used to implement the use of a conventional pressure stabilizing valve on a VPSA oxygen concentrator.

[0005] In order to overcome the above technical problems, the technical solution adopted by the present invention is:

[0006] A novel oxygen concentrator pressure-stabilizing valve is provided, characterized in that a rectifying component with a small hole is arranged inside the exhaust interface of the oxygen concentrator pressure-stabilizing valve through interference fit, and the diameter of the small hole of the rectifying component is 1.1 mm or 1.6 mm.

[0007] The two ends of the small hole diameter of the rectifying component are tapered holes.

[0008] The small-diameter hole ends of the tapered hole are respectively connected to the small holes, and the large-diameter hole ends of the tapered hole respectively pass through the two ends of the rectifying component.

[0009] The center lines of the small holes and the tapered holes of the rectifying component are concentric with the center line of the exhaust interface of the oxygen concentrator pressure regulating valve.

[0010] Furthermore, it also includes a countersunk hole arranged at the center line of the rectification component, the center lines of the small hole and the tapered hole are parallel to the center line of the countersunk hole, and the large diameter end of the countersunk hole is connected to one end of the rectification component.

[0011] The small diameter hole ends of the tapered holes are respectively connected to the small holes, one end of the large diameter hole of the tapered hole passes through the end surface of the rectifying component, and the other end of the large diameter hole of the tapered hole passes through the large diameter end of the countersunk hole.

[0012] A plurality of toothed rings are evenly distributed on the outer diameter of the rectifying component.

[0013] The beneficial effect of the utility model is that when the oxygen concentrator pressure-stabilizing valve with a rectifying component is installed in a VPSA oxygen concentrator for use, when the diameter of the small hole of the rectifying component is 1.1 mm or 1.6 mm, the gas in the oxygen concentrator pressure-stabilizing valve is discharged from the exhaust interface after being guided by the rectifying component. At this time, the accuracy of the discharged gas pressure-stabilizing valve reaches an error of ±0.001Mpa, and the accuracy error is ±0.1L when the flow rate is 5L. Therefore, the user can obtain a more relaxed and stable oxygen supply.

[0014] When the oxygen concentrator pressure regulating valve with a rectifying component is applied to a general PSA oxygen concentrator, the gas output accuracy of the PSA oxygen concentrator is also improved, which is beneficial for patients to obtain comfortable oxygen inhalation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 The utility model is a structural schematic diagram of a novel oxygen concentrator pressure stabilizing valve.

[0017] Figure 2 yes Figure 1 The figure shows a partial enlarged view of area A.

[0018] Figure 3 It is a structural diagram of Example 1.

[0019] Figure 4 It is a structural diagram of Example 2.

[0020] Description of Reference Numerals

[0021] 1- oxygen concentrator pressure regulating valve; 2- exhaust port; 3- rectifying component; 301- small hole; 302- small hole; 303- countersunk hole; 304- toothed ring; DETAILED DESCRIPTION

[0022] Example 1

[0023] As a more preferred embodiment, Figure 1-2As shown, a novel oxygen concentrator pressure-stabilizing valve is provided. A rectifying component 3 with a small hole 301 is interference-fittedly arranged inside the exhaust port 2 of the oxygen concentrator pressure-stabilizing valve 1. When the oxygen concentrator pressure-stabilizing valve 1 with the rectifying component 3 is installed in a VPSA oxygen concentrator for use, when the diameter of the small hole 301 of the rectifying component 3 is 1.1 mm or 1.6 mm, the gas in the oxygen concentrator pressure-stabilizing valve 1 is guided by the rectifying component 3 and discharged from the exhaust port 2. At this time, the discharged gas pressure-stabilizing valve has an accuracy of ±0.001 MPa, and the accuracy error is ±0.1 L when the flow rate is 5 L. Therefore, the user can enjoy a more comfortable and stable oxygen supply.

[0024] When the diameter of the small hole 301 is 1.1 mm, an output of 0-5 L / min is achieved;

[0025] When the diameter of the small hole 301 is 1.6 mm, an output of 5-7 L / min is achieved;

[0026] In this embodiment, the small hole 301 of the rectifying member 3 has tapered holes 302 at both ends. The small-diameter ends of the tapered holes 302 are connected to the small hole 301, while the large-diameter ends of the tapered holes 302 pass through both ends of the rectifying member 3. The centerline of the small hole 301 and the tapered hole 302 of the rectifying member 3 is concentric with the centerline of the exhaust port 2 of the oxygen concentrator pressure regulating valve 1. The tapered holes 302 effectively collect gas and evenly disperse it for discharge.

[0027] More preferably, a plurality of toothed rings 304 are evenly distributed on the outer diameter of the rectifying component 3. After the spike portion of the toothed ring 304 is installed inside the exhaust interface 2 through interference fit, a line contact mode is formed between the spike portion and the exhaust interface 2. That is to say, the area of ​​the interference fit is reduced by the line contact between the spike portion and the exhaust interface 2, thereby facilitating disassembly and replacement.

[0028] In addition, in some other embodiments, the outer diameter of the rectifying component 3 is smooth, and the outer diameter of the rectifying component 3 is entirely connected with the inside of the exhaust port 2 by interference fit, which is not conducive to the disassembly of the rectifying component 3.

[0029] Example 2

[0030] In this embodiment, Figure 3As shown, it also includes a countersunk hole 303 set at the center line of the rectifying component 3, the center lines of the small hole 301 and the tapered hole 302 are parallel to the center line of the countersunk hole 303, the large diameter end of the countersunk hole 303 passes through one end of the rectifying component 3, and the small diameter hole ends of the tapered hole 302 are respectively connected to the small holes 301, one end of the large diameter hole of the tapered hole 302 passes through the end face of the rectifying component 3, and the other end of the large diameter hole of the tapered hole 302 passes through the large diameter end of the countersunk hole 303. When the gas in the oxygen concentrator pressure regulating valve 1 passes through the rectifying component 3, the gas is muffled and refined by the small diameter hole of the countersunk hole 303 and then returns, and passes through the large diameter end of the countersunk hole 303 to the large diameter hole of the tapered hole 302 for gathering, rectification of the small diameter hole 301, and then discharged from the tapered hole 302, and then the output of the gas after muffled and refined is realized through the countersunk hole 303. The rest is the same as the embodiment.

[0031] In addition, when Example 1 and Example 2 are respectively applied to a general PSA oxygen concentrator, the gas output accuracy of the PSA oxygen concentrator is also improved, which is beneficial for patients to obtain comfortable oxygen inhalation.

[0032] The present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A new type of oxygen concentrator pressure regulating valve, characterized by: A rectifying component (3) with a small hole (301) is arranged inside the exhaust port (2) of the oxygen concentrator pressure regulating valve (1) through interference fit, The diameter of the small hole (301) of the rectifying component (3) is 1.1 mm or 1.6 mm.

2. A novel oxygen concentrator pressure-stabilizing valve according to claim 1, characterized in that: The small hole (301) of the rectifying component (3) has tapered holes (302) at both ends of its diameter.

3. A novel oxygen concentrator pressure-stabilizing valve according to claim 2, characterized in that: The small-diameter hole ends of the tapered hole (302) are respectively connected to the small hole (301), and the large-diameter hole ends of the tapered hole (302) respectively penetrate the two ends of the rectifying component (3).

4. A novel oxygen concentrator pressure-stabilizing valve according to claim 2, characterized in that: The center lines of the small hole (301) and the tapered hole (302) of the rectifying component (3) are concentric with the center line of the exhaust port (2) of the oxygen concentrator pressure regulating valve (1).

5. The novel oxygen concentrator pressure-stabilizing valve according to claim 2 is characterized in that: It also includes a countersunk hole (303) arranged at the center line of the rectifying component (3), the center lines of the small hole (301) and the tapered hole (302) are parallel to the center line of the countersunk hole (303), and the large diameter end of the countersunk hole (303) is connected to one end of the rectifying component (3).

6. A novel oxygen concentrator pressure-stabilizing valve according to claim 5, characterized in that: The small diameter hole ends of the tapered hole (302) are respectively connected to the small hole (301), one end of the large diameter hole of the tapered hole (302) penetrates the end surface of the rectifying component (3), and the other end of the large diameter hole of the tapered hole (302) penetrates the large diameter end of the countersunk hole (303).

7. A novel oxygen concentrator pressure-stabilizing valve according to any one of claims 1 to 6, characterized in that: The outer diameter of the rectifying component (3) is evenly distributed with a plurality of toothed rings.

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