Oxygen generator electromagnetic valve with adjustable air passage

Abstract

The utility model discloses an oxygen generator solenoid valve with an adjustable air passage, which belongs to the technical field of oxygen generator solenoid valves and comprises a solenoid valve body, an air inlet and an air outlet which are communicated with each other are arranged on two sides of the solenoid valve body, and an upper shell is fixedly mounted and connected on the upper surface of one side, close to the air inlet, of the solenoid valve body. An electromagnet used for adjusting current to control air channel adjustment is fixedly installed on the upper surface of the upper shell, one side of the electromagnet is fixedly connected with a connector used for connecting a wire to conduct circuit communication, and a valve cavity opening attached to the conical top of the conical valve element in a sealed mode is formed in the center of the valve cavity plate in a penetrating mode. A valve rod is fixedly connected to the upper surface of the conical valve element, a movable iron core attracted by the static iron core in an electromagnetic mode is fixedly installed on the surface of one side of the valve rod, a second spring is welded between the valve rod and the inner surface of the upper shell, and a first spring is welded between the transverse sliding plate close to one side of the air inlet and the cavity wall of the sliding cavity on the longer side of the same side. And the use effect of ensuring flexibility and practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves for oxygen concentrators, in particular to a solenoid valve for oxygen concentrators with adjustable airways. Background Art

[0002] An oxygen concentrator is a medical device used to concentrate oxygen from the air and give it to people who need extra oxygen.

[0003] In oxygen concentrators, solenoid valves are usually used in conjunction with other sensors and control systems to ensure the oxygen flow and concentration in oxygen concentrators. Although there are many solenoid valves with different airways to match the airflow on the market, when doctors or patients need to adjust the oxygen concentration or flow, they need to replace the solenoid valve of the corresponding airway model, which is cumbersome to operate and does not meet the flexible and practical medical needs. Utility Model Content

[0004] The utility model aims to provide an oxygen concentrator solenoid valve with adjustable airway, which solves the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an airway-adjustable solenoid valve for an oxygen concentrator, comprising a solenoid valve body, two sides of the solenoid valve body are interconnected and provided with an air inlet and an air outlet, an upper shell is fixedly installed on the upper surface of one side of the solenoid valve body close to the air inlet, an electromagnet for adjusting current to control airway regulation is fixedly installed on the upper surface of the upper shell, a connector for connecting wires for line connection is fixedly connected to one side of the electromagnet, a conical valve core is slidably connected to the solenoid valve body, a valve cavity plate is fixedly installed inside the side of the solenoid valve body close to the air outlet, and a valve cavity opening is opened through the center of the valve cavity plate and is sealed with the conical top of the conical valve core, A valve stem is fixedly connected to the upper surface of the conical valve core, and a through groove for the valve stem to slide is jointly provided between the upper shell body and the solenoid valve body, a static iron core connected to the electromagnet is fixedly installed on the inner surface of one side of the upper shell body, and a moving iron core electromagnetically attracted by the static iron core is fixedly installed on the surface of one side of the valve stem, and a second spring is welded between the valve stem and the inner surface of the upper shell body, and a group of sliding cavities of different lengths are laterally provided inwardly on the inner walls of both sides of the solenoid valve body close to the through groove, and a group of transverse slides are sealed and slidably connected in the two sliding cavities, and the transverse slides are fixedly connected to both sides of the valve stem, and a first spring is welded between the transverse slide close to the air inlet side and the cavity wall of the sliding cavity on the longer side of the same side.

[0006] Optionally, a special-shaped sealing gasket is embedded and installed around the conical top surface of the conical valve core, and the special-shaped sealing gasket is attached to the valve cavity opening.

[0007] Optionally, sealing gaskets are embedded and connected to the upper and lower surfaces of the cross slide plate close to the valve stem.

[0008] Optionally, the upper and lower surfaces at the two opposite ends of the transverse sliding plate are fixedly connected with sliding protrusions, and the sliding protrusions slide in the cavity wall of the sliding cavity, and the ends of the sliding cavities on both sides close to the through groove are provided with small notches only for the sliding of the transverse sliding plate.

[0009] Optionally, a lower sliding block is fixedly connected to the central lower surface of the conical valve core, and a lower sliding groove for the lower sliding block to slide is formed on the inner wall of the solenoid valve body.

[0010] Optionally, an upper sliding block is fixedly connected to the central upper surface of the valve stem, and an upper sliding groove for sliding the upper sliding block is formed on the inner top wall of the upper shell.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model installs an electromagnet for adjusting the current to control the airway adjustment, so that the user can control the input current of the electromagnet as needed after connecting it to the line through a connector, and the static iron core that receives the signal performs electromagnetic attraction of the corresponding current on the moving iron core, and the moving iron core drives the valve stem and the conical valve core away from the valve cavity plate until the airway adjustment size formed after the conical valve core is away from the valve cavity opening as set is consistent with the required airway size, thereby ensuring the flexible and practical use of the solenoid valve of the oxygen concentrator.

[0013] In addition, when the passive iron core of the valve stem is driven to slide in the through groove, the horizontal sliding plates on both sides of the valve stem respectively seal the sliding cavities on both sides of the sliding solenoid valve body, thereby avoiding gas leakage and providing a sealing effect for the use of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the structure of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure at center A;

[0017] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the structure at A1 in the middle;

[0018] Figure 5 It is a top view of the structure of the utility model.

[0019] In the figure: 1-solenoid valve body, 2-air inlet, 3-air outlet, 4-upper shell, 5-electromagnet, 6-connector, 7-static iron core, 8-valve chamber plate, 9-valve chamber port, 10-conical valve core, 11-special-shaped sealing gasket, 12-valve stem, 13-cross slide plate, 14-moving iron core, 15-through groove, 16-sliding cavity, 17-sliding protrusion, 18-small notch, 19-first spring, 20-seal pad, 21-lower slide groove, 22-lower slider, 23-upper slide groove, 24-upper slider, 25-second spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] For example, see Figures 1 to 5 The utility model provides an airway adjustable oxygen concentrator electromagnetic valve, comprising an electromagnetic valve body 1, two sides of the electromagnetic valve body 1 are connected to each other and are provided with an air inlet 2 and an air outlet 3, an upper shell 4 is fixedly installed on the upper surface of the electromagnetic valve body 1 near the air inlet 2, an electromagnet 5 for adjusting the current to control the airway regulation is fixedly installed on the upper surface of the upper shell 4, a connector 6 for connecting a line for line connection is fixedly connected to one side of the electromagnet 5, a conical valve core 10 is slidably connected in the electromagnetic valve body 1, a valve cavity plate 8 is fixedly installed inside the side of the electromagnetic valve body 1 near the air outlet 3, and a valve cavity opening 9 is opened through the center of the valve cavity plate 8 and is sealed with the conical top of the conical valve core 10, and the upper surface of the conical valve core 10 is fixedly A valve stem 12 is connected, and a through groove 15 for the valve stem 12 to slide is provided between the upper shell 4 and the solenoid valve body 1. A static iron core 7 connected to the electromagnet 5 is fixedly installed on the inner surface of one side of the upper shell 4, and a moving iron core 14 electromagnetically attracted by the static iron core 7 is fixedly installed on the surface of one side of the valve stem 12. A second spring 25 is welded between the valve stem 12 and the inner surface of the upper shell 4. A group of sliding cavities 16 of different lengths are laterally provided inwardly on the inner walls of both sides of the solenoid valve body 1 close to the through groove 15. A group of transverse slides 13 are sealed and slidably connected in the two slide cavities 16. The transverse slides 13 are fixedly connected to both sides of the valve stem 12, and a first spring 19 is welded between the transverse slide 13 on the side close to the air inlet 2 and the cavity wall of the sliding cavity 16 on the longer side of the same side.

[0022] The upper and lower surfaces of the opposite ends of the horizontal slide plate 13 are fixedly connected with sliding protrusions 17, and the sliding protrusions 17 slide in the cavity wall of the sliding cavity 16. The ends of the sliding cavities 16 on both sides close to the through grooves 15 are each provided with a small notch 18 for only the sliding of the horizontal slide plate 13.

[0023] More specifically, in this embodiment, after the user connects to the circuit through the connector 6, he can control the input current of the electromagnet 5 as needed. The static iron core 7 that receives the signal performs electromagnetic attraction of the corresponding current on the moving iron core 14. The moving iron core 14 drives the valve stem 12 and the conical valve core 10 away from the valve cavity plate 8 until the airway adjustment size formed after the conical valve core 10 is away from the valve cavity opening 9 as set is consistent with the required airway size, thereby ensuring the flexible and practical use of the solenoid valve of the oxygen concentrator.

[0024] In addition, when the passive iron core 14 of the valve stem 12 is driven to slide in the through groove 15, the horizontal sliding plates 13 on both sides of the valve stem 12 respectively seal the sliding cavities 16 on both sides of the sliding solenoid valve body 1, thereby avoiding gas leakage and providing a sealing effect for the use of the solenoid valve.

[0025] When the electromagnet 5 is finally closed, the valve stem 12 drives the conical valve core 10 to close the valve cavity port 9 under the double rebound effect of the first spring 19 and the second spring 25 .

[0026] Furthermore, a special-shaped sealing gasket 11 is embedded and installed around the conical top surface of the conical valve core 10 , and the special-shaped sealing gasket 11 is fitted at the valve cavity opening 9 .

[0027] The upper and lower surfaces of the horizontal slide plate 13 close to the valve stem 12 are both embedded and connected with sealing gaskets 20 .

[0028] It is worth mentioning that when the conical valve core 10 closes the valve cavity opening 9, the special-shaped sealing gasket 11 fits against the valve cavity opening 9, ensuring the sealing effect of the solenoid valve body 1; and the sealing gasket 20 further ensures the sealing performance of the solenoid valve under the premise that the cross slide 13 slides sealingly in the sliding cavity 16.

[0029] Embodiment 2, based on the above embodiment:

[0030] Furthermore, a lower slider 22 is fixedly connected to the central lower surface of the conical valve core 10, a lower sliding groove 21 for the lower slider 22 to slide is provided on the inner wall of the solenoid valve body 1, an upper slider 24 is fixedly connected to the central upper surface of the valve stem 12, and an upper sliding groove 23 for the upper slider 24 to slide is provided on the inner top wall of the upper shell 4.

[0031] More specifically, in this embodiment, when the conical valve core 10 and the valve stem 12 slide to open and close the valve, they will uniformly drive the upper slider 24 and the lower slider 22 to perform corresponding sliding movements in their respective upper slide grooves 23 and lower slide grooves 21, thereby ensuring the sliding stability of the conical valve core 10 and the valve stem 12.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oxygen concentrator solenoid valve with adjustable airway, comprising a solenoid valve body (1), characterized in that: The two sides of the solenoid valve body (1) are interconnected and provided with an air inlet (2) and an air outlet (3); an upper shell (4) is fixedly mounted on the upper surface of the solenoid valve body (1) on the side close to the air inlet (2); an electromagnet (5) is fixedly mounted on the upper surface of the upper shell (4); a connector (6) is fixedly connected to one side of the electromagnet (5); a conical valve core (10) is slidably connected inside the solenoid valve body (1); a valve cavity plate (8) is fixedly mounted inside the side of the solenoid valve body (1) close to the air outlet (3); a valve cavity opening (9) is penetrated through the center of the valve cavity plate (8) and is sealed with the conical top of the conical valve core (10); a valve stem (12) is fixedly connected to the upper surface of the conical valve core (10); and a valve opening (9) for the conical valve core (10) to be inserted into the valve cavity plate (8) is provided between the upper shell (4) and the solenoid valve body (1). A through groove (15) for the valve stem (12) to slide, a static iron core (7) connected to the electromagnet (5) is fixedly installed on the inner surface of one side of the upper shell (4), a moving iron core (14) electromagnetically attracted by the static iron core (7) is fixedly installed on the inner surface of one side of the valve stem (12), a second spring (25) is welded between the valve stem (12) and the inner surface of the upper shell (4), a group of sliding cavities (16) of different lengths are laterally opened inward on the inner walls on both sides of the solenoid valve body (1) close to the through groove (15), a group of transverse slides (13) are sealed and slidably connected in the two slide cavities (16), the transverse slides (13) are fixedly connected to the two sides of the valve stem (12), and a first spring (19) is welded between the transverse slide (13) on the side close to the air inlet (2) and the cavity wall of the sliding cavity (16) on the same side with the longer side.

2. The solenoid valve of an oxygen concentrator with adjustable airway according to claim 1, characterized in that: A special-shaped sealing gasket (11) is embedded and installed around the conical top surface of the conical valve core (10), and the special-shaped sealing gasket (11) is fitted at the valve cavity opening (9).

3. The solenoid valve of an oxygen concentrator with adjustable airway according to claim 2, characterized in that: The upper and lower surfaces of the transverse slide plate (13) close to the valve stem (12) are both embedded and connected with sealing gaskets (20).

4. The solenoid valve of an oxygen concentrator with adjustable airway according to claim 1, characterized in that: The upper and lower surfaces of the two opposite ends of the transverse slide plate (13) are fixedly connected with sliding protrusions (17), and the sliding protrusions (17) slide in the cavity wall of the sliding cavity (16). The ends of the sliding cavities (16) on both sides close to the through grooves (15) are provided with small notches (18) for sliding only of the transverse slide plate (13).

5. The solenoid valve of an oxygen concentrator with adjustable airway according to claim 1, characterized in that: A lower slider (22) is fixedly connected to the central lower surface of the conical valve core (10), and a lower sliding groove (21) for the lower slider (22) to slide is provided on the inner wall of the solenoid valve body (1).

6. The solenoid valve of an oxygen concentrator with adjustable airway according to claim 5, characterized in that: An upper sliding block (24) is fixedly connected to the central upper surface of the valve stem (12), and an upper sliding groove (23) for the upper sliding block (24) to slide is provided on the inner top wall of the upper shell (4).

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